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 12*bdaedca7STakashi 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; 15607a35edcSTakashi Sakamoto unsigned int flags; 157b0ac0009STakashi Sakamoto int err; 158b0ac0009STakashi Sakamoto 15907a35edcSTakashi Sakamoto if (!(oxfw->quirks & SND_OXFW_QUIRK_BLOCKING_TRANSMISSION)) 16007a35edcSTakashi Sakamoto flags = CIP_NONBLOCKING; 16107a35edcSTakashi Sakamoto else 16207a35edcSTakashi Sakamoto flags = CIP_BLOCKING; 16307a35edcSTakashi Sakamoto 164b0ac0009STakashi Sakamoto if (stream == &oxfw->tx_stream) { 165b0ac0009STakashi Sakamoto conn = &oxfw->out_conn; 166b0ac0009STakashi Sakamoto c_dir = CMP_OUTPUT; 167b0ac0009STakashi Sakamoto s_dir = AMDTP_IN_STREAM; 168a092f000STakashi Sakamoto 169a092f000STakashi Sakamoto if (oxfw->quirks & SND_OXFW_QUIRK_JUMBO_PAYLOAD) 170a092f000STakashi Sakamoto flags |= CIP_JUMBO_PAYLOAD; 171a6f91693STakashi Sakamoto if (oxfw->quirks & SND_OXFW_QUIRK_WRONG_DBS) 172a092f000STakashi Sakamoto flags |= CIP_WRONG_DBS; 173b0ac0009STakashi Sakamoto } else { 174b0ac0009STakashi Sakamoto conn = &oxfw->in_conn; 175b0ac0009STakashi Sakamoto c_dir = CMP_INPUT; 176b0ac0009STakashi Sakamoto s_dir = AMDTP_OUT_STREAM; 177b0ac0009STakashi Sakamoto } 178b0ac0009STakashi Sakamoto 179b0ac0009STakashi Sakamoto err = cmp_connection_init(conn, oxfw->unit, c_dir, 0); 180b0ac0009STakashi Sakamoto if (err < 0) 181779f0dbaSTakashi Sakamoto return err; 182b0ac0009STakashi Sakamoto 183a092f000STakashi Sakamoto err = amdtp_am824_init(stream, oxfw->unit, s_dir, flags); 184b0ac0009STakashi Sakamoto if (err < 0) { 185b0ac0009STakashi Sakamoto cmp_connection_destroy(conn); 186779f0dbaSTakashi Sakamoto return err; 187b0ac0009STakashi Sakamoto } 188b0ac0009STakashi Sakamoto 189779f0dbaSTakashi Sakamoto return 0; 190b0ac0009STakashi Sakamoto } 191b0ac0009STakashi Sakamoto 1920356ce3aSTakashi Sakamoto static int keep_resources(struct snd_oxfw *oxfw, struct amdtp_stream *stream) 1930356ce3aSTakashi Sakamoto { 1940356ce3aSTakashi Sakamoto enum avc_general_plug_dir dir; 1950356ce3aSTakashi Sakamoto u8 **formats; 1960356ce3aSTakashi Sakamoto struct snd_oxfw_stream_formation formation; 1977bc93821STakashi Sakamoto struct cmp_connection *conn; 1980356ce3aSTakashi Sakamoto int i; 1990356ce3aSTakashi Sakamoto int err; 2000356ce3aSTakashi Sakamoto 2010356ce3aSTakashi Sakamoto if (stream == &oxfw->rx_stream) { 2020356ce3aSTakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_IN; 2030356ce3aSTakashi Sakamoto formats = oxfw->rx_stream_formats; 2047bc93821STakashi Sakamoto conn = &oxfw->in_conn; 2050356ce3aSTakashi Sakamoto } else { 2060356ce3aSTakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_OUT; 2070356ce3aSTakashi Sakamoto formats = oxfw->tx_stream_formats; 2087bc93821STakashi Sakamoto conn = &oxfw->out_conn; 2090356ce3aSTakashi Sakamoto } 2100356ce3aSTakashi Sakamoto 2110356ce3aSTakashi Sakamoto err = snd_oxfw_stream_get_current_formation(oxfw, dir, &formation); 2120356ce3aSTakashi Sakamoto if (err < 0) 2130356ce3aSTakashi Sakamoto return err; 2140356ce3aSTakashi Sakamoto 2150356ce3aSTakashi Sakamoto for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 2160356ce3aSTakashi Sakamoto struct snd_oxfw_stream_formation fmt; 2170356ce3aSTakashi Sakamoto 2180356ce3aSTakashi Sakamoto if (formats[i] == NULL) 2190356ce3aSTakashi Sakamoto break; 2200356ce3aSTakashi Sakamoto 2210356ce3aSTakashi Sakamoto err = snd_oxfw_stream_parse_format(formats[i], &fmt); 2220356ce3aSTakashi Sakamoto if (err < 0) 2230356ce3aSTakashi Sakamoto return err; 2240356ce3aSTakashi Sakamoto 2250356ce3aSTakashi Sakamoto if (fmt.rate == formation.rate && fmt.pcm == formation.pcm && 2260356ce3aSTakashi Sakamoto fmt.midi == formation.midi) 2270356ce3aSTakashi Sakamoto break; 2280356ce3aSTakashi Sakamoto } 2290356ce3aSTakashi Sakamoto if (i == SND_OXFW_STREAM_FORMAT_ENTRIES) 2300356ce3aSTakashi Sakamoto return -EINVAL; 2310356ce3aSTakashi Sakamoto 2320356ce3aSTakashi Sakamoto // The stream should have one pcm channels at least. 