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 1147bc93821STakashi Sakamoto err = cmp_connection_establish(conn); 115f3699e2cSTakashi Sakamoto if (err < 0) 116e34244ddSTakashi Sakamoto return err; 117f3699e2cSTakashi Sakamoto 118e34244ddSTakashi Sakamoto err = amdtp_stream_start(stream, 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 // Wait first packet. 125f2b14c0bSTakashi Sakamoto if (!amdtp_stream_wait_callback(stream, CALLBACK_TIMEOUT)) { 126e34244ddSTakashi Sakamoto amdtp_stream_stop(stream); 127e34244ddSTakashi Sakamoto cmp_connection_break(conn); 128e34244ddSTakashi Sakamoto return -ETIMEDOUT; 129f2b14c0bSTakashi Sakamoto } 130e34244ddSTakashi Sakamoto 131e34244ddSTakashi Sakamoto return 0; 132f3699e2cSTakashi Sakamoto } 133f3699e2cSTakashi Sakamoto 134b0ac0009STakashi Sakamoto static int check_connection_used_by_others(struct snd_oxfw *oxfw, 135b0ac0009STakashi Sakamoto struct amdtp_stream *stream) 136f3699e2cSTakashi Sakamoto { 137b0ac0009STakashi Sakamoto struct cmp_connection *conn; 138b0ac0009STakashi Sakamoto bool used; 139b0ac0009STakashi Sakamoto int err; 140b0ac0009STakashi Sakamoto 141b0ac0009STakashi Sakamoto if (stream == &oxfw->tx_stream) 142b0ac0009STakashi Sakamoto conn = &oxfw->out_conn; 143b0ac0009STakashi Sakamoto else 144b0ac0009STakashi Sakamoto conn = &oxfw->in_conn; 145b0ac0009STakashi Sakamoto 146b0ac0009STakashi Sakamoto err = cmp_connection_check_used(conn, &used); 147b0ac0009STakashi Sakamoto if ((err >= 0) && used && !amdtp_stream_running(stream)) { 148b0ac0009STakashi Sakamoto dev_err(&oxfw->unit->device, 149b0ac0009STakashi Sakamoto "Connection established by others: %cPCR[%d]\n", 150b0ac0009STakashi Sakamoto (conn->direction == CMP_OUTPUT) ? 'o' : 'i', 151b0ac0009STakashi Sakamoto conn->pcr_index); 152b0ac0009STakashi Sakamoto err = -EBUSY; 153b0ac0009STakashi Sakamoto } 154b0ac0009STakashi Sakamoto 155b0ac0009STakashi Sakamoto return err; 156b0ac0009STakashi Sakamoto } 157b0ac0009STakashi Sakamoto 158779f0dbaSTakashi Sakamoto static int init_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream) 159b0ac0009STakashi Sakamoto { 160b0ac0009STakashi Sakamoto struct cmp_connection *conn; 161b0ac0009STakashi Sakamoto enum cmp_direction c_dir; 162b0ac0009STakashi Sakamoto enum amdtp_stream_direction s_dir; 163b0ac0009STakashi Sakamoto int err; 164b0ac0009STakashi Sakamoto 165b0ac0009STakashi Sakamoto if (stream == &oxfw->tx_stream) { 166b0ac0009STakashi Sakamoto conn = &oxfw->out_conn; 167b0ac0009STakashi Sakamoto c_dir = CMP_OUTPUT; 168b0ac0009STakashi Sakamoto s_dir = AMDTP_IN_STREAM; 169b0ac0009STakashi Sakamoto } else { 170b0ac0009STakashi Sakamoto conn = &oxfw->in_conn; 171b0ac0009STakashi Sakamoto c_dir = CMP_INPUT; 172b0ac0009STakashi Sakamoto s_dir = AMDTP_OUT_STREAM; 173b0ac0009STakashi Sakamoto } 174b0ac0009STakashi Sakamoto 175b0ac0009STakashi Sakamoto err = cmp_connection_init(conn, oxfw->unit, c_dir, 0); 176b0ac0009STakashi Sakamoto if (err < 0) 177779f0dbaSTakashi Sakamoto return err; 178b0ac0009STakashi Sakamoto 1795955815eSTakashi Sakamoto err = amdtp_am824_init(stream, oxfw->unit, s_dir, CIP_NONBLOCKING); 180b0ac0009STakashi Sakamoto if (err < 0) { 181b0ac0009STakashi Sakamoto cmp_connection_destroy(conn); 182779f0dbaSTakashi Sakamoto return err; 183b0ac0009STakashi Sakamoto } 184b0ac0009STakashi Sakamoto 185a2064710STakashi Sakamoto /* 186a2064710STakashi Sakamoto * OXFW starts to transmit packets with non-zero dbc. 187a2064710STakashi Sakamoto * OXFW postpone transferring packets till handling any asynchronous 188a2064710STakashi Sakamoto * packets. As a result, next isochronous packet includes more data 189a2064710STakashi Sakamoto * blocks than IEC 61883-6 defines. 