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 12f3699e2cSTakashi Sakamoto #define CALLBACK_TIMEOUT 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; 156a092f000STakashi Sakamoto unsigned int flags = CIP_NONBLOCKING; 157b0ac0009STakashi Sakamoto int err; 158b0ac0009STakashi Sakamoto 159b0ac0009STakashi Sakamoto if (stream == &oxfw->tx_stream) { 160b0ac0009STakashi Sakamoto conn = &oxfw->out_conn; 161b0ac0009STakashi Sakamoto c_dir = CMP_OUTPUT; 162b0ac0009STakashi Sakamoto s_dir = AMDTP_IN_STREAM; 163a092f000STakashi Sakamoto 164a092f000STakashi Sakamoto if (oxfw->quirks & SND_OXFW_QUIRK_JUMBO_PAYLOAD) 165a092f000STakashi Sakamoto flags |= CIP_JUMBO_PAYLOAD; 166*a6f91693STakashi Sakamoto if (oxfw->quirks & SND_OXFW_QUIRK_WRONG_DBS) 167a092f000STakashi Sakamoto flags |= CIP_WRONG_DBS; 168b0ac0009STakashi Sakamoto } else { 169b0ac0009STakashi Sakamoto conn = &oxfw->in_conn; 170b0ac0009STakashi Sakamoto c_dir = CMP_INPUT; 171b0ac0009STakashi Sakamoto s_dir = AMDTP_OUT_STREAM; 172b0ac0009STakashi Sakamoto } 173b0ac0009STakashi Sakamoto 174b0ac0009STakashi Sakamoto err = cmp_connection_init(conn, oxfw->unit, c_dir, 0); 175b0ac0009STakashi Sakamoto if (err < 0) 176779f0dbaSTakashi Sakamoto return err; 177b0ac0009STakashi Sakamoto 178a092f000STakashi Sakamoto err = amdtp_am824_init(stream, oxfw->unit, s_dir, flags); 179b0ac0009STakashi Sakamoto if (err < 0) { 180b0ac0009STakashi Sakamoto cmp_connection_destroy(conn); 181779f0dbaSTakashi Sakamoto return err; 182b0ac0009STakashi Sakamoto } 183b0ac0009STakashi Sakamoto 184779f0dbaSTakashi Sakamoto return 0; 185b0ac0009STakashi Sakamoto } 186b0ac0009STakashi Sakamoto 1870356ce3aSTakashi Sakamoto static int keep_resources(struct snd_oxfw *oxfw, struct amdtp_stream *stream) 1880356ce3aSTakashi Sakamoto { 1890356ce3aSTakashi Sakamoto enum avc_general_plug_dir dir; 1900356ce3aSTakashi Sakamoto u8 **formats; 1910356ce3aSTakashi Sakamoto struct snd_oxfw_stream_formation formation; 1927bc93821STakashi Sakamoto struct cmp_connection *conn; 1930356ce3aSTakashi Sakamoto int i; 1940356ce3aSTakashi Sakamoto int err; 1950356ce3aSTakashi Sakamoto 1960356ce3aSTakashi Sakamoto if (stream == &oxfw->rx_stream) { 1970356ce3aSTakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_IN; 1980356ce3aSTakashi Sakamoto formats = oxfw->rx_stream_formats; 1997bc93821STakashi Sakamoto conn = &oxfw->in_conn; 2000356ce3aSTakashi Sakamoto } else { 2010356ce3aSTakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_OUT; 2020356ce3aSTakashi Sakamoto formats = oxfw->tx_stream_formats; 2037bc93821STakashi Sakamoto conn = &oxfw->out_conn; 2040356ce3aSTakashi Sakamoto } 2050356ce3aSTakashi Sakamoto 2060356ce3aSTakashi Sakamoto err = snd_oxfw_stream_get_current_formation(oxfw, dir, &formation); 2070356ce3aSTakashi Sakamoto if (err < 0) 2080356ce3aSTakashi Sakamoto return err; 2090356ce3aSTakashi Sakamoto 2100356ce3aSTakashi Sakamoto for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 2110356ce3aSTakashi Sakamoto struct snd_oxfw_stream_formation fmt; 2120356ce3aSTakashi Sakamoto 2130356ce3aSTakashi Sakamoto if (formats[i] == NULL) 2140356ce3aSTakashi Sakamoto break; 2150356ce3aSTakashi Sakamoto 2160356ce3aSTakashi Sakamoto err = snd_oxfw_stream_parse_format(formats[i], &fmt); 2170356ce3aSTakashi Sakamoto if (err < 0) 2180356ce3aSTakashi Sakamoto return err; 2190356ce3aSTakashi Sakamoto 2200356ce3aSTakashi Sakamoto if (fmt.rate == formation.rate && fmt.pcm == formation.pcm && 2210356ce3aSTakashi Sakamoto fmt.midi == formation.midi) 2220356ce3aSTakashi Sakamoto break; 2230356ce3aSTakashi Sakamoto } 2240356ce3aSTakashi Sakamoto if (i == SND_OXFW_STREAM_FORMAT_ENTRIES) 2250356ce3aSTakashi Sakamoto return -EINVAL; 2260356ce3aSTakashi Sakamoto 2270356ce3aSTakashi Sakamoto // The stream should have one pcm channels at least. 