a0fd1cb171
Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
419 lines
11 KiB
C
419 lines
11 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 "pvrusb2-util.h"
|
|
#include "pvrusb2-encoder.h"
|
|
#include "pvrusb2-hdw-internal.h"
|
|
#include "pvrusb2-debug.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
|
|
|
|
|
|
static int pvr2_encoder_write_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),
|
|
NULL,0);
|
|
if (ret) return ret;
|
|
data += chunkCnt;
|
|
dlen -= chunkCnt;
|
|
offs += chunkCnt;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int pvr2_encoder_read_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;
|
|
}
|
|
|
|
|
|
/* 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,
|
|
int cmd,
|
|
int arg_cnt_send,
|
|
int arg_cnt_recv,
|
|
u32 *argp)
|
|
{
|
|
unsigned int poll_count;
|
|
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 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").
|
|
|
|
*/
|
|
|
|
if (arg_cnt_send > (sizeof(wrData)/sizeof(wrData[0]))-4) {
|
|
pvr2_trace(
|
|
PVR2_TRACE_ERROR_LEGS,
|
|
"Failed to write cx23416 command"
|
|
" - too many input arguments"
|
|
" (was given %u limit %u)",
|
|
arg_cnt_send,
|
|
(unsigned int)(sizeof(wrData)/sizeof(wrData[0])) - 4);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (arg_cnt_recv > (sizeof(rdData)/sizeof(rdData[0]))-4) {
|
|
pvr2_trace(
|
|
PVR2_TRACE_ERROR_LEGS,
|
|
"Failed to write cx23416 command"
|
|
" - too many return arguments"
|
|
" (was given %u limit %u)",
|
|
arg_cnt_recv,
|
|
(unsigned int)(sizeof(rdData)/sizeof(rdData[0])) - 4);
|
|
return -EINVAL;
|
|
}
|
|
|
|
|
|
LOCK_TAKE(hdw->ctl_lock); do {
|
|
|
|
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 < (sizeof(wrData)/sizeof(wrData[0]))-4; idx++) {
|
|
wrData[idx+4] = 0;
|
|
}
|
|
|
|
ret = pvr2_encoder_write_words(hdw,wrData,idx);
|
|
if (ret) break;
|
|
wrData[0] = IVTV_MBOX_DRIVER_DONE|IVTV_MBOX_DRIVER_BUSY;
|
|
ret = pvr2_encoder_write_words(hdw,wrData,1);
|
|
if (ret) break;
|
|
poll_count = 0;
|
|
while (1) {
|
|
if (poll_count < 10000000) poll_count++;
|
|
ret = pvr2_encoder_read_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 < arg_cnt_send; 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_encoder_read_words(
|
|
hdw,0,rdData,
|
|
sizeof(rdData)/sizeof(rdData[0]));
|
|
if (ret) break;
|
|
for (idx = 0; idx < arg_cnt_recv; idx++) {
|
|
argp[idx] = rdData[idx+4];
|
|
}
|
|
|
|
wrData[0] = 0x0;
|
|
ret = pvr2_encoder_write_words(hdw,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 > sizeof(data)/sizeof(data[0])) {
|
|
pvr2_trace(
|
|
PVR2_TRACE_ERROR_LEGS,
|
|
"Failed to write cx23416 command"
|
|
" - too many arguments"
|
|
" (was given %u limit %u)",
|
|
args,(unsigned int)(sizeof(data)/sizeof(data[0])));
|
|
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);
|
|
}
|
|
|
|
int pvr2_encoder_configure(struct pvr2_hdw *hdw)
|
|
{
|
|
int ret;
|
|
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_NTSC|V4L2_STD_PAL_M)) ?
|
|
0 : 1);
|
|
|
|
ret = 0;
|
|
|
|
if (!ret) ret = pvr2_encoder_vcmd(
|
|
hdw,CX2341X_ENC_SET_NUM_VSYNC_LINES, 2,
|
|
0xf0, 0xf0);
|
|
|
|
/* 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 cx32416");
|
|
return 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);
|
|
return ret;
|
|
}
|
|
|
|
ret = 0;
|
|
|
|
if (!ret) ret = pvr2_encoder_vcmd(
|
|
hdw, CX2341X_ENC_INITIALIZE_INPUT, 0);
|
|
|
|
if (ret) {
|
|
pvr2_trace(PVR2_TRACE_ERROR_LEGS,
|
|
"Failed to initialize cx32416 video input");
|
|
return ret;
|
|
}
|
|
|
|
hdw->subsys_enabled_mask |= (1<<PVR2_SUBSYS_B_ENC_CFG);
|
|
memcpy(&hdw->enc_cur_state,&hdw->enc_ctl_state,
|
|
sizeof(struct cx2341x_mpeg_params));
|
|
hdw->enc_cur_valid = !0;
|
|
return 0;
|
|
}
|
|
|
|
|
|
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_encoder_vcmd(hdw,CX2341X_ENC_START_CAPTURE,2,
|
|
0x01,0x14);
|
|
} else if (hdw->config == pvr2_config_mpeg) {
|
|
status = pvr2_encoder_vcmd(hdw,CX2341X_ENC_START_CAPTURE,2,
|
|
0,0x13);
|
|
} else {
|
|
status = pvr2_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_encoder_vcmd(hdw,CX2341X_ENC_STOP_CAPTURE,3,
|
|
0x01,0x01,0x14);
|
|
} else if (hdw->config == pvr2_config_mpeg) {
|
|
status = pvr2_encoder_vcmd(hdw,CX2341X_ENC_STOP_CAPTURE,3,
|
|
0x01,0,0x13);
|
|
} else {
|
|
status = pvr2_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: ***
|
|
*/
|