d855497edb
Implement V4L2 driver for the Hauppauge PVR USB2 TV tuner. The Hauppauge PVR USB2 is a USB connected TV tuner with an embedded cx23416 hardware MPEG2 encoder. There are two major variants of this device; this driver handles both. Any V4L2 application which understands MPEG2 video stream data should be able to work with this device. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
499 lines
15 KiB
C
499 lines
15 KiB
C
/*
|
|
*
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2005 Mike Isely <isely@pobox.com>
|
|
* Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>
|
|
*
|
|
* 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
|
|
*
|
|
* 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#include <linux/device.h> // for linux/firmware.h
|
|
#include <linux/firmware.h>
|
|
#include <linux/videodev2.h>
|
|
#include <media/cx2341x.h>
|
|
#include "pvrusb2-util.h"
|
|
#include "pvrusb2-encoder.h"
|
|
#include "pvrusb2-hdw-internal.h"
|
|
#include "pvrusb2-debug.h"
|
|
|
|
static u32 pvr_tbl_emphasis [] = {
|
|
[PVR2_CVAL_AUDIOEMPHASIS_NONE] = 0x0 << 12,
|
|
[PVR2_CVAL_AUDIOEMPHASIS_50_15] = 0x1 << 12,
|
|
[PVR2_CVAL_AUDIOEMPHASIS_CCITT] = 0x3 << 12,
|
|
};
|
|
|
|
static u32 pvr_tbl_srate[] = {
|
|
[PVR2_CVAL_SRATE_48] = 0x01,
|
|
[PVR2_CVAL_SRATE_44_1] = 0x00,
|
|
};
|
|
|
|
static u32 pvr_tbl_audiobitrate[] = {
|
|
[PVR2_CVAL_AUDIOBITRATE_384] = 0xe << 4,
|
|
[PVR2_CVAL_AUDIOBITRATE_320] = 0xd << 4,
|
|
[PVR2_CVAL_AUDIOBITRATE_256] = 0xc << 4,
|
|
[PVR2_CVAL_AUDIOBITRATE_224] = 0xb << 4,
|
|
[PVR2_CVAL_AUDIOBITRATE_192] = 0xa << 4,
|
|
[PVR2_CVAL_AUDIOBITRATE_160] = 0x9 << 4,
|
|
[PVR2_CVAL_AUDIOBITRATE_128] = 0x8 << 4,
|
|
[PVR2_CVAL_AUDIOBITRATE_112] = 0x7 << 4,
|
|
[PVR2_CVAL_AUDIOBITRATE_96] = 0x6 << 4,
|
|
[PVR2_CVAL_AUDIOBITRATE_80] = 0x5 << 4,
|
|
[PVR2_CVAL_AUDIOBITRATE_64] = 0x4 << 4,
|
|
[PVR2_CVAL_AUDIOBITRATE_56] = 0x3 << 4,
|
|
[PVR2_CVAL_AUDIOBITRATE_48] = 0x2 << 4,
|
|
[PVR2_CVAL_AUDIOBITRATE_32] = 0x1 << 4,
|
|
[PVR2_CVAL_AUDIOBITRATE_VBR] = 0x0 << 4,
|
|
};
|
|
|
|
|
|
/* Firmware mailbox flags - definitions found from ivtv */
|
|
#define IVTV_MBOX_FIRMWARE_DONE 0x00000004
|
|
#define IVTV_MBOX_DRIVER_DONE 0x00000002
|
|
#define IVTV_MBOX_DRIVER_BUSY 0x00000001
|
|
|
|
|
|
static int pvr2_write_encoder_words(struct pvr2_hdw *hdw,
|
|
const u32 *data, unsigned int dlen)
|
|
{
|
|
unsigned int idx;
|
|
int ret;
|
|
unsigned int offs = 0;
|
|
unsigned int chunkCnt;
|
|
|
|
/*
|
|
|
|
Format: First byte must be 0x01. Remaining 32 bit words are
|
|
spread out into chunks of 7 bytes each, little-endian ordered,
|
|
offset at zero within each 2 blank bytes following and a
|
|
single byte that is 0x44 plus the offset of the word. Repeat
|
|
request for additional words, with offset adjusted
|
|
accordingly.
