1eb7b3a05STakashi Sakamoto /* 2eb7b3a05STakashi Sakamoto * bebob_stream.c - a part of driver for BeBoB based devices 3eb7b3a05STakashi Sakamoto * 4eb7b3a05STakashi Sakamoto * Copyright (c) 2013-2014 Takashi Sakamoto 5eb7b3a05STakashi Sakamoto * 6eb7b3a05STakashi Sakamoto * Licensed under the terms of the GNU General Public License, version 2. 7eb7b3a05STakashi Sakamoto */ 8eb7b3a05STakashi Sakamoto 9eb7b3a05STakashi Sakamoto #include "./bebob.h" 10eb7b3a05STakashi Sakamoto 11eb7b3a05STakashi Sakamoto #define CALLBACK_TIMEOUT 1000 12b6bc8123STakashi Sakamoto #define FW_ISO_RESOURCE_DELAY 1000 13eb7b3a05STakashi Sakamoto 14eb7b3a05STakashi Sakamoto /* 15eb7b3a05STakashi Sakamoto * NOTE; 16eb7b3a05STakashi Sakamoto * For BeBoB streams, Both of input and output CMP connection are important. 17eb7b3a05STakashi Sakamoto * 18eb7b3a05STakashi Sakamoto * For most devices, each CMP connection starts to transmit/receive a 19eb7b3a05STakashi Sakamoto * corresponding stream. But for a few devices, both of CMP connection needs 20eb7b3a05STakashi Sakamoto * to start transmitting stream. An example is 'M-Audio Firewire 410'. 21eb7b3a05STakashi Sakamoto */ 22eb7b3a05STakashi Sakamoto 23eb7b3a05STakashi Sakamoto /* 128 is an arbitrary length but it seems to be enough */ 24eb7b3a05STakashi Sakamoto #define FORMAT_MAXIMUM_LENGTH 128 25eb7b3a05STakashi Sakamoto 26eb7b3a05STakashi Sakamoto const unsigned int snd_bebob_rate_table[SND_BEBOB_STRM_FMT_ENTRIES] = { 27eb7b3a05STakashi Sakamoto [0] = 32000, 28eb7b3a05STakashi Sakamoto [1] = 44100, 29eb7b3a05STakashi Sakamoto [2] = 48000, 30eb7b3a05STakashi Sakamoto [3] = 88200, 31eb7b3a05STakashi Sakamoto [4] = 96000, 32eb7b3a05STakashi Sakamoto [5] = 176400, 33eb7b3a05STakashi Sakamoto [6] = 192000, 34eb7b3a05STakashi Sakamoto }; 35eb7b3a05STakashi Sakamoto 36eb7b3a05STakashi Sakamoto /* 37eb7b3a05STakashi Sakamoto * See: Table 51: Extended Stream Format Info ‘Sampling Frequency’ 38eb7b3a05STakashi Sakamoto * in Additional AVC commands (Nov 2003, BridgeCo) 39eb7b3a05STakashi Sakamoto */ 40eb7b3a05STakashi Sakamoto static const unsigned int bridgeco_freq_table[] = { 41eb7b3a05STakashi Sakamoto [0] = 0x02, 42eb7b3a05STakashi Sakamoto [1] = 0x03, 43eb7b3a05STakashi Sakamoto [2] = 0x04, 44eb7b3a05STakashi Sakamoto [3] = 0x0a, 45eb7b3a05STakashi Sakamoto [4] = 0x05, 46eb7b3a05STakashi Sakamoto [5] = 0x06, 47eb7b3a05STakashi Sakamoto [6] = 0x07, 48eb7b3a05STakashi Sakamoto }; 49eb7b3a05STakashi Sakamoto 50eb7b3a05STakashi Sakamoto static unsigned int 51eb7b3a05STakashi Sakamoto get_formation_index(unsigned int rate) 52eb7b3a05STakashi Sakamoto { 53eb7b3a05STakashi Sakamoto unsigned int i; 54eb7b3a05STakashi Sakamoto 55eb7b3a05STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(snd_bebob_rate_table); i++) { 56eb7b3a05STakashi Sakamoto if (snd_bebob_rate_table[i] == rate) 57eb7b3a05STakashi Sakamoto return i; 58eb7b3a05STakashi Sakamoto } 59eb7b3a05STakashi Sakamoto return -EINVAL; 60eb7b3a05STakashi Sakamoto } 61eb7b3a05STakashi Sakamoto 62eb7b3a05STakashi Sakamoto int 63eb7b3a05STakashi Sakamoto snd_bebob_stream_get_rate(struct snd_bebob *bebob, unsigned int *curr_rate) 64eb7b3a05STakashi Sakamoto { 65eb7b3a05STakashi Sakamoto unsigned int tx_rate, rx_rate, trials; 66eb7b3a05STakashi Sakamoto int err; 67eb7b3a05STakashi Sakamoto 68eb7b3a05STakashi Sakamoto trials = 0; 69eb7b3a05STakashi Sakamoto do { 70eb7b3a05STakashi Sakamoto err = avc_general_get_sig_fmt(bebob->unit, &tx_rate, 71eb7b3a05STakashi Sakamoto AVC_GENERAL_PLUG_DIR_OUT, 0); 72eb7b3a05STakashi Sakamoto } while (err == -EAGAIN && ++trials < 3); 73eb7b3a05STakashi Sakamoto if (err < 0) 74eb7b3a05STakashi Sakamoto goto end; 75eb7b3a05STakashi Sakamoto 76eb7b3a05STakashi Sakamoto trials = 0; 77eb7b3a05STakashi Sakamoto do { 78eb7b3a05STakashi Sakamoto err = avc_general_get_sig_fmt(bebob->unit, &rx_rate, 79eb7b3a05STakashi Sakamoto AVC_GENERAL_PLUG_DIR_IN, 0); 80eb7b3a05STakashi Sakamoto } while (err == -EAGAIN && ++trials < 3); 81eb7b3a05STakashi Sakamoto if (err < 0) 82eb7b3a05STakashi Sakamoto goto end; 83eb7b3a05STakashi Sakamoto 84eb7b3a05STakashi Sakamoto *curr_rate = rx_rate; 85eb7b3a05STakashi Sakamoto if (rx_rate == tx_rate) 86eb7b3a05STakashi Sakamoto goto end; 87eb7b3a05STakashi Sakamoto 88eb7b3a05STakashi Sakamoto /* synchronize receive stream rate to transmit stream rate */ 89eb7b3a05STakashi Sakamoto err = avc_general_set_sig_fmt(bebob->unit, rx_rate, 90eb7b3a05STakashi Sakamoto AVC_GENERAL_PLUG_DIR_IN, 0); 91eb7b3a05STakashi Sakamoto end: 92eb7b3a05STakashi Sakamoto return err; 93eb7b3a05STakashi Sakamoto } 94eb7b3a05STakashi Sakamoto 95eb7b3a05STakashi Sakamoto int 96eb7b3a05STakashi Sakamoto snd_bebob_stream_set_rate(struct snd_bebob *bebob, unsigned int rate) 97eb7b3a05STakashi Sakamoto { 98eb7b3a05STakashi Sakamoto int err; 99eb7b3a05STakashi Sakamoto 100eb7b3a05STakashi Sakamoto err = avc_general_set_sig_fmt(bebob->unit, rate, 101eb7b3a05STakashi Sakamoto AVC_GENERAL_PLUG_DIR_OUT, 0); 102eb7b3a05STakashi Sakamoto if (err < 0) 103eb7b3a05STakashi Sakamoto goto end; 104eb7b3a05STakashi Sakamoto 105eb7b3a05STakashi Sakamoto err = avc_general_set_sig_fmt(bebob->unit, rate, 106eb7b3a05STakashi Sakamoto AVC_GENERAL_PLUG_DIR_IN, 0); 107eb7b3a05STakashi Sakamoto if (err < 0) 108eb7b3a05STakashi Sakamoto goto end; 109eb7b3a05STakashi Sakamoto 110eb7b3a05STakashi Sakamoto /* 111eb7b3a05STakashi Sakamoto * Some devices need a bit time for transition. 112eb7b3a05STakashi Sakamoto * 300msec is got by some experiments. 