550 lines
14 KiB
C
550 lines
14 KiB
C
/*
|
|
*
|
|
*
|
|
* 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 "pvrusb2-util.h"
|
|
#include "pvrusb2-encoder.h"
|
|
#include "pvrusb2-hdw-internal.h"
|
|
#include "pvrusb2-debug.h"
|
|
#include "pvrusb2-fx2-cmd.h"
|
|
|
|
|
|
|
|
/* 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
|
|
|
|
#define MBOX_BASE 0x44
|
|
|
|
|
|
static int pvr2_encoder_write_words(struct pvr2_hdw *hdw,
|
|
unsigned int offs,
|
|
const u32 *data, unsigned int dlen)
|
|
{
|
|
unsigned int idx,addr;
|
|
unsigned int bAddr;
|
|
int ret;
|
|
unsigned int chunkCnt;
|
|
|
|
/*
|
|
|
|
Format: First byte must be 0x01. Remaining 32 bit words are
|
|
spread out into chunks of 7 bytes each, with the first 4 bytes
|
|
being the data word (little endian), and the next 3 bytes
|
|
being the address where that data word is to be written (big
|
|
endian). 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));
|
|
bAddr = 0;
|
|
hdw->cmd_buffer[bAddr++] = FX2CMD_MEM_WRITE_DWORD;
|
|
for (idx = 0; idx < chunkCnt; idx++) {
|
|
addr = idx + offs;
|
|
hdw->cmd_buffer[bAddr+6] = (addr & 0xffu);
|
|
hdw->cmd_buffer[bAddr+5] = ((addr>>8) & 0xffu);
|
|
hdw->cmd_buffer[bAddr+4] = ((addr>>16) & 0xffu);
|
|
PVR2_DECOMPOSE_LE(hdw->cmd_buffer, bAddr,data[idx]);
|
|
bAddr += 7;
|
|
}
|
|
ret = pvr2_send_request(hdw,
|
|
hdw->cmd_buffer,1+(chunkCnt*7),
|
|
NULL,0);
|
|
if (ret) return ret;
|
|
data += chunkCnt;
|
|
dlen -= chunkCnt;
|
|
offs += chunkCnt;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int pvr2_encoder_read_words(struct pvr2_hdw *hdw,
|
|
unsigned int offs,
|
|
u32 *data, unsigned int dlen)
|
|
{
|
|
unsigned int idx;
|
|
int ret;
|
|
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 MBOX_BASE+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;
|
|
if (chunkCnt < 16) chunkCnt = 1;
|
|
hdw->cmd_buffer[0] =
|
|
((chunkCnt == 1) ?
|
|
FX2CMD_MEM_READ_DWORD : FX2CMD_MEM_READ_64BYTES);
|
|
hdw->cmd_buffer[1] = 0;
|
|
hdw->cmd_buffer[2] = 0;
|
|
hdw->cmd_buffer[3] = 0;
|
|
hdw->cmd_buffer[4] = 0;
|
|
hdw->cmd_buffer[5] = ((offs>>16) & 0xffu);
|
|
hdw->cmd_buffer[6] = ((offs>>8) & 0xffu);
|
|
hdw->cmd_buffer[7] = (offs & 0xffu);
|
|
ret = pvr2_send_request(hdw,
|
|
hdw->cmd_buffer,8,
|
|
hdw->cmd_buffer,
|
|
(chunkCnt == 1 ? 4 : 16 * 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;
|
|
}
|
|
|
|
|
|
/* This prototype is set up to be compatible with the
|
|
cx2341x_mbox_func prototype in cx2341x.h, which should be in
|
|
kernels 2.6.18 or later. We do this so that we can enable
|
|
cx2341x.ko to write to our encoder (by handing it a pointer to this
|
|
function). For earlier kernels this doesn't really matter. */
|
|
static int pvr2_encoder_cmd(void *ctxt,
|
|
u32 cmd,
|
|
int arg_cnt_send,
|
|
int arg_cnt_recv,
|
|
u32 *argp)
|
|
{
|
|
unsigned int poll_count;
|
|
unsigned int try_count = 0;
|
|
int retry_flag;
|
|
int ret = 0;
|
|
unsigned int idx;
|
|
/* These sizes look to be limited by the FX2 firmware implementation */
|
|
u32 wrData[16];
|
|
u32 rdData[16];
|
|
struct pvr2_hdw *hdw = (struct pvr2_hdw *)ctxt;
|
|
|
|
|
|
/*
|
|
|
|
The encoder seems to speak entirely using blocks 32 bit words.