190a2064710STakashi Sakamoto */ 19113f3a46dSTakashi Sakamoto if (stream == &oxfw->tx_stream) { 19262f00e40STakashi Sakamoto oxfw->tx_stream.flags |= CIP_JUMBO_PAYLOAD; 19313f3a46dSTakashi Sakamoto if (oxfw->wrong_dbs) 19413f3a46dSTakashi Sakamoto oxfw->tx_stream.flags |= CIP_WRONG_DBS; 19513f3a46dSTakashi Sakamoto } 196779f0dbaSTakashi Sakamoto 197779f0dbaSTakashi Sakamoto return 0; 198b0ac0009STakashi Sakamoto } 199b0ac0009STakashi Sakamoto 2000356ce3aSTakashi Sakamoto static int keep_resources(struct snd_oxfw *oxfw, struct amdtp_stream *stream) 2010356ce3aSTakashi Sakamoto { 2020356ce3aSTakashi Sakamoto enum avc_general_plug_dir dir; 2030356ce3aSTakashi Sakamoto u8 **formats; 2040356ce3aSTakashi Sakamoto struct snd_oxfw_stream_formation formation; 2057bc93821STakashi Sakamoto struct cmp_connection *conn; 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; 2127bc93821STakashi Sakamoto conn = &oxfw->in_conn; 2130356ce3aSTakashi Sakamoto } else { 2140356ce3aSTakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_OUT; 2150356ce3aSTakashi Sakamoto formats = oxfw->tx_stream_formats; 2167bc93821STakashi Sakamoto conn = &oxfw->out_conn; 2170356ce3aSTakashi Sakamoto } 2180356ce3aSTakashi Sakamoto 2190356ce3aSTakashi Sakamoto err = snd_oxfw_stream_get_current_formation(oxfw, dir, &formation); 2200356ce3aSTakashi Sakamoto if (err < 0) 2210356ce3aSTakashi Sakamoto return err; 2220356ce3aSTakashi Sakamoto 2230356ce3aSTakashi Sakamoto for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 2240356ce3aSTakashi Sakamoto struct snd_oxfw_stream_formation fmt; 2250356ce3aSTakashi Sakamoto 2260356ce3aSTakashi Sakamoto if (formats[i] == NULL) 2270356ce3aSTakashi Sakamoto break; 2280356ce3aSTakashi Sakamoto 2290356ce3aSTakashi Sakamoto err = snd_oxfw_stream_parse_format(formats[i], &fmt); 2300356ce3aSTakashi Sakamoto if (err < 0) 2310356ce3aSTakashi Sakamoto return err; 2320356ce3aSTakashi Sakamoto 2330356ce3aSTakashi Sakamoto if (fmt.rate == formation.rate && fmt.pcm == formation.pcm && 2340356ce3aSTakashi Sakamoto fmt.midi == formation.midi) 2350356ce3aSTakashi Sakamoto break; 2360356ce3aSTakashi Sakamoto } 2370356ce3aSTakashi Sakamoto if (i == SND_OXFW_STREAM_FORMAT_ENTRIES) 2380356ce3aSTakashi Sakamoto return -EINVAL; 2390356ce3aSTakashi Sakamoto 2400356ce3aSTakashi Sakamoto // The stream should have one pcm channels at least. 2410356ce3aSTakashi Sakamoto if (formation.pcm == 0) 2420356ce3aSTakashi Sakamoto return -EINVAL; 2430356ce3aSTakashi Sakamoto 2447bc93821STakashi Sakamoto err = amdtp_am824_set_parameters(stream, formation.rate, formation.pcm, 2450356ce3aSTakashi Sakamoto formation.midi * 8, false); 2467bc93821STakashi Sakamoto if (err < 0) 2477bc93821STakashi Sakamoto return err; 2487bc93821STakashi Sakamoto 2497bc93821STakashi Sakamoto return cmp_connection_reserve(conn, amdtp_stream_get_max_payload(stream)); 2500356ce3aSTakashi Sakamoto } 2510356ce3aSTakashi Sakamoto 2524f380d00STakashi Sakamoto int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw, 253b0ac0009STakashi Sakamoto struct amdtp_stream *stream, 254b0ac0009STakashi Sakamoto unsigned int rate, unsigned int pcm_channels) 255b0ac0009STakashi Sakamoto { 256f3699e2cSTakashi Sakamoto struct snd_oxfw_stream_formation formation; 257b0ac0009STakashi Sakamoto enum avc_general_plug_dir dir; 2584f380d00STakashi Sakamoto int err; 259e2786ca6STakashi Sakamoto 26020358d44STakashi Sakamoto // Considering JACK/FFADO streaming: 26120358d44STakashi Sakamoto // TODO: This can be removed hwdep functionality becomes popular. 26220358d44STakashi Sakamoto err = check_connection_used_by_others(oxfw, &oxfw->rx_stream); 26320358d44STakashi Sakamoto if (err < 0) 26420358d44STakashi Sakamoto return err; 26520358d44STakashi Sakamoto if (oxfw->has_output) { 26620358d44STakashi Sakamoto err = check_connection_used_by_others(oxfw, &oxfw->tx_stream); 26720358d44STakashi Sakamoto if (err < 0) 26820358d44STakashi Sakamoto return err; 269b0ac0009STakashi Sakamoto } 270b0ac0009STakashi Sakamoto 27120358d44STakashi Sakamoto if (stream == &oxfw->tx_stream) 27220358d44STakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_OUT; 27320358d44STakashi Sakamoto else 27420358d44STakashi Sakamoto dir = AVC_GENERAL_PLUG_DIR_IN; 275b0ac0009STakashi Sakamoto 276b0ac0009STakashi Sakamoto err = snd_oxfw_stream_get_current_formation(oxfw, dir, &formation); 277e2786ca6STakashi Sakamoto if (err < 0) 27820358d44STakashi Sakamoto return err; 2794f380d00STakashi Sakamoto if (rate == 0) { 28005588d34STakashi Sakamoto rate = formation.rate; 28105588d34STakashi