| /* |
| * av7110_av.c: audio and video MPEG decoder stuff |
| * |
| * Copyright (C) 1999-2002 Ralph Metzler |
| * & Marcus Metzler for convergence integrated media GmbH |
| * |
| * originally based on code by: |
| * Copyright (C) 1998,1999 Christian Theiss <mistert@rz.fh-augsburg.de> |
| * |
| * 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, or (at your option) any later version. |
| * |
| * |
| * 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. |
| * Or, point your browser to http://www.gnu.org/copyleft/gpl.html |
| * |
| * |
| * the project's page is at http://www.linuxtv.org/dvb/ |
| */ |
| |
| #include <linux/types.h> |
| #include <linux/kernel.h> |
| #include <linux/string.h> |
| #include <linux/sched.h> |
| #include <linux/delay.h> |
| #include <linux/byteorder/swabb.h> |
| #include <linux/smp_lock.h> |
| #include <linux/fs.h> |
| |
| #include "av7110.h" |
| #include "av7110_hw.h" |
| #include "av7110_av.h" |
| #include "av7110_ipack.h" |
| |
| /* MPEG-2 (ISO 13818 / H.222.0) stream types */ |
| #define PROG_STREAM_MAP 0xBC |
| #define PRIVATE_STREAM1 0xBD |
| #define PADDING_STREAM 0xBE |
| #define PRIVATE_STREAM2 0xBF |
| #define AUDIO_STREAM_S 0xC0 |
| #define AUDIO_STREAM_E 0xDF |
| #define VIDEO_STREAM_S 0xE0 |
| #define VIDEO_STREAM_E 0xEF |
| #define ECM_STREAM 0xF0 |
| #define EMM_STREAM 0xF1 |
| #define DSM_CC_STREAM 0xF2 |
| #define ISO13522_STREAM 0xF3 |
| #define PROG_STREAM_DIR 0xFF |
| |
| #define PTS_DTS_FLAGS 0xC0 |
| |
| //pts_dts flags |
| #define PTS_ONLY 0x80 |
| #define PTS_DTS 0xC0 |
| #define TS_SIZE 188 |
| #define TRANS_ERROR 0x80 |
| #define PAY_START 0x40 |
| #define TRANS_PRIO 0x20 |
| #define PID_MASK_HI 0x1F |
| //flags |
| #define TRANS_SCRMBL1 0x80 |
| #define TRANS_SCRMBL2 0x40 |
| #define ADAPT_FIELD 0x20 |
| #define PAYLOAD 0x10 |
| #define COUNT_MASK 0x0F |
| |
| // adaptation flags |
| #define DISCON_IND 0x80 |
| #define RAND_ACC_IND 0x40 |
| #define ES_PRI_IND 0x20 |
| #define PCR_FLAG 0x10 |
| #define OPCR_FLAG 0x08 |
| #define SPLICE_FLAG 0x04 |
| #define TRANS_PRIV 0x02 |
| #define ADAP_EXT_FLAG 0x01 |
| |
| // adaptation extension flags |
| #define LTW_FLAG 0x80 |
| #define PIECE_RATE 0x40 |
| #define SEAM_SPLICE 0x20 |
| |
| |
| static void p_to_t(u8 const *buf, long int length, u16 pid, |
| u8 *counter, struct dvb_demux_feed *feed); |
| |
| |
| int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len) |
| { |
| struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) p2t->priv; |
| |
| if (!(dvbdmxfeed->ts_type & TS_PACKET)) |
| return 0; |
| if (buf[3] == 0xe0) // video PES do not have a length in TS |
| buf[4] = buf[5] = 0; |
| if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY) |
| return dvbdmxfeed->cb.ts(buf, len, NULL, 0, |
| &dvbdmxfeed->feed.ts, DMX_OK); |
| else |
| return dvb_filter_pes2ts(p2t, buf, len, 1); |
| } |
| |
| static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data) |
| { |
| struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv; |
| |
| dvbdmxfeed->cb.ts(data, 188, NULL, 0, |
| &dvbdmxfeed->feed.ts, DMX_OK); |
| return 0; |
| } |
| |
| int av7110_av_start_record(struct av7110 *av7110, int av, |
| struct dvb_demux_feed *dvbdmxfeed) |
| { |
| int ret = 0; |
| struct dvb_demux *dvbdmx = dvbdmxfeed->demux; |
| |
| dprintk(2, "av7110:%p, , dvb_demux_feed:%p\n", av7110, dvbdmxfeed); |
| |
| if (av7110->playing || (av7110->rec_mode & av)) |
| return -EBUSY; |
| av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0); |
| dvbdmx->recording = 1; |
| av7110->rec_mode |= av; |
| |
| switch (av7110->rec_mode) { |
| case RP_AUDIO: |
| dvb_filter_pes2ts_init(&av7110->p2t[0], |
| dvbdmx->pesfilter[0]->pid, |
| dvb_filter_pes2ts_cb, |
| (void *) dvbdmx->pesfilter[0]); |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0); |
| break; |
| |
| case RP_VIDEO: |
| dvb_filter_pes2ts_init(&av7110->p2t[1], |
| dvbdmx->pesfilter[1]->pid, |
| dvb_filter_pes2ts_cb, |
| (void *) dvbdmx->pesfilter[1]); |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0); |
| break; |
| |
| case RP_AV: |
| dvb_filter_pes2ts_init(&av7110->p2t[0], |
| dvbdmx->pesfilter[0]->pid, |
| dvb_filter_pes2ts_cb, |
| (void *) dvbdmx->pesfilter[0]); |
| dvb_filter_pes2ts_init(&av7110->p2t[1], |
| dvbdmx->pesfilter[1]->pid, |
| dvb_filter_pes2ts_cb, |
| (void *) dvbdmx->pesfilter[1]); |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AV_PES, 0); |
| break; |
| } |
| return ret; |
| } |
| |
| int av7110_av_start_play(struct av7110 *av7110, int av) |
| { |
| int ret = 0; |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| if (av7110->rec_mode) |
| return -EBUSY; |
| if (av7110->playing & av) |
| return -EBUSY; |
| |
| av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0); |
| |
| if (av7110->playing == RP_NONE) { |
| av7110_ipack_reset(&av7110->ipack[0]); |
| av7110_ipack_reset(&av7110->ipack[1]); |
| } |
| |
| av7110->playing |= av; |
| switch (av7110->playing) { |
| case RP_AUDIO: |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0); |
