diff options
Diffstat (limited to 'drivers/media/usb/au0828/au0828-video.c')
| -rw-r--r-- | drivers/media/usb/au0828/au0828-video.c | 2049 |
1 files changed, 2049 insertions, 0 deletions
diff --git a/drivers/media/usb/au0828/au0828-video.c b/drivers/media/usb/au0828/au0828-video.c new file mode 100644 index 000000000..3e111f7f5 --- /dev/null +++ b/drivers/media/usb/au0828/au0828-video.c @@ -0,0 +1,2049 @@ +/* + * Auvitek AU0828 USB Bridge (Analog video support) + * + * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org> + * Copyright (C) 2005-2008 Auvitek International, Ltd. + * + * 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. + */ + +/* Developer Notes: + * + * The hardware scaler supported is unimplemented + * AC97 audio support is unimplemented (only i2s audio mode) + * + */ + +#include "au0828.h" +#include "au8522.h" + +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/device.h> +#include <media/v4l2-common.h> +#include <media/v4l2-mc.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-event.h> +#include <media/tuner.h> +#include "au0828-reg.h" + +static DEFINE_MUTEX(au0828_sysfs_lock); + +/* ------------------------------------------------------------------ + Videobuf operations + ------------------------------------------------------------------*/ + +static unsigned int isoc_debug; +module_param(isoc_debug, int, 0644); +MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); + +#define au0828_isocdbg(fmt, arg...) \ +do {\ + if (isoc_debug) { \ + pr_info("au0828 %s :"fmt, \ + __func__ , ##arg); \ + } \ + } while (0) + +static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val) +{ + if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl) + dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val); +} + +static inline void print_err_status(struct au0828_dev *dev, + int packet, int status) +{ + char *errmsg = "Unknown"; + + switch (status) { + case -ENOENT: + errmsg = "unlinked synchronously"; + break; + case -ECONNRESET: + errmsg = "unlinked asynchronously"; + break; + case -ENOSR: + errmsg = "Buffer error (overrun)"; + break; + case -EPIPE: + errmsg = "Stalled (device not responding)"; + break; + case -EOVERFLOW: + errmsg = "Babble (bad cable?)"; + break; + case -EPROTO: + errmsg = "Bit-stuff error (bad cable?)"; + break; + case -EILSEQ: + errmsg = "CRC/Timeout (could be anything)"; + break; + case -ETIME: + errmsg = "Device does not respond"; + break; + } + if (packet < 0) { + au0828_isocdbg("URB status %d [%s].\n", status, errmsg); + } else { + au0828_isocdbg("URB packet %d, status %d [%s].\n", + packet, status, errmsg); + } +} + +static int check_dev(struct au0828_dev *dev) +{ + if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) { + pr_info("v4l2 ioctl: device not present\n"); + return -ENODEV; + } + + if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) { + pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n"); + return -EIO; + } + return 0; +} + +/* + * IRQ callback, called by URB callback + */ +static void au0828_irq_callback(struct urb *urb) +{ + struct au0828_dmaqueue *dma_q = urb->context; + struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); + unsigned long flags = 0; + int i; + + switch (urb->status) { + case 0: /* success */ + case -ETIMEDOUT: /* NAK */ + break; + case -ECONNRESET: /* kill */ + case -ENOENT: + case -ESHUTDOWN: + au0828_isocdbg("au0828_irq_callback called: status kill\n"); + return; + default: /* unknown error */ + au0828_isocdbg("urb completion error %d.\n", urb->status); + break; + } + + /* Copy data from URB */ + spin_lock_irqsave(&dev->slock, flags); + dev->isoc_ctl.isoc_copy(dev, urb); + spin_unlock_irqrestore(&dev->slock, flags); + + /* Reset urb buffers */ + for (i = 0; i < urb->number_of_packets; i++) { + urb->iso_frame_desc[i].status = 0; + urb->iso_frame_desc[i].actual_length = 0; + } + urb->status = 0; + + urb->status = usb_submit_urb(urb, GFP_ATOMIC); + if (urb->status) { + au0828_isocdbg("urb resubmit failed (error=%i)\n", + urb->status); + } + dev->stream_state = STREAM_ON; +} + +/* + * Stop and Deallocate URBs + */ +static void au0828_uninit_isoc(struct au0828_dev *dev) +{ + struct urb *urb; + int i; + + au0828_isocdbg("au0828: called au0828_uninit_isoc\n"); + + dev->isoc_ctl.nfields = -1; + for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { + urb = dev->isoc_ctl.urb[i]; + if (urb) { + if (!irqs_disabled()) + usb_kill_urb(urb); + else + usb_unlink_urb(urb); + + if (dev->isoc_ctl.transfer_buffer[i]) { + usb_free_coherent(dev->usbdev, + urb->transfer_buffer_length, + dev->isoc_ctl.transfer_buffer[i], + urb->transfer_dma); + } + usb_free_urb(urb); + dev->isoc_ctl.urb[i] = NULL; + } + dev->isoc_ctl.transfer_buffer[i] = NULL; + } + + kfree(dev->isoc_ctl.urb); + kfree(dev->isoc_ctl.transfer_buffer); + + dev->isoc_ctl.urb = NULL; + dev->isoc_ctl.transfer_buffer = NULL; + dev->isoc_ctl.num_bufs = 0; + + dev->stream_state = STREAM_OFF; +} + +/* + * Allocate URBs and start IRQ + */ +static int au0828_init_isoc(struct au0828_dev *dev, int max_packets, + int num_bufs, int max_pkt_size, + int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb)) +{ + struct au0828_dmaqueue *dma_q = &dev->vidq; + int i; + int sb_size, pipe; + struct urb *urb; + int j, k; + int rc; + + au0828_isocdbg("au0828: called au0828_prepare_isoc\n"); + + dev->isoc_ctl.isoc_copy = isoc_copy; + dev->isoc_ctl.num_bufs = num_bufs; + + dev->isoc_ctl.urb = kcalloc(num_bufs, sizeof(void *), GFP_KERNEL); + if (!dev->isoc_ctl.urb) { + au0828_isocdbg("cannot alloc memory for usb buffers\n"); + return -ENOMEM; + } + + dev->isoc_ctl.transfer_buffer = kcalloc(num_bufs, sizeof(void *), + GFP_KERNEL); + if (!dev->isoc_ctl.transfer_buffer) { + au0828_isocdbg("cannot allocate memory for usb transfer\n"); + kfree(dev->isoc_ctl.urb); + return -ENOMEM; + } + + dev->isoc_ctl.max_pkt_size = max_pkt_size; + dev->isoc_ctl.buf = NULL; + + sb_size = max_packets * dev->isoc_ctl.max_pkt_size; + + /* allocate urbs and transfer buffers */ + for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { + urb = usb_alloc_urb(max_packets, GFP_KERNEL); + if (!urb) { + au0828_uninit_isoc(dev); + return -ENOMEM; + } + dev->isoc_ctl.urb[i] = urb; + + dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev, + sb_size, GFP_KERNEL, &urb->transfer_dma); + if (!dev->isoc_ctl.transfer_buffer[i]) { + printk("unable to allocate %i bytes for transfer buffer %i%s\n", + sb_size, i, + in_interrupt() ? " while in int" : ""); + au0828_uninit_isoc(dev); + return -ENOMEM; + } + memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size); + + pipe = usb_rcvisocpipe(dev->usbdev, + dev->isoc_in_endpointaddr), + + usb_fill_int_urb(urb, dev->usbdev, pipe, + dev->isoc_ctl.transfer_buffer[i], sb_size, + au0828_irq_callback, dma_q, 1); + + urb->number_of_packets = max_packets; + urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; + + k = 0; + for (j = 0; j < max_packets; j++) { + urb->iso_frame_desc[j].offset = k; + urb->iso_frame_desc[j].length = + dev->isoc_ctl.max_pkt_size; + k += dev->isoc_ctl.max_pkt_size; + } + } + + /* submit urbs and enables IRQ */ + for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { + rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); + if (rc) { + au0828_isocdbg("submit of urb %i failed (error=%i)\n", + i, rc); + au0828_uninit_isoc(dev); + return rc; + } + } + + return 0; +} + +/* + * Announces that a buffer were filled and request the next + */ +static inline void buffer_filled(struct au0828_dev *dev, + struct au0828_dmaqueue *dma_q, + struct au0828_buffer *buf) +{ + struct vb2_v4l2_buffer *vb = &buf->vb; + struct vb2_queue *q = vb->vb2_buf.vb2_queue; + + /* Advice that buffer was filled */ + au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field); + + if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + vb->sequence = dev->frame_count++; + else + vb->sequence = dev->vbi_frame_count++; + + vb->field = V4L2_FIELD_INTERLACED; + vb->vb2_buf.timestamp = ktime_get_ns(); + vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE); +} + +/* + * Identify the buffer header type and properly handles + */ +static void au0828_copy_video(struct au0828_dev *dev, + struct au0828_dmaqueue *dma_q, + struct au0828_buffer *buf, + unsigned char *p, + unsigned char *outp, unsigned long len) +{ + void *fieldstart, *startwrite, *startread; + int linesdone, currlinedone, offset, lencopy, remain; + int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */ + + if (len == 0) + return; + + if (dma_q->pos + len > buf->length) + len = buf->length - dma_q->pos; + + startread = p; + remain = len; + + /* Interlaces frame */ + if (buf->top_field) + fieldstart = outp; + else + fieldstart = outp + bytesperline; + + linesdone = dma_q->pos / bytesperline; + currlinedone = dma_q->pos % bytesperline; + offset = linesdone * bytesperline * 2 + currlinedone; + startwrite = fieldstart + offset; + lencopy = bytesperline - currlinedone; + lencopy = lencopy > remain ? remain : lencopy; + + if ((char *)startwrite + lencopy > (char *)outp + buf->length) { + au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n", + ((char *)startwrite + lencopy) - + ((char *)outp + buf->length)); + remain = (char *)outp + buf->length - (char *)startwrite; + lencopy = remain; + } + if (lencopy <= 0) + return; + memcpy(startwrite, startread, lencopy); + + remain -= lencopy; + + while (remain > 0) { + startwrite += lencopy + bytesperline; + startread += lencopy; + if (bytesperline > remain) + lencopy = remain; + else + lencopy = bytesperline; + + if ((char *)startwrite + lencopy > (char *)outp + + buf->length) { + au0828_isocdbg("Overflow %zi bytes past buf end (2)\n", + ((char *)startwrite + lencopy) - + ((char *)outp + buf->length)); + lencopy = remain = (char *)outp + buf->length - + (char *)startwrite; + } + if (lencopy <= 0) + break; + + memcpy(startwrite, startread, lencopy); + + remain -= lencopy; + } + + if (offset > 1440) { + /* We have enough data to check for greenscreen */ + if (outp[0] < 0x60 && outp[1440] < 0x60) + dev->greenscreen_detected = 1; + } + + dma_q->pos += len; +} + +/* + * video-buf generic routine to get the next available buffer + */ +static inline void get_next_buf(struct au0828_dmaqueue *dma_q, + struct au0828_buffer **buf) +{ + struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); + + if (list_empty(&dma_q->active)) { + au0828_isocdbg("No active queue to serve\n"); + dev->isoc_ctl.buf = NULL; + *buf = NULL; + return; + } + + /* Get the next buffer */ + *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); + /* Cleans up buffer - Useful for testing for frame/URB loss */ + list_del(&(*buf)->list); + dma_q->pos = 0; + (*buf)->vb_buf = (*buf)->mem; + dev->isoc_ctl.buf = *buf; + + return; +} + +static void au0828_copy_vbi(struct au0828_dev *dev, + struct au0828_dmaqueue *dma_q, + struct au0828_buffer *buf, + unsigned char *p, + unsigned char *outp, unsigned long len) +{ + unsigned char *startwrite, *startread; + int bytesperline; + int i, j = 0; + + if (dev == NULL) { + au0828_isocdbg("dev is null\n"); + return; + } + + if (dma_q == NULL) { + au0828_isocdbg("dma_q is null\n"); + return; + } + if (buf == NULL) + return; + if (p == NULL) { + au0828_isocdbg("p is null\n"); + return; + } + if (outp == NULL) { + au0828_isocdbg("outp is null\n"); + return; + } + + bytesperline = dev->vbi_width; + + if (dma_q->pos + len > buf->length) + len = buf->length - dma_q->pos; + + startread = p; + startwrite = outp + (dma_q->pos / 2); + + /* Make sure the bottom field populates the second half of the frame */ + if (buf->top_field == 0) + startwrite += bytesperline * dev->vbi_height; + + for (i = 0; i < len; i += 2) + startwrite[j++] = startread[i+1]; + + dma_q->pos += len; +} + + +/* + * video-buf generic routine to get the next available VBI buffer + */ +static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q, + struct au0828_buffer **buf) +{ + struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq); + + if (list_empty(&dma_q->active)) { + au0828_isocdbg("No active queue to serve\n"); + dev->isoc_ctl.vbi_buf = NULL; + *buf = NULL; + return; + } + + /* Get the next buffer */ + *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); + /* Cleans up buffer - Useful for testing for frame/URB loss */ + list_del(&(*buf)->list); + dma_q->pos = 0; + (*buf)->vb_buf = (*buf)->mem; + dev->isoc_ctl.vbi_buf = *buf; + return; +} + +/* + * Controls the isoc copy of each urb packet + */ +static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb) +{ + struct au0828_buffer *buf; + struct au0828_buffer *vbi_buf; + struct au0828_dmaqueue *dma_q = urb->context; + struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq; + unsigned char *outp = NULL; + unsigned char *vbioutp = NULL; + int i, len = 0, rc = 1; + unsigned char *p; + unsigned char fbyte; + unsigned int vbi_field_size; + unsigned int remain, lencopy; + + if (!dev) + return 0; + + if (test_bit(DEV_DISCONNECTED, &dev->dev_state) || + test_bit(DEV_MISCONFIGURED, &dev->dev_state)) + return 0; + + if (urb->status < 0) { + print_err_status(dev, -1, urb->status); + if (urb->status == -ENOENT) + return 0; + } + + buf = dev->isoc_ctl.buf; + if (buf != NULL) + outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); + + vbi_buf = dev->isoc_ctl.vbi_buf; + if (vbi_buf != NULL) + vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0); + + for (i = 0; i < urb->number_of_packets; i++) { + int status = urb->iso_frame_desc[i].status; + + if (status < 0) { + print_err_status(dev, i, status); + if (urb->iso_frame_desc[i].status != -EPROTO) + continue; + } + + if (urb->iso_frame_desc[i].actual_length <= 0) + continue; + + if (urb->iso_frame_desc[i].actual_length > + dev->max_pkt_size) { + au0828_isocdbg("packet bigger than packet size"); + continue; + } + + p = urb->transfer_buffer + urb->iso_frame_desc[i].offset; + fbyte = p[0]; + len = urb->iso_frame_desc[i].actual_length - 4; + p += 4; + + if (fbyte & 0x80) { + len -= 4; + p += 4; + au0828_isocdbg("Video frame %s\n", + (fbyte & 0x40) ? "odd" : "even"); + if (fbyte & 0x40) { + /* VBI */ + if (vbi_buf != NULL) + buffer_filled(dev, vbi_dma_q, vbi_buf); + vbi_get_next_buf(vbi_dma_q, &vbi_buf); + if (vbi_buf == NULL) + vbioutp = NULL; + else + vbioutp = vb2_plane_vaddr( + &vbi_buf->vb.vb2_buf, 0); + + /* Video */ + if (buf != NULL) + buffer_filled(dev, dma_q, buf); + get_next_buf(dma_q, &buf); + if (buf == NULL) + outp = NULL; + else + outp = vb2_plane_vaddr( + &buf->vb.vb2_buf, 0); + + /* As long as isoc traffic is arriving, keep + resetting the timer */ + if (dev->vid_timeout_running) + mod_timer(&dev->vid_timeout, + jiffies + (HZ / 10)); + if (dev->vbi_timeout_running) + mod_timer(&dev->vbi_timeout, + jiffies + (HZ / 10)); + } + + if (buf != NULL) { + if (fbyte & 0x40) + buf->top_field = 1; + else + buf->top_field = 0; + } + + if (vbi_buf != NULL) { + if (fbyte & 0x40) + vbi_buf->top_field = 1; + else + vbi_buf->top_field = 0; + } + + dev->vbi_read = 0; + vbi_dma_q->pos = 0; + dma_q->pos = 0; + } + + vbi_field_size = dev->vbi_width * dev->vbi_height * 2; + if (dev->vbi_read < vbi_field_size) { + remain = vbi_field_size - dev->vbi_read; + if (len < remain) + lencopy = len; + else + lencopy = remain; + + if (vbi_buf != NULL) + au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p, + vbioutp, len); + + len -= lencopy; + p += lencopy; + dev->vbi_read += lencopy; + } + + if (dev->vbi_read >= vbi_field_size && buf != NULL) + au0828_copy_video(dev, dma_q, buf, p, outp, len); + } + return rc; +} + +void au0828_usb_v4l2_media_release(struct au0828_dev *dev) +{ +#ifdef CONFIG_MEDIA_CONTROLLER + int i; + + for (i = 0; i < AU0828_MAX_INPUT; i++) { + if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) + return; + media_device_unregister_entity(&dev->input_ent[i]); + } +#endif +} + +static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev) +{ + struct au0828_dev *dev = + container_of(v4l2_dev, struct au0828_dev, v4l2_dev); + + v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl); + v4l2_device_unregister(&dev->v4l2_dev); + au0828_usb_v4l2_media_release(dev); + au0828_usb_release(dev); +} + +int au0828_v4l2_device_register(struct usb_interface *interface, + struct au0828_dev *dev) +{ + int retval; + + if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) + return 0; + + /* Create the v4l2_device */ +#ifdef CONFIG_MEDIA_CONTROLLER + dev->v4l2_dev.mdev = dev->media_dev; +#endif + retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev); + if (retval) { + pr_err("%s() v4l2_device_register failed\n", + __func__); + return retval; + } + + dev->v4l2_dev.release = au0828_usb_v4l2_release; + + /* This control handler will inherit the controls from au8522 */ + retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4); + if (retval) { + pr_err("%s() v4l2_ctrl_handler_init failed\n", + __func__); + return retval; + } + dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl; + + return 0; +} + +static int queue_setup(struct vb2_queue *vq, + unsigned int *nbuffers, unsigned int *nplanes, + unsigned int sizes[], struct device *alloc_devs[]) +{ + struct au0828_dev *dev = vb2_get_drv_priv(vq); + unsigned long size = dev->height * dev->bytesperline; + + if (*nplanes) + return sizes[0] < size ? -EINVAL : 0; + *nplanes = 1; + sizes[0] = size; + return 0; +} + +static int +buffer_prepare(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct au0828_buffer *buf = container_of(vbuf, + struct au0828_buffer, vb); + struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + + buf->length = dev->height * dev->bytesperline; + + if (vb2_plane_size(vb, 0) < buf->length) { + pr_err("%s data will not fit into plane (%lu < %lu)\n", + __func__, vb2_plane_size(vb, 0), buf->length); + return -EINVAL; + } + vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length); + return 0; +} + +static void +buffer_queue(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct au0828_buffer *buf = container_of(vbuf, + struct au0828_buffer, + vb); + struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + struct au0828_dmaqueue *vidq = &dev->vidq; + unsigned long flags = 0; + + buf->mem = vb2_plane_vaddr(vb, 0); + buf->length = vb2_plane_size(vb, 0); + + spin_lock_irqsave(&dev->slock, flags); + list_add_tail(&buf->list, &vidq->active); + spin_unlock_irqrestore(&dev->slock, flags); +} + +static int au0828_i2s_init(struct au0828_dev *dev) +{ + /* Enable i2s mode */ + au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01); + return 0; +} + +/* + * Auvitek au0828 analog stream enable + */ +static int au0828_analog_stream_enable(struct au0828_dev *d) +{ + struct usb_interface *iface; + int ret, h, w; + + dprintk(1, "au0828_analog_stream_enable called\n"); + + if (test_bit(DEV_DISCONNECTED, &d->dev_state)) + return -ENODEV; + + iface = usb_ifnum_to_if(d->usbdev, 0); + if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) { + dprintk(1, "Changing intf#0 to alt 5\n"); + /* set au0828 interface0 to AS5 here again */ + ret = usb_set_interface(d->usbdev, 0, 5); + if (ret < 0) { + pr_info("Au0828 can't set alt setting to 5!