diff options
Diffstat (limited to 'drivers/media/usb/ttusb-dec')
| -rw-r--r-- | drivers/media/usb/ttusb-dec/Kconfig | 22 | ||||
| -rw-r--r-- | drivers/media/usb/ttusb-dec/Makefile | 2 | ||||
| -rw-r--r-- | drivers/media/usb/ttusb-dec/ttusb_dec.c | 1786 | ||||
| -rw-r--r-- | drivers/media/usb/ttusb-dec/ttusbdecfe.c | 289 | ||||
| -rw-r--r-- | drivers/media/usb/ttusb-dec/ttusbdecfe.h | 24 |
5 files changed, 2123 insertions, 0 deletions
diff --git a/drivers/media/usb/ttusb-dec/Kconfig b/drivers/media/usb/ttusb-dec/Kconfig new file mode 100644 index 0000000000..ed5cf84ef1 --- /dev/null +++ b/drivers/media/usb/ttusb-dec/Kconfig @@ -0,0 +1,22 @@ +# SPDX-License-Identifier: GPL-2.0-only +config DVB_TTUSB_DEC + tristate "Technotrend/Hauppauge USB DEC devices" + depends on DVB_CORE && USB && INPUT && PCI + select CRC32 + help + Support for external USB adapters designed by Technotrend and + produced by Hauppauge, shipped under the brand name 'DEC2000-t' + and 'DEC3000-s'. + + Even if these devices have a MPEG decoder built in, they transmit + only compressed MPEG data over the USB bus, so you need + an external software decoder to watch TV on your computer. + + This driver needs external firmware. Please use the commands + "<kerneldir>/scripts/get_dvb_firmware dec2000t", + "<kerneldir>/scripts/get_dvb_firmware dec2540t", + "<kerneldir>/scripts/get_dvb_firmware dec3000s", + download/extract them, and then copy them to /usr/lib/hotplug/firmware + or /lib/firmware (depending on configuration of firmware hotplug). + + Say Y if you own such a device and want to use it. diff --git a/drivers/media/usb/ttusb-dec/Makefile b/drivers/media/usb/ttusb-dec/Makefile new file mode 100644 index 0000000000..d1abb672f9 --- /dev/null +++ b/drivers/media/usb/ttusb-dec/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-only +obj-$(CONFIG_DVB_TTUSB_DEC) += ttusb_dec.o ttusbdecfe.o diff --git a/drivers/media/usb/ttusb-dec/ttusb_dec.c b/drivers/media/usb/ttusb-dec/ttusb_dec.c new file mode 100644 index 0000000000..79faa25606 --- /dev/null +++ b/drivers/media/usb/ttusb-dec/ttusb_dec.c @@ -0,0 +1,1786 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * TTUSB DEC Driver + * + * Copyright (C) 2003-2004 Alex Woods <linux-dvb@giblets.org> + * IR support by Peter Beutner <p.beutner@gmx.net> + */ + +#include <linux/list.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/slab.h> +#include <linux/spinlock.h> +#include <linux/usb.h> +#include <linux/interrupt.h> +#include <linux/firmware.h> +#include <linux/crc32.h> +#include <linux/init.h> +#include <linux/input.h> + +#include <linux/mutex.h> + +#include <media/dmxdev.h> +#include <media/dvb_demux.h> +#include <media/dvb_frontend.h> +#include <media/dvb_net.h> +#include "ttusbdecfe.h" + +static int debug; +static int output_pva; +static int enable_rc; + +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); +module_param(output_pva, int, 0444); +MODULE_PARM_DESC(output_pva, "Output PVA from dvr device (default:off)"); +module_param(enable_rc, int, 0644); +MODULE_PARM_DESC(enable_rc, "Turn on/off IR remote control(default: off)"); + +DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); + +#define dprintk if (debug) printk + +#define DRIVER_NAME "TechnoTrend/Hauppauge DEC USB" + +#define COMMAND_PIPE 0x03 +#define RESULT_PIPE 0x04 +#define IN_PIPE 0x08 +#define OUT_PIPE 0x07 +#define IRQ_PIPE 0x0A + +#define COMMAND_PACKET_SIZE 0x3c +#define ARM_PACKET_SIZE 0x1000 +#define IRQ_PACKET_SIZE 0x8 + +#define ISO_BUF_COUNT 0x04 +#define FRAMES_PER_ISO_BUF 0x04 +#define ISO_FRAME_SIZE 0x0380 + +#define MAX_PVA_LENGTH 6144 + +enum ttusb_dec_model { + TTUSB_DEC2000T, + TTUSB_DEC2540T, + TTUSB_DEC3000S +}; + +enum ttusb_dec_packet_type { + TTUSB_DEC_PACKET_PVA, + TTUSB_DEC_PACKET_SECTION, + TTUSB_DEC_PACKET_EMPTY +}; + +enum ttusb_dec_interface { + TTUSB_DEC_INTERFACE_INITIAL, + TTUSB_DEC_INTERFACE_IN, + TTUSB_DEC_INTERFACE_OUT +}; + +typedef int (dvb_filter_pes2ts_cb_t) (void *, unsigned char *); + +struct dvb_filter_pes2ts { + unsigned char buf[188]; + unsigned char cc; + dvb_filter_pes2ts_cb_t *cb; + void *priv; +}; + +struct ttusb_dec { + enum ttusb_dec_model model; + char *model_name; + char *firmware_name; + int can_playback; + + /* DVB bits */ + struct dvb_adapter adapter; + struct dmxdev dmxdev; + struct dvb_demux demux; + struct dmx_frontend frontend; + struct dvb_net dvb_net; + struct dvb_frontend* fe; + + u16 pid[DMX_PES_OTHER]; + + /* USB bits */ + struct usb_device *udev; + u8 trans_count; + unsigned int command_pipe; + unsigned int result_pipe; + unsigned int in_pipe; + unsigned int out_pipe; + unsigned int irq_pipe; + enum ttusb_dec_interface interface; + struct mutex usb_mutex; + + void *irq_buffer; + struct urb *irq_urb; + dma_addr_t irq_dma_handle; + void *iso_buffer; + struct urb *iso_urb[ISO_BUF_COUNT]; + int iso_stream_count; + struct mutex iso_mutex; + + u8 packet[MAX_PVA_LENGTH + 4]; + enum ttusb_dec_packet_type packet_type; + int packet_state; + int packet_length; + int packet_payload_length; + u16 next_packet_id; + + int pva_stream_count; + int filter_stream_count; + + struct dvb_filter_pes2ts a_pes2ts; + struct dvb_filter_pes2ts v_pes2ts; + + u8 v_pes[16 + MAX_PVA_LENGTH]; + int v_pes_length; + int v_pes_postbytes; + + struct list_head urb_frame_list; + struct tasklet_struct urb_tasklet; + spinlock_t urb_frame_list_lock; + + struct dvb_demux_filter *audio_filter; + struct dvb_demux_filter *video_filter; + struct list_head filter_info_list; + spinlock_t filter_info_list_lock; + + struct input_dev *rc_input_dev; + char rc_phys[64]; + + int active; /* Loaded successfully */ +}; + +struct urb_frame { + u8 data[ISO_FRAME_SIZE]; + int length; + struct list_head urb_frame_list; +}; + +struct filter_info { + u8 stream_id; + struct dvb_demux_filter *filter; + struct list_head filter_info_list; +}; + +static u16 rc_keys[] = { + KEY_POWER, + KEY_MUTE, + KEY_1, + KEY_2, + KEY_3, + KEY_4, + KEY_5, + KEY_6, + KEY_7, + KEY_8, + KEY_9, + KEY_0, + KEY_CHANNELUP, + KEY_VOLUMEDOWN, + KEY_OK, + KEY_VOLUMEUP, + KEY_CHANNELDOWN, + KEY_PREVIOUS, + KEY_ESC, + KEY_RED, + KEY_GREEN, + KEY_YELLOW, + KEY_BLUE, + KEY_OPTION, + KEY_M, + KEY_RADIO +}; + +static void dvb_filter_pes2ts_init(struct dvb_filter_pes2ts *p2ts, + unsigned short pid, + dvb_filter_pes2ts_cb_t *cb, void *priv) +{ + unsigned char *buf=p2ts->buf; + + buf[0]=0x47; + buf[1]=(pid>>8); + buf[2]=pid&0xff; + p2ts->cc=0; + p2ts->cb=cb; + p2ts->priv=priv; +} + +static int dvb_filter_pes2ts(struct dvb_filter_pes2ts *p2ts, + unsigned char *pes, int len, int payload_start) +{ + unsigned char *buf=p2ts->buf; + int ret=0, rest; + + //len=6+((pes[4]<<8)|pes[5]); + + if (payload_start) + buf[1]|=0x40; + else + buf[1]&=~0x40; + while (len>=184) { + buf[3]=0x10|((p2ts->cc++)&0x0f); + memcpy(buf+4, pes, 184); + if ((ret=p2ts->cb(p2ts->priv, buf))) + return ret; + len-=184; pes+=184; + buf[1]&=~0x40; + } + if (!len) + return 0; + buf[3]=0x30|((p2ts->cc++)&0x0f); + rest=183-len; + if (rest) { + buf[5]=0x00; + if (rest-1) + memset(buf+6, 0xff, rest-1); + } + buf[4]=rest; + memcpy(buf+5+rest, pes, len); + return p2ts->cb(p2ts->priv, buf); +} + +static void ttusb_dec_set_model(struct ttusb_dec *dec, + enum ttusb_dec_model model); + +static void ttusb_dec_handle_irq( struct urb *urb) +{ + struct ttusb_dec *dec = urb->context; + char *buffer = dec->irq_buffer; + int retval; + int index = buffer[4]; + + switch(urb->status) { + case 0: /*success*/ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + case -ETIME: + /* this urb is dead, cleanup */ + dprintk("%s:urb shutting down with status: %d\n", + __func__, urb->status); + return; + default: + dprintk("%s:nonzero status received: %d\n", + __func__,urb->status); + goto exit; + } + + if ((buffer[0] == 0x1) && (buffer[2] == 0x15)) { + /* + * IR - Event + * + * this is an fact a bit too simple implementation; + * the box also reports a keyrepeat signal + * (with buffer[3] == 0x40) in an interval of ~100ms. + * But to handle this correctly we had to imlemenent some + * kind of timer which signals a 'key up' event if no + * keyrepeat signal is received for lets say 200ms. + * this should/could be added later ... + * for now lets report each signal as a key down and up + */ + if (index - 1 < ARRAY_SIZE(rc_keys)) { + dprintk("%s:rc signal:%d\n", __func__, index); + input_report_key(dec->rc_input_dev, rc_keys[index - 1], 1); + input_sync(dec->rc_input_dev); + input_report_key(dec->rc_input_dev, rc_keys[index - 1], 0); + input_sync(dec->rc_input_dev); + } + } + +exit: + retval = usb_submit_urb(urb, GFP_ATOMIC); + if (retval) + printk("%s - usb_commit_urb failed with result: %d\n", + __func__, retval); +} + +static u16 crc16(u16 crc, const u8 *buf, size_t len) +{ + u16 tmp; + + while (len--) { + crc ^= *buf++; + crc ^= (u8)crc >> 4; + tmp = (u8)crc; + crc ^= (tmp ^ (tmp << 1)) << 4; + } + return crc; +} + +static int ttusb_dec_send_command(struct ttusb_dec *dec, const u8 command, + int param_length, const u8 params[], + int *result_length, u8 cmd_result[]) +{ + int result, actual_len; + u8 *b; + + dprintk("%s\n", __func__); + + b = kzalloc(COMMAND_PACKET_SIZE + 4, GFP_KERNEL); + if (!b) + return -ENOMEM; + + result = mutex_lock_interruptible(&dec->usb_mutex); + if (result) { + printk("%s: Failed to lock usb mutex.\n", __func__); + goto err_free; + } + + b[0] = 0xaa; + b[1] = ++dec->trans_count; + b[2] = command; + b[3] = param_length; + + if (params) + memcpy(&b[4], params, param_length); + + if (debug) { + printk(KERN_DEBUG "%s: command: %*ph\n", + __func__, param_length, b); + } + + result = usb_bulk_msg(dec->udev, dec->command_pipe, b, + COMMAND_PACKET_SIZE + 4, &actual_len, 1000); + + if (result) { + printk("%s: command bulk message failed: error %d\n", + __func__, result); + goto err_mutex_unlock; + } + + result = usb_bulk_msg(dec->udev, dec->result_pipe, b, + COMMAND_PACKET_SIZE + 4, &actual_len, 1000); + + if (result) { + printk("%s: result bulk message failed: error %d\n", + __func__, result); + goto err_mutex_unlock; + } else { + if (debug) { + printk(KERN_DEBUG "%s: result: %*ph\n", + __func__, actual_len, b); + } + + if (result_length) + *result_length = b[3]; + if (cmd_result && b[3] > 0) + memcpy(cmd_result, &b[4], b[3]); + } + +err_mutex_unlock: + mutex_unlock(&dec->usb_mutex); +err_free: + kfree(b); + return result; +} + +static int ttusb_dec_get_stb_state (struct ttusb_dec *dec, unsigned int *mode, + unsigned int *model, unsigned int *version) +{ + u8 c[COMMAND_PACKET_SIZE]; + int c_length; + int result; + __be32 tmp; + + dprintk("%s\n", __func__); + + result = ttusb_dec_send_command(dec, 0x08, 0, NULL, &c_length, c); + if (result) + return result; + + if (c_length >= 0x0c) { + if (mode != NULL) { + memcpy(&tmp, c, 4); + *mode = ntohl(tmp); + } + if (model != NULL) { + memcpy(&tmp, &c[4], 4); + *model = ntohl(tmp); + } + if (version != NULL) { + memcpy(&tmp, &c[8], 4); + *version = ntohl(tmp); + } + return 0; + } else { + return -ENOENT; + } +} + +static int ttusb_dec_audio_pes2ts_cb(void *priv, unsigned char *data) +{ + struct ttusb_dec *dec = priv; + + dec->audio_filter->feed->cb.ts(data, 188, NULL, 0, + &dec->audio_filter->feed->feed.ts, NULL); + + return 0; +} + +static int ttusb_dec_video_pes2ts_cb(void *priv, unsigned char *data) +{ + struct ttusb_dec *dec = priv; + + dec->video_filter->feed->cb.ts(data, 188, NULL, 0, + &dec->video_filter->feed->feed.ts, NULL); + + return 0; +} + +static void ttusb_dec_set_pids(struct ttusb_dec *dec) +{ + u8 b[] = { 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff }; + + __be16 pcr = htons(dec->pid[DMX_PES_PCR]); + __be16 audio = htons(dec->pid[DMX_PES_AUDIO]); + __be16 video = htons(dec->pid[DMX_PES_VIDEO]); + + dprintk("%s\n", __func__); + + memcpy(&b[0], &pcr, 2); + memcpy(&b[2], &audio, 2); + memcpy(&b[4], &video, 2); + + ttusb_dec_send_command(dec, 0x50, sizeof(b), b, NULL, NULL); + + dvb_filter_pes2ts_init(&dec->a_pes2ts, dec->pid[DMX_PES_AUDIO], + ttusb_dec_audio_pes2ts_cb, dec); + dvb_filter_pes2ts_init(&dec->v_pes2ts, dec->pid[DMX_PES_VIDEO], + ttusb_dec_video_pes2ts_cb, dec); + dec->v_pes_length = 0; + dec->v_pes_postbytes = 0; +} + +static void ttusb_dec_process_pva(struct ttusb_dec *dec, u8 *pva, int length) +{ + if (length < 8) { + printk("%s: packet too short - discarding\n", __func__); + return; + } + + if (length > 8 + MAX_PVA_LENGTH) { + printk("%s: packet too long - discarding\n", __func__); + return; + } + + switch (pva[2]) { + + case 0x01: { /* VideoStream */ + int prebytes = pva[5] & 0x03; + int postbytes = (pva[5] & 0x0c) >> 2; + __be16 v_pes_payload_length; + + if (output_pva) { + dec->video_filter->feed->cb.ts(pva, length, NULL, 0, + &dec->video_filter->feed->feed.ts, NULL); + return; + } + + if (dec->v_pes_postbytes > 0 && + dec->v_pes_postbytes == prebytes) { + memcpy(&dec->v_pes[dec->v_pes_length], + &pva[12], prebytes); + + dvb_filter_pes2ts(&dec->v_pes2ts, dec->v_pes, + dec->v_pes_length + prebytes, 1); + } + + if (pva[5] & 0x10) { + dec->v_pes[7] = 0x80; + dec->v_pes[8] = 0x05; + + dec->v_pes[9] = 0x21 | ((pva[8] & 0xc0) >> 5); + dec->v_pes[10] = ((pva[8] & 0x3f) << 2) | + ((pva[9] & 0xc0) >> 6); + dec->v_pes[11] = 0x01 | + ((pva[9] & 0x3f) << 2) | + ((pva[10] & 0x80) >> 6); + dec->v_pes[12] = ((pva[10] & 0x7f) << 1) | + ((pva[11] & 0xc0) >> 7); + dec->v_pes[13] = 0x01 | ((pva[11] & 0x7f) << 1); + + memcpy(&dec->v_pes[14], &pva[12 + prebytes], + length - 12 - prebytes); + dec->v_pes_length = 14 + length - 12 - prebytes; + } else { + dec->v_pes[7] = 0x00; + dec->v_pes[8] = 0x00; + + memcpy(&dec->v_pes[9], &pva[8], length - 8); + dec->v_pes_length = 9 + length - 8; + } + + dec->v_pes_postbytes = postbytes; + + if (dec->v_pes[9 + dec->v_pes[8]] == 0x00 && + dec->v_pes[10 + dec->v_pes[8]] == 0x00 && + dec->v_pes[11 + dec->v_pes[8]] == 0x01) + dec->v_pes[6] = 0x84; + else + dec->v_pes[6] = 0x80; + + v_pes_payload_length = htons(dec->v_pes_length - 6 + + postbytes); + memcpy(&dec->v_pes[4], &v_pes_payload_length, 2); + + if (postbytes == 0) + dvb_filter_pes2ts(&dec->v_pes2ts, dec->v_pes, + dec->v_pes_length, 1); + + break; + } + + case 0x02: /* MainAudioStream */ + if (output_pva) { + dec->audio_filter->feed->cb.ts(pva, length, NULL, 0, + &dec->audio_filter->feed->feed.ts, NULL); + return; + } + + dvb_filter_pes2ts(&dec->a_pes2ts, &pva[8], length - 8, + pva[5] & 0x10); + break; + + default: + printk("%s: unknown PVA type: %02x.\n", __func__, + pva[2]); + break; + } +} + +static void ttusb_dec_process_filter(struct ttusb_dec *dec, u8 *packet, + int length) +{ + struct list_head *item; + struct filter_info *finfo; + struct dvb_demux_filter *filter = NULL; + unsigned long flags; + u8 sid; + + sid = packet[1]; + spin_lock_irqsave(&dec->filter_info_list_lock, flags); + for (item = dec->filter_info_list.next; item != &dec->filter_info_list; + item = item->next) { + finfo = list_entry(item, struct filter_info, filter_info_list); + if (finfo->stream_id == sid) { + filter = finfo->filter; + break; + } + } + spin_unlock_irqrestore(&dec->filter_info_list_lock, flags); + + if (filter) + filter->feed->cb.sec(&packet[2], length - 2, NULL, 0, + &filter->filter, NULL); +} + +static void ttusb_dec_process_packet(struct ttusb_dec *dec) +{ + int i; + u16 csum = 0; + u16 packet_id; + + if (dec->packet_length % 2) { + printk("%s: odd sized packet - discarding\n", __func__); + return; + } + + for (i = 0; i < dec->packet_length; i += 2) + csum ^= ((dec->packet[i] << 8) + dec->packet[i + 1]); + + if (csum) { + printk("%s: checksum failed - discarding\n", __func__); + return; + } + + packet_id = dec->packet[dec->packet_length - 4] << 8; + packet_id += dec->packet[dec->packet_length - 3]; + + if ((packet_id != dec->next_packet_id) && dec->next_packet_id) { + printk("%s: warning: lost packets between %u and %u\n", + __func__, dec->next_packet_id - 1, packet_id); + } + + if (packet_id == 0xffff) + dec->next_packet_id = 0x8000; + else + dec->next_packet_id = packet_id + 1; + + switch (dec->packet_type) { + case TTUSB_DEC_PACKET_PVA: + if (dec->pva_stream_count) + ttusb_dec_process_pva(dec, dec->packet, + dec->packet_payload_length); + break; + + case TTUSB_DEC_PACKET_SECTION: + if (dec->filter_stream_count) + ttusb_dec_process_filter(dec, dec->packet, + dec->packet_payload_length); + break; + + case TTUSB_DEC_PACKET_EMPTY: + break; + } +} + +static void swap_bytes(u8 *b, int length) +{ + length -= length % 2; + for (; length; b += 2, length -= 2) + swap(*b, *(b + 1)); +} + +static void ttusb_dec_process_urb_frame(struct ttusb_dec *dec, u8 *b, + int length) +{ + swap_bytes(b, length); + + while (length) { + switch (dec->packet_state) { + + case 0: + case 1: + case 2: + if (*b++ == 0xaa) + dec->packet_state++; + else + dec->packet_state = 0; + + length--; + break; + + case 3: + if (*b == 0x00) { + dec->packet_state++; + dec->packet_length = 0; + } else if (*b != 0xaa) { + dec->packet_state = 0; + } + + b++; + length--; + break; + + case 4: + dec->packet[dec->packet_length++] = *b++; + + if (dec->packet_length == 2) { + if (dec->packet[0] == 'A' && + dec->packet[1] == 'V') { + dec->packet_type = + TTUSB_DEC_PACKET_PVA; + dec->packet_state++; + } else if (dec->packet[0] == 'S') { + dec->packet_type = + TTUSB_DEC_PACKET_SECTION; + dec->packet_state++; + } else if (dec->packet[0] == 0x00) { + dec->packet_type = + TTUSB_DEC_PACKET_EMPTY; + dec->packet_payload_length = 2; + dec->packet_state = 7; + } else { + printk("%s: unknown packet type: %02x%02x\n", + __func__, + dec->packet[0], dec->packet[1]); + dec->packet_state = 0; + } + } + + length--; + break; + + case 5: + dec->packet[dec->packet_length++] = *b++; + + if (dec->packet_type == TTUSB_DEC_PACKET_PVA && + dec->packet_length == 8) { + dec->packet_state++; + dec->packet_payload_length = 8 + + (dec->packet[6] << 8) + + dec->packet[7]; + } else if (dec->packet_type == + TTUSB_DEC_PACKET_SECTION && + dec->packet_length == 5) { + dec->packet_state++; + dec->packet_payload_length = 5 + + ((dec->packet[3] & 0x0f) << 8) + + dec->packet[4]; + } + + length--; + break; + + case 6: { + int remainder = dec->packet_payload_length - + dec->packet_length; + + if (length >= remainder) { + memcpy(dec->packet + dec->packet_length, + b, remainder); + dec->packet_length += remainder; + b += remainder; + length -= remainder; + dec->packet_state++; + } else { + memcpy(&dec->packet[dec->packet_length], + b, length); + dec->packet_length += length; + length = 0; + } + + break; + } + + case 7: { + int tail = 4; + + dec->packet[dec->packet_length++] = *b++; + + if (dec->packet_type == TTUSB_DEC_PACKET_SECTION && + dec->packet_payload_length % 2) + tail++; + + if (dec->packet_length == + dec->packet_payload_length + tail) { + ttusb_dec_process_packet(dec); + dec->packet_state = 0; + } + + length--; + break; + } + + default: + printk("%s: illegal packet state encountered.