2330356ce3aSTakashi Sakamoto if (formation.pcm == 0) 2340356ce3aSTakashi Sakamoto return -EINVAL; 2350356ce3aSTakashi Sakamoto 2367bc93821STakashi Sakamoto err = amdtp_am824_set_parameters(stream, formation.rate, formation.pcm, 2370356ce3aSTakashi Sakamoto formation.midi * 8, false); 2387bc93821STakashi Sakamoto if (err < 0) 2397bc93821STakashi Sakamoto return err; 2407bc93821STakashi Sakamoto 2417bc93821STakashi Sakamoto return cmp_connection_reserve(conn, amdtp_stream_get_max_payload(stream)); 2420356ce3aSTakashi Sakamoto } 2430356ce3aSTakashi Sakamoto 2444f380d00STakashi Sakamoto int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw, 245b0ac0009STakashi Sakamoto struct amdtp_stream *stream, 2461d6a722cSTakashi Sakamoto unsigned int rate, unsigned int pcm_channels, 2473299d2a0STakashi Sakamoto unsigned int frames_per_period, 2483299d2a0STakashi Sakamoto unsigned int frames_per_buffer) 249b0ac0009STakashi Sakamoto { 250f3699e2cSTakashi Sakamoto struct snd_oxfw_stream_formation formation; 251b0ac0009STakashi Sakamoto enum avc_general_plug_dir dir; 2524f380d00STakashi Sakamoto int err; 253e2786ca6STakashi Sakamoto 25420358d44STakashi Sakamoto // Considering JACK/FFADO streaming: 25520358d44STakashi Sakamoto // TODO: This can be removed hwdep functionality becomes popular. 25620358d44STakashi Sakamoto err = check_connection_used_by_others(oxfw, &oxfw->rx_stream); 25720358d44STakashi Sakamoto if (err < 0) 25820358d44STakashi Sakamoto return err; 25920358d44STakashi Sakamoto if (oxfw->has_output) { 26020358d44STakashi Sakamoto err = check_connection_used_by_others(oxfw, &oxfw->tx_stream); 26120358d44STakashi Sakamoto if (err < 0) 26220358d44STakashi Sakamoto return err; 263b0ac0009STakashi Sakamoto } 264b0ac0009STakashi Sakamoto 26520358d44STakashi Sakamoto if (stream == &oxfw->tx_stream) 26620358d44STakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_OUT; 26720358d44STakashi Sakamoto else 26820358d44STakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_IN; 269b0ac0009STakashi Sakamoto 270b0ac0009STakashi Sakamoto err = snd_oxfw_stream_get_current_formation(oxfw, dir, &formation); 271e2786ca6STakashi Sakamoto if (err < 0) 27220358d44STakashi Sakamoto return err; 2734f380d00STakashi Sakamoto if (rate == 0) { 27405588d34STakashi Sakamoto rate = formation.rate; 27505588d34STakashi Sakamoto pcm_channels = formation.pcm; 2764f380d00STakashi Sakamoto } 2774f380d00STakashi Sakamoto if (formation.rate != rate || formation.pcm != pcm_channels) { 278ac5d7786STakashi Sakamoto amdtp_domain_stop(&oxfw->domain); 279ac5d7786STakashi Sakamoto 280e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 2813f2ce83dSTakashi Sakamoto cmp_connection_release(&oxfw->in_conn); 282e34244ddSTakashi Sakamoto 283e34244ddSTakashi Sakamoto if (oxfw->has_output) { 284e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 2853f2ce83dSTakashi Sakamoto cmp_connection_release(&oxfw->out_conn); 286e34244ddSTakashi Sakamoto } 2874f380d00STakashi Sakamoto } 288f3699e2cSTakashi Sakamoto 2894f380d00STakashi Sakamoto if (oxfw->substreams_count == 0 || 2904f380d00STakashi Sakamoto formation.rate != rate || formation.pcm != pcm_channels) { 291b0ac0009STakashi Sakamoto err = set_stream_format(oxfw, stream, rate, pcm_channels); 292f3699e2cSTakashi Sakamoto if (err < 0) { 293f3699e2cSTakashi Sakamoto dev_err(&oxfw->unit->device, 294f3699e2cSTakashi Sakamoto "fail to set stream format: %d\n", err); 29520358d44STakashi Sakamoto return err; 29620358d44STakashi Sakamoto } 2970356ce3aSTakashi Sakamoto 2980356ce3aSTakashi Sakamoto err = keep_resources(oxfw, &oxfw->rx_stream); 2990356ce3aSTakashi Sakamoto if (err < 0) 3000356ce3aSTakashi Sakamoto return err; 3010356ce3aSTakashi Sakamoto 3020356ce3aSTakashi Sakamoto if (oxfw->has_output) { 3030356ce3aSTakashi Sakamoto err = keep_resources(oxfw, &oxfw->tx_stream); 3047bc93821STakashi Sakamoto if (err < 0) { 3057bc93821STakashi Sakamoto cmp_connection_release(&oxfw->in_conn); 3060356ce3aSTakashi Sakamoto return err; 3070356ce3aSTakashi Sakamoto } 308f3699e2cSTakashi Sakamoto } 3091d6a722cSTakashi Sakamoto 3101d6a722cSTakashi Sakamoto err = amdtp_domain_set_events_per_period(&oxfw->domain, 3113299d2a0STakashi Sakamoto frames_per_period, frames_per_buffer); 3121d6a722cSTakashi Sakamoto if (err < 0) { 3131d6a722cSTakashi Sakamoto cmp_connection_release(&oxfw->in_conn); 