113eb7b3a05STakashi Sakamoto */ 114eb7b3a05STakashi Sakamoto msleep(300); 115eb7b3a05STakashi Sakamoto end: 116eb7b3a05STakashi Sakamoto return err; 117eb7b3a05STakashi Sakamoto } 118eb7b3a05STakashi Sakamoto 119eb7b3a05STakashi Sakamoto int 120eb7b3a05STakashi Sakamoto snd_bebob_stream_check_internal_clock(struct snd_bebob *bebob, bool *internal) 121eb7b3a05STakashi Sakamoto { 1221fc9522aSTakashi Sakamoto struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock; 123eb7b3a05STakashi Sakamoto u8 addr[AVC_BRIDGECO_ADDR_BYTES], input[7]; 1241fc9522aSTakashi Sakamoto unsigned int id; 125eb7b3a05STakashi Sakamoto int err = 0; 126eb7b3a05STakashi Sakamoto 127eb7b3a05STakashi Sakamoto *internal = false; 128eb7b3a05STakashi Sakamoto 1291fc9522aSTakashi Sakamoto /* 1.The device has its own operation to switch source of clock */ 1301fc9522aSTakashi Sakamoto if (clk_spec) { 1311fc9522aSTakashi Sakamoto err = clk_spec->get(bebob, &id); 1321fc9522aSTakashi Sakamoto if (err < 0) 1331fc9522aSTakashi Sakamoto dev_err(&bebob->unit->device, 1341fc9522aSTakashi Sakamoto "fail to get clock source: %d\n", err); 1351fc9522aSTakashi Sakamoto else if (strncmp(clk_spec->labels[id], SND_BEBOB_CLOCK_INTERNAL, 1361fc9522aSTakashi Sakamoto strlen(SND_BEBOB_CLOCK_INTERNAL)) == 0) 1371fc9522aSTakashi Sakamoto *internal = true; 1381fc9522aSTakashi Sakamoto goto end; 1391fc9522aSTakashi Sakamoto } 1401fc9522aSTakashi Sakamoto 141eb7b3a05STakashi Sakamoto /* 1421fc9522aSTakashi Sakamoto * 2.The device don't support to switch source of clock then assumed 143eb7b3a05STakashi Sakamoto * to use internal clock always 144eb7b3a05STakashi Sakamoto */ 145eb7b3a05STakashi Sakamoto if (bebob->sync_input_plug < 0) { 146eb7b3a05STakashi Sakamoto *internal = true; 147eb7b3a05STakashi Sakamoto goto end; 148eb7b3a05STakashi Sakamoto } 149eb7b3a05STakashi Sakamoto 150eb7b3a05STakashi Sakamoto /* 1511fc9522aSTakashi Sakamoto * 3.The device supports to switch source of clock by an usual way. 152eb7b3a05STakashi Sakamoto * Let's check input for 'Music Sub Unit Sync Input' plug. 153eb7b3a05STakashi Sakamoto */ 154eb7b3a05STakashi Sakamoto avc_bridgeco_fill_msu_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, 155eb7b3a05STakashi Sakamoto bebob->sync_input_plug); 156eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_input(bebob->unit, addr, input); 157eb7b3a05STakashi Sakamoto if (err < 0) { 158eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 159eb7b3a05STakashi Sakamoto "fail to get an input for MSU in plug %d: %d\n", 160eb7b3a05STakashi Sakamoto bebob->sync_input_plug, err); 161eb7b3a05STakashi Sakamoto goto end; 162eb7b3a05STakashi Sakamoto } 163eb7b3a05STakashi Sakamoto 164eb7b3a05STakashi Sakamoto /* 165eb7b3a05STakashi Sakamoto * If there are no input plugs, all of fields are 0xff. 166eb7b3a05STakashi Sakamoto * Here check the first field. This field is used for direction. 167eb7b3a05STakashi Sakamoto */ 168eb7b3a05STakashi Sakamoto if (input[0] == 0xff) { 169eb7b3a05STakashi Sakamoto *internal = true; 170eb7b3a05STakashi Sakamoto goto end; 171eb7b3a05STakashi Sakamoto } 172eb7b3a05STakashi Sakamoto 173eb7b3a05STakashi Sakamoto /* 174eb7b3a05STakashi Sakamoto * If source of clock is internal CSR, Music Sub Unit Sync Input is 175eb7b3a05STakashi Sakamoto * a destination of Music Sub Unit Sync Output. 176eb7b3a05STakashi Sakamoto */ 177eb7b3a05STakashi Sakamoto *internal = ((input[0] == AVC_BRIDGECO_PLUG_DIR_OUT) && 178eb7b3a05STakashi Sakamoto (input[1] == AVC_BRIDGECO_PLUG_MODE_SUBUNIT) && 179eb7b3a05STakashi Sakamoto (input[2] == 0x0c) && 180eb7b3a05STakashi Sakamoto (input[3] == 0x00)); 181eb7b3a05STakashi Sakamoto end: 182eb7b3a05STakashi Sakamoto return err; 183eb7b3a05STakashi Sakamoto } 184eb7b3a05STakashi Sakamoto 185eb7b3a05STakashi Sakamoto static unsigned int 186eb7b3a05STakashi Sakamoto map_data_channels(struct snd_bebob *bebob, struct amdtp_stream *s) 187eb7b3a05STakashi Sakamoto { 188eb7b3a05STakashi Sakamoto unsigned int sec, sections, ch, channels; 189eb7b3a05STakashi Sakamoto unsigned int pcm, midi, location; 190eb7b3a05STakashi Sakamoto unsigned int stm_pos, sec_loc, pos; 191eb7b3a05STakashi Sakamoto u8 *buf, addr[AVC_BRIDGECO_ADDR_BYTES], type; 192eb7b3a05STakashi Sakamoto enum avc_bridgeco_plug_dir dir; 193eb7b3a05STakashi Sakamoto int err; 194eb7b3a05STakashi Sakamoto 195eb7b3a05STakashi Sakamoto /* 196eb7b3a05STakashi Sakamoto * The length of return value of this command cannot be expected. Here 197eb7b3a05STakashi Sakamoto * use the maximum length of FCP. 198eb7b3a05STakashi Sakamoto */ 199eb7b3a05STakashi Sakamoto buf = kzalloc(256, GFP_KERNEL); 200eb7b3a05STakashi Sakamoto if (buf == NULL) 201eb7b3a05STakashi Sakamoto return -ENOMEM; 202eb7b3a05STakashi Sakamoto 203eb7b3a05STakashi Sakamoto if (s == &bebob->tx_stream) 204eb7b3a05STakashi Sakamoto dir = AVC_BRIDGECO_PLUG_DIR_OUT; 205eb7b3a05STakashi Sakamoto else 206eb7b3a05STakashi Sakamoto dir = AVC_BRIDGECO_PLUG_DIR_IN; 207eb7b3a05STakashi Sakamoto 208eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, dir, AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 209eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_ch_pos(bebob->unit, addr, buf, 256); 210eb7b3a05STakashi Sakamoto if (err < 0) { 211eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 212eb7b3a05STakashi Sakamoto "fail to get channel position for isoc %s plug 0: %d\n", 213eb7b3a05STakashi Sakamoto (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : "out", 214eb7b3a05STakashi Sakamoto err); 215eb7b3a05STakashi Sakamoto goto end; 216eb7b3a05STakashi Sakamoto } 217eb7b3a05STakashi Sakamoto pos = 0; 218eb7b3a05STakashi Sakamoto 219eb7b3a05STakashi Sakamoto /* positions in I/O buffer */ 220eb7b3a05STakashi Sakamoto pcm = 0; 221eb7b3a05STakashi Sakamoto midi = 0; 222eb7b3a05STakashi Sakamoto 223eb7b3a05STakashi Sakamoto /* the number of sections in AMDTP packet */ 224eb7b3a05STakashi Sakamoto sections = buf[pos++]; 225eb7b3a05STakashi Sakamoto 226eb7b3a05STakashi Sakamoto for (sec = 0; sec < sections; sec++) { 227eb7b3a05STakashi Sakamoto /* type of this section */ 228eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, dir, 229eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 230eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_section_type(bebob->unit, addr, 231eb7b3a05STakashi Sakamoto sec, &type); 232eb7b3a05STakashi Sakamoto if (err < 0) { 233eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 234eb7b3a05STakashi Sakamoto "fail to get section type for isoc %s plug 0: %d\n", 235eb7b3a05STakashi Sakamoto (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : 236eb7b3a05STakashi Sakamoto "out", 237eb7b3a05STakashi Sakamoto err); 238eb7b3a05STakashi Sakamoto goto end; 239eb7b3a05STakashi Sakamoto } 240eb7b3a05STakashi Sakamoto /* NoType */ 241eb7b3a05STakashi Sakamoto if (type == 0xff) { 242eb7b3a05STakashi Sakamoto err = -ENOSYS; 243eb7b3a05STakashi Sakamoto goto end; 244eb7b3a05STakashi Sakamoto } 245eb7b3a05STakashi Sakamoto 