\n"); + return -EBUSY; + } + } + + h = d->height / 2 + 2; + w = d->width * 2; + + au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00); + au0828_writereg(d, 0x106, 0x00); + /* set x position */ + au0828_writereg(d, 0x110, 0x00); + au0828_writereg(d, 0x111, 0x00); + au0828_writereg(d, 0x114, w & 0xff); + au0828_writereg(d, 0x115, w >> 8); + /* set y position */ + au0828_writereg(d, 0x112, 0x00); + au0828_writereg(d, 0x113, 0x00); + au0828_writereg(d, 0x116, h & 0xff); + au0828_writereg(d, 0x117, h >> 8); + au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3); + + return 0; +} + +static int au0828_analog_stream_disable(struct au0828_dev *d) +{ + dprintk(1, "au0828_analog_stream_disable called\n"); + au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0); + return 0; +} + +static void au0828_analog_stream_reset(struct au0828_dev *dev) +{ + dprintk(1, "au0828_analog_stream_reset called\n"); + au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0); + mdelay(30); + au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3); +} + +/* + * Some operations needs to stop current streaming + */ +static int au0828_stream_interrupt(struct au0828_dev *dev) +{ + dev->stream_state = STREAM_INTERRUPT; + if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) + return -ENODEV; + return 0; +} + +int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count) +{ + struct au0828_dev *dev = vb2_get_drv_priv(vq); + int rc = 0; + + dprintk(1, "au0828_start_analog_streaming called %d\n", + dev->streaming_users); + + if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + dev->frame_count = 0; + else + dev->vbi_frame_count = 0; + + if (dev->streaming_users == 0) { + /* If we were doing ac97 instead of i2s, it would go here...*/ + au0828_i2s_init(dev); + rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB, + AU0828_MAX_ISO_BUFS, dev->max_pkt_size, + au0828_isoc_copy); + if (rc < 0) { + pr_info("au0828_init_isoc failed\n"); + return rc; + } + + v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1); + + if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { + dev->vid_timeout_running = 1; + mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); + } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) { + dev->vbi_timeout_running = 1; + mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); + } + } + dev->streaming_users++; + return rc; +} + +static void au0828_stop_streaming(struct vb2_queue *vq) +{ + struct au0828_dev *dev = vb2_get_drv_priv(vq); + struct au0828_dmaqueue *vidq = &dev->vidq; + unsigned long flags = 0; + + dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users); + + if (dev->streaming_users-- == 1) { + au0828_uninit_isoc(dev); + v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); + } + + dev->vid_timeout_running = 0; + del_timer_sync(&dev->vid_timeout); + + spin_lock_irqsave(&dev->slock, flags); + if (dev->isoc_ctl.buf != NULL) { + vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf, + VB2_BUF_STATE_ERROR); + dev->isoc_ctl.buf = NULL; + } + while (!list_empty(&vidq->active)) { + struct au0828_buffer *buf; + + buf = list_entry(vidq->active.next, struct au0828_buffer, list); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + list_del(&buf->list); + } + spin_unlock_irqrestore(&dev->slock, flags); +} + +void au0828_stop_vbi_streaming(struct vb2_queue *vq) +{ + struct au0828_dev *dev = vb2_get_drv_priv(vq); + struct au0828_dmaqueue *vbiq = &dev->vbiq; + unsigned long flags = 0; + + dprintk(1, "au0828_stop_vbi_streaming called %d\n", + dev->streaming_users); + + if (dev->streaming_users-- == 1) { + au0828_uninit_isoc(dev); + v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); + } + + spin_lock_irqsave(&dev->slock, flags); + if (dev->isoc_ctl.vbi_buf != NULL) { + vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf, + VB2_BUF_STATE_ERROR); + dev->isoc_ctl.vbi_buf = NULL; + } + while (!list_empty(&vbiq->active)) { + struct au0828_buffer *buf; + + buf = list_entry(vbiq->active.next, struct au0828_buffer, list); + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + } + spin_unlock_irqrestore(&dev->slock, flags); + + dev->vbi_timeout_running = 0; + del_timer_sync(&dev->vbi_timeout); +} + +static const struct vb2_ops au0828_video_qops = { + .queue_setup = queue_setup, + .buf_prepare = buffer_prepare, + .buf_queue = buffer_queue, + .start_streaming = au0828_start_analog_streaming, + .stop_streaming = au0828_stop_streaming, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +/* ------------------------------------------------------------------ + V4L2 interface + ------------------------------------------------------------------*/ +/* + * au0828_analog_unregister + * unregister v4l2 devices + */ +int au0828_analog_unregister(struct au0828_dev *dev) +{ + dprintk(1, "au0828_analog_unregister called\n"); + + /* No analog TV */ + if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) + return 0; + + mutex_lock(&au0828_sysfs_lock); + video_unregister_device(&dev->vdev); + video_unregister_device(&dev->vbi_dev); + mutex_unlock(&au0828_sysfs_lock); + + v4l2_device_disconnect(&dev->v4l2_dev); + v4l2_device_put(&dev->v4l2_dev); + + return 1; +} + +/* This function ensures that video frames continue to be delivered even if + the ITU-656 input isn't receiving any data (thereby preventing applications + such as tvtime from hanging) */ +static void au0828_vid_buffer_timeout(struct timer_list *t) +{ + struct au0828_dev *dev = from_timer(dev, t, vid_timeout); + struct au0828_dmaqueue *dma_q = &dev->vidq; + struct au0828_buffer *buf; + unsigned char *vid_data; + unsigned long flags = 0; + + spin_lock_irqsave(&dev->slock, flags); + + buf = dev->isoc_ctl.buf; + if (buf != NULL) { + vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); + memset(vid_data, 0x00, buf->length); /* Blank green frame */ + buffer_filled(dev, dma_q, buf); + } + get_next_buf(dma_q, &buf); + + if (dev->vid_timeout_running == 1) + mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); + + spin_unlock_irqrestore(&dev->slock, flags); +} + +static void au0828_vbi_buffer_timeout(struct timer_list *t) +{ + struct au0828_dev *dev = from_timer(dev, t, vbi_timeout); + struct au0828_dmaqueue *dma_q = &dev->vbiq; + struct au0828_buffer *buf; + unsigned char *vbi_data; + unsigned long flags = 0; + + spin_lock_irqsave(&dev->slock, flags); + + buf = dev->isoc_ctl.vbi_buf; + if (buf != NULL) { + vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); + memset(vbi_data, 0x00, buf->length); + buffer_filled(dev, dma_q, buf); + } + vbi_get_next_buf(dma_q, &buf); + + if (dev->vbi_timeout_running == 1) + mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); + spin_unlock_irqrestore(&dev->slock, flags); +} + +static int au0828_v4l2_open(struct file *filp) +{ + struct au0828_dev *dev = video_drvdata(filp); + int ret; + + dprintk(1, + "%s called std_set %d dev_state %ld stream users %d users %d\n", + __func__, dev->std_set_in_tuner_core, dev->dev_state, + dev->streaming_users, dev->users); + + if (mutex_lock_interruptible(&dev->lock)) + return -ERESTARTSYS; + + ret = v4l2_fh_open(filp); + if (ret) { + au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n", + __func__, ret); + mutex_unlock(&dev->lock); + return ret; + } + + if (dev->users == 0) { + au0828_analog_stream_enable(dev); + au0828_analog_stream_reset(dev); + dev->stream_state = STREAM_OFF; + set_bit(DEV_INITIALIZED, &dev->dev_state); + } + dev->users++; + mutex_unlock(&dev->lock); + return ret; +} + +static int au0828_v4l2_close(struct file *filp) +{ + int ret; + struct au0828_dev *dev = video_drvdata(filp); + struct video_device *vdev = video_devdata(filp); + + dprintk(1, + "%s called std_set %d dev_state %ld stream users %d users %d\n", + __func__, dev->std_set_in_tuner_core, dev->dev_state, + dev->streaming_users, dev->users); + + mutex_lock(&dev->lock); + if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) { + /* Cancel timeout thread in case they didn't call streamoff */ + dev->vid_timeout_running = 0; + del_timer_sync(&dev->vid_timeout); + } else if (vdev->vfl_type == VFL_TYPE_VBI && + dev->vbi_timeout_running) { + /* Cancel timeout thread in case they didn't call streamoff */ + dev->vbi_timeout_running = 0; + del_timer_sync(&dev->vbi_timeout); + } + + if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) + goto end; + + if (dev->users == 1) { + /* + * Avoid putting tuner in sleep if DVB or ALSA are + * streaming. + * + * On most USB devices like au0828 the tuner can + * be safely put in sleep stare here if ALSA isn't + * streaming. Exceptions are some very old USB tuner + * models such as em28xx-based WinTV USB2 which have + * a separate audio output jack. The devices that have + * a separate audio output jack have analog tuners, + * like Philips FM1236. Those devices are always on, + * so the s_power callback are silently ignored. + * So, the current logic here does the following: + * Disable (put tuner to sleep) when + * - ALSA and DVB aren't not streaming; + * - the last V4L2 file handler is closed. + * + * FIXME: + * + * Additionally, this logic could be improved to + * disable the media source if the above conditions + * are met and if the device: + * - doesn't have a separate audio out plug (or + * - doesn't use a silicon tuner like xc2028/3028/4000/5000). + * + * Once this additional logic is in place, a callback + * is needed to enable the media source and power on + * the tuner, for radio to work. + */ + ret = v4l_enable_media_source(vdev); + if (ret == 0) + v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, + standby); + dev->std_set_in_tuner_core = 0; + + /* When close the device, set the usb intf0 into alt0 to free + USB bandwidth */ + ret = usb_set_interface(dev->usbdev, 0, 0); + if (ret < 0) + pr_info("Au0828 can't set alternate to 0!\n"); + } +end: + _vb2_fop_release(filp, NULL); + dev->users--; + mutex_unlock(&dev->lock); + return 0; +} + +/* Must be called with dev->lock held */ +static void au0828_init_tuner(struct au0828_dev *dev) +{ + struct v4l2_frequency f = { + .frequency = dev->ctrl_freq, + .type = V4L2_TUNER_ANALOG_TV, + }; + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + if (dev->std_set_in_tuner_core) + return; + dev->std_set_in_tuner_core = 1; + i2c_gate_ctrl(dev, 1); + /* If we've never sent the standard in tuner core, do so now. + We don't do this at device probe because we don't want to + incur the cost of a firmware load */ + v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std); + v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); + i2c_gate_ctrl(dev, 0); +} + +static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd, + struct v4l2_format *format) +{ + int ret; + int width = format->fmt.pix.width; + int height = format->fmt.pix.height; + + /* If they are demanding a format other than the one we support, + bail out (tvtime asks for UYVY and then retries with YUYV) */ + if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY) + return -EINVAL; + + /* format->fmt.pix.width only support 720 and height 480 */ + if (width != 720) + width = 720; + if (height != 480) + height = 480; + + format->fmt.pix.width = width; + format->fmt.pix.height = height; + format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; + format->fmt.pix.bytesperline = width * 2; + format->fmt.pix.sizeimage = width * height * 2; + format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; + format->fmt.pix.field = V4L2_FIELD_INTERLACED; + format->fmt.pix.priv = 0; + + if (cmd == VIDIOC_TRY_FMT) + return 0; + + /* maybe set new image format, driver current only support 720*480 */ + dev->width = width; + dev->height = height; + dev->frame_size = width * height * 2; + dev->field_size = width * height; + dev->bytesperline = width * 2; + + if (dev->stream_state == STREAM_ON) { + dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n"); + ret = au0828_stream_interrupt(dev); + if (ret != 0) { + dprintk(1, "error interrupting video stream!\n"); + return ret; + } + } + + au0828_analog_stream_enable(dev); + + return 0; +} + +static int vidioc_querycap(struct file *file, void *priv, + struct v4l2_capability *cap) +{ + struct video_device *vdev = video_devdata(file); + struct au0828_dev *dev = video_drvdata(file); + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + strlcpy(cap->driver, "au0828", sizeof(cap->driver)); + strlcpy(cap->card, dev->board.name, sizeof(cap->card)); + usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info)); + + /* set the device capabilities */ + cap->device_caps = V4L2_CAP_AUDIO | + V4L2_CAP_READWRITE | + V4L2_CAP_STREAMING | + V4L2_CAP_TUNER; + if (vdev->vfl_type == VFL_TYPE_GRABBER) + cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE; + else + cap->device_caps |= V4L2_CAP_VBI_CAPTURE; + cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS | + V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE; + return 0; +} + +static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + if (f->index) + return -EINVAL; + + dprintk(1, "%s called\n", __func__); + + f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + strcpy(f->description, "Packed YUV2"); + + f->flags = 0; + f->pixelformat = V4L2_PIX_FMT_UYVY; + + return 0; +} + +static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct au0828_dev *dev = video_drvdata(file); + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + f->fmt.pix.width = dev->width; + f->fmt.pix.height = dev->height; + f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; + f->fmt.pix.bytesperline = dev->bytesperline; + f->fmt.pix.sizeimage = dev->frame_size; + f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */ + f->fmt.pix.field = V4L2_FIELD_INTERLACED; + f->fmt.pix.priv = 0; + return 0; +} + +static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct au0828_dev *dev = video_drvdata(file); + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + return au0828_set_format(dev, VIDIOC_TRY_FMT, f); +} + +static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct au0828_dev *dev = video_drvdata(file); + int rc; + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + rc = check_dev(dev); + if (rc < 0) + return rc; + + if (vb2_is_busy(&dev->vb_vidq)) { + pr_info("%s queue busy\n", __func__); + rc = -EBUSY; + goto out; + } + + rc = au0828_set_format(dev, VIDIOC_S_FMT, f); +out: + return rc; +} + +static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) +{ + struct au0828_dev *dev = video_drvdata(file); + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + if (norm == dev->std) + return 0; + + if (dev->streaming_users > 0) + return -EBUSY; + + dev->std = norm; + + au0828_init_tuner(dev); + + i2c_gate_ctrl(dev, 1); + + /* + * FIXME: when we support something other than 60Hz standards, + * we are going to have to make the au0828 bridge adjust the size + * of its capture buffer, which is currently hardcoded at 720x480 + */ + + v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm); + + i2c_gate_ctrl(dev, 0); + + return 0; +} + +static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) +{ + struct au0828_dev *dev = video_drvdata(file); + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + *norm = dev->std; + return 0; +} + +static int vidioc_enum_input(struct file *file, void *priv, + struct v4l2_input *input) +{ + struct au0828_dev *dev = video_drvdata(file); + unsigned int tmp; + + static const char *inames[] = { + [AU0828_VMUX_UNDEFINED] = "Undefined", + [AU0828_VMUX_COMPOSITE] = "Composite", + [AU0828_VMUX_SVIDEO] = "S-Video", + [AU0828_VMUX_CABLE] = "Cable TV", + [AU0828_VMUX_TELEVISION] = "Television", + [AU0828_VMUX_DVB] = "DVB", + }; + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + tmp = input->index; + + if (tmp >= AU0828_MAX_INPUT) + return -EINVAL; + if (AUVI_INPUT(tmp).type == 0) + return -EINVAL; + + input->index = tmp; + strcpy(input->name, inames[AUVI_INPUT(tmp).type]); + if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) || + (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) { + input->type |= V4L2_INPUT_TYPE_TUNER; + input->audioset = 1; + } else { + input->type |= V4L2_INPUT_TYPE_CAMERA; + input->audioset = 2; + } + + input->std = dev->vdev.tvnorms; + + return 0; +} + +static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) +{ + struct au0828_dev *dev = video_drvdata(file); + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + *i = dev->ctrl_input; + return 0; +} + +static void au0828_s_input(struct au0828_dev *dev, int index) +{ + int i; + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + switch (AUVI_INPUT(index).type) { + case AU0828_VMUX_SVIDEO: + dev->input_type = AU0828_VMUX_SVIDEO; + dev->ctrl_ainput = 1; + break; + case AU0828_VMUX_COMPOSITE: + dev->input_type = AU0828_VMUX_COMPOSITE; + dev->ctrl_ainput = 1; + break; + case AU0828_VMUX_TELEVISION: + dev->input_type = AU0828_VMUX_TELEVISION; + dev->ctrl_ainput = 0; + break; + default: + dprintk(1, "unknown input type set [%d]\n", + AUVI_INPUT(index).type); + return; + } + + dev->ctrl_input = index; + + v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, + AUVI_INPUT(index).vmux, 0, 0); + + for (i = 0; i < AU0828_MAX_INPUT; i++) { + int enable = 0; + if (AUVI_INPUT(i).audio_setup == NULL) + continue; + + if (i == index) + enable = 1; + else + enable = 0; + if (enable) { + (AUVI_INPUT(i).audio_setup)(dev, enable); + } else { + /* Make sure we leave it turned on if some + other input is routed to this callback */ + if ((AUVI_INPUT(i).audio_setup) != + ((AUVI_INPUT(index).audio_setup))) { + (AUVI_INPUT(i).audio_setup)(dev, enable); + } + } + } + + v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, + AUVI_INPUT(index).amux, 0, 0); +} + +static int vidioc_s_input(struct file *file, void *priv, unsigned int index) +{ + struct au0828_dev *dev = video_drvdata(file); + struct video_device *vfd = video_devdata(file); + + dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__, + index); + if (index >= AU0828_MAX_INPUT) + return -EINVAL; + if (AUVI_INPUT(index).type == 0) + return -EINVAL; + + if (dev->ctrl_input == index) + return 0; + + au0828_s_input(dev, index); + + /* + * Input has been changed. Disable the media source + * associated with the old input and enable source + * for the newly set input + */ + v4l_disable_media_source(vfd); + return v4l_enable_media_source(vfd); +} + +static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a) +{ + if (a->index > 1) + return -EINVAL; + + dprintk(1, "%s called\n", __func__); + + if (a->index == 0) + strcpy(a->name, "Television"); + else + strcpy(a->name, "Line in"); + + a->capability = V4L2_AUDCAP_STEREO; + return 0; +} + +static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) +{ + struct au0828_dev *dev = video_drvdata(file); + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + a->index = dev->ctrl_ainput; + if (a->index == 0) + strcpy(a->name, "Television"); + else + strcpy(a->name, "Line in"); + + a->capability = V4L2_AUDCAP_STEREO; + return 0; +} + +static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) +{ + struct au0828_dev *dev = video_drvdata(file); + + if (a->index != dev->ctrl_ainput) + return -EINVAL; + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + return 0; +} + +static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) +{ + struct au0828_dev *dev = video_drvdata(file); + struct video_device *vfd = video_devdata(file); + int ret; + + if (t->index != 0) + return -EINVAL; + + ret = v4l_enable_media_source(vfd); + if (ret) + return ret; + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + strcpy(t->name, "Auvitek tuner"); + + au0828_init_tuner(dev); + i2c_gate_ctrl(dev, 1); + v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); + i2c_gate_ctrl(dev, 0); + return 0; +} + +static int vidioc_s_tuner(struct file *file, void *priv, + const struct v4l2_tuner *t) +{ + struct au0828_dev *dev = video_drvdata(file); + + if (t->index != 0) + return -EINVAL; + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + au0828_init_tuner(dev); + i2c_gate_ctrl(dev, 1); + v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); + i2c_gate_ctrl(dev, 0); + + dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal, + t->afc); + + return 