2280356ce3aSTakashi Sakamoto if (formation.pcm == 0) 2290356ce3aSTakashi Sakamoto return -EINVAL; 2300356ce3aSTakashi Sakamoto 2317bc93821STakashi Sakamoto err = amdtp_am824_set_parameters(stream, formation.rate, formation.pcm, 2320356ce3aSTakashi Sakamoto formation.midi * 8, false); 2337bc93821STakashi Sakamoto if (err < 0) 2347bc93821STakashi Sakamoto return err; 2357bc93821STakashi Sakamoto 2367bc93821STakashi Sakamoto return cmp_connection_reserve(conn, amdtp_stream_get_max_payload(stream)); 2370356ce3aSTakashi Sakamoto } 2380356ce3aSTakashi Sakamoto 2394f380d00STakashi Sakamoto int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw, 240b0ac0009STakashi Sakamoto struct amdtp_stream *stream, 2411d6a722cSTakashi Sakamoto unsigned int rate, unsigned int pcm_channels, 2423299d2a0STakashi Sakamoto unsigned int frames_per_period, 2433299d2a0STakashi Sakamoto unsigned int frames_per_buffer) 244b0ac0009STakashi Sakamoto { 245f3699e2cSTakashi Sakamoto struct snd_oxfw_stream_formation formation; 246b0ac0009STakashi Sakamoto enum avc_general_plug_dir dir; 2474f380d00STakashi Sakamoto int err; 248e2786ca6STakashi Sakamoto 24920358d44STakashi Sakamoto // Considering JACK/FFADO streaming: 25020358d44STakashi Sakamoto // TODO: This can be removed hwdep functionality becomes popular. 25120358d44STakashi Sakamoto err = check_connection_used_by_others(oxfw, &oxfw->rx_stream); 25220358d44STakashi Sakamoto if (err < 0) 25320358d44STakashi Sakamoto return err; 25420358d44STakashi Sakamoto if (oxfw->has_output) { 25520358d44STakashi Sakamoto err = check_connection_used_by_others(oxfw, &oxfw->tx_stream); 25620358d44STakashi Sakamoto if (err < 0) 25720358d44STakashi Sakamoto return err; 258b0ac0009STakashi Sakamoto } 259b0ac0009STakashi Sakamoto 26020358d44STakashi Sakamoto if (stream == &oxfw->tx_stream) 26120358d44STakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_OUT; 26220358d44STakashi Sakamoto else 26320358d44STakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_IN; 264b0ac0009STakashi Sakamoto 265b0ac0009STakashi Sakamoto err = snd_oxfw_stream_get_current_formation(oxfw, dir, &formation); 266e2786ca6STakashi Sakamoto if (err < 0) 26720358d44STakashi Sakamoto return err; 2684f380d00STakashi Sakamoto if (rate == 0) { 26905588d34STakashi Sakamoto rate = formation.rate; 27005588d34STakashi Sakamoto pcm_channels = formation.pcm; 2714f380d00STakashi Sakamoto } 2724f380d00STakashi Sakamoto if (formation.rate != rate || formation.pcm != pcm_channels) { 273ac5d7786STakashi Sakamoto amdtp_domain_stop(&oxfw->domain); 274ac5d7786STakashi Sakamoto 275e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 2763f2ce83dSTakashi Sakamoto cmp_connection_release(&oxfw->in_conn); 277e34244ddSTakashi Sakamoto 278e34244ddSTakashi Sakamoto if (oxfw->has_output) { 279e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 2803f2ce83dSTakashi Sakamoto cmp_connection_release(&oxfw->out_conn); 281e34244ddSTakashi Sakamoto } 2824f380d00STakashi Sakamoto } 283f3699e2cSTakashi Sakamoto 2844f380d00STakashi Sakamoto if (oxfw->substreams_count == 0 || 2854f380d00STakashi Sakamoto formation.rate != rate || formation.pcm != pcm_channels) { 286b0ac0009STakashi Sakamoto err = set_stream_format(oxfw, stream, rate, pcm_channels); 287f3699e2cSTakashi Sakamoto if (err < 0) { 288f3699e2cSTakashi Sakamoto dev_err(&oxfw->unit->device, 289f3699e2cSTakashi Sakamoto "fail to set stream format: %d\n", err); 29020358d44STakashi Sakamoto return err; 29120358d44STakashi Sakamoto } 2920356ce3aSTakashi Sakamoto 2930356ce3aSTakashi Sakamoto err = keep_resources(oxfw, &oxfw->rx_stream); 2940356ce3aSTakashi Sakamoto if (err < 0) 2950356ce3aSTakashi Sakamoto return err; 2960356ce3aSTakashi Sakamoto 2970356ce3aSTakashi Sakamoto if (oxfw->has_output) { 2980356ce3aSTakashi Sakamoto err = keep_resources(oxfw, &oxfw->tx_stream); 2997bc93821STakashi Sakamoto if (err < 0) { 3007bc93821STakashi Sakamoto cmp_connection_release(&oxfw->in_conn); 3010356ce3aSTakashi Sakamoto return err; 3020356ce3aSTakashi Sakamoto } 303f3699e2cSTakashi Sakamoto } 3041d6a722cSTakashi Sakamoto 3051d6a722cSTakashi Sakamoto err = amdtp_domain_set_events_per_period(&oxfw->domain, 3063299d2a0STakashi Sakamoto frames_per_period, frames_per_buffer); 3071d6a722cSTakashi Sakamoto if (err < 0) { 3081d6a722cSTakashi Sakamoto cmp_connection_release(&oxfw->in_conn); 3091d6a722cSTakashi Sakamoto if (oxfw->has_output) 3101d6a722cSTakashi Sakamoto cmp_connection_release(&oxfw->out_conn); 3111d6a722cSTakashi Sakamoto return err; 3121d6a722cSTakashi Sakamoto } 3137bc93821STakashi Sakamoto } 314b0ac0009STakashi Sakamoto 3154f380d00STakashi