1e2786ca6STakashi Sakamoto /* 2e2786ca6STakashi Sakamoto * oxfw_stream.c - a part of driver for OXFW970/971 based devices 3e2786ca6STakashi Sakamoto * 4e2786ca6STakashi Sakamoto * Copyright (c) 2014 Takashi Sakamoto 5e2786ca6STakashi Sakamoto * 6e2786ca6STakashi Sakamoto * Licensed under the terms of the GNU General Public License, version 2. 7e2786ca6STakashi Sakamoto */ 8e2786ca6STakashi Sakamoto 9e2786ca6STakashi Sakamoto #include "oxfw.h" 10f3699e2cSTakashi Sakamoto #include <linux/delay.h> 11e2786ca6STakashi Sakamoto 125cd1d3f4STakashi Sakamoto #define AVC_GENERIC_FRAME_MAXIMUM_BYTES 512 13f3699e2cSTakashi Sakamoto #define CALLBACK_TIMEOUT 200 145cd1d3f4STakashi Sakamoto 155cd1d3f4STakashi Sakamoto /* 165cd1d3f4STakashi Sakamoto * According to datasheet of Oxford Semiconductor: 175cd1d3f4STakashi Sakamoto * OXFW970: 32.0/44.1/48.0/96.0 Khz, 8 audio channels I/O 185cd1d3f4STakashi Sakamoto * OXFW971: 32.0/44.1/48.0/88.2/96.0/192.0 kHz, 16 audio channels I/O, MIDI I/O 195cd1d3f4STakashi Sakamoto */ 205cd1d3f4STakashi Sakamoto static const unsigned int oxfw_rate_table[] = { 215cd1d3f4STakashi Sakamoto [0] = 32000, 225cd1d3f4STakashi Sakamoto [1] = 44100, 235cd1d3f4STakashi Sakamoto [2] = 48000, 245cd1d3f4STakashi Sakamoto [3] = 88200, 255cd1d3f4STakashi Sakamoto [4] = 96000, 265cd1d3f4STakashi Sakamoto [5] = 192000, 275cd1d3f4STakashi Sakamoto }; 285cd1d3f4STakashi Sakamoto 295cd1d3f4STakashi Sakamoto /* 305cd1d3f4STakashi Sakamoto * See Table 5.7 – Sampling frequency for Multi-bit Audio 315cd1d3f4STakashi Sakamoto * in AV/C Stream Format Information Specification 1.1 (Apr 2005, 1394TA) 325cd1d3f4STakashi Sakamoto */ 335cd1d3f4STakashi Sakamoto static const unsigned int avc_stream_rate_table[] = { 345cd1d3f4STakashi Sakamoto [0] = 0x02, 355cd1d3f4STakashi Sakamoto [1] = 0x03, 365cd1d3f4STakashi Sakamoto [2] = 0x04, 375cd1d3f4STakashi Sakamoto [3] = 0x0a, 385cd1d3f4STakashi Sakamoto [4] = 0x05, 395cd1d3f4STakashi Sakamoto [5] = 0x07, 405cd1d3f4STakashi Sakamoto }; 415cd1d3f4STakashi Sakamoto 42b0ac0009STakashi Sakamoto static int set_rate(struct snd_oxfw *oxfw, unsigned int rate) 43b0ac0009STakashi Sakamoto { 44b0ac0009STakashi Sakamoto int err; 45b0ac0009STakashi Sakamoto 46b0ac0009STakashi Sakamoto err = avc_general_set_sig_fmt(oxfw->unit, rate, 47b0ac0009STakashi Sakamoto AVC_GENERAL_PLUG_DIR_IN, 0); 48b0ac0009STakashi Sakamoto if (err < 0) 49b0ac0009STakashi Sakamoto goto end; 50b0ac0009STakashi Sakamoto 51b0ac0009STakashi Sakamoto if (oxfw->has_output) 52b0ac0009STakashi Sakamoto err = avc_general_set_sig_fmt(oxfw->unit, rate, 53b0ac0009STakashi Sakamoto AVC_GENERAL_PLUG_DIR_OUT, 0); 54b0ac0009STakashi Sakamoto end: 55b0ac0009STakashi Sakamoto return err; 56b0ac0009STakashi Sakamoto } 57b0ac0009STakashi Sakamoto 58f3699e2cSTakashi Sakamoto static int set_stream_format(struct snd_oxfw *oxfw, struct amdtp_stream *s, 59f3699e2cSTakashi Sakamoto unsigned int rate, unsigned int pcm_channels) 60f3699e2cSTakashi Sakamoto { 61f3699e2cSTakashi Sakamoto u8 **formats; 62f3699e2cSTakashi Sakamoto struct snd_oxfw_stream_formation formation; 63f3699e2cSTakashi Sakamoto enum avc_general_plug_dir dir; 645580ba7bSDan Carpenter unsigned int len; 655580ba7bSDan Carpenter int i, err; 66f3699e2cSTakashi Sakamoto 67b0ac0009STakashi Sakamoto if (s == &oxfw->tx_stream) { 68b0ac0009STakashi Sakamoto formats = oxfw->tx_stream_formats; 69b0ac0009STakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_OUT; 70b0ac0009STakashi Sakamoto } else { 71f3699e2cSTakashi Sakamoto formats = oxfw->rx_stream_formats; 72f3699e2cSTakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_IN; 73b0ac0009STakashi Sakamoto } 74f3699e2cSTakashi Sakamoto 75f3699e2cSTakashi Sakamoto /* Seek stream format for requirements. */ 76f3699e2cSTakashi Sakamoto for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 77f3699e2cSTakashi Sakamoto err = snd_oxfw_stream_parse_format(formats[i], &formation); 78f3699e2cSTakashi Sakamoto if (err < 0) 79f3699e2cSTakashi Sakamoto return err; 80f3699e2cSTakashi Sakamoto 81f3699e2cSTakashi Sakamoto if ((formation.rate == rate) && (formation.pcm == pcm_channels)) 82f3699e2cSTakashi Sakamoto break; 83f3699e2cSTakashi Sakamoto } 84f3699e2cSTakashi Sakamoto if (i == SND_OXFW_STREAM_FORMAT_ENTRIES) 85f3699e2cSTakashi Sakamoto return -EINVAL; 86f3699e2cSTakashi Sakamoto 87f3699e2cSTakashi Sakamoto /* If assumed, just change rate. */ 88f3699e2cSTakashi Sakamoto if (oxfw->assumed) 89b0ac0009STakashi Sakamoto return set_rate(oxfw, rate); 90f3699e2cSTakashi Sakamoto 91f3699e2cSTakashi Sakamoto /* Calculate format length. */ 92f3699e2cSTakashi Sakamoto len = 5 + formats[i][4] * 2; 93f3699e2cSTakashi Sakamoto 94f3699e2cSTakashi