0; + +} + +static int vidioc_g_frequency(struct file *file, void *priv, + struct v4l2_frequency *freq) +{ + struct au0828_dev *dev = video_drvdata(file); + + if (freq->tuner != 0) + return -EINVAL; + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + freq->frequency = dev->ctrl_freq; + return 0; +} + +static int vidioc_s_frequency(struct file *file, void *priv, + const struct v4l2_frequency *freq) +{ + struct au0828_dev *dev = video_drvdata(file); + struct v4l2_frequency new_freq = *freq; + + if (freq->tuner != 0) + return -EINVAL; + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + au0828_init_tuner(dev); + i2c_gate_ctrl(dev, 1); + + v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq); + /* Get the actual set (and possibly clamped) frequency */ + v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq); + dev->ctrl_freq = new_freq.frequency; + + i2c_gate_ctrl(dev, 0); + + au0828_analog_stream_reset(dev); + + return 0; +} + + +/* RAW VBI ioctls */ + +static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, + struct v4l2_format *format) +{ + struct au0828_dev *dev = video_drvdata(file); + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + format->fmt.vbi.samples_per_line = dev->vbi_width; + format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; + format->fmt.vbi.offset = 0; + format->fmt.vbi.flags = 0; + format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; + + format->fmt.vbi.count[0] = dev->vbi_height; + format->fmt.vbi.count[1] = dev->vbi_height; + format->fmt.vbi.start[0] = 21; + format->fmt.vbi.start[1] = 284; + memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved)); + + return 0; +} + +static int vidioc_cropcap(struct file *file, void *priv, + struct v4l2_cropcap *cc) +{ + struct au0828_dev *dev = video_drvdata(file); + + if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + cc->bounds.left = 0; + cc->bounds.top = 0; + cc->bounds.width = dev->width; + cc->bounds.height = dev->height; + + cc->defrect = cc->bounds; + + cc->pixelaspect.numerator = 54; + cc->pixelaspect.denominator = 59; + + return 0; +} + +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int vidioc_g_register(struct file *file, void *priv, + struct v4l2_dbg_register *reg) +{ + struct au0828_dev *dev = video_drvdata(file); + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + reg->val = au0828_read(dev, reg->reg); + reg->size = 1; + return 0; +} + +static int vidioc_s_register(struct file *file, void *priv, + const struct v4l2_dbg_register *reg) +{ + struct au0828_dev *dev = video_drvdata(file); + + dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, + dev->std_set_in_tuner_core, dev->dev_state); + + return au0828_writereg(dev, reg->reg, reg->val); +} +#endif + +static int vidioc_log_status(struct file *file, void *fh) +{ + struct video_device *vdev = video_devdata(file); + + dprintk(1, "%s called\n", __func__); + + v4l2_ctrl_log_status(file, fh); + v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status); + return 0; +} + +void au0828_v4l2_suspend(struct au0828_dev *dev) +{ + struct urb *urb; + int i; + + pr_info("stopping V4L2\n"); + + if (dev->stream_state == STREAM_ON) { + pr_info("stopping V4L2 active URBs\n"); + au0828_analog_stream_disable(dev); + /* stop urbs */ + for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { + urb = dev->isoc_ctl.urb[i]; + if (urb) { + if (!irqs_disabled()) + usb_kill_urb(urb); + else + usb_unlink_urb(urb); + } + } + } + + if (dev->vid_timeout_running) + del_timer_sync(&dev->vid_timeout); + if (dev->vbi_timeout_running) + del_timer_sync(&dev->vbi_timeout); +} + +void au0828_v4l2_resume(struct au0828_dev *dev) +{ + int i, rc; + + pr_info("restarting V4L2\n"); + + if (dev->stream_state == STREAM_ON) { + au0828_stream_interrupt(dev); + au0828_init_tuner(dev); + } + + if (dev->vid_timeout_running) + mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); + if (dev->vbi_timeout_running) + mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); + + /* If we were doing ac97 instead of i2s, it would go here...*/ + au0828_i2s_init(dev); + + au0828_analog_stream_enable(dev); + + if (!(dev->stream_state == STREAM_ON)) { + au0828_analog_stream_reset(dev); + /* submit urbs */ + for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { + rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); + if (rc) { + au0828_isocdbg("submit of urb %i failed (error=%i)\n", + i, rc); + au0828_uninit_isoc(dev); + } + } + } +} + +static const struct v4l2_file_operations au0828_v4l_fops = { + .owner = THIS_MODULE, + .open = au0828_v4l2_open, + .release = au0828_v4l2_close, + .read = vb2_fop_read, + .poll = vb2_fop_poll, + .mmap = vb2_fop_mmap, + .unlocked_ioctl = video_ioctl2, +}; + +static const struct v4l2_ioctl_ops video_ioctl_ops = { + .vidioc_querycap = vidioc_querycap, + .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, + .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, + .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, + .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, + .vidioc_enumaudio = vidioc_enumaudio, + .vidioc_g_audio = vidioc_g_audio, + .vidioc_s_audio = vidioc_s_audio, + .vidioc_cropcap = vidioc_cropcap, + + .vidioc_reqbufs = vb2_ioctl_reqbufs, + .vidioc_create_bufs = vb2_ioctl_create_bufs, + .vidioc_prepare_buf = vb2_ioctl_prepare_buf, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, + .vidioc_expbuf = vb2_ioctl_expbuf, + + .vidioc_s_std = vidioc_s_std, + .vidioc_g_std = vidioc_g_std, + .vidioc_enum_input = vidioc_enum_input, + .vidioc_g_input = vidioc_g_input, + .vidioc_s_input = vidioc_s_input, + + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, + + .vidioc_g_tuner = vidioc_g_tuner, + .vidioc_s_tuner = vidioc_s_tuner, + .vidioc_g_frequency = vidioc_g_frequency, + .vidioc_s_frequency = vidioc_s_frequency, +#ifdef CONFIG_VIDEO_ADV_DEBUG + .vidioc_g_register = vidioc_g_register, + .vidioc_s_register = vidioc_s_register, +#endif + .vidioc_log_status = vidioc_log_status, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +static const struct video_device au0828_video_template = { + .fops = &au0828_v4l_fops, + .release = video_device_release_empty, + .ioctl_ops = &video_ioctl_ops, + .