1da607e19SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2e2786ca6STakashi Sakamoto /* 3e2786ca6STakashi Sakamoto * oxfw_stream.c - a part of driver for OXFW970/971 based devices 4e2786ca6STakashi Sakamoto * 5e2786ca6STakashi Sakamoto * Copyright (c) 2014 Takashi Sakamoto 6e2786ca6STakashi Sakamoto */ 7e2786ca6STakashi Sakamoto 8e2786ca6STakashi Sakamoto #include "oxfw.h" 9f3699e2cSTakashi Sakamoto #include <linux/delay.h> 10e2786ca6STakashi Sakamoto 115cd1d3f4STakashi Sakamoto #define AVC_GENERIC_FRAME_MAXIMUM_BYTES 512 12bdaedca7STakashi Sakamoto #define READY_TIMEOUT_MS 200 135cd1d3f4STakashi Sakamoto 145cd1d3f4STakashi Sakamoto /* 155cd1d3f4STakashi Sakamoto * According to datasheet of Oxford Semiconductor: 165cd1d3f4STakashi Sakamoto * OXFW970: 32.0/44.1/48.0/96.0 Khz, 8 audio channels I/O 175cd1d3f4STakashi Sakamoto * OXFW971: 32.0/44.1/48.0/88.2/96.0/192.0 kHz, 16 audio channels I/O, MIDI I/O 185cd1d3f4STakashi Sakamoto */ 195cd1d3f4STakashi Sakamoto static const unsigned int oxfw_rate_table[] = { 205cd1d3f4STakashi Sakamoto [0] = 32000, 215cd1d3f4STakashi Sakamoto [1] = 44100, 225cd1d3f4STakashi Sakamoto [2] = 48000, 235cd1d3f4STakashi Sakamoto [3] = 88200, 245cd1d3f4STakashi Sakamoto [4] = 96000, 255cd1d3f4STakashi Sakamoto [5] = 192000, 265cd1d3f4STakashi Sakamoto }; 275cd1d3f4STakashi Sakamoto 285cd1d3f4STakashi Sakamoto /* 295cd1d3f4STakashi Sakamoto * See Table 5.7 – Sampling frequency for Multi-bit Audio 305cd1d3f4STakashi Sakamoto * in AV/C Stream Format Information Specification 1.1 (Apr 2005, 1394TA) 315cd1d3f4STakashi Sakamoto */ 325cd1d3f4STakashi Sakamoto static const unsigned int avc_stream_rate_table[] = { 335cd1d3f4STakashi Sakamoto [0] = 0x02, 345cd1d3f4STakashi Sakamoto [1] = 0x03, 355cd1d3f4STakashi Sakamoto [2] = 0x04, 365cd1d3f4STakashi Sakamoto [3] = 0x0a, 375cd1d3f4STakashi Sakamoto [4] = 0x05, 385cd1d3f4STakashi Sakamoto [5] = 0x07, 395cd1d3f4STakashi Sakamoto }; 405cd1d3f4STakashi Sakamoto 41b0ac0009STakashi Sakamoto static int set_rate(struct snd_oxfw *oxfw, unsigned int rate) 42b0ac0009STakashi Sakamoto { 43b0ac0009STakashi Sakamoto int err; 44b0ac0009STakashi Sakamoto 45b0ac0009STakashi Sakamoto err = avc_general_set_sig_fmt(oxfw->unit, rate, 46b0ac0009STakashi Sakamoto AVC_GENERAL_PLUG_DIR_IN, 0); 47b0ac0009STakashi Sakamoto if (err < 0) 48b0ac0009STakashi Sakamoto goto end; 49b0ac0009STakashi Sakamoto 50b0ac0009STakashi Sakamoto if (oxfw->has_output) 51b0ac0009STakashi Sakamoto err = avc_general_set_sig_fmt(oxfw->unit, rate, 52b0ac0009STakashi Sakamoto AVC_GENERAL_PLUG_DIR_OUT, 0); 53b0ac0009STakashi Sakamoto end: 54b0ac0009STakashi Sakamoto return err; 55b0ac0009STakashi Sakamoto } 56b0ac0009STakashi Sakamoto 57f3699e2cSTakashi Sakamoto static int set_stream_format(struct snd_oxfw *oxfw, struct amdtp_stream *s, 58f3699e2cSTakashi Sakamoto unsigned int rate, unsigned int pcm_channels) 59f3699e2cSTakashi Sakamoto { 60f3699e2cSTakashi Sakamoto u8 **formats; 61f3699e2cSTakashi Sakamoto struct snd_oxfw_stream_formation formation; 62f3699e2cSTakashi Sakamoto enum avc_general_plug_dir dir; 635580ba7bSDan Carpenter unsigned int len; 645580ba7bSDan Carpenter int i, err; 65f3699e2cSTakashi Sakamoto 66b0ac0009STakashi Sakamoto if (s == &oxfw->tx_stream) { 67b0ac0009STakashi Sakamoto formats = oxfw->tx_stream_formats; 68b0ac0009STakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_OUT; 69b0ac0009STakashi Sakamoto } else { 70f3699e2cSTakashi Sakamoto formats = oxfw->rx_stream_formats; 71f3699e2cSTakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_IN; 72b0ac0009STakashi Sakamoto } 73f3699e2cSTakashi Sakamoto 74f3699e2cSTakashi Sakamoto /* Seek stream format for requirements. */ 75f3699e2cSTakashi Sakamoto for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 76f3699e2cSTakashi Sakamoto err = snd_oxfw_stream_parse_format(formats[i], &formation); 77f3699e2cSTakashi Sakamoto if (err < 0) 78f3699e2cSTakashi Sakamoto return err; 79f3699e2cSTakashi Sakamoto 80f3699e2cSTakashi Sakamoto if ((formation.rate == rate) && (formation.pcm == pcm_channels)) 81f3699e2cSTakashi Sakamoto break; 82f3699e2cSTakashi Sakamoto } 83f3699e2cSTakashi Sakamoto if (i == SND_OXFW_STREAM_FORMAT_ENTRIES) 84f3699e2cSTakashi Sakamoto return -EINVAL; 85f3699e2cSTakashi Sakamoto 86f3699e2cSTakashi Sakamoto /* If assumed, just change rate. */ 87f3699e2cSTakashi Sakamoto if (oxfw->assumed) 88b0ac0009STakashi Sakamoto return set_rate(oxfw, rate); 89f3699e2cSTakashi Sakamoto 90f3699e2cSTakashi Sakamoto /* Calculate format length. */ 91f3699e2cSTakashi Sakamoto len = 5 + formats[i][4] * 2; 92f3699e2cSTakashi Sakamoto 93f3699e2cSTakashi Sakamoto err = avc_stream_set_format(oxfw->unit, dir, 0, formats[i], len); 94f3699e2cSTakashi Sakamoto if (err < 0) 95f3699e2cSTakashi Sakamoto return err; 96f3699e2cSTakashi Sakamoto 97f3699e2cSTakashi Sakamoto /* Some requests just after changing format causes freezing. */ 98f3699e2cSTakashi Sakamoto msleep(100); 99f3699e2cSTakashi Sakamoto 100f3699e2cSTakashi Sakamoto return 0; 101f3699e2cSTakashi Sakamoto } 102f3699e2cSTakashi Sakamoto 103521b2e11STakashi Sakamoto static int start_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream) 104e2786ca6STakashi Sakamoto { 105f3699e2cSTakashi Sakamoto struct cmp_connection *conn; 106f3699e2cSTakashi Sakamoto int err; 107f3699e2cSTakashi