diff options
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-encoder.c')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-encoder.c | 552 |
1 files changed, 0 insertions, 552 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-encoder.c b/drivers/media/video/pvrusb2/pvrusb2-encoder.c deleted file mode 100644 index e046fdaec5a..00000000000 --- a/drivers/media/video/pvrusb2/pvrusb2-encoder.c +++ /dev/null @@ -1,552 +0,0 @@ -/* - * - * - * 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 via a firmware" - " reload and re-initialization; concern" - " is only warranted if this happens repeatedly" - " and rapidly."); - 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 Hauppauge 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: *** - */ |