246eb7b3a05STakashi Sakamoto /* the number of channels in this section */ 247eb7b3a05STakashi Sakamoto channels = buf[pos++]; 248eb7b3a05STakashi Sakamoto 249eb7b3a05STakashi Sakamoto for (ch = 0; ch < channels; ch++) { 250eb7b3a05STakashi Sakamoto /* position of this channel in AMDTP packet */ 251eb7b3a05STakashi Sakamoto stm_pos = buf[pos++] - 1; 252eb7b3a05STakashi Sakamoto /* location of this channel in this section */ 253eb7b3a05STakashi Sakamoto sec_loc = buf[pos++] - 1; 254eb7b3a05STakashi Sakamoto 255eb7b3a05STakashi Sakamoto switch (type) { 256eb7b3a05STakashi Sakamoto /* for MIDI conformant data channel */ 257eb7b3a05STakashi Sakamoto case 0x0a: 258eb7b3a05STakashi Sakamoto /* AMDTP_MAX_CHANNELS_FOR_MIDI is 1. */ 259eb7b3a05STakashi Sakamoto if ((midi > 0) && (stm_pos != midi)) { 260eb7b3a05STakashi Sakamoto err = -ENOSYS; 261eb7b3a05STakashi Sakamoto goto end; 262eb7b3a05STakashi Sakamoto } 263eb7b3a05STakashi Sakamoto s->midi_position = stm_pos; 264eb7b3a05STakashi Sakamoto midi = stm_pos; 265eb7b3a05STakashi Sakamoto break; 266eb7b3a05STakashi Sakamoto /* for PCM data channel */ 267eb7b3a05STakashi Sakamoto case 0x01: /* Headphone */ 268eb7b3a05STakashi Sakamoto case 0x02: /* Microphone */ 269eb7b3a05STakashi Sakamoto case 0x03: /* Line */ 270eb7b3a05STakashi Sakamoto case 0x04: /* SPDIF */ 271eb7b3a05STakashi Sakamoto case 0x05: /* ADAT */ 272eb7b3a05STakashi Sakamoto case 0x06: /* TDIF */ 273eb7b3a05STakashi Sakamoto case 0x07: /* MADI */ 274eb7b3a05STakashi Sakamoto /* for undefined/changeable signal */ 275eb7b3a05STakashi Sakamoto case 0x08: /* Analog */ 276eb7b3a05STakashi Sakamoto case 0x09: /* Digital */ 277eb7b3a05STakashi Sakamoto default: 278eb7b3a05STakashi Sakamoto location = pcm + sec_loc; 279eb7b3a05STakashi Sakamoto if (location >= AMDTP_MAX_CHANNELS_FOR_PCM) { 280eb7b3a05STakashi Sakamoto err = -ENOSYS; 281eb7b3a05STakashi Sakamoto goto end; 282eb7b3a05STakashi Sakamoto } 283eb7b3a05STakashi Sakamoto s->pcm_positions[location] = stm_pos; 284eb7b3a05STakashi Sakamoto break; 285eb7b3a05STakashi Sakamoto } 286eb7b3a05STakashi Sakamoto } 287eb7b3a05STakashi Sakamoto 288eb7b3a05STakashi Sakamoto if (type != 0x0a) 289eb7b3a05STakashi Sakamoto pcm += channels; 290eb7b3a05STakashi Sakamoto else 291eb7b3a05STakashi Sakamoto midi += channels; 292eb7b3a05STakashi Sakamoto } 293eb7b3a05STakashi Sakamoto end: 294eb7b3a05STakashi Sakamoto kfree(buf); 295eb7b3a05STakashi Sakamoto return err; 296eb7b3a05STakashi Sakamoto } 297eb7b3a05STakashi Sakamoto 298eb7b3a05STakashi Sakamoto static int 299eb7b3a05STakashi Sakamoto init_both_connections(struct snd_bebob *bebob) 300eb7b3a05STakashi Sakamoto { 301eb7b3a05STakashi Sakamoto int err; 302eb7b3a05STakashi Sakamoto 303eb7b3a05STakashi Sakamoto err = cmp_connection_init(&bebob->in_conn, 304eb7b3a05STakashi Sakamoto bebob->unit, CMP_INPUT, 0); 305eb7b3a05STakashi Sakamoto if (err < 0) 306eb7b3a05STakashi Sakamoto goto end; 307eb7b3a05STakashi Sakamoto 308eb7b3a05STakashi Sakamoto err = cmp_connection_init(&bebob->out_conn, 309eb7b3a05STakashi Sakamoto bebob->unit, CMP_OUTPUT, 0); 310eb7b3a05STakashi Sakamoto if (err < 0) 311eb7b3a05STakashi Sakamoto cmp_connection_destroy(&bebob->in_conn); 312eb7b3a05STakashi Sakamoto end: 313eb7b3a05STakashi Sakamoto return err; 314eb7b3a05STakashi Sakamoto } 315eb7b3a05STakashi Sakamoto 316eb7b3a05STakashi Sakamoto static int 317eb7b3a05STakashi Sakamoto check_connection_used_by_others(struct snd_bebob *bebob, struct amdtp_stream *s) 318eb7b3a05STakashi Sakamoto { 319eb7b3a05STakashi Sakamoto struct cmp_connection *conn; 320eb7b3a05STakashi Sakamoto bool used; 321eb7b3a05STakashi Sakamoto int err; 322eb7b3a05STakashi Sakamoto 323eb7b3a05STakashi Sakamoto if (s == &bebob->tx_stream) 324eb7b3a05STakashi Sakamoto conn = &bebob->out_conn; 325eb7b3a05STakashi Sakamoto else 326eb7b3a05STakashi Sakamoto conn = &bebob->in_conn; 327eb7b3a05STakashi Sakamoto 328eb7b3a05STakashi Sakamoto err = cmp_connection_check_used(conn, &used); 329eb7b3a05STakashi Sakamoto if ((err >= 0) && used && !amdtp_stream_running(s)) { 330eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 331eb7b3a05STakashi Sakamoto "Connection established by others: %cPCR[%d]\n", 332eb7b3a05STakashi Sakamoto (conn->direction == CMP_OUTPUT) ? 'o' : 'i', 333eb7b3a05STakashi Sakamoto conn->pcr_index); 334eb7b3a05STakashi Sakamoto err = -EBUSY; 335eb7b3a05STakashi Sakamoto } 336eb7b3a05STakashi Sakamoto 337eb7b3a05STakashi Sakamoto return err; 338eb7b3a05STakashi Sakamoto } 339eb7b3a05STakashi Sakamoto 340eb7b3a05STakashi Sakamoto static int 341eb7b3a05STakashi Sakamoto make_both_connections(struct snd_bebob *bebob, unsigned int rate) 342eb7b3a05STakashi Sakamoto { 343b6bc8123STakashi Sakamoto int index, pcm_channels, midi_channels, err = 0; 344b6bc8123STakashi Sakamoto 345b6bc8123STakashi Sakamoto if (bebob->connected) 346b6bc8123STakashi Sakamoto goto end; 347eb7b3a05STakashi Sakamoto 348eb7b3a05STakashi Sakamoto /* confirm params for both streams */ 349eb7b3a05STakashi Sakamoto index = get_formation_index(rate); 350eb7b3a05STakashi Sakamoto pcm_channels = bebob->tx_stream_formations[index].pcm; 351eb7b3a05STakashi Sakamoto midi_channels = bebob->tx_stream_formations[index].midi; 352eb7b3a05STakashi Sakamoto amdtp_stream_set_parameters(&bebob->tx_stream, 353eb7b3a05STakashi Sakamoto rate, pcm_channels, midi_channels * 8); 354eb7b3a05STakashi Sakamoto pcm_channels = bebob->rx_stream_formations[index].pcm; 355eb7b3a05STakashi Sakamoto midi_channels = bebob->rx_stream_formations[index].midi; 356eb7b3a05STakashi Sakamoto amdtp_stream_set_parameters(&bebob->rx_stream, 357eb7b3a05STakashi Sakamoto rate, pcm_channels, midi_channels * 8); 358eb7b3a05STakashi Sakamoto 359eb7b3a05STakashi Sakamoto /* establish connections for both streams */ 360eb7b3a05STakashi Sakamoto err = cmp_connection_establish(&bebob->out_conn, 361eb7b3a05STakashi Sakamoto amdtp_stream_get_max_payload(&bebob->tx_stream)); 362eb7b3a05STakashi Sakamoto if (err < 0) 363eb7b3a05STakashi Sakamoto goto end; 364eb7b3a05STakashi Sakamoto err = cmp_connection_establish(&bebob->in_conn, 365eb7b3a05STakashi Sakamoto amdtp_stream_get_max_payload(&bebob->rx_stream)); 366b6bc8123STakashi Sakamoto if (err < 0) { 367eb7b3a05STakashi Sakamoto