| break; |
| case RP_VIDEO: |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0); |
| av7110->sinfo = 0; |
| break; |
| case RP_AV: |
| av7110->sinfo = 0; |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AV_PES, 0); |
| break; |
| } |
| if (!ret) |
| ret = av7110->playing; |
| return ret; |
| } |
| |
| int av7110_av_stop(struct av7110 *av7110, int av) |
| { |
| int ret = 0; |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| if (!(av7110->playing & av) && !(av7110->rec_mode & av)) |
| return 0; |
| av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0); |
| if (av7110->playing) { |
| av7110->playing &= ~av; |
| switch (av7110->playing) { |
| case RP_AUDIO: |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0); |
| break; |
| case RP_VIDEO: |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0); |
| break; |
| case RP_NONE: |
| ret = av7110_set_vidmode(av7110, av7110->vidmode); |
| break; |
| } |
| } else { |
| av7110->rec_mode &= ~av; |
| switch (av7110->rec_mode) { |
| case RP_AUDIO: |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0); |
| break; |
| case RP_VIDEO: |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0); |
| break; |
| case RP_NONE: |
| break; |
| } |
| } |
| return ret; |
| } |
| |
| |
| int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen) |
| { |
| int len; |
| u32 sync; |
| u16 blen; |
| |
| if (!dlen) { |
| wake_up(&buf->queue); |
| return -1; |
| } |
| while (1) { |
| if ((len = dvb_ringbuffer_avail(buf)) < 6) |
| return -1; |
| sync = DVB_RINGBUFFER_PEEK(buf, 0) << 24; |
| sync |= DVB_RINGBUFFER_PEEK(buf, 1) << 16; |
| sync |= DVB_RINGBUFFER_PEEK(buf, 2) << 8; |
| sync |= DVB_RINGBUFFER_PEEK(buf, 3); |
| |
| if (((sync &~ 0x0f) == 0x000001e0) || |
| ((sync &~ 0x1f) == 0x000001c0) || |
| (sync == 0x000001bd)) |
| break; |
| printk("resync\n"); |
| DVB_RINGBUFFER_SKIP(buf, 1); |
| } |
| blen = DVB_RINGBUFFER_PEEK(buf, 4) << 8; |
| blen |= DVB_RINGBUFFER_PEEK(buf, 5); |
| blen += 6; |
| if (len < blen || blen > dlen) { |
| //printk("buffer empty - avail %d blen %u dlen %d\n", len, blen, dlen); |
| wake_up(&buf->queue); |
| return -1; |
| } |
| |
| dvb_ringbuffer_read(buf, dest, (size_t) blen, 0); |
| |
| dprintk(2, "pread=0x%08lx, pwrite=0x%08lx\n", |
| (unsigned long) buf->pread, (unsigned long) buf->pwrite); |
| wake_up(&buf->queue); |
| return blen; |
| } |
| |
| |
| int av7110_set_volume(struct av7110 *av7110, int volleft, int volright) |
| { |
| int err, vol, val, balance = 0; |
| |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| av7110->mixer.volume_left = volleft; |
| av7110->mixer.volume_right = volright; |
| |
| switch (av7110->adac_type) { |
| case DVB_ADAC_TI: |
| volleft = (volleft * 256) / 1036; |
| volright = (volright * 256) / 1036; |
| if (volleft > 0x3f) |
| volleft = 0x3f; |
| if (volright > 0x3f) |
| volright = 0x3f; |
| if ((err = SendDAC(av7110, 3, 0x80 + volleft))) |
| return err; |
| return SendDAC(av7110, 4, volright); |
| |
| case DVB_ADAC_CRYSTAL: |
| volleft = 127 - volleft / 2; |
| volright = 127 - volright / 2; |
| i2c_writereg(av7110, 0x20, 0x03, volleft); |
| i2c_writereg(av7110, 0x20, 0x04, volright); |
| return 0; |
| |
| case DVB_ADAC_MSP34x0: |
| vol = (volleft > volright) ? volleft : volright; |
| val = (vol * 0x73 / 255) << 8; |
| if (vol > 0) |
| balance = ((volright - volleft) * 127) / vol; |
| msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8); |
| msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */ |
| msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */ |
| return 0; |
| } |
| return 0; |
| } |
| |
| int av7110_set_vidmode(struct av7110 *av7110, int mode) |
| { |
| int ret; |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode); |
| |
| if (!ret && !av7110->playing) { |
| ret = ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO], |
| av7110->pids[DMX_PES_AUDIO], |
| av7110->pids[DMX_PES_TELETEXT], |
| 0, av7110->pids[DMX_PES_PCR]); |
| if (!ret) |
| ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0); |
| } |
| return ret; |
| } |
| |
| |
| static int sw2mode[16] = { |
| VIDEO_MODE_PAL, VIDEO_MODE_NTSC, VIDEO_MODE_NTSC, VIDEO_MODE_PAL, |
| VIDEO_MODE_NTSC, VIDEO_MODE_NTSC, VIDEO_MODE_PAL, VIDEO_MODE_NTSC, |
| VIDEO_MODE_PAL, VIDEO_MODE_PAL, VIDEO_MODE_PAL, VIDEO_MODE_PAL, |
| VIDEO_MODE_PAL, VIDEO_MODE_PAL, VIDEO_MODE_PAL, VIDEO_MODE_PAL, |
| }; |
| |
| static int get_video_format(struct av7110 *av7110, u8 *buf, int count) |
| { |
| int i; |
| int hsize, vsize; |
| int sw; |
| u8 *p; |
| int ret = 0; |
| |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| if (av7110->sinfo) |
| return 0; |
| for (i = 7; i < count - 10; i++) { |
| p = buf + i; |
| if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3) |
| continue; |
| p += 4; |
| hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4); |
| vsize = ((p[1] &0x0F) << 8) | (p[2]); |
| sw = (p[3] & 0x0F); |
| ret = av7110_set_vidmode(av7110, sw2mode[sw]); |
| if (!ret) { |
| dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw); |
| av7110->sinfo = 1; |
| } |
| break; |
| } |
| return ret; |
| } |
| |
| |
| /**************************************************************************** |
| * I/O buffer management and control |
| ****************************************************************************/ |
| |
| static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf, |
| const char *buf, unsigned long count) |
| { |
| unsigned long todo = count; |
| int free; |
| |
| while (todo > 0) { |
| if (dvb_ringbuffer_free(rbuf) < 2048) { |
| if (wait_event_interruptible(rbuf->queue, |
| (dvb_ringbuffer_free(rbuf) >= 2048))) |
| return count - todo; |
| } |
| free = dvb_ringbuffer_free(rbuf); |
| if (free > todo) |
| free = todo; |
| dvb_ringbuffer_write(rbuf, buf, free); |
| todo -= free; |
| buf += free; |
| } |
| |
| return count - todo; |
| } |
| |
| static void play_video_cb(u8 *buf, int count, void *priv) |
| { |
| struct av7110 *av7110 = (struct av7110 *) priv; |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| if ((buf[3] & 0xe0) == 0xe0) { |
| get_video_format(av7110, buf, count); |
| aux_ring_buffer_write(&av7110->avout, buf, count); |
| } else |
| aux_ring_buffer_write(&av7110->aout, buf, count); |
| } |
| |
| static void play_audio_cb(u8 *buf, int count, void *priv) |
| { |
| struct av7110 *av7110 = (struct av7110 *) priv; |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| aux_ring_buffer_write(&av7110->aout, buf, count); |
| } |
| |
| #define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \ |
| dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024) |
| |
| static ssize_t dvb_play(struct av7110 *av7110, const u8 __user *buf, |
| unsigned long count, int nonblock, int type) |
| { |
| unsigned long todo = count, n; |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| if (!av7110->kbuf[type]) |
| return -ENOBUFS; |
| |
| if (nonblock && !FREE_COND) |
| return -EWOULDBLOCK; |
| |
| while (todo > 0) { |
| if (!FREE_COND) { |
| if (nonblock) |
| return count - todo; |
| if (wait_event_interruptible(av7110->avout.queue, |
| FREE_COND)) |
| return count - todo; |
| } |
| n = todo; |
| if (n > IPACKS * 2) |
| n = IPACKS * 2; |
| if (copy_from_user(av7110->kbuf[type], buf, n)) |
| return -EFAULT; |
| av7110_ipack_instant_repack(av7110->kbuf[type], n, |
| &av7110->ipack[type]); |
| todo -= n; |
| buf += n; |
| } |
| return count - todo; |
| } |
| |
| static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf, |
| unsigned long count, int nonblock, int type) |
| { |
| unsigned long todo = count, n; |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| if (!av7110->kbuf[type]) |
| return -ENOBUFS; |
| |
| if (nonblock && !FREE_COND) |
| return -EWOULDBLOCK; |
| |
| while (todo > 0) { |
| if (!FREE_COND) { |
| if (nonblock) |
| return count - todo; |
| if (wait_event_interruptible(av7110->avout.queue, |
| FREE_COND)) |
| return count - todo; |
| } |
| n = todo; |
| if (n > IPACKS * 2) |
| n = IPACKS * 2; |
| av7110_ipack_instant_repack(buf, n, &av7110->ipack[type]); |
| todo -= n; |
| buf += n; |
| } |
| return count - todo; |
| } |
| |
| static ssize_t dvb_aplay(struct av7110 *av7110, const u8 __user *buf, |
| unsigned long count, int nonblock, int type) |
| { |
| unsigned long todo = count, n; |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| if (!av7110->kbuf[type]) |
| return -ENOBUFS; |
| if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) |
| return -EWOULDBLOCK; |
| |
| while (todo > 0) { |
| if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) { |
| if (nonblock) |
| return count - todo; |
| if (wait_event_interruptible(av7110->aout.queue, |
| (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024))) |
| return count-todo; |
| } |
| n = todo; |
| if (n > IPACKS * 2) |
| n = IPACKS * 2; |
| if (copy_from_user(av7110->kbuf[type], buf, n)) |
| return -EFAULT; |
| av7110_ipack_instant_repack(av7110->kbuf[type], n, |
| &av7110->ipack[type]); |
| todo -= n; |
| buf += n; |
| } |
| return count - todo; |
| } |
| |
| void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed) |
| { |
| memset(p->pes, 0, TS_SIZE); |
| p->counter = 0; |
| p->pos = 0; |
| p->frags = 0; |
| if (feed) |
| p->feed = feed; |
| } |
| |
| static void clear_p2t(struct av7110_p2t *p) |
| { |
| memset(p->pes, 0, TS_SIZE); |
| // p->counter = 0; |
| p->pos = 0; |
| p->frags = 0; |
| } |
| |
| |
| static int find_pes_header(u8 const *buf, long int length, int *frags) |
| { |
| int c = 0; |
| int found = 0; |
| |
| *frags = 0; |
| |
| while (c < length - 3 && !found) { |
| if (buf[c] == 0x00 && buf[c + 1] == 0x00 && |
| buf[c + 2] == 0x01) { |
| switch ( buf[c + 3] ) { |
| case PROG_STREAM_MAP: |
| case PRIVATE_STREAM2: |
| case PROG_STREAM_DIR: |
| case ECM_STREAM : |
| case EMM_STREAM : |
| case PADDING_STREAM : |
| case DSM_CC_STREAM : |
| case ISO13522_STREAM: |
| case PRIVATE_STREAM1: |
| case AUDIO_STREAM_S ... AUDIO_STREAM_E: |