Sakamoto err = avc_stream_set_format(oxfw->unit, dir, 0, formats[i], len); 95f3699e2cSTakashi Sakamoto if (err < 0) 96f3699e2cSTakashi Sakamoto return err; 97f3699e2cSTakashi Sakamoto 98f3699e2cSTakashi Sakamoto /* Some requests just after changing format causes freezing. */ 99f3699e2cSTakashi Sakamoto msleep(100); 100f3699e2cSTakashi Sakamoto 101f3699e2cSTakashi Sakamoto return 0; 102f3699e2cSTakashi Sakamoto } 103f3699e2cSTakashi Sakamoto 104521b2e11STakashi Sakamoto static int start_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream) 105e2786ca6STakashi Sakamoto { 106f3699e2cSTakashi Sakamoto struct cmp_connection *conn; 107f3699e2cSTakashi Sakamoto int err; 108f3699e2cSTakashi Sakamoto 1090356ce3aSTakashi Sakamoto if (stream == &oxfw->rx_stream) 110f3699e2cSTakashi Sakamoto conn = &oxfw->in_conn; 1110356ce3aSTakashi Sakamoto else 112b0ac0009STakashi Sakamoto conn = &oxfw->out_conn; 113f3699e2cSTakashi Sakamoto 114f3699e2cSTakashi Sakamoto err = cmp_connection_establish(conn, 115f3699e2cSTakashi Sakamoto amdtp_stream_get_max_payload(stream)); 116f3699e2cSTakashi Sakamoto if (err < 0) 117e34244ddSTakashi Sakamoto return err; 118f3699e2cSTakashi Sakamoto 119e34244ddSTakashi Sakamoto err = amdtp_stream_start(stream, conn->resources.channel, conn->speed); 120f3699e2cSTakashi Sakamoto if (err < 0) { 121f3699e2cSTakashi Sakamoto cmp_connection_break(conn); 122e34244ddSTakashi Sakamoto return err; 123f3699e2cSTakashi Sakamoto } 124f3699e2cSTakashi Sakamoto 125e34244ddSTakashi Sakamoto // Wait first packet. 126f2b14c0bSTakashi Sakamoto if (!amdtp_stream_wait_callback(stream, CALLBACK_TIMEOUT)) { 127e34244ddSTakashi Sakamoto amdtp_stream_stop(stream); 128e34244ddSTakashi Sakamoto cmp_connection_break(conn); 129e34244ddSTakashi Sakamoto return -ETIMEDOUT; 130f2b14c0bSTakashi Sakamoto } 131e34244ddSTakashi Sakamoto 132e34244ddSTakashi Sakamoto return 0; 133f3699e2cSTakashi Sakamoto } 134f3699e2cSTakashi Sakamoto 135b0ac0009STakashi Sakamoto static int check_connection_used_by_others(struct snd_oxfw *oxfw, 136b0ac0009STakashi Sakamoto struct amdtp_stream *stream) 137f3699e2cSTakashi Sakamoto { 138b0ac0009STakashi Sakamoto struct cmp_connection *conn; 139b0ac0009STakashi Sakamoto bool used; 140b0ac0009STakashi Sakamoto int err; 141b0ac0009STakashi Sakamoto 142b0ac0009STakashi Sakamoto if (stream == &oxfw->tx_stream) 143b0ac0009STakashi Sakamoto conn = &oxfw->out_conn; 144b0ac0009STakashi Sakamoto else 145b0ac0009STakashi Sakamoto conn = &oxfw->in_conn; 146b0ac0009STakashi Sakamoto 147b0ac0009STakashi Sakamoto err = cmp_connection_check_used(conn, &used); 148b0ac0009STakashi Sakamoto if ((err >= 0) && used && !amdtp_stream_running(stream)) { 149b0ac0009STakashi Sakamoto dev_err(&oxfw->unit->device, 150b0ac0009STakashi Sakamoto "Connection established by others: %cPCR[%d]\n", 151b0ac0009STakashi Sakamoto (conn->direction == CMP_OUTPUT) ? 'o' : 'i', 152b0ac0009STakashi Sakamoto conn->pcr_index); 153b0ac0009STakashi Sakamoto err = -EBUSY; 154b0ac0009STakashi Sakamoto } 155b0ac0009STakashi Sakamoto 156b0ac0009STakashi Sakamoto return err; 157b0ac0009STakashi Sakamoto } 158b0ac0009STakashi Sakamoto 159779f0dbaSTakashi Sakamoto static int init_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream) 160b0ac0009STakashi Sakamoto { 161b0ac0009STakashi Sakamoto struct cmp_connection *conn; 162b0ac0009STakashi Sakamoto enum cmp_direction c_dir; 163b0ac0009STakashi Sakamoto enum amdtp_stream_direction s_dir; 164b0ac0009STakashi Sakamoto int err; 165b0ac0009STakashi Sakamoto 166b0ac0009STakashi Sakamoto if (stream == &oxfw->tx_stream) { 167b0ac0009STakashi Sakamoto conn = &oxfw->out_conn; 168b0ac0009STakashi Sakamoto c_dir = CMP_OUTPUT; 169b0ac0009STakashi Sakamoto s_dir = AMDTP_IN_STREAM; 170b0ac0009STakashi Sakamoto } else { 171b0ac0009STakashi Sakamoto conn = &oxfw->in_conn; 172b0ac0009STakashi Sakamoto c_dir = CMP_INPUT; 173b0ac0009STakashi Sakamoto s_dir = AMDTP_OUT_STREAM; 174b0ac0009STakashi Sakamoto } 175b0ac0009STakashi Sakamoto 176b0ac0009STakashi Sakamoto err = cmp_connection_init(conn, oxfw->unit, c_dir, 0); 177b0ac0009STakashi Sakamoto if (err < 0) 178779f0dbaSTakashi Sakamoto return err; 179b0ac0009STakashi Sakamoto 1805955815eSTakashi Sakamoto err = amdtp_am824_init(stream, oxfw->unit, s_dir, CIP_NONBLOCKING); 181b0ac0009STakashi Sakamoto if (err < 0) { 182b0ac0009STakashi Sakamoto cmp_connection_destroy(conn); 183779f0dbaSTakashi Sakamoto return err; 184b0ac0009STakashi Sakamoto } 185b0ac0009STakashi Sakamoto 186a2064710STakashi Sakamoto /* 187a2064710STakashi Sakamoto * OXFW starts to transmit packets with non-zero dbc. 188a2064710STakashi Sakamoto * OXFW postpone transferring packets till handling any asynchronous 189a2064710STakashi Sakamoto * packets. As a result, next isochronous packet includes more data 190a2064710STakashi Sakamoto * blocks than IEC 61883-6 defines. 