cmp_connection_break(&bebob->out_conn); 368b6bc8123STakashi Sakamoto goto end; 369b6bc8123STakashi Sakamoto } 370b6bc8123STakashi Sakamoto 371b6bc8123STakashi Sakamoto bebob->connected = true; 372eb7b3a05STakashi Sakamoto end: 373eb7b3a05STakashi Sakamoto return err; 374eb7b3a05STakashi Sakamoto } 375eb7b3a05STakashi Sakamoto 376eb7b3a05STakashi Sakamoto static void 377eb7b3a05STakashi Sakamoto break_both_connections(struct snd_bebob *bebob) 378eb7b3a05STakashi Sakamoto { 379eb7b3a05STakashi Sakamoto cmp_connection_break(&bebob->in_conn); 380eb7b3a05STakashi Sakamoto cmp_connection_break(&bebob->out_conn); 381b6bc8123STakashi Sakamoto 382b6bc8123STakashi Sakamoto bebob->connected = false; 383eb7b3a05STakashi Sakamoto } 384eb7b3a05STakashi Sakamoto 385eb7b3a05STakashi Sakamoto static void 386eb7b3a05STakashi Sakamoto destroy_both_connections(struct snd_bebob *bebob) 387eb7b3a05STakashi Sakamoto { 388eb7b3a05STakashi Sakamoto break_both_connections(bebob); 389eb7b3a05STakashi Sakamoto 390eb7b3a05STakashi Sakamoto cmp_connection_destroy(&bebob->in_conn); 391eb7b3a05STakashi Sakamoto cmp_connection_destroy(&bebob->out_conn); 392eb7b3a05STakashi Sakamoto } 393eb7b3a05STakashi Sakamoto 394eb7b3a05STakashi Sakamoto static int 395eb7b3a05STakashi Sakamoto get_sync_mode(struct snd_bebob *bebob, enum cip_flags *sync_mode) 396eb7b3a05STakashi Sakamoto { 397eb7b3a05STakashi Sakamoto /* currently this module doesn't support SYT-Match mode */ 398eb7b3a05STakashi Sakamoto *sync_mode = CIP_SYNC_TO_DEVICE; 399eb7b3a05STakashi Sakamoto return 0; 400eb7b3a05STakashi Sakamoto } 401eb7b3a05STakashi Sakamoto 402eb7b3a05STakashi Sakamoto static int 403eb7b3a05STakashi Sakamoto start_stream(struct snd_bebob *bebob, struct amdtp_stream *stream, 404eb7b3a05STakashi Sakamoto unsigned int rate) 405eb7b3a05STakashi Sakamoto { 406eb7b3a05STakashi Sakamoto struct cmp_connection *conn; 407eb7b3a05STakashi Sakamoto int err = 0; 408eb7b3a05STakashi Sakamoto 409eb7b3a05STakashi Sakamoto if (stream == &bebob->rx_stream) 410eb7b3a05STakashi Sakamoto conn = &bebob->in_conn; 411eb7b3a05STakashi Sakamoto else 412eb7b3a05STakashi Sakamoto conn = &bebob->out_conn; 413eb7b3a05STakashi Sakamoto 414eb7b3a05STakashi Sakamoto /* channel mapping */ 415eb7b3a05STakashi Sakamoto err = map_data_channels(bebob, stream); 416eb7b3a05STakashi Sakamoto if (err < 0) 417eb7b3a05STakashi Sakamoto goto end; 418eb7b3a05STakashi Sakamoto 419eb7b3a05STakashi Sakamoto /* start amdtp stream */ 420eb7b3a05STakashi Sakamoto err = amdtp_stream_start(stream, 421eb7b3a05STakashi Sakamoto conn->resources.channel, 422eb7b3a05STakashi Sakamoto conn->speed); 423eb7b3a05STakashi Sakamoto end: 424eb7b3a05STakashi Sakamoto return err; 425eb7b3a05STakashi Sakamoto } 426eb7b3a05STakashi Sakamoto 427eb7b3a05STakashi Sakamoto int snd_bebob_stream_init_duplex(struct snd_bebob *bebob) 428eb7b3a05STakashi Sakamoto { 429eb7b3a05STakashi Sakamoto int err; 430eb7b3a05STakashi Sakamoto 431eb7b3a05STakashi Sakamoto err = init_both_connections(bebob); 432eb7b3a05STakashi Sakamoto if (err < 0) 433eb7b3a05STakashi Sakamoto goto end; 434eb7b3a05STakashi Sakamoto 435eb7b3a05STakashi Sakamoto err = amdtp_stream_init(&bebob->tx_stream, bebob->unit, 436eb7b3a05STakashi Sakamoto AMDTP_IN_STREAM, CIP_BLOCKING); 437eb7b3a05STakashi Sakamoto if (err < 0) { 438eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->tx_stream); 439eb7b3a05STakashi Sakamoto destroy_both_connections(bebob); 440eb7b3a05STakashi Sakamoto goto end; 441eb7b3a05STakashi Sakamoto } 442b6bc8123STakashi Sakamoto /* See comments in next function */ 443b6bc8123STakashi Sakamoto init_completion(&bebob->bus_reset); 444b6bc8123STakashi Sakamoto bebob->tx_stream.flags |= CIP_SKIP_INIT_DBC_CHECK; 445eb7b3a05STakashi Sakamoto 446eb7b3a05STakashi Sakamoto err = amdtp_stream_init(&bebob->rx_stream, bebob->unit, 447eb7b3a05STakashi Sakamoto AMDTP_OUT_STREAM, CIP_BLOCKING); 448eb7b3a05STakashi Sakamoto if (err < 0) { 449eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->tx_stream); 450eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->rx_stream); 451eb7b3a05STakashi Sakamoto destroy_both_connections(bebob); 452eb7b3a05STakashi Sakamoto } 453eb7b3a05STakashi Sakamoto end: 454eb7b3a05STakashi Sakamoto return err; 455eb7b3a05STakashi Sakamoto } 456eb7b3a05STakashi Sakamoto 457eb7b3a05STakashi Sakamoto int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, int rate) 458eb7b3a05STakashi Sakamoto { 4591fc9522aSTakashi Sakamoto struct snd_bebob_rate_spec *rate_spec = bebob->spec->rate; 460eb7b3a05STakashi Sakamoto struct amdtp_stream *master, *slave; 461eb7b3a05STakashi Sakamoto atomic_t *slave_substreams; 462eb7b3a05STakashi Sakamoto enum cip_flags sync_mode; 463eb7b3a05STakashi Sakamoto unsigned int curr_rate; 464b6bc8123STakashi Sakamoto bool updated = false; 465eb7b3a05STakashi Sakamoto int err = 0; 466eb7b3a05STakashi Sakamoto 467b6bc8123STakashi Sakamoto /* 468b6bc8123STakashi Sakamoto * Normal BeBoB firmware has a quirk at bus reset to transmits packets 469b6bc8123STakashi Sakamoto * with discontinuous value in dbc field. 470b6bc8123STakashi Sakamoto * 471b6bc8123STakashi Sakamoto * This 'struct completion' is used to call .update() at first to update 472b6bc8123STakashi Sakamoto * connections/streams. Next following codes handle streaming error. 473b6bc8123STakashi Sakamoto */ 474b6bc8123STakashi Sakamoto if (amdtp_streaming_error(&bebob->tx_stream)) { 475b6bc8123STakashi Sakamoto if (completion_done(&bebob->bus_reset)) 476b6bc8123STakashi Sakamoto reinit_completion(&bebob->bus_reset); 477b6bc8123STakashi Sakamoto 478b6bc8123STakashi Sakamoto updated = (wait_for_completion_interruptible_timeout( 479b6bc8123STakashi Sakamoto &bebob->bus_reset, 480b6bc8123STakashi Sakamoto msecs_to_jiffies(FW_ISO_RESOURCE_DELAY)) > 0); 481b6bc8123STakashi Sakamoto } 482b6bc8123STakashi Sakamoto 483eb7b3a05STakashi Sakamoto mutex_lock(&bebob->mutex); 484eb7b3a05STakashi Sakamoto 485eb7b3a05STakashi Sakamoto /* Need no substreams */ 486eb7b3a05STakashi Sakamoto if (atomic_read(&bebob->playback_substreams) == 0 && 487eb7b3a05STakashi Sakamoto atomic_read(&bebob->capture_substreams) == 0) 488eb7b3a05STakashi Sakamoto goto end; 489eb7b3a05STakashi Sakamoto 490eb7b3a05STakashi Sakamoto err = get_sync_mode(bebob, &sync_mode); 491eb7b3a05STakashi Sakamoto if (err < 0) 492eb7b3a05STakashi Sakamoto goto end; 493eb7b3a05STakashi Sakamoto if (sync_mode == CIP_SYNC_TO_DEVICE) { 494eb7b3a05STakashi Sakamoto master = &bebob->tx_stream; 495eb7b3a05STakashi Sakamoto slave = &bebob->rx_stream; 496eb7b3a05STakashi Sakamoto slave_substreams = &bebob->playback_substreams; 497eb7b3a05STakashi Sakamoto } else { 498eb7b3a05STakashi Sakamoto master = &bebob->rx_stream; 499eb7b3a05STakashi Sakamoto slave = &bebob->tx_stream; 500eb7b3a05STakashi Sakamoto slave_substreams = &bebob->capture_substreams; 501eb7b3a05STakashi Sakamoto } 502eb7b3a05STakashi Sakamoto 503eb7b3a05STakashi Sakamoto /* 504eb7b3a05STakashi Sakamoto * Considering JACK/FFADO streaming: 505eb7b3a05STakashi Sakamoto * TODO: This can be removed hwdep functionality becomes popular. 