Sakamoto 1080356ce3aSTakashi Sakamoto if (stream == &oxfw->rx_stream) 109f3699e2cSTakashi Sakamoto conn = &oxfw->in_conn; 1100356ce3aSTakashi Sakamoto else 111b0ac0009STakashi Sakamoto conn = &oxfw->out_conn; 112f3699e2cSTakashi Sakamoto 1137bc93821STakashi Sakamoto err = cmp_connection_establish(conn); 114f3699e2cSTakashi Sakamoto if (err < 0) 115e34244ddSTakashi Sakamoto return err; 116f3699e2cSTakashi Sakamoto 117ac5d7786STakashi Sakamoto err = amdtp_domain_add_stream(&oxfw->domain, stream, 118ac5d7786STakashi Sakamoto conn->resources.channel, conn->speed); 119f3699e2cSTakashi Sakamoto if (err < 0) { 120f3699e2cSTakashi Sakamoto cmp_connection_break(conn); 121e34244ddSTakashi Sakamoto return err; 122f3699e2cSTakashi Sakamoto } 123f3699e2cSTakashi Sakamoto 124e34244ddSTakashi Sakamoto return 0; 125f3699e2cSTakashi Sakamoto } 126f3699e2cSTakashi Sakamoto 127b0ac0009STakashi Sakamoto static int check_connection_used_by_others(struct snd_oxfw *oxfw, 128b0ac0009STakashi Sakamoto struct amdtp_stream *stream) 129f3699e2cSTakashi Sakamoto { 130b0ac0009STakashi Sakamoto struct cmp_connection *conn; 131b0ac0009STakashi Sakamoto bool used; 132b0ac0009STakashi Sakamoto int err; 133b0ac0009STakashi Sakamoto 134b0ac0009STakashi Sakamoto if (stream == &oxfw->tx_stream) 135b0ac0009STakashi Sakamoto conn = &oxfw->out_conn; 136b0ac0009STakashi Sakamoto else 137b0ac0009STakashi Sakamoto conn = &oxfw->in_conn; 138b0ac0009STakashi Sakamoto 139b0ac0009STakashi Sakamoto err = cmp_connection_check_used(conn, &used); 140b0ac0009STakashi Sakamoto if ((err >= 0) && used && !amdtp_stream_running(stream)) { 141b0ac0009STakashi Sakamoto dev_err(&oxfw->unit->device, 142b0ac0009STakashi Sakamoto "Connection established by others: %cPCR[%d]\n", 143b0ac0009STakashi Sakamoto (conn->direction == CMP_OUTPUT) ? 'o' : 'i', 144b0ac0009STakashi Sakamoto conn->pcr_index); 145b0ac0009STakashi Sakamoto err = -EBUSY; 146b0ac0009STakashi Sakamoto } 147b0ac0009STakashi Sakamoto 148b0ac0009STakashi Sakamoto return err; 149b0ac0009STakashi Sakamoto } 150b0ac0009STakashi Sakamoto 151779f0dbaSTakashi Sakamoto static int init_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream) 152b0ac0009STakashi Sakamoto { 153b0ac0009STakashi Sakamoto struct cmp_connection *conn; 154b0ac0009STakashi Sakamoto enum cmp_direction c_dir; 155b0ac0009STakashi Sakamoto enum amdtp_stream_direction s_dir; 156*67bb66d3STakashi Sakamoto unsigned int flags = 0; 157b0ac0009STakashi Sakamoto int err; 158b0ac0009STakashi Sakamoto 15907a35edcSTakashi Sakamoto if (!(oxfw->quirks & SND_OXFW_QUIRK_BLOCKING_TRANSMISSION)) 160029ffc42STakashi Sakamoto flags |= CIP_NONBLOCKING; 16107a35edcSTakashi Sakamoto else 162029ffc42STakashi Sakamoto flags |= CIP_BLOCKING; 16307a35edcSTakashi Sakamoto 164*67bb66d3STakashi Sakamoto // OXFW 970/971 has no function to generate playback timing according to the sequence 165*67bb66d3STakashi Sakamoto // of value in syt field, thus the packet should include NO_INFO value in the field. 166*67bb66d3STakashi Sakamoto // However, some models just ignore data blocks in packet with NO_INFO for audio data 167*67bb66d3STakashi Sakamoto // processing. 168*67bb66d3STakashi Sakamoto if (!(oxfw->quirks & SND_OXFW_QUIRK_IGNORE_NO_INFO_PACKET)) 169*67bb66d3STakashi Sakamoto flags |= CIP_UNAWARE_SYT; 170*67bb66d3STakashi Sakamoto 171b0ac0009STakashi Sakamoto if (stream == &oxfw->tx_stream) { 172b0ac0009STakashi Sakamoto conn = &oxfw->out_conn; 173b0ac0009STakashi Sakamoto c_dir = CMP_OUTPUT; 174b0ac0009STakashi Sakamoto s_dir = AMDTP_IN_STREAM; 175a092f000STakashi Sakamoto 176a092f000STakashi Sakamoto if (oxfw->quirks & SND_OXFW_QUIRK_JUMBO_PAYLOAD) 177a092f000STakashi Sakamoto flags |= CIP_JUMBO_PAYLOAD; 178a6f91693STakashi Sakamoto if (oxfw->quirks & SND_OXFW_QUIRK_WRONG_DBS) 179a092f000STakashi Sakamoto flags |= CIP_WRONG_DBS; 180b0ac0009STakashi Sakamoto } else { 181b0ac0009STakashi Sakamoto conn = &oxfw->in_conn; 182b0ac0009STakashi Sakamoto c_dir = CMP_INPUT; 183b0ac0009STakashi Sakamoto s_dir = AMDTP_OUT_STREAM; 184b0ac0009STakashi Sakamoto } 185b0ac0009STakashi Sakamoto 186b0ac0009STakashi Sakamoto err = cmp_connection_init(conn, oxfw->unit, c_dir, 0); 187b0ac0009STakashi Sakamoto if (err < 0) 188779f0dbaSTakashi Sakamoto return err; 189b0ac0009STakashi Sakamoto 190a092f000STakashi Sakamoto err = amdtp_am824_init(stream, oxfw->unit, s_dir, flags); 191b0ac0009STakashi Sakamoto if (err < 0) { 192b0ac0009STakashi Sakamoto cmp_connection_destroy(conn); 193779f0dbaSTakashi Sakamoto return err; 194b0ac0009STakashi Sakamoto } 195b0ac0009STakashi Sakamoto 196779f0dbaSTakashi Sakamoto return 0; 197b0ac0009STakashi Sakamoto } 198b0ac0009STakashi Sakamoto 1990356ce3aSTakashi Sakamoto static int keep_resources(struct snd_oxfw *oxfw, struct amdtp_stream *stream) 2000356ce3aSTakashi Sakamoto { 2010356ce3aSTakashi Sakamoto enum avc_general_plug_dir dir; 2020356ce3aSTakashi Sakamoto u8 **formats; 2030356ce3aSTakashi Sakamoto struct snd_oxfw_stream_formation formation; 2047bc93821STakashi Sakamoto struct cmp_connection *conn; 2050356ce3aSTakashi Sakamoto int i; 2060356ce3aSTakashi Sakamoto int err; 2070356ce3aSTakashi Sakamoto 2080356ce3aSTakashi Sakamoto if (stream == &oxfw->rx_stream) { 2090356ce3aSTakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_IN; 2100356ce3aSTakashi Sakamoto