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 119a73195eSTakashi Sakamoto #define CALLBACK_TIMEOUT 2000 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 1193e254b16STakashi Sakamoto int snd_bebob_stream_get_clock_src(struct snd_bebob *bebob, 1203e254b16STakashi Sakamoto enum snd_bebob_clock_type *src) 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; 1255a668812STakashi Sakamoto enum avc_bridgeco_plug_type type; 126eb7b3a05STakashi Sakamoto int err = 0; 127eb7b3a05STakashi Sakamoto 1281fc9522aSTakashi Sakamoto /* 1.The device has its own operation to switch source of clock */ 1291fc9522aSTakashi Sakamoto if (clk_spec) { 1301fc9522aSTakashi Sakamoto err = clk_spec->get(bebob, &id); 131d1d0b6b6SChristian Vogel if (err < 0) { 1321fc9522aSTakashi Sakamoto dev_err(&bebob->unit->device, 1331fc9522aSTakashi Sakamoto "fail to get clock source: %d\n", err); 134d1d0b6b6SChristian Vogel goto end; 135d1d0b6b6SChristian Vogel } 136d1d0b6b6SChristian Vogel 137d1d0b6b6SChristian Vogel if (id >= clk_spec->num) { 138d1d0b6b6SChristian Vogel dev_err(&bebob->unit->device, 139d1d0b6b6SChristian Vogel "clock source %d out of range 0..%d\n", 140d1d0b6b6SChristian Vogel id, clk_spec->num - 1); 141d1d0b6b6SChristian Vogel err = -EIO; 142d1d0b6b6SChristian Vogel goto end; 143d1d0b6b6SChristian Vogel } 144d1d0b6b6SChristian Vogel 1453e254b16STakashi Sakamoto *src = clk_spec->types[id]; 1461fc9522aSTakashi Sakamoto goto end; 1471fc9522aSTakashi Sakamoto } 1481fc9522aSTakashi Sakamoto 149eb7b3a05STakashi Sakamoto /* 1501fc9522aSTakashi Sakamoto * 2.The device don't support to switch source of clock then assumed 151eb7b3a05STakashi Sakamoto * to use internal clock always 152eb7b3a05STakashi Sakamoto */ 153eb7b3a05STakashi Sakamoto if (bebob->sync_input_plug < 0) { 1543e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_INTERNAL; 155eb7b3a05STakashi Sakamoto goto end; 156eb7b3a05STakashi Sakamoto } 157eb7b3a05STakashi Sakamoto 158eb7b3a05STakashi Sakamoto /* 1591fc9522aSTakashi Sakamoto * 3.The device supports to switch source of clock by an usual way. 160eb7b3a05STakashi Sakamoto * Let's check input for 'Music Sub Unit Sync Input' plug. 161eb7b3a05STakashi Sakamoto */ 162eb7b3a05STakashi Sakamoto avc_bridgeco_fill_msu_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, 163eb7b3a05STakashi Sakamoto bebob->sync_input_plug); 164eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_input(bebob->unit, addr, input); 165eb7b3a05STakashi Sakamoto if (err < 0) { 166eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 167eb7b3a05STakashi Sakamoto "fail to get an input for MSU in plug %d: %d\n", 168eb7b3a05STakashi Sakamoto bebob->sync_input_plug, err); 169eb7b3a05STakashi Sakamoto goto end; 170eb7b3a05STakashi Sakamoto } 171eb7b3a05STakashi Sakamoto 172eb7b3a05STakashi Sakamoto /* 173eb7b3a05STakashi Sakamoto * If there are no input plugs, all of fields are 0xff. 174eb7b3a05STakashi Sakamoto * Here check the first field. This field is used for direction. 175eb7b3a05STakashi Sakamoto */ 176eb7b3a05STakashi Sakamoto if (input[0] == 0xff) { 1773e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_INTERNAL; 178eb7b3a05STakashi Sakamoto goto end; 179eb7b3a05STakashi Sakamoto } 180eb7b3a05STakashi Sakamoto 1815a668812STakashi Sakamoto /* The source from any output plugs is for one purpose only. */ 1825a668812STakashi Sakamoto if (input[0] == AVC_BRIDGECO_PLUG_DIR_OUT) { 183eb7b3a05STakashi Sakamoto /* 1845a668812STakashi Sakamoto * In BeBoB architecture, the source from music subunit may 1855a668812STakashi Sakamoto * bypass from oPCR[0]. This means that this source gives 1865a668812STakashi Sakamoto * synchronization to IEEE 1394 cycle start packet. 