diff options
Diffstat (limited to 'drivers/media/dvb/ttpci/av7110_av.c')
| -rw-r--r-- | drivers/media/dvb/ttpci/av7110_av.c | 1459 |
1 files changed, 1459 insertions, 0 deletions
diff --git a/drivers/media/dvb/ttpci/av7110_av.c b/drivers/media/dvb/ttpci/av7110_av.c new file mode 100644 index 00000000000..d77e8a00688 --- /dev/null +++ b/drivers/media/dvb/ttpci/av7110_av.c @@ -0,0 +1,1459 @@ +/* + * 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) +{ + 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]); + 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]); + 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]); + av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AV_PES, 0); + break; + } + return 0; +} + +int av7110_av_start_play(struct av7110 *av7110, int av) +{ + 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: + av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0); + break; + case RP_VIDEO: + av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0); + av7110->sinfo = 0; + break; + case RP_AV: + av7110->sinfo = 0; + av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AV_PES, 0); + break; + } + return av7110->playing; +} + +void av7110_av_stop(struct av7110 *av7110, int av) +{ + dprintk(2, "av7110:%p, \n", av7110); + + if (!(av7110->playing & av) && !(av7110->rec_mode & av)) + return; + + av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0); + if (av7110->playing) { + av7110->playing &= ~av; + switch (av7110->playing) { + case RP_AUDIO: + av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0); + break; + case RP_VIDEO: + av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0); + break; + case RP_NONE: + av7110_set_vidmode(av7110, av7110->vidmode); + break; + } + } else { + av7110->rec_mode &= ~av; + switch (av7110->rec_mode) { + case RP_AUDIO: + av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0); + break; + case RP_VIDEO: + av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0); + break; + case RP_NONE: + break; + } + } +} + + +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_MSP: + 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; +} + +void av7110_set_vidmode(struct av7110 *av7110, int mode) +{ + dprintk(2, "av7110:%p, \n", av7110); + + av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode); + + if (!av7110->playing) { + ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO], + av7110->pids[DMX_PES_AUDIO], + av7110->pids[DMX_PES_TELETEXT], + 0, av7110->pids[DMX_PES_PCR]); + av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0); + } +} + + +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 void get_video_format(struct av7110 *av7110, u8 *buf, int count) +{ + int i; + int hsize, vsize; + int sw; + u8 *p; + + dprintk(2, "av7110:%p, \n", av7110); + + if (av7110->sinfo) + return; + 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); + av7110_set_vidmode(av7110, sw2mode[sw]); + dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw); + av7110->sinfo = 1; + break; + } +} + + +/**************************************************************************** + * 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(2, "av7110:%p, \n", av7110); + + 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) + av7110_av_stop(av7110, RP_VIDEO); + else + vidcom(av7110, VIDEO_CMD_STOP, + av7110->videostate.video_blank ? 0 : 1); + 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; + vidcom(av7110, VIDEO_CMD_PLAY, 0); + } + + if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) { + if (av7110->playing == RP_AV) { + av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0); + av7110->playing &= ~RP_VIDEO; + } + av7110_av_start_play(av7110, RP_VIDEO); + vidcom(av7110, VIDEO_CMD_PLAY, 0); + } else { + //av7110_av_stop(av7110, RP_VIDEO); + vidcom(av7110, VIDEO_CMD_PLAY, 0); + } + av7110->videostate.play_state = VIDEO_PLAYING; + break; + + case VIDEO_FREEZE: + av7110->videostate.play_state = VIDEO_FREEZED; + if (av7110->playing & RP_VIDEO) + av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0); + else + vidcom(av7110, VIDEO_CMD_FREEZE, 1); + av7110->trickmode = TRICK_FREEZE; + break; + + case VIDEO_CONTINUE: + if (av7110->playing & RP_VIDEO) + av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0); + vidcom(av7110, VIDEO_CMD_PLAY, 0); + 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.video_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) + av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, + __Scan_I, 2, AV_PES, 0); + else + vidcom(av7110, VIDEO_CMD_FFWD, arg); + av7110->trickmode = TRICK_FAST; + av7110->videostate.play_state = VIDEO_PLAYING; + break; + + case VIDEO_SLOWMOTION: + if (av7110->playing&RP_VIDEO) { + av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0); + vidcom(av7110, VIDEO_CMD_SLOW, arg); + } else { + vidcom(av7110, VIDEO_CMD_PLAY, 0); + vidcom(av7110, VIDEO_CMD_STOP, 0); + vidcom(av7110, VIDEO_CMD_SLOW, arg); + } + 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) { + av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, + __Play, 2, AV_PES, 0); + if (av7110->trickmode == TRICK_FAST) + av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, + __Scan_I, 2, AV_PES, 0); + if (av7110->trickmode == TRICK_SLOW) { + av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, + __Slow, 2, 0, 0); + vidcom(av7110, VIDEO_CMD_SLOW, arg); + } + if (av7110->trickmode == TRICK_FREEZE) + 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(2, "av7110:%p, \n", av7110); + + 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) + av7110_av_stop(av7110, RP_AUDIO); + else + audcom(av7110, AUDIO_CMD_MUTE); + av7110->audiostate.play_state = AUDIO_STOPPED; + break; + + case AUDIO_PLAY: + if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY) + av7110_av_start_play(av7110, RP_AUDIO); + audcom(av7110, AUDIO_CMD_UNMUTE); + av7110->audiostate.play_state = AUDIO_PLAYING; + break; + + case AUDIO_PAUSE: + audcom(av7110, AUDIO_CMD_MUTE); + av7110->audiostate.play_state = AUDIO_PAUSED; + break; + + case AUDIO_CONTINUE: + if (av7110->audiostate.play_state == AUDIO_PAUSED) { + av7110->audiostate.play_state = AUDIO_PLAYING; + audcom(av7110, AUDIO_CMD_MUTE | AUDIO_CMD_PCM16); + } + break; + + case AUDIO_SELECT_SOURCE: + av7110->audiostate.stream_source = (audio_stream_source_t) arg; + break; + + case AUDIO_SET_MUTE: + { + audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE); + av7110->audiostate.mute_state = (int) arg; + break; + } + + case AUDIO_SET_AV_SYNC: + av7110->audiostate.AV_sync_state = (int) arg; + audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF); + break; + + case AUDIO_SET_BYPASS_MODE: + ret = -EINVAL; + break; + + case AUDIO_CHANNEL_SELECT: + av7110->audiostate.channel_select = (audio_channel_select_t) arg; + + switch(av7110->audiostate.channel_select) { + case AUDIO_STEREO: + audcom(av7110, AUDIO_CMD_STEREO); + break; + + case AUDIO_MONO_LEFT: + audcom(av7110, AUDIO_CMD_MONO_L); + break; + + case AUDIO_MONO_RIGHT: + audcom(av7110, AUDIO_CMD_MONO_R); + break; + + default: + ret = -EINVAL; + break; + } + break; + + case AUDIO_GET_STATUS: + memcpy(parg, &av7110->audiostate, sizeof(struct audio_status)); + break; + + case AUDIO_GET_CAPABILITIES: + *(int *)parg = AUDIO_CAP_LPCM | 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) + 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; + + 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; + + av7110->vidmode = VIDEO_MODE_PAL; + + 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]); +} |