506eb7b3a05STakashi Sakamoto */ 507eb7b3a05STakashi Sakamoto err = check_connection_used_by_others(bebob, master); 508eb7b3a05STakashi Sakamoto if (err < 0) 509eb7b3a05STakashi Sakamoto goto end; 510eb7b3a05STakashi Sakamoto 511b6bc8123STakashi Sakamoto /* 512b6bc8123STakashi Sakamoto * packet queueing error or detecting discontinuity 513b6bc8123STakashi Sakamoto * 514b6bc8123STakashi Sakamoto * At bus reset, connections should not be broken here. So streams need 515b6bc8123STakashi Sakamoto * to be re-started. This is a reason to use SKIP_INIT_DBC_CHECK flag. 516b6bc8123STakashi Sakamoto */ 517b6bc8123STakashi Sakamoto if (amdtp_streaming_error(master)) 518eb7b3a05STakashi Sakamoto amdtp_stream_stop(master); 519eb7b3a05STakashi Sakamoto if (amdtp_streaming_error(slave)) 520eb7b3a05STakashi Sakamoto amdtp_stream_stop(slave); 521b6bc8123STakashi Sakamoto if (!updated && 522b6bc8123STakashi Sakamoto !amdtp_stream_running(master) && !amdtp_stream_running(slave)) 523b6bc8123STakashi Sakamoto break_both_connections(bebob); 524eb7b3a05STakashi Sakamoto 525eb7b3a05STakashi Sakamoto /* stop streams if rate is different */ 5261fc9522aSTakashi Sakamoto err = rate_spec->get(bebob, &curr_rate); 527eb7b3a05STakashi Sakamoto if (err < 0) { 528eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 529eb7b3a05STakashi Sakamoto "fail to get sampling rate: %d\n", err); 530eb7b3a05STakashi Sakamoto goto end; 531eb7b3a05STakashi Sakamoto } 532eb7b3a05STakashi Sakamoto if (rate == 0) 533eb7b3a05STakashi Sakamoto rate = curr_rate; 534eb7b3a05STakashi Sakamoto if (rate != curr_rate) { 535eb7b3a05STakashi Sakamoto amdtp_stream_stop(master); 536eb7b3a05STakashi Sakamoto amdtp_stream_stop(slave); 537eb7b3a05STakashi Sakamoto break_both_connections(bebob); 538eb7b3a05STakashi Sakamoto } 539eb7b3a05STakashi Sakamoto 540eb7b3a05STakashi Sakamoto /* master should be always running */ 541eb7b3a05STakashi Sakamoto if (!amdtp_stream_running(master)) { 542eb7b3a05STakashi Sakamoto amdtp_stream_set_sync(sync_mode, master, slave); 543eb7b3a05STakashi Sakamoto bebob->master = master; 544eb7b3a05STakashi Sakamoto 545eb7b3a05STakashi Sakamoto /* 546eb7b3a05STakashi Sakamoto * NOTE: 547eb7b3a05STakashi Sakamoto * If establishing connections at first, Yamaha GO46 548eb7b3a05STakashi Sakamoto * (and maybe Terratec X24) don't generate sound. 549eb7b3a05STakashi Sakamoto */ 5501fc9522aSTakashi Sakamoto err = rate_spec->set(bebob, rate); 551eb7b3a05STakashi Sakamoto if (err < 0) { 552eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 553eb7b3a05STakashi Sakamoto "fail to set sampling rate: %d\n", 554eb7b3a05STakashi Sakamoto err); 555eb7b3a05STakashi Sakamoto goto end; 556eb7b3a05STakashi Sakamoto } 557eb7b3a05STakashi Sakamoto 558eb7b3a05STakashi Sakamoto err = make_both_connections(bebob, rate); 559eb7b3a05STakashi Sakamoto if (err < 0) 560eb7b3a05STakashi Sakamoto goto end; 561eb7b3a05STakashi Sakamoto 562eb7b3a05STakashi Sakamoto err = start_stream(bebob, master, rate); 563eb7b3a05STakashi Sakamoto if (err < 0) { 564eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 565eb7b3a05STakashi Sakamoto "fail to run AMDTP master stream:%d\n", err); 566eb7b3a05STakashi Sakamoto break_both_connections(bebob); 567eb7b3a05STakashi Sakamoto goto end; 568eb7b3a05STakashi Sakamoto } 569eb7b3a05STakashi Sakamoto 570eb7b3a05STakashi Sakamoto /* wait first callback */ 571eb7b3a05STakashi Sakamoto if (!amdtp_stream_wait_callback(master, CALLBACK_TIMEOUT)) { 572eb7b3a05STakashi Sakamoto amdtp_stream_stop(master); 573eb7b3a05STakashi Sakamoto break_both_connections(bebob); 574eb7b3a05STakashi Sakamoto err = -ETIMEDOUT; 575eb7b3a05STakashi Sakamoto goto end; 576eb7b3a05STakashi Sakamoto } 577eb7b3a05STakashi Sakamoto } 578eb7b3a05STakashi Sakamoto 579eb7b3a05STakashi Sakamoto /* start slave if needed */ 580eb7b3a05STakashi Sakamoto if (atomic_read(slave_substreams) > 0 && !amdtp_stream_running(slave)) { 581eb7b3a05STakashi Sakamoto err = start_stream(bebob, slave, rate); 582eb7b3a05STakashi Sakamoto if (err < 0) { 583eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 584eb7b3a05STakashi Sakamoto "fail to run AMDTP slave stream:%d\n", err); 585eb7b3a05STakashi Sakamoto amdtp_stream_stop(master); 586eb7b3a05STakashi Sakamoto break_both_connections(bebob); 587eb7b3a05STakashi Sakamoto goto end; 588eb7b3a05STakashi Sakamoto } 589eb7b3a05STakashi Sakamoto 590eb7b3a05STakashi Sakamoto /* wait first callback */ 591eb7b3a05STakashi Sakamoto if (!amdtp_stream_wait_callback(slave, CALLBACK_TIMEOUT)) { 592eb7b3a05STakashi Sakamoto amdtp_stream_stop(slave); 593eb7b3a05STakashi Sakamoto amdtp_stream_stop(master); 594eb7b3a05STakashi Sakamoto break_both_connections(bebob); 595eb7b3a05STakashi Sakamoto err = -ETIMEDOUT; 596eb7b3a05STakashi Sakamoto } 597eb7b3a05STakashi Sakamoto } 598eb7b3a05STakashi Sakamoto end: 599eb7b3a05STakashi Sakamoto mutex_unlock(&bebob->mutex); 600eb7b3a05STakashi Sakamoto return err; 601eb7b3a05STakashi Sakamoto } 602eb7b3a05STakashi Sakamoto 603eb7b3a05STakashi Sakamoto void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob) 604eb7b3a05STakashi Sakamoto { 605eb7b3a05STakashi Sakamoto struct amdtp_stream *master, *slave; 606eb7b3a05STakashi Sakamoto atomic_t *master_substreams, *slave_substreams; 607eb7b3a05STakashi Sakamoto 608eb7b3a05STakashi Sakamoto mutex_lock(&bebob->mutex); 609eb7b3a05STakashi Sakamoto 610eb7b3a05STakashi