|
|
|
|
*/
|
|
while (dlen) {
|
|
chunkCnt = 8;
|
|
if (chunkCnt > dlen) chunkCnt = dlen;
|
|
memset(hdw->cmd_buffer,0,sizeof(hdw->cmd_buffer));
|
|
hdw->cmd_buffer[0] = 0x01;
|
|
for (idx = 0; idx < chunkCnt; idx++) {
|
|
hdw->cmd_buffer[1+(idx*7)+6] = 0x44 + idx + offs;
|
|
PVR2_DECOMPOSE_LE(hdw->cmd_buffer, 1+(idx*7),
|
|
data[idx]);
|
|
}
|
|
ret = pvr2_send_request(hdw,
|
|
hdw->cmd_buffer,1+(chunkCnt*7),
|
|
0,0);
|
|
if (ret) return ret;
|
|
data += chunkCnt;
|
|
dlen -= chunkCnt;
|
|
offs += chunkCnt;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int pvr2_read_encoder_words(struct pvr2_hdw *hdw,int statusFl,
|
|
u32 *data, unsigned int dlen)
|
|
{
|
|
unsigned int idx;
|
|
int ret;
|
|
unsigned int offs = 0;
|
|
unsigned int chunkCnt;
|
|
|
|
/*
|
|
|
|
Format: First byte must be 0x02 (status check) or 0x28 (read
|
|
back block of 32 bit words). Next 6 bytes must be zero,
|
|
followed by a single byte of 0x44+offset for portion to be
|
|
read. Returned data is packed set of 32 bits words that were
|
|
read.
|
|
|
|
*/
|
|
|
|
while (dlen) {
|
|
chunkCnt = 16;
|
|
if (chunkCnt > dlen) chunkCnt = dlen;
|
|
memset(hdw->cmd_buffer,0,sizeof(hdw->cmd_buffer));
|
|
hdw->cmd_buffer[0] = statusFl ? 0x02 : 0x28;
|
|
hdw->cmd_buffer[7] = 0x44 + offs;
|
|
ret = pvr2_send_request(hdw,
|
|
hdw->cmd_buffer,8,
|
|
hdw->cmd_buffer,chunkCnt * 4);
|
|
if (ret) return ret;
|
|
|
|
for (idx = 0; idx < chunkCnt; idx++) {
|
|
data[idx] = PVR2_COMPOSE_LE(hdw->cmd_buffer,idx*4);
|
|
}
|
|
data += chunkCnt;
|
|
dlen -= chunkCnt;
|
|
offs += chunkCnt;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int pvr2_write_encoder_vcmd (struct pvr2_hdw *hdw, u8 cmd,
|
|
int args, ...)
|
|
{
|
|
unsigned int poll_count;
|
|
int ret = 0;
|
|
va_list vl;
|
|
unsigned int idx;
|
|
u32 wrData[16];
|
|
u32 rdData[32];
|
|
|
|
/*
|
|
|
|
The encoder seems to speak entirely using blocks 32 bit words.
|
|
In ivtv driver terms, this is a mailbox which we populate with
|
|
data and watch what the hardware does with it. The first word
|
|
is a set of flags used to control the transaction, the second
|
|
word is the command to execute, the third byte is zero (ivtv
|
|
driver suggests that this is some kind of return value), and
|
|
the fourth byte is a specified timeout (windows driver always
|
|
uses 0x00060000 except for one case when it is zero). All
|
|
successive words are the argument words for the command.
|
|
|
|
First, write out the entire set of words, with the first word
|
|
being zero.
|
|
|
|
Next, write out just the first word again, but set it to
|
|
IVTV_MBOX_DRIVER_DONE | IVTV_DRIVER_BUSY this time (which
|
|
probably means "go").
|
|
|
|
Next, read back 16 words as status. Check the first word,
|
|
which should have IVTV_MBOX_FIRMWARE_DONE set. If however
|
|
that bit is not set, then the command isn't done so repeat the
|
|
read.
|
|
|
|
Next, read back 32 words and compare with the original
|
|
arugments. Hopefully they will match.
|
|
|
|
Finally, write out just the first word again, but set it to
|
|
0x0 this time (which probably means "idle").