Sakamoto pcm_channels = formation.pcm; 2824f380d00STakashi Sakamoto } 2834f380d00STakashi Sakamoto if (formation.rate != rate || formation.pcm != pcm_channels) { 284e34244ddSTakashi Sakamoto amdtp_stream_stop(&oxfw->rx_stream); 285e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 286e34244ddSTakashi Sakamoto 287e34244ddSTakashi Sakamoto if (oxfw->has_output) { 288e34244ddSTakashi Sakamoto amdtp_stream_stop(&oxfw->tx_stream); 289e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 290e34244ddSTakashi Sakamoto } 2914f380d00STakashi Sakamoto } 292f3699e2cSTakashi Sakamoto 2934f380d00STakashi Sakamoto if (oxfw->substreams_count == 0 || 2944f380d00STakashi Sakamoto formation.rate != rate || formation.pcm != pcm_channels) { 295b0ac0009STakashi Sakamoto err = set_stream_format(oxfw, stream, rate, pcm_channels); 296f3699e2cSTakashi Sakamoto if (err < 0) { 297f3699e2cSTakashi Sakamoto dev_err(&oxfw->unit->device, 298f3699e2cSTakashi Sakamoto "fail to set stream format: %d\n", err); 29920358d44STakashi Sakamoto return err; 30020358d44STakashi Sakamoto } 3010356ce3aSTakashi Sakamoto 3020356ce3aSTakashi Sakamoto err = keep_resources(oxfw, &oxfw->rx_stream); 3030356ce3aSTakashi Sakamoto if (err < 0) 3040356ce3aSTakashi Sakamoto return err; 3050356ce3aSTakashi Sakamoto 3060356ce3aSTakashi Sakamoto if (oxfw->has_output) { 3070356ce3aSTakashi Sakamoto err = keep_resources(oxfw, &oxfw->tx_stream); 3087bc93821STakashi Sakamoto if (err < 0) { 3097bc93821STakashi Sakamoto cmp_connection_release(&oxfw->in_conn); 3100356ce3aSTakashi Sakamoto return err; 3110356ce3aSTakashi Sakamoto } 312f3699e2cSTakashi 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)) { 3274f380d00STakashi Sakamoto amdtp_stream_stop(&oxfw->rx_stream); 3284f380d00STakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 3294f380d00STakashi Sakamoto 3304f380d00STakashi Sakamoto if (oxfw->has_output) { 3314f380d00STakashi Sakamoto amdtp_stream_stop(&oxfw->tx_stream); 3324f380d00STakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 3334f380d00STakashi Sakamoto } 3344f380d00STakashi Sakamoto } 3354f380d00STakashi Sakamoto 33620358d44STakashi Sakamoto if (!amdtp_stream_running(&oxfw->rx_stream)) { 33720358d44STakashi Sakamoto err = start_stream(oxfw, &oxfw->rx_stream); 338b0ac0009STakashi Sakamoto if (err < 0) { 339b0ac0009STakashi Sakamoto dev_err(&oxfw->unit->device, 34020358d44STakashi Sakamoto "fail to start rx stream: %d\n", err); 34120358d44STakashi Sakamoto goto error; 34220358d44STakashi Sakamoto } 34320358d44STakashi Sakamoto } 34420358d44STakashi Sakamoto 34520358d44STakashi Sakamoto if (oxfw->has_output) { 34620358d44STakashi Sakamoto if (!amdtp_stream_running(&oxfw->tx_stream)) { 34720358d44STakashi Sakamoto err = start_stream(oxfw, &oxfw->tx_stream); 34820358d44STakashi Sakamoto if (err < 0) { 34920358d44STakashi Sakamoto dev_err(&oxfw->unit->device, 35020358d44STakashi Sakamoto "fail to start tx stream: %d\n", err); 35120358d44STakashi Sakamoto goto error; 352b0ac0009STakashi Sakamoto } 353b0ac0009STakashi Sakamoto } 354f3699e2cSTakashi Sakamoto } 355f3699e2cSTakashi Sakamoto 35620358d44STakashi Sakamoto return 0; 35720358d44STakashi Sakamoto error: 358e34244ddSTakashi Sakamoto amdtp_stream_stop(&oxfw->rx_stream); 35920358d44STakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 36020358d44STakashi Sakamoto if (oxfw->has_output) { 361e34244ddSTakashi Sakamoto amdtp_stream_stop(&oxfw->tx_stream); 36220358d44STakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 363b0ac0009STakashi Sakamoto } 364e2786ca6STakashi Sakamoto return err; 365e2786ca6STakashi Sakamoto } 366e2786ca6STakashi Sakamoto 367779f0dbaSTakashi Sakamoto void snd_oxfw_stream_stop_duplex(struct snd_oxfw *oxfw) 368e2786ca6STakashi Sakamoto { 3694a0a0472STakashi Sakamoto if (oxfw->substreams_count == 0) { 370e34244ddSTakashi Sakamoto amdtp_stream_stop(&oxfw->rx_stream); 371e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 3727bc93821STakashi Sakamoto cmp_connection_release(&oxfw->in_conn); 373b0ac0009STakashi Sakamoto 374e34244ddSTakashi Sakamoto if (oxfw->has_output) { 375e34244ddSTakashi Sakamoto