187eb7b3a05STakashi Sakamoto */ 1885a668812STakashi Sakamoto if (input[1] == AVC_BRIDGECO_PLUG_MODE_SUBUNIT && 1895a668812STakashi Sakamoto input[2] == 0x0c) { 1903e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_INTERNAL; 1915a668812STakashi Sakamoto goto end; 1925a668812STakashi Sakamoto } 1935a668812STakashi Sakamoto /* The source from any input units is for several purposes. */ 1945a668812STakashi Sakamoto } else if (input[1] == AVC_BRIDGECO_PLUG_MODE_UNIT) { 1955a668812STakashi Sakamoto if (input[2] == AVC_BRIDGECO_PLUG_UNIT_ISOC) { 1965a668812STakashi Sakamoto if (input[3] == 0x00) { 1975a668812STakashi Sakamoto /* 1985a668812STakashi Sakamoto * This source comes from iPCR[0]. This means 1995a668812STakashi Sakamoto * that presentation timestamp calculated by 2005a668812STakashi Sakamoto * SYT series of the received packets. In 2015a668812STakashi Sakamoto * short, this driver is the master of 2025a668812STakashi Sakamoto * synchronization. 2035a668812STakashi Sakamoto */ 2043e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_SYT; 2055a668812STakashi Sakamoto goto end; 2065a668812STakashi Sakamoto } else { 2075a668812STakashi Sakamoto /* 2085a668812STakashi Sakamoto * This source comes from iPCR[1-29]. This 2095a668812STakashi Sakamoto * means that the synchronization stream is not 2105a668812STakashi Sakamoto * the Audio/MIDI compound stream. 2115a668812STakashi Sakamoto */ 2123e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_EXTERNAL; 2135a668812STakashi Sakamoto goto end; 2145a668812STakashi Sakamoto } 2155a668812STakashi Sakamoto } else if (input[2] == AVC_BRIDGECO_PLUG_UNIT_EXT) { 2165a668812STakashi Sakamoto /* Check type of this plug. */ 2175a668812STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, 2185a668812STakashi Sakamoto AVC_BRIDGECO_PLUG_DIR_IN, 2195a668812STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_EXT, 2205a668812STakashi Sakamoto input[3]); 2215a668812STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, 2225a668812STakashi Sakamoto &type); 2235a668812STakashi Sakamoto if (err < 0) 2245a668812STakashi Sakamoto goto end; 2255a668812STakashi Sakamoto 2265a668812STakashi Sakamoto if (type == AVC_BRIDGECO_PLUG_TYPE_DIG) { 2275a668812STakashi Sakamoto /* 2285a668812STakashi Sakamoto * SPDIF/ADAT or sometimes (not always) word 2295a668812STakashi Sakamoto * clock. 2305a668812STakashi Sakamoto */ 2313e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_EXTERNAL; 2325a668812STakashi Sakamoto goto end; 2335a668812STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_SYNC) { 2345a668812STakashi Sakamoto /* Often word clock. */ 2353e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_EXTERNAL; 2365a668812STakashi Sakamoto goto end; 2375a668812STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_ADDITION) { 2385a668812STakashi Sakamoto /* 2395a668812STakashi Sakamoto * Not standard. 2405a668812STakashi Sakamoto * Mostly, additional internal clock. 2415a668812STakashi Sakamoto */ 2423e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_INTERNAL; 2435a668812STakashi Sakamoto goto end; 2445a668812STakashi Sakamoto } 2455a668812STakashi Sakamoto } 2465a668812STakashi Sakamoto } 2475a668812STakashi Sakamoto 2485a668812STakashi Sakamoto /* Not supported. */ 2495a668812STakashi Sakamoto err = -EIO; 250eb7b3a05STakashi Sakamoto end: 251eb7b3a05STakashi Sakamoto return err; 252eb7b3a05STakashi Sakamoto } 253eb7b3a05STakashi Sakamoto 254eb7b3a05STakashi Sakamoto static unsigned int 