| case VIDEO_STREAM_S ... VIDEO_STREAM_E: |
| found = 1; |
| break; |
| |
| default: |
| c++; |
| break; |
| } |
| } else |
| c++; |
| } |
| if (c == length - 3 && !found) { |
| if (buf[length - 1] == 0x00) |
| *frags = 1; |
| if (buf[length - 2] == 0x00 && |
| buf[length - 1] == 0x00) |
| *frags = 2; |
| if (buf[length - 3] == 0x00 && |
| buf[length - 2] == 0x00 && |
| buf[length - 1] == 0x01) |
| *frags = 3; |
| return -1; |
| } |
| |
| return c; |
| } |
| |
| void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p) |
| { |
| int c, c2, l, add; |
| int check, rest; |
| |
| c = 0; |
| c2 = 0; |
| if (p->frags){ |
| check = 0; |
| switch(p->frags) { |
| case 1: |
| if (buf[c] == 0x00 && buf[c + 1] == 0x01) { |
| check = 1; |
| c += 2; |
| } |
| break; |
| case 2: |
| if (buf[c] == 0x01) { |
| check = 1; |
| c++; |
| } |
| break; |
| case 3: |
| check = 1; |
| } |
| if (check) { |
| switch (buf[c]) { |
| case PROG_STREAM_MAP: |
| case PRIVATE_STREAM2: |
| case PROG_STREAM_DIR: |
| case ECM_STREAM : |
| case EMM_STREAM : |
| case PADDING_STREAM : |
| case DSM_CC_STREAM : |
| case ISO13522_STREAM: |
| case PRIVATE_STREAM1: |
| case AUDIO_STREAM_S ... AUDIO_STREAM_E: |
| case VIDEO_STREAM_S ... VIDEO_STREAM_E: |
| p->pes[0] = 0x00; |
| p->pes[1] = 0x00; |
| p->pes[2] = 0x01; |
| p->pes[3] = buf[c]; |
| p->pos = 4; |
| memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos); |
| c += (TS_SIZE - 4) - p->pos; |
| p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed); |
| clear_p2t(p); |
| break; |
| |
| default: |
| c = 0; |
| break; |
| } |
| } |
| p->frags = 0; |
| } |
| |
| if (p->pos) { |
| c2 = find_pes_header(buf + c, length - c, &p->frags); |
| if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos) |
| l = c2+c; |
| else |
| l = (TS_SIZE - 4) - p->pos; |
| memcpy(p->pes + p->pos, buf, l); |
| c += l; |
| p->pos += l; |
| p_to_t(p->pes, p->pos, pid, &p->counter, p->feed); |
| clear_p2t(p); |
| } |
| |
| add = 0; |
| while (c < length) { |
| c2 = find_pes_header(buf + c + add, length - c - add, &p->frags); |
| if (c2 >= 0) { |
| c2 += c + add; |
| if (c2 > c){ |
| p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed); |
| c = c2; |
| clear_p2t(p); |
| add = 0; |
| } else |
| add = 1; |
| } else { |
| l = length - c; |
| rest = l % (TS_SIZE - 4); |
| l -= rest; |
| p_to_t(buf + c, l, pid, &p->counter, p->feed); |
| memcpy(p->pes, buf + c + l, rest); |
| p->pos = rest; |
| c = length; |
| } |
| } |
| } |
| |
| |
| static int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length) |
| { |
| int i; |
| int c = 0; |
| int fill; |
| u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 }; |
| |
| fill = (TS_SIZE - 4) - length; |
| if (pes_start) |
| tshead[1] = 0x40; |
| if (fill) |
| tshead[3] = 0x30; |
| tshead[1] |= (u8)((pid & 0x1F00) >> 8); |
| tshead[2] |= (u8)(pid & 0x00FF); |
| tshead[3] |= ((*counter)++ & 0x0F); |
| memcpy(buf, tshead, 4); |
| c += 4; |
| |
| if (fill) { |
| buf[4] = fill - 1; |
| c++; |
| if (fill > 1) { |
| buf[5] = 0x00; |
| c++; |
| } |
| for (i = 6; i < fill + 4; i++) { |
| buf[i] = 0xFF; |
| c++; |
| } |
| } |
| |
| return c; |
| } |
| |
| |
| static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter, |
| struct dvb_demux_feed *feed) |
| { |
| int l, pes_start; |
| u8 obuf[TS_SIZE]; |
| long c = 0; |
| |
| pes_start = 0; |
| if (length > 3 && |
| buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01) |
| switch (buf[3]) { |
| case PROG_STREAM_MAP: |
| case PRIVATE_STREAM2: |
| case PROG_STREAM_DIR: |
| case ECM_STREAM : |
| case EMM_STREAM : |
| case PADDING_STREAM : |
| case DSM_CC_STREAM : |
| case ISO13522_STREAM: |
| case PRIVATE_STREAM1: |
| case AUDIO_STREAM_S ... AUDIO_STREAM_E: |
| case VIDEO_STREAM_S ... VIDEO_STREAM_E: |
| pes_start = 1; |
| break; |
| |
| default: |
| break; |
| } |
| |
| while (c < length) { |
| memset(obuf, 0, TS_SIZE); |
| if (length - c >= (TS_SIZE - 4)){ |
| l = write_ts_header2(pid, counter, pes_start, |
| obuf, (TS_SIZE - 4)); |
| memcpy(obuf + l, buf + c, TS_SIZE - l); |
| c += TS_SIZE - l; |
| } else { |
| l = write_ts_header2(pid, counter, pes_start, |
| obuf, length - c); |
| memcpy(obuf + l, buf + c, TS_SIZE - l); |
| c = length; |
| } |
| feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts, DMX_OK); |
| pes_start = 0; |
| } |
| } |
| |
| |
| int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len) |
| { |
| struct dvb_demux *demux = feed->demux; |
| struct av7110 *av7110 = (struct av7110 *) demux->priv; |
| struct ipack *ipack = &av7110->ipack[feed->pes_type]; |
| |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| switch (feed->pes_type) { |
| case 0: |
| if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY) |
| return -EINVAL; |
| break; |
| case 1: |
| if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) |
| return -EINVAL; |
| break; |
| default: |
| return -1; |
| } |
| |
| if (!(buf[3] & 0x10)) /* no payload? */ |
| return -1; |
| if (buf[1] & 0x40) |
| av7110_ipack_flush(ipack); |
| |