|
|
In ivtv driver terms, this is a mailbox at MBOX_BASE 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 the return count words. 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 until it is set.
|
|
|
|
Finally, write out just the first word again, but set it to
|
|
0x0 this time (which probably means "idle").
|
|
|
|
*/
|
|
|
|
if (arg_cnt_send > (ARRAY_SIZE(wrData) - 4)) {
|
|
pvr2_trace(
|
|
PVR2_TRACE_ERROR_LEGS,
|
|
"Failed to write cx23416 command"
|
|
" - too many input arguments"
|
|
" (was given %u limit %lu)",
|
|
arg_cnt_send, (long unsigned) ARRAY_SIZE(wrData) - 4);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (arg_cnt_recv > (ARRAY_SIZE(rdData) - 4)) {
|
|
pvr2_trace(
|
|
PVR2_TRACE_ERROR_LEGS,
|
|
"Failed to write cx23416 command"
|
|
" - too many return arguments"
|
|
" (was given %u limit %lu)",
|
|
arg_cnt_recv, (long unsigned) ARRAY_SIZE(rdData) - 4);
|
|
return -EINVAL;
|
|
}
|
|
|
|
|
|
LOCK_TAKE(hdw->ctl_lock); do {
|
|
|
|
if (!hdw->state_encoder_ok) {
|
|
ret = -EIO;
|
|
break;
|
|
}
|
|
|
|
retry_flag = 0;
|
|
try_count++;
|
|
ret = 0;
|
|
wrData[0] = 0;
|
|
wrData[1] = cmd;
|
|
wrData[2] = 0;
|
|
wrData[3] = 0x00060000;
|
|
for (idx = 0; idx < arg_cnt_send; idx++) {
|
|
wrData[idx+4] = argp[idx];
|
|
}
|
|
for (; idx < ARRAY_SIZE(wrData) - 4; idx++) {
|
|
wrData[idx+4] = 0;
|
|
}
|
|
|
|
ret = pvr2_encoder_write_words(hdw,MBOX_BASE,wrData,idx);
|
|
if (ret) break;
|
|
wrData[0] = IVTV_MBOX_DRIVER_DONE|IVTV_MBOX_DRIVER_BUSY;
|
|
ret = pvr2_encoder_write_words(hdw,MBOX_BASE,wrData,1);
|
|
if (ret) break;
|
|
poll_count = 0;
|
|
while (1) {
|
|
poll_count++;
|
|
ret = pvr2_encoder_read_words(hdw,MBOX_BASE,rdData,
|
|
arg_cnt_recv+4);
|
|
if (ret) {
|
|
break;
|
|
}
|
|
if (rdData[0] & IVTV_MBOX_FIRMWARE_DONE) {
|
|
break;
|
|
}
|
|
if (rdData[0] && (poll_count < 1000)) continue;
|
|
if (!rdData[0]) {
|
|
retry_flag = !0;
|
|
pvr2_trace(
|
|
PVR2_TRACE_ERROR_LEGS,
|
|
"Encoder timed out waiting for us"
|
|
"; arranging to retry");
|
|
} else {
|
|
pvr2_trace(
|
|
PVR2_TRACE_ERROR_LEGS,
|
|
"***WARNING*** device's encoder"
|
|
" appears to be stuck"
|
|
" (status=0x%08x)",rdData[0]);
|
|
}
|
|
pvr2_trace(
|
|
PVR2_TRACE_ERROR_LEGS,
|
|
"Encoder command: 0x%02x",cmd);
|
|
for (idx = 4; idx < arg_cnt_send; idx++) {
|
|
pvr2_trace(
|
|
PVR2_TRACE_ERROR_LEGS,
|
|
"Encoder arg%d: 0x%08x",
|
|
idx-3,wrData[idx]);
|
|
}
|
|
ret = -EBUSY;
|
|
break;
|
|
}
|
|
if (retry_flag) {
|
|
if (try_count < 20) continue;
|
|
pvr2_trace(