255eb7b3a05STakashi Sakamoto map_data_channels(struct snd_bebob *bebob, struct amdtp_stream *s) 256eb7b3a05STakashi Sakamoto { 257eb7b3a05STakashi Sakamoto unsigned int sec, sections, ch, channels; 258eb7b3a05STakashi Sakamoto unsigned int pcm, midi, location; 259eb7b3a05STakashi Sakamoto unsigned int stm_pos, sec_loc, pos; 260eb7b3a05STakashi Sakamoto u8 *buf, addr[AVC_BRIDGECO_ADDR_BYTES], type; 261eb7b3a05STakashi Sakamoto enum avc_bridgeco_plug_dir dir; 262eb7b3a05STakashi Sakamoto int err; 263eb7b3a05STakashi Sakamoto 264eb7b3a05STakashi Sakamoto /* 265eb7b3a05STakashi Sakamoto * The length of return value of this command cannot be expected. Here 266eb7b3a05STakashi Sakamoto * use the maximum length of FCP. 267eb7b3a05STakashi Sakamoto */ 268eb7b3a05STakashi Sakamoto buf = kzalloc(256, GFP_KERNEL); 269eb7b3a05STakashi Sakamoto if (buf == NULL) 270eb7b3a05STakashi Sakamoto return -ENOMEM; 271eb7b3a05STakashi Sakamoto 272eb7b3a05STakashi Sakamoto if (s == &bebob->tx_stream) 273eb7b3a05STakashi Sakamoto dir = AVC_BRIDGECO_PLUG_DIR_OUT; 274eb7b3a05STakashi Sakamoto else 275eb7b3a05STakashi Sakamoto dir = AVC_BRIDGECO_PLUG_DIR_IN; 276eb7b3a05STakashi Sakamoto 277eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, dir, AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 278eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_ch_pos(bebob->unit, addr, buf, 256); 279eb7b3a05STakashi Sakamoto if (err < 0) { 280eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 281eb7b3a05STakashi Sakamoto "fail to get channel position for isoc %s plug 0: %d\n", 282eb7b3a05STakashi Sakamoto (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : "out", 283eb7b3a05STakashi Sakamoto err); 284eb7b3a05STakashi Sakamoto goto end; 285eb7b3a05STakashi Sakamoto } 286eb7b3a05STakashi Sakamoto pos = 0; 287eb7b3a05STakashi Sakamoto 288eb7b3a05STakashi Sakamoto /* positions in I/O buffer */ 289eb7b3a05STakashi Sakamoto pcm = 0; 290eb7b3a05STakashi Sakamoto midi = 0; 291eb7b3a05STakashi Sakamoto 292eb7b3a05STakashi Sakamoto /* the number of sections in AMDTP packet */ 293eb7b3a05STakashi Sakamoto sections = buf[pos++]; 294eb7b3a05STakashi Sakamoto 295eb7b3a05STakashi Sakamoto for (sec = 0; sec < sections; sec++) { 296eb7b3a05STakashi Sakamoto /* type of this section */ 297eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, dir, 298eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 299eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_section_type(bebob->unit, addr, 300eb7b3a05STakashi Sakamoto sec, &type); 301eb7b3a05STakashi Sakamoto if (err < 0) { 302eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 303eb7b3a05STakashi Sakamoto "fail to get section type for isoc %s plug 0: %d\n", 304eb7b3a05STakashi Sakamoto (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : 305eb7b3a05STakashi Sakamoto "out", 306eb7b3a05STakashi Sakamoto err); 307eb7b3a05STakashi Sakamoto goto end; 308eb7b3a05STakashi Sakamoto } 309eb7b3a05STakashi Sakamoto /* NoType */ 310eb7b3a05STakashi Sakamoto if (type == 0xff) { 311eb7b3a05STakashi Sakamoto err = -ENOSYS; 312eb7b3a05STakashi Sakamoto goto end; 313eb7b3a05STakashi Sakamoto } 314eb7b3a05STakashi Sakamoto 315eb7b3a05STakashi Sakamoto /* the number of channels in this section */ 316eb7b3a05STakashi Sakamoto channels = buf[pos++]; 317eb7b3a05STakashi Sakamoto 318eb7b3a05STakashi Sakamoto for (ch = 0; ch < channels; ch++) { 319eb7b3a05STakashi Sakamoto /* position of this channel in AMDTP packet */ 320eb7b3a05STakashi Sakamoto stm_pos = buf[pos++] - 1; 321eb7b3a05STakashi Sakamoto /* location of this channel in this section */ 322eb7b3a05STakashi Sakamoto sec_loc = buf[pos++] - 1; 323eb7b3a05STakashi Sakamoto 3249076c22dSTakashi Sakamoto /* 3259076c22dSTakashi Sakamoto * Basically the number of location is within the 3269076c22dSTakashi Sakamoto * number of channels in this section. But some models 3279076c22dSTakashi Sakamoto * of M-Audio don't follow this. Its location for MIDI 3289076c22dSTakashi Sakamoto * is the position of MIDI channels in AMDTP packet. 