amdtp_stream_stop(&oxfw->tx_stream); 376e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 3777bc93821STakashi Sakamoto cmp_connection_release(&oxfw->out_conn); 378e34244ddSTakashi Sakamoto } 37920358d44STakashi Sakamoto } 380e2786ca6STakashi Sakamoto } 381e2786ca6STakashi Sakamoto 382779f0dbaSTakashi Sakamoto static void destroy_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream) 383e2786ca6STakashi Sakamoto { 384b0ac0009STakashi Sakamoto struct cmp_connection *conn; 385e2786ca6STakashi Sakamoto 386b0ac0009STakashi Sakamoto if (stream == &oxfw->tx_stream) 387b0ac0009STakashi Sakamoto conn = &oxfw->out_conn; 388e2786ca6STakashi Sakamoto else 389b0ac0009STakashi Sakamoto conn = &oxfw->in_conn; 390b0ac0009STakashi Sakamoto 391b0ac0009STakashi Sakamoto amdtp_stream_destroy(stream); 392b0ac0009STakashi Sakamoto cmp_connection_destroy(conn); 393b0ac0009STakashi Sakamoto } 394b0ac0009STakashi Sakamoto 395779f0dbaSTakashi Sakamoto int snd_oxfw_stream_init_duplex(struct snd_oxfw *oxfw) 396779f0dbaSTakashi Sakamoto { 397779f0dbaSTakashi Sakamoto int err; 398779f0dbaSTakashi Sakamoto 399779f0dbaSTakashi Sakamoto err = init_stream(oxfw, &oxfw->rx_stream); 400779f0dbaSTakashi Sakamoto if (err < 0) 401779f0dbaSTakashi Sakamoto return err; 402779f0dbaSTakashi Sakamoto 403779f0dbaSTakashi Sakamoto if (oxfw->has_output) { 404779f0dbaSTakashi Sakamoto err = init_stream(oxfw, &oxfw->tx_stream); 405779f0dbaSTakashi Sakamoto if (err < 0) { 406779f0dbaSTakashi Sakamoto destroy_stream(oxfw, &oxfw->rx_stream); 407779f0dbaSTakashi Sakamoto return err; 408779f0dbaSTakashi Sakamoto } 409779f0dbaSTakashi Sakamoto } 410779f0dbaSTakashi Sakamoto 411779f0dbaSTakashi Sakamoto return 0; 412779f0dbaSTakashi Sakamoto } 413779f0dbaSTakashi Sakamoto 414779f0dbaSTakashi Sakamoto // This function should be called before starting the stream or after stopping 415779f0dbaSTakashi Sakamoto // the streams. 416779f0dbaSTakashi Sakamoto void snd_oxfw_stream_destroy_duplex(struct snd_oxfw *oxfw) 417779f0dbaSTakashi Sakamoto { 418779f0dbaSTakashi Sakamoto destroy_stream(oxfw, &oxfw->rx_stream); 419779f0dbaSTakashi Sakamoto 420779f0dbaSTakashi Sakamoto if (oxfw->has_output) 421779f0dbaSTakashi Sakamoto destroy_stream(oxfw, &oxfw->tx_stream); 422779f0dbaSTakashi Sakamoto } 423779f0dbaSTakashi Sakamoto 424779f0dbaSTakashi Sakamoto void snd_oxfw_stream_update_duplex(struct snd_oxfw *oxfw) 425b0ac0009STakashi Sakamoto { 426e34244ddSTakashi Sakamoto amdtp_stream_stop(&oxfw->rx_stream); 427e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->in_conn); 428b0ac0009STakashi Sakamoto 429e34244ddSTakashi Sakamoto amdtp_stream_pcm_abort(&oxfw->rx_stream); 430e34244ddSTakashi Sakamoto 431e34244ddSTakashi Sakamoto if (oxfw->has_output) { 432e34244ddSTakashi Sakamoto amdtp_stream_stop(&oxfw->tx_stream); 433e34244ddSTakashi Sakamoto cmp_connection_break(&oxfw->out_conn); 434e34244ddSTakashi Sakamoto 435e34244ddSTakashi Sakamoto amdtp_stream_pcm_abort(&oxfw->tx_stream); 436e34244ddSTakashi Sakamoto } 437e2786ca6STakashi Sakamoto } 4385cd1d3f4STakashi Sakamoto 4393c96101fSTakashi Sakamoto int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw, 4403c96101fSTakashi Sakamoto enum avc_general_plug_dir dir, 4413c96101fSTakashi Sakamoto struct snd_oxfw_stream_formation *formation) 4423c96101fSTakashi Sakamoto { 4433c96101fSTakashi Sakamoto u8 *format; 4443c96101fSTakashi Sakamoto unsigned int len; 4453c96101fSTakashi Sakamoto int err; 4463c96101fSTakashi Sakamoto 4473c96101fSTakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 4483c96101fSTakashi Sakamoto format = kmalloc(len, GFP_KERNEL); 4493c96101fSTakashi Sakamoto if (format == NULL) 4503c96101fSTakashi Sakamoto return -ENOMEM; 4513c96101fSTakashi Sakamoto 4523c96101fSTakashi Sakamoto err = avc_stream_get_format_single(oxfw->unit, dir, 0, format, &len); 4533c96101fSTakashi Sakamoto if (err < 0) 4543c96101fSTakashi Sakamoto goto end; 4553c96101fSTakashi Sakamoto if (len < 3) { 4563c96101fSTakashi Sakamoto err = -EIO; 4573c96101fSTakashi Sakamoto goto end; 4583c96101fSTakashi Sakamoto } 4593c96101fSTakashi Sakamoto 4603c96101fSTakashi Sakamoto err = snd_oxfw_stream_parse_format(format, formation); 4613c96101fSTakashi Sakamoto end: 4623c96101fSTakashi Sakamoto kfree(format); 4633c96101fSTakashi Sakamoto return err; 4643c96101fSTakashi Sakamoto } 4653c96101fSTakashi Sakamoto 4665cd1d3f4STakashi Sakamoto /* 4675cd1d3f4STakashi Sakamoto * See Table 6.16 - AM824 Stream Format 4685cd1d3f4STakashi Sakamoto * Figure 6.19 - format_information field for AM824 Compound 4695cd1d3f4STakashi Sakamoto * in AV/C Stream Format Information Specification 1.1 (Apr 2005, 1394TA) 4705cd1d3f4STakashi Sakamoto * Also 'Clause 12 AM824 sequence adaption layers' in IEC 61883-6:2005 4715cd1d3f4STakashi Sakamoto */ 4725cd1d3f4STakashi Sakamoto int snd_oxfw_stream_parse_format(u8 *format, 4735cd1d3f4STakashi Sakamoto struct snd_oxfw_stream_formation *formation) 4745cd1d3f4STakashi Sakamoto { 4755cd1d3f4STakashi Sakamoto unsigned int i, e, channels, type; 4765cd1d3f4STakashi Sakamoto 4775cd1d3f4STakashi Sakamoto memset(formation, 0, sizeof(struct snd_oxfw_stream_formation)); 4785cd1d3f4STakashi Sakamoto 4795cd1d3f4STakashi Sakamoto /* 4805cd1d3f4STakashi Sakamoto * this module can support a hierarchy combination that: 4815cd1d3f4STakashi Sakamoto * Root: Audio and Music (0x90) 4825cd1d3f4STakashi Sakamoto * Level 1: AM824 Compound (0x40) 4835cd1d3f4STakashi Sakamoto */ 4845cd1d3f4STakashi Sakamoto if ((format[0] != 0x90) || (format[1] != 0x40)) 4855cd1d3f4STakashi Sakamoto return -ENOSYS; 4865cd1d3f4STakashi Sakamoto 4875cd1d3f4STakashi Sakamoto /* check the sampling rate */ 4885cd1d3f4STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(avc_stream_rate_table); i++) { 4895cd1d3f4STakashi Sakamoto if (format[2] == avc_stream_rate_table[i]) 4905cd1d3f4STakashi Sakamoto break; 4915cd1d3f4STakashi Sakamoto } 4925cd1d3f4STakashi Sakamoto if (i == ARRAY_SIZE(avc_stream_rate_table)) 4935cd1d3f4STakashi Sakamoto return -ENOSYS; 4945cd1d3f4STakashi Sakamoto 4955cd1d3f4STakashi Sakamoto formation->rate = oxfw_rate_table[i]; 4965cd1d3f4STakashi Sakamoto 4975cd1d3f4STakashi Sakamoto for (e = 0; e < format[4]; e++) { 4985cd1d3f4STakashi Sakamoto channels = format[5 + e * 2]; 4995cd1d3f4STakashi Sakamoto type = format[6 + e * 2]; 5005cd1d3f4STakashi Sakamoto 5015cd1d3f4STakashi Sakamoto switch (type) { 5025cd1d3f4STakashi Sakamoto /* IEC 60958 Conformant, currently handled as MBLA */ 5035cd1d3f4STakashi Sakamoto case 0x00: 5045cd1d3f4STakashi Sakamoto /* Multi Bit Linear Audio (Raw) */ 5055cd1d3f4STakashi Sakamoto case 0x06: 5065cd1d3f4STakashi Sakamoto formation->pcm += channels; 5075cd1d3f4STakashi Sakamoto break; 5085cd1d3f4STakashi Sakamoto /* MIDI Conformant */ 5095cd1d3f4STakashi Sakamoto case 0x0d: 5105cd1d3f4STakashi Sakamoto formation->midi = channels; 5115cd1d3f4STakashi Sakamoto break; 5125cd1d3f4STakashi Sakamoto /* IEC 61937-3 to 7 */ 5135cd1d3f4STakashi Sakamoto case 0x01: 5145cd1d3f4STakashi Sakamoto case 0x02: 5155cd1d3f4STakashi Sakamoto case 0x03: 5165cd1d3f4STakashi Sakamoto case 0x04: 5175cd1d3f4STakashi Sakamoto case 0x05: 5185cd1d3f4STakashi Sakamoto /* Multi Bit Linear Audio */ 5195cd1d3f4STakashi Sakamoto case 0x07: /* DVD-Audio */ 5205cd1d3f4STakashi Sakamoto case 0x0c: /* High Precision */ 5215cd1d3f4STakashi Sakamoto /* One Bit Audio */ 5225cd1d3f4STakashi Sakamoto case 0x08: /* (Plain) Raw */ 5235cd1d3f4STakashi Sakamoto case 0x09: /* (Plain) SACD */ 5245cd1d3f4STakashi Sakamoto case 0x0a: /* (Encoded) Raw */ 5255cd1d3f4STakashi Sakamoto case 0x0b: /* (Encoded) SACD */ 5265cd1d3f4STakashi Sakamoto /* SMPTE Time-Code conformant */ 5275cd1d3f4STakashi Sakamoto case 0x0e: 5285cd1d3f4STakashi Sakamoto /* Sample Count */ 5295cd1d3f4STakashi Sakamoto case 0x0f: 5305cd1d3f4STakashi Sakamoto /* Anciliary Data */ 5315cd1d3f4STakashi Sakamoto case 0x10: 5325cd1d3f4STakashi Sakamoto /* Synchronization Stream (Stereo Raw audio) */ 5335cd1d3f4STakashi Sakamoto case 0x40: 5345cd1d3f4STakashi Sakamoto /* Don't care */ 5355cd1d3f4STakashi Sakamoto case 0xff: 5365cd1d3f4STakashi Sakamoto default: 5375cd1d3f4STakashi Sakamoto return -ENOSYS; /* not supported */ 5385cd1d3f4STakashi Sakamoto } 5395cd1d3f4STakashi Sakamoto } 