3141d6a722cSTakashi Sakamoto if (oxfw->has_output) 3151d6a722cSTakashi Sakamoto cmp_connection_release(&oxfw->out_conn); 3161d6a722cSTakashi Sakamoto return err; 3171d6a722cSTakashi Sakamoto } 3187bc93821STakashi Sakamoto } 319b0ac0009STakashi Sakamoto 3204f380d00STakashi Sakamoto return 0; 3214f380d00STakashi Sakamoto } 3224f380d00STakashi Sakamoto 3234f380d00STakashi Sakamoto int snd_oxfw_stream_start_duplex(struct snd_oxfw *oxfw) 3244f380d00STakashi Sakamoto { 3254f380d00STakashi Sakamoto int err; 3264f380d00STakashi Sakamoto 3274f380d00STakashi Sakamoto if (oxfw->substreams_count == 0) 3284f380d00STakashi Sakamoto return -EIO; 3294f380d00STakashi Sakamoto 3304f380d00STakashi Sakamoto if (amdtp_streaming_error(&oxfw->rx_stream) || 3314f380d00STakashi Sakamoto amdtp_streaming_error(&oxfw->tx_stream)) { 332ac5d7786STakashi Sakamoto amdtp_domain_stop(&oxfw->domain); 3334f380d00STakashi Sakamoto 334ac5d7786STakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 335ac5d7786STakashi Sakamoto if (oxfw->has_output) 3364f380d00STakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 3374f380d00STakashi Sakamoto } 3384f380d00STakashi Sakamoto 33920358d44STakashi Sakamoto if (!amdtp_stream_running(&oxfw->rx_stream)) { 34020358d44STakashi Sakamoto err = start_stream(oxfw, &oxfw->rx_stream); 341b0ac0009STakashi Sakamoto if (err < 0) { 342b0ac0009STakashi Sakamoto dev_err(&oxfw->unit->device, 343ac5d7786STakashi Sakamoto "fail to prepare rx stream: %d\n", err); 344ac5d7786STakashi Sakamoto goto error; 345ac5d7786STakashi Sakamoto } 346ac5d7786STakashi Sakamoto 347ac5d7786STakashi Sakamoto if (oxfw->has_output && 348ac5d7786STakashi Sakamoto !amdtp_stream_running(&oxfw->tx_stream)) { 349ac5d7786STakashi Sakamoto err = start_stream(oxfw, &oxfw->tx_stream); 350ac5d7786STakashi Sakamoto if (err < 0) { 351ac5d7786STakashi Sakamoto dev_err(&oxfw->unit->device, 352ac5d7786STakashi Sakamoto "fail to prepare tx stream: %d\n", err); 35320358d44STakashi Sakamoto goto error; 35420358d44STakashi Sakamoto } 35520358d44STakashi Sakamoto } 35620358d44STakashi Sakamoto 357acfedcbeSTakashi Sakamoto err = amdtp_domain_start(&oxfw->domain, 0); 358ac5d7786STakashi Sakamoto if (err < 0) 359ac5d7786STakashi Sakamoto goto error; 360ac5d7786STakashi Sakamoto 361*bdaedca7STakashi Sakamoto if (!amdtp_domain_wait_ready(&oxfw->domain, READY_TIMEOUT_MS)) { 362ac5d7786STakashi Sakamoto err = -ETIMEDOUT; 36320358d44STakashi Sakamoto goto error; 364b0ac0009STakashi Sakamoto } 365f3699e2cSTakashi Sakamoto } 366f3699e2cSTakashi Sakamoto 36720358d44STakashi Sakamoto return 0; 36820358d44STakashi Sakamoto error: 369ac5d7786STakashi Sakamoto amdtp_domain_stop(&oxfw->domain); 370ac5d7786STakashi Sakamoto 37120358d44STakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 372ac5d7786STakashi Sakamoto if (oxfw->has_output) 37320358d44STakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 374ac5d7786STakashi Sakamoto 375e2786ca6STakashi Sakamoto return err; 376e2786ca6STakashi Sakamoto } 377e2786ca6STakashi Sakamoto 378779f0dbaSTakashi Sakamoto void snd_oxfw_stream_stop_duplex(struct snd_oxfw *oxfw) 379e2786ca6STakashi Sakamoto { 3804a0a0472STakashi Sakamoto if (oxfw->substreams_count == 0) { 381ac5d7786STakashi Sakamoto amdtp_domain_stop(&oxfw->domain); 382ac5d7786STakashi Sakamoto 383e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 3847bc93821STakashi Sakamoto cmp_connection_release(&oxfw->in_conn); 385b0ac0009STakashi Sakamoto 386e34244ddSTakashi Sakamoto if (oxfw->has_output) { 387e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 3887bc93821STakashi Sakamoto cmp_connection_release(&oxfw->out_conn); 389e34244ddSTakashi Sakamoto } 39020358d44STakashi Sakamoto } 391e2786ca6STakashi Sakamoto } 392e2786ca6STakashi Sakamoto 393779f0dbaSTakashi Sakamoto static void destroy_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream) 394e2786ca6STakashi Sakamoto { 395b0ac0009STakashi Sakamoto struct cmp_connection *conn; 396e2786ca6STakashi Sakamoto 397b0ac0009STakashi Sakamoto if (stream == &oxfw->tx_stream) 398b0ac0009STakashi Sakamoto conn = &oxfw->out_conn; 399e2786ca6STakashi Sakamoto else 400b0ac0009STakashi Sakamoto conn = &oxfw->in_conn; 