Sakamoto if (bebob->master == &bebob->rx_stream) { 611eb7b3a05STakashi Sakamoto slave = &bebob->tx_stream; 612eb7b3a05STakashi Sakamoto master = &bebob->rx_stream; 613eb7b3a05STakashi Sakamoto slave_substreams = &bebob->capture_substreams; 614eb7b3a05STakashi Sakamoto master_substreams = &bebob->playback_substreams; 615eb7b3a05STakashi Sakamoto } else { 616eb7b3a05STakashi Sakamoto slave = &bebob->rx_stream; 617eb7b3a05STakashi Sakamoto master = &bebob->tx_stream; 618eb7b3a05STakashi Sakamoto slave_substreams = &bebob->playback_substreams; 619eb7b3a05STakashi Sakamoto master_substreams = &bebob->capture_substreams; 620eb7b3a05STakashi Sakamoto } 621eb7b3a05STakashi Sakamoto 622eb7b3a05STakashi Sakamoto if (atomic_read(slave_substreams) == 0) { 623eb7b3a05STakashi Sakamoto amdtp_stream_pcm_abort(slave); 624eb7b3a05STakashi Sakamoto amdtp_stream_stop(slave); 625eb7b3a05STakashi Sakamoto 626eb7b3a05STakashi Sakamoto if (atomic_read(master_substreams) == 0) { 627eb7b3a05STakashi Sakamoto amdtp_stream_pcm_abort(master); 628eb7b3a05STakashi Sakamoto amdtp_stream_stop(master); 629eb7b3a05STakashi Sakamoto break_both_connections(bebob); 630eb7b3a05STakashi Sakamoto } 631eb7b3a05STakashi Sakamoto } 632eb7b3a05STakashi Sakamoto 633eb7b3a05STakashi Sakamoto mutex_unlock(&bebob->mutex); 634eb7b3a05STakashi Sakamoto } 635eb7b3a05STakashi Sakamoto 636eb7b3a05STakashi Sakamoto void snd_bebob_stream_update_duplex(struct snd_bebob *bebob) 637eb7b3a05STakashi Sakamoto { 638eb7b3a05STakashi Sakamoto /* vs. XRUN recovery due to discontinuity at bus reset */ 639eb7b3a05STakashi Sakamoto mutex_lock(&bebob->mutex); 640eb7b3a05STakashi Sakamoto 641eb7b3a05STakashi Sakamoto if ((cmp_connection_update(&bebob->in_conn) < 0) || 642eb7b3a05STakashi Sakamoto (cmp_connection_update(&bebob->out_conn) < 0)) { 643eb7b3a05STakashi Sakamoto amdtp_stream_pcm_abort(&bebob->rx_stream); 644eb7b3a05STakashi Sakamoto amdtp_stream_pcm_abort(&bebob->tx_stream); 645eb7b3a05STakashi Sakamoto amdtp_stream_stop(&bebob->rx_stream); 646eb7b3a05STakashi Sakamoto amdtp_stream_stop(&bebob->tx_stream); 647eb7b3a05STakashi Sakamoto break_both_connections(bebob); 648eb7b3a05STakashi Sakamoto } else { 649eb7b3a05STakashi Sakamoto amdtp_stream_update(&bebob->rx_stream); 650eb7b3a05STakashi Sakamoto amdtp_stream_update(&bebob->tx_stream); 651eb7b3a05STakashi Sakamoto } 652eb7b3a05STakashi Sakamoto 653b6bc8123STakashi Sakamoto /* wake up stream_start_duplex() */ 654b6bc8123STakashi Sakamoto if (!completion_done(&bebob->bus_reset)) 655b6bc8123STakashi Sakamoto complete_all(&bebob->bus_reset); 656b6bc8123STakashi Sakamoto 657eb7b3a05STakashi Sakamoto mutex_unlock(&bebob->mutex); 658eb7b3a05STakashi Sakamoto } 659eb7b3a05STakashi Sakamoto 660eb7b3a05STakashi Sakamoto void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob) 661eb7b3a05STakashi Sakamoto { 662eb7b3a05STakashi Sakamoto mutex_lock(&bebob->mutex); 663eb7b3a05STakashi Sakamoto 664eb7b3a05STakashi Sakamoto amdtp_stream_pcm_abort(&bebob->rx_stream); 665eb7b3a05STakashi Sakamoto amdtp_stream_pcm_abort(&bebob->tx_stream); 666eb7b3a05STakashi Sakamoto 667eb7b3a05STakashi Sakamoto amdtp_stream_stop(&bebob->rx_stream); 668eb7b3a05STakashi Sakamoto amdtp_stream_stop(&bebob->tx_stream); 669eb7b3a05STakashi Sakamoto 670eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->rx_stream); 671eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->tx_stream); 672eb7b3a05STakashi Sakamoto 673eb7b3a05STakashi Sakamoto destroy_both_connections(bebob); 674eb7b3a05STakashi Sakamoto 675eb7b3a05STakashi Sakamoto mutex_unlock(&bebob->mutex); 676eb7b3a05STakashi Sakamoto } 677eb7b3a05STakashi Sakamoto 678eb7b3a05STakashi Sakamoto /* 679eb7b3a05STakashi Sakamoto * See: Table 50: Extended Stream Format Info Format Hierarchy Level 2’ 680eb7b3a05STakashi Sakamoto * in Additional AVC commands (Nov 2003, BridgeCo) 681eb7b3a05STakashi Sakamoto * Also 'Clause 12 AM824 sequence adaption layers' in IEC 61883-6:2005 682eb7b3a05STakashi Sakamoto */ 683eb7b3a05STakashi Sakamoto static int 684eb7b3a05STakashi Sakamoto parse_stream_formation(u8 *buf, unsigned int len, 685eb7b3a05STakashi Sakamoto struct snd_bebob_stream_formation *formation) 686eb7b3a05STakashi Sakamoto { 687eb7b3a05STakashi Sakamoto unsigned int i, e, channels, format; 688eb7b3a05STakashi Sakamoto 689eb7b3a05STakashi Sakamoto /* 690eb7b3a05STakashi Sakamoto * this module can support a hierarchy combination that: 691eb7b3a05STakashi Sakamoto * Root: Audio and Music (0x90) 692eb7b3a05STakashi Sakamoto * Level 1: AM824 Compound (0x40) 693eb7b3a05STakashi Sakamoto */ 694eb7b3a05STakashi Sakamoto if ((buf[0] != 0x90) || (buf[1] != 0x40)) 695eb7b3a05STakashi Sakamoto return -ENOSYS; 696eb7b3a05STakashi Sakamoto 697eb7b3a05STakashi Sakamoto /* check sampling rate */ 698eb7b3a05STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(bridgeco_freq_table); i++) { 699eb7b3a05STakashi Sakamoto if (buf[2] == bridgeco_freq_table[i]) 700eb7b3a05STakashi Sakamoto break; 701eb7b3a05STakashi Sakamoto } 702eb7b3a05STakashi Sakamoto if (i == sizeof(bridgeco_freq_table)) 703eb7b3a05STakashi Sakamoto return -ENOSYS; 704eb7b3a05STakashi Sakamoto 705eb7b3a05STakashi Sakamoto /* Avoid double count by different entries for the same rate. */ 706eb7b3a05STakashi Sakamoto memset(&formation[i], 0, sizeof(struct snd_bebob_stream_formation)); 707eb7b3a05STakashi Sakamoto 708eb7b3a05STakashi Sakamoto for (e = 0; e < buf[4]; e++) { 709eb7b3a05STakashi Sakamoto channels = buf[5 + e * 2]; 710eb7b3a05STakashi Sakamoto format = buf[6 + e * 2]; 711eb7b3a05STakashi Sakamoto 712eb7b3a05STakashi Sakamoto switch (format) { 713eb7b3a05STakashi Sakamoto /* IEC 60958-3, currently handle as MBLA */ 714eb7b3a05STakashi Sakamoto case 0x00: 715eb7b3a05STakashi Sakamoto /* Multi bit linear audio */ 716eb7b3a05STakashi Sakamoto case 0x06: /* Raw */ 717eb7b3a05STakashi Sakamoto formation[i].pcm += channels; 718eb7b3a05STakashi Sakamoto break; 719eb7b3a05STakashi Sakamoto /* MIDI Conformant */ 720eb7b3a05STakashi Sakamoto case 0x0d: 721eb7b3a05STakashi Sakamoto formation[i].midi += channels; 722eb7b3a05STakashi Sakamoto break; 723eb7b3a05STakashi Sakamoto /* IEC 61937-3 to 7 */ 724eb7b3a05STakashi Sakamoto case 0x01: 725eb7b3a05STakashi Sakamoto