Sakamoto return 0; 3164f380d00STakashi Sakamoto } 3174f380d00STakashi Sakamoto 3184f380d00STakashi Sakamoto int snd_oxfw_stream_start_duplex(struct snd_oxfw *oxfw) 3194f380d00STakashi Sakamoto { 3204f380d00STakashi Sakamoto int err; 3214f380d00STakashi Sakamoto 3224f380d00STakashi Sakamoto if (oxfw->substreams_count == 0) 3234f380d00STakashi Sakamoto return -EIO; 3244f380d00STakashi Sakamoto 3254f380d00STakashi Sakamoto if (amdtp_streaming_error(&oxfw->rx_stream) || 3264f380d00STakashi Sakamoto amdtp_streaming_error(&oxfw->tx_stream)) { 327ac5d7786STakashi Sakamoto amdtp_domain_stop(&oxfw->domain); 3284f380d00STakashi Sakamoto 329ac5d7786STakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 330ac5d7786STakashi Sakamoto if (oxfw->has_output) 3314f380d00STakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 3324f380d00STakashi Sakamoto } 3334f380d00STakashi Sakamoto 33420358d44STakashi Sakamoto if (!amdtp_stream_running(&oxfw->rx_stream)) { 33520358d44STakashi Sakamoto err = start_stream(oxfw, &oxfw->rx_stream); 336b0ac0009STakashi Sakamoto if (err < 0) { 337b0ac0009STakashi Sakamoto dev_err(&oxfw->unit->device, 338ac5d7786STakashi Sakamoto "fail to prepare rx stream: %d\n", err); 339ac5d7786STakashi Sakamoto goto error; 340ac5d7786STakashi Sakamoto } 341ac5d7786STakashi Sakamoto 342ac5d7786STakashi Sakamoto if (oxfw->has_output && 343ac5d7786STakashi Sakamoto !amdtp_stream_running(&oxfw->tx_stream)) { 344ac5d7786STakashi Sakamoto err = start_stream(oxfw, &oxfw->tx_stream); 345ac5d7786STakashi Sakamoto if (err < 0) { 346ac5d7786STakashi Sakamoto dev_err(&oxfw->unit->device, 347ac5d7786STakashi Sakamoto "fail to prepare tx stream: %d\n", err); 34820358d44STakashi Sakamoto goto error; 34920358d44STakashi Sakamoto } 35020358d44STakashi Sakamoto } 35120358d44STakashi Sakamoto 352acfedcbeSTakashi Sakamoto err = amdtp_domain_start(&oxfw->domain, 0); 353ac5d7786STakashi Sakamoto if (err < 0) 354ac5d7786STakashi Sakamoto goto error; 355ac5d7786STakashi Sakamoto 356ac5d7786STakashi Sakamoto // Wait first packet. 357ac5d7786STakashi Sakamoto if (!amdtp_stream_wait_callback(&oxfw->rx_stream, 358ac5d7786STakashi Sakamoto CALLBACK_TIMEOUT)) { 359ac5d7786STakashi Sakamoto err = -ETIMEDOUT; 36020358d44STakashi Sakamoto goto error; 361b0ac0009STakashi Sakamoto } 362ac5d7786STakashi Sakamoto 3634c098dabSTakashi Sakamoto if (oxfw->has_output) { 3644c098dabSTakashi Sakamoto if (!amdtp_stream_wait_callback(&oxfw->tx_stream, 3654c098dabSTakashi Sakamoto CALLBACK_TIMEOUT)) { 3664c098dabSTakashi Sakamoto err = -ETIMEDOUT; 3674c098dabSTakashi Sakamoto goto error; 3684c098dabSTakashi Sakamoto } 3694c098dabSTakashi Sakamoto } 370f3699e2cSTakashi Sakamoto } 371f3699e2cSTakashi Sakamoto 37220358d44STakashi Sakamoto return 0; 37320358d44STakashi Sakamoto error: 374ac5d7786STakashi Sakamoto amdtp_domain_stop(&oxfw->domain); 375ac5d7786STakashi Sakamoto 37620358d44STakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 377ac5d7786STakashi Sakamoto if (oxfw->has_output) 37820358d44STakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 379ac5d7786STakashi Sakamoto 380e2786ca6STakashi Sakamoto return err; 381e2786ca6STakashi Sakamoto } 382e2786ca6STakashi Sakamoto 383779f0dbaSTakashi Sakamoto void snd_oxfw_stream_stop_duplex(struct snd_oxfw *oxfw) 384e2786ca6STakashi Sakamoto { 3854a0a0472STakashi Sakamoto if (oxfw->substreams_count == 0) { 386ac5d7786STakashi Sakamoto amdtp_domain_stop(&oxfw->domain); 387ac5d7786STakashi Sakamoto 388e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 3897bc93821STakashi Sakamoto cmp_connection_release(&oxfw->in_conn); 390b0ac0009STakashi Sakamoto 391e34244ddSTakashi Sakamoto if (oxfw->has_output) { 392e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 3937bc93821STakashi Sakamoto cmp_connection_release(&oxfw->out_conn); 394e34244ddSTakashi Sakamoto } 39520358d44STakashi Sakamoto } 396e2786ca6STakashi Sakamoto } 397e2786ca6STakashi Sakamoto 398779f0dbaSTakashi Sakamoto static void destroy_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream) 399e2786ca6STakashi Sakamoto { 400b0ac0009STakashi Sakamoto struct cmp_connection *conn; 401e2786ca6STakashi Sakamoto 402b0ac0009STakashi Sakamoto if (stream == &oxfw->tx_stream) 