401b0ac0009STakashi Sakamoto 402b0ac0009STakashi Sakamoto amdtp_stream_destroy(stream); 403b0ac0009STakashi Sakamoto cmp_connection_destroy(conn); 404b0ac0009STakashi Sakamoto } 405b0ac0009STakashi Sakamoto 406779f0dbaSTakashi Sakamoto int snd_oxfw_stream_init_duplex(struct snd_oxfw *oxfw) 407779f0dbaSTakashi Sakamoto { 408779f0dbaSTakashi Sakamoto int err; 409779f0dbaSTakashi Sakamoto 410779f0dbaSTakashi Sakamoto err = init_stream(oxfw, &oxfw->rx_stream); 411779f0dbaSTakashi Sakamoto if (err < 0) 412779f0dbaSTakashi Sakamoto return err; 413779f0dbaSTakashi Sakamoto 414779f0dbaSTakashi Sakamoto if (oxfw->has_output) { 415779f0dbaSTakashi Sakamoto err = init_stream(oxfw, &oxfw->tx_stream); 416779f0dbaSTakashi Sakamoto if (err < 0) { 417779f0dbaSTakashi Sakamoto destroy_stream(oxfw, &oxfw->rx_stream); 418779f0dbaSTakashi Sakamoto return err; 419779f0dbaSTakashi Sakamoto } 420779f0dbaSTakashi Sakamoto } 421779f0dbaSTakashi Sakamoto 422ac5d7786STakashi Sakamoto err = amdtp_domain_init(&oxfw->domain); 423ac5d7786STakashi Sakamoto if (err < 0) { 424ac5d7786STakashi Sakamoto destroy_stream(oxfw, &oxfw->rx_stream); 425ac5d7786STakashi Sakamoto if (oxfw->has_output) 426ac5d7786STakashi Sakamoto destroy_stream(oxfw, &oxfw->tx_stream); 427ac5d7786STakashi Sakamoto } 428ac5d7786STakashi Sakamoto 429ac5d7786STakashi Sakamoto return err; 430779f0dbaSTakashi Sakamoto } 431779f0dbaSTakashi Sakamoto 432779f0dbaSTakashi Sakamoto // This function should be called before starting the stream or after stopping 433779f0dbaSTakashi Sakamoto // the streams. 434779f0dbaSTakashi Sakamoto void snd_oxfw_stream_destroy_duplex(struct snd_oxfw *oxfw) 435779f0dbaSTakashi Sakamoto { 436ac5d7786STakashi Sakamoto amdtp_domain_destroy(&oxfw->domain); 437ac5d7786STakashi Sakamoto 438779f0dbaSTakashi Sakamoto destroy_stream(oxfw, &oxfw->rx_stream); 439779f0dbaSTakashi Sakamoto 440779f0dbaSTakashi Sakamoto if (oxfw->has_output) 441779f0dbaSTakashi Sakamoto destroy_stream(oxfw, &oxfw->tx_stream); 442779f0dbaSTakashi Sakamoto } 443779f0dbaSTakashi Sakamoto 444779f0dbaSTakashi Sakamoto void snd_oxfw_stream_update_duplex(struct snd_oxfw *oxfw) 445b0ac0009STakashi Sakamoto { 446ac5d7786STakashi Sakamoto amdtp_domain_stop(&oxfw->domain); 447ac5d7786STakashi Sakamoto 448e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 449b0ac0009STakashi Sakamoto 450e34244ddSTakashi Sakamoto amdtp_stream_pcm_abort(&oxfw->rx_stream); 451e34244ddSTakashi Sakamoto 452e34244ddSTakashi Sakamoto if (oxfw->has_output) { 453e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 454e34244ddSTakashi Sakamoto 455e34244ddSTakashi Sakamoto amdtp_stream_pcm_abort(&oxfw->tx_stream); 456e34244ddSTakashi Sakamoto } 457e2786ca6STakashi Sakamoto } 4585cd1d3f4STakashi Sakamoto 4593c96101fSTakashi Sakamoto int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw, 4603c96101fSTakashi Sakamoto enum avc_general_plug_dir dir, 4613c96101fSTakashi Sakamoto struct snd_oxfw_stream_formation *formation) 4623c96101fSTakashi Sakamoto { 4633c96101fSTakashi Sakamoto u8 *format; 4643c96101fSTakashi Sakamoto unsigned int len; 4653c96101fSTakashi Sakamoto int err; 4663c96101fSTakashi Sakamoto 4673c96101fSTakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 4683c96101fSTakashi Sakamoto format = kmalloc(len, GFP_KERNEL); 4693c96101fSTakashi Sakamoto if (format == NULL) 4703c96101fSTakashi Sakamoto return -ENOMEM; 4713c96101fSTakashi Sakamoto 4723c96101fSTakashi Sakamoto err = avc_stream_get_format_single(oxfw->unit, dir, 0, format, &len); 4733c96101fSTakashi Sakamoto if (err < 0) 4743c96101fSTakashi Sakamoto goto end; 4753c96101fSTakashi Sakamoto if (len < 3) { 4763c96101fSTakashi Sakamoto err = -EIO; 4773c96101fSTakashi Sakamoto goto end; 4783c96101fSTakashi Sakamoto } 4793c96101fSTakashi Sakamoto 4803c96101fSTakashi Sakamoto err = snd_oxfw_stream_parse_format(format, formation); 4813c96101fSTakashi Sakamoto end: 4823c96101fSTakashi Sakamoto kfree(format); 4833c96101fSTakashi Sakamoto return err; 4843c96101fSTakashi Sakamoto } 4853c96101fSTakashi Sakamoto 4865cd1d3f4STakashi Sakamoto /* 4875cd1d3f4STakashi Sakamoto * See Table 6.16 - AM824 Stream Format 4885cd1d3f4STakashi Sakamoto * Figure 6.19 - format_information field for AM824 Compound 4895cd1d3f4STakashi Sakamoto * in AV/C Stream Format Information Specification 1.1 (Apr 2005, 1394TA) 4905cd1d3f4STakashi Sakamoto * Also 'Clause 12 AM824 sequence adaption layers' in IEC 61883-6:2005 4915cd1d3f4STakashi Sakamoto */ 4925cd1d3f4STakashi Sakamoto int snd_oxfw_stream_parse_format(u8 *format, 4935cd1d3f4STakashi Sakamoto struct snd_oxfw_stream_formation *formation) 4945cd1d3f4STakashi Sakamoto { 4955cd1d3f4STakashi Sakamoto unsigned int i, e, channels, type; 4965cd1d3f4STakashi Sakamoto 4975cd1d3f4STakashi Sakamoto memset(formation, 0, sizeof(struct snd_oxfw_stream_formation)); 4985cd1d3f4STakashi Sakamoto 4995cd1d3f4STakashi Sakamoto /* 5005cd1d3f4STakashi Sakamoto * this module can support a hierarchy combination that: 5015cd1d3f4STakashi Sakamoto * Root: Audio and Music (0x90) 5025cd1d3f4STakashi Sakamoto * Level 1: AM824 Compound (0x40) 5035cd1d3f4STakashi Sakamoto */ 5045cd1d3f4STakashi Sakamoto if ((format[0] != 0x90) || (format[1] != 0x40)) 50503be63b2STakashi Sakamoto return -ENXIO; 5065cd1d3f4STakashi Sakamoto 5075cd1d3f4STakashi Sakamoto /* check the sampling rate */ 5085cd1d3f4STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(avc_stream_rate_table); i++) { 5095cd1d3f4STakashi Sakamoto if (format[2] == avc_stream_rate_table[i]) 5105cd1d3f4STakashi Sakamoto break; 5115cd1d3f4STakashi Sakamoto } 5125cd1d3f4STakashi Sakamoto if (i == ARRAY_SIZE(avc_stream_rate_table)) 51303be63b2STakashi Sakamoto return -ENXIO; 5145cd1d3f4STakashi Sakamoto 5155cd1d3f4STakashi Sakamoto formation->rate = oxfw_rate_table[i]; 5165cd1d3f4STakashi Sakamoto 5175cd1d3f4STakashi Sakamoto for (e = 0; e < format[4]; e++) { 5185cd1d3f4STakashi Sakamoto channels = format[5 + e * 2]; 5195cd1d3f4STakashi Sakamoto type = format[6 + e * 2]; 5205cd1d3f4STakashi Sakamoto 5215cd1d3f4STakashi Sakamoto switch (type) { 5225cd1d3f4STakashi Sakamoto /* IEC 60958 Conformant, currently handled as MBLA */ 5235cd1d3f4STakashi Sakamoto case 0x00: 5245cd1d3f4STakashi Sakamoto /* Multi Bit Linear Audio (Raw) */ 5255cd1d3f4STakashi Sakamoto case 0x06: 5265cd1d3f4STakashi Sakamoto formation->pcm += channels; 5275cd1d3f4STakashi Sakamoto break; 5285cd1d3f4STakashi Sakamoto /* MIDI Conformant */ 5295cd1d3f4STakashi Sakamoto case 0x0d: 5305cd1d3f4STakashi Sakamoto formation->midi = channels; 5315cd1d3f4STakashi Sakamoto break; 5325cd1d3f4STakashi Sakamoto /* IEC 61937-3 to 7 */ 5335cd1d3f4STakashi Sakamoto case 0x01: 5345cd1d3f4STakashi Sakamoto case 0x02: 5355cd1d3f4STakashi Sakamoto case 0x03: 5365cd1d3f4STakashi Sakamoto case 0x04: 5375cd1d3f4STakashi Sakamoto case 0x05: 5385cd1d3f4STakashi Sakamoto /* Multi Bit Linear Audio */ 5395cd1d3f4STakashi Sakamoto case 0x07: /* DVD-Audio */ 5405cd1d3f4STakashi Sakamoto case 0x0c: /* High Precision */ 5415cd1d3f4STakashi Sakamoto /* One Bit Audio */ 5425cd1d3f4STakashi Sakamoto case 0x08: /* (Plain) Raw */ 5435cd1d3f4STakashi Sakamoto case 0x09: /* (Plain) SACD */ 5445cd1d3f4STakashi Sakamoto case 0x0a: /* (Encoded) Raw */ 5455cd1d3f4STakashi Sakamoto case 0x0b: /* (Encoded) SACD */ 5465cd1d3f4STakashi Sakamoto /* SMPTE Time-Code conformant */ 5475cd1d3f4STakashi Sakamoto case 0x0e: 5485cd1d3f4STakashi Sakamoto /* Sample Count */ 5495cd1d3f4STakashi Sakamoto case 0x0f: 5505cd1d3f4STakashi Sakamoto /* Anciliary Data */ 5515cd1d3f4STakashi Sakamoto case 0x10: 5525cd1d3f4STakashi Sakamoto /* Synchronization Stream (Stereo Raw audio) */ 5535cd1d3f4STakashi Sakamoto case 0x40: 5545cd1d3f4STakashi Sakamoto /* Don't care */ 5555cd1d3f4STakashi Sakamoto case 0xff: 5565cd1d3f4STakashi Sakamoto default: 55703be63b2STakashi Sakamoto return -ENXIO; /* not supported */ 5585cd1d3f4STakashi Sakamoto } 5595cd1d3f4STakashi Sakamoto } 5605cd1d3f4STakashi Sakamoto 56149c7b3fcSTakashi Sakamoto if (formation->pcm > AM824_MAX_CHANNELS_FOR_PCM || 56249c7b3fcSTakashi Sakamoto formation->midi > AM824_MAX_CHANNELS_FOR_MIDI) 56303be63b2STakashi Sakamoto return -ENXIO; 5645cd1d3f4STakashi Sakamoto 5655cd1d3f4STakashi Sakamoto return 0; 5665cd1d3f4STakashi Sakamoto } 5675cd1d3f4STakashi Sakamoto 5685cd1d3f4STakashi Sakamoto static int 5695cd1d3f4STakashi Sakamoto