|
|
PVR2_TRACE_ERROR_LEGS,
|
|
"Too many retries...");
|
|
ret = -EBUSY;
|
|
}
|
|
if (ret) {
|
|
del_timer_sync(&hdw->encoder_run_timer);
|
|
hdw->state_encoder_ok = 0;
|
|
pvr2_trace(PVR2_TRACE_STBITS,
|
|
"State bit %s <-- %s",
|
|
"state_encoder_ok",
|
|
(hdw->state_encoder_ok ? "true" : "false"));
|
|
if (hdw->state_encoder_runok) {
|
|
hdw->state_encoder_runok = 0;
|
|
pvr2_trace(PVR2_TRACE_STBITS,
|
|
"State bit %s <-- %s",
|
|
"state_encoder_runok",
|
|
(hdw->state_encoder_runok ?
|
|
"true" : "false"));
|
|
}
|
|
pvr2_trace(
|
|
PVR2_TRACE_ERROR_LEGS,
|
|
"Giving up on command."
|
|
" This is normally recovered by the driver.");
|
|
break;
|
|
}
|
|
wrData[0] = 0x7;
|
|
for (idx = 0; idx < arg_cnt_recv; idx++) {
|
|
argp[idx] = rdData[idx+4];
|
|
}
|
|
|
|
wrData[0] = 0x0;
|
|
ret = pvr2_encoder_write_words(hdw,MBOX_BASE,wrData,1);
|
|
if (ret) break;
|
|
|
|
} while(0); LOCK_GIVE(hdw->ctl_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int pvr2_encoder_vcmd(struct pvr2_hdw *hdw, int cmd,
|
|
int args, ...)
|
|
{
|
|
va_list vl;
|
|
unsigned int idx;
|
|
u32 data[12];
|
|
|
|
if (args > ARRAY_SIZE(data)) {
|
|
pvr2_trace(
|
|
PVR2_TRACE_ERROR_LEGS,
|
|
"Failed to write cx23416 command"
|
|
" - too many arguments"
|
|
" (was given %u limit %lu)",
|
|
args, (long unsigned) ARRAY_SIZE(data));
|
|
return -EINVAL;
|
|
}
|
|
|
|
va_start(vl, args);
|
|
for (idx = 0; idx < args; idx++) {
|
|
data[idx] = va_arg(vl, u32);
|
|
}
|
|
va_end(vl);
|
|
|
|
return pvr2_encoder_cmd(hdw,cmd,args,0,data);
|
|
}
|
|
|
|
|
|
/* This implements some extra setup for the encoder that seems to be
|
|
specific to the PVR USB2 hardware. */
|
|
static int pvr2_encoder_prep_config(struct pvr2_hdw *hdw)
|
|
{
|
|
int ret = 0;
|
|
int encMisc3Arg = 0;
|
|
|
|
#if 0
|
|
/* This inexplicable bit happens in the Hauppage windows
|
|
driver (for both 24xxx and 29xxx devices). However I
|
|
currently see no difference in behavior with or without
|
|
this stuff. Leave this here as a note of its existence,
|
|
but don't use it. */
|
|
LOCK_TAKE(hdw->ctl_lock); do {
|
|
u32 dat[1];
|
|
dat[0] = 0x80000640;
|
|
pvr2_encoder_write_words(hdw,0x01fe,dat,1);
|
|
pvr2_encoder_write_words(hdw,0x023e,dat,1);
|
|
} while(0); LOCK_GIVE(hdw->ctl_lock);
|
|
#endif
|
|
|
|
/* Mike Isely <isely@pobox.com> 26-Jan-2006 The windows driver
|
|
sends the following list of ENC_MISC commands (for both
|
|
24xxx and 29xxx devices). Meanings are not entirely clear,
|
|
however without the ENC_MISC(3,1) command then we risk