403b0ac0009STakashi Sakamoto conn = &oxfw->out_conn; 404e2786ca6STakashi Sakamoto else 405b0ac0009STakashi Sakamoto conn = &oxfw->in_conn; 406b0ac0009STakashi Sakamoto 407b0ac0009STakashi Sakamoto amdtp_stream_destroy(stream); 408b0ac0009STakashi Sakamoto cmp_connection_destroy(conn); 409b0ac0009STakashi Sakamoto } 410b0ac0009STakashi Sakamoto 411779f0dbaSTakashi Sakamoto int snd_oxfw_stream_init_duplex(struct snd_oxfw *oxfw) 412779f0dbaSTakashi Sakamoto { 413779f0dbaSTakashi Sakamoto int err; 414779f0dbaSTakashi Sakamoto 415779f0dbaSTakashi Sakamoto err = init_stream(oxfw, &oxfw->rx_stream); 416779f0dbaSTakashi Sakamoto if (err < 0) 417779f0dbaSTakashi Sakamoto return err; 418779f0dbaSTakashi Sakamoto 419779f0dbaSTakashi Sakamoto if (oxfw->has_output) { 420779f0dbaSTakashi Sakamoto err = init_stream(oxfw, &oxfw->tx_stream); 421779f0dbaSTakashi Sakamoto if (err < 0) { 422779f0dbaSTakashi Sakamoto destroy_stream(oxfw, &oxfw->rx_stream); 423779f0dbaSTakashi Sakamoto return err; 424779f0dbaSTakashi Sakamoto } 425779f0dbaSTakashi Sakamoto } 426779f0dbaSTakashi Sakamoto 427ac5d7786STakashi Sakamoto err = amdtp_domain_init(&oxfw->domain); 428ac5d7786STakashi Sakamoto if (err < 0) { 429ac5d7786STakashi Sakamoto destroy_stream(oxfw, &oxfw->rx_stream); 430ac5d7786STakashi Sakamoto if (oxfw->has_output) 431ac5d7786STakashi Sakamoto destroy_stream(oxfw, &oxfw->tx_stream); 432ac5d7786STakashi Sakamoto } 433ac5d7786STakashi Sakamoto 434ac5d7786STakashi Sakamoto return err; 435779f0dbaSTakashi Sakamoto } 436779f0dbaSTakashi Sakamoto 437779f0dbaSTakashi Sakamoto // This function should be called before starting the stream or after stopping 438779f0dbaSTakashi Sakamoto // the streams. 439779f0dbaSTakashi Sakamoto void snd_oxfw_stream_destroy_duplex(struct snd_oxfw *oxfw) 440779f0dbaSTakashi Sakamoto { 441ac5d7786STakashi Sakamoto amdtp_domain_destroy(&oxfw->domain); 442ac5d7786STakashi Sakamoto 443779f0dbaSTakashi Sakamoto destroy_stream(oxfw, &oxfw->rx_stream); 444779f0dbaSTakashi Sakamoto 445779f0dbaSTakashi Sakamoto if (oxfw->has_output) 446779f0dbaSTakashi Sakamoto destroy_stream(oxfw, &oxfw->tx_stream); 447779f0dbaSTakashi Sakamoto } 448779f0dbaSTakashi Sakamoto 449779f0dbaSTakashi Sakamoto void snd_oxfw_stream_update_duplex(struct snd_oxfw *oxfw) 450b0ac0009STakashi Sakamoto { 451ac5d7786STakashi Sakamoto amdtp_domain_stop(&oxfw->domain); 452ac5d7786STakashi Sakamoto 453e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 454b0ac0009STakashi Sakamoto 455e34244ddSTakashi Sakamoto amdtp_stream_pcm_abort(&oxfw->rx_stream); 456e34244ddSTakashi Sakamoto 457e34244ddSTakashi Sakamoto if (oxfw->has_output) { 458e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 459e34244ddSTakashi Sakamoto 460e34244ddSTakashi Sakamoto amdtp_stream_pcm_abort(&oxfw->tx_stream); 461e34244ddSTakashi Sakamoto } 462e2786ca6STakashi Sakamoto } 4635cd1d3f4STakashi Sakamoto 4643c96101fSTakashi Sakamoto int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw, 4653c96101fSTakashi Sakamoto enum avc_general_plug_dir dir, 4663c96101fSTakashi Sakamoto struct snd_oxfw_stream_formation *formation) 4673c96101fSTakashi Sakamoto { 4683c96101fSTakashi Sakamoto u8 *format; 4693c96101fSTakashi Sakamoto unsigned int len; 4703c96101fSTakashi Sakamoto int err; 4713c96101fSTakashi Sakamoto 4723c96101fSTakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 4733c96101fSTakashi Sakamoto format = kmalloc(len, GFP_KERNEL); 4743c96101fSTakashi Sakamoto if (format == NULL) 4753c96101fSTakashi Sakamoto return -ENOMEM; 4763c96101fSTakashi Sakamoto 4773c96101fSTakashi Sakamoto err = avc_stream_get_format_single(oxfw->unit, dir, 0, format, &len); 4783c96101fSTakashi Sakamoto if (err < 0) 4793c96101fSTakashi Sakamoto goto end; 4803c96101fSTakashi Sakamoto if (len < 3) { 4813c96101fSTakashi Sakamoto err = -EIO; 4823c96101fSTakashi Sakamoto goto end; 4833c96101fSTakashi Sakamoto } 4843c96101fSTakashi Sakamoto 4853c96101fSTakashi Sakamoto err = snd_oxfw_stream_parse_format(format, formation); 4863c96101fSTakashi Sakamoto end: 4873c96101fSTakashi Sakamoto kfree(format); 4883c96101fSTakashi Sakamoto return err; 4893c96101fSTakashi Sakamoto } 4903c96101fSTakashi Sakamoto 4915cd1d3f4STakashi