diff options
Diffstat (limited to 'drivers/media/usb/cpia2')
| -rw-r--r-- | drivers/media/usb/cpia2/Kconfig | 9 | ||||
| -rw-r--r-- | drivers/media/usb/cpia2/Makefile | 3 | ||||
| -rw-r--r-- | drivers/media/usb/cpia2/cpia2.h | 484 | ||||
| -rw-r--r-- | drivers/media/usb/cpia2/cpia2_core.c | 2443 | ||||
| -rw-r--r-- | drivers/media/usb/cpia2/cpia2_registers.h | 472 | ||||
| -rw-r--r-- | drivers/media/usb/cpia2/cpia2_usb.c | 975 | ||||
| -rw-r--r-- | drivers/media/usb/cpia2/cpia2_v4l.c | 1263 |
7 files changed, 5649 insertions, 0 deletions
diff --git a/drivers/media/usb/cpia2/Kconfig b/drivers/media/usb/cpia2/Kconfig new file mode 100644 index 000000000..66e9283f5 --- /dev/null +++ b/drivers/media/usb/cpia2/Kconfig @@ -0,0 +1,9 @@ +config VIDEO_CPIA2 + tristate "CPiA2 Video For Linux" + depends on VIDEO_DEV && USB && VIDEO_V4L2 + ---help--- + This is the video4linux driver for cameras based on Vision's CPiA2 + (Colour Processor Interface ASIC), such as the Digital Blue QX5 + Microscope. If you have one of these cameras, say Y here + + This driver is also available as a module (cpia2). diff --git a/drivers/media/usb/cpia2/Makefile b/drivers/media/usb/cpia2/Makefile new file mode 100644 index 000000000..828cf1b1d --- /dev/null +++ b/drivers/media/usb/cpia2/Makefile @@ -0,0 +1,3 @@ +cpia2-objs := cpia2_v4l.o cpia2_usb.o cpia2_core.o + +obj-$(CONFIG_VIDEO_CPIA2) += cpia2.o diff --git a/drivers/media/usb/cpia2/cpia2.h b/drivers/media/usb/cpia2/cpia2.h new file mode 100644 index 000000000..50c952250 --- /dev/null +++ b/drivers/media/usb/cpia2/cpia2.h @@ -0,0 +1,484 @@ +/**************************************************************************** + * + * Filename: cpia2.h + * + * Copyright 2001, STMicrolectronics, Inc. + * + * Contact: steve.miller@st.com + * + * Description: + * This is a USB driver for CPiA2 based video cameras. + * + * This driver is modelled on the cpia usb driver by + * Jochen Scharrlach and Johannes Erdfeldt. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + ****************************************************************************/ + +#ifndef __CPIA2_H__ +#define __CPIA2_H__ + +#include <linux/videodev2.h> +#include <linux/usb.h> +#include <linux/poll.h> +#include <media/v4l2-common.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ctrls.h> + +#include "cpia2_registers.h" + +/* define for verbose debug output */ +//#define _CPIA2_DEBUG_ + +/*** + * Image defines + ***/ + +/* Misc constants */ +#define ALLOW_CORRUPT 0 /* Causes collater to discard checksum */ + +/* USB Transfer mode */ +#define XFER_ISOC 0 +#define XFER_BULK 1 + +/* USB Alternates */ +#define USBIF_CMDONLY 0 +#define USBIF_BULK 1 +#define USBIF_ISO_1 2 /* 128 bytes/ms */ +#define USBIF_ISO_2 3 /* 384 bytes/ms */ +#define USBIF_ISO_3 4 /* 640 bytes/ms */ +#define USBIF_ISO_4 5 /* 768 bytes/ms */ +#define USBIF_ISO_5 6 /* 896 bytes/ms */ +#define USBIF_ISO_6 7 /* 1023 bytes/ms */ + +/* Flicker Modes */ +#define NEVER_FLICKER 0 +#define FLICKER_60 60 +#define FLICKER_50 50 + +/* Debug flags */ +#define DEBUG_NONE 0 +#define DEBUG_REG 0x00000001 +#define DEBUG_DUMP_PATCH 0x00000002 +#define DEBUG_DUMP_REGS 0x00000004 + +/*** + * Video frame sizes + ***/ +enum { + VIDEOSIZE_VGA = 0, /* 640x480 */ + VIDEOSIZE_CIF, /* 352x288 */ + VIDEOSIZE_QVGA, /* 320x240 */ + VIDEOSIZE_QCIF, /* 176x144 */ + VIDEOSIZE_288_216, + VIDEOSIZE_256_192, + VIDEOSIZE_224_168, + VIDEOSIZE_192_144, +}; + +#define STV_IMAGE_CIF_ROWS 288 +#define STV_IMAGE_CIF_COLS 352 + +#define STV_IMAGE_QCIF_ROWS 144 +#define STV_IMAGE_QCIF_COLS 176 + +#define STV_IMAGE_VGA_ROWS 480 +#define STV_IMAGE_VGA_COLS 640 + +#define STV_IMAGE_QVGA_ROWS 240 +#define STV_IMAGE_QVGA_COLS 320 + +#define JPEG_MARKER_COM (1<<6) /* Comment segment */ + +/*** + * Enums + ***/ +/* Sensor types available with cpia2 asics */ +enum sensors { + CPIA2_SENSOR_410, + CPIA2_SENSOR_500 +}; + +/* Asic types available in the CPiA2 architecture */ +#define CPIA2_ASIC_672 0x67 + +/* Device types (stv672, stv676, etc) */ +#define DEVICE_STV_672 0x0001 +#define DEVICE_STV_676 0x0002 + +enum frame_status { + FRAME_EMPTY, + FRAME_READING, /* In the process of being grabbed into */ + FRAME_READY, /* Ready to be read */ + FRAME_ERROR, +}; + +/*** + * Register access (for USB request byte) + ***/ +enum { + CAMERAACCESS_SYSTEM = 0, + CAMERAACCESS_VC, + CAMERAACCESS_VP, + CAMERAACCESS_IDATA +}; + +#define CAMERAACCESS_TYPE_BLOCK 0x00 +#define CAMERAACCESS_TYPE_RANDOM 0x04 +#define CAMERAACCESS_TYPE_MASK 0x08 +#define CAMERAACCESS_TYPE_REPEAT 0x0C + +#define TRANSFER_READ 0 +#define TRANSFER_WRITE 1 + +#define DEFAULT_ALT USBIF_ISO_6 +#define DEFAULT_BRIGHTNESS 0x46 +#define DEFAULT_CONTRAST 0x93 +#define DEFAULT_SATURATION 0x7f + +/* Power state */ +#define HI_POWER_MODE CPIA2_SYSTEM_CONTROL_HIGH_POWER +#define LO_POWER_MODE CPIA2_SYSTEM_CONTROL_LOW_POWER + + +/******** + * Commands + *******/ +enum { + CPIA2_CMD_NONE = 0, + CPIA2_CMD_GET_VERSION, + CPIA2_CMD_GET_PNP_ID, + CPIA2_CMD_GET_ASIC_TYPE, + CPIA2_CMD_GET_SENSOR, + CPIA2_CMD_GET_VP_DEVICE, + CPIA2_CMD_GET_VP_BRIGHTNESS, + CPIA2_CMD_SET_VP_BRIGHTNESS, + CPIA2_CMD_GET_CONTRAST, + CPIA2_CMD_SET_CONTRAST, + CPIA2_CMD_GET_VP_SATURATION, + CPIA2_CMD_SET_VP_SATURATION, + CPIA2_CMD_GET_VP_GPIO_DIRECTION, + CPIA2_CMD_SET_VP_GPIO_DIRECTION, + CPIA2_CMD_GET_VP_GPIO_DATA, + CPIA2_CMD_SET_VP_GPIO_DATA, + CPIA2_CMD_GET_VC_MP_GPIO_DIRECTION, + CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION, + CPIA2_CMD_GET_VC_MP_GPIO_DATA, + CPIA2_CMD_SET_VC_MP_GPIO_DATA, + CPIA2_CMD_ENABLE_PACKET_CTRL, + CPIA2_CMD_GET_FLICKER_MODES, + CPIA2_CMD_SET_FLICKER_MODES, + CPIA2_CMD_RESET_FIFO, /* clear fifo and enable stream block */ + CPIA2_CMD_SET_HI_POWER, + CPIA2_CMD_SET_LOW_POWER, + CPIA2_CMD_CLEAR_V2W_ERR, + CPIA2_CMD_SET_USER_MODE, + CPIA2_CMD_GET_USER_MODE, + CPIA2_CMD_FRAMERATE_REQ, + CPIA2_CMD_SET_COMPRESSION_STATE, + CPIA2_CMD_GET_WAKEUP, + CPIA2_CMD_SET_WAKEUP, + CPIA2_CMD_GET_PW_CONTROL, + CPIA2_CMD_SET_PW_CONTROL, + CPIA2_CMD_GET_SYSTEM_CTRL, + CPIA2_CMD_SET_SYSTEM_CTRL, + CPIA2_CMD_GET_VP_SYSTEM_STATE, + CPIA2_CMD_GET_VP_SYSTEM_CTRL, + CPIA2_CMD_SET_VP_SYSTEM_CTRL, + CPIA2_CMD_GET_VP_EXP_MODES, + CPIA2_CMD_SET_VP_EXP_MODES, + CPIA2_CMD_GET_DEVICE_CONFIG, + CPIA2_CMD_SET_DEVICE_CONFIG, + CPIA2_CMD_SET_SERIAL_ADDR, + CPIA2_CMD_SET_SENSOR_CR1, + CPIA2_CMD_GET_VC_CONTROL, + CPIA2_CMD_SET_VC_CONTROL, + CPIA2_CMD_SET_TARGET_KB, + CPIA2_CMD_SET_DEF_JPEG_OPT, + CPIA2_CMD_REHASH_VP4, + CPIA2_CMD_GET_USER_EFFECTS, + CPIA2_CMD_SET_USER_EFFECTS +}; + +enum user_cmd { + COMMAND_NONE = 0x00000001, + COMMAND_SET_FPS = 0x00000002, + COMMAND_SET_COLOR_PARAMS = 0x00000004, + COMMAND_GET_COLOR_PARAMS = 0x00000008, + COMMAND_SET_FORMAT = 0x00000010, /* size, etc */ + COMMAND_SET_FLICKER = 0x00000020 +}; + +/*** + * Some defines specific to the 676 chip + ***/ +#define CAMACC_CIF 0x01 +#define CAMACC_VGA 0x02 +#define CAMACC_QCIF 0x04 +#define CAMACC_QVGA 0x08 + + +struct cpia2_register { + u8 index; + u8 value; +}; + +struct cpia2_reg_mask { + u8 index; + u8 and_mask; + u8 or_mask; + u8 fill; +}; + +struct cpia2_command { + u32 command; + u8 req_mode; /* (Block or random) | registerBank */ + u8 reg_count; + u8 direction; + u8 start; + union reg_types { + struct cpia2_register registers[32]; + struct cpia2_reg_mask masks[16]; + u8 block_data[64]; + u8 *patch_data; /* points to function defined block */ + } buffer; +}; + +struct camera_params { + struct { + u8 firmware_revision_hi; /* For system register set (bank 0) */ + u8 firmware_revision_lo; + u8 asic_id; /* Video Compressor set (bank 1) */ + u8 asic_rev; + u8 vp_device_hi; /* Video Processor set (bank 2) */ + u8 vp_device_lo; + u8 sensor_flags; + u8 sensor_rev; + } version; + + struct { + u32 device_type; /* enumerated from vendor/product ids. + * Currently, either STV_672 or STV_676 */ + u16 vendor; + u16 product; + u16 device_revision; + } pnp_id; + + struct { + u8 brightness; /* CPIA2_VP_EXPOSURE_TARGET */ + u8 contrast; /* Note: this is CPIA2_VP_YRANGE */ + u8 saturation; /* CPIA2_VP_SATURATION */ + } color_params; + + struct { + u8 cam_register; + u8 flicker_mode_req; /* 1 if flicker on, else never flicker */ + } flicker_control; + + struct { + u8 jpeg_options; + u8 creep_period; + u8 user_squeeze; + u8 inhibit_htables; + } compression; + + struct { + u8 ohsize; /* output image size */ + u8 ovsize; + u8 hcrop; /* cropping start_pos/4 */ + u8 vcrop; + u8 hphase; /* scaling registers */ + u8 vphase; + u8 hispan; + u8 vispan; + u8 hicrop; + u8 vicrop; + u8 hifraction; + u8 vifraction; + } image_size; + + struct { + int width; /* actual window width */ + int height; /* actual window height */ + } roi; + + struct { + u8 video_mode; + u8 frame_rate; + u8 video_size; /* Not a register, just a convenience for cropped sizes */ + u8 gpio_direction; + u8 gpio_data; + u8 system_ctrl; + u8 system_state; + u8 lowlight_boost; /* Bool: 0 = off, 1 = on */ + u8 device_config; + u8 exposure_modes; + u8 user_effects; + } vp_params; + + struct { + u8 pw_control; + u8 wakeup; + u8 vc_control; + u8 vc_mp_direction; + u8 vc_mp_data; + u8 quality; + } vc_params; + + struct { + u8 power_mode; + u8 system_ctrl; + u8 stream_mode; /* This is the current alternate for usb drivers */ + u8 allow_corrupt; + } camera_state; +}; + +#define NUM_SBUF 2 + +struct cpia2_sbuf { + char *data; + struct urb *urb; +}; + +struct framebuf { + struct timeval timestamp; + unsigned long seq; + int num; + int length; + int max_length; + volatile enum frame_status status; + u8 *data; + struct framebuf *next; +}; + +struct camera_data { + /* locks */ + struct v4l2_device v4l2_dev; + struct mutex v4l2_lock; /* serialize file operations */ + struct v4l2_ctrl_handler hdl; + struct { + /* Lights control cluster */ + struct v4l2_ctrl *top_light; + struct v4l2_ctrl *bottom_light; + }; + struct v4l2_ctrl *usb_alt; + + /* camera status */ + int first_image_seen; + enum sensors sensor_type; + u8 flush; + struct v4l2_fh *stream_fh; + u8 mmapped; + int streaming; /* 0 = no, 1 = yes */ + int xfer_mode; /* XFER_BULK or XFER_ISOC */ + struct camera_params params; /* camera settings */ + + /* v4l */ + int video_size; /* VIDEO_SIZE_ */ + struct video_device vdev; /* v4l videodev */ + u32 width; + u32 height; /* Its size */ + __u32 pixelformat; /* Format fourcc */ + + /* USB */ + struct usb_device *dev; + unsigned char iface; + unsigned int cur_alt; + unsigned int old_alt; + struct cpia2_sbuf sbuf[NUM_SBUF]; /* Double buffering */ + + wait_queue_head_t wq_stream; + + /* Buffering */ + u32 frame_size; + int num_frames; + unsigned long frame_count; + u8 *frame_buffer; /* frame buffer data */ + struct framebuf *buffers; + struct framebuf * volatile curbuff; + struct framebuf *workbuff; + + /* MJPEG Extension */ + int APPn; /* Number of APP segment to be written, must be 0..15 */ + int APP_len; /* Length of data in JPEG APPn segment */ + char APP_data[60]; /* Data in the JPEG APPn segment. */ + + int COM_len; /* Length of data in JPEG COM segment */ + char COM_data[60]; /* Data in JPEG COM segment */ +}; + +/* v4l */ +int cpia2_register_camera(struct camera_data *cam); +void cpia2_unregister_camera(struct camera_data *cam); +void cpia2_camera_release(struct v4l2_device *v4l2_dev); + +/* core */ +int cpia2_reset_camera(struct camera_data *cam); +int cpia2_set_low_power(struct camera_data *cam); +void cpia2_dbg_dump_registers(struct camera_data *cam); +int cpia2_match_video_size(int width, int height); +void cpia2_set_camera_state(struct camera_data *cam); +void cpia2_save_camera_state(struct camera_data *cam); +void cpia2_set_color_params(struct camera_data *cam); +void cpia2_set_brightness(struct camera_data *cam, unsigned char value); +void cpia2_set_contrast(struct camera_data *cam, unsigned char value); +void cpia2_set_saturation(struct camera_data *cam, unsigned char value); +int cpia2_set_flicker_mode(struct camera_data *cam, int mode); +void cpia2_set_format(struct camera_data *cam); +int cpia2_send_command(struct camera_data *cam, struct cpia2_command *cmd); +int cpia2_do_command(struct camera_data *cam, + unsigned int command, + unsigned char direction, unsigned char param); +void cpia2_deinit_camera_struct(struct camera_data *cam, struct usb_interface *intf); +struct camera_data *cpia2_init_camera_struct(struct usb_interface *intf); +int cpia2_init_camera(struct camera_data *cam); +int cpia2_allocate_buffers(struct camera_data *cam); +void cpia2_free_buffers(struct camera_data *cam); +long cpia2_read(struct camera_data *cam, + char __user *buf, unsigned long count, int noblock); +__poll_t cpia2_poll(struct camera_data *cam, + struct file *filp, poll_table *wait); +int cpia2_remap_buffer(struct camera_data *cam, struct vm_area_struct *vma); +void cpia2_set_property_flip(struct camera_data *cam, int prop_val); +void cpia2_set_property_mirror(struct camera_data *cam, int prop_val); +int cpia2_set_gpio(struct camera_data *cam, unsigned char setting); +int cpia2_set_fps(struct camera_data *cam, int framerate); + +/* usb */ +int cpia2_usb_init(void); +void cpia2_usb_cleanup(void); +int cpia2_usb_transfer_cmd(struct camera_data *cam, void *registers, + u8 request, u8 start, u8 count, u8 direction); +int cpia2_usb_stream_start(struct camera_data *cam, unsigned int alternate); +int cpia2_usb_stream_stop(struct camera_data *cam); +int cpia2_usb_stream_pause(struct camera_data *cam); +int cpia2_usb_stream_resume(struct camera_data *cam); +int cpia2_usb_change_streaming_alternate(struct camera_data *cam, + unsigned int alt); + + +/* ----------------------- debug functions ---------------------- */ +#ifdef _CPIA2_DEBUG_ +#define ALOG(lev, fmt, args...) printk(lev "%s:%d %s(): " fmt, __FILE__, __LINE__, __func__, ## args) +#define LOG(fmt, args...) ALOG(KERN_INFO, fmt, ## args) +#define ERR(fmt, args...) ALOG(KERN_ERR, fmt, ## args) +#define DBG(fmt, args...) ALOG(KERN_DEBUG, fmt, ## args) +#else +#define ALOG(fmt,args...) printk(fmt,##args) +#define LOG(fmt,args...) ALOG(KERN_INFO "cpia2: "fmt,##args) +#define ERR(fmt,args...) ALOG(KERN_ERR "cpia2: "fmt,##args) +#define DBG(fmn,args...) do {} while(0) +#endif +/* No function or lineno, for shorter lines */ +#define KINFO(fmt, args...) printk(KERN_INFO fmt,##args) + +#endif diff --git a/drivers/media/usb/cpia2/cpia2_core.c b/drivers/media/usb/cpia2/cpia2_core.c new file mode 100644 index 000000000..42cce7e94 --- /dev/null +++ b/drivers/media/usb/cpia2/cpia2_core.c @@ -0,0 +1,2443 @@ +/**************************************************************************** + * + * Filename: cpia2_core.c + * + * Copyright 2001, STMicrolectronics, Inc. + * Contact: steve.miller@st.com + * + * Description: + * This is a USB driver for CPia2 based video cameras. + * The infrastructure of this driver is based on the cpia usb driver by + * Jochen Scharrlach and Johannes Erdfeldt. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Stripped of 2.4 stuff ready for main kernel submit by + * Alan Cox <alan@lxorguk.ukuu.org.uk> + * + ****************************************************************************/ + +#include "cpia2.h" + +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/mm.h> +#include <linux/vmalloc.h> +#include <linux/firmware.h> +#include <linux/sched/signal.h> + +#define FIRMWARE "cpia2/stv0672_vp4.bin" +MODULE_FIRMWARE(FIRMWARE); + +/* #define _CPIA2_DEBUG_ */ + +#ifdef _CPIA2_DEBUG_ + +static const char *block_name[] = { + "System", + "VC", + "VP", + "IDATA" +}; +#endif + +static unsigned int debugs_on; /* default 0 - DEBUG_REG */ + + +/****************************************************************************** + * + * Forward Declarations + * + *****************************************************************************/ +static int apply_vp_patch(struct camera_data *cam); +static int set_default_user_mode(struct camera_data *cam); +static int set_vw_size(struct camera_data *cam, int size); +static int configure_sensor(struct camera_data *cam, + int reqwidth, int reqheight); +static int config_sensor_410(struct camera_data *cam, + int reqwidth, int reqheight); +static int config_sensor_500(struct camera_data *cam, + int reqwidth, int reqheight); +static int set_all_properties(struct camera_data *cam); +static void wake_system(struct camera_data *cam); +static void set_lowlight_boost(struct camera_data *cam); +static void reset_camera_struct(struct camera_data *cam); +static int cpia2_set_high_power(struct camera_data *cam); + +/* Here we want the physical address of the memory. + * This is used when initializing the contents of the + * area and marking the pages as reserved. + */ +static inline unsigned long kvirt_to_pa(unsigned long adr) +{ + unsigned long kva, ret; + + kva = (unsigned long) page_address(vmalloc_to_page((void *)adr)); + kva |= adr & (PAGE_SIZE-1); /* restore the offset */ + ret = __pa(kva); + return ret; +} + +static void *rvmalloc(unsigned long size) +{ + void *mem; + unsigned long adr; + + /* Round it off to PAGE_SIZE */ + size = PAGE_ALIGN(size); + + mem = vmalloc_32(size); + if (!mem) + return NULL; + + memset(mem, 0, size); /* Clear the ram out, no junk to the user */ + adr = (unsigned long) mem; + + while ((long)size > 0) { + SetPageReserved(vmalloc_to_page((void *)adr)); + adr += PAGE_SIZE; + size -= PAGE_SIZE; + } + return mem; +} + +static void rvfree(void *mem, unsigned long size) +{ + unsigned long adr; + + if (!mem) + return; + + size = PAGE_ALIGN(size); + + adr = (unsigned long) mem; + while ((long)size > 0) { + ClearPageReserved(vmalloc_to_page((void *)adr)); + adr += PAGE_SIZE; + size -= PAGE_SIZE; + } + vfree(mem); +} + +/****************************************************************************** + * + * cpia2_do_command + * + * Send an arbitrary command to the camera. For commands that read from + * the camera, copy the buffers into the proper param structures. + *****************************************************************************/ +int cpia2_do_command(struct camera_data *cam, + u32 command, u8 direction, u8 param) +{ + int retval = 0; + struct cpia2_command cmd; + unsigned int device = cam->params.pnp_id.device_type; + + cmd.command = command; + cmd.reg_count = 2; /* default */ + cmd.direction = direction; + + /*** + * Set up the command. + ***/ + switch (command) { + case CPIA2_CMD_GET_VERSION: + cmd.req_mode = + CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM; + cmd.start = CPIA2_SYSTEM_DEVICE_HI; + break; + case CPIA2_CMD_GET_PNP_ID: + cmd.req_mode = + CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM; + cmd.reg_count = 8; + cmd.start = CPIA2_SYSTEM_DESCRIP_VID_HI; + break; + case CPIA2_CMD_GET_ASIC_TYPE: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC; + cmd.start = CPIA2_VC_ASIC_ID; + break; + case CPIA2_CMD_GET_SENSOR: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.start = CPIA2_VP_SENSOR_FLAGS; + break; + case CPIA2_CMD_GET_VP_DEVICE: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.start = CPIA2_VP_DEVICEH; + break; + case CPIA2_CMD_SET_VP_BRIGHTNESS: + cmd.buffer.block_data[0] = param; + /* fall through */ + case CPIA2_CMD_GET_VP_BRIGHTNESS: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.reg_count = 1; + if (device == DEVICE_STV_672) + cmd.start = CPIA2_VP4_EXPOSURE_TARGET; + else + cmd.start = CPIA2_VP5_EXPOSURE_TARGET; + break; + case CPIA2_CMD_SET_CONTRAST: + cmd.buffer.block_data[0] = param; + /* fall through */ + case CPIA2_CMD_GET_CONTRAST: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.reg_count = 1; + cmd.start = CPIA2_VP_YRANGE; + break; + case CPIA2_CMD_SET_VP_SATURATION: + cmd.buffer.block_data[0] = param; + /* fall through */ + case CPIA2_CMD_GET_VP_SATURATION: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.reg_count = 1; + if (device == DEVICE_STV_672) + cmd.start = CPIA2_VP_SATURATION; + else + cmd.start = CPIA2_VP5_MCUVSATURATION; + break; + case CPIA2_CMD_SET_VP_GPIO_DATA: + cmd.buffer.block_data[0] = param; + /* fall through */ + case CPIA2_CMD_GET_VP_GPIO_DATA: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.reg_count = 1; + cmd.start = CPIA2_VP_GPIO_DATA; + break; + case CPIA2_CMD_SET_VP_GPIO_DIRECTION: + cmd.buffer.block_data[0] = param; + /* fall through */ + case CPIA2_CMD_GET_VP_GPIO_DIRECTION: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.reg_count = 1; + cmd.start = CPIA2_VP_GPIO_DIRECTION; + break; + case CPIA2_CMD_SET_VC_MP_GPIO_DATA: + cmd.buffer.block_data[0] = param; + /* fall