\n", + __func__); + dec->packet_state = 0; + } + } +} + +static void ttusb_dec_process_urb_frame_list(struct tasklet_struct *t) +{ + struct ttusb_dec *dec = from_tasklet(dec, t, urb_tasklet); + struct list_head *item; + struct urb_frame *frame; + unsigned long flags; + + while (1) { + spin_lock_irqsave(&dec->urb_frame_list_lock, flags); + if ((item = dec->urb_frame_list.next) != &dec->urb_frame_list) { + frame = list_entry(item, struct urb_frame, + urb_frame_list); + list_del(&frame->urb_frame_list); + } else { + spin_unlock_irqrestore(&dec->urb_frame_list_lock, + flags); + return; + } + spin_unlock_irqrestore(&dec->urb_frame_list_lock, flags); + + ttusb_dec_process_urb_frame(dec, frame->data, frame->length); + kfree(frame); + } +} + +static void ttusb_dec_process_urb(struct urb *urb) +{ + struct ttusb_dec *dec = urb->context; + + if (!urb->status) { + int i; + + for (i = 0; i < FRAMES_PER_ISO_BUF; i++) { + struct usb_iso_packet_descriptor *d; + u8 *b; + int length; + struct urb_frame *frame; + + d = &urb->iso_frame_desc[i]; + b = urb->transfer_buffer + d->offset; + length = d->actual_length; + + if ((frame = kmalloc(sizeof(struct urb_frame), + GFP_ATOMIC))) { + unsigned long flags; + + memcpy(frame->data, b, length); + frame->length = length; + + spin_lock_irqsave(&dec->urb_frame_list_lock, + flags); + list_add_tail(&frame->urb_frame_list, + &dec->urb_frame_list); + spin_unlock_irqrestore(&dec->urb_frame_list_lock, + flags); + + tasklet_schedule(&dec->urb_tasklet); + } + } + } else { + /* -ENOENT is expected when unlinking urbs */ + if (urb->status != -ENOENT) + dprintk("%s: urb error: %d\n", __func__, + urb->status); + } + + if (dec->iso_stream_count) + usb_submit_urb(urb, GFP_ATOMIC); +} + +static void ttusb_dec_setup_urbs(struct ttusb_dec *dec) +{ + int i, j, buffer_offset = 0; + + dprintk("%s\n", __func__); + + for (i = 0; i < ISO_BUF_COUNT; i++) { + int frame_offset = 0; + struct urb *urb = dec->iso_urb[i]; + + urb->dev = dec->udev; + urb->context = dec; + urb->complete = ttusb_dec_process_urb; + urb->pipe = dec->in_pipe; + urb->transfer_flags = URB_ISO_ASAP; + urb->interval = 1; + urb->number_of_packets = FRAMES_PER_ISO_BUF; + urb->transfer_buffer_length = ISO_FRAME_SIZE * + FRAMES_PER_ISO_BUF; + urb->transfer_buffer = dec->iso_buffer + buffer_offset; + buffer_offset += ISO_FRAME_SIZE * FRAMES_PER_ISO_BUF; + + for (j = 0; j < FRAMES_PER_ISO_BUF; j++) { + urb->iso_frame_desc[j].offset = frame_offset; + urb->iso_frame_desc[j].length = ISO_FRAME_SIZE; + frame_offset += ISO_FRAME_SIZE; + } + } +} + +static void ttusb_dec_stop_iso_xfer(struct ttusb_dec *dec) +{ + int i; + + dprintk("%s\n", __func__); + + if (mutex_lock_interruptible(&dec->iso_mutex)) + return; + + dec->iso_stream_count--; + + if (!dec->iso_stream_count) { + for (i = 0; i < ISO_BUF_COUNT; i++) + usb_kill_urb(dec->iso_urb[i]); + } + + mutex_unlock(&dec->iso_mutex); +} + +/* Setting the interface of the DEC tends to take down the USB communications + * for a short period, so it's important not to call this function just before + * trying to talk to it. + */ +static int ttusb_dec_set_interface(struct ttusb_dec *dec, + enum ttusb_dec_interface interface) +{ + int result = 0; + u8 b[] = { 0x05 }; + + if (interface != dec->interface) { + switch (interface) { + case TTUSB_DEC_INTERFACE_INITIAL: + result = usb_set_interface(dec->udev, 0, 0); + break; + case TTUSB_DEC_INTERFACE_IN: + result = ttusb_dec_send_command(dec, 0x80, sizeof(b), + b, NULL, NULL); + if (result) + return result; + result = usb_set_interface(dec->udev, 0, 8); + break; + case TTUSB_DEC_INTERFACE_OUT: + result = usb_set_interface(dec->udev, 0, 1); + break; + } + + if (result) + return result; + + dec->interface = interface; + } + + return 0; +} + +static int ttusb_dec_start_iso_xfer(struct ttusb_dec *dec) +{ + int i, result; + + dprintk("%s\n", __func__); + + if (mutex_lock_interruptible(&dec->iso_mutex)) + return -EAGAIN; + + if (!dec->iso_stream_count) { + ttusb_dec_setup_urbs(dec); + + dec->packet_state = 0; + dec->v_pes_postbytes = 0; + dec->next_packet_id = 0; + + for (i = 0; i < ISO_BUF_COUNT; i++) { + if ((result = usb_submit_urb(dec->iso_urb[i], + GFP_ATOMIC))) { + printk("%s: failed urb submission %d: error %d\n", + __func__, i, result); + + while (i) { + usb_kill_urb(dec->iso_urb[i - 1]); + i--; + } + + mutex_unlock(&dec->iso_mutex); + return result; + } + } + } + + dec->iso_stream_count++; + + mutex_unlock(&dec->iso_mutex); + + return 0; +} + +static int ttusb_dec_start_ts_feed(struct dvb_demux_feed *dvbdmxfeed) +{ + struct dvb_demux *dvbdmx = dvbdmxfeed->demux; + struct ttusb_dec *dec = dvbdmx->priv; + u8 b0[] = { 0x05 }; + int result = 0; + + dprintk("%s\n", __func__); + + dprintk(" ts_type:"); + + if (dvbdmxfeed->ts_type & TS_DECODER) + dprintk(" TS_DECODER"); + + if (dvbdmxfeed->ts_type & TS_PACKET) + dprintk(" TS_PACKET"); + + if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY) + dprintk(" TS_PAYLOAD_ONLY"); + + dprintk("\n"); + + switch (dvbdmxfeed->pes_type) { + + case DMX_PES_VIDEO: + dprintk(" pes_type: DMX_PES_VIDEO\n"); + dec->pid[DMX_PES_PCR] = dvbdmxfeed->pid; + dec->pid[DMX_PES_VIDEO] = dvbdmxfeed->pid; + dec->video_filter = dvbdmxfeed->filter; + ttusb_dec_set_pids(dec); + break; + + case DMX_PES_AUDIO: + dprintk(" pes_type: DMX_PES_AUDIO\n"); + dec->pid[DMX_PES_AUDIO] = dvbdmxfeed->pid; + dec->audio_filter = dvbdmxfeed->filter; + ttusb_dec_set_pids(dec); + break; + + case DMX_PES_TELETEXT: + dec->pid[DMX_PES_TELETEXT] = dvbdmxfeed->pid; + dprintk(" pes_type: DMX_PES_TELETEXT(not supported)\n"); + return -ENOSYS; + + case DMX_PES_PCR: + dprintk(" pes_type: DMX_PES_PCR\n"); + dec->pid[DMX_PES_PCR] = dvbdmxfeed->pid; + ttusb_dec_set_pids(dec); + break; + + case DMX_PES_OTHER: + dprintk(" pes_type: DMX_PES_OTHER(not supported)\n"); + return -ENOSYS; + + default: + dprintk(" pes_type: unknown (%d)\n", dvbdmxfeed->pes_type); + return -EINVAL; + + } + + result = ttusb_dec_send_command(dec, 0x80, sizeof(b0), b0, NULL, NULL); + if (result) + return result; + + dec->pva_stream_count++; + return ttusb_dec_start_iso_xfer(dec); +} + +static int ttusb_dec_start_sec_feed(struct dvb_demux_feed *dvbdmxfeed) +{ + struct ttusb_dec *dec = dvbdmxfeed->demux->priv; + u8 b0[] = { 0x00, 0x00, 0x00, 0x01, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0xff, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00 }; + __be16 pid; + u8 c[COMMAND_PACKET_SIZE]; + int c_length; + int result; + struct filter_info *finfo; + unsigned long flags; + u8 x = 1; + + dprintk("%s\n", __func__); + + pid = htons(dvbdmxfeed->pid); + memcpy(&b0[0], &pid, 2); + memcpy(&b0[4], &x, 1); + memcpy(&b0[5], &dvbdmxfeed->filter->filter.filter_value[0], 1); + + result = ttusb_dec_send_command(dec, 0x60, sizeof(b0), b0, + &c_length, c); + + if (!result) { + if (c_length == 2) { + if (!