191a2064710STakashi Sakamoto */ 19213f3a46dSTakashi Sakamoto if (stream == &oxfw->tx_stream) { 19362f00e40STakashi Sakamoto oxfw->tx_stream.flags |= CIP_JUMBO_PAYLOAD; 19413f3a46dSTakashi Sakamoto if (oxfw->wrong_dbs) 19513f3a46dSTakashi Sakamoto oxfw->tx_stream.flags |= CIP_WRONG_DBS; 19613f3a46dSTakashi Sakamoto } 197779f0dbaSTakashi Sakamoto 198779f0dbaSTakashi Sakamoto return 0; 199b0ac0009STakashi Sakamoto } 200b0ac0009STakashi Sakamoto 2010356ce3aSTakashi Sakamoto static int keep_resources(struct snd_oxfw *oxfw, struct amdtp_stream *stream) 2020356ce3aSTakashi Sakamoto { 2030356ce3aSTakashi Sakamoto enum avc_general_plug_dir dir; 2040356ce3aSTakashi Sakamoto u8 **formats; 2050356ce3aSTakashi Sakamoto struct snd_oxfw_stream_formation formation; 2060356ce3aSTakashi Sakamoto int i; 2070356ce3aSTakashi Sakamoto int err; 2080356ce3aSTakashi Sakamoto 2090356ce3aSTakashi Sakamoto if (stream == &oxfw->rx_stream) { 2100356ce3aSTakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_IN; 2110356ce3aSTakashi Sakamoto formats = oxfw->rx_stream_formats; 2120356ce3aSTakashi Sakamoto } else { 2130356ce3aSTakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_OUT; 2140356ce3aSTakashi Sakamoto formats = oxfw->tx_stream_formats; 2150356ce3aSTakashi Sakamoto } 2160356ce3aSTakashi Sakamoto 2170356ce3aSTakashi Sakamoto err = snd_oxfw_stream_get_current_formation(oxfw, dir, &formation); 2180356ce3aSTakashi Sakamoto if (err < 0) 2190356ce3aSTakashi Sakamoto return err; 2200356ce3aSTakashi Sakamoto 2210356ce3aSTakashi Sakamoto for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 2220356ce3aSTakashi Sakamoto struct snd_oxfw_stream_formation fmt; 2230356ce3aSTakashi Sakamoto 2240356ce3aSTakashi Sakamoto if (formats[i] == NULL) 2250356ce3aSTakashi Sakamoto break; 2260356ce3aSTakashi Sakamoto 2270356ce3aSTakashi Sakamoto err = snd_oxfw_stream_parse_format(formats[i], &fmt); 2280356ce3aSTakashi Sakamoto if (err < 0) 2290356ce3aSTakashi Sakamoto return err; 2300356ce3aSTakashi Sakamoto 2310356ce3aSTakashi Sakamoto if (fmt.rate == formation.rate && fmt.pcm == formation.pcm && 2320356ce3aSTakashi Sakamoto fmt.midi == formation.midi) 2330356ce3aSTakashi Sakamoto break; 2340356ce3aSTakashi Sakamoto } 2350356ce3aSTakashi Sakamoto if (i == SND_OXFW_STREAM_FORMAT_ENTRIES) 2360356ce3aSTakashi Sakamoto return -EINVAL; 2370356ce3aSTakashi Sakamoto 2380356ce3aSTakashi Sakamoto // The stream should have one pcm channels at least. 2390356ce3aSTakashi Sakamoto if (formation.pcm == 0) 2400356ce3aSTakashi Sakamoto return -EINVAL; 2410356ce3aSTakashi Sakamoto 2420356ce3aSTakashi Sakamoto return amdtp_am824_set_parameters(stream, formation.rate, formation.pcm, 2430356ce3aSTakashi Sakamoto formation.midi * 8, false); 2440356ce3aSTakashi Sakamoto } 2450356ce3aSTakashi Sakamoto 2464f380d00STakashi Sakamoto int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw, 247b0ac0009STakashi Sakamoto struct amdtp_stream *stream, 248b0ac0009STakashi Sakamoto unsigned int rate, unsigned int pcm_channels) 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) { 278e34244ddSTakashi Sakamoto amdtp_stream_stop(&oxfw->rx_stream); 279e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 280e34244ddSTakashi Sakamoto 281e34244ddSTakashi Sakamoto if (oxfw->has_output) { 282e34244ddSTakashi Sakamoto amdtp_stream_stop(&oxfw->tx_stream); 283e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 284e34244ddSTakashi Sakamoto } 2854f380d00STakashi Sakamoto } 286f3699e2cSTakashi Sakamoto 2874f380d00STakashi Sakamoto if (oxfw->substreams_count == 0 || 2884f380d00STakashi Sakamoto formation.rate != rate || formation.pcm != pcm_channels) { 289b0ac0009STakashi Sakamoto err = set_stream_format(oxfw, stream, rate, pcm_channels); 290f3699e2cSTakashi Sakamoto if (err < 0) { 291f3699e2cSTakashi Sakamoto dev_err(&oxfw->unit->device, 292f3699e2cSTakashi Sakamoto "fail to set stream format: %d\n", err); 29320358d44STakashi Sakamoto return err; 29420358d44STakashi Sakamoto } 2950356ce3aSTakashi Sakamoto 2960356ce3aSTakashi Sakamoto err = keep_resources(oxfw, &oxfw->rx_stream); 2970356ce3aSTakashi Sakamoto if (err < 0) 2980356ce3aSTakashi Sakamoto return err; 2990356ce3aSTakashi Sakamoto 3000356ce3aSTakashi Sakamoto if (oxfw->has_output) { 3010356ce3aSTakashi Sakamoto err = keep_resources(oxfw, &oxfw->tx_stream); 3020356ce3aSTakashi Sakamoto if (err < 0) 3030356ce3aSTakashi Sakamoto return err; 3040356ce3aSTakashi Sakamoto } 305f3699e2cSTakashi Sakamoto } 306b0ac0009STakashi Sakamoto 3074f380d00STakashi