| if (buf[3] & 0x20) { /* adaptation field? */ |
| len -= buf[4] + 1; |
| buf += buf[4] + 1; |
| if (!len) |
| return 0; |
| } |
| |
| av7110_ipack_instant_repack(buf + 4, len - 4, &av7110->ipack[feed->pes_type]); |
| return 0; |
| } |
| |
| |
| |
| /****************************************************************************** |
| * Video MPEG decoder events |
| ******************************************************************************/ |
| void dvb_video_add_event(struct av7110 *av7110, struct video_event *event) |
| { |
| struct dvb_video_events *events = &av7110->video_events; |
| int wp; |
| |
| spin_lock_bh(&events->lock); |
| |
| wp = (events->eventw + 1) % MAX_VIDEO_EVENT; |
| if (wp == events->eventr) { |
| events->overflow = 1; |
| events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT; |
| } |
| |
| //FIXME: timestamp? |
| memcpy(&events->events[events->eventw], event, sizeof(struct video_event)); |
| events->eventw = wp; |
| |
| spin_unlock_bh(&events->lock); |
| |
| wake_up_interruptible(&events->wait_queue); |
| } |
| |
| |
| static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags) |
| { |
| struct dvb_video_events *events = &av7110->video_events; |
| |
| if (events->overflow) { |
| events->overflow = 0; |
| return -EOVERFLOW; |
| } |
| if (events->eventw == events->eventr) { |
| int ret; |
| |
| if (flags & O_NONBLOCK) |
| return -EWOULDBLOCK; |
| |
| ret = wait_event_interruptible(events->wait_queue, |
| events->eventw != events->eventr); |
| if (ret < 0) |
| return ret; |
| } |
| |
| spin_lock_bh(&events->lock); |
| |
| memcpy(event, &events->events[events->eventr], |
| sizeof(struct video_event)); |
| events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT; |
| |
| spin_unlock_bh(&events->lock); |
| |
| return 0; |
| } |
| |
| |
| /****************************************************************************** |
| * DVB device file operations |
| ******************************************************************************/ |
| |
| static unsigned int dvb_video_poll(struct file *file, poll_table *wait) |
| { |
| struct dvb_device *dvbdev = (struct dvb_device *) file->private_data; |
| struct av7110 *av7110 = (struct av7110 *) dvbdev->priv; |
| unsigned int mask = 0; |
| |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| if ((file->f_flags & O_ACCMODE) != O_RDONLY) |
| poll_wait(file, &av7110->avout.queue, wait); |
| |
| poll_wait(file, &av7110->video_events.wait_queue, wait); |
| |
| if (av7110->video_events.eventw != av7110->video_events.eventr) |
| mask = POLLPRI; |
| |
| if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
| if (av7110->playing) { |
| if (FREE_COND) |
| mask |= (POLLOUT | POLLWRNORM); |
| } else /* if not playing: may play if asked for */ |
| mask |= (POLLOUT | POLLWRNORM); |
| } |
| |
| return mask; |
| } |
| |
| static ssize_t dvb_video_write(struct file *file, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct dvb_device *dvbdev = (struct dvb_device *) file->private_data; |
| struct av7110 *av7110 = (struct av7110 *) dvbdev->priv; |
| |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| if ((file->f_flags & O_ACCMODE) == O_RDONLY) |
| return -EPERM; |
| |
| if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY) |
| return -EPERM; |
| |
| return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1); |
| } |
| |
| static unsigned int dvb_audio_poll(struct file *file, poll_table *wait) |
| { |
| struct dvb_device *dvbdev = (struct dvb_device *) file->private_data; |
| struct av7110 *av7110 = (struct av7110 *) dvbdev->priv; |
| unsigned int mask = 0; |
| |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| poll_wait(file, &av7110->aout.queue, wait); |
| |
| if (av7110->playing) { |
| if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024) |
| mask |= (POLLOUT | POLLWRNORM); |
| } else /* if not playing: may play if asked for */ |
| mask = (POLLOUT | POLLWRNORM); |
| |
| return mask; |
| } |
| |
| static ssize_t dvb_audio_write(struct file *file, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct dvb_device *dvbdev = (struct dvb_device *) file->private_data; |
| struct av7110 *av7110 = (struct av7110 *) dvbdev->priv; |
| |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) { |
| printk(KERN_ERR "not audio source memory\n"); |
| return -EPERM; |
| } |
| return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0); |
| } |
| |
| static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 }; |
| |
| #define MIN_IFRAME 400000 |
| |
| static int play_iframe(struct av7110 *av7110, u8 __user *buf, unsigned int len, int nonblock) |
| { |
| int i, n; |
| |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| if (!(av7110->playing & RP_VIDEO)) { |
| if (av7110_av_start_play(av7110, RP_VIDEO) < 0) |
| return -EBUSY; |
| } |
| |
| /* setting n always > 1, fixes problems when playing stillframes |
| consisting of I- and P-Frames */ |
| n = MIN_IFRAME / len + 1; |
| |
| /* FIXME: nonblock? */ |