|
|
random perpetual video corruption whenever the video input
|
|
breaks up for a moment (like when switching channels). */
|
|
|
|
|
|
#if 0
|
|
/* This ENC_MISC(5,0) command seems to hurt 29xxx sync
|
|
performance on channel changes, but is not a problem on
|
|
24xxx devices. */
|
|
ret |= pvr2_encoder_vcmd(hdw, CX2341X_ENC_MISC,4, 5,0,0,0);
|
|
#endif
|
|
|
|
/* This ENC_MISC(3,encMisc3Arg) command is critical - without
|
|
it there will eventually be video corruption. Also, the
|
|
saa7115 case is strange - the Windows driver is passing 1
|
|
regardless of device type but if we have 1 for saa7115
|
|
devices the video turns sluggish. */
|
|
if (hdw->hdw_desc->flag_has_cx25840) {
|
|
encMisc3Arg = 1;
|
|
} else {
|
|
encMisc3Arg = 0;
|
|
}
|
|
ret |= pvr2_encoder_vcmd(hdw, CX2341X_ENC_MISC,4, 3,
|
|
encMisc3Arg,0,0);
|
|
|
|
ret |= pvr2_encoder_vcmd(hdw, CX2341X_ENC_MISC,4, 8,0,0,0);
|
|
|
|
#if 0
|
|
/* This ENC_MISC(4,1) command is poisonous, so it is commented
|
|
out. But I'm leaving it here anyway to document its
|
|
existence in the Windows driver. The effect of this
|
|
command is that apps displaying the stream become sluggish
|
|
with stuttering video. */
|
|
ret |= pvr2_encoder_vcmd(hdw, CX2341X_ENC_MISC,4, 4,1,0,0);
|
|
#endif
|
|
|
|
ret |= pvr2_encoder_vcmd(hdw, CX2341X_ENC_MISC,4, 0,3,0,0);
|
|
ret |= pvr2_encoder_vcmd(hdw, CX2341X_ENC_MISC,4,15,0,0,0);
|
|
|
|
/* prevent the PTSs from slowly drifting away in the generated
|
|
MPEG stream */
|
|
ret |= pvr2_encoder_vcmd(hdw, CX2341X_ENC_MISC, 2, 4, 1);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int pvr2_encoder_adjust(struct pvr2_hdw *hdw)
|
|
{
|
|
int ret;
|
|
ret = cx2341x_update(hdw,pvr2_encoder_cmd,
|
|
(hdw->enc_cur_valid ? &hdw->enc_cur_state : NULL),
|
|
&hdw->enc_ctl_state);
|
|
if (ret) {
|
|
pvr2_trace(PVR2_TRACE_ERROR_LEGS,
|
|
"Error from cx2341x module code=%d",ret);
|
|
} else {
|
|
memcpy(&hdw->enc_cur_state,&hdw->enc_ctl_state,
|
|
sizeof(struct cx2341x_mpeg_params));
|
|
hdw->enc_cur_valid = !0;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
int pvr2_encoder_configure(struct pvr2_hdw *hdw)
|
|
{
|
|
int ret;
|
|
int val;
|
|
pvr2_trace(PVR2_TRACE_ENCODER,"pvr2_encoder_configure"
|
|
" (cx2341x module)");
|
|
hdw->enc_ctl_state.port = CX2341X_PORT_STREAMING;
|
|
hdw->enc_ctl_state.width = hdw->res_hor_val;
|
|
hdw->enc_ctl_state.height = hdw->res_ver_val;
|
|
hdw->enc_ctl_state.is_50hz = ((hdw->std_mask_cur & V4L2_STD_525_60) ?