through */ + case CPIA2_CMD_GET_VC_MP_GPIO_DATA: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC; + cmd.reg_count = 1; + cmd.start = CPIA2_VC_MP_DATA; + break; + case CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION: + cmd.buffer.block_data[0] = param; + /*fall through */ + case CPIA2_CMD_GET_VC_MP_GPIO_DIRECTION: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC; + cmd.reg_count = 1; + cmd.start = CPIA2_VC_MP_DIR; + break; + case CPIA2_CMD_ENABLE_PACKET_CTRL: + cmd.req_mode = + CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM; + cmd.start = CPIA2_SYSTEM_INT_PACKET_CTRL; + cmd.reg_count = 1; + cmd.buffer.block_data[0] = param; + break; + case CPIA2_CMD_SET_FLICKER_MODES: + cmd.buffer.block_data[0] = param; + /* fall through */ + case CPIA2_CMD_GET_FLICKER_MODES: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.reg_count = 1; + cmd.start = CPIA2_VP_FLICKER_MODES; + break; + case CPIA2_CMD_RESET_FIFO: /* clear fifo and enable stream block */ + cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC; + cmd.reg_count = 2; + cmd.start = 0; + cmd.buffer.registers[0].index = CPIA2_VC_ST_CTRL; + cmd.buffer.registers[0].value = CPIA2_VC_ST_CTRL_SRC_VC | + CPIA2_VC_ST_CTRL_DST_USB | CPIA2_VC_ST_CTRL_EOF_DETECT; + cmd.buffer.registers[1].index = CPIA2_VC_ST_CTRL; + cmd.buffer.registers[1].value = CPIA2_VC_ST_CTRL_SRC_VC | + CPIA2_VC_ST_CTRL_DST_USB | + CPIA2_VC_ST_CTRL_EOF_DETECT | + CPIA2_VC_ST_CTRL_FIFO_ENABLE; + break; + case CPIA2_CMD_SET_HI_POWER: + cmd.req_mode = + CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_SYSTEM; + cmd.reg_count = 2; + cmd.buffer.registers[0].index = + CPIA2_SYSTEM_SYSTEM_CONTROL; + cmd.buffer.registers[1].index = + CPIA2_SYSTEM_SYSTEM_CONTROL; + cmd.buffer.registers[0].value = CPIA2_SYSTEM_CONTROL_CLEAR_ERR; + cmd.buffer.registers[1].value = + CPIA2_SYSTEM_CONTROL_HIGH_POWER; + break; + case CPIA2_CMD_SET_LOW_POWER: + cmd.req_mode = + CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM; + cmd.reg_count = 1; + cmd.start = CPIA2_SYSTEM_SYSTEM_CONTROL; + cmd.buffer.block_data[0] = 0; + break; + case CPIA2_CMD_CLEAR_V2W_ERR: + cmd.req_mode = + CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM; + cmd.reg_count = 1; + cmd.start = CPIA2_SYSTEM_SYSTEM_CONTROL; + cmd.buffer.block_data[0] = CPIA2_SYSTEM_CONTROL_CLEAR_ERR; + break; + case CPIA2_CMD_SET_USER_MODE: + cmd.buffer.block_data[0] = param; + /* fall through */ + case CPIA2_CMD_GET_USER_MODE: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.reg_count = 1; + if (device == DEVICE_STV_672) + cmd.start = CPIA2_VP4_USER_MODE; + else + cmd.start = CPIA2_VP5_USER_MODE; + break; + case CPIA2_CMD_FRAMERATE_REQ: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.reg_count = 1; + if (device == DEVICE_STV_672) + cmd.start = CPIA2_VP4_FRAMERATE_REQUEST; + else + cmd.start = CPIA2_VP5_FRAMERATE_REQUEST; + cmd.buffer.block_data[0] = param; + break; + case CPIA2_CMD_SET_WAKEUP: + cmd.buffer.block_data[0] = param; + /* fall through */ + case CPIA2_CMD_GET_WAKEUP: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC; + cmd.reg_count = 1; + cmd.start = CPIA2_VC_WAKEUP; + break; + case CPIA2_CMD_SET_PW_CONTROL: + cmd.buffer.block_data[0] = param; + /* fall through */ + case CPIA2_CMD_GET_PW_CONTROL: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC; + cmd.reg_count = 1; + cmd.start = CPIA2_VC_PW_CTRL; + break; + case CPIA2_CMD_GET_VP_SYSTEM_STATE: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.reg_count = 1; + cmd.start = CPIA2_VP_SYSTEMSTATE; + break; + case CPIA2_CMD_SET_SYSTEM_CTRL: + cmd.buffer.block_data[0] = param; + /* fall through */ + case CPIA2_CMD_GET_SYSTEM_CTRL: + cmd.req_mode = + CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM; + cmd.reg_count = 1; + cmd.start = CPIA2_SYSTEM_SYSTEM_CONTROL; + break; + case CPIA2_CMD_SET_VP_SYSTEM_CTRL: + cmd.buffer.block_data[0] = param; + /* fall through */ + case CPIA2_CMD_GET_VP_SYSTEM_CTRL: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.reg_count = 1; + cmd.start = CPIA2_VP_SYSTEMCTRL; + break; + case CPIA2_CMD_SET_VP_EXP_MODES: + cmd.buffer.block_data[0] = param; + /* fall through */ + case CPIA2_CMD_GET_VP_EXP_MODES: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.reg_count = 1; + cmd.start = CPIA2_VP_EXPOSURE_MODES; + break; + case CPIA2_CMD_SET_DEVICE_CONFIG: + cmd.buffer.block_data[0] = param; + /* fall through */ + case CPIA2_CMD_GET_DEVICE_CONFIG: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.reg_count = 1; + cmd.start = CPIA2_VP_DEVICE_CONFIG; + break; + case CPIA2_CMD_SET_SERIAL_ADDR: + cmd.buffer.block_data[0] = param; + cmd.req_mode = + CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM; + cmd.reg_count = 1; + cmd.start = CPIA2_SYSTEM_VP_SERIAL_ADDR; + break; + case CPIA2_CMD_SET_SENSOR_CR1: + cmd.buffer.block_data[0] = param; + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.reg_count = 1; + cmd.start = CPIA2_SENSOR_CR1; + break; + case CPIA2_CMD_SET_VC_CONTROL: + cmd.buffer.block_data[0] = param; + /* fall through */ + case CPIA2_CMD_GET_VC_CONTROL: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC; + cmd.reg_count = 1; + cmd.start = CPIA2_VC_VC_CTRL; + break; + case CPIA2_CMD_SET_TARGET_KB: + cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC; + cmd.reg_count = 1; + cmd.buffer.registers[0].index = CPIA2_VC_VC_TARGET_KB; + cmd.buffer.registers[0].value = param; + break; + case CPIA2_CMD_SET_DEF_JPEG_OPT: + cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC; + cmd.reg_count = 4; + cmd.buffer.registers[0].index = CPIA2_VC_VC_JPEG_OPT; + cmd.buffer.registers[0].value = + CPIA2_VC_VC_JPEG_OPT_DOUBLE_SQUEEZE; + cmd.buffer.registers[1].index = CPIA2_VC_VC_USER_SQUEEZE; + cmd.buffer.registers[1].value = 20; + cmd.buffer.registers[2].index = CPIA2_VC_VC_CREEP_PERIOD; + cmd.buffer.registers[2].value = 2; + cmd.buffer.registers[3].index = CPIA2_VC_VC_JPEG_OPT; + cmd.buffer.registers[3].value = CPIA2_VC_VC_JPEG_OPT_DEFAULT; + break; + case CPIA2_CMD_REHASH_VP4: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.reg_count = 1; + cmd.start = CPIA2_VP_REHASH_VALUES; + cmd.buffer.block_data[0] = param; + break; + case CPIA2_CMD_SET_USER_EFFECTS: /* Note: Be careful with this as + this register can also affect + flicker modes */ + cmd.buffer.block_data[0] = param; + /* fall through */ + case CPIA2_CMD_GET_USER_EFFECTS: + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.reg_count = 1; + if (device == DEVICE_STV_672) + cmd.start = CPIA2_VP4_USER_EFFECTS; + else + cmd.start = CPIA2_VP5_USER_EFFECTS; + break; + default: + LOG("DoCommand received invalid command\n"); + return -EINVAL; + } + + retval = cpia2_send_command(cam, &cmd); + if (retval) { + return retval; + } + + /*** + * Now copy any results from a read into the appropriate param struct. + ***/ + switch (command) { + case CPIA2_CMD_GET_VERSION: + cam->params.version.firmware_revision_hi = + cmd.buffer.block_data[0]; + cam->params.version.firmware_revision_lo = + cmd.buffer.block_data[1]; + break; + case CPIA2_CMD_GET_PNP_ID: + cam->params.pnp_id.vendor = (cmd.buffer.block_data[0] << 8) | + cmd.buffer.block_data[1]; + cam->params.pnp_id.product = (cmd.buffer.block_data[2] << 8) | + cmd.buffer.block_data[3]; + cam->params.pnp_id.device_revision = + (cmd.buffer.block_data[4] << 8) | + cmd.buffer.block_data[5]; + if (cam->params.pnp_id.vendor == 0x553) { + if (cam->params.pnp_id.product == 0x100) { + cam->params.pnp_id.device_type = DEVICE_STV_672; + } else if (cam->params.pnp_id.product == 0x140 || + cam->params.pnp_id.product == 0x151) { + cam->params.pnp_id.device_type = DEVICE_STV_676; + } + } + break; + case CPIA2_CMD_GET_ASIC_TYPE: + cam->params.version.asic_id = cmd.buffer.block_data[0]; + cam->params.version.asic_rev = cmd.buffer.block_data[1]; + break; + case CPIA2_CMD_GET_SENSOR: + cam->params.version.sensor_flags = cmd.buffer.block_data[0]; + cam->params.version.sensor_rev = cmd.buffer.block_data[1]; + break; + case CPIA2_CMD_GET_VP_DEVICE: + cam->params.version.vp_device_hi = cmd.buffer.block_data[0]; + cam->params.version.vp_device_lo = cmd.buffer.block_data[1]; + break; + case CPIA2_CMD_GET_VP_GPIO_DATA: + cam->params.vp_params.gpio_data = cmd.buffer.block_data[0]; + break; + case CPIA2_CMD_GET_VP_GPIO_DIRECTION: + cam->params.vp_params.gpio_direction = cmd.buffer.block_data[0]; + break; + case CPIA2_CMD_GET_VC_MP_GPIO_DIRECTION: + cam->params.vc_params.vc_mp_direction =cmd.buffer.block_data[0]; + break; + case CPIA2_CMD_GET_VC_MP_GPIO_DATA: + cam->params.vc_params.vc_mp_data = cmd.buffer.block_data[0]; + break; + case CPIA2_CMD_GET_FLICKER_MODES: + cam->params.flicker_control.cam_register = + cmd.buffer.block_data[0]; + break; + case CPIA2_CMD_GET_WAKEUP: + cam->params.vc_params.wakeup = cmd.buffer.block_data[0]; + break; + case CPIA2_CMD_GET_PW_CONTROL: + cam->params.vc_params.pw_control = cmd.buffer.block_data[0]; + break; + case CPIA2_CMD_GET_SYSTEM_CTRL: + cam->params.camera_state.system_ctrl = cmd.buffer.block_data[0]; + break; + case CPIA2_CMD_GET_VP_SYSTEM_STATE: + cam->params.vp_params.system_state = cmd.buffer.block_data[0]; + break; + case CPIA2_CMD_GET_VP_SYSTEM_CTRL: + cam->params.vp_params.system_ctrl = cmd.buffer.block_data[0]; + break; + case CPIA2_CMD_GET_VP_EXP_MODES: + cam->params.vp_params.exposure_modes = cmd.buffer.block_data[0]; + break; + case CPIA2_CMD_GET_DEVICE_CONFIG: + cam->params.vp_params.device_config = cmd.buffer.block_data[0]; + break; + case CPIA2_CMD_GET_VC_CONTROL: + cam->params.vc_params.vc_control = cmd.buffer.block_data[0]; + break; + case CPIA2_CMD_GET_USER_MODE: + cam->params.vp_params.video_mode = cmd.buffer.block_data[0]; + break; + case CPIA2_CMD_GET_USER_EFFECTS: + cam->params.vp_params.user_effects = cmd.buffer.block_data[0]; + break; + default: + break; + } + return retval; +} + +/****************************************************************************** + * + * cpia2_send_command + * + *****************************************************************************/ + +#define DIR(cmd) ((cmd->direction == TRANSFER_WRITE) ? "Write" : "Read") +#define BINDEX(cmd) (cmd->req_mode & 0x03) + +int cpia2_send_command(struct camera_data *cam, struct cpia2_command *cmd) +{ + u8 count; + u8 start; + u8 *buffer; + int retval; + + switch (cmd->req_mode & 0x0c) { + case CAMERAACCESS_TYPE_RANDOM: + count = cmd->reg_count * sizeof(struct cpia2_register); + start = 0; + buffer = (u8 *) & cmd->buffer; + if (debugs_on & DEBUG_REG) + DBG("%s Random: Register block %s\n", DIR(cmd), + block_name[BINDEX(cmd)]); + break; + case CAMERAACCESS_TYPE_BLOCK: + count = cmd->reg_count; + start = cmd->start; + buffer = cmd->buffer.block_data; + if (debugs_on & DEBUG_REG) + DBG("%s Block: Register block %s\n", DIR(cmd), + block_name[BINDEX(cmd)]); + break; + case CAMERAACCESS_TYPE_MASK: + count = cmd->reg_count * sizeof(struct cpia2_reg_mask); + start = 0; + buffer = (u8 *) & cmd->buffer; + if (debugs_on & DEBUG_REG) + DBG("%s Mask: Register block %s\n", DIR(cmd), + block_name[BINDEX(cmd)]); + break; + case CAMERAACCESS_TYPE_REPEAT: /* For patch blocks only */ + count = cmd->reg_count; + start = cmd->start; + buffer = cmd->buffer.block_data; + if (debugs_on & DEBUG_REG) + DBG("%s Repeat: Register block %s\n", DIR(cmd), + block_name[BINDEX(cmd)]); + break; + default: + LOG("%s: invalid request mode\n",__func__); + return -EINVAL; + } + + retval = cpia2_usb_transfer_cmd(cam, + buffer, + cmd->req_mode, + start, count, cmd->direction); +#ifdef _CPIA2_DEBUG_ + if (debugs_on & DEBUG_REG) { + int i; + for (i = 0; i < cmd->reg_count; i++) { + if((cmd->req_mode & 0x0c) == CAMERAACCESS_TYPE_BLOCK) + KINFO("%s Block: [0x%02X] = 0x%02X\n", + DIR(cmd), start + i, buffer[i]); + if((cmd->req_mode & 0x0c) == CAMERAACCESS_TYPE_RANDOM) + KINFO("%s Random: [0x%02X] = 0x%02X\n", + DIR(cmd), cmd->buffer.registers[i].index, + cmd->buffer.registers[i].value); + } + } +#endif + + return retval; +}; + +/************* + * Functions to implement camera functionality + *************/ +/****************************************************************************** + * + * cpia2_get_version_info + * + *****************************************************************************/ +static void cpia2_get_version_info(struct camera_data *cam) +{ + cpia2_do_command(cam, CPIA2_CMD_GET_VERSION, TRANSFER_READ, 0); + cpia2_do_command(cam, CPIA2_CMD_GET_PNP_ID, TRANSFER_READ, 0); + cpia2_do_command(cam, CPIA2_CMD_GET_ASIC_TYPE, TRANSFER_READ, 0); + cpia2_do_command(cam, CPIA2_CMD_GET_SENSOR, TRANSFER_READ, 0); + cpia2_do_command(cam, CPIA2_CMD_GET_VP_DEVICE, TRANSFER_READ, 0); +} + +/****************************************************************************** + * + * cpia2_reset_camera + * + * Called at least during the open process, sets up initial params. + *****************************************************************************/ +int cpia2_reset_camera(struct camera_data *cam) +{ + u8 tmp_reg; + int retval = 0; + int target_kb; + int i; + struct cpia2_command cmd; + + /*** + * VC setup + ***/ + retval = configure_sensor(cam, + cam->params.roi.width, + cam->params.roi.height); + if (retval < 0) { + ERR("Couldn't configure sensor, error=%d\n", retval); + return retval; + } + + /* Clear FIFO and route/enable stream block */ + cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC; + cmd.direction = TRANSFER_WRITE; + cmd.reg_count = 2; + cmd.buffer.registers[0].index = CPIA2_VC_ST_CTRL; + cmd.buffer.registers[0].value = CPIA2_VC_ST_CTRL_SRC_VC | + CPIA2_VC_ST_CTRL_DST_USB | CPIA2_VC_ST_CTRL_EOF_DETECT; + cmd.buffer.registers[1].index = CPIA2_VC_ST_CTRL; + cmd.buffer.registers[1].value = CPIA2_VC_ST_CTRL_SRC_VC | + CPIA2_VC_ST_CTRL_DST_USB | + CPIA2_VC_ST_CTRL_EOF_DETECT | CPIA2_VC_ST_CTRL_FIFO_ENABLE; + + cpia2_send_command(cam, &cmd); + + cpia2_set_high_power(cam); + + if (cam->params.pnp_id.device_type == DEVICE_STV_672) { + /* Enable button notification */ + cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_SYSTEM; + cmd.buffer.registers[0].index = CPIA2_SYSTEM_INT_PACKET_CTRL; + cmd.buffer.registers[0].value = + CPIA2_SYSTEM_INT_PACKET_CTRL_ENABLE_SW_XX; + cmd.reg_count = 1; + cpia2_send_command(cam, &cmd); + } + + schedule_timeout_interruptible(msecs_to_jiffies(100)); + + if (cam->params.pnp_id.device_type == DEVICE_STV_672) + retval = apply_vp_patch(cam); + + /* wait for vp to go to sleep */ + schedule_timeout_interruptible(msecs_to_jiffies(100)); + + /*** + * If this is a 676, apply VP5 fixes before we start streaming + ***/ + if (cam->params.pnp_id.device_type == DEVICE_STV_676) { + cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VP; + + /* The following writes improve the picture */ + cmd.buffer.registers[0].index = CPIA2_VP5_MYBLACK_LEVEL; + cmd.buffer.registers[0].value = 0; /* reduce from the default + * rec 601 pedestal of 16 */ + cmd.buffer.registers[1].index = CPIA2_VP5_MCYRANGE; + cmd.buffer.registers[1].value = 0x92; /* increase from 100% to + * (256/256 - 31) to fill + * available range */ + cmd.buffer.registers[2].index = CPIA2_VP5_MYCEILING; + cmd.buffer.registers[2].value = 0xFF; /* Increase from the + * default rec 601 ceiling + * of 240 */ + cmd.buffer.registers[3].index = CPIA2_VP5_MCUVSATURATION; + cmd.buffer.registers[3].value = 0xFF; /* Increase from the rec + * 601 100% level (128) + * to 145-192 */ + cmd.buffer.registers[4].index = CPIA2_VP5_ANTIFLKRSETUP; + cmd.buffer.registers[4].value = 0x80; /* Inhibit the + * anti-flicker */ + + /* The following 4 writes are a fix to allow QVGA to work at 30 fps */ + cmd.buffer.registers[5].index = CPIA2_VP_RAM_ADDR_H; + cmd.buffer.registers[5].value = 0x01; + cmd.buffer.registers[6].index = CPIA2_VP_RAM_ADDR_L; + cmd.buffer.registers[6].value = 0xE3; + cmd.buffer.registers[7].index = CPIA2_VP_RAM_DATA; + cmd.buffer.registers[7].value = 0x02; + cmd.buffer.registers[8].index = CPIA2_VP_RAM_DATA; + cmd.buffer.registers[8].value = 0xFC; + + cmd.direction = TRANSFER_WRITE; + cmd.reg_count = 9; + + cpia2_send_command(cam, &cmd); + } + + /* Activate all settings and start the data stream */ + /* Set user mode */ + set_default_user_mode(cam); + + /* Give VP time to wake up */ + schedule_timeout_interruptible(msecs_to_jiffies(100)); + + set_all_properties(cam); + + cpia2_do_command(cam, CPIA2_CMD_GET_USER_MODE, TRANSFER_READ, 0); + DBG("After SetAllProperties(cam), user mode is 0x%0X\n", + cam->params.vp_params.video_mode); + + /*** + * Set audio regulator off. This and the code to set the compresison + * state are too complex to form a CPIA2_CMD_, and seem to be somewhat + * intertwined. This stuff came straight from the windows driver. + ***/ + /* Turn AutoExposure off in VP and enable the serial bridge to the sensor */ + cpia2_do_command(cam, CPIA2_CMD_GET_VP_SYSTEM_CTRL, TRANSFER_READ, 0); + tmp_reg = cam->params.vp_params.system_ctrl; + cmd.buffer.registers[0].value = tmp_reg & + (tmp_reg & (CPIA2_VP_SYSTEMCTRL_HK_CONTROL ^ 0xFF)); + + cpia2_do_command(cam, CPIA2_CMD_GET_DEVICE_CONFIG, TRANSFER_READ, 0); + cmd.buffer.registers[1].value = cam->params.vp_params.device_config | + CPIA2_VP_DEVICE_CONFIG_SERIAL_BRIDGE; + cmd.buffer.registers[0].index = CPIA2_VP_SYSTEMCTRL; + cmd.buffer.registers[1].index = CPIA2_VP_DEVICE_CONFIG; + cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VP; + cmd.reg_count = 2; + cmd.direction = TRANSFER_WRITE; + cmd.start = 0; + cpia2_send_command(cam, &cmd); + + /* Set the correct I2C address in the CPiA-2 system register */ + cpia2_do_command(cam, + CPIA2_CMD_SET_SERIAL_ADDR, + TRANSFER_WRITE, + CPIA2_SYSTEM_VP_SERIAL_ADDR_SENSOR); + + /* Now have sensor access - set bit to turn the audio regulator off */ + cpia2_do_command(cam, + CPIA2_CMD_SET_SENSOR_CR1, + TRANSFER_WRITE, CPIA2_SENSOR_CR1_DOWN_AUDIO_REGULATOR); + + /* Set the correct I2C address in the CPiA-2 system register */ + if (cam->params.pnp_id.device_type == DEVICE_STV_672) + cpia2_do_command(cam, + CPIA2_CMD_SET_SERIAL_ADDR, + TRANSFER_WRITE, + CPIA2_SYSTEM_VP_SERIAL_ADDR_VP); // 0x88 + else + cpia2_do_command(cam, + CPIA2_CMD_SET_SERIAL_ADDR, + TRANSFER_WRITE, + CPIA2_SYSTEM_VP_SERIAL_ADDR_676_VP); // 0x8a + + /* increase signal drive strength */ + if (cam->params.pnp_id.device_type == DEVICE_STV_676) + cpia2_do_command(cam, + CPIA2_CMD_SET_VP_EXP_MODES, + TRANSFER_WRITE, + CPIA2_VP_EXPOSURE_MODES_COMPILE_EXP); + + /* Start autoexposure */ + cpia2_do_command(cam, CPIA2_CMD_GET_DEVICE_CONFIG, TRANSFER_READ, 0); + cmd.buffer.registers[0].value = cam->params.vp_params.device_config & + (CPIA2_VP_DEVICE_CONFIG_SERIAL_BRIDGE ^ 0xFF); + + cpia2_do_command(cam, CPIA2_CMD_GET_VP_SYSTEM_CTRL, TRANSFER_READ, 0); + cmd.buffer.registers[1].value = + cam->params.vp_params.system_ctrl | CPIA2_VP_SYSTEMCTRL_HK_CONTROL; + + cmd.buffer.registers[0].index = CPIA2_VP_DEVICE_CONFIG; + cmd.buffer.registers[1].index = CPIA2_VP_SYSTEMCTRL; + cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VP; + cmd.reg_count = 2; + cmd.direction = TRANSFER_WRITE; + + cpia2_send_command(cam, &cmd); + + /* Set compression state */ + cpia2_do_command(cam, CPIA2_CMD_GET_VC_CONTROL, TRANSFER_READ, 0); + if (cam->params.compression.inhibit_htables) { + tmp_reg = cam->params.vc_params.vc_control | + CPIA2_VC_VC_CTRL_INHIBIT_H_TABLES; + } else { + tmp_reg = cam->params.vc_params.vc_control & + ~CPIA2_VC_VC_CTRL_INHIBIT_H_TABLES; + } + cpia2_do_command(cam, CPIA2_CMD_SET_VC_CONTROL, TRANSFER_WRITE,tmp_reg); + + /* Set target size (kb) on vc + This is a heuristic based on the quality parameter and the raw + framesize in kB divided by 16 (the compression factor when the + quality is 100%) */ + target_kb = (cam->width * cam->height * 2 / 16384) * + cam->params.vc_params.quality / 100; + if (target_kb < 1) + target_kb = 1; + cpia2_do_command(cam, CPIA2_CMD_SET_TARGET_KB, + TRANSFER_WRITE, target_kb); + + /* Wiggle VC Reset */ + /*** + * First read and wait a bit. + ***/ + for (i = 0; i < 50; i++) { + cpia2_do_command(cam, CPIA2_CMD_GET_PW_CONTROL, + TRANSFER_READ, 0); + } + + tmp_reg = cam->params.vc_params.pw_control; + tmp_reg &= ~CPIA2_VC_PW_CTRL_VC_RESET_N; + + cpia2_do_command(cam, CPIA2_CMD_SET_PW_CONTROL, TRANSFER_WRITE,tmp_reg); + + tmp_reg |= CPIA2_VC_PW_CTRL_VC_RESET_N; + cpia2_do_command(cam, CPIA2_CMD_SET_PW_CONTROL, TRANSFER_WRITE,tmp_reg); + + cpia2_do_command(cam, CPIA2_CMD_SET_DEF_JPEG_OPT, TRANSFER_WRITE, 0); + + cpia2_do_command(cam, CPIA2_CMD_GET_USER_MODE, TRANSFER_READ, 