(finfo = kmalloc(sizeof(struct filter_info), + GFP_ATOMIC))) + return -ENOMEM; + + finfo->stream_id = c[1]; + finfo->filter = dvbdmxfeed->filter; + + spin_lock_irqsave(&dec->filter_info_list_lock, flags); + list_add_tail(&finfo->filter_info_list, + &dec->filter_info_list); + spin_unlock_irqrestore(&dec->filter_info_list_lock, + flags); + + dvbdmxfeed->priv = finfo; + + dec->filter_stream_count++; + return ttusb_dec_start_iso_xfer(dec); + } + + return -EAGAIN; + } else + return result; +} + +static int ttusb_dec_start_feed(struct dvb_demux_feed *dvbdmxfeed) +{ + struct dvb_demux *dvbdmx = dvbdmxfeed->demux; + + dprintk("%s\n", __func__); + + if (!dvbdmx->dmx.frontend) + return -EINVAL; + + dprintk(" pid: 0x%04X\n", dvbdmxfeed->pid); + + switch (dvbdmxfeed->type) { + + case DMX_TYPE_TS: + return ttusb_dec_start_ts_feed(dvbdmxfeed); + + case DMX_TYPE_SEC: + return ttusb_dec_start_sec_feed(dvbdmxfeed); + + default: + dprintk(" type: unknown (%d)\n", dvbdmxfeed->type); + return -EINVAL; + + } +} + +static int ttusb_dec_stop_ts_feed(struct dvb_demux_feed *dvbdmxfeed) +{ + struct ttusb_dec *dec = dvbdmxfeed->demux->priv; + u8 b0[] = { 0x00 }; + + ttusb_dec_send_command(dec, 0x81, sizeof(b0), b0, NULL, NULL); + + dec->pva_stream_count--; + + ttusb_dec_stop_iso_xfer(dec); + + return 0; +} + +static int ttusb_dec_stop_sec_feed(struct dvb_demux_feed *dvbdmxfeed) +{ + struct ttusb_dec *dec = dvbdmxfeed->demux->priv; + u8 b0[] = { 0x00, 0x00 }; + struct filter_info *finfo = dvbdmxfeed->priv; + unsigned long flags; + + b0[1] = finfo->stream_id; + spin_lock_irqsave(&dec->filter_info_list_lock, flags); + list_del(&finfo->filter_info_list); + spin_unlock_irqrestore(&dec->filter_info_list_lock, flags); + kfree(finfo); + ttusb_dec_send_command(dec, 0x62, sizeof(b0), b0, NULL, NULL); + + dec->filter_stream_count--; + + ttusb_dec_stop_iso_xfer(dec); + + return 0; +} + +static int ttusb_dec_stop_feed(struct dvb_demux_feed *dvbdmxfeed) +{ + dprintk("%s\n", __func__); + + switch (dvbdmxfeed->type) { + case DMX_TYPE_TS: + return ttusb_dec_stop_ts_feed(dvbdmxfeed); + + case DMX_TYPE_SEC: + return ttusb_dec_stop_sec_feed(dvbdmxfeed); + } + + return 0; +} + +static void ttusb_dec_free_iso_urbs(struct ttusb_dec *dec) +{ + int i; + + dprintk("%s\n", __func__); + + for (i = 0; i < ISO_BUF_COUNT; i++) + usb_free_urb(dec->iso_urb[i]); + kfree(dec->iso_buffer); +} + +static int ttusb_dec_alloc_iso_urbs(struct ttusb_dec *dec) +{ + int i; + + dprintk("%s\n", __func__); + + dec->iso_buffer = kcalloc(FRAMES_PER_ISO_BUF * ISO_BUF_COUNT, + ISO_FRAME_SIZE, GFP_KERNEL); + if (!dec->iso_buffer) + return -ENOMEM; + + for (i = 0; i < ISO_BUF_COUNT; i++) { + struct urb *urb; + + if (!(urb = usb_alloc_urb(FRAMES_PER_ISO_BUF, GFP_ATOMIC))) { + ttusb_dec_free_iso_urbs(dec); + return -ENOMEM; + } + + dec->iso_urb[i] = urb; + } + + ttusb_dec_setup_urbs(dec); + + return 0; +} + +static void ttusb_dec_init_tasklet(struct ttusb_dec *dec) +{ + spin_lock_init(&dec->urb_frame_list_lock); + INIT_LIST_HEAD(&dec->urb_frame_list); + tasklet_setup(&dec->urb_tasklet, ttusb_dec_process_urb_frame_list); +} + +static int ttusb_init_rc( struct ttusb_dec *dec) +{ + struct input_dev *input_dev; + u8 b[] = { 0x00, 0x01 }; + int i; + int err; + + usb_make_path(dec->udev, dec->rc_phys, sizeof(dec->rc_phys)); + strlcat(dec->rc_phys, "/input0", sizeof(dec->rc_phys)); + + input_dev = input_allocate_device(); + if (!input_dev) + return -ENOMEM; + + input_dev->name = "ttusb_dec remote control"; + input_dev->phys = dec->rc_phys; + input_dev->evbit[0] = BIT_MASK(EV_KEY); + input_dev->keycodesize = sizeof(u16); + input_dev->keycodemax = 0x1a; + input_dev->keycode = rc_keys; + + for (i = 0; i < ARRAY_SIZE(rc_keys); i++) + set_bit(rc_keys[i], input_dev->keybit); + + err = input_register_device(input_dev); + if (err) { + input_free_device(input_dev); + return err; + } + + dec->rc_input_dev = input_dev; + if (usb_submit_urb(dec->irq_urb, GFP_KERNEL)) + printk("%s: usb_submit_urb failed\n",__func__); + /* enable irq pipe */ + ttusb_dec_send_command(dec,0xb0,sizeof(b),b,NULL,NULL); + + return 0; +} + +static void ttusb_dec_init_v_pes(struct ttusb_dec *dec) +{ + dprintk("%s\n", __func__); + + dec->v_pes[0] = 0x00; + dec->v_pes[1] = 0x00; + dec->v_pes[2] = 0x01; + dec->v_pes[3] = 0xe0; +} + +static int ttusb_dec_init_usb(struct ttusb_dec *dec) +{ + int result; + + dprintk("%s\n", __func__); + + mutex_init(&dec->usb_mutex); + mutex_init(&dec->iso_mutex); + + dec->command_pipe = usb_sndbulkpipe(dec->udev, COMMAND_PIPE); + dec->result_pipe = usb_rcvbulkpipe(dec->udev, RESULT_PIPE); + dec->in_pipe = usb_rcvisocpipe(dec->udev, IN_PIPE); + dec->out_pipe = usb_sndisocpipe(dec->udev, OUT_PIPE); + dec->irq_pipe = usb_rcvintpipe(dec->udev, IRQ_PIPE); + + if(enable_rc) { + dec->irq_urb = usb_alloc_urb(0, GFP_KERNEL); + if(!dec->irq_urb) { + return -ENOMEM; + } + dec->irq_buffer = usb_alloc_coherent(dec->udev,IRQ_PACKET_SIZE, + GFP_KERNEL, &dec->irq_dma_handle); + if(!dec->irq_buffer) { + usb_free_urb(dec->irq_urb); + return -ENOMEM; + } + usb_fill_int_urb(dec->irq_urb, dec->udev,dec->irq_pipe, + dec->irq_buffer, IRQ_PACKET_SIZE, + ttusb_dec_handle_irq, dec, 1); + dec->irq_urb->transfer_dma = dec->irq_dma_handle; + dec->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + } + + result = ttusb_dec_alloc_iso_urbs(dec); + if (result) { + usb_free_urb(dec->irq_urb); + usb_free_coherent(dec->udev, IRQ_PACKET_SIZE, + dec->irq_buffer, dec->irq_dma_handle); + } + return result; +} + +static int ttusb_dec_boot_dsp(struct ttusb_dec *dec) +{ + int i, j, actual_len, result, size, trans_count; + u8 b0[] = { 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x61, 0x00 }; + u8 b1[] = { 0x61 }; + u8 *b; + char idstring[21]; + const u8 *firmware = NULL; + size_t firmware_size = 0; + u16 firmware_csum = 0; + __be16 firmware_csum_ns; + __be32 firmware_size_nl; + u32 crc32_csum, crc32_check; + __be32 tmp; + const struct firmware *fw_entry = NULL; + + dprintk("%s\n", __func__); + + result = request_firmware(&fw_entry, dec->firmware_name, &dec->udev->dev); + if (result) { + printk(KERN_ERR "%s: Firmware (%s) unavailable.\n", + __func__, dec->firmware_name); + return result; + } + + firmware = fw_entry->data; + firmware_size = fw_entry->size; + + if (firmware_size < 60) { + printk("%s: firmware size too small for DSP code (%zu < 60).