formats = oxfw->rx_stream_formats; 2117bc93821STakashi Sakamoto conn = &oxfw->in_conn; 2120356ce3aSTakashi Sakamoto } else { 2130356ce3aSTakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_OUT; 2140356ce3aSTakashi Sakamoto formats = oxfw->tx_stream_formats; 2157bc93821STakashi Sakamoto conn = &oxfw->out_conn; 2160356ce3aSTakashi Sakamoto } 2170356ce3aSTakashi Sakamoto 2180356ce3aSTakashi Sakamoto err = snd_oxfw_stream_get_current_formation(oxfw, dir, &formation); 2190356ce3aSTakashi Sakamoto if (err < 0) 2200356ce3aSTakashi Sakamoto return err; 2210356ce3aSTakashi Sakamoto 2220356ce3aSTakashi Sakamoto for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 2230356ce3aSTakashi Sakamoto struct snd_oxfw_stream_formation fmt; 2240356ce3aSTakashi Sakamoto 2250356ce3aSTakashi Sakamoto if (formats[i] == NULL) 2260356ce3aSTakashi Sakamoto break; 2270356ce3aSTakashi Sakamoto 2280356ce3aSTakashi Sakamoto err = snd_oxfw_stream_parse_format(formats[i], &fmt); 2290356ce3aSTakashi Sakamoto if (err < 0) 2300356ce3aSTakashi Sakamoto return err; 2310356ce3aSTakashi Sakamoto 2320356ce3aSTakashi Sakamoto if (fmt.rate == formation.rate && fmt.pcm == formation.pcm && 2330356ce3aSTakashi Sakamoto fmt.midi == formation.midi) 2340356ce3aSTakashi Sakamoto break; 2350356ce3aSTakashi Sakamoto } 2360356ce3aSTakashi Sakamoto if (i == SND_OXFW_STREAM_FORMAT_ENTRIES) 2370356ce3aSTakashi Sakamoto return -EINVAL; 2380356ce3aSTakashi Sakamoto 2390356ce3aSTakashi Sakamoto // The stream should have one pcm channels at least. 2400356ce3aSTakashi Sakamoto if (formation.pcm == 0) 2410356ce3aSTakashi Sakamoto return -EINVAL; 2420356ce3aSTakashi Sakamoto 2437bc93821STakashi Sakamoto err = amdtp_am824_set_parameters(stream, formation.rate, formation.pcm, 2440356ce3aSTakashi Sakamoto formation.midi * 8, false); 2457bc93821STakashi Sakamoto if (err < 0) 2467bc93821STakashi Sakamoto return err; 2477bc93821STakashi Sakamoto 2487bc93821STakashi Sakamoto return cmp_connection_reserve(conn, amdtp_stream_get_max_payload(stream)); 2490356ce3aSTakashi Sakamoto } 2500356ce3aSTakashi Sakamoto 2514f380d00STakashi Sakamoto int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw, 252b0ac0009STakashi Sakamoto struct amdtp_stream *stream, 2531d6a722cSTakashi Sakamoto unsigned int rate, unsigned int pcm_channels, 2543299d2a0STakashi Sakamoto unsigned int frames_per_period, 2553299d2a0STakashi Sakamoto unsigned int frames_per_buffer) 256b0ac0009STakashi Sakamoto { 257f3699e2cSTakashi Sakamoto struct snd_oxfw_stream_formation formation; 258b0ac0009STakashi Sakamoto enum avc_general_plug_dir dir; 2594f380d00STakashi Sakamoto int err; 260e2786ca6STakashi Sakamoto 26120358d44STakashi Sakamoto // Considering JACK/FFADO streaming: 26220358d44STakashi Sakamoto // TODO: This can be removed hwdep functionality becomes popular. 26320358d44STakashi Sakamoto err = check_connection_used_by_others(oxfw, &oxfw->rx_stream); 26420358d44STakashi Sakamoto if (err < 0) 26520358d44STakashi Sakamoto return err; 26620358d44STakashi Sakamoto if (oxfw->has_output) { 26720358d44STakashi Sakamoto err = check_connection_used_by_others(oxfw, &oxfw->tx_stream); 26820358d44STakashi Sakamoto if (err < 0) 26920358d44STakashi Sakamoto return err; 270b0ac0009STakashi Sakamoto } 271b0ac0009STakashi Sakamoto 27220358d44STakashi Sakamoto if (stream == &oxfw->tx_stream) 27320358d44STakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_OUT; 27420358d44STakashi Sakamoto else 27520358d44STakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_IN; 276b0ac0009STakashi Sakamoto 277b0ac0009STakashi Sakamoto err = snd_oxfw_stream_get_current_formation(oxfw, dir, &formation); 278e2786ca6STakashi Sakamoto if (err < 0) 27920358d44STakashi Sakamoto return err; 2804f380d00STakashi Sakamoto if (rate == 0) { 28105588d34STakashi Sakamoto rate = formation.rate; 28205588d34STakashi Sakamoto pcm_channels = formation.pcm; 2834f380d00STakashi Sakamoto } 2844f380d00STakashi Sakamoto if (formation.rate != rate || formation.pcm != pcm_channels) { 285ac5d7786STakashi Sakamoto amdtp_domain_stop(&oxfw->domain); 286ac5d7786STakashi Sakamoto 287e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 2883f2ce83dSTakashi Sakamoto cmp_connection_release(&oxfw->in_conn); 289e34244ddSTakashi Sakamoto 290e34244ddSTakashi Sakamoto if (oxfw->has_output) { 291e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 2923f2ce83dSTakashi Sakamoto cmp_connection_release(&oxfw->out_conn); 293e34244ddSTakashi Sakamoto } 2944f380d00STakashi Sakamoto } 295f3699e2cSTakashi Sakamoto 2964f380d00STakashi Sakamoto if (oxfw->substreams_count == 0 || 2974f380d00STakashi Sakamoto formation.rate != rate || formation.pcm != pcm_channels) { 298b0ac0009STakashi Sakamoto err = set_stream_format(oxfw, stream, rate, pcm_channels); 299f3699e2cSTakashi Sakamoto if (err < 0) { 300f3699e2cSTakashi Sakamoto dev_err(&oxfw->unit->device, 301f3699e2cSTakashi Sakamoto "fail to set stream format: %d\n", err); 30220358d44STakashi Sakamoto return err; 30320358d44STakashi Sakamoto } 3040356ce3aSTakashi Sakamoto 3050356ce3aSTakashi Sakamoto err = keep_resources(oxfw, &oxfw->rx_stream); 3060356ce3aSTakashi Sakamoto if (err < 0) 3070356ce3aSTakashi Sakamoto return err; 3080356ce3aSTakashi Sakamoto 3090356ce3aSTakashi Sakamoto if (oxfw->has_output) { 3100356ce3aSTakashi Sakamoto