Sakamoto /* 4925cd1d3f4STakashi Sakamoto * See Table 6.16 - AM824 Stream Format 4935cd1d3f4STakashi Sakamoto * Figure 6.19 - format_information field for AM824 Compound 4945cd1d3f4STakashi Sakamoto * in AV/C Stream Format Information Specification 1.1 (Apr 2005, 1394TA) 4955cd1d3f4STakashi Sakamoto * Also 'Clause 12 AM824 sequence adaption layers' in IEC 61883-6:2005 4965cd1d3f4STakashi Sakamoto */ 4975cd1d3f4STakashi Sakamoto int snd_oxfw_stream_parse_format(u8 *format, 4985cd1d3f4STakashi Sakamoto struct snd_oxfw_stream_formation *formation) 4995cd1d3f4STakashi Sakamoto { 5005cd1d3f4STakashi Sakamoto unsigned int i, e, channels, type; 5015cd1d3f4STakashi Sakamoto 5025cd1d3f4STakashi Sakamoto memset(formation, 0, sizeof(struct snd_oxfw_stream_formation)); 5035cd1d3f4STakashi Sakamoto 5045cd1d3f4STakashi Sakamoto /* 5055cd1d3f4STakashi Sakamoto * this module can support a hierarchy combination that: 5065cd1d3f4STakashi Sakamoto * Root: Audio and Music (0x90) 5075cd1d3f4STakashi Sakamoto * Level 1: AM824 Compound (0x40) 5085cd1d3f4STakashi Sakamoto */ 5095cd1d3f4STakashi Sakamoto if ((format[0] != 0x90) || (format[1] != 0x40)) 51003be63b2STakashi Sakamoto return -ENXIO; 5115cd1d3f4STakashi Sakamoto 5125cd1d3f4STakashi Sakamoto /* check the sampling rate */ 5135cd1d3f4STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(avc_stream_rate_table); i++) { 5145cd1d3f4STakashi Sakamoto if (format[2] == avc_stream_rate_table[i]) 5155cd1d3f4STakashi Sakamoto break; 5165cd1d3f4STakashi Sakamoto } 5175cd1d3f4STakashi Sakamoto if (i == ARRAY_SIZE(avc_stream_rate_table)) 51803be63b2STakashi Sakamoto return -ENXIO; 5195cd1d3f4STakashi Sakamoto 5205cd1d3f4STakashi Sakamoto formation->rate = oxfw_rate_table[i]; 5215cd1d3f4STakashi Sakamoto 5225cd1d3f4STakashi Sakamoto for (e = 0; e < format[4]; e++) { 5235cd1d3f4STakashi Sakamoto channels = format[5 + e * 2]; 5245cd1d3f4STakashi Sakamoto type = format[6 + e * 2]; 5255cd1d3f4STakashi Sakamoto 5265cd1d3f4STakashi Sakamoto switch (type) { 5275cd1d3f4STakashi Sakamoto /* IEC 60958 Conformant, currently handled as MBLA */ 5285cd1d3f4STakashi Sakamoto case 0x00: 5295cd1d3f4STakashi Sakamoto /* Multi Bit Linear Audio (Raw) */ 5305cd1d3f4STakashi Sakamoto case 0x06: 5315cd1d3f4STakashi Sakamoto formation->pcm += channels; 5325cd1d3f4STakashi Sakamoto break; 5335cd1d3f4STakashi Sakamoto /* MIDI Conformant */ 5345cd1d3f4STakashi Sakamoto case 0x0d: 5355cd1d3f4STakashi Sakamoto formation->midi = channels; 5365cd1d3f4STakashi Sakamoto break; 5375cd1d3f4STakashi Sakamoto /* IEC 61937-3 to 7 */ 5385cd1d3f4STakashi Sakamoto case 0x01: 5395cd1d3f4STakashi Sakamoto case 0x02: 5405cd1d3f4STakashi Sakamoto case 0x03: 5415cd1d3f4STakashi Sakamoto case 0x04: 5425cd1d3f4STakashi Sakamoto case 0x05: 5435cd1d3f4STakashi Sakamoto /* Multi Bit Linear Audio */ 5445cd1d3f4STakashi Sakamoto case 0x07: /* DVD-Audio */ 5455cd1d3f4STakashi Sakamoto case 0x0c: /* High Precision */ 5465cd1d3f4STakashi Sakamoto /* One Bit Audio */ 5475cd1d3f4STakashi Sakamoto case 0x08: /* (Plain) Raw */ 5485cd1d3f4STakashi Sakamoto case 0x09: /* (Plain) SACD */ 5495cd1d3f4STakashi Sakamoto case 0x0a: /* (Encoded) Raw */ 5505cd1d3f4STakashi Sakamoto case 0x0b: /* (Encoded) SACD */ 5515cd1d3f4STakashi Sakamoto /* SMPTE Time-Code conformant */ 5525cd1d3f4STakashi Sakamoto case 0x0e: 5535cd1d3f4STakashi Sakamoto /* Sample Count */ 5545cd1d3f4STakashi Sakamoto case 0x0f: 5555cd1d3f4STakashi Sakamoto /* Anciliary Data */ 5565cd1d3f4STakashi Sakamoto case 0x10: 5575cd1d3f4STakashi Sakamoto /* Synchronization Stream (Stereo Raw audio) */ 5585cd1d3f4STakashi Sakamoto case 0x40: 5595cd1d3f4STakashi Sakamoto /* Don't care */ 5605cd1d3f4STakashi Sakamoto case 0xff: 5615cd1d3f4STakashi Sakamoto default: 56203be63b2STakashi Sakamoto return -ENXIO; /* not supported */ 5635cd1d3f4STakashi Sakamoto } 5645cd1d3f4STakashi Sakamoto } 5655cd1d3f4STakashi Sakamoto 56649c7b3fcSTakashi Sakamoto if (formation->pcm > AM824_MAX_CHANNELS_FOR_PCM || 56749c7b3fcSTakashi Sakamoto formation->midi > AM824_MAX_CHANNELS_FOR_MIDI) 56803be63b2STakashi Sakamoto return -ENXIO; 5695cd1d3f4STakashi Sakamoto 5705cd1d3f4STakashi Sakamoto return 0; 5715cd1d3f4STakashi Sakamoto } 5725cd1d3f4STakashi