|
|
|
|
*/
|
|
|
|
|
|
LOCK_TAKE(hdw->ctl_lock); do {
|
|
|
|
wrData[0] = 0;
|
|
wrData[1] = cmd;
|
|
wrData[2] = 0;
|
|
wrData[3] = 0x00060000;
|
|
va_start(vl, args);
|
|
for (idx = 0; idx < args; idx++) {
|
|
wrData[idx+4] = va_arg(vl, u32);
|
|
}
|
|
va_end(vl);
|
|
args += 4;
|
|
while (args < sizeof(wrData)/sizeof(wrData[0])) {
|
|
wrData[args++] = 0;
|
|
}
|
|
|
|
ret = pvr2_write_encoder_words(hdw,wrData,args);
|
|
if (ret) break;
|
|
wrData[0] = IVTV_MBOX_DRIVER_DONE|IVTV_MBOX_DRIVER_BUSY;
|
|
ret = pvr2_write_encoder_words(hdw,wrData,1);
|
|
if (ret) break;
|
|
poll_count = 0;
|
|
while (1) {
|
|
if (poll_count < 10000000) poll_count++;
|
|
ret = pvr2_read_encoder_words(hdw,!0,rdData,1);
|
|
if (ret) break;
|
|
if (rdData[0] & IVTV_MBOX_FIRMWARE_DONE) {
|
|
break;
|
|
}
|
|
if (poll_count == 100) {
|
|
pvr2_trace(
|
|
PVR2_TRACE_ERROR_LEGS,
|
|
"***WARNING*** device's encoder"
|
|
" appears to be stuck"
|
|
" (status=0%08x)",rdData[0]);
|
|
pvr2_trace(
|
|
PVR2_TRACE_ERROR_LEGS,
|
|
"Encoder command: 0x%02x",cmd);
|
|
for (idx = 4; idx < args; idx++) {
|
|
pvr2_trace(
|
|
PVR2_TRACE_ERROR_LEGS,
|
|
"Encoder arg%d: 0x%08x",
|
|
idx-3,wrData[idx]);
|
|
}
|
|
pvr2_trace(
|
|
PVR2_TRACE_ERROR_LEGS,
|
|
"Giving up waiting."
|
|
" It is likely that"
|
|
" this is a bad idea...");
|
|
ret = -EBUSY;
|
|
break;
|
|
}
|
|
}
|
|
if (ret) break;
|
|
wrData[0] = 0x7;
|
|
ret = pvr2_read_encoder_words(hdw,0,rdData,16);
|
|
if (ret) break;
|
|
for (idx = 0; idx < args; idx++) {
|
|
if (rdData[idx] != wrData[idx]) {
|
|
pvr2_trace(
|
|
PVR2_TRACE_DEBUG,
|
|
"pvr2_encoder idx %02x mismatch exp:"
|
|
" %08x got: %08x",
|
|
idx,wrData[idx],rdData[idx]);
|
|
}
|
|
}
|
|
|
|
wrData[0] = 0x0;
|
|
ret = pvr2_write_encoder_words(hdw,wrData,1);
|
|
if (ret) break;
|
|
|
|
} while(0); LOCK_GIVE(hdw->ctl_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int pvr2_encoder_configure(struct pvr2_hdw *hdw)
|
|
{
|
|
int ret = 0, audio, i;
|
|
v4l2_std_id vd_std = hdw->std_mask_cur;
|
|
int height = hdw->res_ver_val;
|
|
int width = hdw->res_hor_val;
|
|
int height_full = !hdw->interlace_val;
|
|
|
|
int is_30fps, is_ntsc;
|
|
|
|
if (vd_std & V4L2_STD_NTSC) {
|
|
is_ntsc=1;
|
|
is_30fps=1;
|
|
} else if (vd_std & V4L2_STD_PAL_M) {
|
|
is_ntsc=0;
|
|
is_30fps=1;
|
|
} else {
|
|
is_ntsc=0;
|
|
is_30fps=0;
|
|
}
|
|
|
|
pvr2_trace(PVR2_TRACE_ENCODER,"pvr2_encoder_configure");
|
|
|
|
/* set stream output port. Some notes here: The ivtv-derived
|
|
encoder documentation says that this command only gets a
|
|
single argument. However the Windows driver for the model
|
|
29xxx series hardware has been sending 0x01 as a second
|
|
argument, while the Windows driver for the model 24xxx
|
|
series hardware has been sending 0x02 as a second argument.
|
|
Confusing matters further are the observations that 0x01
|
|
for that second argument simply won't work on the 24xxx
|
|
hardware, while 0x02 will work on the 29xxx - except that
|
|
when we use 0x02 then xawtv breaks due to a loss of
|
|
synchronization with the mpeg packet headers. While xawtv
|
|
should be fixed to let it resync better (I did try to
|
|
contact Gerd about this but he has not answered), it has
|
|
also been determined that sending 0x00 as this mystery
|
|
second argument seems to work on both hardware models AND
|
|
xawtv works again. So we're going to send 0x00. */
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_SET_OUTPUT_PORT, 2,
|
|
0x01, 0x00);
|
|
|
|
/* set the Program Index Information. We want I,P,B frames (max 400) */
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_SET_PGM_INDEX_INFO, 2,
|
|
0x07, 0x0190);
|
|
|
|
/* NOTE : windows driver sends these */
|
|
/* Mike Isely <isely@pobox.com> 7-Mar-2006 The windows driver
|
|
sends the following commands but if we do the same then
|
|
many apps are no longer able to read the video stream.