err = keep_resources(oxfw, &oxfw->tx_stream); 3117bc93821STakashi Sakamoto if (err < 0) { 3127bc93821STakashi Sakamoto cmp_connection_release(&oxfw->in_conn); 3130356ce3aSTakashi Sakamoto return err; 3140356ce3aSTakashi Sakamoto } 315f3699e2cSTakashi Sakamoto } 3161d6a722cSTakashi Sakamoto 3171d6a722cSTakashi Sakamoto err = amdtp_domain_set_events_per_period(&oxfw->domain, 3183299d2a0STakashi Sakamoto frames_per_period, frames_per_buffer); 3191d6a722cSTakashi Sakamoto if (err < 0) { 3201d6a722cSTakashi Sakamoto cmp_connection_release(&oxfw->in_conn); 3211d6a722cSTakashi Sakamoto if (oxfw->has_output) 3221d6a722cSTakashi Sakamoto cmp_connection_release(&oxfw->out_conn); 3231d6a722cSTakashi Sakamoto return err; 3241d6a722cSTakashi Sakamoto } 3257bc93821STakashi Sakamoto } 326b0ac0009STakashi Sakamoto 3274f380d00STakashi Sakamoto return 0; 3284f380d00STakashi Sakamoto } 3294f380d00STakashi Sakamoto 3304f380d00STakashi Sakamoto int snd_oxfw_stream_start_duplex(struct snd_oxfw *oxfw) 3314f380d00STakashi Sakamoto { 3324f380d00STakashi Sakamoto int err; 3334f380d00STakashi Sakamoto 3344f380d00STakashi Sakamoto if (oxfw->substreams_count == 0) 3354f380d00STakashi Sakamoto return -EIO; 3364f380d00STakashi Sakamoto 3374f380d00STakashi Sakamoto if (amdtp_streaming_error(&oxfw->rx_stream) || 3384f380d00STakashi Sakamoto amdtp_streaming_error(&oxfw->tx_stream)) { 339ac5d7786STakashi Sakamoto amdtp_domain_stop(&oxfw->domain); 3404f380d00STakashi Sakamoto 341ac5d7786STakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 342ac5d7786STakashi Sakamoto if (oxfw->has_output) 3434f380d00STakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 3444f380d00STakashi Sakamoto } 3454f380d00STakashi Sakamoto 34620358d44STakashi Sakamoto if (!amdtp_stream_running(&oxfw->rx_stream)) { 347029ffc42STakashi Sakamoto unsigned int tx_init_skip_cycles = 0; 348029ffc42STakashi Sakamoto bool replay_seq = false; 349029ffc42STakashi Sakamoto 35020358d44STakashi Sakamoto err = start_stream(oxfw, &oxfw->rx_stream); 351b0ac0009STakashi Sakamoto if (err < 0) { 352b0ac0009STakashi Sakamoto dev_err(&oxfw->unit->device, 353ac5d7786STakashi Sakamoto "fail to prepare rx stream: %d\n", err); 354ac5d7786STakashi Sakamoto goto error; 355ac5d7786STakashi Sakamoto } 356ac5d7786STakashi Sakamoto 357ac5d7786STakashi Sakamoto if (oxfw->has_output && 358ac5d7786STakashi Sakamoto !amdtp_stream_running(&oxfw->tx_stream)) { 359ac5d7786STakashi Sakamoto err = start_stream(oxfw, &oxfw->tx_stream); 360ac5d7786STakashi Sakamoto if (err < 0) { 361ac5d7786STakashi Sakamoto dev_err(&oxfw->unit->device, 362ac5d7786STakashi Sakamoto "fail to prepare tx stream: %d\n", err); 36320358d44STakashi Sakamoto goto error; 36420358d44STakashi Sakamoto } 365029ffc42STakashi Sakamoto 366029ffc42STakashi Sakamoto if (oxfw->quirks & SND_OXFW_QUIRK_JUMBO_PAYLOAD) { 367029ffc42STakashi Sakamoto // Just after changing sampling transfer frequency, many cycles are 368029ffc42STakashi Sakamoto // skipped for packet transmission. 369029ffc42STakashi Sakamoto tx_init_skip_cycles = 400; 370029ffc42STakashi Sakamoto } else { 371029ffc42STakashi Sakamoto replay_seq = true; 372029ffc42STakashi Sakamoto } 37320358d44STakashi Sakamoto } 37420358d44STakashi Sakamoto 375029ffc42STakashi Sakamoto // NOTE: The device ignores presentation time expressed by the value of syt field 376029ffc42STakashi Sakamoto // of CIP header in received packets. The sequence of the number of data blocks per 377029ffc42STakashi Sakamoto // packet is important for media clock recovery. 378029ffc42STakashi Sakamoto err = amdtp_domain_start(&oxfw->domain, tx_init_skip_cycles, replay_seq, false); 379ac5d7786STakashi Sakamoto if (err < 0) 380ac5d7786STakashi Sakamoto goto error; 381ac5d7786STakashi Sakamoto 382bdaedca7STakashi Sakamoto if (!amdtp_domain_wait_ready(&oxfw->domain, READY_TIMEOUT_MS)) { 383ac5d7786STakashi Sakamoto err = -ETIMEDOUT; 38420358d44STakashi Sakamoto goto error; 385b0ac0009STakashi Sakamoto } 386f3699e2cSTakashi Sakamoto } 387f3699e2cSTakashi Sakamoto 38820358d44STakashi Sakamoto return 0; 38920358d44STakashi Sakamoto error: 390ac5d7786STakashi Sakamoto amdtp_domain_stop(&oxfw->domain); 391ac5d7786STakashi Sakamoto 39220358d44STakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 393ac5d7786STakashi Sakamoto if (oxfw->has_output) 39420358d44STakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 395ac5d7786STakashi Sakamoto 396e2786ca6STakashi Sakamoto return err; 397e2786ca6STakashi Sakamoto } 398e2786ca6STakashi Sakamoto 399779f0dbaSTakashi Sakamoto void snd_oxfw_stream_stop_duplex(struct snd_oxfw *oxfw) 400e2786ca6STakashi Sakamoto { 4014a0a0472STakashi Sakamoto if (oxfw->substreams_count == 0) { 402ac5d7786STakashi Sakamoto amdtp_domain_stop(&oxfw->domain); 403ac5d7786STakashi Sakamoto 404e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 4057bc93821STakashi Sakamoto cmp_connection_release(&oxfw->in_conn); 406b0ac0009STakashi Sakamoto 407e34244ddSTakashi Sakamoto if (oxfw->has_output) { 408e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 4097bc93821STakashi Sakamoto cmp_connection_release(&oxfw->out_conn); 410e34244ddSTakashi Sakamoto } 41120358d44STakashi Sakamoto } 412e2786ca6STakashi Sakamoto } 413e2786ca6STakashi Sakamoto 414779f0dbaSTakashi Sakamoto static void