Sakamoto 5735cd1d3f4STakashi Sakamoto static int 5745cd1d3f4STakashi Sakamoto assume_stream_formats(struct snd_oxfw *oxfw, enum avc_general_plug_dir dir, 5755cd1d3f4STakashi Sakamoto unsigned int pid, u8 *buf, unsigned int *len, 5765cd1d3f4STakashi Sakamoto u8 **formats) 5775cd1d3f4STakashi Sakamoto { 5785cd1d3f4STakashi Sakamoto struct snd_oxfw_stream_formation formation; 5795cd1d3f4STakashi Sakamoto unsigned int i, eid; 5805cd1d3f4STakashi Sakamoto int err; 5815cd1d3f4STakashi Sakamoto 5825cd1d3f4STakashi Sakamoto /* get format at current sampling rate */ 5835cd1d3f4STakashi Sakamoto err = avc_stream_get_format_single(oxfw->unit, dir, pid, buf, len); 5845cd1d3f4STakashi Sakamoto if (err < 0) { 5855cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 5865cd1d3f4STakashi Sakamoto "fail to get current stream format for isoc %s plug %d:%d\n", 5875cd1d3f4STakashi Sakamoto (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : "out", 5885cd1d3f4STakashi Sakamoto pid, err); 5895cd1d3f4STakashi Sakamoto goto end; 5905cd1d3f4STakashi Sakamoto } 5915cd1d3f4STakashi Sakamoto 5925cd1d3f4STakashi Sakamoto /* parse and set stream format */ 5935cd1d3f4STakashi Sakamoto eid = 0; 5945cd1d3f4STakashi Sakamoto err = snd_oxfw_stream_parse_format(buf, &formation); 5955cd1d3f4STakashi Sakamoto if (err < 0) 5965cd1d3f4STakashi Sakamoto goto end; 5975cd1d3f4STakashi Sakamoto 598cd3b7116STakashi Sakamoto formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, *len, 599cd3b7116STakashi Sakamoto GFP_KERNEL); 600cd3b7116STakashi Sakamoto if (!formats[eid]) { 6015cd1d3f4STakashi Sakamoto err = -ENOMEM; 6025cd1d3f4STakashi Sakamoto goto end; 6035cd1d3f4STakashi Sakamoto } 6045cd1d3f4STakashi Sakamoto 6055cd1d3f4STakashi Sakamoto /* apply the format for each available sampling rate */ 6065cd1d3f4STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(oxfw_rate_table); i++) { 6075cd1d3f4STakashi Sakamoto if (formation.rate == oxfw_rate_table[i]) 6085cd1d3f4STakashi Sakamoto continue; 6095cd1d3f4STakashi Sakamoto 6105cd1d3f4STakashi Sakamoto err = avc_general_inquiry_sig_fmt(oxfw->unit, 6115cd1d3f4STakashi Sakamoto oxfw_rate_table[i], 6125cd1d3f4STakashi Sakamoto dir, pid); 6135cd1d3f4STakashi Sakamoto if (err < 0) 6145cd1d3f4STakashi Sakamoto continue; 6155cd1d3f4STakashi Sakamoto 6165cd1d3f4STakashi Sakamoto eid++; 617cd3b7116STakashi Sakamoto formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, *len, 618cd3b7116STakashi Sakamoto GFP_KERNEL); 6195cd1d3f4STakashi Sakamoto if (formats[eid] == NULL) { 6205cd1d3f4STakashi Sakamoto err = -ENOMEM; 6215cd1d3f4STakashi Sakamoto goto end; 6225cd1d3f4STakashi Sakamoto } 6235cd1d3f4STakashi Sakamoto formats[eid][2] = avc_stream_rate_table[i]; 6245cd1d3f4STakashi Sakamoto } 6255cd1d3f4STakashi Sakamoto 6265cd1d3f4STakashi Sakamoto err = 0; 6275cd1d3f4STakashi Sakamoto oxfw->assumed = true; 6285cd1d3f4STakashi Sakamoto end: 6295cd1d3f4STakashi Sakamoto return err; 6305cd1d3f4STakashi Sakamoto } 6315cd1d3f4STakashi Sakamoto 6325cd1d3f4STakashi Sakamoto static int fill_stream_formats(struct snd_oxfw *oxfw, 6335cd1d3f4STakashi Sakamoto enum avc_general_plug_dir dir, 6345cd1d3f4STakashi Sakamoto unsigned short pid) 6355cd1d3f4STakashi Sakamoto { 6365cd1d3f4STakashi Sakamoto u8 *buf, **formats; 6375cd1d3f4STakashi Sakamoto unsigned int len, eid = 0; 6385cd1d3f4STakashi Sakamoto struct snd_oxfw_stream_formation dummy; 6395cd1d3f4STakashi Sakamoto int err; 6405cd1d3f4STakashi Sakamoto 6415cd1d3f4STakashi Sakamoto buf = kmalloc(AVC_GENERIC_FRAME_MAXIMUM_BYTES, GFP_KERNEL); 6425cd1d3f4STakashi Sakamoto if (buf == NULL) 6435cd1d3f4STakashi Sakamoto return -ENOMEM; 6445cd1d3f4STakashi Sakamoto 645b0ac0009STakashi Sakamoto if (dir == AVC_GENERAL_PLUG_DIR_OUT) 646b0ac0009STakashi Sakamoto formats = oxfw->tx_stream_formats; 647b0ac0009STakashi Sakamoto else 6485cd1d3f4STakashi Sakamoto formats = oxfw->rx_stream_formats; 6495cd1d3f4STakashi Sakamoto 6505cd1d3f4STakashi Sakamoto /* get first entry */ 6515cd1d3f4STakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 6525cd1d3f4STakashi Sakamoto err = avc_stream_get_format_list(oxfw->unit, dir, 0, buf, &len, 0); 65303be63b2STakashi Sakamoto if (err == -ENXIO) { 6545cd1d3f4STakashi