0); + DBG("After VC RESET, user mode is 0x%0X\n", + cam->params.vp_params.video_mode); + + return retval; +} + +/****************************************************************************** + * + * cpia2_set_high_power + * + *****************************************************************************/ +static int cpia2_set_high_power(struct camera_data *cam) +{ + int i; + for (i = 0; i <= 50; i++) { + /* Read system status */ + cpia2_do_command(cam,CPIA2_CMD_GET_SYSTEM_CTRL,TRANSFER_READ,0); + + /* If there is an error, clear it */ + if(cam->params.camera_state.system_ctrl & + CPIA2_SYSTEM_CONTROL_V2W_ERR) + cpia2_do_command(cam, CPIA2_CMD_CLEAR_V2W_ERR, + TRANSFER_WRITE, 0); + + /* Try to set high power mode */ + cpia2_do_command(cam, CPIA2_CMD_SET_SYSTEM_CTRL, + TRANSFER_WRITE, 1); + + /* Try to read something in VP to check if everything is awake */ + cpia2_do_command(cam, CPIA2_CMD_GET_VP_SYSTEM_STATE, + TRANSFER_READ, 0); + if (cam->params.vp_params.system_state & + CPIA2_VP_SYSTEMSTATE_HK_ALIVE) { + break; + } else if (i == 50) { + cam->params.camera_state.power_mode = LO_POWER_MODE; + ERR("Camera did not wake up\n"); + return -EIO; + } + } + + DBG("System now in high power state\n"); + cam->params.camera_state.power_mode = HI_POWER_MODE; + return 0; +} + +/****************************************************************************** + * + * cpia2_set_low_power + * + *****************************************************************************/ +int cpia2_set_low_power(struct camera_data *cam) +{ + cam->params.camera_state.power_mode = LO_POWER_MODE; + cpia2_do_command(cam, CPIA2_CMD_SET_SYSTEM_CTRL, TRANSFER_WRITE, 0); + return 0; +} + +/****************************************************************************** + * + * apply_vp_patch + * + *****************************************************************************/ +static int cpia2_send_onebyte_command(struct camera_data *cam, + struct cpia2_command *cmd, + u8 start, u8 datum) +{ + cmd->buffer.block_data[0] = datum; + cmd->start = start; + cmd->reg_count = 1; + return cpia2_send_command(cam, cmd); +} + +static int apply_vp_patch(struct camera_data *cam) +{ + const struct firmware *fw; + const char fw_name[] = FIRMWARE; + int i, ret; + struct cpia2_command cmd; + + ret = request_firmware(&fw, fw_name, &cam->dev->dev); + if (ret) { + printk(KERN_ERR "cpia2: failed to load VP patch \"%s\"\n", + fw_name); + return ret; + } + + cmd.req_mode = CAMERAACCESS_TYPE_REPEAT | CAMERAACCESS_VP; + cmd.direction = TRANSFER_WRITE; + + /* First send the start address... */ + cpia2_send_onebyte_command(cam, &cmd, 0x0A, fw->data[0]); /* hi */ + cpia2_send_onebyte_command(cam, &cmd, 0x0B, fw->data[1]); /* lo */ + + /* ... followed by the data payload */ + for (i = 2; i < fw->size; i += 64) { + cmd.start = 0x0C; /* Data */ + cmd.reg_count = min_t(uint, 64, fw->size - i); + memcpy(cmd.buffer.block_data, &fw->data[i], cmd.reg_count); + cpia2_send_command(cam, &cmd); + } + + /* Next send the start address... */ + cpia2_send_onebyte_command(cam, &cmd, 0x0A, fw->data[0]); /* hi */ + cpia2_send_onebyte_command(cam, &cmd, 0x0B, fw->data[1]); /* lo */ + + /* ... followed by the 'goto' command */ + cpia2_send_onebyte_command(cam, &cmd, 0x0D, 1); + + release_firmware(fw); + return 0; +} + +/****************************************************************************** + * + * set_default_user_mode + * + *****************************************************************************/ +static int set_default_user_mode(struct camera_data *cam) +{ + unsigned char user_mode; + unsigned char frame_rate; + int width = cam->params.roi.width; + int height = cam->params.roi.height; + + switch (cam->params.version.sensor_flags) { + case CPIA2_VP_SENSOR_FLAGS_404: + case CPIA2_VP_SENSOR_FLAGS_407: + case CPIA2_VP_SENSOR_FLAGS_409: + case CPIA2_VP_SENSOR_FLAGS_410: + if ((width > STV_IMAGE_QCIF_COLS) + || (height > STV_IMAGE_QCIF_ROWS)) { + user_mode = CPIA2_VP_USER_MODE_CIF; + } else { + user_mode = CPIA2_VP_USER_MODE_QCIFDS; + } + frame_rate = CPIA2_VP_FRAMERATE_30; + break; + case CPIA2_VP_SENSOR_FLAGS_500: + if ((width > STV_IMAGE_CIF_COLS) + || (height > STV_IMAGE_CIF_ROWS)) { + user_mode = CPIA2_VP_USER_MODE_VGA; + } else { + user_mode = CPIA2_VP_USER_MODE_QVGADS; + } + if (cam->params.pnp_id.device_type == DEVICE_STV_672) + frame_rate = CPIA2_VP_FRAMERATE_15; + else + frame_rate = CPIA2_VP_FRAMERATE_30; + break; + default: + LOG("%s: Invalid sensor flag value 0x%0X\n",__func__, + cam->params.version.sensor_flags); + return -EINVAL; + } + + DBG("Sensor flag = 0x%0x, user mode = 0x%0x, frame rate = 0x%X\n", + cam->params.version.sensor_flags, user_mode, frame_rate); + cpia2_do_command(cam, CPIA2_CMD_SET_USER_MODE, TRANSFER_WRITE, + user_mode); + if(cam->params.vp_params.frame_rate > 0 && + frame_rate > cam->params.vp_params.frame_rate) + frame_rate = cam->params.vp_params.frame_rate; + + cpia2_set_fps(cam, frame_rate); + +// if (cam->params.pnp_id.device_type == DEVICE_STV_676) +// cpia2_do_command(cam, +// CPIA2_CMD_SET_VP_SYSTEM_CTRL, +// TRANSFER_WRITE, +// CPIA2_VP_SYSTEMCTRL_HK_CONTROL | +// CPIA2_VP_SYSTEMCTRL_POWER_CONTROL); + + return 0; +} + +/****************************************************************************** + * + * cpia2_match_video_size + * + * return the best match, where 'best' is as always + * the largest that is not bigger than what is requested. + *****************************************************************************/ +int cpia2_match_video_size(int width, int height) +{ + if (width >= STV_IMAGE_VGA_COLS && height >= STV_IMAGE_VGA_ROWS) + return VIDEOSIZE_VGA; + + if (width >= STV_IMAGE_CIF_COLS && height >= STV_IMAGE_CIF_ROWS) + return VIDEOSIZE_CIF; + + if (width >= STV_IMAGE_QVGA_COLS && height >= STV_IMAGE_QVGA_ROWS) + return VIDEOSIZE_QVGA; + + if (width >= 288 && height >= 216) + return VIDEOSIZE_288_216; + + if (width >= 256 && height >= 192) + return VIDEOSIZE_256_192; + + if (width >= 224 && height >= 168) + return VIDEOSIZE_224_168; + + if (width >= 192 && height >= 144) + return VIDEOSIZE_192_144; + + if (width >= STV_IMAGE_QCIF_COLS && height >= STV_IMAGE_QCIF_ROWS) + return VIDEOSIZE_QCIF; + + return -1; +} + +/****************************************************************************** + * + * SetVideoSize + * + *****************************************************************************/ +static int set_vw_size(struct camera_data *cam, int size) +{ + int retval = 0; + + cam->params.vp_params.video_size = size; + + switch (size) { + case VIDEOSIZE_VGA: + DBG("Setting size to VGA\n"); + cam->params.roi.width = STV_IMAGE_VGA_COLS; + cam->params.roi.height = STV_IMAGE_VGA_ROWS; + cam->width = STV_IMAGE_VGA_COLS; + cam->height = STV_IMAGE_VGA_ROWS; + break; + case VIDEOSIZE_CIF: + DBG("Setting size to CIF\n"); + cam->params.roi.width = STV_IMAGE_CIF_COLS; + cam->params.roi.height = STV_IMAGE_CIF_ROWS; + cam->width = STV_IMAGE_CIF_COLS; + cam->height = STV_IMAGE_CIF_ROWS; + break; + case VIDEOSIZE_QVGA: + DBG("Setting size to QVGA\n"); + cam->params.roi.width = STV_IMAGE_QVGA_COLS; + cam->params.roi.height = STV_IMAGE_QVGA_ROWS; + cam->width = STV_IMAGE_QVGA_COLS; + cam->height = STV_IMAGE_QVGA_ROWS; + break; + case VIDEOSIZE_288_216: + cam->params.roi.width = 288; + cam->params.roi.height = 216; + cam->width = 288; + cam->height = 216; + break; + case VIDEOSIZE_256_192: + cam->width = 256; + cam->height = 192; + cam->params.roi.width = 256; + cam->params.roi.height = 192; + break; + case VIDEOSIZE_224_168: + cam->width = 224; + cam->height = 168; + cam->params.roi.width = 224; + cam->params.roi.height = 168; + break; + case VIDEOSIZE_192_144: + cam->width = 192; + cam->height = 144; + cam->params.roi.width = 192; + cam->params.roi.height = 144; + break; + case VIDEOSIZE_QCIF: + DBG("Setting size to QCIF\n"); + cam->params.roi.width = STV_IMAGE_QCIF_COLS; + cam->params.roi.height = STV_IMAGE_QCIF_ROWS; + cam->width = STV_IMAGE_QCIF_COLS; + cam->height = STV_IMAGE_QCIF_ROWS; + break; + default: + retval = -EINVAL; + } + return retval; +} + +/****************************************************************************** + * + * configure_sensor + * + *****************************************************************************/ +static int configure_sensor(struct camera_data *cam, + int req_width, int req_height) +{ + int retval; + + switch (cam->params.version.sensor_flags) { + case CPIA2_VP_SENSOR_FLAGS_404: + case CPIA2_VP_SENSOR_FLAGS_407: + case CPIA2_VP_SENSOR_FLAGS_409: + case CPIA2_VP_SENSOR_FLAGS_410: + retval = config_sensor_410(cam, req_width, req_height); + break; + case CPIA2_VP_SENSOR_FLAGS_500: + retval = config_sensor_500(cam, req_width, req_height); + break; + default: + return -EINVAL; + } + + return retval; +} + +/****************************************************************************** + * + * config_sensor_410 + * + *****************************************************************************/ +static int config_sensor_410(struct camera_data *cam, + int req_width, int req_height) +{ + struct cpia2_command cmd; + int i = 0; + int image_size; + int image_type; + int width = req_width; + int height = req_height; + + /*** + * Make sure size doesn't exceed CIF. + ***/ + if (width > STV_IMAGE_CIF_COLS) + width = STV_IMAGE_CIF_COLS; + if (height > STV_IMAGE_CIF_ROWS) + height = STV_IMAGE_CIF_ROWS; + + image_size = cpia2_match_video_size(width, height); + + DBG("Config 410: width = %d, height = %d\n", width, height); + DBG("Image size returned is %d\n", image_size); + if (image_size >= 0) { + set_vw_size(cam, image_size); + width = cam->params.roi.width; + height = cam->params.roi.height; + + DBG("After set_vw_size(), width = %d, height = %d\n", + width, height); + if (width <= 176 && height <= 144) { + DBG("image type = VIDEOSIZE_QCIF\n"); + image_type = VIDEOSIZE_QCIF; + } + else if (width <= 320 && height <= 240) { + DBG("image type = VIDEOSIZE_QVGA\n"); + image_type = VIDEOSIZE_QVGA; + } + else { + DBG("image type = VIDEOSIZE_CIF\n"); + image_type = VIDEOSIZE_CIF; + } + } else { + ERR("ConfigSensor410 failed\n"); + return -EINVAL; + } + + cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC; + cmd.direction = TRANSFER_WRITE; + + /* VC Format */ + cmd.buffer.registers[i].index = CPIA2_VC_VC_FORMAT; + if (image_type == VIDEOSIZE_CIF) { + cmd.buffer.registers[i++].value = + (u8) (CPIA2_VC_VC_FORMAT_UFIRST | + CPIA2_VC_VC_FORMAT_SHORTLINE); + } else { + cmd.buffer.registers[i++].value = + (u8) CPIA2_VC_VC_FORMAT_UFIRST; + } + + /* VC Clocks */ + cmd.buffer.registers[i].index = CPIA2_VC_VC_CLOCKS; + if (image_type == VIDEOSIZE_QCIF) { + if (cam->params.pnp_id.device_type == DEVICE_STV_672) { + cmd.buffer.registers[i++].value= + (u8)(CPIA2_VC_VC_672_CLOCKS_CIF_DIV_BY_3 | + CPIA2_VC_VC_672_CLOCKS_SCALING | + CPIA2_VC_VC_CLOCKS_LOGDIV2); + DBG("VC_Clocks (0xc4) should be B\n"); + } + else { + cmd.buffer.registers[i++].value= + (u8)(CPIA2_VC_VC_676_CLOCKS_CIF_DIV_BY_3 | + CPIA2_VC_VC_CLOCKS_LOGDIV2); + } + } else { + if (cam->params.pnp_id.device_type == DEVICE_STV_672) { + cmd.buffer.registers[i++].value = + (u8) (CPIA2_VC_VC_672_CLOCKS_CIF_DIV_BY_3 | + CPIA2_VC_VC_CLOCKS_LOGDIV0); + } + else { + cmd.buffer.registers[i++].value = + (u8) (CPIA2_VC_VC_676_CLOCKS_CIF_DIV_BY_3 | + CPIA2_VC_VC_676_CLOCKS_SCALING | + CPIA2_VC_VC_CLOCKS_LOGDIV0); + } + } + DBG("VC_Clocks (0xc4) = 0x%0X\n", cmd.buffer.registers[i-1].value); + + /* Input reqWidth from VC */ + cmd.buffer.registers[i].index = CPIA2_VC_VC_IHSIZE_LO; + if (image_type == VIDEOSIZE_QCIF) + cmd.buffer.registers[i++].value = + (u8) (STV_IMAGE_QCIF_COLS / 4); + else + cmd.buffer.registers[i++].value = + (u8) (STV_IMAGE_CIF_COLS / 4); + + /* Timings */ + cmd.buffer.registers[i].index = CPIA2_VC_VC_XLIM_HI; + if (image_type == VIDEOSIZE_QCIF) + cmd.buffer.registers[i++].value = (u8) 0; + else + cmd.buffer.registers[i++].value = (u8) 1; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_XLIM_LO; + if (image_type == VIDEOSIZE_QCIF) + cmd.buffer.registers[i++].value = (u8) 208; + else + cmd.buffer.registers[i++].value = (u8) 160; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_YLIM_HI; + if (image_type == VIDEOSIZE_QCIF) + cmd.buffer.registers[i++].value = (u8) 0; + else + cmd.buffer.registers[i++].value = (u8) 1; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_YLIM_LO; + if (image_type == VIDEOSIZE_QCIF) + cmd.buffer.registers[i++].value = (u8) 160; + else + cmd.buffer.registers[i++].value = (u8) 64; + + /* Output Image Size */ + cmd.buffer.registers[i].index = CPIA2_VC_VC_OHSIZE; + cmd.buffer.registers[i++].value = cam->params.roi.width / 4; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_OVSIZE; + cmd.buffer.registers[i++].value = cam->params.roi.height / 4; + + /* Cropping */ + cmd.buffer.registers[i].index = CPIA2_VC_VC_HCROP; + if (image_type == VIDEOSIZE_QCIF) + cmd.buffer.registers[i++].value = + (u8) (((STV_IMAGE_QCIF_COLS / 4) - (width / 4)) / 2); + else + cmd.buffer.registers[i++].value = + (u8) (((STV_IMAGE_CIF_COLS / 4) - (width / 4)) / 2); + + cmd.buffer.registers[i].index = CPIA2_VC_VC_VCROP; + if (image_type == VIDEOSIZE_QCIF) + cmd.buffer.registers[i++].value = + (u8) (((STV_IMAGE_QCIF_ROWS / 4) - (height / 4)) / 2); + else + cmd.buffer.registers[i++].value = + (u8) (((STV_IMAGE_CIF_ROWS / 4) - (height / 4)) / 2); + + /* Scaling registers (defaults) */ + cmd.buffer.registers[i].index = CPIA2_VC_VC_HPHASE; + cmd.buffer.registers[i++].value = (u8) 0; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_VPHASE; + cmd.buffer.registers[i++].value = (u8) 0; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_HISPAN; + cmd.buffer.registers[i++].value = (u8) 31; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_VISPAN; + cmd.buffer.registers[i++].value = (u8) 31; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_HICROP; + cmd.buffer.registers[i++].value = (u8) 0; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_VICROP; + cmd.buffer.registers[i++].value = (u8) 0; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_HFRACT; + cmd.buffer.registers[i++].value = (u8) 0x81; /* = 8/1 = 8 (HIBYTE/LOBYTE) */ + + cmd.buffer.registers[i].index = CPIA2_VC_VC_VFRACT; + cmd.buffer.registers[i++].value = (u8) 0x81; /* = 8/1 = 8 (HIBYTE/LOBYTE) */ + + cmd.reg_count = i; + + cpia2_send_command(cam, &cmd); + + return i; +} + + +/****************************************************************************** + * + * config_sensor_500(cam) + * + *****************************************************************************/ +static int config_sensor_500(struct camera_data *cam, + int req_width, int req_height) +{ + struct cpia2_command cmd; + int i = 0; + int image_size = VIDEOSIZE_CIF; + int image_type = VIDEOSIZE_VGA; + int width = req_width; + int height = req_height; + unsigned int device = cam->params.pnp_id.device_type; + + image_size = cpia2_match_video_size(width, height); + + if (width > STV_IMAGE_CIF_COLS || height > STV_IMAGE_CIF_ROWS) + image_type = VIDEOSIZE_VGA; + else if (width > STV_IMAGE_QVGA_COLS || height > STV_IMAGE_QVGA_ROWS) + image_type = VIDEOSIZE_CIF; + else if (width > STV_IMAGE_QCIF_COLS || height > STV_IMAGE_QCIF_ROWS) + image_type = VIDEOSIZE_QVGA; + else + image_type = VIDEOSIZE_QCIF; + + if (image_size >= 0) { + set_vw_size(cam, image_size); + width = cam->params.roi.width; + height = cam->params.roi.height; + } else { + ERR("ConfigSensor500 failed\n"); + return -EINVAL; + } + + DBG("image_size = %d, width = %d, height = %d, type = %d\n", + image_size, width, height, image_type); + + cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC; + cmd.direction = TRANSFER_WRITE; + i = 0; + + /* VC Format */ + cmd.buffer.registers[i].index = CPIA2_VC_VC_FORMAT; + cmd.buffer.registers[i].value = (u8) CPIA2_VC_VC_FORMAT_UFIRST; + if (image_type == VIDEOSIZE_QCIF) + cmd.buffer.registers[i].value |= (u8) CPIA2_VC_VC_FORMAT_DECIMATING; + i++; + + /* VC Clocks */ + cmd.buffer.registers[i].index = CPIA2_VC_VC_CLOCKS; + if (device == DEVICE_STV_672) { + if (image_type == VIDEOSIZE_VGA) + cmd.buffer.registers[i].value = + (u8)CPIA2_VC_VC_CLOCKS_LOGDIV1; + else + cmd.buffer.registers[i].value = + (u8)(CPIA2_VC_VC_672_CLOCKS_SCALING | + CPIA2_VC_VC_CLOCKS_LOGDIV3); + } else { + if (image_type == VIDEOSIZE_VGA) + cmd.buffer.registers[i].value = + (u8)CPIA2_VC_VC_CLOCKS_LOGDIV0; + else + cmd.buffer.registers[i].value = + (u8)(CPIA2_VC_VC_676_CLOCKS_SCALING | + CPIA2_VC_VC_CLOCKS_LOGDIV2); + } + i++; + + DBG("VC_CLOCKS = 0x%X\n", cmd.buffer.registers[i-1].value); + + /* Input width from VP */ + cmd.buffer.registers[i].index = CPIA2_VC_VC_IHSIZE_LO; + if (image_type == VIDEOSIZE_VGA) + cmd.buffer.registers[i].value = + (u8) (STV_IMAGE_VGA_COLS / 4); + else + cmd.buffer.registers[i].value = + (u8) (STV_IMAGE_QVGA_COLS / 4); + i++; + DBG("Input width = %d\n", cmd.buffer.registers[i-1].value); + + /* Timings */ + cmd.buffer.registers[i].index = CPIA2_VC_VC_XLIM_HI; + if (image_type == VIDEOSIZE_VGA) + cmd.buffer.registers[i++].value = (u8) 2; + else + cmd.buffer.registers[i++].value = (u8) 1; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_XLIM_LO; + if (image_type == VIDEOSIZE_VGA) + cmd.buffer.registers[i++].value = (u8) 250; + else if (image_type == VIDEOSIZE_QVGA) + cmd.buffer.registers[i++].value = (u8) 125; + else + cmd.buffer.registers[i++].value = (u8) 160; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_YLIM_HI; + if (image_type == VIDEOSIZE_VGA) + cmd.buffer.registers[i++].value = (u8) 2; + else + cmd.buffer.registers[i++].value = (u8) 1; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_YLIM_LO; + if (image_type == VIDEOSIZE_VGA) + cmd.buffer.registers[i++].value = (u8) 12; + else if (image_type == VIDEOSIZE_QVGA) + cmd.buffer.registers[i++].value = (u8) 64; + else + cmd.buffer.registers[i++].value = (u8) 6; + + /* Output Image Size */ + cmd.buffer.registers[i].index = CPIA2_VC_VC_OHSIZE; + if (image_type == VIDEOSIZE_QCIF) + cmd.buffer.registers[i++].value = STV_IMAGE_CIF_COLS / 4; + else + cmd.buffer.registers[i++].value = width / 4; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_OVSIZE; + if (image_type == VIDEOSIZE_QCIF) + cmd.buffer.registers[i++].value = STV_IMAGE_CIF_ROWS / 4; + else + cmd.buffer.registers[i++].value = height / 4; + + /* Cropping */ + cmd.buffer.registers[i].index = CPIA2_VC_VC_HCROP; + if (image_type == VIDEOSIZE_VGA) + cmd.buffer.registers[i++].value = + (u8) (((STV_IMAGE_VGA_COLS / 4) - (width / 4)) / 2); + else if (image_type == VIDEOSIZE_QVGA) + cmd.buffer.registers[i++].value = + (u8) (((STV_IMAGE_QVGA_COLS / 4) - (width / 4)) / 2); + else if (image_type == VIDEOSIZE_CIF) + cmd.buffer.registers[i++].value = + (u8) (((STV_IMAGE_CIF_COLS / 4) - (width / 4)) / 2); + else /*if (image_type == VIDEOSIZE_QCIF)*/ + cmd.buffer.registers[i++].value = + (u8) (((STV_IMAGE_QCIF_COLS / 4) - (width / 4)) / 2); + + cmd.buffer.registers[i].index = CPIA2_VC_VC_VCROP; + if (image_type == VIDEOSIZE_VGA) + cmd.buffer.registers[i++].value = + (u8) (((STV_IMAGE_VGA_ROWS / 4) - (height / 4)) / 2); + else if (image_type == VIDEOSIZE_QVGA) + cmd.buffer.registers[i++].value = + (u8) (((STV_IMAGE_QVGA_ROWS / 4) - (height / 4)) / 2); + else if (image_type == VIDEOSIZE_CIF) + cmd.buffer.registers[i++].value = + (u8) (((STV_IMAGE_CIF_ROWS / 4) - (height / 4)) / 2); + else /*if (image_type == VIDEOSIZE_QCIF)*/ + cmd.buffer.registers[i++].value = + (u8) (((STV_IMAGE_QCIF_ROWS / 4) - (height / 4)) / 2); + + /* Scaling registers (defaults) */ + cmd.buffer.registers[i].index = CPIA2_VC_VC_HPHASE; + if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF) + cmd.buffer.registers[i++].value = (u8) 36; + else + cmd.buffer.registers[i++].value = (u8) 0; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_VPHASE; + if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF) + cmd.buffer.registers[i++].value = (u8) 32; + else + cmd.buffer.registers[i++].value = (u8) 0; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_HISPAN; + if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF) + cmd.buffer.registers[i++].value = (u8) 26; + else + cmd.buffer.registers[i++].value = (u8) 31; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_VISPAN; + if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF) + cmd.buffer.registers[i++].value = (u8) 21; + else + cmd.buffer.registers[i++].value = (u8) 31; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_HICROP; + cmd.buffer.registers[i++].value = (u8) 0; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_VICROP; + cmd.buffer.registers[i++].value = (u8) 0; + + cmd.buffer.registers[i].index = CPIA2_VC_VC_HFRACT; + if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF) + cmd.buffer.registers[i++].value = (u8) 0x2B; /* 2/11 */ + else + cmd.buffer.registers[i++].value = (u8) 0x81; /* 8/1 */ + + cmd.buffer.registers[i].index = CPIA2_VC_VC_VFRACT; + if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF) + cmd.buffer.registers[i++].value = (u8) 0x13; /* 1/3 */ + else + cmd.buffer.registers[i++].value = (u8) 0x81; /* 8/1 */ + + cmd.reg_count = i; + + cpia2_send_command(cam, &cmd); + + return i; +} + + +/****************************************************************************** + * + * setallproperties + * + * This sets all user changeable properties to the values in cam->params. + *****************************************************************************/ +static int set_all_properties(struct camera_data *cam) +{ + /** + * Don't set target_kb here, it will be set later. + * framerate and user_mode were already set (set_default_user_mode). + **/ + + cpia2_usb_change_streaming_alternate(cam, + cam->params.camera_state.stream_mode); + + cpia2_do_command(cam, + CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION, + TRANSFER_WRITE, cam->params.vp_params.gpio_direction); + cpia2_do_command(cam, CPIA2_CMD_SET_VC_MP_GPIO_DATA, TRANSFER_WRITE, + cam->params.vp_params.gpio_data); + + v4l2_ctrl_handler_setup(&cam->hdl); + + wake_system(cam); + + set_lowlight_boost(cam); + + return 0; +} + +/****************************************************************************** + * + * cpia2_save_camera_state + * + *****************************************************************************/ +void cpia2_save_camera_state(struct camera_data *cam) +{ + cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, TRANSFER_READ, 0); + cpia2_do_command(cam, CPIA2_CMD_GET_VC_MP_GPIO_DIRECTION, TRANSFER_READ, + 0); + cpia2_do_command(cam, CPIA2_CMD_GET_VC_MP_GPIO_DATA, TRANSFER_READ, 0); + /* Don't get framerate or target_kb. Trust the values we already have */ +} + + +/****************************************************************************** + * + * cpia2_set_flicker_mode + * + *****************************************************************************/ +int cpia2_set_flicker_mode(struct camera_data *cam, int mode) +{ + unsigned char cam_reg; + int err = 0; + + if(cam->params.pnp_id.device_type != DEVICE_STV_672) + return -EINVAL; + + /* Set the appropriate bits in FLICKER_MODES, preserving the rest */ + if((err = cpia2_do_command(cam, CPIA2_CMD_GET_FLICKER_MODES, + TRANSFER_READ, 0))) + return err; + cam_reg = cam->params.flicker_control.cam_register; + + switch(mode) { + case NEVER_FLICKER: + cam_reg |= CPIA2_VP_FLICKER_MODES_NEVER_FLICKER; + cam_reg &= ~CPIA2_VP_FLICKER_MODES_50HZ; + break; + case FLICKER_60: + cam_reg &= ~CPIA2_VP_FLICKER_MODES_NEVER_FLICKER; + cam_reg &= ~CPIA2_VP_FLICKER_MODES_50HZ; + break; + case FLICKER_50: + cam_reg &= ~CPIA2_VP_FLICKER_MODES_NEVER_FLICKER; + cam_reg |= CPIA2_VP_FLICKER_MODES_50HZ; + break; + default: + return -EINVAL; + } + + if((err = cpia2_do_command(cam, CPIA2_CMD_SET_FLICKER_MODES, + TRANSFER_WRITE, cam_reg))) + return err; + + /* Set the appropriate bits in EXP_MODES, preserving the rest */ + if((err = cpia2_do_command(cam, CPIA2_CMD_GET_VP_EXP_MODES, + TRANSFER_READ, 0))) + return err; + cam_reg = cam->params.vp_params.exposure_modes; + + if (mode == NEVER_FLICKER) { + cam_reg |= CPIA2_VP_EXPOSURE_MODES_INHIBIT_FLICKER; + } else { + cam_reg &= ~CPIA2_VP_EXPOSURE_MODES_INHIBIT_FLICKER; + } + + if((err = cpia2_do_command(cam, CPIA2_CMD_SET_VP_EXP_MODES, + TRANSFER_WRITE, cam_reg))) + return err; + + if((err = cpia2_do_command(cam, CPIA2_CMD_REHASH_VP4, + TRANSFER_WRITE, 1))) + return err; + + switch(mode) { + case NEVER_FLICKER: + case FLICKER_60: + case FLICKER_50: + cam->params.flicker_control.flicker_mode_req = mode; + break; + default: + err = -EINVAL; + } + + return err; +} + +/****************************************************************************** + * + * cpia2_set_property_flip + * + *****************************************************************************/ +void cpia2_set_property_flip(struct camera_data *cam, int prop_val) +{ + unsigned char cam_reg; + + cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, TRANSFER_READ, 0); + cam_reg = cam->params.vp_params.user_effects; + + if (prop_val) + { + cam_reg |= CPIA2_VP_USER_EFFECTS_FLIP; + } + else + { + cam_reg &= ~CPIA2_VP_USER_EFFECTS_FLIP; + } + cam->params.vp_params.user_effects = cam_reg; + cpia2_do_command(cam, CPIA2_CMD_SET_USER_EFFECTS, TRANSFER_WRITE, + cam_reg); +} + +/****************************************************************************** + * + * cpia2_set_property_mirror + * + *****************************************************************************/ +void cpia2_set_property_mirror(struct camera_data *cam, int prop_val) +{ + unsigned char cam_reg; + + cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, TRANSFER_READ, 0); + cam_reg = cam->params.vp_params.user_effects; + + if (prop_val) + { + cam_reg |= CPIA2_VP_USER_EFFECTS_MIRROR; + } + else + { + cam_reg &= ~CPIA2_VP_USER_EFFECTS_MIRROR; + } + cam->params.vp_params.user_effects = cam_reg; + cpia2_do_command(cam, CPIA2_CMD_SET_USER_EFFECTS, TRANSFER_WRITE, + cam_reg); +} + +/****************************************************************************** + * + * cpia2_set_gpio + * + *****************************************************************************/ +int cpia2_set_gpio(struct camera_data *cam, unsigned char setting) +{ + int ret; + + /* Set the microport direction (register 0x90, should be defined + * already) to 1 (user output), and set the microport data (0x91) to + * the value in the ioctl argument. + */ + + ret = cpia2_do_command(cam, + CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION, + CPIA2_VC_MP_DIR_OUTPUT, + 255); + if (ret < 0) + return ret; + cam->params.vp_params.gpio_direction = 255; + + ret = cpia2_do_command(cam, + CPIA2_CMD_SET_VC_MP_GPIO_DATA, + CPIA2_VC_MP_DIR_OUTPUT, + setting); + if (ret < 0) + return ret; + cam->params.vp_params.gpio_data = setting; + + return 0; +} + +/****************************************************************************** + * + * cpia2_set_fps + * + *****************************************************************************/ +int cpia2_set_fps(struct camera_data *cam, int framerate) +{ + int retval; + + switch(framerate) { + case CPIA2_VP_FRAMERATE_30: + case CPIA2_VP_FRAMERATE_25: + if(cam->params.pnp_id.device_type == DEVICE_STV_672 && + cam->params.version.sensor_flags == + CPIA2_VP_SENSOR_FLAGS_500) { + return -EINVAL; + } + /* Fall through */ + case CPIA2_VP_FRAMERATE_15: + case CPIA2_VP_FRAMERATE_12_5: + case CPIA2_VP_FRAMERATE_7_5: + case CPIA2_VP_FRAMERATE_6_25: + break; + default: + return -EINVAL; + } + + if (cam->params.pnp_id.device_type == DEVICE_STV_672 && + framerate == CPIA2_VP_FRAMERATE_15) + framerate = 0; /* Work around bug in VP4 */ + + retval = cpia2_do_command(cam, + CPIA2_CMD_FRAMERATE_REQ, + TRANSFER_WRITE, + framerate); + + if(retval == 0) + cam->params.vp_params.frame_rate = framerate; + + return retval; +} + +/****************************************************************************** + * + * cpia2_set_brightness + * + *****************************************************************************/ +void cpia2_set_brightness(struct camera_data *cam, unsigned char value) +{ + /*** + * Don't let the register be set to zero - bug in VP4 - flash of full + * brightness + ***/ + if (cam->params.pnp_id.device_type == DEVICE_STV_672 && value == 0) + value++; + DBG("Setting brightness to %d (0x%0x)\n", value, value); + cpia2_do_command(cam, CPIA2_CMD_SET_VP_BRIGHTNESS, TRANSFER_WRITE, value); +} + +/****************************************************************************** + * + * cpia2_set_contrast + * + *****************************************************************************/ +void cpia2_set_contrast(struct camera_data *cam, unsigned char value) +{ + DBG("Setting contrast to %d (0x%0x)\n", value, value); + cpia2_do_command(cam, CPIA2_CMD_SET_CONTRAST, TRANSFER_WRITE, value); +} + +/****************************************************************************** + * + * cpia2_set_saturation + * + *****************************************************************************/ +void cpia2_set_saturation(struct camera_data *cam, unsigned char value) +{ + DBG("Setting saturation to %d (0x%0x)\n", value, value); + cpia2_do_command(cam,CPIA2_CMD_SET_VP_SATURATION, TRANSFER_WRITE,value); +} + +/****************************************************************************** + * + * wake_system + * + *****************************************************************************/ +static void wake_system(struct camera_data *cam) +{ + cpia2_do_command(cam, CPIA2_CMD_SET_WAKEUP, TRANSFER_WRITE, 0); +} + +/****************************************************************************** + * + * set_lowlight_boost + * + * Valid for STV500 sensor only + *****************************************************************************/ +static void set_lowlight_boost(struct camera_data *cam) +{ + struct cpia2_command cmd; + + if (cam->params.pnp_id.device_type != DEVICE_STV_672 || + cam->params.version.sensor_flags != CPIA2_VP_SENSOR_FLAGS_500) + return; + + cmd.direction = TRANSFER_WRITE; + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.reg_count = 3; + cmd.start = CPIA2_VP_RAM_ADDR_H; + + cmd.buffer.block_data[0] = 0; /* High byte of address to write to */ + cmd.buffer.block_data[1] = 0x59; /* Low byte of address to write to */ + cmd.buffer.block_data[2] = 0; /* High byte of data to write */ + + cpia2_send_command(cam, &cmd); + + if (cam->params.vp_params.lowlight_boost) { + cmd.buffer.block_data[0] = 0x02; /* Low byte data to write */ + } else { + cmd.buffer.block_data[0] = 0x06; + } + cmd.start = CPIA2_VP_RAM_DATA; + cmd.reg_count = 1; + cpia2_send_command(cam, &cmd); + + /* Rehash the VP4 values */ + cpia2_do_command(cam, CPIA2_CMD_REHASH_VP4, TRANSFER_WRITE, 1); +} + +/****************************************************************************** + * + * cpia2_set_format + * + * Assumes that new size is already set in param struct. + *****************************************************************************/ +void cpia2_set_format(struct camera_data *cam) +{ + cam->flush = true; + + cpia2_usb_stream_pause(cam); + + /* reset camera to new size */ + cpia2_set_low_power(cam); + cpia2_reset_camera(cam); + cam->flush = false; + + cpia2_dbg_dump_registers(cam); + + cpia2_usb_stream_resume(cam); +} + +/****************************************************************************** + * + * cpia2_dbg_dump_registers + * + *****************************************************************************/ +void cpia2_dbg_dump_registers(struct camera_data *cam) +{ +#ifdef _CPIA2_DEBUG_ + struct cpia2_command cmd; + + if (!(debugs_on & DEBUG_DUMP_REGS)) + return; + + cmd.direction = TRANSFER_READ; + + /* Start with bank 0 (SYSTEM) */ + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM; + cmd.reg_count = 3; + cmd.start = 0; + cpia2_send_command(cam, &cmd); + printk(KERN_DEBUG "System Device Hi = 0x%X\n", + cmd.buffer.block_data[0]); + printk(KERN_DEBUG "System Device Lo = 0x%X\n", + cmd.buffer.block_data[1]); + printk(KERN_DEBUG "System_system control = 0x%X\n", + cmd.buffer.block_data[2]); + + /* Bank 1 (VC) */ + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC; + cmd.reg_count = 4; + cmd.start = 0x80; + cpia2_send_command(cam, &cmd); + printk(KERN_DEBUG "ASIC_ID = 0x%X\n", + cmd.buffer.block_data[0]); + printk(KERN_DEBUG "ASIC_REV = 0x%X\n", + cmd.buffer.block_data[1]); + printk(KERN_DEBUG "PW_CONTRL = 0x%X\n", + cmd.buffer.block_data[2]); + printk(KERN_DEBUG "WAKEUP = 0x%X\n", + cmd.buffer.block_data[3]); + + cmd.start = 0xA0; /* ST_CTRL */ + cmd.reg_count = 1; + cpia2_send_command(cam, &cmd); + printk(KERN_DEBUG "Stream ctrl = 0x%X\n", + cmd.buffer.block_data[0]); + + cmd.start = 0xA4; /* Stream status */ + cpia2_send_command(cam, &cmd); + printk(KERN_DEBUG "Stream status = 0x%X\n", + cmd.buffer.block_data[0]); + + cmd.start = 0xA8; /* USB status */ + cmd.reg_count = 3; + cpia2_send_command(cam, &cmd); + printk(KERN_DEBUG "USB_CTRL = 0x%X\n", + cmd.buffer.block_data[0]); + printk(KERN_DEBUG "USB_STRM = 0x%X\n", + cmd.buffer.block_data[1]); + printk(KERN_DEBUG "USB_STATUS = 0x%X\n", + cmd.buffer.block_data[2]); + + cmd.start = 0xAF; /* USB settings */ + cmd.reg_count = 1; + cpia2_send_command(cam, &cmd); + printk(KERN_DEBUG "USB settings = 0x%X\n", + cmd.buffer.block_data[0]); + + cmd.start = 0xC0; /* VC stuff */ + cmd.reg_count = 26; + cpia2_send_command(cam, &cmd); + printk(KERN_DEBUG "VC Control = 0x%0X\n", + cmd.buffer.block_data[0]); + printk(KERN_DEBUG "VC Format = 0x%0X\n", + cmd.buffer.block_data[3]); + printk(KERN_DEBUG "VC Clocks = 0x%0X\n", + cmd.buffer.block_data[4]); + printk(KERN_DEBUG "VC IHSize = 0x%0X\n", + cmd.buffer.block_data[5]); + printk(KERN_DEBUG "VC Xlim Hi = 0x%0X\n", + cmd.buffer.block_data[6]); + printk(KERN_DEBUG "VC XLim Lo = 0x%0X\n", + cmd.buffer.block_data[7]); + printk(KERN_DEBUG "VC YLim Hi = 0x%0X\n", + cmd.buffer.block_data[8]); + printk(KERN_DEBUG "VC YLim Lo = 0x%0X\n", + cmd.buffer.block_data[9]); + printk(KERN_DEBUG "VC OHSize = 0x%0X\n", + cmd.buffer.block_data[10]); + printk(KERN_DEBUG "VC OVSize = 0x%0X\n", + cmd.buffer.block_data[11]); + printk(KERN_DEBUG "VC HCrop = 0x%0X\n", + cmd.buffer.block_data[12]); + printk(KERN_DEBUG "VC VCrop = 0x%0X\n", + cmd.buffer.block_data[13]); + printk(KERN_DEBUG "VC HPhase = 0x%0X\n", + cmd.buffer.block_data[14]); + printk(KERN_DEBUG "VC VPhase = 0x%0X\n", + cmd.buffer.block_data[15]); + printk(KERN_DEBUG "VC HIspan = 0x%0X\n", + cmd.buffer.block_data[16]); + printk(KERN_DEBUG "VC VIspan = 0x%0X\n", + cmd.buffer.block_data[17]); + printk(KERN_DEBUG "VC HiCrop = 0x%0X\n", + cmd.buffer.block_data[18]); + printk(KERN_DEBUG "VC ViCrop = 0x%0X\n", + cmd.buffer.block_data[19]); + printk(KERN_DEBUG "VC HiFract = 0x%0X\n", + cmd.buffer.block_data[20]); + printk(KERN_DEBUG "VC ViFract = 0x%0X\n", + cmd.buffer.block_data[21]); + printk(KERN_DEBUG "VC JPeg Opt = 0x%0X\n", + cmd.buffer.block_data[22]); + printk(KERN_DEBUG "VC Creep Per = 0x%0X\n", + cmd.buffer.block_data[23]); + printk(KERN_DEBUG "VC User Sq. = 0x%0X\n", + cmd.buffer.block_data[24]); + printk(KERN_DEBUG "VC Target KB = 0x%0X\n", + cmd.buffer.block_data[25]); + + /*** VP ***/ + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP; + cmd.reg_count = 14; + cmd.start = 0; + cpia2_send_command(cam, &cmd); + + printk(KERN_DEBUG "VP Dev Hi = 0x%0X\n", + cmd.buffer.block_data[0]); + printk(KERN_DEBUG "VP Dev Lo = 0x%0X\n", + cmd.buffer.block_data[1]); + printk(KERN_DEBUG "VP Sys State = 0x%0X\n", + cmd.buffer.block_data[2]); + printk(KERN_DEBUG "VP Sys Ctrl = 0x%0X\n", + cmd.buffer.block_data[3]); + printk(KERN_DEBUG "VP Sensor flg = 0x%0X\n", + cmd.buffer.block_data[5]); + printk(KERN_DEBUG "VP Sensor Rev = 0x%0X\n", + cmd.buffer.block_data[6]); + printk(KERN_DEBUG "VP Dev Config = 0x%0X\n", + cmd.buffer.block_data[7]); + printk(KERN_DEBUG "VP GPIO_DIR = 0x%0X\n", + cmd.buffer.block_data[8]); + printk(KERN_DEBUG "VP GPIO_DATA = 0x%0X\n", + cmd.buffer.block_data[9]); + printk(KERN_DEBUG "VP Ram ADDR H = 0x%0X\n", + cmd.buffer.block_data[10]); + printk(KERN_DEBUG "VP Ram ADDR L = 0x%0X\n", + cmd.buffer.block_data[11]); + printk(KERN_DEBUG "VP RAM Data = 0x%0X\n", + cmd.buffer.block_data[12]); + printk(KERN_DEBUG "Do Call = 0x%0X\n", + cmd.buffer.block_data[13]); + + if (cam->params.pnp_id.device_type == DEVICE_STV_672) { + cmd.reg_count = 9; + cmd.start = 0x0E; + cpia2_send_command(cam, &cmd); + printk(KERN_DEBUG "VP Clock Ctrl = 0x%0X\n", + cmd.buffer.block_data[0]); + printk(KERN_DEBUG "VP Patch Rev = 0x%0X\n", + cmd.buffer.block_data[1]); + printk(KERN_DEBUG "VP Vid Mode = 0x%0X\n", + cmd.buffer.block_data[2]); + printk(KERN_DEBUG "VP Framerate = 0x%0X\n", + cmd.buffer.block_data[3]); + printk(KERN_DEBUG "VP UserEffect = 0x%0X\n", + cmd.buffer.block_data[4]); + printk(KERN_DEBUG "VP White Bal = 0x%0X\n", + cmd.buffer.block_data[5]); + printk(KERN_DEBUG "VP WB thresh = 0x%0X\n", + cmd.buffer.block_data[6]); + printk(KERN_DEBUG "VP Exp Modes = 0x%0X\n", + cmd.buffer.block_data[7]); + printk(KERN_DEBUG "VP Exp Target = 0x%0X\n", + cmd.buffer.block_data[8]); + + cmd.reg_count = 1; + cmd.start = 0x1B; + cpia2_send_command(cam, &cmd); + printk(KERN_DEBUG "VP FlickerMds = 0x%0X\n", + cmd.buffer.block_data[0]); + } else { + cmd.reg_count = 8 ; + cmd.start = 0x0E; + cpia2_send_command(cam, &cmd); + printk(KERN_DEBUG "VP Clock Ctrl = 0x%0X\n", + cmd.buffer.block_data[0]); + printk(KERN_DEBUG "VP Patch Rev = 0x%0X\n", + cmd.buffer.block_data[1]); + printk(KERN_DEBUG "VP Vid Mode = 0x%0X\n", + cmd.buffer.block_data[5]); + printk(KERN_DEBUG "VP Framerate = 0x%0X\n", + cmd.buffer.block_data[6]); + printk(KERN_DEBUG "VP UserEffect = 0x%0X\n", + cmd.buffer.block_data[7]); + + cmd.reg_count = 1; + cmd.start = CPIA2_VP5_EXPOSURE_TARGET; + cpia2_send_command(cam, &cmd); + printk(KERN_DEBUG "VP5 Exp Target= 0x%0X\n", + cmd.buffer.block_data[0]); + + cmd.reg_count = 4; + cmd.start = 0x3A; + cpia2_send_command(cam, &cmd); + printk(KERN_DEBUG "VP5 MY Black = 0x%0X\n", + cmd.buffer.block_data[0]); + printk(KERN_DEBUG "VP5 MCY Range = 0x%0X\n", + cmd.buffer.block_data[1]); + printk(KERN_DEBUG "VP5 MYCEILING = 0x%0X\n", + cmd.buffer.block_data[2]); + printk(KERN_DEBUG "VP5 MCUV Sat = 0x%0X\n", + cmd.buffer.block_data[3]); + } +#endif +} + +/****************************************************************************** + * + * reset_camera_struct + * + * Sets all values to the defaults + *****************************************************************************/ +static void reset_camera_struct(struct camera_data *cam) +{ + /*** + * The following parameter values are the defaults from the register map. + ***/ + cam->params.vp_params.lowlight_boost = 0; + + /* FlickerModes */ + cam->params.flicker_control.flicker_mode_req = NEVER_FLICKER; + + /* jpeg params */ + cam->params.compression.jpeg_options = CPIA2_VC_VC_JPEG_OPT_DEFAULT; + cam->params.compression.creep_period = 2; + cam->params.compression.user_squeeze = 20; + cam->params.compression.inhibit_htables = false; + + /* gpio params */ + cam->params.vp_params.gpio_direction = 0; /* write, the default safe mode */ + cam->params.vp_params.gpio_data = 0; + + /* Target kb params */ + cam->params.vc_params.quality = 100; + + /*** + * Set Sensor FPS as fast as possible. + ***/ + if(cam->params.pnp_id.device_type == DEVICE_STV_672) { + if(cam->params.version.sensor_flags == CPIA2_VP_SENSOR_FLAGS_500) + cam->params.vp_params.frame_rate = CPIA2_VP_FRAMERATE_15; + else + cam->params.vp_params.frame_rate = CPIA2_VP_FRAMERATE_30; + } else { + cam->params.vp_params.frame_rate = CPIA2_VP_FRAMERATE_30; + } + + /*** + * Set default video mode as large as possible : + * for vga sensor set to vga, for cif sensor set to CIF. + ***/ + if (cam->params.version.sensor_flags == CPIA2_VP_SENSOR_FLAGS_500) { + cam->sensor_type = CPIA2_SENSOR_500; + cam->video_size = VIDEOSIZE_VGA; + cam->params.roi.width = STV_IMAGE_VGA_COLS; + cam->params.roi.height = STV_IMAGE_VGA_ROWS; + } else { + cam->sensor_type = CPIA2_SENSOR_410; + cam->video_size = VIDEOSIZE_CIF; + cam->params.roi.width = STV_IMAGE_CIF_COLS; + cam->params.roi.height = STV_IMAGE_CIF_ROWS; + } + + cam->width = cam->params.roi.width; + cam->height = cam->params.roi.height; +} + +/****************************************************************************** + * + * cpia2_init_camera_struct + * + * Deinitialize camera struct + *****************************************************************************/ +void cpia2_deinit_camera_struct(struct camera_data *cam, struct usb_interface *intf) +{ + v4l2_device_unregister(&cam->v4l2_dev); + kfree(cam); +} + +/****************************************************************************** + * + * cpia2_init_camera_struct + * + * Initializes camera struct, does not call reset to fill in defaults. + *****************************************************************************/ +struct camera_data *cpia2_init_camera_struct(struct usb_interface *intf) +{ + struct camera_data *cam; + + cam = kzalloc(sizeof(*cam), GFP_KERNEL); + + if (!cam) { + ERR("couldn't kmalloc cpia2 struct\n"); + return NULL; + } + + cam->v4l2_dev.release = cpia2_camera_release; + if (v4l2_device_register(&intf->dev, &cam->v4l2_dev) < 0) { + v4l2_err(&cam->v4l2_dev, "couldn't register v4l2_device\n"); + kfree(cam); + return NULL; + } + + mutex_init(&cam->v4l2_lock); + init_waitqueue_head(&cam->wq_stream); + + return cam; +} + +/****************************************************************************** + * + * cpia2_init_camera + * + * Initializes camera. + *****************************************************************************/ +int cpia2_init_camera(struct camera_data *cam) +{ + DBG("Start\n"); + + cam->mmapped = false; + + /* Get sensor and asic types before reset. */ + cpia2_set_high_power(cam); + cpia2_get_version_info(cam); + if (cam->params.version.asic_id != CPIA2_ASIC_672) { + ERR("Device IO error (asicID has incorrect value of 0x%X\n", + cam->params.version.asic_id); + return -ENODEV; + } + + /* Set GPIO direction and data to a safe state. */ + cpia2_do_command(cam, CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION, + TRANSFER_WRITE, 0); + cpia2_do_command(cam, CPIA2_CMD_SET_VC_MP_GPIO_DATA, + TRANSFER_WRITE, 0); + + /* resetting struct requires version info for sensor and asic types */ + reset_camera_struct(cam); + + cpia2_set_low_power(cam); + + DBG("End\n"); + + return 0; +} + +/****************************************************************************** + * + * cpia2_allocate_buffers + * + *****************************************************************************/ +int cpia2_allocate_buffers(struct camera_data *cam) +{ + int i; + + if(!cam->buffers) { + u32 size = cam->num_frames*sizeof(struct framebuf); + cam->buffers = kmalloc(size, GFP_KERNEL); + if(!cam->buffers) { + ERR("couldn't kmalloc frame buffer structures\n"); + return -ENOMEM; + } + } + + if(!cam->frame_buffer) { + cam->frame_buffer = rvmalloc(cam->frame_size*cam->num_frames); + if (!cam->frame_buffer) { + ERR("couldn't vmalloc frame buffer data area\n"); + kfree(cam->buffers); + cam->buffers = NULL; + return -ENOMEM; + } + } + + for(i=0; i<cam->num_frames-1; ++i) { + cam->buffers[i].next = &cam->buffers[i+1]; + cam->buffers[i].data = cam->frame_buffer +i*cam->frame_size; + cam->buffers[i].status = FRAME_EMPTY; + cam->buffers[i].length = 0; + cam->buffers[i].max_length = 0; + cam->buffers[i].num = i; + } + cam->buffers[i].next = cam->buffers; + cam->buffers[i].data = cam->frame_buffer +i*cam->frame_size; + cam->buffers[i].status = FRAME_EMPTY; + cam->buffers[i].length = 0; + cam->buffers[i].max_length = 0; + cam->buffers[i].num = i; + cam->curbuff = cam->buffers; + cam->workbuff = cam->curbuff->next; + DBG("buffers=%p, curbuff=%p, workbuff=%p\n", cam->buffers, cam->curbuff, + cam->workbuff); + return 0; +} + +/****************************************************************************** + * + * cpia2_free_buffers + * + *****************************************************************************/ +void cpia2_free_buffers(struct camera_data *cam) +{ + if(cam->buffers) { + kfree(cam->buffers); + cam->buffers = NULL; + } + if(cam->frame_buffer) { + rvfree(cam->frame_buffer, cam->frame_size*cam->num_frames); + cam->frame_buffer = NULL; + } +} + +/****************************************************************************** + * + * cpia2_read + * + *****************************************************************************/ +long cpia2_read(struct camera_data *cam, + char __user *buf, unsigned long count, int noblock) +{ + struct framebuf *frame; + + if (!count) + return 0; + + if (!buf) { + ERR("%s: buffer NULL\n",__func__); + return -EINVAL; + } + + if (!cam) { + ERR("%s: Internal error, camera_data NULL!\n",__func__); + return -EINVAL; + } + + if (!cam->streaming) { + /* Start streaming */ + cpia2_usb_stream_start(cam, + cam->params.camera_state.stream_mode); + } + + /* Copy cam->curbuff in case it changes while we're processing */ + frame = cam->curbuff; + if (noblock && frame->status != FRAME_READY) { + return -EAGAIN; + } + + if (frame->status != FRAME_READY) { + mutex_unlock(&cam->v4l2_lock); + wait_event_interruptible(cam->wq_stream, + !video_is_registered(&cam->vdev) || + (frame = cam->curbuff)->status == FRAME_READY); + mutex_lock(&cam->v4l2_lock); + if (signal_pending(current)) + return -ERESTARTSYS; + if (!video_is_registered(&cam->vdev)) + return 0; + } + + /* copy data to user space */ + if (frame->length > count) + return -EFAULT; + if (copy_to_user(buf, frame->data, frame->length)) + return -EFAULT; + + count = frame->length; + + frame->status = FRAME_EMPTY; + + return count; +} + +/****************************************************************************** + * + * cpia2_poll + * + *****************************************************************************/ +__poll_t cpia2_poll(struct camera_data *cam, struct file *filp, + poll_table *wait) +{ + __poll_t status = v4l2_ctrl_poll(filp, wait); + + if ((poll_requested_events(wait) & (EPOLLIN | EPOLLRDNORM)) && + !cam->streaming) { + /* Start streaming */ + cpia2_usb_stream_start(cam, + cam->params.camera_state.stream_mode); + } + + poll_wait(filp, &cam->wq_stream, wait); + + if (cam->curbuff->status == FRAME_READY) + status |= EPOLLIN | EPOLLRDNORM; + + return status; +} + +/****************************************************************************** + * + * cpia2_remap_buffer + * + *****************************************************************************/ +int cpia2_remap_buffer(struct camera_data *cam, struct vm_area_struct *vma) +{ + const char *adr = (const char *)vma->vm_start; + unsigned long size = vma->vm_end-vma->vm_start; + unsigned long start_offset = vma->vm_pgoff << PAGE_SHIFT; + unsigned long start = (unsigned long) adr; + unsigned long page, pos; + + DBG("mmap offset:%ld size:%ld\n", start_offset, size); + + if (!video_is_registered(&cam->vdev)) + return -ENODEV; + + if (size > cam->frame_size*cam->num_frames || + (start_offset % cam->frame_size) != 0 || + (start_offset+size > cam->frame_size*cam->num_frames)) + return -EINVAL; + + pos = ((unsigned long) (cam->frame_buffer)) + start_offset; + while (size > 0) { + page = kvirt_to_pa(pos); + if (remap_pfn_range(vma, start, page >> PAGE_SHIFT, PAGE_SIZE, PAGE_SHARED)) + return -EAGAIN; + start += PAGE_SIZE; + pos += PAGE_SIZE; + if (size > PAGE_SIZE) + size -= PAGE_SIZE; + else + size = 0; + } + + cam->mmapped = true; + return 0; +} diff --git a/drivers/media/usb/cpia2/cpia2_registers.h b/drivers/media/usb/cpia2/cpia2_registers.h new file mode 100644 index 000000000..eebe46ea9 --- /dev/null +++ b/drivers/media/usb/cpia2/cpia2_registers.h @@ -0,0 +1,472 @@ +/**************************************************************************** + * + * Filename: cpia2registers.h + * + * Copyright 2001, STMicrolectronics, Inc. + * + * Description: + * Definitions for the CPia2 register set + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + ****************************************************************************/ + +#ifndef CPIA2_REGISTER_HEADER +#define CPIA2_REGISTER_HEADER + +/*** + * System register set (Bank 0) + ***/ +#define CPIA2_SYSTEM_DEVICE_HI 0x00 +#define CPIA2_SYSTEM_DEVICE_LO 0x01 + +#define CPIA2_SYSTEM_SYSTEM_CONTROL 0x02 +#define CPIA2_SYSTEM_CONTROL_LOW_POWER 0x00 +#define CPIA2_SYSTEM_CONTROL_HIGH_POWER 0x01 +#define CPIA2_SYSTEM_CONTROL_SUSPEND 0x02 +#define CPIA2_SYSTEM_CONTROL_V2W_ERR 0x10 +#define CPIA2_SYSTEM_CONTROL_RB_ERR 0x10 +#define CPIA2_SYSTEM_CONTROL_CLEAR_ERR 0x80 + +#define CPIA2_SYSTEM_INT_PACKET_CTRL 0x04 +#define CPIA2_SYSTEM_INT_PACKET_CTRL_ENABLE_SW_XX 0x01 +#define CPIA2_SYSTEM_INT_PACKET_CTRL_ENABLE_EOF 0x02 +#define CPIA2_SYSTEM_INT_PACKET_CTRL_ENABLE_INT1 0x04 + +#define CPIA2_SYSTEM_CACHE_CTRL 0x05 +#define CPIA2_SYSTEM_CACHE_CTRL_CACHE_RESET 0x01 +#define CPIA2_SYSTEM_CACHE_CTRL_CACHE_FLUSH 0x02 + +#define CPIA2_SYSTEM_SERIAL_CTRL 0x06 +#define CPIA2_SYSTEM_SERIAL_CTRL_NULL_CMD 0x00 +#define CPIA2_SYSTEM_SERIAL_CTRL_START_CMD 0x01 +#define CPIA2_SYSTEM_SERIAL_CTRL_STOP_CMD 0x02 +#define CPIA2_SYSTEM_SERIAL_CTRL_WRITE_CMD 0x03 +#define CPIA2_SYSTEM_SERIAL_CTRL_READ_ACK_CMD 0x04 +#define CPIA2_SYSTEM_SERIAL_CTRL_READ_NACK_CMD 0x05 + +#define CPIA2_SYSTEM_SERIAL_DATA 0x07 + +#define CPIA2_SYSTEM_VP_SERIAL_ADDR 0x08 + +/*** + * I2C addresses for various devices in CPiA2 + ***/ +#define CPIA2_SYSTEM_VP_SERIAL_ADDR_SENSOR 0x20 +#define CPIA2_SYSTEM_VP_SERIAL_ADDR_VP 0x88 +#define CPIA2_SYSTEM_VP_SERIAL_ADDR_676_VP 0x8A + +#define CPIA2_SYSTEM_SPARE_REG1 0x09 +#define CPIA2_SYSTEM_SPARE_REG2 0x0A +#define CPIA2_SYSTEM_SPARE_REG3 0x0B + +#define CPIA2_SYSTEM_MC_PORT_0 0x0C +#define CPIA2_SYSTEM_MC_PORT_1 0x0D +#define CPIA2_SYSTEM_MC_PORT_2 0x0E +#define CPIA2_SYSTEM_MC_PORT_3 0x0F + +#define CPIA2_SYSTEM_STATUS_PKT 0x20 +#define CPIA2_SYSTEM_STATUS_PKT_END 0x27 + +#define CPIA2_SYSTEM_DESCRIP_VID_HI 0x30 +#define CPIA2_SYSTEM_DESCRIP_VID_LO 0x31 +#define CPIA2_SYSTEM_DESCRIP_PID_HI 0x32 +#define CPIA2_SYSTEM_DESCRIP_PID_LO 0x33 + +#define CPIA2_SYSTEM_FW_VERSION_HI 0x34 +#define CPIA2_SYSTEM_FW_VERSION_LO 0x35 + +#define CPIA2_SYSTEM_CACHE_START_INDEX 0x80 +#define CPIA2_SYSTEM_CACHE_MAX_WRITES 0x10 + +/*** + * VC register set (Bank 1) + ***/ +#define CPIA2_VC_ASIC_ID 0x80 + +#define CPIA2_VC_ASIC_REV 0x81 + +#define CPIA2_VC_PW_CTRL 0x82 +#define CPIA2_VC_PW_CTRL_COLDSTART 0x01 +#define CPIA2_VC_PW_CTRL_CP_CLK_EN 0x02 +#define CPIA2_VC_PW_CTRL_VP_RESET_N 0x04 +#define CPIA2_VC_PW_CTRL_VC_CLK_EN 0x08 +#define CPIA2_VC_PW_CTRL_VC_RESET_N 0x10 +#define CPIA2_VC_PW_CTRL_GOTO_SUSPEND 0x20 +#define CPIA2_VC_PW_CTRL_UDC_SUSPEND 0x40 +#define CPIA2_VC_PW_CTRL_PWR_DOWN 0x80 + +#define CPIA2_VC_WAKEUP 0x83 +#define CPIA2_VC_WAKEUP_SW_ENABLE 0x01 +#define CPIA2_VC_WAKEUP_XX_ENABLE 0x02 +#define CPIA2_VC_WAKEUP_SW_ATWAKEUP 0x04 +#define CPIA2_VC_WAKEUP_XX_ATWAKEUP 0x08 + +#define CPIA2_VC_CLOCK_CTRL 0x84 +#define CPIA2_VC_CLOCK_CTRL_TESTUP72 0x01 + +#define CPIA2_VC_INT_ENABLE 0x88 +#define CPIA2_VC_INT_ENABLE_XX_IE 0x01 +#define CPIA2_VC_INT_ENABLE_SW_IE 0x02 +#define CPIA2_VC_INT_ENABLE_VC_IE 0x04 +#define CPIA2_VC_INT_ENABLE_USBDATA_IE 0x08 +#define CPIA2_VC_INT_ENABLE_USBSETUP_IE 0x10 +#define CPIA2_VC_INT_ENABLE_USBCFG_IE 0x20 + +#define CPIA2_VC_INT_FLAG 0x89 +#define CPIA2_VC_INT_ENABLE_XX_FLAG 0x01 +#define CPIA2_VC_INT_ENABLE_SW_FLAG 0x02 +#define CPIA2_VC_INT_ENABLE_VC_FLAG 0x04 +#define CPIA2_VC_INT_ENABLE_USBDATA_FLAG 0x08 +#define CPIA2_VC_INT_ENABLE_USBSETUP_FLAG 0x10 +#define CPIA2_VC_INT_ENABLE_USBCFG_FLAG 0x20 +#define CPIA2_VC_INT_ENABLE_SET_RESET_BIT 0x80 + +#define CPIA2_VC_INT_STATE 0x8A +#define CPIA2_VC_INT_STATE_XX_STATE 0x01 +#define CPIA2_VC_INT_STATE_SW_STATE 0x02 + +#define CPIA2_VC_MP_DIR 0x90 +#define CPIA2_VC_MP_DIR_INPUT 0x00 +#define CPIA2_VC_MP_DIR_OUTPUT 0x01 + +#define CPIA2_VC_MP_DATA 0x91 + +#define CPIA2_VC_DP_CTRL 0x98 +#define CPIA2_VC_DP_CTRL_MODE_0 0x00 +#define CPIA2_VC_DP_CTRL_MODE_A 0x01 +#define CPIA2_VC_DP_CTRL_MODE_B 0x02 +#define CPIA2_VC_DP_CTRL_MODE_C 0x03 +#define CPIA2_VC_DP_CTRL_FAKE_FST 0x04 + +#define CPIA2_VC_AD_CTRL 0x99 +#define CPIA2_VC_AD_CTRL_SRC_0 0x00 +#define CPIA2_VC_AD_CTRL_SRC_DIGI_A 0x01 +#define CPIA2_VC_AD_CTRL_SRC_REG 0x02 +#define CPIA2_VC_AD_CTRL_DST_USB 0x00 +#define CPIA2_VC_AD_CTRL_DST_REG 0x04 + +#define CPIA2_VC_AD_TEST_IN 0x9B + +#define CPIA2_VC_AD_TEST_OUT 0x9C + +#define CPIA2_VC_AD_STATUS 0x9D +#define CPIA2_VC_AD_STATUS_EMPTY 0x01 +#define CPIA2_VC_AD_STATUS_FULL 0x02 + +#define CPIA2_VC_DP_DATA 0x9E + +#define CPIA2_VC_ST_CTRL 0xA0 +#define CPIA2_VC_ST_CTRL_SRC_VC 0x00 +#define CPIA2_VC_ST_CTRL_SRC_DP 0x01 +#define CPIA2_VC_ST_CTRL_SRC_REG 0x02 + +#define CPIA2_VC_ST_CTRL_RAW_SELECT 0x04 + +#define CPIA2_VC_ST_CTRL_DST_USB 0x00 +#define CPIA2_VC_ST_CTRL_DST_DP 0x08 +#define CPIA2_VC_ST_CTRL_DST_REG 0x10 + +#define CPIA2_VC_ST_CTRL_FIFO_ENABLE 0x20 +#define CPIA2_VC_ST_CTRL_EOF_DETECT 0x40 + +#define CPIA2_VC_ST_TEST 0xA1 +#define CPIA2_VC_ST_TEST_MODE_MANUAL 0x00 +#define CPIA2_VC_ST_TEST_MODE_INCREMENT 0x02 + +#define CPIA2_VC_ST_TEST_AUTO_FILL 0x08 + +#define CPIA2_VC_ST_TEST_REPEAT_FIFO 0x10 + +#define CPIA2_VC_ST_TEST_IN 0xA2 + +#define CPIA2_VC_ST_TEST_OUT 0xA3 + +#define CPIA2_VC_ST_STATUS 0xA4 +#define CPIA2_VC_ST_STATUS_EMPTY 0x01 +#define CPIA2_VC_ST_STATUS_FULL 0x02 + +#define CPIA2_VC_ST_FRAME_DETECT_1 0xA5 + +#define CPIA2_VC_ST_FRAME_DETECT_2 0xA6 + +#define CPIA2_VC_USB_CTRL 0xA8 +#define CPIA2_VC_USB_CTRL_CMD_STALLED 0x01 +#define CPIA2_VC_USB_CTRL_CMD_READY 0x02 +#define CPIA2_VC_USB_CTRL_CMD_STATUS 0x04 +#define CPIA2_VC_USB_CTRL_CMD_STATUS_DIR 0x08 +#define CPIA2_VC_USB_CTRL_CMD_NO_CLASH 0x10 +#define CPIA2_VC_USB_CTRL_CMD_MICRO_ACCESS 0x80 + +#define CPIA2_VC_USB_STRM 0xA9 +#define CPIA2_VC_USB_STRM_ISO_ENABLE 0x01 +#define CPIA2_VC_USB_STRM_BLK_ENABLE 0x02 +#define CPIA2_VC_USB_STRM_INT_ENABLE 0x04 +#define CPIA2_VC_USB_STRM_AUD_ENABLE 0x08 + +#define CPIA2_VC_USB_STATUS 0xAA +#define CPIA2_VC_USB_STATUS_CMD_IN_PROGRESS 0x01 +#define CPIA2_VC_USB_STATUS_CMD_STATUS_STALL 0x02 +#define CPIA2_VC_USB_STATUS_CMD_HANDSHAKE 0x04 +#define CPIA2_VC_USB_STATUS_CMD_OVERRIDE 0x08 +#define CPIA2_VC_USB_STATUS_CMD_FIFO_BUSY 0x10 +#define CPIA2_VC_USB_STATUS_BULK_REPEAT_TXN 0x20 +#define CPIA2_VC_USB_STATUS_CONFIG_DONE 0x40 +#define CPIA2_VC_USB_STATUS_USB_SUSPEND 0x80 + +#define CPIA2_VC_USB_CMDW 0xAB + +#define CPIA2_VC_USB_DATARW 0xAC + +#define CPIA2_VC_USB_INFO 0xAD + +#define CPIA2_VC_USB_CONFIG 0xAE + +#define CPIA2_VC_USB_SETTINGS 0xAF +#define CPIA2_VC_USB_SETTINGS_CONFIG_MASK 0x03 +#define CPIA2_VC_USB_SETTINGS_INTERFACE_MASK 0x0C +#define CPIA2_VC_USB_SETTINGS_ALTERNATE_MASK 0x70 + +#define CPIA2_VC_USB_ISOLIM 0xB0 + +#define CPIA2_VC_USB_ISOFAILS 0xB1 + +#define CPIA2_VC_USB_ISOMAXPKTHI 0xB2 + +#define CPIA2_VC_USB_ISOMAXPKTLO 0xB3 + +#define CPIA2_VC_V2W_CTRL 0xB8 +#define CPIA2_VC_V2W_SELECT 0x01 + +#define CPIA2_VC_V2W_SCL 0xB9 + +#define CPIA2_VC_V2W_SDA 0xBA + +#define CPIA2_VC_VC_CTRL 0xC0 +#define CPIA2_VC_VC_CTRL_RUN 0x01 +#define CPIA2_VC_VC_CTRL_SINGLESHOT 0x02 +#define CPIA2_VC_VC_CTRL_IDLING 0x04 +#define CPIA2_VC_VC_CTRL_INHIBIT_H_TABLES 0x10 +#define CPIA2_VC_VC_CTRL_INHIBIT_Q_TABLES 0x20 +#define CPIA2_VC_VC_CTRL_INHIBIT_PRIVATE 0x40 + +#define CPIA2_VC_VC_RESTART_IVAL_HI 0xC1 + +#define CPIA2_VC_VC_RESTART_IVAL_LO 0xC2 + +#define CPIA2_VC_VC_FORMAT 0xC3 +#define CPIA2_VC_VC_FORMAT_UFIRST 0x01 +#define CPIA2_VC_VC_FORMAT_MONO 0x02 +#define CPIA2_VC_VC_FORMAT_DECIMATING 0x04 +#define CPIA2_VC_VC_FORMAT_SHORTLINE 0x08 +#define CPIA2_VC_VC_FORMAT_SELFTEST 0x10 + +#define CPIA2_VC_VC_CLOCKS 0xC4 +#define CPIA2_VC_VC_CLOCKS_CLKDIV_MASK 0x03 +#define CPIA2_VC_VC_672_CLOCKS_CIF_DIV_BY_3 0x04 +#define CPIA2_VC_VC_672_CLOCKS_SCALING 0x08 +#define CPIA2_VC_VC_CLOCKS_LOGDIV0 0x00 +#define CPIA2_VC_VC_CLOCKS_LOGDIV1 0x01 +#define CPIA2_VC_VC_CLOCKS_LOGDIV2 0x02 +#define CPIA2_VC_VC_CLOCKS_LOGDIV3 0x03 +#define CPIA2_VC_VC_676_CLOCKS_CIF_DIV_BY_3 0x08 +#define CPIA2_VC_VC_676_CLOCKS_SCALING 0x10 + +#define CPIA2_VC_VC_IHSIZE_LO 0xC5 + +#define CPIA2_VC_VC_XLIM_HI 0xC6 + +#define CPIA2_VC_VC_XLIM_LO 0xC7 + +#define CPIA2_VC_VC_YLIM_HI 0xC8 + +#define CPIA2_VC_VC_YLIM_LO 0xC9 + +#define CPIA2_VC_VC_OHSIZE 0xCA + +#define CPIA2_VC_VC_OVSIZE 0xCB + +#define CPIA2_VC_VC_HCROP 0xCC + +#define CPIA2_VC_VC_VCROP 0xCD + +#define CPIA2_VC_VC_HPHASE 0xCE + +#define CPIA2_VC_VC_VPHASE 0xCF + +#define CPIA2_VC_VC_HISPAN 0xD0 + +#define CPIA2_VC_VC_VISPAN 0xD1 + +#define CPIA2_VC_VC_HICROP 0xD2 + +#define CPIA2_VC_VC_VICROP 0xD3 + +#define CPIA2_VC_VC_HFRACT 0xD4 +#define CPIA2_VC_VC_HFRACT_DEN_MASK 0x0F +#define CPIA2_VC_VC_HFRACT_NUM_MASK 0xF0 + +#define CPIA2_VC_VC_VFRACT 0xD5 +#define CPIA2_VC_VC_VFRACT_DEN_MASK 0x0F +#define CPIA2_VC_VC_VFRACT_NUM_MASK 0xF0 + +#define CPIA2_VC_VC_JPEG_OPT 0xD6 +#define CPIA2_VC_VC_JPEG_OPT_DOUBLE_SQUEEZE 0x01 +#define CPIA2_VC_VC_JPEG_OPT_NO_DC_AUTO_SQUEEZE 0x02 +#define CPIA2_VC_VC_JPEG_OPT_AUTO_SQUEEZE 0x04 +#define CPIA2_VC_VC_JPEG_OPT_DEFAULT (CPIA2_VC_VC_JPEG_OPT_DOUBLE_SQUEEZE|\ + CPIA2_VC_VC_JPEG_OPT_AUTO_SQUEEZE) + + +#define CPIA2_VC_VC_CREEP_PERIOD 0xD7 +#define CPIA2_VC_VC_USER_SQUEEZE 0xD8 +#define CPIA2_VC_VC_TARGET_KB 0xD9 + +#define CPIA2_VC_VC_AUTO_SQUEEZE 0xE6 + + +/*** + * VP register set (Bank 2) + ***/ +#define CPIA2_VP_DEVICEH 0 +#define CPIA2_VP_DEVICEL 1 + +#define CPIA2_VP_SYSTEMSTATE 0x02 +#define CPIA2_VP_SYSTEMSTATE_HK_ALIVE 0x01 + +#define CPIA2_VP_SYSTEMCTRL 0x03 +#define CPIA2_VP_SYSTEMCTRL_REQ_CLEAR_ERROR 0x80 +#define CPIA2_VP_SYSTEMCTRL_POWER_DOWN_PLL 0x20 +#define CPIA2_VP_SYSTEMCTRL_REQ_SUSPEND_STATE 0x10 +#define CPIA2_VP_SYSTEMCTRL_REQ_SERIAL_WAKEUP 0x08 +#define CPIA2_VP_SYSTEMCTRL_REQ_AUTOLOAD 0x04 +#define CPIA2_VP_SYSTEMCTRL_HK_CONTROL 0x02 +#define CPIA2_VP_SYSTEMCTRL_POWER_CONTROL 0x01 + +#define CPIA2_VP_SENSOR_FLAGS 0x05 +#define CPIA2_VP_SENSOR_FLAGS_404 0x01 +#define CPIA2_VP_SENSOR_FLAGS_407 0x02 +#define CPIA2_VP_SENSOR_FLAGS_409 0x04 +#define CPIA2_VP_SENSOR_FLAGS_410 0x08 +#define CPIA2_VP_SENSOR_FLAGS_500 0x10 + +#define CPIA2_VP_SENSOR_REV 0x06 + +#define CPIA2_VP_DEVICE_CONFIG 0x07 +#define CPIA2_VP_DEVICE_CONFIG_SERIAL_BRIDGE 0x01 + +#define CPIA2_VP_GPIO_DIRECTION 0x08 +#define CPIA2_VP_GPIO_READ 0xFF +#define CPIA2_VP_GPIO_WRITE 0x00 + +#define CPIA2_VP_GPIO_DATA 0x09 + +#define CPIA2_VP_RAM_ADDR_H 0x0A +#define CPIA2_VP_RAM_ADDR_L 0x0B +#define CPIA2_VP_RAM_DATA 0x0C + +#define CPIA2_VP_PATCH_REV 0x0F + +#define CPIA2_VP4_USER_MODE 0x10 +#define CPIA2_VP5_USER_MODE 0x13 +#define CPIA2_VP_USER_MODE_CIF 0x01 +#define CPIA2_VP_USER_MODE_QCIFDS 0x02 +#define CPIA2_VP_USER_MODE_QCIFPTC 0x04 +#define CPIA2_VP_USER_MODE_QVGADS 0x08 +#define CPIA2_VP_USER_MODE_QVGAPTC 0x10 +#define CPIA2_VP_USER_MODE_VGA 0x20 + +#define CPIA2_VP4_FRAMERATE_REQUEST 0x11 +#define CPIA2_VP5_FRAMERATE_REQUEST 0x14 +#define CPIA2_VP_FRAMERATE_60 0x80 +#define CPIA2_VP_FRAMERATE_50 0x40 +#define CPIA2_VP_FRAMERATE_30 0x20 +#define CPIA2_VP_FRAMERATE_25 0x10 +#define CPIA2_VP_FRAMERATE_15 0x08 +#define CPIA2_VP_FRAMERATE_12_5 0x04 +#define CPIA2_VP_FRAMERATE_7_5 0x02 +#define CPIA2_VP_FRAMERATE_6_25 0x01 + +#define CPIA2_VP4_USER_EFFECTS 0x12 +#define CPIA2_VP5_USER_EFFECTS 0x15 +#define CPIA2_VP_USER_EFFECTS_COLBARS 0x01 +#define CPIA2_VP_USER_EFFECTS_COLBARS_GRAD 0x02 +#define CPIA2_VP_USER_EFFECTS_MIRROR 0x04 +#define CPIA2_VP_USER_EFFECTS_FLIP 0x40 // VP5 only + +/* NOTE: CPIA2_VP_EXPOSURE_MODES shares the same register as VP5 User + * Effects */ +#define CPIA2_VP_EXPOSURE_MODES 0x15 +#define CPIA2_VP_EXPOSURE_MODES_INHIBIT_FLICKER 0x20 +#define CPIA2_VP_EXPOSURE_MODES_COMPILE_EXP 0x10 + +#define CPIA2_VP4_EXPOSURE_TARGET 0x16 // VP4 +#define CPIA2_VP5_EXPOSURE_TARGET 0x20 // VP5 + +#define CPIA2_VP_FLICKER_MODES 0x1B +#define CPIA2_VP_FLICKER_MODES_50HZ 0x80 +#define CPIA2_VP_FLICKER_MODES_CUSTOM_FLT_FFREQ 0x40 +#define CPIA2_VP_FLICKER_MODES_NEVER_FLICKER 0x20 +#define CPIA2_VP_FLICKER_MODES_INHIBIT_RUB 0x10 +#define CPIA2_VP_FLICKER_MODES_ADJUST_LINE_FREQ 0x08 +#define CPIA2_VP_FLICKER_MODES_CUSTOM_INT_FFREQ 0x04 + +#define CPIA2_VP_UMISC 0x1D +#define CPIA2_VP_UMISC_FORCE_MONO 0x80 +#define CPIA2_VP_UMISC_FORCE_ID_MASK 0x40 +#define CPIA2_VP_UMISC_INHIBIT_AUTO_FGS 0x20 +#define CPIA2_VP_UMISC_INHIBIT_AUTO_DIMS 0x08 +#define CPIA2_VP_UMISC_OPT_FOR_SENSOR_DS 0x04 +#define CPIA2_VP_UMISC_INHIBIT_AUTO_MODE_INT 0x02 + +#define CPIA2_VP5_ANTIFLKRSETUP 0x22 //34 + +#define CPIA2_VP_INTERPOLATION 0x24 +#define CPIA2_VP_INTERPOLATION_EVEN_FIRST 0x40 +#define CPIA2_VP_INTERPOLATION_HJOG 0x20 +#define CPIA2_VP_INTERPOLATION_VJOG 0x10 + +#define CPIA2_VP_GAMMA 0x25 +#define CPIA2_VP_DEFAULT_GAMMA 0x10 + +#define CPIA2_VP_YRANGE 0x26 + +#define CPIA2_VP_SATURATION 0x27 + +#define CPIA2_VP5_MYBLACK_LEVEL 0x3A //58 +#define CPIA2_VP5_MCYRANGE 0x3B //59 +#define CPIA2_VP5_MYCEILING 0x3C //60 +#define CPIA2_VP5_MCUVSATURATION 0x3D //61 + + +#define CPIA2_VP_REHASH_VALUES 0x60 + + +/*** + * Common sensor registers + ***/ +#define CPIA2_SENSOR_DEVICE_H 0x00 +#define CPIA2_SENSOR_DEVICE_L 0x01 + +#define CPIA2_SENSOR_DATA_FORMAT 0x16 +#define CPIA2_SENSOR_DATA_FORMAT_HMIRROR 0x08 +#define CPIA2_SENSOR_DATA_FORMAT_VMIRROR 0x10 + +#define CPIA2_SENSOR_CR1 0x76 +#define CPIA2_SENSOR_CR1_STAND_BY 0x01 +#define CPIA2_SENSOR_CR1_DOWN_RAMP_GEN 0x02 +#define CPIA2_SENSOR_CR1_DOWN_COLUMN_ADC 0x04 +#define CPIA2_SENSOR_CR1_DOWN_CAB_REGULATOR 0x08 +#define CPIA2_SENSOR_CR1_DOWN_AUDIO_REGULATOR 0x10 +#define CPIA2_SENSOR_CR1_DOWN_VRT_AMP 0x20 +#define CPIA2_SENSOR_CR1_DOWN_BAND_GAP 0x40 + +#endif diff --git a/drivers/media/usb/cpia2/cpia2_usb.c b/drivers/media/usb/cpia2/cpia2_usb.c new file mode 100644 index 000000000..d9cac7064 --- /dev/null +++ b/drivers/media/usb/cpia2/cpia2_usb.c @@ -0,0 +1,975 @@ +/**************************************************************************** + * + * Filename: cpia2_usb.c + * + * Copyright 2001, STMicrolectronics, Inc. + * Contact: steve.miller@st.com + * + * Description: + * This is a USB driver for CPia2 based video cameras. + * The infrastructure of this driver is based on the cpia usb driver by + * Jochen Scharrlach and Johannes Erdfeldt. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Stripped of 2.4 stuff ready for main kernel submit by + * Alan Cox <alan@lxorguk.ukuu.org.uk> + ****************************************************************************/ + +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/module.h> + +#include "cpia2.h" + +static int frame_sizes[] = { + 0, // USBIF_CMDONLY + 0, // USBIF_BULK + 128, // USBIF_ISO_1 + 384, // USBIF_ISO_2 + 640, // USBIF_ISO_3 + 768, // USBIF_ISO_4 + 896, // USBIF_ISO_5 + 1023, // USBIF_ISO_6 +}; + +#define FRAMES_PER_DESC 10 +#define FRAME_SIZE_PER_DESC frame_sizes[cam->cur_alt] + +static void process_frame(struct camera_data *cam); +static void cpia2_usb_complete(struct urb *urb); +static int cpia2_usb_probe(struct usb_interface *intf, + const struct usb_device_id *id); +static void cpia2_usb_disconnect(struct usb_interface *intf); +static int cpia2_usb_suspend(struct usb_interface *intf, pm_message_t message); +static int cpia2_usb_resume(struct usb_interface *intf); + +static void free_sbufs(struct camera_data *cam); +static void add_APPn(struct camera_data *cam); +static void add_COM(struct camera_data *cam); +static int submit_urbs(struct camera_data *cam); +static int set_alternate(struct camera_data *cam, unsigned int alt); +static int configure_transfer_mode(struct camera_data *cam, unsigned int alt); + +static const struct usb_device_id cpia2_id_table[] = { + {USB_DEVICE(0x0553, 0x0100)}, + {USB_DEVICE(0x0553, 0x0140)}, + {USB_DEVICE(0x0553, 0x0151)}, /* STV0676 */ + {} /* Terminating entry */ +}; +MODULE_DEVICE_TABLE(usb, cpia2_id_table); + +static struct usb_driver cpia2_driver = { + .name = "cpia2", + .probe = cpia2_usb_probe, + .disconnect = cpia2_usb_disconnect, + .suspend = cpia2_usb_suspend, + .resume = cpia2_usb_resume, + .reset_resume = cpia2_usb_resume, + .id_table = cpia2_id_table +}; + + +/****************************************************************************** + * + * process_frame + * + *****************************************************************************/ +static void process_frame(struct camera_data *cam) +{ + static int frame_count; + + unsigned char *inbuff = cam->workbuff->data; + + DBG("Processing frame #%d, current:%d\n", + cam->workbuff->num, cam->curbuff->num); + + if(cam->workbuff->length > cam->workbuff->max_length) + cam->workbuff->max_length = cam->workbuff->length; + + if ((inbuff[0] == 0xFF) && (inbuff[1] == 0xD8)) { + frame_count++; + } else { + cam->workbuff->status = FRAME_ERROR; + DBG("Start of frame not found\n"); + return; + } + + /*** + * Now the output buffer should have a JPEG image in it. + ***/ + if(!cam->first_image_seen) { + /* Always skip the first image after streaming + * starts. It is almost certainly corrupt. */ + cam->first_image_seen = 1; + cam->workbuff->status = FRAME_EMPTY; + return; + } + if (cam->workbuff->length > 3) { + if(cam->mmapped && + cam->workbuff->length < cam->workbuff->max_length) { + /* No junk in the buffers */ + memset(cam->workbuff->data+cam->workbuff->length, + 0, cam->workbuff->max_length- + cam->workbuff->length); + } + cam->workbuff->max_length = cam->workbuff->length; + cam->workbuff->status = FRAME_READY; + + if(!cam->mmapped && cam->num_frames > 2) { + /* During normal reading, the most recent + * frame will be read. If the current frame + * hasn't started reading yet, it will never + * be read, so mark it empty. If the buffer is + * mmapped, or we have few buffers, we need to + * wait for the user to free the buffer. + * + * NOTE: This is not entirely foolproof with 3 + * buffers, but it would take an EXTREMELY + * overloaded system to cause problems (possible + * image data corruption). Basically, it would + * need to take more time to execute cpia2_read + * than it would for the camera to send + * cam->num_frames-2 frames before problems + * could occur. + */ + cam->curbuff->status = FRAME_EMPTY; + } + cam->curbuff = cam->workbuff; + cam->workbuff = cam->workbuff->next; + DBG("Changed buffers, work:%d, current:%d\n", + cam->workbuff->num, cam->curbuff->num); + return; + } else { + DBG("Not enough data for an image.\n"); + } + + cam->workbuff->status = FRAME_ERROR; + return; +} + +/****************************************************************************** + * + * add_APPn + * + * Adds a user specified APPn record + *****************************************************************************/ +static void add_APPn(struct camera_data *cam) +{ + if(cam->APP_len > 0) { + cam->workbuff->data[cam->workbuff->length++] = 0xFF; + cam->workbuff->data[cam->workbuff->length++] = 0xE0+cam->APPn; + cam->workbuff->data[cam->workbuff->length++] = 0; + cam->workbuff->data[cam->workbuff->length++] = cam->APP_len+2; + memcpy(cam->workbuff->data+cam->workbuff->length, + cam->APP_data, cam->APP_len); + cam->workbuff->length += cam->APP_len; + } +} + +/****************************************************************************** + * + * add_COM + * + * Adds a user specified COM record + *****************************************************************************/ +static void add_COM(struct camera_data *cam) +{ + if(cam->COM_len > 0) { + cam->workbuff->data[cam->workbuff->length++] = 0xFF; + cam->workbuff->data[cam->workbuff->length++] = 0xFE; + cam->workbuff->data[cam->workbuff->length++] = 0; + cam->workbuff->data[cam->workbuff->length++] = cam->COM_len+2; + memcpy(cam->workbuff->data+cam->workbuff->length, + cam->COM_data, cam->COM_len); + cam->workbuff->length += cam->COM_len; + } +} + +/****************************************************************************** + * + * cpia2_usb_complete + * + * callback when incoming packet is received + *****************************************************************************/ +static void cpia2_usb_complete(struct urb *urb) +{ + int i; + unsigned char *cdata; + static bool frame_ready = false; + struct camera_data *cam = (struct camera_data *) urb->context; + + if (urb->status!=0) { + if (!(urb->status == -ENOENT || + urb->status == -ECONNRESET || + urb->status == -ESHUTDOWN)) + { + DBG("urb->status = %d!\n", urb->status); + } + DBG("Stopping streaming\n"); + return; + } + + if (!cam->streaming || !video_is_registered(&cam->vdev)) { + LOG("Will now stop the streaming: streaming = %d, present=%d\n", + cam->streaming, video_is_registered(&cam->vdev)); + return; + } + + /*** + * Packet collater + ***/ + //DBG("Collating %d packets\n", urb->number_of_packets); + for (i = 0; i < urb->number_of_packets; i++) { + u16 checksum, iso_checksum; + int j; + int n = urb->iso_frame_desc[i].actual_length; + int st = urb->iso_frame_desc[i].status; + + if(cam->workbuff->status == FRAME_READY) { + struct framebuf *ptr; + /* Try to find an available buffer */ + DBG("workbuff full, searching\n"); + for (ptr = cam->workbuff->next; + ptr != cam->workbuff; + ptr = ptr->next) + { + if (ptr->status == FRAME_EMPTY) { + ptr->status = FRAME_READING; + ptr->length = 0; + break; + } + } + if (ptr == cam->workbuff) + break; /* No READING or EMPTY buffers left */ + + cam->workbuff = ptr; + } + + if (cam->workbuff->status == FRAME_EMPTY || + cam->workbuff->status == FRAME_ERROR) { + cam->workbuff->status = FRAME_READING; + cam->workbuff->length = 0; + } + + //DBG(" Packet %d length = %d, status = %d\n", i, n, st); + cdata = urb->transfer_buffer + urb->iso_frame_desc[i].offset; + + if (st) { + LOG("cpia2 data error: [%d] len=%d, status = %d\n", + i, n, st); + if(!ALLOW_CORRUPT) + cam->workbuff->status = FRAME_ERROR; + continue; + } + + if(n<=2) + continue; + + checksum = 0; + for(j=0; j<n-2; ++j) + checksum += cdata[j]; + iso_checksum = cdata[j] + cdata[j+1]*256; + if(checksum != iso_checksum) { + LOG("checksum mismatch: [%d] len=%d, calculated = %x, checksum = %x\n", + i, n, (int)checksum, (int)iso_checksum); + if(!ALLOW_CORRUPT) { + cam->workbuff->status = FRAME_ERROR; + continue; + } + } + n -= 2; + + if(cam->workbuff->status != FRAME_READING) { + if((0xFF == cdata[0] && 0xD8 == cdata[1]) || + (0xD8 == cdata[0] && 0xFF == cdata[1] && + 0 != cdata[2])) { + /* frame is skipped, but increment total + * frame count anyway */ + cam->frame_count++; + } + DBG("workbuff not reading, status=%d\n", + cam->workbuff->status); + continue; + } + + if (cam->frame_size < cam->workbuff->length + n) { + ERR("buffer overflow! length: %d, n: %d\n", + cam->workbuff->length, n); + cam->workbuff->status = FRAME_ERROR; + if(cam->workbuff->length > cam->workbuff->max_length) + cam->workbuff->max_length = + cam->workbuff->length; + continue; + } + + if (cam->workbuff->length == 0) { + int data_offset; + if ((0xD8 == cdata[0]) && (0xFF == cdata[1])) { + data_offset = 1; + } else if((0xFF == cdata[0]) && (0xD8 == cdata[1]) + && (0xFF == cdata[2])) { + data_offset = 2; + } else { + DBG("Ignoring packet, not beginning!\n"); + continue; + } + DBG("Start of frame pattern found\n"); + v4l2_get_timestamp(&cam->workbuff->timestamp); + cam->workbuff->seq = cam->frame_count++; + cam->workbuff->data[0] = 0xFF; + cam->workbuff->data[1] = 0xD8; + cam->workbuff->length = 2; + add_APPn(cam); + add_COM(cam); + memcpy(cam->workbuff->data+cam->workbuff->length, + cdata+data_offset, n-data_offset); + cam->workbuff->length += n-data_offset; + } else if (cam->workbuff->length > 0) { + memcpy(cam->workbuff->data + cam->workbuff->length, + cdata, n); + cam->workbuff->length += n; + } + + if ((cam->workbuff->length >= 3) && + (cam->workbuff->data[cam->workbuff->length - 3] == 0xFF) && + (cam->workbuff->data[cam->workbuff->length - 2] == 0xD9) && + (cam->workbuff->data[cam->workbuff->length - 1] == 0xFF)) { + frame_ready = true; + cam->workbuff->data[cam->workbuff->length - 1] = 0; + cam->workbuff->length -= 1; + } else if ((cam->workbuff->length >= 2) && + (cam->workbuff->data[cam->workbuff->length - 2] == 0xFF) && + (cam->workbuff->data[cam->workbuff->length - 1] == 0xD9)) { + frame_ready = true; + } + + if (frame_ready) { + DBG("Workbuff image size = %d\n",cam->workbuff->length); + process_frame(cam); + + frame_ready = false; + + if (waitqueue_active(&cam->wq_stream)) + wake_up_interruptible(&cam->wq_stream); + } + } + + if(cam->streaming) { + /* resubmit */ + urb->dev = cam->dev; + if ((i = usb_submit_urb(urb, GFP_ATOMIC)) != 0) + ERR("%s: usb_submit_urb ret %d!\n", __func__, i); + } +} + +/****************************************************************************** + * + * configure_transfer_mode + * + *****************************************************************************/ +static int configure_transfer_mode(struct camera_data *cam, unsigned int alt) +{ + static unsigned char iso_regs[8][4] = { + {0x00, 0x00, 0x00, 0x00}, + {0x00, 0x00, 0x00, 0x00}, + {0xB9, 0x00, 0x00, 0x7E}, + {0xB9, 0x00, 0x01, 0x7E}, + {0xB9, 0x00, 0x02, 0x7E}, + {0xB9, 0x00, 0x02, 0xFE}, + {0xB9, 0x00, 0x03, 0x7E}, + {0xB9, 0x00, 0x03, 0xFD} + }; + struct cpia2_command cmd; + unsigned char reg; + + if (!video_is_registered(&cam->vdev)) + return -ENODEV; + + /*** + * Write the isoc registers according to the alternate selected + ***/ + cmd.direction = TRANSFER_WRITE; + cmd.buffer.block_data[0] = iso_regs[alt][0]; + cmd.buffer.block_data[1] = iso_regs[alt][1]; + cmd.buffer.block_data[2] = iso_regs[alt][2]; + cmd.buffer.block_data[3] = iso_regs[alt][3]; + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC; + cmd.start = CPIA2_VC_USB_ISOLIM; + cmd.reg_count = 4; + cpia2_send_command(cam, &cmd); + + /*** + * Enable relevant streams before starting polling. + * First read USB Stream Config Register. + ***/ + cmd.direction = TRANSFER_READ; + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC; + cmd.start = CPIA2_VC_USB_STRM; + cmd.reg_count = 1; + cpia2_send_command(cam, &cmd); + reg = cmd.buffer.block_data[0]; + + /* Clear iso, bulk, and int */ + reg &= ~(CPIA2_VC_USB_STRM_BLK_ENABLE | + CPIA2_VC_USB_STRM_ISO_ENABLE | + CPIA2_VC_USB_STRM_INT_ENABLE); + + if (alt == USBIF_BULK) { + DBG("Enabling bulk xfer\n"); + reg |= CPIA2_VC_USB_STRM_BLK_ENABLE; /* Enable Bulk */ + cam->xfer_mode = XFER_BULK; + } else if (alt >= USBIF_ISO_1) { + DBG("Enabling ISOC xfer\n"); + reg |= CPIA2_VC_USB_STRM_ISO_ENABLE; + cam->xfer_mode = XFER_ISOC; + } + + cmd.buffer.block_data[0] = reg; + cmd.direction = TRANSFER_WRITE; + cmd.start = CPIA2_VC_USB_STRM; + cmd.reg_count = 1; + cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC; + cpia2_send_command(cam, &cmd); + + return 0; +} + +/****************************************************************************** + * + * cpia2_usb_change_streaming_alternate + * + *****************************************************************************/ +int cpia2_usb_change_streaming_alternate(struct camera_data *cam, + unsigned int alt) +{ + int ret = 0; + + if(alt < USBIF_ISO_1 || alt > USBIF_ISO_6) + return -EINVAL; + + if(alt == cam->params.camera_state.stream_mode) + return 0; + + cpia2_usb_stream_pause(cam); + + configure_transfer_mode(cam, alt); + + cam->params.camera_state.stream_mode = alt; + + /* Reset the camera to prevent image quality degradation */ + cpia2_reset_camera(cam); + + cpia2_usb_stream_resume(cam); + + return ret; +} + +/****************************************************************************** + * + * set_alternate + * + *****************************************************************************/ +static int set_alternate(struct camera_data *cam, unsigned int alt) +{ + int ret = 0; + + if(alt == cam->cur_alt) + return 0; + + if (cam->cur_alt != USBIF_CMDONLY) { + DBG("Changing from alt %d to %d\n", cam->cur_alt, USBIF_CMDONLY); + ret = usb_set_interface(cam->dev, cam->iface, USBIF_CMDONLY); + if (ret != 0) + return ret; + } + if (alt != USBIF_CMDONLY) { + DBG("Changing from alt %d to %d\n", USBIF_CMDONLY, alt); + ret = usb_set_interface(cam->dev, cam->iface, alt); + if (ret != 0) + return ret; + } + + cam->old_alt = cam->cur_alt; + cam->cur_alt = alt; + + return ret; +} + +/****************************************************************************** + * + * free_sbufs + * + * Free all cam->sbuf[]. All non-NULL .data and .urb members that are non-NULL + * are assumed to be allocated. Non-NULL .urb members are also assumed to be + * submitted (and must therefore be killed before they are freed). + *****************************************************************************/ +static void free_sbufs(struct camera_data *cam) +{ + int i; + + for (i = 0; i < NUM_SBUF; i++) { + if(cam->sbuf[i].urb) { + usb_kill_urb(cam->sbuf[i].urb); + usb_free_urb(cam->sbuf[i].urb); + cam->sbuf[i].urb = NULL; + } + if(cam->sbuf[i].data) { + kfree(cam->sbuf[i].data); + cam->sbuf[i].data = NULL; + } + } +} + +/******* +* Convenience functions +*******/ +/**************************************************************************** + * + * write_packet + * + ***************************************************************************/ +static int write_packet(struct usb_device *udev, + u8 request, u8 * registers, u16 start, size_t size) +{ + unsigned char *buf; + int ret; + + if (!registers || size <= 0) + return -EINVAL; + + buf = kmemdup(registers, size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + ret = usb_control_msg(udev, + usb_sndctrlpipe(udev, 0), + request, + USB_TYPE_VENDOR | USB_RECIP_DEVICE, + start, /* value */ + 0, /* index */ + buf, /* buffer */ + size, + 1000); + + kfree(buf); + return ret; +} + +/**************************************************************************** + * + * read_packet + * + ***************************************************************************/ +static int read_packet(struct usb_device *udev, + u8 request, u8 * registers, u16 start, size_t size) +{ + unsigned char *buf; + int ret; + + if (!registers || size <= 0) + return -EINVAL; + + buf = kmalloc(size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + ret = usb_control_msg(udev, + usb_rcvctrlpipe(udev, 0), + request, + USB_DIR_IN|USB_TYPE_VENDOR|USB_RECIP_DEVICE, + start, /* value */ + 0, /* index */ + buf, /* buffer */ + size, + 1000); + + if (ret >= 0) + memcpy(registers, buf, size); + + kfree(buf); + + return ret; +} + +/****************************************************************************** + * + * cpia2_usb_transfer_cmd + * + *****************************************************************************/ +int cpia2_usb_transfer_cmd(struct camera_data *cam, + void *registers, + u8 request, u8 start, u8 count, u8 direction) +{ + int err = 0; + struct usb_device *udev = cam->dev; + + if (!udev) { + ERR("%s: Internal driver error: udev is NULL\n", __func__); + return -EINVAL; + } + + if (!registers) { + ERR("%s: Internal driver error: register array is NULL\n", __func__); + return -EINVAL; + } + + if (direction == TRANSFER_READ) { + err = read_packet(udev, request, (u8 *)registers, start, count); + if (err > 0) + err = 0; + } else if (direction == TRANSFER_WRITE) { + err =write_packet(udev, request, (u8 *)registers, start, count); + if (err < 0) { + LOG("Control message failed, err val = %d\n", err); + LOG("Message: request = 0x%0X, start = 0x%0X\n", + request, start); + LOG("Message: count = %d, register[0] = 0x%0X\n", + count, ((unsigned char *) registers)[0]); + } else + err=0; + } else { + LOG("Unexpected first byte of direction: %d\n", + direction); + return -EINVAL; + } + + if(err != 0) + LOG("Unexpected error: %d\n", err); + return err; +} + + +/****************************************************************************** + * + * submit_urbs + * + *****************************************************************************/ +static int submit_urbs(struct camera_data *cam) +{ + struct urb *urb; + int fx, err, i, j; + + for(i=0; i<NUM_SBUF; ++i) { + if (cam->sbuf[i].data) + continue; + cam->sbuf[i].data = + kmalloc_array(FRAME_SIZE_PER_DESC, FRAMES_PER_DESC, + GFP_KERNEL); + if (!cam->sbuf[i].data) { + while (--i >= 0) { + kfree(cam->sbuf[i].data); + cam->sbuf[i].data = NULL; + } + return -ENOMEM; + } + } + + /* We double buffer the Isoc lists, and also know the polling + * interval is every frame (1 == (1 << (bInterval -1))). + */ + for(i=0; i<NUM_SBUF; ++i) { + if(cam->sbuf[i].urb) { + continue; + } + urb = usb_alloc_urb(FRAMES_PER_DESC, GFP_KERNEL); + if (!urb) { + for (j = 0; j < i; j++) + usb_free_urb(cam->sbuf[j].urb); + for (j = 0; j < NUM_SBUF; j++) { + kfree(cam->sbuf[j].data); + cam->sbuf[j].data = NULL; + } + return -ENOMEM; + } + + cam->sbuf[i].urb = urb; + urb->dev = cam->dev; + urb->context = cam; + urb->pipe = usb_rcvisocpipe(cam->dev, 1 /*ISOC endpoint*/); + urb->transfer_flags = URB_ISO_ASAP; + urb->transfer_buffer = cam->sbuf[i].data; + urb->complete = cpia2_usb_complete; + urb->number_of_packets = FRAMES_PER_DESC; + urb->interval = 1; + urb->transfer_buffer_length = + FRAME_SIZE_PER_DESC * FRAMES_PER_DESC; + + for (fx = 0; fx < FRAMES_PER_DESC; fx++) { + urb->iso_frame_desc[fx].offset = + FRAME_SIZE_PER_DESC * fx; + urb->iso_frame_desc[fx].length = FRAME_SIZE_PER_DESC; + } + } + + + /* Queue the ISO urbs, and resubmit in the completion handler */ + for(i=0; i<NUM_SBUF; ++i) { + err = usb_submit_urb(cam->sbuf[i].urb, GFP_KERNEL); + if (err) { + ERR("usb_submit_urb[%d]() = %d\n", i, err); + return err; + } + } + + return 0; +} + +/****************************************************************************** + * + * cpia2_usb_stream_start + * + *****************************************************************************/ +int cpia2_usb_stream_start(struct camera_data *cam, unsigned int alternate) +{ + int ret; + int old_alt; + + if(cam->streaming) + return 0; + + if (cam->flush) { + int i; + DBG("Flushing buffers\n"); + for(i=0; i<cam->num_frames; ++i) { + cam->buffers[i].status = FRAME_EMPTY; + cam->buffers[i].length = 0; + } + cam->curbuff = &cam->buffers[0]; + cam->workbuff = cam->curbuff->next; + cam->flush = false; + } + + old_alt = cam->params.camera_state.stream_mode; + cam->params.camera_state.stream_mode = 0; + ret = cpia2_usb_change_streaming_alternate(cam, alternate); + if (ret < 0) { + int ret2; + ERR("cpia2_usb_change_streaming_alternate() = %d!