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M, +}; + +static int au0828_vb2_setup(struct au0828_dev *dev) +{ + int rc; + struct vb2_queue *q; + + /* Setup Videobuf2 for Video capture */ + q = &dev->vb_vidq; + q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; + q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + q->drv_priv = dev; + q->buf_struct_size = sizeof(struct au0828_buffer); + q->ops = &au0828_video_qops; + q->mem_ops = &vb2_vmalloc_memops; + + rc = vb2_queue_init(q); + if (rc < 0) + return rc; + + /* Setup Videobuf2 for VBI capture */ + q = &dev->vb_vbiq; + q->type = V4L2_BUF_TYPE_VBI_CAPTURE; + q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; + q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + q->drv_priv = dev; + q->buf_struct_size = sizeof(struct au0828_buffer); + q->ops = &au0828_vbi_qops; + q->mem_ops = &vb2_vmalloc_memops; + + rc = vb2_queue_init(q); + if (rc < 0) + return rc; + + return 0; +} + +static void au0828_analog_create_entities(struct au0828_dev *dev) +{ +#if defined(CONFIG_MEDIA_CONTROLLER) + static const char * const inames[] = { + [AU0828_VMUX_COMPOSITE] = "Composite", + [AU0828_VMUX_SVIDEO] = "S-Video", + [AU0828_VMUX_CABLE] = "Cable TV", + [AU0828_VMUX_TELEVISION] = "Television", + [AU0828_VMUX_DVB] = "DVB", + }; + int ret, i; + + /* Initialize Video and VBI pads */ + dev->video_pad.flags = MEDIA_PAD_FL_SINK; + ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad); + if (ret < 0) + pr_err("failed to initialize video media entity!\n"); + + dev->vbi_pad.flags = MEDIA_PAD_FL_SINK; + ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad); + if (ret < 0) + pr_err("failed to initialize vbi media entity!\n"); + + /* Create entities for each input connector */ + for (i = 0; i < AU0828_MAX_INPUT; i++) { + struct media_entity *ent = &dev->input_ent[i]; + + if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) + break; + + ent->name = inames[AUVI_INPUT(i).type]; + ent->flags = MEDIA_ENT_FL_CONNECTOR; + dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE; + + switch (AUVI_INPUT(i).type) { + case AU0828_VMUX_COMPOSITE: + ent->function = MEDIA_ENT_F_CONN_COMPOSITE; + break; + case AU0828_VMUX_SVIDEO: + ent->function = MEDIA_ENT_F_CONN_SVIDEO; + break; + case AU0828_VMUX_CABLE: + case AU0828_VMUX_TELEVISION: + case AU0828_VMUX_DVB: + default: /* Just to shut up a warning */ + ent->function = MEDIA_ENT_F_CONN_RF; + break; + } + + ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]); + if (ret < 0) + pr_err("failed to initialize input pad[%d]!\n", i); + + ret = media_device_register_entity(dev->media_dev, ent); + if (ret < 0) + pr_err("failed to register input entity %d!\n", i); + } +#endif +} + +/**************************************************************************/ + +int au0828_analog_register(struct au0828_dev *dev, + struct usb_interface *interface) +{ + int retval = -ENOMEM; + struct usb_host_interface *iface_desc; + struct usb_endpoint_descriptor *endpoint; + int i, ret; + + dprintk(1, "au0828_analog_register called for intf#%d!\n", + interface->cur_altsetting->desc.bInterfaceNumber); + + /* No analog TV */ + if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) + return 0; + + /* set au0828 usb interface0 to as5 */ + retval = usb_set_interface(dev->usbdev, + interface->cur_altsetting->desc.bInterfaceNumber, 5); + if (retval != 0) { + pr_info("Failure setting usb interface0 to as5\n"); + return retval; + } + + /* Figure out which endpoint has the isoc interface */ + iface_desc = interface->cur_altsetting; + for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { + endpoint = &iface_desc->endpoint[i].desc; + if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) + == USB_DIR_IN) && + ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) + == USB_ENDPOINT_XFER_ISOC)) { + + /* we find our isoc in endpoint */ + u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize); + dev->max_pkt_size = (tmp & 0x07ff) * + (((tmp & 0x1800) >> 11) + 1); + dev->isoc_in_endpointaddr = endpoint->bEndpointAddress; + dprintk(1, + "Found isoc endpoint 0x%02x, max size = %d\n", + dev->isoc_in_endpointaddr, dev->max_pkt_size); + } + } + if (!(dev->isoc_in_endpointaddr)) { + pr_info("Could not locate isoc endpoint\n"); + return -ENODEV; + } + + init_waitqueue_head(&dev->open); + spin_lock_init(&dev->slock); + + /* init video dma queues */ + INIT_LIST_HEAD(&dev->vidq.active); + INIT_LIST_HEAD(&dev->vbiq.active); + + timer_setup(&dev->vid_timeout, au0828_vid_buffer_timeout, 0); + timer_setup(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 0); + + dev->width = NTSC_STD_W; + dev->height = NTSC_STD_H; + dev->field_size = dev->width * dev->height; + dev->frame_size = dev->field_size << 1; + dev->bytesperline = dev->width << 1; + dev->vbi_width = 720; + dev->vbi_height = 1; + dev->ctrl_ainput = 0; + dev->ctrl_freq = 960; + dev->std = V4L2_STD_NTSC_M; + /* Default input is TV Tuner */ + au0828_s_input(dev, 0); + + mutex_init(&dev->vb_queue_lock); + mutex_init(&dev->vb_vbi_queue_lock); + + /* Fill the video capture device struct */ + dev->vdev = au0828_video_template; + dev->vdev.v4l2_dev = &dev->v4l2_dev; + dev->vdev.lock = &dev->lock; + dev->vdev.queue = &dev->vb_vidq; + dev->vdev.queue->lock = &dev->vb_queue_lock; + strcpy(dev->vdev.name, "au0828a video"); + + /* Setup the VBI device */ + dev->vbi_dev = au0828_video_template; + dev->vbi_dev.v4l2_dev = &dev->v4l2_dev; + dev->vbi_dev.lock = &dev->lock; + dev->vbi_dev.queue = &dev->vb_vbiq; + dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock; + strcpy(dev->vbi_dev.name, "au0828a vbi"); + + /* Init entities at the Media Controller */ + au0828_analog_create_entities(dev); + + /* initialize videobuf2 stuff */ + retval = au0828_vb2_setup(dev); + if (retval != 0) { + dprintk(1, "unable to setup videobuf2 queues (error = %d).\n", + retval); + return -ENODEV; + } + + /* Register the v4l2 device */ + video_set_drvdata(&dev->vdev, dev); + retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1); + if (retval != 0) { + dprintk(1, "unable to register video device (error = %d).\n", + retval); + ret = -ENODEV; + goto err_reg_vdev; + } + + /* Register the vbi device */ + video_set_drvdata(&dev->vbi_dev, dev); + retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1); + if (retval != 0) { + dprintk(1, "unable to register vbi device (error = %d).\n", + retval); + ret = -ENODEV; + goto err_reg_vbi_dev; + } + +#ifdef CONFIG_MEDIA_CONTROLLER + retval = v4l2_mc_create_media_graph(dev->media_dev); + if (retval) { + pr_err("%s() au0282_dev_register failed to create graph\n", + __func__); + ret = -ENODEV; + goto err_reg_vbi_dev; + } +#endif + + dprintk(1, "%s completed!\n", __func__); + + return 0; + +err_reg_vbi_dev: + video_unregister_device(&dev->vdev); +err_reg_vdev: + vb2_queue_release(&dev->vb_vidq); + vb2_queue_release(&dev->vb_vbiq); + return ret; +} + |