|
|
0 : 1);
|
|
|
|
ret = 0;
|
|
|
|
ret |= pvr2_encoder_prep_config(hdw);
|
|
|
|
/* saa7115: 0xf0 */
|
|
val = 0xf0;
|
|
if (hdw->hdw_desc->flag_has_cx25840) {
|
|
/* ivtv cx25840: 0x140 */
|
|
val = 0x140;
|
|
}
|
|
|
|
if (!ret) ret = pvr2_encoder_vcmd(
|
|
hdw,CX2341X_ENC_SET_NUM_VSYNC_LINES, 2,
|
|
val, val);
|
|
|
|
/* setup firmware to notify us about some events (don't know why...) */
|
|
if (!ret) ret = pvr2_encoder_vcmd(
|
|
hdw,CX2341X_ENC_SET_EVENT_NOTIFICATION, 4,
|
|
0, 0, 0x10000000, 0xffffffff);
|
|
|
|
if (!ret) ret = pvr2_encoder_vcmd(
|
|
hdw,CX2341X_ENC_SET_VBI_LINE, 5,
|
|
0xffffffff,0,0,0,0);
|
|
|
|
if (ret) {
|
|
pvr2_trace(PVR2_TRACE_ERROR_LEGS,
|
|
"Failed to configure cx23416");
|
|
return ret;
|
|
}
|
|
|
|
ret = pvr2_encoder_adjust(hdw);
|
|
if (ret) return ret;
|
|
|
|
ret = pvr2_encoder_vcmd(
|
|
hdw, CX2341X_ENC_INITIALIZE_INPUT, 0);
|
|
|
|
if (ret) {
|
|
pvr2_trace(PVR2_TRACE_ERROR_LEGS,
|
|
"Failed to initialize cx23416 video input");
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int pvr2_encoder_start(struct pvr2_hdw *hdw)
|
|
{
|
|
int status;
|
|
|
|
/* unmask some interrupts */
|
|
pvr2_write_register(hdw, 0x0048, 0xbfffffff);
|
|
|
|
pvr2_encoder_vcmd(hdw,CX2341X_ENC_MUTE_VIDEO,1,
|
|
hdw->input_val == PVR2_CVAL_INPUT_RADIO ? 1 : 0);
|
|
|
|
switch (hdw->active_stream_type) {
|
|
case pvr2_config_vbi:
|
|
status = pvr2_encoder_vcmd(hdw,CX2341X_ENC_START_CAPTURE,2,
|
|
0x01,0x14);
|
|
break;
|
|
case pvr2_config_mpeg:
|
|
status = pvr2_encoder_vcmd(hdw,CX2341X_ENC_START_CAPTURE,2,
|
|
0,0x13);
|
|
break;
|
|
default: /* Unhandled cases for now */
|
|
status = pvr2_encoder_vcmd(hdw,CX2341X_ENC_START_CAPTURE,2,
|
|
0,0x13);
|
|
break;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
int pvr2_encoder_stop(struct pvr2_hdw *hdw)
|
|
{
|
|
int status;
|
|
|
|
/* mask all interrupts */
|
|
pvr2_write_register(hdw, 0x0048, 0xffffffff);
|
|
|
|
switch (hdw->active_stream_type) {
|
|
case pvr2_config_vbi:
|
|
status = pvr2_encoder_vcmd(hdw,CX2341X_ENC_STOP_CAPTURE,3,
|
|
0x01,0x01,0x14);
|
|
break;
|
|
case pvr2_config_mpeg:
|
|
status = pvr2_encoder_vcmd(hdw,CX2341X_ENC_STOP_CAPTURE,3,
|
|
0x01,0,0x13);
|
|
break;
|
|
default: /* Unhandled cases for now */
|
|
status = pvr2_encoder_vcmd(hdw,CX2341X_ENC_STOP_CAPTURE,3,
|
|
0x01,0,0x13);
|
|
break;
|
|
}
|
|
|
|
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: ***
|
|
*/
|