destroy_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream) 415e2786ca6STakashi Sakamoto { 416b0ac0009STakashi Sakamoto struct cmp_connection *conn; 417e2786ca6STakashi Sakamoto 418b0ac0009STakashi Sakamoto if (stream == &oxfw->tx_stream) 419b0ac0009STakashi Sakamoto conn = &oxfw->out_conn; 420e2786ca6STakashi Sakamoto else 421b0ac0009STakashi Sakamoto conn = &oxfw->in_conn; 422b0ac0009STakashi Sakamoto 423b0ac0009STakashi Sakamoto amdtp_stream_destroy(stream); 424b0ac0009STakashi Sakamoto cmp_connection_destroy(conn); 425b0ac0009STakashi Sakamoto } 426b0ac0009STakashi Sakamoto 427779f0dbaSTakashi Sakamoto int snd_oxfw_stream_init_duplex(struct snd_oxfw *oxfw) 428779f0dbaSTakashi Sakamoto { 429779f0dbaSTakashi Sakamoto int err; 430779f0dbaSTakashi Sakamoto 431779f0dbaSTakashi Sakamoto err = init_stream(oxfw, &oxfw->rx_stream); 432779f0dbaSTakashi Sakamoto if (err < 0) 433779f0dbaSTakashi Sakamoto return err; 434779f0dbaSTakashi Sakamoto 435779f0dbaSTakashi Sakamoto if (oxfw->has_output) { 436779f0dbaSTakashi Sakamoto err = init_stream(oxfw, &oxfw->tx_stream); 437779f0dbaSTakashi Sakamoto if (err < 0) { 438779f0dbaSTakashi Sakamoto destroy_stream(oxfw, &oxfw->rx_stream); 439779f0dbaSTakashi Sakamoto return err; 440779f0dbaSTakashi Sakamoto } 441779f0dbaSTakashi Sakamoto } 442779f0dbaSTakashi Sakamoto 443ac5d7786STakashi Sakamoto err = amdtp_domain_init(&oxfw->domain); 444ac5d7786STakashi Sakamoto if (err < 0) { 445ac5d7786STakashi Sakamoto destroy_stream(oxfw, &oxfw->rx_stream); 446ac5d7786STakashi Sakamoto if (oxfw->has_output) 447ac5d7786STakashi Sakamoto destroy_stream(oxfw, &oxfw->tx_stream); 448ac5d7786STakashi Sakamoto } 449ac5d7786STakashi Sakamoto 450ac5d7786STakashi Sakamoto return err; 451779f0dbaSTakashi Sakamoto } 452779f0dbaSTakashi Sakamoto 453779f0dbaSTakashi Sakamoto // This function should be called before starting the stream or after stopping 454779f0dbaSTakashi Sakamoto // the streams. 455779f0dbaSTakashi Sakamoto void snd_oxfw_stream_destroy_duplex(struct snd_oxfw *oxfw) 456779f0dbaSTakashi Sakamoto { 457ac5d7786STakashi Sakamoto amdtp_domain_destroy(&oxfw->domain); 458ac5d7786STakashi Sakamoto 459779f0dbaSTakashi Sakamoto destroy_stream(oxfw, &oxfw->rx_stream); 460779f0dbaSTakashi Sakamoto 461779f0dbaSTakashi Sakamoto if (oxfw->has_output) 462779f0dbaSTakashi Sakamoto destroy_stream(oxfw, &oxfw->tx_stream); 463779f0dbaSTakashi Sakamoto } 464779f0dbaSTakashi Sakamoto 465779f0dbaSTakashi Sakamoto void snd_oxfw_stream_update_duplex(struct snd_oxfw *oxfw) 466b0ac0009STakashi Sakamoto { 467ac5d7786STakashi Sakamoto amdtp_domain_stop(&oxfw->domain); 468ac5d7786STakashi Sakamoto 469e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 470b0ac0009STakashi Sakamoto 471e34244ddSTakashi Sakamoto amdtp_stream_pcm_abort(&oxfw->rx_stream); 472e34244ddSTakashi Sakamoto 473e34244ddSTakashi Sakamoto if (oxfw->has_output) { 474e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 475e34244ddSTakashi Sakamoto 476e34244ddSTakashi Sakamoto amdtp_stream_pcm_abort(&oxfw->tx_stream); 477e34244ddSTakashi Sakamoto } 478e2786ca6STakashi Sakamoto } 4795cd1d3f4STakashi Sakamoto 4803c96101fSTakashi Sakamoto int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw, 4813c96101fSTakashi Sakamoto enum avc_general_plug_dir dir, 4823c96101fSTakashi Sakamoto struct snd_oxfw_stream_formation *formation) 4833c96101fSTakashi Sakamoto { 4843c96101fSTakashi Sakamoto u8 *format; 4853c96101fSTakashi Sakamoto unsigned int len; 4863c96101fSTakashi Sakamoto int err; 4873c96101fSTakashi Sakamoto 4883c96101fSTakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 4893c96101fSTakashi Sakamoto format = kmalloc(len, GFP_KERNEL); 4903c96101fSTakashi Sakamoto if (format == NULL) 4913c96101fSTakashi Sakamoto return -ENOMEM; 4923c96101fSTakashi Sakamoto 4933c96101fSTakashi Sakamoto err = avc_stream_get_format_single(oxfw->unit, dir, 0, format, &len); 4943c96101fSTakashi Sakamoto if (err < 0) 4953c96101fSTakashi Sakamoto goto end; 4963c96101fSTakashi Sakamoto if (len < 3) { 4973c96101fSTakashi Sakamoto err = -EIO; 4983c96101fSTakashi Sakamoto goto end; 4993c96101fSTakashi Sakamoto } 5003c96101fSTakashi Sakamoto 5013c96101fSTakashi Sakamoto err = snd_oxfw_stream_parse_format(format, formation); 5023c96101fSTakashi Sakamoto end: 5033c96101fSTakashi Sakamoto kfree(format); 5043c96101fSTakashi Sakamoto return err; 5053c96101fSTakashi Sakamoto } 5063c96101fSTakashi Sakamoto 5075cd1d3f4STakashi Sakamoto /* 5085cd1d3f4STakashi Sakamoto * See Table 6.16 - AM824 Stream Format 5095cd1d3f4STakashi Sakamoto * Figure 6.19 - format_information field for AM824 Compound 5105cd1d3f4STakashi Sakamoto * in AV/C Stream Format Information Specification 1.1 (Apr 2005, 1394TA) 5115cd1d3f4STakashi Sakamoto * Also 'Clause 12 AM824 sequence adaption layers' in IEC 61883-6:2005 5125cd1d3f4STakashi Sakamoto */ 5135cd1d3f4STakashi Sakamoto int snd_oxfw_stream_parse_format(u8 *format, 5145cd1d3f4STakashi Sakamoto struct snd_oxfw_stream_formation *formation) 5155cd1d3f4STakashi Sakamoto { 5165cd1d3f4STakashi Sakamoto unsigned int i, e, channels, type; 5175cd1d3f4STakashi Sakamoto 5185cd1d3f4STakashi Sakamoto memset(formation, 0, sizeof(struct snd_oxfw_stream_formation)); 5195cd1d3f4STakashi Sakamoto 5205cd1d3f4STakashi Sakamoto /* 5215cd1d3f4STakashi Sakamoto * this module can support a hierarchy combination