\n", ret); + cam->params.camera_state.stream_mode = old_alt; + ret2 = set_alternate(cam, USBIF_CMDONLY); + if (ret2 < 0) { + ERR("cpia2_usb_change_streaming_alternate(%d) =%d has already failed. Then tried to call set_alternate(USBIF_CMDONLY) = %d.\n", + alternate, ret, ret2); + } + } else { + cam->frame_count = 0; + cam->streaming = 1; + ret = cpia2_usb_stream_resume(cam); + } + return ret; +} + +/****************************************************************************** + * + * cpia2_usb_stream_pause + * + *****************************************************************************/ +int cpia2_usb_stream_pause(struct camera_data *cam) +{ + int ret = 0; + if(cam->streaming) { + free_sbufs(cam); + ret = set_alternate(cam, USBIF_CMDONLY); + } + return ret; +} + +/****************************************************************************** + * + * cpia2_usb_stream_resume + * + *****************************************************************************/ +int cpia2_usb_stream_resume(struct camera_data *cam) +{ + int ret = 0; + if(cam->streaming) { + cam->first_image_seen = 0; + ret = set_alternate(cam, cam->params.camera_state.stream_mode); + if(ret == 0) { + /* for some reason the user effects need to be set + again when starting streaming. */ + cpia2_do_command(cam, CPIA2_CMD_SET_USER_EFFECTS, TRANSFER_WRITE, + cam->params.vp_params.user_effects); + ret = submit_urbs(cam); + } + } + return ret; +} + +/****************************************************************************** + * + * cpia2_usb_stream_stop + * + *****************************************************************************/ +int cpia2_usb_stream_stop(struct camera_data *cam) +{ + int ret; + + ret = cpia2_usb_stream_pause(cam); + cam->streaming = 0; + configure_transfer_mode(cam, 0); + return ret; +} + +/****************************************************************************** + * + * cpia2_usb_probe + * + * Probe and initialize. + *****************************************************************************/ +static int cpia2_usb_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct usb_device *udev = interface_to_usbdev(intf); + struct usb_interface_descriptor *interface; + struct camera_data *cam; + int ret; + + /* A multi-config CPiA2 camera? */ + if (udev->descriptor.bNumConfigurations != 1) + return -ENODEV; + interface = &intf->cur_altsetting->desc; + + /* If we get to this point, we found a CPiA2 camera */ + LOG("CPiA2 USB camera found\n"); + + cam = cpia2_init_camera_struct(intf); + if (cam == NULL) + return -ENOMEM; + + cam->dev = udev; + cam->iface = interface->bInterfaceNumber; + + ret = set_alternate(cam, USBIF_CMDONLY); + if (ret < 0) { + ERR("%s: usb_set_interface error (ret = %d)\n", __func__, ret); + goto alt_err; + } + + + if((ret = cpia2_init_camera(cam)) < 0) { + ERR("%s: failed to initialize cpia2 camera (ret = %d)\n", __func__, ret); + goto alt_err; + } + LOG(" CPiA Version: %d.%02d (%d.%d)\n", + cam->params.version.firmware_revision_hi, + cam->params.version.firmware_revision_lo, + cam->params.version.asic_id, + cam->params.version.asic_rev); + LOG(" CPiA PnP-ID: %04x:%04x:%04x\n", + cam->params.pnp_id.vendor, + cam->params.pnp_id.product, + cam->params.pnp_id.device_revision); + LOG(" SensorID: %d.(version %d)\n", + cam->params.version.sensor_flags, + cam->params.version.sensor_rev); + + usb_set_intfdata(intf, cam); + + ret = cpia2_register_camera(cam); + if (ret < 0) { + ERR("%s: Failed to register cpia2 camera (ret = %d)\n", __func__, ret); + goto alt_err; + } + + return 0; + +alt_err: + cpia2_deinit_camera_struct(cam, intf); + return ret; +} + +/****************************************************************************** + * + * cpia2_disconnect + * + *****************************************************************************/ +static void cpia2_usb_disconnect(struct usb_interface *intf) +{ + struct camera_data *cam = usb_get_intfdata(intf); + usb_set_intfdata(intf, NULL); + + DBG("Stopping stream\n"); + cpia2_usb_stream_stop(cam); + + mutex_lock(&cam->v4l2_lock); + DBG("Unregistering camera\n"); + cpia2_unregister_camera(cam); + v4l2_device_disconnect(&cam->v4l2_dev); + mutex_unlock(&cam->v4l2_lock); + + if(cam->buffers) { + DBG("Wakeup waiting processes\n"); + cam->curbuff->status = FRAME_READY; + cam->curbuff->length = 0; + wake_up_interruptible(&cam->wq_stream); + } + + v4l2_device_put(&cam->v4l2_dev); + + LOG("CPiA2 camera disconnected.\n"); +} + +static int cpia2_usb_suspend(struct usb_interface *intf, pm_message_t message) +{ + struct camera_data *cam = usb_get_intfdata(intf); + + mutex_lock(&cam->v4l2_lock); + if (cam->streaming) { + cpia2_usb_stream_stop(cam); + cam->streaming = 1; + } + mutex_unlock(&cam->v4l2_lock); + + dev_info(&intf->dev, "going into suspend..\n"); + return 0; +} + +/* Resume device - start device. */ +static int cpia2_usb_resume(struct usb_interface *intf) +{ + struct camera_data *cam = usb_get_intfdata(intf); + + mutex_lock(&cam->v4l2_lock); + v4l2_ctrl_handler_setup(&cam->hdl); + if (cam->streaming) { + cam->streaming = 0; + cpia2_usb_stream_start(cam, + cam->params.camera_state.stream_mode); + } + mutex_unlock(&cam->v4l2_lock); + + dev_info(&intf->dev, "coming out of suspend..\n"); + return 0; +} + +/****************************************************************************** + * + * usb_cpia2_init + * + *****************************************************************************/ +int cpia2_usb_init(void) +{ + return usb_register(&cpia2_driver); +} + +/****************************************************************************** + * + * usb_cpia_cleanup + * + *****************************************************************************/ +void cpia2_usb_cleanup(void) +{ + schedule_timeout(2 * HZ); + usb_deregister(&cpia2_driver); +} diff --git a/drivers/media/usb/cpia2/cpia2_v4l.c b/drivers/media/usb/cpia2/cpia2_v4l.c new file mode 100644 index 000000000..d47318958 --- /dev/null +++ b/drivers/media/usb/cpia2/cpia2_v4l.c @@ -0,0 +1,1263 @@ +/**************************************************************************** + * + * Filename: cpia2_v4l.c + * + * Copyright 2001, STMicrolectronics, Inc. + * Contact: steve.miller@st.com + * Copyright 2001,2005, Scott J. Bertin <scottbertin@yahoo.com> + * + * Description: + * This is a USB driver for CPia2 based video cameras. + * The infrastructure of this driver is based on the cpia usb driver by + * Jochen Scharrlach and Johannes Erdfeldt. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Stripped of 2.4 stuff ready for main kernel submit by + * Alan Cox <alan@lxorguk.ukuu.org.uk> + ****************************************************************************/ + +#define CPIA_VERSION "3.0.1" + +#include <linux/module.h> +#include <linux/time.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/videodev2.h> +#include <linux/stringify.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-event.h> + +#include "cpia2.h" + +static int video_nr = -1; +module_param(video_nr, int, 0); +MODULE_PARM_DESC(video_nr, "video device to register (0=/dev/video0, etc)"); + +static int buffer_size = 68 * 1024; +module_param(buffer_size, int, 0); +MODULE_PARM_DESC(buffer_size, "Size for each frame buffer in bytes (default 68k)"); + +static int num_buffers = 3; +module_param(num_buffers, int, 0); +MODULE_PARM_DESC(num_buffers, "Number of frame buffers (1-" + __stringify(VIDEO_MAX_FRAME) ", default 3)"); + +static int alternate = DEFAULT_ALT; +module_param(alternate, int, 0); +MODULE_PARM_DESC(alternate, "USB Alternate (" __stringify(USBIF_ISO_1) "-" + __stringify(USBIF_ISO_6) ", default " + __stringify(DEFAULT_ALT) ")"); + +static int flicker_mode; +module_param(flicker_mode, int, 0); +MODULE_PARM_DESC(flicker_mode, "Flicker frequency (0 (disabled), " __stringify(50) " or " + __stringify(60) ", default 0)"); + +MODULE_AUTHOR("Steve Miller (STMicroelectronics) <steve.miller@st.com>"); +MODULE_DESCRIPTION("V4L-driver for STMicroelectronics CPiA2 based cameras"); +MODULE_SUPPORTED_DEVICE("video"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(CPIA_VERSION); + +#define ABOUT "V4L-Driver for Vision CPiA2 based cameras" +#define CPIA2_CID_USB_ALT (V4L2_CID_USER_BASE | 0xf000) + +/****************************************************************************** + * + * cpia2_open + * + *****************************************************************************/ +static int cpia2_open(struct file *file) +{ + struct camera_data *cam = video_drvdata(file); + int retval; + + if (mutex_lock_interruptible(&cam->v4l2_lock)) + return -ERESTARTSYS; + retval = v4l2_fh_open(file); + if (retval) + goto open_unlock; + + if (v4l2_fh_is_singular_file(file)) { + if (cpia2_allocate_buffers(cam)) { + v4l2_fh_release(file); + retval = -ENOMEM; + goto open_unlock; + } + + /* reset the camera */ + if (cpia2_reset_camera(cam) < 0) { + v4l2_fh_release(file); + retval = -EIO; + goto open_unlock; + } + + cam->APP_len = 0; + cam->COM_len = 0; + } + + cpia2_dbg_dump_registers(cam); +open_unlock: + mutex_unlock(&cam->v4l2_lock); + return retval; +} + +/****************************************************************************** + * + * cpia2_close + * + *****************************************************************************/ +static int cpia2_close(struct file *file) +{ + struct video_device *dev = video_devdata(file); + struct camera_data *cam = video_get_drvdata(dev); + + mutex_lock(&cam->v4l2_lock); + if (video_is_registered(&cam->vdev) && v4l2_fh_is_singular_file(file)) { + cpia2_usb_stream_stop(cam); + + /* save camera state for later open */ + cpia2_save_camera_state(cam); + + cpia2_set_low_power(cam); + cpia2_free_buffers(cam); + } + + if (cam->stream_fh == file->private_data) { + cam->stream_fh = NULL; + cam->mmapped = 0; + } + mutex_unlock(&cam->v4l2_lock); + return v4l2_fh_release(file); +} + +/****************************************************************************** + * + * cpia2_v4l_read + * + *****************************************************************************/ +static ssize_t cpia2_v4l_read(struct file *file, char __user *buf, size_t count, + loff_t *off) +{ + struct camera_data *cam = video_drvdata(file); + int noblock = file->f_flags&O_NONBLOCK; + ssize_t ret; + + if(!cam) + return -EINVAL; + + if (mutex_lock_interruptible(&cam->v4l2_lock)) + return -ERESTARTSYS; + ret = cpia2_read(cam, buf, count, noblock); + mutex_unlock(&cam->v4l2_lock); + return ret; +} + + +/****************************************************************************** + * + * cpia2_v4l_poll + * + *****************************************************************************/ +static __poll_t cpia2_v4l_poll(struct file *filp, struct poll_table_struct *wait) +{ + struct camera_data *cam = video_drvdata(filp); + __poll_t res; + + mutex_lock(&cam->v4l2_lock); + res = cpia2_poll(cam, filp, wait); + mutex_unlock(&cam->v4l2_lock); + return res; +} + + +static int sync(struct camera_data *cam, int frame_nr) +{ + struct framebuf *frame = &cam->buffers[frame_nr]; + + while (1) { + if (frame->status == FRAME_READY) + return 0; + + if (!cam->streaming) { + frame->status = FRAME_READY; + frame->length = 0; + return 0; + } + + mutex_unlock(&cam->v4l2_lock); + wait_event_interruptible(cam->wq_stream, + !cam->streaming || + frame->status == FRAME_READY); + mutex_lock(&cam->v4l2_lock); + if (signal_pending(current)) + return -ERESTARTSYS; + if (!video_is_registered(&cam->vdev)) + return -ENOTTY; + } +} + +/****************************************************************************** + * + * ioctl_querycap + * + * V4L2 device capabilities + * + *****************************************************************************/ + +static int cpia2_querycap(struct file *file, void *fh, struct v4l2_capability *vc) +{ + struct camera_data *cam = video_drvdata(file); + + strcpy(vc->driver, "cpia2"); + + if (cam->params.pnp_id.product == 0x151) + strcpy(vc->card, "QX5 Microscope"); + else + strcpy(vc->card, "CPiA2 Camera"); + switch (cam->params.pnp_id.device_type) { + case DEVICE_STV_672: + strcat(vc->card, " (672/"); + break; + case DEVICE_STV_676: + strcat(vc->card, " (676/"); + break; + default: + strcat(vc->card, " (XXX/"); + break; + } + switch (cam->params.version.sensor_flags) { + case CPIA2_VP_SENSOR_FLAGS_404: + strcat(vc->card, "404)"); + break; + case CPIA2_VP_SENSOR_FLAGS_407: + strcat(vc->card, "407)"); + break; + case CPIA2_VP_SENSOR_FLAGS_409: + strcat(vc->card, "409)"); + break; + case CPIA2_VP_SENSOR_FLAGS_410: + strcat(vc->card, "410)"); + break; + case CPIA2_VP_SENSOR_FLAGS_500: + strcat(vc->card, "500)"); + break; + default: + strcat(vc->card, "XXX)"); + break; + } + + if (usb_make_path(cam->dev, vc->bus_info, sizeof(vc->bus_info)) <0) + memset(vc->bus_info,0, sizeof(vc->bus_info)); + + vc->device_caps = V4L2_CAP_VIDEO_CAPTURE | + V4L2_CAP_READWRITE | + V4L2_CAP_STREAMING; + vc->capabilities = vc->device_caps | + V4L2_CAP_DEVICE_CAPS; + + return 0; +} + +/****************************************************************************** + * + * ioctl_input + * + * V4L2 input get/set/enumerate + * + *****************************************************************************/ + +static int cpia2_enum_input(struct file *file, void *fh, struct v4l2_input *i) +{ + if (i->index) + return -EINVAL; + strcpy(i->name, "Camera"); + i->type = V4L2_INPUT_TYPE_CAMERA; + return 0; +} + +static int cpia2_g_input(struct file *file, void *fh, unsigned int *i) +{ + *i = 0; + return 0; +} + +static int cpia2_s_input(struct file *file, void *fh, unsigned int i) +{ + return i ? -EINVAL : 0; +} + +/****************************************************************************** + * + * ioctl_enum_fmt + * + * V4L2 format enumerate + * + *****************************************************************************/ + +static int cpia2_enum_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_fmtdesc *f) +{ + int index = f->index; + + if (index < 0 || index > 1) + return -EINVAL; + + memset(f, 0, sizeof(*f)); + f->index = index; + f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + f->flags = V4L2_FMT_FLAG_COMPRESSED; + switch(index) { + case 0: + strcpy(f->description, "MJPEG"); + f->pixelformat = V4L2_PIX_FMT_MJPEG; + break; + case 1: + strcpy(f->description, "JPEG"); + f->pixelformat = V4L2_PIX_FMT_JPEG; + break; + default: + return -EINVAL; + } + + return 0; +} + +/****************************************************************************** + * + * ioctl_try_fmt + * + * V4L2 format try + * + *****************************************************************************/ + +static int cpia2_try_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct camera_data *cam = video_drvdata(file); + + if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG && + f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG) + return -EINVAL; + + f->fmt.pix.field = V4L2_FIELD_NONE; + f->fmt.pix.bytesperline = 0; + f->fmt.pix.sizeimage = cam->frame_size; + f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; + f->fmt.pix.priv = 0; + + switch (cpia2_match_video_size(f->fmt.pix.width, f->fmt.pix.height)) { + case VIDEOSIZE_VGA: + f->fmt.pix.width = 640; + f->fmt.pix.height = 480; + break; + case VIDEOSIZE_CIF: + f->fmt.pix.width = 352; + f->fmt.pix.height = 288; + break; + case VIDEOSIZE_QVGA: + f->fmt.pix.width = 320; + f->fmt.pix.height = 240; + break; + case VIDEOSIZE_288_216: + f->fmt.pix.width = 288; + f->fmt.pix.height = 216; + break; + case VIDEOSIZE_256_192: + f->fmt.pix.width = 256; + f->fmt.pix.height = 192; + break; + case VIDEOSIZE_224_168: + f->fmt.pix.width = 224; + f->fmt.pix.height = 168; + break; + case VIDEOSIZE_192_144: + f->fmt.pix.width = 192; + f->fmt.pix.height = 144; + break; + case VIDEOSIZE_QCIF: + default: + f->fmt.pix.width = 176; + f->fmt.pix.height = 144; + break; + } + + return 0; +} + +/****************************************************************************** + * + * ioctl_set_fmt + * + * V4L2 format set + * + *****************************************************************************/ + +static int cpia2_s_fmt_vid_cap(struct file *file, void *_fh, + struct v4l2_format *f) +{ + struct camera_data *cam = video_drvdata(file); + int err, frame; + + err = cpia2_try_fmt_vid_cap(file, _fh, f); + if(err != 0) + return err; + + cam->pixelformat = f->fmt.pix.pixelformat; + + /* NOTE: This should be set to 1 for MJPEG, but some apps don't handle + * the missing Huffman table properly. */ + cam->params.compression.inhibit_htables = 0; + /*f->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG;*/ + + /* we set the video window to something smaller or equal to what + * is requested by the user??? + */ + DBG("Requested width = %d, height = %d\n", + f->fmt.pix.width, f->fmt.pix.height); + if (f->fmt.pix.width != cam->width || + f->fmt.pix.height != cam->height) { + cam->width = f->fmt.pix.width; + cam->height = f->fmt.pix.height; + cam->params.roi.width = f->fmt.pix.width; + cam->params.roi.height = f->fmt.pix.height; + cpia2_set_format(cam); + } + + for (frame = 0; frame < cam->num_frames; ++frame) { + if (cam->buffers[frame].status == FRAME_READING) + if ((err = sync(cam, frame)) < 0) + return err; + + cam->buffers[frame].status = FRAME_EMPTY; + } + + return 0; +} + +/****************************************************************************** + * + * ioctl_get_fmt + * + * V4L2 format get + * + *****************************************************************************/ + +static int cpia2_g_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct camera_data *cam = video_drvdata(file); + + f->fmt.pix.width = cam->width; + f->fmt.pix.height = cam->height; + f->fmt.pix.pixelformat = cam->pixelformat; + f->fmt.pix.field = V4L2_FIELD_NONE; + f->fmt.pix.bytesperline = 0; + f->fmt.pix.sizeimage = cam->frame_size; + f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; + f->fmt.pix.priv = 0; + + return 0; +} + +/****************************************************************************** + * + * ioctl_cropcap + * + * V4L2 query cropping capabilities + * NOTE: cropping is currently disabled + * + *****************************************************************************/ + +static int cpia2_cropcap(struct file *file, void *fh, struct v4l2_cropcap *c) +{ + struct camera_data *cam = video_drvdata(file); + + if (c->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + c->bounds.left = 0; + c->bounds.top = 0; + c->bounds.width = cam->width; + c->bounds.height = cam->height; + c->defrect.left = 0; + c->defrect.top = 0; + c->defrect.width = cam->width; + c->defrect.height = cam->height; + c->pixelaspect.numerator = 1; + c->pixelaspect.denominator = 1; + + return 0; +} + +struct framerate_info { + int value; + struct v4l2_fract period; +}; + +static const struct framerate_info framerate_controls[] = { + { CPIA2_VP_FRAMERATE_6_25, { 4, 25 } }, + { CPIA2_VP_FRAMERATE_7_5, { 2, 15 } }, + { CPIA2_VP_FRAMERATE_12_5, { 2, 25 } }, + { CPIA2_VP_FRAMERATE_15, { 1, 15 } }, + { CPIA2_VP_FRAMERATE_25, { 1, 25 } }, + { CPIA2_VP_FRAMERATE_30, { 1, 30 } }, +}; + +static int cpia2_g_parm(struct file *file, void *fh, struct v4l2_streamparm *p) +{ + struct camera_data *cam = video_drvdata(file); + struct v4l2_captureparm *cap = &p->parm.capture; + int i; + + if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + cap->capability = V4L2_CAP_TIMEPERFRAME; + cap->readbuffers = cam->num_frames; + for (i = 0; i < ARRAY_SIZE(framerate_controls); i++) + if (cam->params.vp_params.frame_rate == framerate_controls[i].value) { + cap->timeperframe = framerate_controls[i].period; + break; + } + return 0; +} + +static int cpia2_s_parm(struct file *file, void *fh, struct v4l2_streamparm *p) +{ + struct camera_data *cam = video_drvdata(file); + struct v4l2_captureparm *cap = &p->parm.capture; + struct v4l2_fract tpf = cap->timeperframe; + int max = ARRAY_SIZE(framerate_controls) - 1; + int ret; + int i; + + ret = cpia2_g_parm(file, fh, p); + if (ret || !tpf.denominator || !tpf.numerator) + return ret; + + /* Maximum 15 fps for this model */ + if (cam->params.pnp_id.device_type == DEVICE_STV_672 && + cam->params.version.sensor_flags == CPIA2_VP_SENSOR_FLAGS_500) + max -= 2; + for (i = 0; i <= max; i++) { + struct v4l2_fract f1 = tpf; + struct v4l2_fract f2 = framerate_controls[i].period; + + f1.numerator *= f2.denominator; + f2.numerator *= f1.denominator; + if (f1.numerator >= f2.numerator) + break; + } + if (i > max) + i = max; + cap->timeperframe = framerate_controls[i].period; + return cpia2_set_fps(cam, framerate_controls[i].value); +} + +static const struct { + u32 width; + u32 height; +} cpia2_framesizes[] = { + { 640, 480 }, + { 352, 288 }, + { 320, 240 }, + { 288, 216 }, + { 256, 192 }, + { 224, 168 }, + { 192, 144 }, + { 176, 144 }, +}; + +static int cpia2_enum_framesizes(struct file *file, void *fh, + struct v4l2_frmsizeenum *fsize) +{ + + if (fsize->pixel_format != V4L2_PIX_FMT_MJPEG && + fsize->pixel_format != V4L2_PIX_FMT_JPEG) + return -EINVAL; + if (fsize->index >= ARRAY_SIZE(cpia2_framesizes)) + return -EINVAL; + fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; + fsize->discrete.width = cpia2_framesizes[fsize->index].width; + fsize->discrete.height = cpia2_framesizes[fsize->index].height; + + return 0; +} + +static int cpia2_enum_frameintervals(struct file *file, void *fh, + struct v4l2_frmivalenum *fival) +{ + struct camera_data *cam = video_drvdata(file); + int max = ARRAY_SIZE(framerate_controls) - 1; + int i; + + if (fival->pixel_format != V4L2_PIX_FMT_MJPEG && + fival->pixel_format != V4L2_PIX_FMT_JPEG) + return -EINVAL; + + /* Maximum 15 fps for this model */ + if (cam->params.pnp_id.device_type == DEVICE_STV_672 && + cam->params.version.sensor_flags == CPIA2_VP_SENSOR_FLAGS_500) + max -= 2; + if (fival->index > max) + return -EINVAL; + for (i = 0; i < ARRAY_SIZE(cpia2_framesizes); i++) + if (fival->width == cpia2_framesizes[i].width && + fival->height == cpia2_framesizes[i].height) + break; + if (i == ARRAY_SIZE(cpia2_framesizes)) + return -EINVAL; + fival->type = V4L2_FRMIVAL_TYPE_DISCRETE; + fival->discrete = framerate_controls[fival->index].period; + return 0; +} + +/****************************************************************************** + * + * ioctl_s_ctrl + * + * V4L2 set the value of a control variable + * + *****************************************************************************/ + +static int cpia2_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct camera_data *cam = + container_of(ctrl->handler, struct camera_data, hdl); + static const int flicker_table[] = { + NEVER_FLICKER, + FLICKER_50, + FLICKER_60, + }; + + DBG("Set control id:%d, value:%d\n", ctrl->id, ctrl->val); + + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + cpia2_set_brightness(cam, ctrl->val); + break; + case V4L2_CID_CONTRAST: + cpia2_set_contrast(cam, ctrl->val); + break; + case V4L2_CID_SATURATION: + cpia2_set_saturation(cam, ctrl->val); + break; + case V4L2_CID_HFLIP: + cpia2_set_property_mirror(cam, ctrl->val); + break; + case V4L2_CID_VFLIP: + cpia2_set_property_flip(cam, ctrl->val); + break; + case V4L2_CID_POWER_LINE_FREQUENCY: + return cpia2_set_flicker_mode(cam, flicker_table[ctrl->val]); + case V4L2_CID_ILLUMINATORS_1: + return cpia2_set_gpio(cam, (cam->top_light->val << 6) | + (cam->bottom_light->val << 7)); + case V4L2_CID_JPEG_ACTIVE_MARKER: + cam->params.compression.inhibit_htables = + !(ctrl->val & V4L2_JPEG_ACTIVE_MARKER_DHT); + break; + case V4L2_CID_JPEG_COMPRESSION_QUALITY: + cam->params.vc_params.quality = ctrl->val; + break; + case CPIA2_CID_USB_ALT: + cam->params.camera_state.stream_mode = ctrl->val; + break; + default: + return -EINVAL; + } + + return 0; +} + +/****************************************************************************** + * + * ioctl_g_jpegcomp + * + * V4L2 get the JPEG compression parameters + * + *****************************************************************************/ + +static int cpia2_g_jpegcomp(struct file *file, void *fh, struct v4l2_jpegcompression *parms) +{ + struct camera_data *cam = video_drvdata(file); + + memset(parms, 0, sizeof(*parms)); + + parms->quality = 80; // TODO: Can this be made meaningful? + + parms->jpeg_markers = V4L2_JPEG_MARKER_DQT | V4L2_JPEG_MARKER_DRI; + if(!cam->params.compression.inhibit_htables) { + parms->jpeg_markers |= V4L2_JPEG_MARKER_DHT; + } + + parms->APPn = cam->APPn; + parms->APP_len = cam->APP_len; + if(cam->APP_len > 0) { + memcpy(parms->APP_data, cam->APP_data, cam->APP_len); + parms->jpeg_markers |= V4L2_JPEG_MARKER_APP; + } + + parms->COM_len = cam->COM_len; + if(cam->COM_len > 0) { + memcpy(parms->COM_data, cam->COM_data, cam->COM_len); + parms->jpeg_markers |= JPEG_MARKER_COM; + } + + DBG("G_JPEGCOMP APP_len:%d COM_len:%d\n", + parms->APP_len, parms->COM_len); + + return 0; +} + +/****************************************************************************** + * + * ioctl_s_jpegcomp + * + * V4L2 set the JPEG compression parameters + * NOTE: quality and some jpeg_markers are ignored. + * + *****************************************************************************/ + +static int cpia2_s_jpegcomp(struct file *file, void *fh, + const struct v4l2_jpegcompression *parms) +{ + struct camera_data *cam = video_drvdata(file); + + DBG("S_JPEGCOMP APP_len:%d COM_len:%d\n", + parms->APP_len, parms->COM_len); + + cam->params.compression.inhibit_htables = + !(parms->jpeg_markers & V4L2_JPEG_MARKER_DHT); + + if(parms->APP_len != 0) { + if(parms->APP_len > 0 && + parms->APP_len <= sizeof(cam->APP_data) && + parms->APPn >= 0 && parms->APPn <= 15) { + cam->APPn = parms->APPn; + cam->APP_len = parms->APP_len; + memcpy(cam->APP_data, parms->APP_data, parms->APP_len); + } else { + LOG("Bad APPn Params n=%d len=%d\n", + parms->APPn, parms->APP_len); + return -EINVAL; + } + } else { + cam->APP_len = 0; + } + + if(parms->COM_len != 0) { + if(parms->COM_len > 0 && + parms->COM_len <= sizeof(cam->COM_data)) { + cam->COM_len = parms->COM_len; + memcpy(cam->COM_data, parms->COM_data, parms->COM_len); + } else { + LOG("Bad COM_len=%d\n", parms->COM_len); + return -EINVAL; + } + } + + return 0; +} + +/****************************************************************************** + * + * ioctl_reqbufs + * + * V4L2 Initiate memory mapping. + * NOTE: The user's request is ignored. For now the buffers are fixed. + * + *****************************************************************************/ + +static int cpia2_reqbufs(struct file *file, void *fh, struct v4l2_requestbuffers *req) +{ + struct camera_data *cam = video_drvdata(file); + + if(req->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + req->memory != V4L2_MEMORY_MMAP) + return -EINVAL; + + DBG("REQBUFS requested:%d returning:%d\n", req->count, cam->num_frames); + req->count = cam->num_frames; + memset(&req->reserved, 0, sizeof(req->reserved)); + + return 0; +} + +/****************************************************************************** + * + * ioctl_querybuf + * + * V4L2 Query memory buffer status. + * + *****************************************************************************/ + +static int cpia2_querybuf(struct file *file, void *fh, struct v4l2_buffer *buf) +{ + struct camera_data *cam = video_drvdata(file); + + if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + buf->index >= cam->num_frames) + return -EINVAL; + + buf->m.offset = cam->buffers[buf->index].data - cam->frame_buffer; + buf->length = cam->frame_size; + + buf->memory = V4L2_MEMORY_MMAP; + + if(cam->mmapped) + buf->flags = V4L2_BUF_FLAG_MAPPED; + else + buf->flags = 0; + + buf->flags |= V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + + switch (cam->buffers[buf->index].status) { + case FRAME_EMPTY: + case FRAME_ERROR: + case FRAME_READING: + buf->bytesused = 0; + buf->flags = V4L2_BUF_FLAG_QUEUED; + break; + case FRAME_READY: + buf->bytesused = cam->buffers[buf->index].length; + buf->timestamp = cam->buffers[buf->index].timestamp; + buf->sequence = cam->buffers[buf->index].seq; + buf->flags = V4L2_BUF_FLAG_DONE; + break; + } + + DBG("QUERYBUF index:%d offset:%d flags:%d seq:%d bytesused:%d\n", + buf->index, buf->m.offset, buf->flags, buf->sequence, + buf->bytesused); + + return 0; +} + +/****************************************************************************** + * + * ioctl_qbuf + * + * V4L2 User is freeing buffer + * + *****************************************************************************/ + +static int cpia2_qbuf(struct file *file, void *fh, struct v4l2_buffer *buf) +{ + struct camera_data *cam = video_drvdata(file); + + if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + buf->memory != V4L2_MEMORY_MMAP || + buf->index >= cam->num_frames) + return -EINVAL; + + DBG("QBUF #%d\n", buf->index); + + if(cam->buffers[buf->index].status == FRAME_READY) + cam->buffers[buf->index].status = FRAME_EMPTY; + + return 0; +} + +/****************************************************************************** + * + * find_earliest_filled_buffer + * + * Helper for ioctl_dqbuf. Find the next ready buffer. + * + *****************************************************************************/ + +static int find_earliest_filled_buffer(struct camera_data *cam) +{ + int i; + int found = -1; + for (i=0; i<cam->num_frames; i++) { + if(cam->buffers[i].status == FRAME_READY) { + if(found < 0) { + found = i; + } else { + /* find which buffer is earlier */ + struct timeval *tv1, *tv2; + tv1 = &cam->buffers[i].timestamp; + tv2 = &cam->buffers[found].timestamp; + if(tv1->tv_sec < tv2->tv_sec || + (tv1->tv_sec == tv2->tv_sec && + tv1->tv_usec < tv2->tv_usec)) + found = i; + } + } + } + return found; +} + +/****************************************************************************** + * + * ioctl_dqbuf + * + * V4L2 User is asking for a filled buffer. + * + *****************************************************************************/ + +static int cpia2_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf) +{ + struct camera_data *cam = video_drvdata(file); + int frame; + + if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + buf->memory != V4L2_MEMORY_MMAP) + return -EINVAL; + + frame = find_earliest_filled_buffer(cam); + + if(frame < 0 && file->f_flags&O_NONBLOCK) + return -EAGAIN; + + if(frame < 0) { + /* Wait for a frame to become available */ + struct framebuf *cb=cam->curbuff; + mutex_unlock(&cam->v4l2_lock); + wait_event_interruptible(cam->wq_stream, + !video_is_registered(&cam->vdev) || + (cb=cam->curbuff)->status == FRAME_READY); + mutex_lock(&cam->v4l2_lock); + if (signal_pending(current)) + return -ERESTARTSYS; + if (!video_is_registered(&cam->vdev)) + return -ENOTTY; + frame = cb->num; + } + + + buf->index = frame; + buf->bytesused = cam->buffers[buf->index].length; + buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_DONE + | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + buf->field = V4L2_FIELD_NONE; + buf->timestamp = cam->buffers[buf->index].timestamp; + buf->sequence = cam->buffers[buf->index].seq; + buf->m.offset = cam->buffers[buf->index].data - cam->frame_buffer; + buf->length = cam->frame_size; + buf->reserved2 = 0; + buf->reserved = 0; + memset(&buf->timecode, 0, sizeof(buf->timecode)); + + DBG("DQBUF #%d status:%d seq:%d length:%d\n", buf->index, + cam->buffers[buf->index].status, buf->sequence, buf->bytesused); + + return 0; +} + +static int cpia2_streamon(struct file *file, void *fh, enum v4l2_buf_type type) +{ + struct camera_data *cam = video_drvdata(file); + int ret = -EINVAL; + + DBG("VIDIOC_STREAMON, streaming=%d\n", cam->streaming); + if (!cam->mmapped || type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + if (!cam->streaming) { + ret = cpia2_usb_stream_start(cam, + cam->params.camera_state.stream_mode); + if (!ret) + v4l2_ctrl_grab(cam->usb_alt, true); + } + return ret; +} + +static int cpia2_streamoff(struct file *file, void *fh, enum v4l2_buf_type type) +{ + struct camera_data *cam = video_drvdata(file); + int ret = -EINVAL; + + DBG("VIDIOC_STREAMOFF, streaming=%d\n", cam->streaming); + if (!cam->mmapped || type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + if (cam->streaming) { + ret = cpia2_usb_stream_stop(cam); + if (!ret) + v4l2_ctrl_grab(cam->usb_alt, false); + } + return ret; +} + +/****************************************************************************** + * + * cpia2_mmap + * + *****************************************************************************/ +static int cpia2_mmap(struct file *file, struct vm_area_struct *area) +{ + struct camera_data *cam = video_drvdata(file); + int retval; + + if (mutex_lock_interruptible(&cam->v4l2_lock)) + return -ERESTARTSYS; + retval = cpia2_remap_buffer(cam, area); + + if(!retval) + cam->stream_fh = file->private_data; + mutex_unlock(&cam->v4l2_lock); + return retval; +} + +/****************************************************************************** + * + * reset_camera_struct_v4l + * + * Sets all values to the defaults + *****************************************************************************/ +static void reset_camera_struct_v4l(struct camera_data *cam) +{ + cam->width = cam->params.roi.width; + cam->height = cam->params.roi.height; + + cam->frame_size = buffer_size; + cam->num_frames = num_buffers; + + /* Flicker modes */ + cam->params.flicker_control.flicker_mode_req = flicker_mode; + + /* stream modes */ + cam->params.camera_state.stream_mode = alternate; + + cam->pixelformat = V4L2_PIX_FMT_JPEG; +} + +static const struct v4l2_ioctl_ops cpia2_ioctl_ops = { + .vidioc_querycap = cpia2_querycap, + .vidioc_enum_input = cpia2_enum_input, + .vidioc_g_input = cpia2_g_input, + .vidioc_s_input = cpia2_s_input, + .vidioc_enum_fmt_vid_cap = cpia2_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = cpia2_g_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = cpia2_s_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = cpia2_try_fmt_vid_cap, + .vidioc_g_jpegcomp = cpia2_g_jpegcomp, + .vidioc_s_jpegcomp = cpia2_s_jpegcomp, + .vidioc_cropcap = cpia2_cropcap, + .vidioc_reqbufs = cpia2_reqbufs, + .vidioc_querybuf = cpia2_querybuf, + .vidioc_qbuf = cpia2_qbuf, + .vidioc_dqbuf = cpia2_dqbuf, + .vidioc_streamon = cpia2_streamon, + .vidioc_streamoff = cpia2_streamoff, + .vidioc_s_parm = cpia2_s_parm, + .vidioc_g_parm = cpia2_g_parm, + .vidioc_enum_framesizes = cpia2_enum_framesizes, + .vidioc_enum_frameintervals = cpia2_enum_frameintervals, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +/*** + * The v4l video device structure initialized for this device + ***/ +static const struct v4l2_file_operations cpia2_fops = { + .owner = THIS_MODULE, + .open = cpia2_open, + .release = cpia2_close, + .read = cpia2_v4l_read, + .poll = cpia2_v4l_poll, + .unlocked_ioctl = video_ioctl2, + .mmap = cpia2_mmap, +}; + +static const struct video_device cpia2_template = { + /* I could not find any place for the old .initialize initializer?? */ + .name = "CPiA2 Camera", + .fops = &cpia2_fops, + .ioctl_ops = &cpia2_ioctl_ops, + .release = video_device_release_empty, +}; + +void cpia2_camera_release(struct v4l2_device *v4l2_dev) +{ + struct camera_data *cam = + container_of(v4l2_dev, struct camera_data, v4l2_dev); + + v4l2_ctrl_handler_free(&cam->hdl); + v4l2_device_unregister(&cam->v4l2_dev); + kfree(cam); +} + +static const struct v4l2_ctrl_ops cpia2_ctrl_ops = { + .s_ctrl = cpia2_s_ctrl, +}; + +/****************************************************************************** + * + * cpia2_register_camera + * + *****************************************************************************/ +int cpia2_register_camera(struct camera_data *cam) +{ + struct v4l2_ctrl_handler *hdl = &cam->hdl; + struct v4l2_ctrl_config cpia2_usb_alt = { + .ops = &cpia2_ctrl_ops, + .id = CPIA2_CID_USB_ALT, + .name = "USB Alternate", + .type = V4L2_CTRL_TYPE_INTEGER, + .min = USBIF_ISO_1, + .max = USBIF_ISO_6, + .step = 1, + }; + int ret; + + v4l2_ctrl_handler_init(hdl, 12); + v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_BRIGHTNESS, + cam->params.pnp_id.device_type == DEVICE_STV_672 ? 1 : 0, + 255, 1, DEFAULT_BRIGHTNESS); + v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_CONTRAST, 0, 255, 1, DEFAULT_CONTRAST); + v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_SATURATION, 0, 255, 1, DEFAULT_SATURATION); + v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_JPEG_ACTIVE_MARKER, 0, + V4L2_JPEG_ACTIVE_MARKER_DHT, 0, + V4L2_JPEG_ACTIVE_MARKER_DHT); + v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_JPEG_COMPRESSION_QUALITY, 1, + 100, 1, 100); + cpia2_usb_alt.def = alternate; + cam->usb_alt = v4l2_ctrl_new_custom(hdl, &cpia2_usb_alt, NULL); + /* VP5 Only */ + if (cam->params.pnp_id.device_type != DEVICE_STV_672) + v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + /* Flicker control only valid for 672 */ + if (cam->params.pnp_id.device_type == DEVICE_STV_672) + v4l2_ctrl_new_std_menu(hdl, &cpia2_ctrl_ops, + V4L2_CID_POWER_LINE_FREQUENCY, + V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 0, 0); + /* Light control only valid for the QX5 Microscope */ + if (cam->params.pnp_id.product == 0x151) { + cam->top_light = v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_ILLUMINATORS_1, 0, 1, 1, 0); + cam->bottom_light = v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops, + V4L2_CID_ILLUMINATORS_2, 0, 1, 1, 0); + v4l2_ctrl_cluster(2, &cam->top_light); + } + + if (hdl->error) { + ret = hdl->error; + v4l2_ctrl_handler_free(hdl); + return ret; + } + + cam->vdev = cpia2_template; + video_set_drvdata(&cam->vdev, cam); + cam->vdev.lock = &cam->v4l2_lock; + cam->vdev.ctrl_handler = hdl; + cam->vdev.v4l2_dev = &cam->v4l2_dev; + + reset_camera_struct_v4l(cam); + + /* register v4l device */ + if (video_register_device(&cam->vdev, VFL_TYPE_GRABBER, video_nr) < 0) { + ERR("video_register_device failed\n"); + return -ENODEV; + } + + return 0; +} + +/****************************************************************************** + * + * cpia2_unregister_camera + * + *****************************************************************************/ +void cpia2_unregister_camera(struct camera_data *cam) +{ + video_unregister_device(&cam->vdev); +} + +/****************************************************************************** + * + * check_parameters + * + * Make sure that all user-supplied parameters are sensible + *****************************************************************************/ +static void __init check_parameters(void) +{ + if(buffer_size < PAGE_SIZE) { + buffer_size = PAGE_SIZE; + LOG("buffer_size too small, setting to %d\n", buffer_size); + } else if(buffer_size > 1024*1024) { + /* arbitrary upper limiit */ + buffer_size = 1024*1024; + LOG("buffer_size ridiculously large, setting to %d\n", + buffer_size); + } else { + buffer_size += PAGE_SIZE-1; + buffer_size &= ~(PAGE_SIZE-1); + } + + if(num_buffers < 1) { + num_buffers = 1; + LOG("num_buffers too small, setting to %d\n", num_buffers); + } else if(num_buffers > VIDEO_MAX_FRAME) { + num_buffers = VIDEO_MAX_FRAME; + LOG("num_buffers too large, setting to %d\n", num_buffers); + } + + if(alternate < USBIF_ISO_1 || alternate > USBIF_ISO_6) { + alternate = DEFAULT_ALT; + LOG("alternate specified is invalid, using %d\n", alternate); + } + + if (flicker_mode != 0 && flicker_mode != FLICKER_50 && flicker_mode != FLICKER_60) { + flicker_mode = 0; + LOG("Flicker mode specified is invalid, using %d\n", + flicker_mode); + } + + DBG("Using %d buffers, each %d bytes, alternate=%d\n", + num_buffers, buffer_size, alternate); +} + +/************ Module Stuff ***************/ + + +/****************************************************************************** + * + * cpia2_init/module_init + * + *****************************************************************************/ +static int __init cpia2_init(void) +{ + LOG("%s v%s\n", + ABOUT, CPIA_VERSION); + check_parameters(); + return cpia2_usb_init(); +} + + +/****************************************************************************** + * + * cpia2_exit/module_exit + * + *****************************************************************************/ +static void __exit cpia2_exit(void) +{ + cpia2_usb_cleanup(); + schedule_timeout(2 * HZ); +} + +module_init(cpia2_init); +module_exit(cpia2_exit); |