5405cd1d3f4STakashi Sakamoto 54149c7b3fcSTakashi Sakamoto if (formation->pcm > AM824_MAX_CHANNELS_FOR_PCM || 54249c7b3fcSTakashi Sakamoto formation->midi > AM824_MAX_CHANNELS_FOR_MIDI) 5435cd1d3f4STakashi Sakamoto return -ENOSYS; 5445cd1d3f4STakashi Sakamoto 5455cd1d3f4STakashi Sakamoto return 0; 5465cd1d3f4STakashi Sakamoto } 5475cd1d3f4STakashi Sakamoto 5485cd1d3f4STakashi Sakamoto static int 5495cd1d3f4STakashi Sakamoto assume_stream_formats(struct snd_oxfw *oxfw, enum avc_general_plug_dir dir, 5505cd1d3f4STakashi Sakamoto unsigned int pid, u8 *buf, unsigned int *len, 5515cd1d3f4STakashi Sakamoto u8 **formats) 5525cd1d3f4STakashi Sakamoto { 5535cd1d3f4STakashi Sakamoto struct snd_oxfw_stream_formation formation; 5545cd1d3f4STakashi Sakamoto unsigned int i, eid; 5555cd1d3f4STakashi Sakamoto int err; 5565cd1d3f4STakashi Sakamoto 5575cd1d3f4STakashi Sakamoto /* get format at current sampling rate */ 5585cd1d3f4STakashi Sakamoto err = avc_stream_get_format_single(oxfw->unit, dir, pid, buf, len); 5595cd1d3f4STakashi Sakamoto if (err < 0) { 5605cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 5615cd1d3f4STakashi Sakamoto "fail to get current stream format for isoc %s plug %d:%d\n", 5625cd1d3f4STakashi Sakamoto (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : "out", 5635cd1d3f4STakashi Sakamoto pid, err); 5645cd1d3f4STakashi Sakamoto goto end; 5655cd1d3f4STakashi Sakamoto } 5665cd1d3f4STakashi Sakamoto 5675cd1d3f4STakashi Sakamoto /* parse and set stream format */ 5685cd1d3f4STakashi Sakamoto eid = 0; 5695cd1d3f4STakashi Sakamoto err = snd_oxfw_stream_parse_format(buf, &formation); 5705cd1d3f4STakashi Sakamoto if (err < 0) 5715cd1d3f4STakashi Sakamoto goto end; 5725cd1d3f4STakashi Sakamoto 573cd3b7116STakashi Sakamoto formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, *len, 574cd3b7116STakashi Sakamoto GFP_KERNEL); 575cd3b7116STakashi Sakamoto if (!formats[eid]) { 5765cd1d3f4STakashi Sakamoto err = -ENOMEM; 5775cd1d3f4STakashi Sakamoto goto end; 5785cd1d3f4STakashi Sakamoto } 5795cd1d3f4STakashi Sakamoto 5805cd1d3f4STakashi Sakamoto /* apply the format for each available sampling rate */ 5815cd1d3f4STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(oxfw_rate_table); i++) { 5825cd1d3f4STakashi Sakamoto if (formation.rate == oxfw_rate_table[i]) 5835cd1d3f4STakashi Sakamoto continue; 5845cd1d3f4STakashi Sakamoto 5855cd1d3f4STakashi Sakamoto err = avc_general_inquiry_sig_fmt(oxfw->unit, 5865cd1d3f4STakashi Sakamoto oxfw_rate_table[i], 5875cd1d3f4STakashi Sakamoto dir, pid); 5885cd1d3f4STakashi Sakamoto if (err < 0) 5895cd1d3f4STakashi Sakamoto continue; 5905cd1d3f4STakashi Sakamoto 5915cd1d3f4STakashi Sakamoto eid++; 592cd3b7116STakashi Sakamoto formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, *len, 593cd3b7116STakashi Sakamoto GFP_KERNEL); 5945cd1d3f4STakashi Sakamoto if (formats[eid] == NULL) { 5955cd1d3f4STakashi Sakamoto err = -ENOMEM; 5965cd1d3f4STakashi Sakamoto goto end; 5975cd1d3f4STakashi Sakamoto } 5985cd1d3f4STakashi Sakamoto formats[eid][2] = avc_stream_rate_table[i]; 5995cd1d3f4STakashi Sakamoto } 6005cd1d3f4STakashi Sakamoto 6015cd1d3f4STakashi Sakamoto err = 0; 6025cd1d3f4STakashi Sakamoto oxfw->assumed = true; 6035cd1d3f4STakashi Sakamoto end: 6045cd1d3f4STakashi Sakamoto return err; 6055cd1d3f4STakashi Sakamoto } 6065cd1d3f4STakashi Sakamoto 6075cd1d3f4STakashi Sakamoto static int fill_stream_formats(struct snd_oxfw *oxfw, 6085cd1d3f4STakashi Sakamoto enum avc_general_plug_dir dir, 6095cd1d3f4STakashi Sakamoto unsigned short pid) 6105cd1d3f4STakashi Sakamoto { 6115cd1d3f4STakashi Sakamoto u8 *buf, **formats; 6125cd1d3f4STakashi Sakamoto unsigned int len, eid = 0; 6135cd1d3f4STakashi Sakamoto struct snd_oxfw_stream_formation dummy; 6145cd1d3f4STakashi Sakamoto int err; 6155cd1d3f4STakashi Sakamoto 6165cd1d3f4STakashi Sakamoto buf = kmalloc(AVC_GENERIC_FRAME_MAXIMUM_BYTES, GFP_KERNEL); 6175cd1d3f4STakashi Sakamoto if (buf == NULL) 6185cd1d3f4STakashi Sakamoto return -ENOMEM; 6195cd1d3f4STakashi Sakamoto 620b0ac0009STakashi Sakamoto if (dir == AVC_GENERAL_PLUG_DIR_OUT) 621b0ac0009STakashi Sakamoto formats = oxfw->tx_stream_formats; 622b0ac0009STakashi Sakamoto else 6235cd1d3f4STakashi Sakamoto formats = oxfw->rx_stream_formats; 6245cd1d3f4STakashi Sakamoto 6255cd1d3f4STakashi Sakamoto /* get first entry */ 6265cd1d3f4STakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 6275cd1d3f4STakashi Sakamoto err = avc_stream_get_format_list(oxfw->unit, dir, 0, buf, &len, 0); 6285cd1d3f4STakashi Sakamoto if (err == -ENOSYS) { 6295cd1d3f4STakashi Sakamoto /* LIST subfunction is not implemented */ 6305cd1d3f4STakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 6315cd1d3f4STakashi Sakamoto err = assume_stream_formats(oxfw, dir, pid, buf, &len, 6325cd1d3f4STakashi Sakamoto formats); 6335cd1d3f4STakashi Sakamoto goto end; 6345cd1d3f4STakashi Sakamoto } else if (err < 0) { 6355cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 6365cd1d3f4STakashi Sakamoto "fail to get stream format %d for isoc %s plug %d:%d\n", 6375cd1d3f4STakashi Sakamoto eid, (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : "out", 6385cd1d3f4STakashi Sakamoto pid, err); 6395cd1d3f4STakashi Sakamoto goto end; 6405cd1d3f4STakashi Sakamoto } 6415cd1d3f4STakashi Sakamoto 6425cd1d3f4STakashi Sakamoto /* LIST subfunction is implemented */ 6435cd1d3f4STakashi Sakamoto while (eid < SND_OXFW_STREAM_FORMAT_ENTRIES) { 6445cd1d3f4STakashi Sakamoto /* The format is too short. */ 6455cd1d3f4STakashi Sakamoto if (len < 3) { 6465cd1d3f4STakashi Sakamoto err = -EIO; 6475cd1d3f4STakashi Sakamoto break; 6485cd1d3f4STakashi Sakamoto } 6495cd1d3f4STakashi Sakamoto 6505cd1d3f4STakashi Sakamoto /* parse and set stream format */ 6515cd1d3f4STakashi Sakamoto err = snd_oxfw_stream_parse_format(buf, &dummy); 6525cd1d3f4STakashi Sakamoto if (err < 0) 6535cd1d3f4STakashi Sakamoto break; 6545cd1d3f4STakashi Sakamoto 655cd3b7116STakashi Sakamoto formats[eid] = devm_kmemdup(&oxfw->card->card_dev, buf, len, 656cd3b7116STakashi Sakamoto GFP_KERNEL); 657cd3b7116STakashi Sakamoto if (!formats[eid]) { 6585cd1d3f4STakashi Sakamoto err = -ENOMEM; 6595cd1d3f4STakashi Sakamoto break; 6605cd1d3f4STakashi Sakamoto } 6615cd1d3f4STakashi Sakamoto 6625cd1d3f4STakashi Sakamoto /* get next entry */ 6635cd1d3f4STakashi Sakamoto len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; 6645cd1d3f4STakashi Sakamoto err = avc_stream_get_format_list(oxfw->unit, dir, 0, 6655cd1d3f4STakashi Sakamoto buf, &len, ++eid); 6665cd1d3f4STakashi Sakamoto /* No entries remained. */ 6675cd1d3f4STakashi Sakamoto if (err == -EINVAL) { 6685cd1d3f4STakashi Sakamoto err = 0; 6695cd1d3f4STakashi Sakamoto break; 6705cd1d3f4STakashi Sakamoto } else if (err < 0) { 6715cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 6725cd1d3f4STakashi Sakamoto "fail to get stream format %d for isoc %s plug %d:%d\n", 6735cd1d3f4STakashi Sakamoto eid, (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : 6745cd1d3f4STakashi Sakamoto "out", 6755cd1d3f4STakashi Sakamoto pid, err); 6765cd1d3f4STakashi Sakamoto break; 6775cd1d3f4STakashi Sakamoto } 6785cd1d3f4STakashi Sakamoto } 6795cd1d3f4STakashi Sakamoto end: 6805cd1d3f4STakashi Sakamoto kfree(buf); 6815cd1d3f4STakashi Sakamoto return err; 6825cd1d3f4STakashi Sakamoto } 6835cd1d3f4STakashi Sakamoto 6845cd1d3f4STakashi Sakamoto int snd_oxfw_stream_discover(struct snd_oxfw *oxfw) 6855cd1d3f4STakashi Sakamoto { 6865cd1d3f4STakashi Sakamoto u8 plugs[AVC_PLUG_INFO_BUF_BYTES]; 68732056041STakashi Sakamoto struct snd_oxfw_stream_formation formation; 68832056041STakashi Sakamoto u8 *format; 68932056041STakashi Sakamoto unsigned int i; 6905cd1d3f4STakashi Sakamoto int err; 6915cd1d3f4STakashi Sakamoto 6925cd1d3f4STakashi Sakamoto /* the number of plugs for isoc in/out, ext in/out */ 6935cd1d3f4STakashi Sakamoto err = avc_general_get_plug_info(oxfw->unit, 0x1f, 0x07, 0x00, plugs); 6945cd1d3f4STakashi Sakamoto if (err < 0) { 6955cd1d3f4STakashi Sakamoto dev_err(&oxfw->unit->device, 6965cd1d3f4STakashi Sakamoto "fail to get info for isoc/external in/out plugs: %d\n", 6975cd1d3f4STakashi Sakamoto err); 6985cd1d3f4STakashi Sakamoto goto end; 699b0ac0009STakashi Sakamoto } else if ((plugs[0] == 0) && (plugs[1] == 0)) { 7005cd1d3f4STakashi