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Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-encoder.c')
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-encoder.c418
1 files changed, 0 insertions, 418 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-encoder.c b/drivers/media/video/pvrusb2/pvrusb2-encoder.c
deleted file mode 100644
index 18a7073501c..00000000000
--- a/drivers/media/video/pvrusb2/pvrusb2-encoder.c
+++ /dev/null
@@ -1,418 +0,0 @@
-/*
- *
- * $Id$
- *
- * 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: ***
- */
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