\n", + __func__, firmware_size); + release_firmware(fw_entry); + return -ENOENT; + } + + /* a 32 bit checksum over the first 56 bytes of the DSP Code is stored + at offset 56 of file, so use it to check if the firmware file is + valid. */ + crc32_csum = crc32(~0L, firmware, 56) ^ ~0L; + memcpy(&tmp, &firmware[56], 4); + crc32_check = ntohl(tmp); + if (crc32_csum != crc32_check) { + printk("%s: crc32 check of DSP code failed (calculated 0x%08x != 0x%08x in file), file invalid.\n", + __func__, crc32_csum, crc32_check); + release_firmware(fw_entry); + return -ENOENT; + } + memcpy(idstring, &firmware[36], 20); + idstring[20] = '\0'; + printk(KERN_INFO "ttusb_dec: found DSP code \"%s\".\n", idstring); + + firmware_size_nl = htonl(firmware_size); + memcpy(b0, &firmware_size_nl, 4); + firmware_csum = crc16(~0, firmware, firmware_size) ^ ~0; + firmware_csum_ns = htons(firmware_csum); + memcpy(&b0[6], &firmware_csum_ns, 2); + + result = ttusb_dec_send_command(dec, 0x41, sizeof(b0), b0, NULL, NULL); + + if (result) { + release_firmware(fw_entry); + return result; + } + + trans_count = 0; + j = 0; + + b = kmalloc(ARM_PACKET_SIZE, GFP_KERNEL); + if (b == NULL) { + release_firmware(fw_entry); + return -ENOMEM; + } + + for (i = 0; i < firmware_size; i += COMMAND_PACKET_SIZE) { + size = firmware_size - i; + if (size > COMMAND_PACKET_SIZE) + size = COMMAND_PACKET_SIZE; + + b[j + 0] = 0xaa; + b[j + 1] = trans_count++; + b[j + 2] = 0xf0; + b[j + 3] = size; + memcpy(&b[j + 4], &firmware[i], size); + + j += COMMAND_PACKET_SIZE + 4; + + if (j >= ARM_PACKET_SIZE) { + result = usb_bulk_msg(dec->udev, dec->command_pipe, b, + ARM_PACKET_SIZE, &actual_len, + 100); + j = 0; + } else if (size < COMMAND_PACKET_SIZE) { + result = usb_bulk_msg(dec->udev, dec->command_pipe, b, + j - COMMAND_PACKET_SIZE + size, + &actual_len, 100); + } + } + + result = ttusb_dec_send_command(dec, 0x43, sizeof(b1), b1, NULL, NULL); + + release_firmware(fw_entry); + kfree(b); + + return result; +} + +static int ttusb_dec_init_stb(struct ttusb_dec *dec) +{ + int result; + unsigned int mode = 0, model = 0, version = 0; + + dprintk("%s\n", __func__); + + result = ttusb_dec_get_stb_state(dec, &mode, &model, &version); + if (result) + return result; + + if (!mode) { + if (version == 0xABCDEFAB) + printk(KERN_INFO "ttusb_dec: no version info in Firmware\n"); + else + printk(KERN_INFO "ttusb_dec: Firmware %x.%02x%c%c\n", + version >> 24, (version >> 16) & 0xff, + (version >> 8) & 0xff, version & 0xff); + + result = ttusb_dec_boot_dsp(dec); + if (result) + return result; + } else { + /* We can't trust the USB IDs that some firmwares + give the box */ + switch (model) { + case 0x00070001: + case 0x00070008: + case 0x0007000c: + ttusb_dec_set_model(dec, TTUSB_DEC3000S); + break; + case 0x00070009: + case 0x00070013: + ttusb_dec_set_model(dec, TTUSB_DEC2000T); + break; + case 0x00070011: + ttusb_dec_set_model(dec, TTUSB_DEC2540T); + break; + default: + printk(KERN_ERR "%s: unknown model returned by firmware (%08x) - please report\n", + __func__, model); + return -ENOENT; + } + if (version >= 0x01770000) + dec->can_playback = 1; + } + return 0; +} + +static int ttusb_dec_init_dvb(struct ttusb_dec *dec) +{ + int result; + + dprintk("%s\n", __func__); + + if ((result = dvb_register_adapter(&dec->adapter, + dec->model_name, THIS_MODULE, + &dec->udev->dev, + adapter_nr)) < 0) { + printk("%s: dvb_register_adapter failed: error %d\n", + __func__, result); + + return result; + } + + dec->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING; + + dec->demux.priv = (void *)dec; + dec->demux.filternum = 31; + dec->demux.feednum = 31; + dec->demux.start_feed = ttusb_dec_start_feed; + dec->demux.stop_feed = ttusb_dec_stop_feed; + dec->demux.write_to_decoder = NULL; + + if ((result = dvb_dmx_init(&dec->demux)) < 0) { + printk("%s: dvb_dmx_init failed: error %d\n", __func__, + result); + + dvb_unregister_adapter(&dec->adapter); + + return result; + } + + dec->dmxdev.filternum = 32; + dec->dmxdev.demux = &dec->demux.dmx; + dec->dmxdev.capabilities = 0; + + if ((result = dvb_dmxdev_init(&dec->dmxdev, &dec->adapter)) < 0) { + printk("%s: dvb_dmxdev_init failed: error %d\n", + __func__, result); + + dvb_dmx_release(&dec->demux); + dvb_unregister_adapter(&dec->adapter); + + return result; + } + + dec->frontend.source = DMX_FRONTEND_0; + + if ((result = dec->demux.dmx.add_frontend(&dec->demux.dmx, + &dec->frontend)) < 0) { + printk("%s: dvb_dmx_init failed: error %d\n", __func__, + result); + + dvb_dmxdev_release(&dec->dmxdev); + dvb_dmx_release(&dec->demux); + dvb_unregister_adapter(&dec->adapter); + + return result; + } + + if ((result = dec->demux.dmx.connect_frontend(&dec->demux.dmx, + &dec->frontend)) < 0) { + printk("%s: dvb_dmx_init failed: error %d\n", __func__, + result); + + dec->demux.dmx.remove_frontend(&dec->demux.dmx, &dec->frontend); + dvb_dmxdev_release(&dec->dmxdev); + dvb_dmx_release(&dec->demux); + dvb_unregister_adapter(&dec->adapter); + + return result; + } + + dvb_net_init(&dec->adapter, &dec->dvb_net, &dec->demux.dmx); + + return 0; +} + +static void ttusb_dec_exit_dvb(struct ttusb_dec *dec) +{ + dprintk("%s\n", __func__); + + dvb_net_release(&dec->dvb_net); + dec->demux.dmx.close(&dec->demux.dmx); + dec->demux.dmx.remove_frontend(&dec->demux.dmx, &dec->frontend); + dvb_dmxdev_release(&dec->dmxdev); + dvb_dmx_release(&dec->demux); + if (dec->fe) { + dvb_unregister_frontend(dec->fe); + dvb_frontend_detach(dec->fe); + } + dvb_unregister_adapter(&dec->adapter); +} + +static void ttusb_dec_exit_rc(struct ttusb_dec *dec) +{ + dprintk("%s\n", __func__); + + if (dec->rc_input_dev) { + input_unregister_device(dec->rc_input_dev); + dec->rc_input_dev = NULL; + } +} + + +static void ttusb_dec_exit_usb(struct ttusb_dec *dec) +{ + int i; + + dprintk("%s\n", __func__); + + if (enable_rc) { + /* we have to check whether the irq URB is already submitted. + * As the irq is submitted after the interface is changed, + * this is the best method i figured out. + * Any others?