Sakamoto return 0; 3084f380d00STakashi Sakamoto } 3094f380d00STakashi Sakamoto 3104f380d00STakashi Sakamoto int snd_oxfw_stream_start_duplex(struct snd_oxfw *oxfw) 3114f380d00STakashi Sakamoto { 3124f380d00STakashi Sakamoto int err; 3134f380d00STakashi Sakamoto 3144f380d00STakashi Sakamoto if (oxfw->substreams_count == 0) 3154f380d00STakashi Sakamoto return -EIO; 3164f380d00STakashi Sakamoto 3174f380d00STakashi Sakamoto if (amdtp_streaming_error(&oxfw->rx_stream) || 3184f380d00STakashi Sakamoto amdtp_streaming_error(&oxfw->tx_stream)) { 3194f380d00STakashi Sakamoto amdtp_stream_stop(&oxfw->rx_stream); 3204f380d00STakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 3214f380d00STakashi Sakamoto 3224f380d00STakashi Sakamoto if (oxfw->has_output) { 3234f380d00STakashi Sakamoto amdtp_stream_stop(&oxfw->tx_stream); 3244f380d00STakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 3254f380d00STakashi Sakamoto } 3264f380d00STakashi Sakamoto } 3274f380d00STakashi Sakamoto 32820358d44STakashi Sakamoto if (!amdtp_stream_running(&oxfw->rx_stream)) { 32920358d44STakashi Sakamoto err = start_stream(oxfw, &oxfw->rx_stream); 330b0ac0009STakashi Sakamoto if (err < 0) { 331b0ac0009STakashi Sakamoto dev_err(&oxfw->unit->device, 33220358d44STakashi Sakamoto "fail to start rx stream: %d\n", err); 33320358d44STakashi Sakamoto goto error; 33420358d44STakashi Sakamoto } 33520358d44STakashi Sakamoto } 33620358d44STakashi Sakamoto 33720358d44STakashi Sakamoto if (oxfw->has_output) { 33820358d44STakashi Sakamoto if (!amdtp_stream_running(&oxfw->tx_stream)) { 33920358d44STakashi Sakamoto err = start_stream(oxfw, &oxfw->tx_stream); 34020358d44STakashi Sakamoto if (err < 0) { 34120358d44STakashi Sakamoto dev_err(&oxfw->unit->device, 34220358d44STakashi Sakamoto "fail to start tx stream: %d\n", err); 34320358d44STakashi Sakamoto goto error; 344b0ac0009STakashi Sakamoto } 345b0ac0009STakashi Sakamoto } 346f3699e2cSTakashi Sakamoto } 347f3699e2cSTakashi Sakamoto 34820358d44STakashi Sakamoto return 0; 34920358d44STakashi Sakamoto error: 350e34244ddSTakashi Sakamoto amdtp_stream_stop(&oxfw->rx_stream); 35120358d44STakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 35220358d44STakashi Sakamoto if (oxfw->has_output) { 353e34244ddSTakashi Sakamoto amdtp_stream_stop(&oxfw->tx_stream); 35420358d44STakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 355b0ac0009STakashi Sakamoto } 356e2786ca6STakashi Sakamoto return err; 357e2786ca6STakashi Sakamoto } 358e2786ca6STakashi Sakamoto 359779f0dbaSTakashi Sakamoto void snd_oxfw_stream_stop_duplex(struct snd_oxfw *oxfw) 360e2786ca6STakashi Sakamoto { 3614a0a0472STakashi Sakamoto if (oxfw->substreams_count == 0) { 362e34244ddSTakashi Sakamoto amdtp_stream_stop(&oxfw->rx_stream); 363e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 364b0ac0009STakashi Sakamoto 365e34244ddSTakashi Sakamoto if (oxfw->has_output) { 366e34244ddSTakashi Sakamoto amdtp_stream_stop(&oxfw->tx_stream); 367e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 368e34244ddSTakashi Sakamoto } 36920358d44STakashi Sakamoto } 370e2786ca6STakashi Sakamoto } 371e2786ca6STakashi Sakamoto 372779f0dbaSTakashi Sakamoto static void destroy_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream) 373e2786ca6STakashi Sakamoto { 374b0ac0009STakashi Sakamoto struct cmp_connection *conn; 375e2786ca6STakashi Sakamoto 376b0ac0009STakashi Sakamoto if (stream == &oxfw->tx_stream) 377b0ac0009STakashi Sakamoto conn = &oxfw->out_conn; 378e2786ca6STakashi Sakamoto else 379b0ac0009STakashi Sakamoto conn = &oxfw->in_conn; 380b0ac0009STakashi Sakamoto 381b0ac0009STakashi Sakamoto amdtp_stream_destroy(stream); 382b0ac0009STakashi Sakamoto cmp_connection_destroy(conn); 383b0ac0009STakashi Sakamoto } 384b0ac0009STakashi Sakamoto 385779f0dbaSTakashi Sakamoto int snd_oxfw_stream_init_duplex(struct snd_oxfw *oxfw) 386779f0dbaSTakashi Sakamoto { 387779f0dbaSTakashi Sakamoto int err; 388779f0dbaSTakashi Sakamoto 389779f0dbaSTakashi Sakamoto err = init_stream(oxfw, &oxfw->rx_stream); 390779f0dbaSTakashi Sakamoto if (err < 0) 391779f0dbaSTakashi Sakamoto return err; 392779f0dbaSTakashi Sakamoto 393779f0dbaSTakashi Sakamoto if (oxfw->has_output) { 394779f0dbaSTakashi Sakamoto err = init_stream(oxfw, &oxfw->tx_stream); 395779f0dbaSTakashi Sakamoto if (err < 0) { 396779f0dbaSTakashi Sakamoto destroy_stream(oxfw, &oxfw->rx_stream); 397779f0dbaSTakashi Sakamoto return err; 398779f0dbaSTakashi Sakamoto } 399779f0dbaSTakashi Sakamoto } 400779f0dbaSTakashi Sakamoto 401779f0dbaSTakashi Sakamoto return 0; 402779f0dbaSTakashi Sakamoto } 403779f0dbaSTakashi Sakamoto 404779f0dbaSTakashi Sakamoto // This function should be called before starting the stream or after stopping 405779f0dbaSTakashi Sakamoto // the streams. 