assume_stream_formats(struct snd_oxfw *oxfw, enum avc_general_plug_dir dir, 5705cd1d3f4STakashi Sakamoto unsigned int pid, u8 *buf, unsigned int *len, 5715cd1d3f4STakashi Sakamoto u8 **formats) 5725cd1d3f4STakashi Sakamoto { 5735cd1d3f4STakashi Sakamoto struct snd_oxfw_stream_formation formation; 5745cd1d3f4STakashi Sakamoto unsigned int i, eid; 5755cd1d3f4STakashi Sakamoto int err; 5765cd1d3f4STakashi Sakamoto 5775cd1d3f4STakashi Sakamoto /* get format at current sampling rate */ 5785cd1d3f4STakashi Sakamoto err = avc_stream_get_format_single(oxfw->unit, dir, pid, buf, len); 5795cd1d3f4STakashi Sakamoto if (err < 0) { 5805cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 5815cd1d3f4STakashi Sakamoto "fail to get current stream format for isoc %s plug %d:%d\n", 5825cd1d3f4STakashi Sakamoto (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : "out", 5835cd1d3f4STakashi Sakamoto pid, err); 5845cd1d3f4STakashi Sakamoto goto end; 5855cd1d3f4STakashi Sakamoto } 5865cd1d3f4STakashi Sakamoto 5875cd1d3f4STakashi Sakamoto /* parse and set stream format */ 5885cd1d3f4STakashi Sakamoto eid = 0; 5895cd1d3f4STakashi Sakamoto err = snd_oxfw_stream_parse_format(buf, &formation); 5905cd1d3f4STakashi Sakamoto if (err < 0) 5915cd1d3f4STakashi Sakamoto goto end; 5925cd1d3f4STakashi Sakamoto 593cd3b7116STakashi Sakamoto formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, *len, 594cd3b7116STakashi Sakamoto GFP_KERNEL); 595cd3b7116STakashi Sakamoto if (!formats[eid]) { 5965cd1d3f4STakashi Sakamoto err = -ENOMEM; 5975cd1d3f4STakashi Sakamoto goto end; 5985cd1d3f4STakashi Sakamoto } 5995cd1d3f4STakashi Sakamoto 6005cd1d3f4STakashi Sakamoto /* apply the format for each available sampling rate */ 6015cd1d3f4STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(oxfw_rate_table); i++) { 6025cd1d3f4STakashi Sakamoto if (formation.rate == oxfw_rate_table[i]) 6035cd1d3f4STakashi Sakamoto continue; 6045cd1d3f4STakashi Sakamoto 6055cd1d3f4STakashi Sakamoto err = avc_general_inquiry_sig_fmt(oxfw->unit, 6065cd1d3f4STakashi Sakamoto oxfw_rate_table[i], 6075cd1d3f4STakashi Sakamoto dir, pid); 6085cd1d3f4STakashi Sakamoto if (err < 0) 6095cd1d3f4STakashi Sakamoto continue; 6105cd1d3f4STakashi Sakamoto 6115cd1d3f4STakashi Sakamoto eid++; 612cd3b7116STakashi Sakamoto formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, *len, 613cd3b7116STakashi Sakamoto GFP_KERNEL); 6145cd1d3f4STakashi Sakamoto if (formats[eid] == NULL) { 6155cd1d3f4STakashi Sakamoto err = -ENOMEM; 6165cd1d3f4STakashi Sakamoto goto end; 6175cd1d3f4STakashi Sakamoto } 6185cd1d3f4STakashi Sakamoto formats[eid][2] = avc_stream_rate_table[i]; 6195cd1d3f4STakashi Sakamoto } 6205cd1d3f4STakashi Sakamoto 6215cd1d3f4STakashi Sakamoto err = 0; 6225cd1d3f4STakashi Sakamoto oxfw->assumed = true; 6235cd1d3f4STakashi Sakamoto end: 6245cd1d3f4STakashi Sakamoto return err; 6255cd1d3f4STakashi Sakamoto } 6265cd1d3f4STakashi Sakamoto 6275cd1d3f4STakashi Sakamoto static int fill_stream_formats(struct snd_oxfw *oxfw, 6285cd1d3f4STakashi Sakamoto enum avc_general_plug_dir dir, 6295cd1d3f4STakashi Sakamoto unsigned short pid) 6305cd1d3f4STakashi Sakamoto { 6315cd1d3f4STakashi Sakamoto u8 *buf, **formats; 6325cd1d3f4STakashi Sakamoto unsigned int len, eid = 0; 6335cd1d3f4STakashi Sakamoto struct snd_oxfw_stream_formation dummy; 6345cd1d3f4STakashi Sakamoto int err; 6355cd1d3f4STakashi Sakamoto 6365cd1d3f4STakashi Sakamoto buf = kmalloc(AVC_GENERIC_FRAME_MAXIMUM_BYTES, GFP_KERNEL); 6375cd1d3f4STakashi Sakamoto if (buf == NULL) 6385cd1d3f4STakashi Sakamoto return -ENOMEM; 6395cd1d3f4STakashi Sakamoto 640b0ac0009STakashi Sakamoto if (dir == AVC_GENERAL_PLUG_DIR_OUT) 641b0ac0009STakashi Sakamoto formats = oxfw->tx_stream_formats; 642b0ac0009STakashi Sakamoto else 6435cd1d3f4STakashi Sakamoto formats = oxfw->rx_stream_formats; 6445cd1d3f4STakashi Sakamoto 6455cd1d3f4STakashi Sakamoto /* get first entry */ 6465cd1d3f4STakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 6475cd1d3f4STakashi Sakamoto err = avc_stream_get_format_list(oxfw->unit, dir, 0, buf, &len, 0); 64803be63b2STakashi Sakamoto if (err == -ENXIO) { 6495cd1d3f4STakashi Sakamoto /* LIST subfunction is not implemented */ 