Sakamoto /* LIST subfunction is not implemented */ 6555cd1d3f4STakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 6565cd1d3f4STakashi Sakamoto err = assume_stream_formats(oxfw, dir, pid, buf, &len, 6575cd1d3f4STakashi Sakamoto formats); 6585cd1d3f4STakashi Sakamoto goto end; 6595cd1d3f4STakashi Sakamoto } else if (err < 0) { 6605cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 6615cd1d3f4STakashi Sakamoto "fail to get stream format %d for isoc %s plug %d:%d\n", 6625cd1d3f4STakashi Sakamoto eid, (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : "out", 6635cd1d3f4STakashi Sakamoto pid, err); 6645cd1d3f4STakashi Sakamoto goto end; 6655cd1d3f4STakashi Sakamoto } 6665cd1d3f4STakashi Sakamoto 6675cd1d3f4STakashi Sakamoto /* LIST subfunction is implemented */ 6685cd1d3f4STakashi Sakamoto while (eid < SND_OXFW_STREAM_FORMAT_ENTRIES) { 6695cd1d3f4STakashi Sakamoto /* The format is too short. */ 6705cd1d3f4STakashi Sakamoto if (len < 3) { 6715cd1d3f4STakashi Sakamoto err = -EIO; 6725cd1d3f4STakashi Sakamoto break; 6735cd1d3f4STakashi Sakamoto } 6745cd1d3f4STakashi Sakamoto 6755cd1d3f4STakashi Sakamoto /* parse and set stream format */ 6765cd1d3f4STakashi Sakamoto err = snd_oxfw_stream_parse_format(buf, &dummy); 6775cd1d3f4STakashi Sakamoto if (err < 0) 6785cd1d3f4STakashi Sakamoto break; 6795cd1d3f4STakashi Sakamoto 680cd3b7116STakashi Sakamoto formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, len, 681cd3b7116STakashi Sakamoto GFP_KERNEL); 682cd3b7116STakashi Sakamoto if (!formats[eid]) { 6835cd1d3f4STakashi Sakamoto err = -ENOMEM; 6845cd1d3f4STakashi Sakamoto break; 6855cd1d3f4STakashi Sakamoto } 6865cd1d3f4STakashi Sakamoto 6875cd1d3f4STakashi Sakamoto /* get next entry */ 6885cd1d3f4STakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 6895cd1d3f4STakashi Sakamoto err = avc_stream_get_format_list(oxfw->unit, dir, 0, 6905cd1d3f4STakashi Sakamoto buf, &len, ++eid); 6915cd1d3f4STakashi Sakamoto /* No entries remained. */ 6925cd1d3f4STakashi Sakamoto if (err == -EINVAL) { 6935cd1d3f4STakashi Sakamoto err = 0; 6945cd1d3f4STakashi Sakamoto break; 6955cd1d3f4STakashi Sakamoto } else if (err < 0) { 6965cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 6975cd1d3f4STakashi Sakamoto "fail to get stream format %d for isoc %s plug %d:%d\n", 6985cd1d3f4STakashi Sakamoto eid, (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : 6995cd1d3f4STakashi Sakamoto "out", 7005cd1d3f4STakashi Sakamoto pid, err); 7015cd1d3f4STakashi Sakamoto break; 7025cd1d3f4STakashi Sakamoto } 7035cd1d3f4STakashi Sakamoto } 7045cd1d3f4STakashi Sakamoto end: 7055cd1d3f4STakashi Sakamoto kfree(buf); 7065cd1d3f4STakashi Sakamoto return err; 7075cd1d3f4STakashi Sakamoto } 7085cd1d3f4STakashi Sakamoto 7095cd1d3f4STakashi Sakamoto int snd_oxfw_stream_discover(struct snd_oxfw *oxfw) 7105cd1d3f4STakashi Sakamoto { 7115cd1d3f4STakashi Sakamoto u8 plugs[AVC_PLUG_INFO_BUF_BYTES]; 71232056041STakashi Sakamoto struct snd_oxfw_stream_formation formation; 71332056041STakashi Sakamoto u8 *format; 71432056041STakashi Sakamoto unsigned int i; 7155cd1d3f4STakashi Sakamoto int err; 7165cd1d3f4STakashi Sakamoto 7175cd1d3f4STakashi Sakamoto /* the number of plugs for isoc in/out, ext in/out */ 7185cd1d3f4STakashi Sakamoto err = avc_general_get_plug_info(oxfw->unit, 0x1f, 0x07, 0x00, plugs); 7195cd1d3f4STakashi Sakamoto if (err < 0) { 7205cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 7215cd1d3f4STakashi Sakamoto "fail to get info for isoc/external in/out plugs: %d\n", 7225cd1d3f4STakashi Sakamoto err); 7235cd1d3f4STakashi Sakamoto goto end; 724b0ac0009STakashi Sakamoto } else if ((plugs[0] == 0) && (plugs[1] == 0)) { 72503be63b2STakashi Sakamoto err = -ENXIO; 7265cd1d3f4STakashi Sakamoto goto end; 7275cd1d3f4STakashi Sakamoto } 7285cd1d3f4STakashi Sakamoto 729b0ac0009STakashi Sakamoto /* use oPCR[0] if exists */ 730b0ac0009STakashi Sakamoto if (plugs[1] > 0) { 731b0ac0009STakashi Sakamoto err = fill_stream_formats(oxfw, AVC_GENERAL_PLUG_DIR_OUT, 0); 73241dbc792STakashi Sakamoto if (err < 0) { 73341dbc792STakashi Sakamoto if (err != -ENXIO) 73441dbc792STakashi Sakamoto return err; 73532056041STakashi Sakamoto 73641dbc792STakashi Sakamoto // The oPCR is not available for isoc communication. 