| dvb_play_kernel(av7110, iframe_header, sizeof(iframe_header), 0, 1); |
| |
| for (i = 0; i < n; i++) |
| dvb_play(av7110, buf, len, 0, 1); |
| |
| av7110_ipack_flush(&av7110->ipack[1]); |
| return 0; |
| } |
| |
| |
| static int dvb_video_ioctl(struct inode *inode, struct file *file, |
| unsigned int cmd, void *parg) |
| { |
| struct dvb_device *dvbdev = (struct dvb_device *) file->private_data; |
| struct av7110 *av7110 = (struct av7110 *) dvbdev->priv; |
| unsigned long arg = (unsigned long) parg; |
| int ret = 0; |
| |
| dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd); |
| |
| if ((file->f_flags & O_ACCMODE) == O_RDONLY) { |
| if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT && |
| cmd != VIDEO_GET_SIZE ) { |
| return -EPERM; |
| } |
| } |
| |
| switch (cmd) { |
| case VIDEO_STOP: |
| av7110->videostate.play_state = VIDEO_STOPPED; |
| if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) |
| ret = av7110_av_stop(av7110, RP_VIDEO); |
| else |
| ret = vidcom(av7110, VIDEO_CMD_STOP, |
| av7110->videostate.video_blank ? 0 : 1); |
| if (!ret) |
| av7110->trickmode = TRICK_NONE; |
| break; |
| |
| case VIDEO_PLAY: |
| av7110->trickmode = TRICK_NONE; |
| if (av7110->videostate.play_state == VIDEO_FREEZED) { |
| av7110->videostate.play_state = VIDEO_PLAYING; |
| ret = vidcom(av7110, VIDEO_CMD_PLAY, 0); |
| if (ret) |
| break; |
| } |
| |
| if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) { |
| if (av7110->playing == RP_AV) { |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0); |
| if (ret) |
| break; |
| av7110->playing &= ~RP_VIDEO; |
| } |
| ret = av7110_av_start_play(av7110, RP_VIDEO); |
| } |
| if (!ret) |
| ret = vidcom(av7110, VIDEO_CMD_PLAY, 0); |
| if (!ret) |
| av7110->videostate.play_state = VIDEO_PLAYING; |
| break; |
| |
| case VIDEO_FREEZE: |
| av7110->videostate.play_state = VIDEO_FREEZED; |
| if (av7110->playing & RP_VIDEO) |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0); |
| else |
| ret = vidcom(av7110, VIDEO_CMD_FREEZE, 1); |
| if (!ret) |
| av7110->trickmode = TRICK_FREEZE; |
| break; |
| |
| case VIDEO_CONTINUE: |
| if (av7110->playing & RP_VIDEO) |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0); |
| if (!ret) |
| ret = vidcom(av7110, VIDEO_CMD_PLAY, 0); |
| if (!ret) { |
| av7110->videostate.play_state = VIDEO_PLAYING; |
| av7110->trickmode = TRICK_NONE; |
| } |
| break; |
| |
| case VIDEO_SELECT_SOURCE: |
| av7110->videostate.stream_source = (video_stream_source_t) arg; |
| break; |
| |
| case VIDEO_SET_BLANK: |
| av7110->videostate.video_blank = (int) arg; |
| break; |
| |
| case VIDEO_GET_STATUS: |
| memcpy(parg, &av7110->videostate, sizeof(struct video_status)); |
| break; |
| |
| case VIDEO_GET_EVENT: |
| ret = dvb_video_get_event(av7110, parg, file->f_flags); |
| break; |
| |
| case VIDEO_GET_SIZE: |
| memcpy(parg, &av7110->video_size, sizeof(video_size_t)); |
| break; |
| |
| case VIDEO_SET_DISPLAY_FORMAT: |
| { |
| video_displayformat_t format = (video_displayformat_t) arg; |
| u16 val = 0; |
| |
| switch (format) { |
| case VIDEO_PAN_SCAN: |
| val = VID_PAN_SCAN_PREF; |
| break; |
| |
| case VIDEO_LETTER_BOX: |
| val = VID_VC_AND_PS_PREF; |
| break; |
| |
| case VIDEO_CENTER_CUT_OUT: |
| val = VID_CENTRE_CUT_PREF; |
| break; |
| |
| default: |
| ret = -EINVAL; |
| } |
| if (ret < 0) |
| break; |
| av7110->videostate.display_format = format; |
| ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType, |
| 1, (u16) val); |
| break; |
| } |
| |
| case VIDEO_SET_FORMAT: |
| if (arg > 1) { |
| ret = -EINVAL; |
| break; |
| } |
| av7110->display_ar = arg; |
| ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType, |
| 1, (u16) arg); |
| break; |
| |
| case VIDEO_STILLPICTURE: |
| { |
| struct video_still_picture *pic = |
| (struct video_still_picture *) parg; |
| av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY; |
| dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout); |
| ret = play_iframe(av7110, pic->iFrame, pic->size, |
| file->f_flags & O_NONBLOCK); |
| break; |
| } |
| |
| case VIDEO_FAST_FORWARD: |
| //note: arg is ignored by firmware |
| if (av7110->playing & RP_VIDEO) |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, |
| __Scan_I, 2, AV_PES, 0); |
| else |
| ret = vidcom(av7110, VIDEO_CMD_FFWD, arg); |
| if (!ret) { |
| av7110->trickmode = TRICK_FAST; |
| av7110->videostate.play_state = VIDEO_PLAYING; |
| } |
| break; |
| |
| case VIDEO_SLOWMOTION: |
| if (av7110->playing&RP_VIDEO) { |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0); |
| if (!ret) |
| ret = vidcom(av7110, VIDEO_CMD_SLOW, arg); |
| } else { |
| ret = vidcom(av7110, VIDEO_CMD_PLAY, 0); |
| if (!ret) |
| ret = vidcom(av7110, VIDEO_CMD_STOP, 0); |
| if (!ret) |
| ret = vidcom(av7110, VIDEO_CMD_SLOW, arg); |
| } |
| if (!ret) { |
| av7110->trickmode = TRICK_SLOW; |
| av7110->videostate.play_state = VIDEO_PLAYING; |
| } |
| break; |
| |
| case VIDEO_GET_CAPABILITIES: |
| *(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 | |