6505cd1d3f4STakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 6515cd1d3f4STakashi Sakamoto err = assume_stream_formats(oxfw, dir, pid, buf, &len, 6525cd1d3f4STakashi Sakamoto formats); 6535cd1d3f4STakashi Sakamoto goto end; 6545cd1d3f4STakashi Sakamoto } else if (err < 0) { 6555cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 6565cd1d3f4STakashi Sakamoto "fail to get stream format %d for isoc %s plug %d:%d\n", 6575cd1d3f4STakashi Sakamoto eid, (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : "out", 6585cd1d3f4STakashi Sakamoto pid, err); 6595cd1d3f4STakashi Sakamoto goto end; 6605cd1d3f4STakashi Sakamoto } 6615cd1d3f4STakashi Sakamoto 6625cd1d3f4STakashi Sakamoto /* LIST subfunction is implemented */ 6635cd1d3f4STakashi Sakamoto while (eid < SND_OXFW_STREAM_FORMAT_ENTRIES) { 6645cd1d3f4STakashi Sakamoto /* The format is too short. */ 6655cd1d3f4STakashi Sakamoto if (len < 3) { 6665cd1d3f4STakashi Sakamoto err = -EIO; 6675cd1d3f4STakashi Sakamoto break; 6685cd1d3f4STakashi Sakamoto } 6695cd1d3f4STakashi Sakamoto 6705cd1d3f4STakashi Sakamoto /* parse and set stream format */ 6715cd1d3f4STakashi Sakamoto err = snd_oxfw_stream_parse_format(buf, &dummy); 6725cd1d3f4STakashi Sakamoto if (err < 0) 6735cd1d3f4STakashi Sakamoto break; 6745cd1d3f4STakashi Sakamoto 675cd3b7116STakashi Sakamoto formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, len, 676cd3b7116STakashi Sakamoto GFP_KERNEL); 677cd3b7116STakashi Sakamoto if (!formats[eid]) { 6785cd1d3f4STakashi Sakamoto err = -ENOMEM; 6795cd1d3f4STakashi Sakamoto break; 6805cd1d3f4STakashi Sakamoto } 6815cd1d3f4STakashi Sakamoto 6825cd1d3f4STakashi Sakamoto /* get next entry */ 6835cd1d3f4STakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 6845cd1d3f4STakashi Sakamoto err = avc_stream_get_format_list(oxfw->unit, dir, 0, 6855cd1d3f4STakashi Sakamoto buf, &len, ++eid); 6865cd1d3f4STakashi Sakamoto /* No entries remained. */ 6875cd1d3f4STakashi Sakamoto if (err == -EINVAL) { 6885cd1d3f4STakashi Sakamoto err = 0; 6895cd1d3f4STakashi Sakamoto break; 6905cd1d3f4STakashi Sakamoto } else if (err < 0) { 6915cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 6925cd1d3f4STakashi Sakamoto "fail to get stream format %d for isoc %s plug %d:%d\n", 6935cd1d3f4STakashi Sakamoto eid, (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : 6945cd1d3f4STakashi Sakamoto "out", 6955cd1d3f4STakashi Sakamoto pid, err); 6965cd1d3f4STakashi Sakamoto break; 6975cd1d3f4STakashi Sakamoto } 6985cd1d3f4STakashi Sakamoto } 6995cd1d3f4STakashi Sakamoto end: 7005cd1d3f4STakashi Sakamoto kfree(buf); 7015cd1d3f4STakashi Sakamoto return err; 7025cd1d3f4STakashi Sakamoto } 7035cd1d3f4STakashi Sakamoto 7045cd1d3f4STakashi Sakamoto int snd_oxfw_stream_discover(struct snd_oxfw *oxfw) 7055cd1d3f4STakashi Sakamoto { 7065cd1d3f4STakashi Sakamoto u8 plugs[AVC_PLUG_INFO_BUF_BYTES]; 70732056041STakashi Sakamoto struct snd_oxfw_stream_formation formation; 70832056041STakashi Sakamoto u8 *format; 70932056041STakashi Sakamoto unsigned int i; 7105cd1d3f4STakashi Sakamoto int err; 7115cd1d3f4STakashi Sakamoto 7125cd1d3f4STakashi Sakamoto /* the number of plugs for isoc in/out, ext in/out */ 7135cd1d3f4STakashi Sakamoto err = avc_general_get_plug_info(oxfw->unit, 0x1f, 0x07, 0x00, plugs); 7145cd1d3f4STakashi Sakamoto if (err < 0) { 7155cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 7165cd1d3f4STakashi Sakamoto "fail to get info for isoc/external in/out plugs: %d\n", 7175cd1d3f4STakashi Sakamoto err); 7185cd1d3f4STakashi Sakamoto goto end; 719b0ac0009STakashi Sakamoto } else if ((plugs[0] == 0) && (plugs[1] == 0)) { 72003be63b2STakashi Sakamoto err = -ENXIO; 7215cd1d3f4STakashi Sakamoto goto end; 7225cd1d3f4STakashi Sakamoto } 7235cd1d3f4STakashi Sakamoto 724b0ac0009STakashi Sakamoto /* use oPCR[0] if exists */ 725b0ac0009STakashi Sakamoto if (plugs[1] > 0) { 726b0ac0009STakashi Sakamoto err = fill_stream_formats(oxfw, AVC_GENERAL_PLUG_DIR_OUT, 0); 72741dbc792STakashi Sakamoto if (err < 0) { 72841dbc792STakashi Sakamoto if (err != -ENXIO) 72941dbc792STakashi Sakamoto return err; 73032056041STakashi Sakamoto 73141dbc792STakashi Sakamoto // The oPCR is not available for isoc communication. 