73741dbc792STakashi Sakamoto err = 0; 73841dbc792STakashi Sakamoto } else { 73932056041STakashi Sakamoto for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 74032056041STakashi Sakamoto format = oxfw->tx_stream_formats[i]; 74132056041STakashi Sakamoto if (format == NULL) 74232056041STakashi Sakamoto continue; 74341dbc792STakashi Sakamoto err = snd_oxfw_stream_parse_format(format, 74441dbc792STakashi Sakamoto &formation); 74532056041STakashi Sakamoto if (err < 0) 74632056041STakashi Sakamoto continue; 74732056041STakashi Sakamoto 74832056041STakashi Sakamoto /* Add one MIDI port. */ 74932056041STakashi Sakamoto if (formation.midi > 0) 75032056041STakashi Sakamoto oxfw->midi_input_ports = 1; 75132056041STakashi Sakamoto } 75232056041STakashi Sakamoto 753b0ac0009STakashi Sakamoto oxfw->has_output = true; 754b0ac0009STakashi Sakamoto } 75541dbc792STakashi Sakamoto } 756b0ac0009STakashi Sakamoto 7575cd1d3f4STakashi Sakamoto /* use iPCR[0] if exists */ 75832056041STakashi Sakamoto if (plugs[0] > 0) { 7595cd1d3f4STakashi Sakamoto err = fill_stream_formats(oxfw, AVC_GENERAL_PLUG_DIR_IN, 0); 76041dbc792STakashi Sakamoto if (err < 0) { 76141dbc792STakashi Sakamoto if (err != -ENXIO) 76241dbc792STakashi Sakamoto return err; 76332056041STakashi Sakamoto 76441dbc792STakashi Sakamoto // The iPCR is not available for isoc communication. 76541dbc792STakashi Sakamoto err = 0; 76641dbc792STakashi Sakamoto } else { 76732056041STakashi Sakamoto for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 76832056041STakashi Sakamoto format = oxfw->rx_stream_formats[i]; 76932056041STakashi Sakamoto if (format == NULL) 77032056041STakashi Sakamoto continue; 77141dbc792STakashi Sakamoto err = snd_oxfw_stream_parse_format(format, 77241dbc792STakashi Sakamoto &formation); 77332056041STakashi Sakamoto if (err < 0) 77432056041STakashi Sakamoto continue; 77532056041STakashi Sakamoto 77632056041STakashi Sakamoto /* Add one MIDI port. */ 77732056041STakashi Sakamoto if (formation.midi > 0) 77832056041STakashi Sakamoto oxfw->midi_output_ports = 1; 77932056041STakashi Sakamoto } 78006a42a74STakashi Sakamoto 78106a42a74STakashi Sakamoto oxfw->has_input = true; 78232056041STakashi Sakamoto } 78341dbc792STakashi Sakamoto } 7845cd1d3f4STakashi Sakamoto end: 7855cd1d3f4STakashi Sakamoto return err; 7865cd1d3f4STakashi Sakamoto } 7878985f4acSTakashi Sakamoto 7888985f4acSTakashi Sakamoto void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw) 7898985f4acSTakashi Sakamoto { 7908985f4acSTakashi Sakamoto oxfw->dev_lock_changed = true; 7918985f4acSTakashi Sakamoto wake_up(&oxfw->hwdep_wait); 7928985f4acSTakashi Sakamoto } 7938985f4acSTakashi Sakamoto 7948985f4acSTakashi Sakamoto int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw) 7958985f4acSTakashi Sakamoto { 7968985f4acSTakashi Sakamoto int err; 7978985f4acSTakashi Sakamoto 7988985f4acSTakashi Sakamoto spin_lock_irq(&oxfw->lock); 7998985f4acSTakashi Sakamoto 8008985f4acSTakashi Sakamoto /* user land lock this */ 8018985f4acSTakashi Sakamoto if (oxfw->dev_lock_count < 0) { 8028985f4acSTakashi Sakamoto err = -EBUSY; 8038985f4acSTakashi Sakamoto goto end; 8048985f4acSTakashi Sakamoto } 8058985f4acSTakashi Sakamoto 8068985f4acSTakashi Sakamoto /* this is the first time */ 8078985f4acSTakashi Sakamoto if (oxfw->dev_lock_count++ == 0) 8088985f4acSTakashi Sakamoto snd_oxfw_stream_lock_changed(oxfw); 8098985f4acSTakashi Sakamoto err = 0; 8108985f4acSTakashi Sakamoto end: 8118985f4acSTakashi Sakamoto spin_unlock_irq(&oxfw->lock); 8128985f4acSTakashi Sakamoto return err; 8138985f4acSTakashi Sakamoto } 8148985f4acSTakashi Sakamoto 8158985f4acSTakashi Sakamoto void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw) 8168985f4acSTakashi Sakamoto { 8178985f4acSTakashi Sakamoto spin_lock_irq(&oxfw->lock); 8188985f4acSTakashi Sakamoto 8198985f4acSTakashi Sakamoto if (WARN_ON(oxfw->dev_lock_count <= 0)) 8208985f4acSTakashi Sakamoto goto end; 8218985f4acSTakashi Sakamoto if (--oxfw->dev_lock_count == 0) 8228985f4acSTakashi Sakamoto snd_oxfw_stream_lock_changed(oxfw); 8238985f4acSTakashi Sakamoto end: 8248985f4acSTakashi Sakamoto spin_unlock_irq(&oxfw->lock); 8258985f4acSTakashi Sakamoto } 826