*/ + if (dec->interface == TTUSB_DEC_INTERFACE_IN) + usb_kill_urb(dec->irq_urb); + + usb_free_urb(dec->irq_urb); + + usb_free_coherent(dec->udev, IRQ_PACKET_SIZE, + dec->irq_buffer, dec->irq_dma_handle); + } + + dec->iso_stream_count = 0; + + for (i = 0; i < ISO_BUF_COUNT; i++) + usb_kill_urb(dec->iso_urb[i]); + + ttusb_dec_free_iso_urbs(dec); +} + +static void ttusb_dec_exit_tasklet(struct ttusb_dec *dec) +{ + struct list_head *item; + struct urb_frame *frame; + + tasklet_kill(&dec->urb_tasklet); + + while ((item = dec->urb_frame_list.next) != &dec->urb_frame_list) { + frame = list_entry(item, struct urb_frame, urb_frame_list); + list_del(&frame->urb_frame_list); + kfree(frame); + } +} + +static void ttusb_dec_init_filters(struct ttusb_dec *dec) +{ + INIT_LIST_HEAD(&dec->filter_info_list); + spin_lock_init(&dec->filter_info_list_lock); +} + +static void ttusb_dec_exit_filters(struct ttusb_dec *dec) +{ + struct list_head *item; + struct filter_info *finfo; + + while ((item = dec->filter_info_list.next) != &dec->filter_info_list) { + finfo = list_entry(item, struct filter_info, filter_info_list); + list_del(&finfo->filter_info_list); + kfree(finfo); + } +} + +static int fe_send_command(struct dvb_frontend* fe, const u8 command, + int param_length, const u8 params[], + int *result_length, u8 cmd_result[]) +{ + struct ttusb_dec* dec = fe->dvb->priv; + return ttusb_dec_send_command(dec, command, param_length, params, result_length, cmd_result); +} + +static const struct ttusbdecfe_config fe_config = { + .send_command = fe_send_command +}; + +static int ttusb_dec_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct usb_device *udev; + struct ttusb_dec *dec; + int result; + + dprintk("%s\n", __func__); + + udev = interface_to_usbdev(intf); + + if (!(dec = kzalloc(sizeof(struct ttusb_dec), GFP_KERNEL))) { + printk("%s: couldn't allocate memory.\n", __func__); + return -ENOMEM; + } + + usb_set_intfdata(intf, (void *)dec); + + switch (id->idProduct) { + case 0x1006: + ttusb_dec_set_model(dec, TTUSB_DEC3000S); + break; + + case 0x1008: + ttusb_dec_set_model(dec, TTUSB_DEC2000T); + break; + + case 0x1009: + ttusb_dec_set_model(dec, TTUSB_DEC2540T); + break; + } + + dec->udev = udev; + + result = ttusb_dec_init_usb(dec); + if (result) + goto err_usb; + result = ttusb_dec_init_stb(dec); + if (result) + goto err_stb; + result = ttusb_dec_init_dvb(dec); + if (result) + goto err_stb; + + dec->adapter.priv = dec; + switch (id->idProduct) { + case 0x1006: + dec->fe = ttusbdecfe_dvbs_attach(&fe_config); + break; + + case 0x1008: + case 0x1009: + dec->fe = ttusbdecfe_dvbt_attach(&fe_config); + break; + } + + if (dec->fe == NULL) { + printk("dvb-ttusb-dec: A frontend driver was not found for device [%04x:%04x]\n", + le16_to_cpu(dec->udev->descriptor.idVendor), + le16_to_cpu(dec->udev->descriptor.idProduct)); + } else { + if (dvb_register_frontend(&dec->adapter, dec->fe)) { + printk("budget-ci: Frontend registration failed!\n"); + if (dec->fe->ops.release) + dec->fe->ops.release(dec->fe); + dec->fe = NULL; + } + } + + ttusb_dec_init_v_pes(dec); + ttusb_dec_init_filters(dec); + ttusb_dec_init_tasklet(dec); + + dec->active = 1; + + ttusb_dec_set_interface(dec, TTUSB_DEC_INTERFACE_IN); + + if (enable_rc) + ttusb_init_rc(dec); + + return 0; +err_stb: + ttusb_dec_exit_usb(dec); +err_usb: + kfree(dec); + return result; +} + +static void ttusb_dec_disconnect(struct usb_interface *intf) +{ + struct ttusb_dec *dec = usb_get_intfdata(intf); + + usb_set_intfdata(intf, NULL); + + dprintk("%s\n", __func__); + + if (dec->active) { + ttusb_dec_exit_tasklet(dec); + ttusb_dec_exit_filters(dec); + if(enable_rc) + ttusb_dec_exit_rc(dec); + ttusb_dec_exit_usb(dec); + ttusb_dec_exit_dvb(dec); + } + + kfree(dec); +} + +static void ttusb_dec_set_model(struct ttusb_dec *dec, + enum ttusb_dec_model model) +{ + dec->model = model; + + switch (model) { + case TTUSB_DEC2000T: + dec->model_name = "DEC2000-t"; + dec->firmware_name = "dvb-ttusb-dec-2000t.fw"; + break; + + case TTUSB_DEC2540T: + dec->model_name = "DEC2540-t"; + dec->firmware_name = "dvb-ttusb-dec-2540t.fw"; + break; + + case TTUSB_DEC3000S: + dec->model_name = "DEC3000-s"; + dec->firmware_name = "dvb-ttusb-dec-3000s.fw"; + break; + } +} + +static const struct usb_device_id ttusb_dec_table[] = { + {USB_DEVICE(0x0b48, 0x1006)}, /* DEC3000-s */ + /*{USB_DEVICE(0x0b48, 0x1007)}, Unconfirmed */ + {USB_DEVICE(0x0b48, 0x1008)}, /* DEC2000-t */ + {USB_DEVICE(0x0b48, 0x1009)}, /* DEC2540-t */ + {} +}; + +static struct usb_driver ttusb_dec_driver = { + .name = "ttusb-dec", + .probe = ttusb_dec_probe, + .disconnect = ttusb_dec_disconnect, + .id_table = ttusb_dec_table, +}; + +module_usb_driver(ttusb_dec_driver); + +MODULE_AUTHOR("Alex Woods <linux-dvb@giblets.org>"); +MODULE_DESCRIPTION(DRIVER_NAME); +MODULE_LICENSE("GPL"); +MODULE_DEVICE_TABLE(usb, ttusb_dec_table); diff --git a/drivers/media/usb/ttusb-dec/ttusbdecfe.c b/drivers/media/usb/ttusb-dec/ttusbdecfe.c new file mode 100644 index 0000000000..dff6bf532c --- /dev/null +++ b/drivers/media/usb/ttusb-dec/ttusbdecfe.c @@ -0,0 +1,289 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * TTUSB DEC Frontend Driver + * + * Copyright (C) 2003-2004 Alex Woods <linux-dvb@giblets.org> + */ + +#include <media/dvb_frontend.h> +#include "ttusbdecfe.h" + + +#define LOF_HI 10600000 +#define LOF_LO 9750000 + +struct ttusbdecfe_state { + + /* configuration settings */ + const struct ttusbdecfe_config* config; + + struct dvb_frontend frontend; + + u8 hi_band; + u8 voltage; +}; + + +static int ttusbdecfe_dvbs_read_status(struct dvb_frontend *fe, + enum fe_status *status) +{ + *status = FE_HAS_SIGNAL | FE_HAS_VITERBI | + FE_HAS_SYNC | FE_HAS_CARRIER | FE_HAS_LOCK; + return 0; +} + + +static int ttusbdecfe_dvbt_read_status(struct dvb_frontend *fe, + enum fe_status *status) +{ + struct ttusbdecfe_state* state = fe->demodulator_priv; + u8 b[] = { 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00 }; + u8 result[4]; + int len, ret; + + *status=0; + + ret=state->config->send_command(fe, 0x73, sizeof(b), b, &len, result); + if(ret) + return ret; + + if(len != 4) { + printk(KERN_ERR "%s: unexpected reply\n", __func__); + return -EIO; + } + + switch(result[3]) { + case 1: /* not tuned yet */ + case 2: /* no signal/no lock*/ + break; + case 3: /* signal found and locked*/ + *status = FE_HAS_SIGNAL | FE_HAS_VITERBI | + FE_HAS_SYNC | FE_HAS_CARRIER | FE_HAS_LOCK; + break; + case 4: + *status = FE_TIMEDOUT; + break; + default: + pr_info("%s: returned unknown value: %d\n", + __func__, result[3]); + return -EIO; + } + + return 0; +} + +static int ttusbdecfe_dvbt_set_frontend(struct dvb_frontend *fe) +{ + struct dtv_frontend_properties *p = &fe->dtv_property_cache; + struct ttusbdecfe_state *state = fe->demodulator_priv; + u8 b[] = { 0x00, 0x00, 0x00, 0x03, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x01, + 0x00, 0x00, 0x00, 0xff, + 0x00, 0x00, 0x00, 0xff }; + + __be32 freq = htonl(p->frequency / 1000); + memcpy(&b[4], &freq, sizeof (u32)); + state->config->send_command(fe, 0x71, sizeof(b), b, NULL, NULL); + + return 0; +} + +static int ttusbdecfe_dvbt_get_tune_settings(struct dvb_frontend* fe, + struct dvb_frontend_tune_settings* fesettings) +{ + fesettings->min_delay_ms = 1500; + /* Drift compensation makes no sense for DVB-T */ + fesettings->step_size = 0; + fesettings->max_drift = 0; + return 0; +} + +static int ttusbdecfe_dvbs_set_frontend(struct dvb_frontend *fe) +{ + struct dtv_frontend_properties *p = &fe->dtv_property_cache; + struct ttusbdecfe_state *state = fe->demodulator_priv; + + u8 b[] = { 0x00, 0x00, 0x00, 0x01, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x01, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00 }; + __be32 freq; + __be32 sym_rate; + __be32 band; + __be32 lnb_voltage; + + freq = htonl(p->frequency + + (state->hi_band ? LOF_HI : LOF_LO)); + memcpy(&b[4], &freq, sizeof(u32)); + sym_rate = htonl(p->symbol_rate); + memcpy(&b[12], &sym_rate, sizeof(u32)); + band = htonl(state->hi_band ? LOF_HI : LOF_LO); + memcpy(&b[24], &band, sizeof(u32)); + lnb_voltage = htonl(state->voltage); + memcpy(&b[28], &lnb_voltage, sizeof(u32)); + + state->config->send_command(fe, 0x71, sizeof(b), b, NULL, NULL); + + return 0; +} + +static int ttusbdecfe_dvbs_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd *cmd) +{ + struct ttusbdecfe_state *state = fe->demodulator_priv; + u8 b[] = { 0x00, 0xff, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00 }; + + if (cmd->msg_len > sizeof(b) - 4) + return -EINVAL; + + memcpy(&b[4], cmd->msg, cmd->msg_len); + + state->config->send_command(fe, 0x72, + sizeof(b) - (6 - cmd->msg_len), b, + NULL, NULL); + + return 0; +} + + +static int ttusbdecfe_dvbs_set_tone(struct dvb_frontend *fe, + enum fe_sec_tone_mode tone) +{ + struct ttusbdecfe_state *state = fe->demodulator_priv; + + state->hi_band = (SEC_TONE_ON == tone); + + return 0; +} + + +static int ttusbdecfe_dvbs_set_voltage(struct dvb_frontend *fe, + enum fe_sec_voltage voltage) +{ + struct ttusbdecfe_state *state = fe->demodulator_priv; + + switch (voltage) { + case SEC_VOLTAGE_13: + state->voltage = 13; + break; + case SEC_VOLTAGE_18: + state->voltage = 18; + break; + default: + return -EINVAL; + } + + return 0; +} + +static void ttusbdecfe_release(struct dvb_frontend* fe) +{ + struct ttusbdecfe_state *state = fe->demodulator_priv; + kfree(state); +} + +static const struct dvb_frontend_ops ttusbdecfe_dvbt_ops; + +struct dvb_frontend* ttusbdecfe_dvbt_attach(const struct ttusbdecfe_config* config) +{ + struct ttusbdecfe_state* state = NULL; + + /* allocate memory for the internal state */ + state = kmalloc(sizeof(struct ttusbdecfe_state), GFP_KERNEL); + if (state == NULL) + return NULL; + + /* setup the state */ + state->config = config; + + /* create dvb_frontend */ + memcpy(&state->frontend.ops, &ttusbdecfe_dvbt_ops, sizeof(struct dvb_frontend_ops)); + state->frontend.demodulator_priv = state; + return &state->frontend; +} + +static const struct dvb_frontend_ops ttusbdecfe_dvbs_ops; + +struct dvb_frontend* ttusbdecfe_dvbs_attach(const struct ttusbdecfe_config* config) +{ + struct ttusbdecfe_state* state = NULL; + + /* allocate memory for the internal state */ + state = kmalloc(sizeof(struct ttusbdecfe_state), GFP_KERNEL); + if (state == NULL) + return NULL; + + /* setup the state */ + state->config = config; + state->voltage = 0; + state->hi_band = 0; + + /* create dvb_frontend */ + memcpy(&state->frontend.ops, &ttusbdecfe_dvbs_ops, sizeof(struct dvb_frontend_ops)); + state->frontend.demodulator_priv = state; + return &state->frontend; +} + +static const struct dvb_frontend_ops ttusbdecfe_dvbt_ops = { + .delsys = { SYS_DVBT }, + .info = { + .name = "TechnoTrend/Hauppauge DEC2000-t Frontend", + .frequency_min_hz = 51 * MHz, + .frequency_max_hz = 858 * MHz, + .frequency_stepsize_hz = 62500, + .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | + FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | + FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO | + FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO | + FE_CAN_HIERARCHY_AUTO, + }, + + .release = ttusbdecfe_release, + + .set_frontend = ttusbdecfe_dvbt_set_frontend, + + .get_tune_settings = ttusbdecfe_dvbt_get_tune_settings, + + .read_status = ttusbdecfe_dvbt_read_status, +}; + +static const struct dvb_frontend_ops ttusbdecfe_dvbs_ops = { + .delsys = { SYS_DVBS }, + .info = { + .name = "TechnoTrend/Hauppauge DEC3000-s Frontend", + .frequency_min_hz = 950 * MHz, + .frequency_max_hz = 2150 * MHz, + .frequency_stepsize_hz = 125 * kHz, + .symbol_rate_min = 1000000, /* guessed */ + .symbol_rate_max = 45000000, /* guessed */ + .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | + FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | + FE_CAN_QPSK + }, + + .release = ttusbdecfe_release, + + .set_frontend = ttusbdecfe_dvbs_set_frontend, + + .read_status = ttusbdecfe_dvbs_read_status, + + .diseqc_send_master_cmd = ttusbdecfe_dvbs_diseqc_send_master_cmd, + .set_voltage = ttusbdecfe_dvbs_set_voltage, + .set_tone = ttusbdecfe_dvbs_set_tone, +}; + +MODULE_DESCRIPTION("TTUSB DEC DVB-T/S Demodulator driver"); +MODULE_AUTHOR("Alex Woods/Andrew de Quincey"); +MODULE_LICENSE("GPL"); + +EXPORT_SYMBOL(ttusbdecfe_dvbt_attach); +EXPORT_SYMBOL(ttusbdecfe_dvbs_attach); diff --git a/drivers/media/usb/ttusb-dec/ttusbdecfe.h b/drivers/media/usb/ttusb-dec/ttusbdecfe.h new file mode 100644 index 0000000000..73828bb225 --- /dev/null +++ b/drivers/media/usb/ttusb-dec/ttusbdecfe.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * TTUSB DEC Driver + * + * Copyright (C) 2003-2004 Alex Woods <linux-dvb@giblets.org> + */ + +#ifndef TTUSBDECFE_H +#define TTUSBDECFE_H + +#include <linux/dvb/frontend.h> + +struct ttusbdecfe_config +{ + int (*send_command)(struct dvb_frontend* fe, const u8 command, + int param_length, const u8 params[], + int *result_length, u8 cmd_result[]); +}; + +extern struct dvb_frontend* ttusbdecfe_dvbs_attach(const struct ttusbdecfe_config* config); + +extern struct dvb_frontend* ttusbdecfe_dvbt_attach(const struct ttusbdecfe_config* config); + +#endif // TTUSBDECFE_H |