| VIDEO_CAP_SYS | VIDEO_CAP_PROG; |
| break; |
| |
| case VIDEO_CLEAR_BUFFER: |
| dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout); |
| av7110_ipack_reset(&av7110->ipack[1]); |
| |
| if (av7110->playing == RP_AV) { |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, |
| __Play, 2, AV_PES, 0); |
| if (ret) |
| break; |
| if (av7110->trickmode == TRICK_FAST) |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, |
| __Scan_I, 2, AV_PES, 0); |
| if (av7110->trickmode == TRICK_SLOW) { |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, |
| __Slow, 2, 0, 0); |
| if (!ret) |
| ret = vidcom(av7110, VIDEO_CMD_SLOW, arg); |
| } |
| if (av7110->trickmode == TRICK_FREEZE) |
| ret = vidcom(av7110, VIDEO_CMD_STOP, 1); |
| } |
| break; |
| |
| case VIDEO_SET_STREAMTYPE: |
| |
| break; |
| |
| default: |
| ret = -ENOIOCTLCMD; |
| break; |
| } |
| return ret; |
| } |
| |
| static int dvb_audio_ioctl(struct inode *inode, struct file *file, |
| unsigned int cmd, void *parg) |
| { |
| struct dvb_device *dvbdev = (struct dvb_device *) file->private_data; |
| struct av7110 *av7110 = (struct av7110 *) dvbdev->priv; |
| unsigned long arg = (unsigned long) parg; |
| int ret = 0; |
| |
| dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd); |
| |
| if (((file->f_flags & O_ACCMODE) == O_RDONLY) && |
| (cmd != AUDIO_GET_STATUS)) |
| return -EPERM; |
| |
| switch (cmd) { |
| case AUDIO_STOP: |
| if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY) |
| ret = av7110_av_stop(av7110, RP_AUDIO); |
| else |
| ret = audcom(av7110, AUDIO_CMD_MUTE); |
| if (!ret) |
| av7110->audiostate.play_state = AUDIO_STOPPED; |
| break; |
| |
| case AUDIO_PLAY: |
| if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY) |
| ret = av7110_av_start_play(av7110, RP_AUDIO); |
| if (!ret) |
| ret = audcom(av7110, AUDIO_CMD_UNMUTE); |
| if (!ret) |
| av7110->audiostate.play_state = AUDIO_PLAYING; |
| break; |
| |
| case AUDIO_PAUSE: |
| ret = audcom(av7110, AUDIO_CMD_MUTE); |
| if (!ret) |
| av7110->audiostate.play_state = AUDIO_PAUSED; |
| break; |
| |
| case AUDIO_CONTINUE: |
| if (av7110->audiostate.play_state == AUDIO_PAUSED) { |
| av7110->audiostate.play_state = AUDIO_PLAYING; |
| ret = audcom(av7110, AUDIO_CMD_UNMUTE | AUDIO_CMD_PCM16); |
| } |
| break; |
| |
| case AUDIO_SELECT_SOURCE: |
| av7110->audiostate.stream_source = (audio_stream_source_t) arg; |
| break; |
| |
| case AUDIO_SET_MUTE: |
| { |
| ret = audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE); |
| if (!ret) |
| av7110->audiostate.mute_state = (int) arg; |
| break; |
| } |
| |
| case AUDIO_SET_AV_SYNC: |
| av7110->audiostate.AV_sync_state = (int) arg; |
| ret = audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF); |
| break; |
| |
| case AUDIO_SET_BYPASS_MODE: |
| if (FW_VERSION(av7110->arm_app) < 0x2621) |
| ret = -EINVAL; |
| av7110->audiostate.bypass_mode = (int)arg; |
| break; |
| |
| case AUDIO_CHANNEL_SELECT: |
| av7110->audiostate.channel_select = (audio_channel_select_t) arg; |
| |
| switch(av7110->audiostate.channel_select) { |
| case AUDIO_STEREO: |
| ret = audcom(av7110, AUDIO_CMD_STEREO); |
| if (!ret) |
| if (av7110->adac_type == DVB_ADAC_CRYSTAL) |
| i2c_writereg(av7110, 0x20, 0x02, 0x49); |
| break; |
| |
| case AUDIO_MONO_LEFT: |
| ret = audcom(av7110, AUDIO_CMD_MONO_L); |
| if (!ret) |
| if (av7110->adac_type == DVB_ADAC_CRYSTAL) |
| i2c_writereg(av7110, 0x20, 0x02, 0x4a); |
| break; |
| |
| case AUDIO_MONO_RIGHT: |
| ret = audcom(av7110, AUDIO_CMD_MONO_R); |
| if (!ret) |
| if (av7110->adac_type == DVB_ADAC_CRYSTAL) |
| i2c_writereg(av7110, 0x20, 0x02, 0x45); |
| break; |
| |
| default: |
| ret = -EINVAL; |
| break; |
| } |
| break; |
| |
| case AUDIO_GET_STATUS: |
| memcpy(parg, &av7110->audiostate, sizeof(struct audio_status)); |
| break; |
| |
| case AUDIO_GET_CAPABILITIES: |
| if (FW_VERSION(av7110->arm_app) < 0x2621) |
| *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2; |
| else |
| *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_DTS | AUDIO_CAP_AC3 | |
| AUDIO_CAP_MP1 | AUDIO_CAP_MP2; |
| break; |
| |
| case AUDIO_CLEAR_BUFFER: |
| dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout); |
| av7110_ipack_reset(&av7110->ipack[0]); |
| if (av7110->playing == RP_AV) |
| ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, |
| __Play, 2, AV_PES, 0); |
| break; |
| case AUDIO_SET_ID: |
| |
| break; |
| case AUDIO_SET_MIXER: |
| { |
| struct audio_mixer *amix = (struct audio_mixer *)parg; |
| |
| ret = av7110_set_volume(av7110, amix->volume_left, amix->volume_right); |
| break; |
| } |
| case AUDIO_SET_STREAMTYPE: |
| break; |
| default: |
| ret = -ENOIOCTLCMD; |
| } |
| return ret; |
| } |
| |
| |
| static int dvb_video_open(struct inode *inode, struct file *file) |
| { |
| struct dvb_device *dvbdev = (struct dvb_device *) file->private_data; |
| struct av7110 *av7110 = (struct av7110 *) dvbdev->priv; |
| int err; |
| |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| if ((err = dvb_generic_open(inode, file)) < 0) |