|
|
Leaving these out seems to do no harm at all, so they're
|
|
commented out for that reason. */
|
|
#ifdef notdef
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_MISC,4, 5,0,0,0);
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_MISC,4, 3,1,0,0);
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_MISC,4, 8,0,0,0);
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_MISC,4, 4,1,0,0);
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_MISC,4, 0,3,0,0);
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_MISC,4,15,0,0,0);
|
|
#endif
|
|
|
|
/* Strange compared to ivtv data. */
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_SET_NUM_VSYNC_LINES, 2,
|
|
0xf0, 0xf0);
|
|
|
|
/* setup firmware to notify us about some events (don't know why...) */
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_SET_EVENT_NOTIFICATION, 4,
|
|
0, 0, 0x10000000, 0xffffffff);
|
|
|
|
/* set fps to 25 or 30 (1 or 0)*/
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_SET_FRAME_RATE, 1,
|
|
is_30fps ? 0 : 1);
|
|
|
|
/* set encoding resolution */
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_SET_FRAME_SIZE, 2,
|
|
(height_full ? height : (height / 2)),
|
|
width);
|
|
/* set encoding aspect ratio to 4:3 */
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_SET_ASPECT_RATIO, 1,
|
|
0x02);
|
|
|
|
/* VBI */
|
|
|
|
if (hdw->config == pvr2_config_vbi) {
|
|
int lines = 2 * (is_30fps ? 12 : 18);
|
|
int size = (4*((lines*1443+3)/4)) / lines;
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_SET_VBI_CONFIG, 7,
|
|
0xbd05, 1, 4,
|
|
0x25256262, 0x387f7f7f,
|
|
lines , size);
|
|
// 0x25256262, 0x13135454, lines , size);
|
|
/* select vbi lines */
|
|
#define line_used(l) (is_30fps ? (l >= 10 && l <= 21) : (l >= 6 && l <= 23))
|
|
for (i = 2 ; i <= 24 ; i++){
|
|
ret |= pvr2_write_encoder_vcmd(
|
|
hdw,CX2341X_ENC_SET_VBI_LINE, 5,
|
|
i-1,line_used(i), 0, 0, 0);
|
|
ret |= pvr2_write_encoder_vcmd(
|
|
hdw,CX2341X_ENC_SET_VBI_LINE, 5,
|
|
(i-1) | (1 << 31),
|
|
line_used(i), 0, 0, 0);
|
|
}
|
|
} else {
|
|
ret |= pvr2_write_encoder_vcmd(
|
|
hdw,CX2341X_ENC_SET_VBI_LINE, 5,
|
|
0xffffffff,0,0,0,0);
|
|
}
|
|
|
|
/* set stream type, depending on resolution. */
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_SET_STREAM_TYPE, 1,
|
|
height_full ? 0x0a : 0x0b);
|
|
/* set video bitrate */
|
|
ret |= pvr2_write_encoder_vcmd(
|
|
hdw, CX2341X_ENC_SET_BIT_RATE, 3,
|
|
(hdw->vbr_val ? 1 : 0),
|
|
hdw->videobitrate_val,
|
|
hdw->videopeak_val / 400);
|
|
/* setup GOP structure (GOP size = 0f or 0c, 3-1 = 2 B-frames) */
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_SET_GOP_PROPERTIES, 2,
|
|
is_30fps ? 0x0f : 0x0c, 0x03);
|
|
|
|
/* enable 3:2 pulldown */
|
|
ret |= pvr2_write_encoder_vcmd(hdw,CX2341X_ENC_SET_3_2_PULLDOWN,1,0);
|
|
|
|
/* set GOP open/close property (open) */
|
|
ret |= pvr2_write_encoder_vcmd(hdw,CX2341X_ENC_SET_GOP_CLOSURE,1,0);
|
|
|
|
/* set audio stream properties 0x40b9? 0100 0000 1011 1001 */
|
|