406779f0dbaSTakashi Sakamoto void snd_oxfw_stream_destroy_duplex(struct snd_oxfw *oxfw) 407779f0dbaSTakashi Sakamoto { 408779f0dbaSTakashi Sakamoto destroy_stream(oxfw, &oxfw->rx_stream); 409779f0dbaSTakashi Sakamoto 410779f0dbaSTakashi Sakamoto if (oxfw->has_output) 411779f0dbaSTakashi Sakamoto destroy_stream(oxfw, &oxfw->tx_stream); 412779f0dbaSTakashi Sakamoto } 413779f0dbaSTakashi Sakamoto 414779f0dbaSTakashi Sakamoto void snd_oxfw_stream_update_duplex(struct snd_oxfw *oxfw) 415b0ac0009STakashi Sakamoto { 416e34244ddSTakashi Sakamoto amdtp_stream_stop(&oxfw->rx_stream); 417e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 418b0ac0009STakashi Sakamoto 419e34244ddSTakashi Sakamoto amdtp_stream_pcm_abort(&oxfw->rx_stream); 420e34244ddSTakashi Sakamoto 421e34244ddSTakashi Sakamoto if (oxfw->has_output) { 422e34244ddSTakashi Sakamoto amdtp_stream_stop(&oxfw->tx_stream); 423e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 424e34244ddSTakashi Sakamoto 425e34244ddSTakashi Sakamoto amdtp_stream_pcm_abort(&oxfw->tx_stream); 426e34244ddSTakashi Sakamoto } 427e2786ca6STakashi Sakamoto } 4285cd1d3f4STakashi Sakamoto 4293c96101fSTakashi Sakamoto int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw, 4303c96101fSTakashi Sakamoto enum avc_general_plug_dir dir, 4313c96101fSTakashi Sakamoto struct snd_oxfw_stream_formation *formation) 4323c96101fSTakashi Sakamoto { 4333c96101fSTakashi Sakamoto u8 *format; 4343c96101fSTakashi Sakamoto unsigned int len; 4353c96101fSTakashi Sakamoto int err; 4363c96101fSTakashi Sakamoto 4373c96101fSTakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 4383c96101fSTakashi Sakamoto format = kmalloc(len, GFP_KERNEL); 4393c96101fSTakashi Sakamoto if (format == NULL) 4403c96101fSTakashi Sakamoto return -ENOMEM; 4413c96101fSTakashi Sakamoto 4423c96101fSTakashi Sakamoto err = avc_stream_get_format_single(oxfw->unit, dir, 0, format, &len); 4433c96101fSTakashi Sakamoto if (err < 0) 4443c96101fSTakashi Sakamoto goto end; 4453c96101fSTakashi Sakamoto if (len < 3) { 4463c96101fSTakashi Sakamoto err = -EIO; 4473c96101fSTakashi Sakamoto goto end; 4483c96101fSTakashi Sakamoto } 4493c96101fSTakashi Sakamoto 4503c96101fSTakashi Sakamoto err = snd_oxfw_stream_parse_format(format, formation); 4513c96101fSTakashi Sakamoto end: 4523c96101fSTakashi Sakamoto kfree(format); 4533c96101fSTakashi Sakamoto return err; 4543c96101fSTakashi Sakamoto } 4553c96101fSTakashi Sakamoto 4565cd1d3f4STakashi Sakamoto /* 4575cd1d3f4STakashi Sakamoto * See Table 6.16 - AM824 Stream Format 4585cd1d3f4STakashi Sakamoto * Figure 6.19 - format_information field for AM824 Compound 4595cd1d3f4STakashi Sakamoto * in AV/C Stream Format Information Specification 1.1 (Apr 2005, 1394TA) 4605cd1d3f4STakashi Sakamoto * Also 'Clause 12 AM824 sequence adaption layers' in IEC 61883-6:2005 4615cd1d3f4STakashi Sakamoto */ 4625cd1d3f4STakashi Sakamoto int snd_oxfw_stream_parse_format(u8 *format, 4635cd1d3f4STakashi Sakamoto struct snd_oxfw_stream_formation *formation) 4645cd1d3f4STakashi Sakamoto { 4655cd1d3f4STakashi Sakamoto unsigned int i, e, channels, type; 4665cd1d3f4STakashi Sakamoto 4675cd1d3f4STakashi Sakamoto memset(formation, 0, sizeof(struct snd_oxfw_stream_formation)); 4685cd1d3f4STakashi Sakamoto 4695cd1d3f4STakashi Sakamoto /* 4705cd1d3f4STakashi Sakamoto * this module can support a hierarchy combination that: 4715cd1d3f4STakashi Sakamoto * Root: Audio and Music (0x90) 4725cd1d3f4STakashi Sakamoto * Level 1: AM824 Compound (0x40) 4735cd1d3f4STakashi Sakamoto */ 4745cd1d3f4STakashi Sakamoto if ((format[0] != 0x90) || (format[1] != 0x40)) 4755cd1d3f4STakashi Sakamoto return -ENOSYS; 4765cd1d3f4STakashi Sakamoto 4775cd1d3f4STakashi Sakamoto /* check the sampling rate */ 4785cd1d3f4STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(avc_stream_rate_table); i++) { 4795cd1d3f4STakashi Sakamoto if (format[2] == avc_stream_rate_table[i]) 4805cd1d3f4STakashi Sakamoto break; 4815cd1d3f4STakashi Sakamoto } 4825cd1d3f4STakashi Sakamoto if (i == ARRAY_SIZE(avc_stream_rate_table)) 4835cd1d3f4STakashi Sakamoto return -ENOSYS; 4845cd1d3f4STakashi Sakamoto 4855cd1d3f4STakashi Sakamoto formation->rate = oxfw_rate_table[i]; 4865cd1d3f4STakashi Sakamoto 4875cd1d3f4STakashi Sakamoto for (e = 0; e < format[4]; e++) { 4885cd1d3f4STakashi Sakamoto channels = format[5 + e * 2]; 4895cd1d3f4STakashi Sakamoto type = format[6 + e * 2]; 4905cd1d3f4STakashi Sakamoto 4915cd1d3f4STakashi Sakamoto switch (type) { 4925cd1d3f4STakashi Sakamoto /* IEC 60958 Conformant, currently handled as MBLA */ 4935cd1d3f4STakashi Sakamoto case 0x00: 4945cd1d3f4STakashi Sakamoto /* Multi Bit