73241dbc792STakashi Sakamoto err = 0; 73341dbc792STakashi Sakamoto } else { 73432056041STakashi Sakamoto for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 73532056041STakashi Sakamoto format = oxfw->tx_stream_formats[i]; 73632056041STakashi Sakamoto if (format == NULL) 73732056041STakashi Sakamoto continue; 73841dbc792STakashi Sakamoto err = snd_oxfw_stream_parse_format(format, 73941dbc792STakashi Sakamoto &formation); 74032056041STakashi Sakamoto if (err < 0) 74132056041STakashi Sakamoto continue; 74232056041STakashi Sakamoto 74332056041STakashi Sakamoto /* Add one MIDI port. */ 74432056041STakashi Sakamoto if (formation.midi > 0) 74532056041STakashi Sakamoto oxfw->midi_input_ports = 1; 74632056041STakashi Sakamoto } 74732056041STakashi Sakamoto 748b0ac0009STakashi Sakamoto oxfw->has_output = true; 749b0ac0009STakashi Sakamoto } 75041dbc792STakashi Sakamoto } 751b0ac0009STakashi Sakamoto 7525cd1d3f4STakashi Sakamoto /* use iPCR[0] if exists */ 75332056041STakashi Sakamoto if (plugs[0] > 0) { 7545cd1d3f4STakashi Sakamoto err = fill_stream_formats(oxfw, AVC_GENERAL_PLUG_DIR_IN, 0); 75541dbc792STakashi Sakamoto if (err < 0) { 75641dbc792STakashi Sakamoto if (err != -ENXIO) 75741dbc792STakashi Sakamoto return err; 75832056041STakashi Sakamoto 75941dbc792STakashi Sakamoto // The iPCR is not available for isoc communication. 76041dbc792STakashi Sakamoto err = 0; 76141dbc792STakashi Sakamoto } else { 76232056041STakashi Sakamoto for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 76332056041STakashi Sakamoto format = oxfw->rx_stream_formats[i]; 76432056041STakashi Sakamoto if (format == NULL) 76532056041STakashi Sakamoto continue; 76641dbc792STakashi Sakamoto err = snd_oxfw_stream_parse_format(format, 76741dbc792STakashi Sakamoto &formation); 76832056041STakashi Sakamoto if (err < 0) 76932056041STakashi Sakamoto continue; 77032056041STakashi Sakamoto 77132056041STakashi Sakamoto /* Add one MIDI port. */ 77232056041STakashi Sakamoto if (formation.midi > 0) 77332056041STakashi Sakamoto oxfw->midi_output_ports = 1; 77432056041STakashi Sakamoto } 77506a42a74STakashi Sakamoto 77606a42a74STakashi Sakamoto oxfw->has_input = true; 77732056041STakashi Sakamoto } 77841dbc792STakashi Sakamoto } 7795cd1d3f4STakashi Sakamoto end: 7805cd1d3f4STakashi Sakamoto return err; 7815cd1d3f4STakashi Sakamoto } 7828985f4acSTakashi Sakamoto 7838985f4acSTakashi Sakamoto void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw) 7848985f4acSTakashi Sakamoto { 7858985f4acSTakashi Sakamoto oxfw->dev_lock_changed = true; 7868985f4acSTakashi Sakamoto wake_up(&oxfw->hwdep_wait); 7878985f4acSTakashi Sakamoto } 7888985f4acSTakashi Sakamoto 7898985f4acSTakashi Sakamoto int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw) 7908985f4acSTakashi Sakamoto { 7918985f4acSTakashi Sakamoto int err; 7928985f4acSTakashi Sakamoto 7938985f4acSTakashi Sakamoto spin_lock_irq(&oxfw->lock); 7948985f4acSTakashi Sakamoto 7958985f4acSTakashi Sakamoto /* user land lock this */ 7968985f4acSTakashi Sakamoto if (oxfw->dev_lock_count < 0) { 7978985f4acSTakashi Sakamoto err = -EBUSY; 7988985f4acSTakashi Sakamoto goto end; 7998985f4acSTakashi Sakamoto } 8008985f4acSTakashi Sakamoto 8018985f4acSTakashi Sakamoto /* this is the first time */ 8028985f4acSTakashi Sakamoto if (oxfw->dev_lock_count++ == 0) 8038985f4acSTakashi Sakamoto snd_oxfw_stream_lock_changed(oxfw); 8048985f4acSTakashi Sakamoto err = 0; 8058985f4acSTakashi Sakamoto end: 8068985f4acSTakashi Sakamoto spin_unlock_irq(&oxfw->lock); 8078985f4acSTakashi Sakamoto return err; 8088985f4acSTakashi Sakamoto } 8098985f4acSTakashi Sakamoto 8108985f4acSTakashi Sakamoto void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw) 8118985f4acSTakashi Sakamoto { 8128985f4acSTakashi Sakamoto spin_lock_irq(&oxfw->lock); 8138985f4acSTakashi Sakamoto 8148985f4acSTakashi Sakamoto if (WARN_ON(oxfw->dev_lock_count <= 0)) 8158985f4acSTakashi Sakamoto goto end; 8168985f4acSTakashi Sakamoto if (--oxfw->dev_lock_count == 0) 8178985f4acSTakashi Sakamoto snd_oxfw_stream_lock_changed(oxfw); 8188985f4acSTakashi Sakamoto end: 8198985f4acSTakashi Sakamoto spin_unlock_irq(&oxfw->lock); 8208985f4acSTakashi Sakamoto } 821