that: 5225cd1d3f4STakashi Sakamoto * Root: Audio and Music (0x90) 5235cd1d3f4STakashi Sakamoto * Level 1: AM824 Compound (0x40) 5245cd1d3f4STakashi Sakamoto */ 5255cd1d3f4STakashi Sakamoto if ((format[0] != 0x90) || (format[1] != 0x40)) 52603be63b2STakashi Sakamoto return -ENXIO; 5275cd1d3f4STakashi Sakamoto 5285cd1d3f4STakashi Sakamoto /* check the sampling rate */ 5295cd1d3f4STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(avc_stream_rate_table); i++) { 5305cd1d3f4STakashi Sakamoto if (format[2] == avc_stream_rate_table[i]) 5315cd1d3f4STakashi Sakamoto break; 5325cd1d3f4STakashi Sakamoto } 5335cd1d3f4STakashi Sakamoto if (i == ARRAY_SIZE(avc_stream_rate_table)) 53403be63b2STakashi Sakamoto return -ENXIO; 5355cd1d3f4STakashi Sakamoto 5365cd1d3f4STakashi Sakamoto formation->rate = oxfw_rate_table[i]; 5375cd1d3f4STakashi Sakamoto 5385cd1d3f4STakashi Sakamoto for (e = 0; e < format[4]; e++) { 5395cd1d3f4STakashi Sakamoto channels = format[5 + e * 2]; 5405cd1d3f4STakashi Sakamoto type = format[6 + e * 2]; 5415cd1d3f4STakashi Sakamoto 5425cd1d3f4STakashi Sakamoto switch (type) { 5435cd1d3f4STakashi Sakamoto /* IEC 60958 Conformant, currently handled as MBLA */ 5445cd1d3f4STakashi Sakamoto case 0x00: 5455cd1d3f4STakashi Sakamoto /* Multi Bit Linear Audio (Raw) */ 5465cd1d3f4STakashi Sakamoto case 0x06: 5475cd1d3f4STakashi Sakamoto formation->pcm += channels; 5485cd1d3f4STakashi Sakamoto break; 5495cd1d3f4STakashi Sakamoto /* MIDI Conformant */ 5505cd1d3f4STakashi Sakamoto case 0x0d: 5515cd1d3f4STakashi Sakamoto formation->midi = channels; 5525cd1d3f4STakashi Sakamoto break; 5535cd1d3f4STakashi Sakamoto /* IEC 61937-3 to 7 */ 5545cd1d3f4STakashi Sakamoto case 0x01: 5555cd1d3f4STakashi Sakamoto case 0x02: 5565cd1d3f4STakashi Sakamoto case 0x03: 5575cd1d3f4STakashi Sakamoto case 0x04: 5585cd1d3f4STakashi Sakamoto case 0x05: 5595cd1d3f4STakashi Sakamoto /* Multi Bit Linear Audio */ 5605cd1d3f4STakashi Sakamoto case 0x07: /* DVD-Audio */ 5615cd1d3f4STakashi Sakamoto case 0x0c: /* High Precision */ 5625cd1d3f4STakashi Sakamoto /* One Bit Audio */ 5635cd1d3f4STakashi Sakamoto case 0x08: /* (Plain) Raw */ 5645cd1d3f4STakashi Sakamoto case 0x09: /* (Plain) SACD */ 5655cd1d3f4STakashi Sakamoto case 0x0a: /* (Encoded) Raw */ 5665cd1d3f4STakashi Sakamoto case 0x0b: /* (Encoded) SACD */ 5675cd1d3f4STakashi Sakamoto /* SMPTE Time-Code conformant */ 5685cd1d3f4STakashi Sakamoto case 0x0e: 5695cd1d3f4STakashi Sakamoto /* Sample Count */ 5705cd1d3f4STakashi Sakamoto case 0x0f: 5715cd1d3f4STakashi Sakamoto /* Anciliary Data */ 5725cd1d3f4STakashi Sakamoto case 0x10: 5735cd1d3f4STakashi Sakamoto /* Synchronization Stream (Stereo Raw audio) */ 5745cd1d3f4STakashi Sakamoto case 0x40: 5755cd1d3f4STakashi Sakamoto /* Don't care */ 5765cd1d3f4STakashi Sakamoto case 0xff: 5775cd1d3f4STakashi Sakamoto default: 57803be63b2STakashi Sakamoto return -ENXIO; /* not supported */ 5795cd1d3f4STakashi Sakamoto } 5805cd1d3f4STakashi Sakamoto } 5815cd1d3f4STakashi Sakamoto 58249c7b3fcSTakashi Sakamoto if (formation->pcm > AM824_MAX_CHANNELS_FOR_PCM || 58349c7b3fcSTakashi Sakamoto formation->midi > AM824_MAX_CHANNELS_FOR_MIDI) 58403be63b2STakashi Sakamoto return -ENXIO; 5855cd1d3f4STakashi Sakamoto 5865cd1d3f4STakashi Sakamoto return 0; 5875cd1d3f4STakashi Sakamoto } 5885cd1d3f4STakashi Sakamoto 5895cd1d3f4STakashi Sakamoto static int 5905cd1d3f4STakashi Sakamoto assume_stream_formats(struct snd_oxfw *oxfw, enum avc_general_plug_dir dir, 5915cd1d3f4STakashi Sakamoto unsigned int pid, u8 *buf, unsigned int *len, 5925cd1d3f4STakashi Sakamoto u8 **formats) 5935cd1d3f4STakashi Sakamoto { 5945cd1d3f4STakashi Sakamoto struct snd_oxfw_stream_formation formation; 5955cd1d3f4STakashi Sakamoto unsigned int i, eid; 5965cd1d3f4STakashi Sakamoto int err; 5975cd1d3f4STakashi Sakamoto 5985cd1d3f4STakashi Sakamoto /* get format at current sampling rate */ 5995cd1d3f4STakashi Sakamoto err = avc_stream_get_format_single(oxfw->unit, dir, pid, buf, len); 6005cd1d3f4STakashi Sakamoto if (err < 0) { 6015cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 6025cd1d3f4STakashi Sakamoto "fail to get current stream format for isoc %s plug %d:%d\n", 6035cd1d3f4STakashi Sakamoto (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : "out", 6045cd1d3f4STakashi Sakamoto pid, err); 6055cd1d3f4STakashi Sakamoto goto end; 6065cd1d3f4STakashi Sakamoto } 6075cd1d3f4STakashi Sakamoto 6085cd1d3f4STakashi Sakamoto /* parse and set stream format */ 6095cd1d3f4STakashi Sakamoto eid = 0; 6105cd1d3f4STakashi Sakamoto err = snd_oxfw_stream_parse_format(buf, &formation); 6115cd1d3f4STakashi Sakamoto if (err < 0) 6125cd1d3f4STakashi Sakamoto goto end; 6135cd1d3f4STakashi Sakamoto 614cd3b7116STakashi Sakamoto formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, *len, 615cd3b7116STakashi Sakamoto GFP_KERNEL); 616cd3b7116STakashi Sakamoto if (!formats[eid]) { 6175cd1d3f4STakashi Sakamoto err = -ENOMEM; 6185cd1d3f4STakashi Sakamoto goto end; 6195cd1d3f4STakashi Sakamoto } 6205cd1d3f4STakashi Sakamoto 6215cd1d3f4STakashi Sakamoto /* apply the format for each available sampling rate */ 6225cd1d3f4STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(oxfw_rate_table); i++) { 6235cd1d3f4STakashi Sakamoto if (formation.rate == oxfw_rate_table[i]) 6245cd1d3f4STakashi Sakamoto continue; 