Linear Audio (Raw) */ 4955cd1d3f4STakashi Sakamoto case 0x06: 4965cd1d3f4STakashi Sakamoto formation->pcm += channels; 4975cd1d3f4STakashi Sakamoto break; 4985cd1d3f4STakashi Sakamoto /* MIDI Conformant */ 4995cd1d3f4STakashi Sakamoto case 0x0d: 5005cd1d3f4STakashi Sakamoto formation->midi = channels; 5015cd1d3f4STakashi Sakamoto break; 5025cd1d3f4STakashi Sakamoto /* IEC 61937-3 to 7 */ 5035cd1d3f4STakashi Sakamoto case 0x01: 5045cd1d3f4STakashi Sakamoto case 0x02: 5055cd1d3f4STakashi Sakamoto case 0x03: 5065cd1d3f4STakashi Sakamoto case 0x04: 5075cd1d3f4STakashi Sakamoto case 0x05: 5085cd1d3f4STakashi Sakamoto /* Multi Bit Linear Audio */ 5095cd1d3f4STakashi Sakamoto case 0x07: /* DVD-Audio */ 5105cd1d3f4STakashi Sakamoto case 0x0c: /* High Precision */ 5115cd1d3f4STakashi Sakamoto /* One Bit Audio */ 5125cd1d3f4STakashi Sakamoto case 0x08: /* (Plain) Raw */ 5135cd1d3f4STakashi Sakamoto case 0x09: /* (Plain) SACD */ 5145cd1d3f4STakashi Sakamoto case 0x0a: /* (Encoded) Raw */ 5155cd1d3f4STakashi Sakamoto case 0x0b: /* (Encoded) SACD */ 5165cd1d3f4STakashi Sakamoto /* SMPTE Time-Code conformant */ 5175cd1d3f4STakashi Sakamoto case 0x0e: 5185cd1d3f4STakashi Sakamoto /* Sample Count */ 5195cd1d3f4STakashi Sakamoto case 0x0f: 5205cd1d3f4STakashi Sakamoto /* Anciliary Data */ 5215cd1d3f4STakashi Sakamoto case 0x10: 5225cd1d3f4STakashi Sakamoto /* Synchronization Stream (Stereo Raw audio) */ 5235cd1d3f4STakashi Sakamoto case 0x40: 5245cd1d3f4STakashi Sakamoto /* Don't care */ 5255cd1d3f4STakashi Sakamoto case 0xff: 5265cd1d3f4STakashi Sakamoto default: 5275cd1d3f4STakashi Sakamoto return -ENOSYS; /* not supported */ 5285cd1d3f4STakashi Sakamoto } 5295cd1d3f4STakashi Sakamoto } 5305cd1d3f4STakashi Sakamoto 53149c7b3fcSTakashi Sakamoto if (formation->pcm > AM824_MAX_CHANNELS_FOR_PCM || 53249c7b3fcSTakashi Sakamoto formation->midi > AM824_MAX_CHANNELS_FOR_MIDI) 5335cd1d3f4STakashi Sakamoto return -ENOSYS; 5345cd1d3f4STakashi Sakamoto 5355cd1d3f4STakashi Sakamoto return 0; 5365cd1d3f4STakashi Sakamoto } 5375cd1d3f4STakashi Sakamoto 5385cd1d3f4STakashi Sakamoto static int 5395cd1d3f4STakashi Sakamoto assume_stream_formats(struct snd_oxfw *oxfw, enum avc_general_plug_dir dir, 5405cd1d3f4STakashi Sakamoto unsigned int pid, u8 *buf, unsigned int *len, 5415cd1d3f4STakashi Sakamoto u8 **formats) 5425cd1d3f4STakashi Sakamoto { 5435cd1d3f4STakashi Sakamoto struct snd_oxfw_stream_formation formation; 5445cd1d3f4STakashi Sakamoto unsigned int i, eid; 5455cd1d3f4STakashi Sakamoto int err; 5465cd1d3f4STakashi Sakamoto 5475cd1d3f4STakashi Sakamoto /* get format at current sampling rate */ 5485cd1d3f4STakashi Sakamoto err = avc_stream_get_format_single(oxfw->unit, dir, pid, buf, len); 5495cd1d3f4STakashi Sakamoto if (err < 0) { 5505cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 5515cd1d3f4STakashi Sakamoto "fail to get current stream format for isoc %s plug %d:%d\n", 5525cd1d3f4STakashi Sakamoto (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : "out", 5535cd1d3f4STakashi Sakamoto pid, err); 5545cd1d3f4STakashi Sakamoto goto end; 5555cd1d3f4STakashi Sakamoto } 5565cd1d3f4STakashi Sakamoto 5575cd1d3f4STakashi Sakamoto /* parse and set stream format */ 5585cd1d3f4STakashi Sakamoto eid = 0; 5595cd1d3f4STakashi Sakamoto err = snd_oxfw_stream_parse_format(buf, &formation); 5605cd1d3f4STakashi Sakamoto if (err < 0) 5615cd1d3f4STakashi Sakamoto goto end; 5625cd1d3f4STakashi Sakamoto 563cd3b7116STakashi Sakamoto formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, *len, 564cd3b7116STakashi Sakamoto GFP_KERNEL); 565cd3b7116STakashi Sakamoto if (!formats[eid]) { 5665cd1d3f4STakashi Sakamoto err = -ENOMEM; 5675cd1d3f4STakashi Sakamoto goto end; 5685cd1d3f4STakashi Sakamoto } 5695cd1d3f4STakashi Sakamoto 5705cd1d3f4STakashi Sakamoto /* apply the format for each available sampling rate */ 5715cd1d3f4STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(oxfw_rate_table); i++) { 5725cd1d3f4STakashi Sakamoto if (formation.rate == oxfw_rate_table[i]) 5735cd1d3f4STakashi Sakamoto continue; 5745cd1d3f4STakashi Sakamoto 5755cd1d3f4STakashi Sakamoto err = avc_general_inquiry_sig_fmt(oxfw->unit, 5765cd1d3f4STakashi Sakamoto oxfw_rate_table[i], 5775cd1d3f4STakashi Sakamoto dir, pid); 5785cd1d3f4STakashi Sakamoto if (err < 0) 5795cd1d3f4STakashi Sakamoto continue; 5805cd1d3f4STakashi Sakamoto 5815cd1d3f4STakashi Sakamoto eid++; 582cd3b7116STakashi Sakamoto formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, *len, 583cd3b7116STakashi Sakamoto GFP_KERNEL); 5845cd1d3f4STakashi Sakamoto if (formats[eid] == NULL) { 5855cd1d3f4STakashi Sakamoto err = -ENOMEM; 5865cd1d3f4STakashi Sakamoto goto end; 5875cd1d3f4STakashi Sakamoto } 5885cd1d3f4STakashi Sakamoto formats[eid][2] = avc_stream_rate_table[i]; 5895cd1d3f4STakashi Sakamoto } 5905cd1d3f4STakashi Sakamoto 5915cd1d3f4STakashi Sakamoto err = 0; 5925cd1d3f4STakashi Sakamoto oxfw->assumed = true; 5935cd1d3f4STakashi Sakamoto end: 5945cd1d3f4STakashi Sakamoto return err; 5955cd1d3f4STakashi Sakamoto } 5965cd1d3f4STakashi Sakamoto 5975cd1d3f4STakashi Sakamoto static int fill_stream_formats(struct snd_oxfw *oxfw, 5985cd1d3f4STakashi Sakamoto enum avc_general_plug_dir dir, 5995cd1d3f4STakashi Sakamoto unsigned short pid) 6005cd1d3f4STakashi Sakamoto { 6015cd1d3f4STakashi Sakamoto u8 *buf, **formats; 6025cd1d3f4STakashi Sakamoto unsigned int len, eid = 0; 6035cd1d3f4STakashi Sakamoto struct snd_oxfw_stream_formation dummy; 6045cd1d3f4STakashi Sakamoto int err; 6055cd1d3f4STakashi Sakamoto 6065cd1d3f4STakashi Sakamoto buf = kmalloc(AVC_GENERIC_FRAME_MAXIMUM_BYTES, GFP_KERNEL); 6075cd1d3f4STakashi Sakamoto if (buf == NULL) 6085cd1d3f4STakashi Sakamoto return -ENOMEM; 6095cd1d3f4STakashi Sakamoto 610b0ac0009STakashi Sakamoto if (dir == AVC_GENERAL_PLUG_DIR_OUT) 611b0ac0009STakashi Sakamoto formats = oxfw->tx_stream_formats; 612b0ac0009STakashi Sakamoto else 6135cd1d3f4STakashi Sakamoto formats = oxfw->rx_stream_formats; 6145cd1d3f4STakashi Sakamoto 6155cd1d3f4STakashi Sakamoto /* get first entry */ 6165cd1d3f4STakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 6175cd1d3f4STakashi Sakamoto err = avc_stream_get_format_list(oxfw->unit, dir, 0, buf, &len, 0); 6185cd1d3f4STakashi Sakamoto if (err == -ENOSYS) { 6195cd1d3f4STakashi Sakamoto /* LIST subfunction is not implemented */ 6205cd1d3f4STakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 6215cd1d3f4STakashi Sakamoto err = assume_stream_formats(oxfw, dir, pid, buf, &len, 6225cd1d3f4STakashi Sakamoto formats); 6235cd1d3f4STakashi Sakamoto goto end; 6245cd1d3f4STakashi Sakamoto } else if (err < 0) { 6255cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 6265cd1d3f4STakashi Sakamoto "fail to get stream format %d for isoc %s plug %d:%d\n", 6275cd1d3f4STakashi Sakamoto eid, (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : "out", 6285cd1d3f4STakashi Sakamoto pid, err); 6295cd1d3f4STakashi Sakamoto goto end; 6305cd1d3f4STakashi Sakamoto } 6315cd1d3f4STakashi Sakamoto 6325cd1d3f4STakashi Sakamoto /* LIST subfunction is implemented */ 6335cd1d3f4STakashi Sakamoto while (eid < SND_OXFW_STREAM_FORMAT_ENTRIES) { 6345cd1d3f4STakashi Sakamoto /* The format is too short. */ 6355cd1d3f4STakashi Sakamoto if (len < 3) { 6365cd1d3f4STakashi Sakamoto err = -EIO; 6375cd1d3f4STakashi Sakamoto break; 6385cd1d3f4STakashi Sakamoto } 6395cd1d3f4STakashi Sakamoto 6405cd1d3f4STakashi Sakamoto /* parse and set stream format */ 6415cd1d3f4STakashi Sakamoto err = snd_oxfw_stream_parse_format(buf, &dummy); 6425cd1d3f4STakashi Sakamoto if (err < 0) 6435cd1d3f4STakashi Sakamoto break; 6445cd1d3f4STakashi Sakamoto 645cd3b7116STakashi Sakamoto formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, len, 646cd3b7116STakashi Sakamoto GFP_KERNEL); 647cd3b7116STakashi Sakamoto if (!formats[eid]) { 6485cd1d3f4STakashi Sakamoto err = -ENOMEM; 6495cd1d3f4STakashi Sakamoto break; 6505cd1d3f4STakashi Sakamoto } 6515cd1d3f4STakashi Sakamoto 6525cd1d3f4STakashi Sakamoto /* get next entry */ 6535cd1d3f4STakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 6545cd1d3f4STakashi Sakamoto err = avc_stream_get_format_list(oxfw->unit, dir, 0, 6555cd1d3f4STakashi Sakamoto buf, &len, ++eid); 6565cd1d3f4STakashi Sakamoto /* No entries remained. */ 6575cd1d3f4STakashi Sakamoto if (err == -EINVAL) { 6585cd1d3f4STakashi Sakamoto err = 0; 6595cd1d3f4STakashi Sakamoto break; 6605cd1d3f4STakashi Sakamoto } else if (err < 0) { 6615cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 6625cd1d3f4STakashi Sakamoto "fail to get stream format %d for isoc %s plug %d:%d\n", 6635cd1d3f4STakashi Sakamoto eid, (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : 6645cd1d3f4STakashi Sakamoto "out", 6655cd1d3f4STakashi Sakamoto pid, err); 6665cd1d3f4STakashi Sakamoto break; 6675cd1d3f4STakashi Sakamoto } 6685cd1d3f4STakashi Sakamoto } 6695cd1d3f4STakashi Sakamoto end: 6705cd1d3f4STakashi Sakamoto kfree(buf); 6715cd1d3f4STakashi Sakamoto return err; 6725cd1d3f4STakashi Sakamoto } 6735cd1d3f4STakashi Sakamoto 6745cd1d3f4STakashi Sakamoto int snd_oxfw_stream_discover(struct snd_oxfw *oxfw) 6755cd1d3f4STakashi Sakamoto { 6765cd1d3f4STakashi Sakamoto u8 plugs[AVC_PLUG_INFO_BUF_BYTES]; 67732056041STakashi Sakamoto struct snd_oxfw_stream_formation formation; 67832056041STakashi Sakamoto u8 *format; 67932056041STakashi Sakamoto unsigned int i; 6805cd1d3f4STakashi Sakamoto int err; 