case 0x02: 726eb7b3a05STakashi Sakamoto case 0x03: 727eb7b3a05STakashi Sakamoto case 0x04: 728eb7b3a05STakashi Sakamoto case 0x05: 729eb7b3a05STakashi Sakamoto /* Multi bit linear audio */ 730eb7b3a05STakashi Sakamoto case 0x07: /* DVD-Audio */ 731eb7b3a05STakashi Sakamoto case 0x0c: /* High Precision */ 732eb7b3a05STakashi Sakamoto /* One Bit Audio */ 733eb7b3a05STakashi Sakamoto case 0x08: /* (Plain) Raw */ 734eb7b3a05STakashi Sakamoto case 0x09: /* (Plain) SACD */ 735eb7b3a05STakashi Sakamoto case 0x0a: /* (Encoded) Raw */ 736eb7b3a05STakashi Sakamoto case 0x0b: /* (Encoded) SACD */ 737eb7b3a05STakashi Sakamoto /* Synchronization Stream (Stereo Raw audio) */ 738eb7b3a05STakashi Sakamoto case 0x40: 739eb7b3a05STakashi Sakamoto /* Don't care */ 740eb7b3a05STakashi Sakamoto case 0xff: 741eb7b3a05STakashi Sakamoto default: 742eb7b3a05STakashi Sakamoto return -ENOSYS; /* not supported */ 743eb7b3a05STakashi Sakamoto } 744eb7b3a05STakashi Sakamoto } 745eb7b3a05STakashi Sakamoto 746eb7b3a05STakashi Sakamoto if (formation[i].pcm > AMDTP_MAX_CHANNELS_FOR_PCM || 747eb7b3a05STakashi Sakamoto formation[i].midi > AMDTP_MAX_CHANNELS_FOR_MIDI) 748eb7b3a05STakashi Sakamoto return -ENOSYS; 749eb7b3a05STakashi Sakamoto 750eb7b3a05STakashi Sakamoto return 0; 751eb7b3a05STakashi Sakamoto } 752eb7b3a05STakashi Sakamoto 753eb7b3a05STakashi Sakamoto static int 754eb7b3a05STakashi Sakamoto fill_stream_formations(struct snd_bebob *bebob, enum avc_bridgeco_plug_dir dir, 755eb7b3a05STakashi Sakamoto unsigned short pid) 756eb7b3a05STakashi Sakamoto { 757eb7b3a05STakashi Sakamoto u8 *buf; 758eb7b3a05STakashi Sakamoto struct snd_bebob_stream_formation *formations; 759eb7b3a05STakashi Sakamoto unsigned int len, eid; 760eb7b3a05STakashi Sakamoto u8 addr[AVC_BRIDGECO_ADDR_BYTES]; 761eb7b3a05STakashi Sakamoto int err; 762eb7b3a05STakashi Sakamoto 763eb7b3a05STakashi Sakamoto buf = kmalloc(FORMAT_MAXIMUM_LENGTH, GFP_KERNEL); 764eb7b3a05STakashi Sakamoto if (buf == NULL) 765eb7b3a05STakashi Sakamoto return -ENOMEM; 766eb7b3a05STakashi Sakamoto 767eb7b3a05STakashi Sakamoto if (dir == AVC_BRIDGECO_PLUG_DIR_IN) 768eb7b3a05STakashi Sakamoto formations = bebob->rx_stream_formations; 769eb7b3a05STakashi Sakamoto else 770eb7b3a05STakashi Sakamoto formations = bebob->tx_stream_formations; 771eb7b3a05STakashi Sakamoto 772eb7b3a05STakashi Sakamoto for (eid = 0; eid < SND_BEBOB_STRM_FMT_ENTRIES; eid++) { 773eb7b3a05STakashi Sakamoto len = FORMAT_MAXIMUM_LENGTH; 774eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, dir, 775eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, pid); 776eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_strm_fmt(bebob->unit, addr, buf, 777eb7b3a05STakashi Sakamoto &len, eid); 778eb7b3a05STakashi Sakamoto /* No entries remained. */ 779eb7b3a05STakashi Sakamoto if (err == -EINVAL && eid > 0) { 780eb7b3a05STakashi Sakamoto err = 0; 781eb7b3a05STakashi Sakamoto break; 782eb7b3a05STakashi Sakamoto } else if (err < 0) { 783eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 784eb7b3a05STakashi Sakamoto "fail to get stream format %d for isoc %s plug %d:%d\n", 785eb7b3a05STakashi Sakamoto eid, 786eb7b3a05STakashi Sakamoto (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : 787eb7b3a05STakashi Sakamoto "out", 788eb7b3a05STakashi Sakamoto pid, err); 789eb7b3a05STakashi Sakamoto break; 790eb7b3a05STakashi Sakamoto } 791eb7b3a05STakashi Sakamoto 792eb7b3a05STakashi Sakamoto err = parse_stream_formation(buf, len, formations); 793eb7b3a05STakashi Sakamoto if (err < 0) 794eb7b3a05STakashi Sakamoto break; 795eb7b3a05STakashi Sakamoto } 796eb7b3a05STakashi Sakamoto 797eb7b3a05STakashi Sakamoto kfree(buf); 798eb7b3a05STakashi Sakamoto return err; 799eb7b3a05STakashi Sakamoto } 800eb7b3a05STakashi Sakamoto 801eb7b3a05STakashi Sakamoto static int 802eb7b3a05STakashi Sakamoto seek_msu_sync_input_plug(struct snd_bebob *bebob) 803eb7b3a05STakashi Sakamoto { 804eb7b3a05STakashi Sakamoto u8 plugs[AVC_PLUG_INFO_BUF_BYTES], addr[AVC_BRIDGECO_ADDR_BYTES]; 805eb7b3a05STakashi Sakamoto unsigned int i, type; 806eb7b3a05STakashi Sakamoto int err; 807eb7b3a05STakashi Sakamoto 808eb7b3a05STakashi Sakamoto /* Get the number of Music Sub Unit for both direction. */ 809eb7b3a05STakashi Sakamoto err = avc_general_get_plug_info(bebob->unit, 0x0c, 0x00, 0x00, plugs); 810eb7b3a05STakashi Sakamoto if (err < 0) { 811eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 812eb7b3a05STakashi Sakamoto "fail to get info for MSU in/out plugs: %d\n", 813eb7b3a05STakashi Sakamoto err); 814eb7b3a05STakashi Sakamoto goto end; 815eb7b3a05STakashi Sakamoto } 816eb7b3a05STakashi Sakamoto 817eb7b3a05STakashi Sakamoto /* seek destination plugs for 'MSU sync input' */ 818eb7b3a05STakashi Sakamoto bebob->sync_input_plug = -1; 819eb7b3a05STakashi Sakamoto for (i = 0; i < plugs[0]; i++) { 820eb7b3a05STakashi Sakamoto avc_bridgeco_fill_msu_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, i); 821eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 822eb7b3a05STakashi Sakamoto if (err < 0) { 823eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 824eb7b3a05STakashi Sakamoto "fail to get type for MSU in plug %d: %d\n", 825eb7b3a05STakashi Sakamoto i, err); 826eb7b3a05STakashi Sakamoto goto end; 827eb7b3a05STakashi Sakamoto } 828eb7b3a05STakashi Sakamoto 829eb7b3a05STakashi Sakamoto if (type == AVC_BRIDGECO_PLUG_TYPE_SYNC) { 830eb7b3a05STakashi Sakamoto bebob->sync_input_plug = i; 831eb7b3a05STakashi Sakamoto break; 832eb7b3a05STakashi Sakamoto } 833eb7b3a05STakashi Sakamoto } 834eb7b3a05STakashi Sakamoto end: 835eb7b3a05STakashi Sakamoto return err; 836eb7b3a05STakashi Sakamoto } 837eb7b3a05STakashi Sakamoto 838eb7b3a05STakashi Sakamoto int snd_bebob_stream_discover(struct snd_bebob *bebob) 839eb7b3a05STakashi Sakamoto { 8401fc9522aSTakashi Sakamoto struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock; 841eb7b3a05STakashi Sakamoto u8 plugs[AVC_PLUG_INFO_BUF_BYTES], addr[AVC_BRIDGECO_ADDR_BYTES]; 842eb7b3a05STakashi Sakamoto enum avc_bridgeco_plug_type type; 843eb7b3a05STakashi Sakamoto unsigned int i; 844eb7b3a05STakashi Sakamoto int err; 845eb7b3a05STakashi Sakamoto 846eb7b3a05STakashi Sakamoto /* the number of plugs for isoc in/out, ext in/out */ 847eb7b3a05STakashi Sakamoto