6255cd1d3f4STakashi Sakamoto 6265cd1d3f4STakashi Sakamoto err = avc_general_inquiry_sig_fmt(oxfw->unit, 6275cd1d3f4STakashi Sakamoto oxfw_rate_table[i], 6285cd1d3f4STakashi Sakamoto dir, pid); 6295cd1d3f4STakashi Sakamoto if (err < 0) 6305cd1d3f4STakashi Sakamoto continue; 6315cd1d3f4STakashi Sakamoto 6325cd1d3f4STakashi Sakamoto eid++; 633cd3b7116STakashi Sakamoto formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, *len, 634cd3b7116STakashi Sakamoto GFP_KERNEL); 6355cd1d3f4STakashi Sakamoto if (formats[eid] == NULL) { 6365cd1d3f4STakashi Sakamoto err = -ENOMEM; 6375cd1d3f4STakashi Sakamoto goto end; 6385cd1d3f4STakashi Sakamoto } 6395cd1d3f4STakashi Sakamoto formats[eid][2] = avc_stream_rate_table[i]; 6405cd1d3f4STakashi Sakamoto } 6415cd1d3f4STakashi Sakamoto 6425cd1d3f4STakashi Sakamoto err = 0; 6435cd1d3f4STakashi Sakamoto oxfw->assumed = true; 6445cd1d3f4STakashi Sakamoto end: 6455cd1d3f4STakashi Sakamoto return err; 6465cd1d3f4STakashi Sakamoto } 6475cd1d3f4STakashi Sakamoto 6485cd1d3f4STakashi Sakamoto static int fill_stream_formats(struct snd_oxfw *oxfw, 6495cd1d3f4STakashi Sakamoto enum avc_general_plug_dir dir, 6505cd1d3f4STakashi Sakamoto unsigned short pid) 6515cd1d3f4STakashi Sakamoto { 6525cd1d3f4STakashi Sakamoto u8 *buf, **formats; 6535cd1d3f4STakashi Sakamoto unsigned int len, eid = 0; 6545cd1d3f4STakashi Sakamoto struct snd_oxfw_stream_formation dummy; 6555cd1d3f4STakashi Sakamoto int err; 6565cd1d3f4STakashi Sakamoto 6575cd1d3f4STakashi Sakamoto buf = kmalloc(AVC_GENERIC_FRAME_MAXIMUM_BYTES, GFP_KERNEL); 6585cd1d3f4STakashi Sakamoto if (buf == NULL) 6595cd1d3f4STakashi Sakamoto return -ENOMEM; 6605cd1d3f4STakashi Sakamoto 661b0ac0009STakashi Sakamoto if (dir == AVC_GENERAL_PLUG_DIR_OUT) 662b0ac0009STakashi Sakamoto formats = oxfw->tx_stream_formats; 663b0ac0009STakashi Sakamoto else 6645cd1d3f4STakashi Sakamoto formats = oxfw->rx_stream_formats; 6655cd1d3f4STakashi Sakamoto 6665cd1d3f4STakashi Sakamoto /* get first entry */ 6675cd1d3f4STakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 6685cd1d3f4STakashi Sakamoto err = avc_stream_get_format_list(oxfw->unit, dir, 0, buf, &len, 0); 66903be63b2STakashi Sakamoto if (err == -ENXIO) { 6705cd1d3f4STakashi Sakamoto /* LIST subfunction is not implemented */ 6715cd1d3f4STakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 6725cd1d3f4STakashi Sakamoto err = assume_stream_formats(oxfw, dir, pid, buf, &len, 6735cd1d3f4STakashi Sakamoto formats); 6745cd1d3f4STakashi Sakamoto goto end; 6755cd1d3f4STakashi Sakamoto } else if (err < 0) { 6765cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 6775cd1d3f4STakashi Sakamoto "fail to get stream format %d for isoc %s plug %d:%d\n", 6785cd1d3f4STakashi Sakamoto eid, (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : "out", 6795cd1d3f4STakashi Sakamoto pid, err); 6805cd1d3f4STakashi Sakamoto goto end; 6815cd1d3f4STakashi Sakamoto } 6825cd1d3f4STakashi Sakamoto 6835cd1d3f4STakashi Sakamoto /* LIST subfunction is implemented */ 6845cd1d3f4STakashi Sakamoto while (eid < SND_OXFW_STREAM_FORMAT_ENTRIES) { 6855cd1d3f4STakashi Sakamoto /* The format is too short. */ 6865cd1d3f4STakashi Sakamoto if (len < 3) { 6875cd1d3f4STakashi Sakamoto err = -EIO; 6885cd1d3f4STakashi Sakamoto break; 6895cd1d3f4STakashi Sakamoto } 6905cd1d3f4STakashi Sakamoto 6915cd1d3f4STakashi Sakamoto /* parse and set stream format */ 6925cd1d3f4STakashi Sakamoto err = snd_oxfw_stream_parse_format(buf, &dummy); 6935cd1d3f4STakashi Sakamoto if (err < 0) 6945cd1d3f4STakashi Sakamoto break; 6955cd1d3f4STakashi Sakamoto 696cd3b7116STakashi Sakamoto formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, len, 697cd3b7116STakashi Sakamoto GFP_KERNEL); 698cd3b7116STakashi Sakamoto if (!formats[eid]) { 6995cd1d3f4STakashi Sakamoto err = -ENOMEM; 7005cd1d3f4STakashi Sakamoto break; 7015cd1d3f4STakashi Sakamoto } 7025cd1d3f4STakashi Sakamoto 7035cd1d3f4STakashi Sakamoto /* get next entry */ 7045cd1d3f4STakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 7055cd1d3f4STakashi Sakamoto err = avc_stream_get_format_list(oxfw->unit, dir, 0, 7065cd1d3f4STakashi Sakamoto buf, &len, ++eid); 7075cd1d3f4STakashi Sakamoto /* No entries remained. */ 7085cd1d3f4STakashi Sakamoto if (err == -EINVAL) { 7095cd1d3f4STakashi Sakamoto err = 0; 7105cd1d3f4STakashi Sakamoto break; 7115cd1d3f4STakashi Sakamoto } else if (err < 0) { 7125cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 7135cd1d3f4STakashi Sakamoto "fail to get stream format %d for isoc %s plug %d:%d\n", 7145cd1d3f4STakashi Sakamoto eid, (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : 7155cd1d3f4STakashi Sakamoto "out", 7165cd1d3f4STakashi Sakamoto pid, err); 7175cd1d3f4STakashi Sakamoto break; 7185cd1d3f4STakashi Sakamoto } 7195cd1d3f4STakashi Sakamoto } 7205cd1d3f4STakashi Sakamoto end: 7215cd1d3f4STakashi Sakamoto kfree(buf); 7225cd1d3f4STakashi Sakamoto return err; 7235cd1d3f4STakashi Sakamoto } 7245cd1d3f4STakashi Sakamoto 7255cd1d3f4STakashi Sakamoto int snd_oxfw_stream_discover(struct snd_oxfw *oxfw) 7265cd1d3f4STakashi Sakamoto { 7275cd1d3f4STakashi Sakamoto u8 plugs[AVC_PLUG_INFO_BUF_BYTES]; 72832056041STakashi Sakamoto struct snd_oxfw_stream_formation formation; 72932056041STakashi Sakamoto u8 *format; 73032056041STakashi Sakamoto unsigned int i; 7315cd1d3f4STakashi Sakamoto int