6815cd1d3f4STakashi Sakamoto 6825cd1d3f4STakashi Sakamoto /* the number of plugs for isoc in/out, ext in/out */ 6835cd1d3f4STakashi Sakamoto err = avc_general_get_plug_info(oxfw->unit, 0x1f, 0x07, 0x00, plugs); 6845cd1d3f4STakashi Sakamoto if (err < 0) { 6855cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 6865cd1d3f4STakashi Sakamoto "fail to get info for isoc/external in/out plugs: %d\n", 6875cd1d3f4STakashi Sakamoto err); 6885cd1d3f4STakashi Sakamoto goto end; 689b0ac0009STakashi Sakamoto } else if ((plugs[0] == 0) && (plugs[1] == 0)) { 6905cd1d3f4STakashi Sakamoto err = -ENOSYS; 6915cd1d3f4STakashi Sakamoto goto end; 6925cd1d3f4STakashi Sakamoto } 6935cd1d3f4STakashi Sakamoto 694b0ac0009STakashi Sakamoto /* use oPCR[0] if exists */ 695b0ac0009STakashi Sakamoto if (plugs[1] > 0) { 696b0ac0009STakashi Sakamoto err = fill_stream_formats(oxfw, AVC_GENERAL_PLUG_DIR_OUT, 0); 697b0ac0009STakashi Sakamoto if (err < 0) 698b0ac0009STakashi Sakamoto goto end; 69932056041STakashi Sakamoto 70032056041STakashi Sakamoto for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 70132056041STakashi Sakamoto format = oxfw->tx_stream_formats[i]; 70232056041STakashi Sakamoto if (format == NULL) 70332056041STakashi Sakamoto continue; 70432056041STakashi Sakamoto err = snd_oxfw_stream_parse_format(format, &formation); 70532056041STakashi Sakamoto if (err < 0) 70632056041STakashi Sakamoto continue; 70732056041STakashi Sakamoto 70832056041STakashi Sakamoto /* Add one MIDI port. */ 70932056041STakashi Sakamoto if (formation.midi > 0) 71032056041STakashi Sakamoto oxfw->midi_input_ports = 1; 71132056041STakashi Sakamoto } 71232056041STakashi Sakamoto 713b0ac0009STakashi Sakamoto oxfw->has_output = true; 714b0ac0009STakashi Sakamoto } 715b0ac0009STakashi Sakamoto 7165cd1d3f4STakashi Sakamoto /* use iPCR[0] if exists */ 71732056041STakashi Sakamoto if (plugs[0] > 0) { 7185cd1d3f4STakashi Sakamoto err = fill_stream_formats(oxfw, AVC_GENERAL_PLUG_DIR_IN, 0); 71932056041STakashi Sakamoto if (err < 0) 72032056041STakashi Sakamoto goto end; 72132056041STakashi Sakamoto 72232056041STakashi Sakamoto for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 72332056041STakashi Sakamoto format = oxfw->rx_stream_formats[i]; 72432056041STakashi Sakamoto if (format == NULL) 72532056041STakashi Sakamoto continue; 72632056041STakashi Sakamoto err = snd_oxfw_stream_parse_format(format, &formation); 72732056041STakashi Sakamoto if (err < 0) 72832056041STakashi Sakamoto continue; 72932056041STakashi Sakamoto 73032056041STakashi Sakamoto /* Add one MIDI port. */ 73132056041STakashi Sakamoto if (formation.midi > 0) 73232056041STakashi Sakamoto oxfw->midi_output_ports = 1; 73332056041STakashi Sakamoto } 73432056041STakashi Sakamoto } 7355cd1d3f4STakashi Sakamoto end: 7365cd1d3f4STakashi Sakamoto return err; 7375cd1d3f4STakashi Sakamoto } 7388985f4acSTakashi Sakamoto 7398985f4acSTakashi Sakamoto void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw) 7408985f4acSTakashi Sakamoto { 7418985f4acSTakashi Sakamoto oxfw->dev_lock_changed = true; 7428985f4acSTakashi Sakamoto wake_up(&oxfw->hwdep_wait); 7438985f4acSTakashi Sakamoto } 7448985f4acSTakashi Sakamoto 7458985f4acSTakashi Sakamoto int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw) 7468985f4acSTakashi Sakamoto { 7478985f4acSTakashi Sakamoto int err; 7488985f4acSTakashi Sakamoto 7498985f4acSTakashi Sakamoto spin_lock_irq(&oxfw->lock); 7508985f4acSTakashi Sakamoto 7518985f4acSTakashi Sakamoto /* user land lock this */ 7528985f4acSTakashi Sakamoto if (oxfw->dev_lock_count < 0) { 7538985f4acSTakashi Sakamoto err = -EBUSY; 7548985f4acSTakashi Sakamoto goto end; 7558985f4acSTakashi Sakamoto } 7568985f4acSTakashi Sakamoto 7578985f4acSTakashi Sakamoto /* this is the first time */ 7588985f4acSTakashi Sakamoto if (oxfw->dev_lock_count++ == 0) 7598985f4acSTakashi Sakamoto snd_oxfw_stream_lock_changed(oxfw); 7608985f4acSTakashi Sakamoto err = 0; 7618985f4acSTakashi Sakamoto end: 7628985f4acSTakashi Sakamoto spin_unlock_irq(&oxfw->lock); 7638985f4acSTakashi Sakamoto return err; 7648985f4acSTakashi Sakamoto } 7658985f4acSTakashi Sakamoto 7668985f4acSTakashi Sakamoto void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw) 7678985f4acSTakashi Sakamoto { 7688985f4acSTakashi Sakamoto spin_lock_irq(&oxfw->lock); 7698985f4acSTakashi Sakamoto 7708985f4acSTakashi Sakamoto if (WARN_ON(oxfw->dev_lock_count <= 0)) 7718985f4acSTakashi Sakamoto goto end; 7728985f4acSTakashi Sakamoto if (--oxfw->dev_lock_count == 0) 7738985f4acSTakashi Sakamoto snd_oxfw_stream_lock_changed(oxfw); 7748985f4acSTakashi Sakamoto end: 7758985f4acSTakashi Sakamoto spin_unlock_irq(&oxfw->lock); 7768985f4acSTakashi Sakamoto } 777