err = avc_general_get_plug_info(bebob->unit, 0x1f, 0x07, 0x00, plugs); 848eb7b3a05STakashi Sakamoto if (err < 0) { 849eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 850eb7b3a05STakashi Sakamoto "fail to get info for isoc/external in/out plugs: %d\n", 851eb7b3a05STakashi Sakamoto err); 852eb7b3a05STakashi Sakamoto goto end; 853eb7b3a05STakashi Sakamoto } 854eb7b3a05STakashi Sakamoto 855eb7b3a05STakashi Sakamoto /* 856eb7b3a05STakashi Sakamoto * This module supports at least one isoc input plug and one isoc 857eb7b3a05STakashi Sakamoto * output plug. 858eb7b3a05STakashi Sakamoto */ 859eb7b3a05STakashi Sakamoto if ((plugs[0] == 0) || (plugs[1] == 0)) { 860eb7b3a05STakashi Sakamoto err = -ENOSYS; 861eb7b3a05STakashi Sakamoto goto end; 862eb7b3a05STakashi Sakamoto } 863eb7b3a05STakashi Sakamoto 864eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, 865eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 866eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 867eb7b3a05STakashi Sakamoto if (err < 0) { 868eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 869eb7b3a05STakashi Sakamoto "fail to get type for isoc in plug 0: %d\n", err); 870eb7b3a05STakashi Sakamoto goto end; 871eb7b3a05STakashi Sakamoto } else if (type != AVC_BRIDGECO_PLUG_TYPE_ISOC) { 872eb7b3a05STakashi Sakamoto err = -ENOSYS; 873eb7b3a05STakashi Sakamoto goto end; 874eb7b3a05STakashi Sakamoto } 875eb7b3a05STakashi Sakamoto err = fill_stream_formations(bebob, AVC_BRIDGECO_PLUG_DIR_IN, 0); 876eb7b3a05STakashi Sakamoto if (err < 0) 877eb7b3a05STakashi Sakamoto goto end; 878eb7b3a05STakashi Sakamoto 879eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_OUT, 880eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 881eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 882eb7b3a05STakashi Sakamoto if (err < 0) { 883eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 884eb7b3a05STakashi Sakamoto "fail to get type for isoc out plug 0: %d\n", err); 885eb7b3a05STakashi Sakamoto goto end; 886eb7b3a05STakashi Sakamoto } else if (type != AVC_BRIDGECO_PLUG_TYPE_ISOC) { 887eb7b3a05STakashi Sakamoto err = -ENOSYS; 888eb7b3a05STakashi Sakamoto goto end; 889eb7b3a05STakashi Sakamoto } 890eb7b3a05STakashi Sakamoto err = fill_stream_formations(bebob, AVC_BRIDGECO_PLUG_DIR_OUT, 0); 891eb7b3a05STakashi Sakamoto if (err < 0) 892eb7b3a05STakashi Sakamoto goto end; 893eb7b3a05STakashi Sakamoto 894eb7b3a05STakashi Sakamoto /* count external input plugs for MIDI */ 895eb7b3a05STakashi Sakamoto bebob->midi_input_ports = 0; 896eb7b3a05STakashi Sakamoto for (i = 0; i < plugs[2]; i++) { 897eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, 898eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_EXT, i); 899eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 900eb7b3a05STakashi Sakamoto if (err < 0) { 901eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 902eb7b3a05STakashi Sakamoto "fail to get type for external in plug %d: %d\n", 903eb7b3a05STakashi Sakamoto i, err); 904eb7b3a05STakashi Sakamoto goto end; 905eb7b3a05STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI) { 906eb7b3a05STakashi Sakamoto bebob->midi_input_ports++; 907eb7b3a05STakashi Sakamoto } 908eb7b3a05STakashi Sakamoto } 909eb7b3a05STakashi Sakamoto 910eb7b3a05STakashi Sakamoto /* count external output plugs for MIDI */ 911eb7b3a05STakashi Sakamoto bebob->midi_output_ports = 0; 912eb7b3a05STakashi Sakamoto for (i = 0; i < plugs[3]; i++) { 913eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_OUT, 914eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_EXT, i); 915eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 916eb7b3a05STakashi Sakamoto if (err < 0) { 917eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 918eb7b3a05STakashi Sakamoto "fail to get type for external out plug %d: %d\n", 919eb7b3a05STakashi Sakamoto i, err); 920eb7b3a05STakashi Sakamoto goto end; 921eb7b3a05STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI) { 922eb7b3a05STakashi Sakamoto bebob->midi_output_ports++; 923eb7b3a05STakashi Sakamoto } 924eb7b3a05STakashi Sakamoto } 925eb7b3a05STakashi Sakamoto 926eb7b3a05STakashi Sakamoto /* for check source of clock later */ 9271fc9522aSTakashi Sakamoto if (!clk_spec) 928eb7b3a05STakashi Sakamoto err = seek_msu_sync_input_plug(bebob); 929eb7b3a05STakashi Sakamoto end: 930eb7b3a05STakashi Sakamoto return err; 931eb7b3a05STakashi Sakamoto } 932618eabeaSTakashi Sakamoto 933618eabeaSTakashi Sakamoto void snd_bebob_stream_lock_changed(struct snd_bebob *bebob) 934618eabeaSTakashi Sakamoto { 935618eabeaSTakashi Sakamoto bebob->dev_lock_changed = true; 936618eabeaSTakashi Sakamoto wake_up(&bebob->hwdep_wait); 937618eabeaSTakashi Sakamoto } 938618eabeaSTakashi Sakamoto 939618eabeaSTakashi Sakamoto int snd_bebob_stream_lock_try(struct snd_bebob *bebob) 940618eabeaSTakashi Sakamoto { 941618eabeaSTakashi Sakamoto int err; 942618eabeaSTakashi Sakamoto 943618eabeaSTakashi Sakamoto spin_lock_irq(&bebob->lock); 944618eabeaSTakashi Sakamoto 945618eabeaSTakashi Sakamoto /* user land lock this */ 946618eabeaSTakashi Sakamoto if (bebob->dev_lock_count < 0) { 947618eabeaSTakashi Sakamoto err = -EBUSY; 948618eabeaSTakashi Sakamoto goto end; 949618eabeaSTakashi Sakamoto } 950618eabeaSTakashi Sakamoto 951618eabeaSTakashi Sakamoto /* this is the first time */ 952618eabeaSTakashi Sakamoto if (bebob->dev_lock_count++ == 0) 953618eabeaSTakashi Sakamoto snd_bebob_stream_lock_changed(bebob); 954618eabeaSTakashi Sakamoto err = 0; 955618eabeaSTakashi Sakamoto end: 956618eabeaSTakashi Sakamoto spin_unlock_irq(&bebob->lock); 957618eabeaSTakashi Sakamoto return err; 958618eabeaSTakashi Sakamoto } 959618eabeaSTakashi Sakamoto 960618eabeaSTakashi Sakamoto void snd_bebob_stream_lock_release(struct snd_bebob *bebob) 961618eabeaSTakashi Sakamoto { 962618eabeaSTakashi Sakamoto spin_lock_irq(&bebob->lock); 963618eabeaSTakashi Sakamoto 964618eabeaSTakashi Sakamoto if (WARN_ON(bebob->dev_lock_count <= 0)) 965618eabeaSTakashi Sakamoto goto end; 966618eabeaSTakashi Sakamoto if (--bebob->dev_lock_count == 0) 967618eabeaSTakashi Sakamoto snd_bebob_stream_lock_changed(bebob); 968618eabeaSTakashi Sakamoto end: 969618eabeaSTakashi Sakamoto spin_unlock_irq(&bebob->lock); 970618eabeaSTakashi Sakamoto } 971