err; 7325cd1d3f4STakashi Sakamoto 7335cd1d3f4STakashi Sakamoto /* the number of plugs for isoc in/out, ext in/out */ 7345cd1d3f4STakashi Sakamoto err = avc_general_get_plug_info(oxfw->unit, 0x1f, 0x07, 0x00, plugs); 7355cd1d3f4STakashi Sakamoto if (err < 0) { 7365cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 7375cd1d3f4STakashi Sakamoto "fail to get info for isoc/external in/out plugs: %d\n", 7385cd1d3f4STakashi Sakamoto err); 7395cd1d3f4STakashi Sakamoto goto end; 740b0ac0009STakashi Sakamoto } else if ((plugs[0] == 0) && (plugs[1] == 0)) { 74103be63b2STakashi Sakamoto err = -ENXIO; 7425cd1d3f4STakashi Sakamoto goto end; 7435cd1d3f4STakashi Sakamoto } 7445cd1d3f4STakashi Sakamoto 745b0ac0009STakashi Sakamoto /* use oPCR[0] if exists */ 746b0ac0009STakashi Sakamoto if (plugs[1] > 0) { 747b0ac0009STakashi Sakamoto err = fill_stream_formats(oxfw, AVC_GENERAL_PLUG_DIR_OUT, 0); 74841dbc792STakashi Sakamoto if (err < 0) { 74941dbc792STakashi Sakamoto if (err != -ENXIO) 75041dbc792STakashi Sakamoto return err; 75132056041STakashi Sakamoto 75241dbc792STakashi Sakamoto // The oPCR is not available for isoc communication. 75341dbc792STakashi Sakamoto err = 0; 75441dbc792STakashi Sakamoto } else { 75532056041STakashi Sakamoto for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 75632056041STakashi Sakamoto format = oxfw->tx_stream_formats[i]; 75732056041STakashi Sakamoto if (format == NULL) 75832056041STakashi Sakamoto continue; 75941dbc792STakashi Sakamoto err = snd_oxfw_stream_parse_format(format, 76041dbc792STakashi Sakamoto &formation); 76132056041STakashi Sakamoto if (err < 0) 76232056041STakashi Sakamoto continue; 76332056041STakashi Sakamoto 76432056041STakashi Sakamoto /* Add one MIDI port. */ 76532056041STakashi Sakamoto if (formation.midi > 0) 76632056041STakashi Sakamoto oxfw->midi_input_ports = 1; 76732056041STakashi Sakamoto } 76832056041STakashi Sakamoto 769b0ac0009STakashi Sakamoto oxfw->has_output = true; 770b0ac0009STakashi Sakamoto } 77141dbc792STakashi Sakamoto } 772b0ac0009STakashi Sakamoto 7735cd1d3f4STakashi Sakamoto /* use iPCR[0] if exists */ 77432056041STakashi Sakamoto if (plugs[0] > 0) { 7755cd1d3f4STakashi Sakamoto err = fill_stream_formats(oxfw, AVC_GENERAL_PLUG_DIR_IN, 0); 77641dbc792STakashi Sakamoto if (err < 0) { 77741dbc792STakashi Sakamoto if (err != -ENXIO) 77841dbc792STakashi Sakamoto return err; 77932056041STakashi Sakamoto 78041dbc792STakashi Sakamoto // The iPCR is not available for isoc communication. 78141dbc792STakashi Sakamoto err = 0; 78241dbc792STakashi Sakamoto } else { 78332056041STakashi Sakamoto for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 78432056041STakashi Sakamoto format = oxfw->rx_stream_formats[i]; 78532056041STakashi Sakamoto if (format == NULL) 78632056041STakashi Sakamoto continue; 78741dbc792STakashi Sakamoto err = snd_oxfw_stream_parse_format(format, 78841dbc792STakashi Sakamoto &formation); 78932056041STakashi Sakamoto if (err < 0) 79032056041STakashi Sakamoto continue; 79132056041STakashi Sakamoto 79232056041STakashi Sakamoto /* Add one MIDI port. */ 79332056041STakashi Sakamoto if (formation.midi > 0) 79432056041STakashi Sakamoto oxfw->midi_output_ports = 1; 79532056041STakashi Sakamoto } 79606a42a74STakashi Sakamoto 79706a42a74STakashi Sakamoto oxfw->has_input = true; 79832056041STakashi Sakamoto } 79941dbc792STakashi Sakamoto } 8005cd1d3f4STakashi Sakamoto end: 8015cd1d3f4STakashi Sakamoto return err; 8025cd1d3f4STakashi Sakamoto } 8038985f4acSTakashi Sakamoto 8048985f4acSTakashi Sakamoto void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw) 8058985f4acSTakashi Sakamoto { 8068985f4acSTakashi Sakamoto oxfw->dev_lock_changed = true; 8078985f4acSTakashi Sakamoto wake_up(&oxfw->hwdep_wait); 8088985f4acSTakashi Sakamoto } 8098985f4acSTakashi Sakamoto 8108985f4acSTakashi Sakamoto int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw) 8118985f4acSTakashi Sakamoto { 8128985f4acSTakashi Sakamoto int err; 8138985f4acSTakashi Sakamoto 8148985f4acSTakashi Sakamoto spin_lock_irq(&oxfw->lock); 8158985f4acSTakashi Sakamoto 8168985f4acSTakashi Sakamoto /* user land lock this */ 8178985f4acSTakashi Sakamoto if (oxfw->dev_lock_count < 0) { 8188985f4acSTakashi Sakamoto err = -EBUSY; 8198985f4acSTakashi Sakamoto goto end; 8208985f4acSTakashi Sakamoto } 8218985f4acSTakashi Sakamoto 8228985f4acSTakashi Sakamoto /* this is the first time */ 8238985f4acSTakashi Sakamoto if (oxfw->dev_lock_count++ == 0) 8248985f4acSTakashi Sakamoto snd_oxfw_stream_lock_changed(oxfw); 8258985f4acSTakashi Sakamoto err = 0; 8268985f4acSTakashi Sakamoto end: 8278985f4acSTakashi Sakamoto spin_unlock_irq(&oxfw->lock); 8288985f4acSTakashi Sakamoto return err; 8298985f4acSTakashi Sakamoto } 8308985f4acSTakashi Sakamoto 8318985f4acSTakashi Sakamoto void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw) 8328985f4acSTakashi Sakamoto { 8338985f4acSTakashi Sakamoto spin_lock_irq(&oxfw->lock); 8348985f4acSTakashi Sakamoto 8358985f4acSTakashi Sakamoto if (WARN_ON(oxfw->dev_lock_count <= 0)) 8368985f4acSTakashi Sakamoto goto end; 8378985f4acSTakashi Sakamoto if (--oxfw->dev_lock_count == 0) 8388985f4acSTakashi Sakamoto snd_oxfw_stream_lock_changed(oxfw); 8398985f4acSTakashi Sakamoto end: 8408985f4acSTakashi Sakamoto spin_unlock_irq(&oxfw->lock); 8418985f4acSTakashi Sakamoto } 842