| return err; |
| |
| if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
| dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout); |
| dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout); |
| av7110->video_blank = 1; |
| av7110->audiostate.AV_sync_state = 1; |
| av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX; |
| |
| /* empty event queue */ |
| av7110->video_events.eventr = av7110->video_events.eventw = 0; |
| } |
| |
| return 0; |
| } |
| |
| static int dvb_video_release(struct inode *inode, struct file *file) |
| { |
| struct dvb_device *dvbdev = (struct dvb_device *) file->private_data; |
| struct av7110 *av7110 = (struct av7110 *) dvbdev->priv; |
| |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
| av7110_av_stop(av7110, RP_VIDEO); |
| } |
| |
| return dvb_generic_release(inode, file); |
| } |
| |
| static int dvb_audio_open(struct inode *inode, struct file *file) |
| { |
| struct dvb_device *dvbdev = (struct dvb_device *) file->private_data; |
| struct av7110 *av7110 = (struct av7110 *) dvbdev->priv; |
| int err=dvb_generic_open(inode, file); |
| |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| if (err < 0) |
| return err; |
| dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout); |
| av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX; |
| return 0; |
| } |
| |
| static int dvb_audio_release(struct inode *inode, struct file *file) |
| { |
| struct dvb_device *dvbdev = (struct dvb_device *) file->private_data; |
| struct av7110 *av7110 = (struct av7110 *) dvbdev->priv; |
| |
| dprintk(2, "av7110:%p, \n", av7110); |
| |
| av7110_av_stop(av7110, RP_AUDIO); |
| return dvb_generic_release(inode, file); |
| } |
| |
| |
| |
| /****************************************************************************** |
| * driver registration |
| ******************************************************************************/ |
| |
| static struct file_operations dvb_video_fops = { |
| .owner = THIS_MODULE, |
| .write = dvb_video_write, |
| .ioctl = dvb_generic_ioctl, |
| .open = dvb_video_open, |
| .release = dvb_video_release, |
| .poll = dvb_video_poll, |
| }; |
| |
| static struct dvb_device dvbdev_video = { |
| .priv = NULL, |
| .users = 6, |
| .readers = 5, /* arbitrary */ |
| .writers = 1, |
| .fops = &dvb_video_fops, |
| .kernel_ioctl = dvb_video_ioctl, |
| }; |
| |
| static struct file_operations dvb_audio_fops = { |
| .owner = THIS_MODULE, |
| .write = dvb_audio_write, |
| .ioctl = dvb_generic_ioctl, |
| .open = dvb_audio_open, |
| .release = dvb_audio_release, |
| .poll = dvb_audio_poll, |
| }; |
| |
| static struct dvb_device dvbdev_audio = { |
| .priv = NULL, |
| .users = 1, |
| .writers = 1, |
| .fops = &dvb_audio_fops, |
| .kernel_ioctl = dvb_audio_ioctl, |
| }; |
| |
| |
| int av7110_av_register(struct av7110 *av7110) |
| { |
| av7110->audiostate.AV_sync_state = 0; |
| av7110->audiostate.mute_state = 0; |
| av7110->audiostate.play_state = AUDIO_STOPPED; |
| av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX; |
| av7110->audiostate.channel_select = AUDIO_STEREO; |
| av7110->audiostate.bypass_mode = 0; |
| |
| av7110->videostate.video_blank = 0; |
| av7110->videostate.play_state = VIDEO_STOPPED; |
| av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX; |
| av7110->videostate.video_format = VIDEO_FORMAT_4_3; |
| av7110->videostate.display_format = VIDEO_CENTER_CUT_OUT; |
| av7110->display_ar = VIDEO_FORMAT_4_3; |
| |
| init_waitqueue_head(&av7110->video_events.wait_queue); |
| spin_lock_init(&av7110->video_events.lock); |
| av7110->video_events.eventw = av7110->video_events.eventr = 0; |
| av7110->video_events.overflow = 0; |
| memset(&av7110->video_size, 0, sizeof (video_size_t)); |
| |
| dvb_register_device(&av7110->dvb_adapter, &av7110->video_dev, |
| &dvbdev_video, av7110, DVB_DEVICE_VIDEO); |
| |
| dvb_register_device(&av7110->dvb_adapter, &av7110->audio_dev, |
| &dvbdev_audio, av7110, DVB_DEVICE_AUDIO); |
| |
| return 0; |
| } |
| |
| void av7110_av_unregister(struct av7110 *av7110) |
| { |
| dvb_unregister_device(av7110->audio_dev); |
| dvb_unregister_device(av7110->video_dev); |
| } |
| |
| int av7110_av_init(struct av7110 *av7110) |
| { |
| void (*play[])(u8 *, int, void *) = { play_audio_cb, play_video_cb }; |
| int i, ret; |
| |
| for (i = 0; i < 2; i++) { |
| struct ipack *ipack = av7110->ipack + i; |
| |
| ret = av7110_ipack_init(ipack, IPACKS, play[i]); |
| if (ret < 0) { |
| if (i) |
| av7110_ipack_free(--ipack); |
| goto out; |
| } |
| ipack->data = av7110; |
| } |
| |
| dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN); |
| dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN); |
| |
| av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN); |
| av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS; |
| out: |
| return ret; |
| } |
| |
| void av7110_av_exit(struct av7110 *av7110) |
| { |
| av7110_ipack_free(&av7110->ipack[0]); |
| av7110_ipack_free(&av7110->ipack[1]); |
| } |