Sakamoto err = -ENOSYS; 7015cd1d3f4STakashi Sakamoto goto end; 7025cd1d3f4STakashi Sakamoto } 7035cd1d3f4STakashi Sakamoto 704b0ac0009STakashi Sakamoto /* use oPCR[0] if exists */ 705b0ac0009STakashi Sakamoto if (plugs[1] > 0) { 706b0ac0009STakashi Sakamoto err = fill_stream_formats(oxfw, AVC_GENERAL_PLUG_DIR_OUT, 0); 707b0ac0009STakashi Sakamoto if (err < 0) 708b0ac0009STakashi Sakamoto goto end; 70932056041STakashi Sakamoto 71032056041STakashi Sakamoto for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 71132056041STakashi Sakamoto format = oxfw->tx_stream_formats[i]; 71232056041STakashi Sakamoto if (format == NULL) 71332056041STakashi Sakamoto continue; 71432056041STakashi Sakamoto err = snd_oxfw_stream_parse_format(format, &formation); 71532056041STakashi Sakamoto if (err < 0) 71632056041STakashi Sakamoto continue; 71732056041STakashi Sakamoto 71832056041STakashi Sakamoto /* Add one MIDI port. */ 71932056041STakashi Sakamoto if (formation.midi > 0) 72032056041STakashi Sakamoto oxfw->midi_input_ports = 1; 72132056041STakashi Sakamoto } 72232056041STakashi Sakamoto 723b0ac0009STakashi Sakamoto oxfw->has_output = true; 724b0ac0009STakashi Sakamoto } 725b0ac0009STakashi Sakamoto 7265cd1d3f4STakashi Sakamoto /* use iPCR[0] if exists */ 72732056041STakashi Sakamoto if (plugs[0] > 0) { 7285cd1d3f4STakashi Sakamoto err = fill_stream_formats(oxfw, AVC_GENERAL_PLUG_DIR_IN, 0); 72932056041STakashi Sakamoto if (err < 0) 73032056041STakashi Sakamoto goto end; 73132056041STakashi Sakamoto 73232056041STakashi Sakamoto for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 73332056041STakashi Sakamoto format = oxfw->rx_stream_formats[i]; 73432056041STakashi Sakamoto if (format == NULL) 73532056041STakashi Sakamoto continue; 73632056041STakashi Sakamoto err = snd_oxfw_stream_parse_format(format, &formation); 73732056041STakashi Sakamoto if (err < 0) 73832056041STakashi Sakamoto continue; 73932056041STakashi Sakamoto 74032056041STakashi Sakamoto /* Add one MIDI port. */ 74132056041STakashi Sakamoto if (formation.midi > 0) 74232056041STakashi Sakamoto oxfw->midi_output_ports = 1; 74332056041STakashi Sakamoto } 74432056041STakashi Sakamoto } 7455cd1d3f4STakashi Sakamoto end: 7465cd1d3f4STakashi Sakamoto return err; 7475cd1d3f4STakashi Sakamoto } 7488985f4acSTakashi Sakamoto 7498985f4acSTakashi Sakamoto void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw) 7508985f4acSTakashi Sakamoto { 7518985f4acSTakashi Sakamoto oxfw->dev_lock_changed = true; 7528985f4acSTakashi Sakamoto wake_up(&oxfw->hwdep_wait); 7538985f4acSTakashi Sakamoto } 7548985f4acSTakashi Sakamoto 7558985f4acSTakashi Sakamoto int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw) 7568985f4acSTakashi Sakamoto { 7578985f4acSTakashi Sakamoto int err; 7588985f4acSTakashi Sakamoto 7598985f4acSTakashi Sakamoto spin_lock_irq(&oxfw->lock); 7608985f4acSTakashi Sakamoto 7618985f4acSTakashi Sakamoto /* user land lock this */ 7628985f4acSTakashi Sakamoto if (oxfw->dev_lock_count < 0) { 7638985f4acSTakashi Sakamoto err = -EBUSY; 7648985f4acSTakashi Sakamoto goto end; 7658985f4acSTakashi Sakamoto } 7668985f4acSTakashi Sakamoto 7678985f4acSTakashi Sakamoto /* this is the first time */ 7688985f4acSTakashi Sakamoto if (oxfw->dev_lock_count++ == 0) 7698985f4acSTakashi Sakamoto snd_oxfw_stream_lock_changed(oxfw); 7708985f4acSTakashi Sakamoto err = 0; 7718985f4acSTakashi Sakamoto end: 7728985f4acSTakashi Sakamoto spin_unlock_irq(&oxfw->lock); 7738985f4acSTakashi Sakamoto return err; 7748985f4acSTakashi Sakamoto } 7758985f4acSTakashi Sakamoto 7768985f4acSTakashi Sakamoto void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw) 7778985f4acSTakashi Sakamoto { 7788985f4acSTakashi Sakamoto spin_lock_irq(&oxfw->lock); 7798985f4acSTakashi Sakamoto 7808985f4acSTakashi Sakamoto if (WARN_ON(oxfw->dev_lock_count <= 0)) 7818985f4acSTakashi Sakamoto goto end; 7828985f4acSTakashi Sakamoto if (--oxfw->dev_lock_count == 0) 7838985f4acSTakashi Sakamoto snd_oxfw_stream_lock_changed(oxfw); 7848985f4acSTakashi Sakamoto end: 7858985f4acSTakashi Sakamoto spin_unlock_irq(&oxfw->lock); 7868985f4acSTakashi Sakamoto } 787