audio = (pvr_tbl_audiobitrate[hdw->audiobitrate_val] |
|
|
pvr_tbl_srate[hdw->srate_val] |
|
|
hdw->audiolayer_val << 2 |
|
|
(hdw->audiocrc_val ? 1 << 14 : 0) |
|
|
pvr_tbl_emphasis[hdw->audioemphasis_val]);
|
|
|
|
ret |= pvr2_write_encoder_vcmd(hdw,CX2341X_ENC_SET_AUDIO_PROPERTIES,1,
|
|
audio);
|
|
|
|
/* set dynamic noise reduction filter to manual, Horiz/Vert */
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_SET_DNR_FILTER_MODE, 2,
|
|
0, 0x03);
|
|
|
|
/* dynamic noise reduction filter param */
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_SET_DNR_FILTER_PROPS, 2
|
|
, 0, 0);
|
|
|
|
/* dynamic noise reduction median filter */
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_SET_CORING_LEVELS, 4,
|
|
0, 0xff, 0, 0xff);
|
|
|
|
/* spacial prefiler parameter */
|
|
ret |= pvr2_write_encoder_vcmd(hdw,
|
|
CX2341X_ENC_SET_SPATIAL_FILTER_TYPE, 2,
|
|
0x01, 0x01);
|
|
|
|
/* initialize video input */
|
|
ret |= pvr2_write_encoder_vcmd(hdw, CX2341X_ENC_INITIALIZE_INPUT, 0);
|
|
|
|
if (!ret) {
|
|
hdw->subsys_enabled_mask |= (1<<PVR2_SUBSYS_B_ENC_CFG);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int pvr2_encoder_start(struct pvr2_hdw *hdw)
|
|
{
|
|
int status;
|
|
|
|
/* unmask some interrupts */
|
|
pvr2_write_register(hdw, 0x0048, 0xbfffffff);
|
|
|
|
/* change some GPIO data */
|
|
pvr2_hdw_gpio_chg_dir(hdw,0xffffffff,0x00000481);
|
|
pvr2_hdw_gpio_chg_out(hdw,0xffffffff,0x00000000);
|
|
|
|
if (hdw->config == pvr2_config_vbi) {
|
|
status = pvr2_write_encoder_vcmd(hdw,CX2341X_ENC_START_CAPTURE,2,
|
|
0x01,0x14);
|
|
} else if (hdw->config == pvr2_config_mpeg) {
|
|
status = pvr2_write_encoder_vcmd(hdw,CX2341X_ENC_START_CAPTURE,2,
|
|
0,0x13);
|
|
} else {
|
|
status = pvr2_write_encoder_vcmd(hdw,CX2341X_ENC_START_CAPTURE,2,
|
|
0,0x13);
|
|
}
|
|
if (!status) {
|
|
hdw->subsys_enabled_mask |= (1<<PVR2_SUBSYS_B_ENC_RUN);
|
|
}
|
|
return status;
|
|
}
|
|
|
|
int pvr2_encoder_stop(struct pvr2_hdw *hdw)
|
|
{
|
|
int status;
|
|
|
|
/* mask all interrupts */
|
|
pvr2_write_register(hdw, 0x0048, 0xffffffff);
|
|
|
|
if (hdw->config == pvr2_config_vbi) {
|
|
status = pvr2_write_encoder_vcmd(hdw,CX2341X_ENC_STOP_CAPTURE,3,
|
|
0x01,0x01,0x14);
|
|
} else if (hdw->config == pvr2_config_mpeg) {
|
|
status = pvr2_write_encoder_vcmd(hdw,CX2341X_ENC_STOP_CAPTURE,3,
|
|
0x01,0,0x13);
|
|
} else {
|
|
status = pvr2_write_encoder_vcmd(hdw,CX2341X_ENC_STOP_CAPTURE,3,
|
|
0x01,0,0x13);
|
|
}
|
|
|
|
/* change some GPIO data */
|
|
/* Note: Bit d7 of dir appears to control the LED. So we shut it
|
|
off here. */
|
|
pvr2_hdw_gpio_chg_dir(hdw,0xffffffff,0x00000401);
|
|
pvr2_hdw_gpio_chg_out(hdw,0xffffffff,0x00000000);
|
|
|
|
if (!status) {
|
|
hdw->subsys_enabled_mask &= ~(1<<PVR2_SUBSYS_B_ENC_RUN);
|
|
}
|
|
return status;
|
|
}
|
|
|
|
|
|
/*
|
|
Stuff for Emacs to see, in order to encourage consistent editing style:
|
|
*** Local Variables: ***
|
|
*** mode: c ***
|
|
*** fill-column: 70 ***
|
|
*** tab-width: 8 ***
|
|
*** c-basic-offset: 8 ***
|
|
*** End: ***
|
|
*/
|