3299076c22dSTakashi Sakamoto */ 3309076c22dSTakashi Sakamoto if (sec_loc >= channels) 3319076c22dSTakashi Sakamoto sec_loc = ch; 3329076c22dSTakashi Sakamoto 333eb7b3a05STakashi Sakamoto switch (type) { 334eb7b3a05STakashi Sakamoto /* for MIDI conformant data channel */ 335eb7b3a05STakashi Sakamoto case 0x0a: 336eb7b3a05STakashi Sakamoto /* AMDTP_MAX_CHANNELS_FOR_MIDI is 1. */ 337eb7b3a05STakashi Sakamoto if ((midi > 0) && (stm_pos != midi)) { 338eb7b3a05STakashi Sakamoto err = -ENOSYS; 339eb7b3a05STakashi Sakamoto goto end; 340eb7b3a05STakashi Sakamoto } 341eb7b3a05STakashi Sakamoto s->midi_position = stm_pos; 342eb7b3a05STakashi Sakamoto midi = stm_pos; 343eb7b3a05STakashi Sakamoto break; 344eb7b3a05STakashi Sakamoto /* for PCM data channel */ 345eb7b3a05STakashi Sakamoto case 0x01: /* Headphone */ 346eb7b3a05STakashi Sakamoto case 0x02: /* Microphone */ 347eb7b3a05STakashi Sakamoto case 0x03: /* Line */ 348eb7b3a05STakashi Sakamoto case 0x04: /* SPDIF */ 349eb7b3a05STakashi Sakamoto case 0x05: /* ADAT */ 350eb7b3a05STakashi Sakamoto case 0x06: /* TDIF */ 351eb7b3a05STakashi Sakamoto case 0x07: /* MADI */ 352eb7b3a05STakashi Sakamoto /* for undefined/changeable signal */ 353eb7b3a05STakashi Sakamoto case 0x08: /* Analog */ 354eb7b3a05STakashi Sakamoto case 0x09: /* Digital */ 355eb7b3a05STakashi Sakamoto default: 356eb7b3a05STakashi Sakamoto location = pcm + sec_loc; 357eb7b3a05STakashi Sakamoto if (location >= AMDTP_MAX_CHANNELS_FOR_PCM) { 358eb7b3a05STakashi Sakamoto err = -ENOSYS; 359eb7b3a05STakashi Sakamoto goto end; 360eb7b3a05STakashi Sakamoto } 361eb7b3a05STakashi Sakamoto s->pcm_positions[location] = stm_pos; 362eb7b3a05STakashi Sakamoto break; 363eb7b3a05STakashi Sakamoto } 364eb7b3a05STakashi Sakamoto } 365eb7b3a05STakashi Sakamoto 366eb7b3a05STakashi Sakamoto if (type != 0x0a) 367eb7b3a05STakashi Sakamoto pcm += channels; 368eb7b3a05STakashi Sakamoto else 369eb7b3a05STakashi Sakamoto midi += channels; 370eb7b3a05STakashi Sakamoto } 371eb7b3a05STakashi Sakamoto end: 372eb7b3a05STakashi Sakamoto kfree(buf); 373eb7b3a05STakashi Sakamoto return err; 374eb7b3a05STakashi Sakamoto } 375eb7b3a05STakashi Sakamoto 376eb7b3a05STakashi Sakamoto static int 377eb7b3a05STakashi Sakamoto init_both_connections(struct snd_bebob *bebob) 378eb7b3a05STakashi Sakamoto { 379eb7b3a05STakashi Sakamoto int err; 380eb7b3a05STakashi Sakamoto 381eb7b3a05STakashi Sakamoto err = cmp_connection_init(&bebob->in_conn, 382eb7b3a05STakashi Sakamoto bebob->unit, CMP_INPUT, 0); 383eb7b3a05STakashi Sakamoto if (err < 0) 384eb7b3a05STakashi Sakamoto goto end; 385eb7b3a05STakashi Sakamoto 386eb7b3a05STakashi Sakamoto err = cmp_connection_init(&bebob->out_conn, 387eb7b3a05STakashi Sakamoto bebob->unit, CMP_OUTPUT, 0); 388eb7b3a05STakashi Sakamoto if (err < 0) 389eb7b3a05STakashi Sakamoto cmp_connection_destroy(&bebob->in_conn); 390eb7b3a05STakashi Sakamoto end: 391eb7b3a05STakashi Sakamoto return err; 392eb7b3a05STakashi Sakamoto } 393eb7b3a05STakashi Sakamoto 394eb7b3a05STakashi Sakamoto static int 395eb7b3a05STakashi Sakamoto check_connection_used_by_others(struct snd_bebob *bebob, struct amdtp_stream *s) 396eb7b3a05STakashi Sakamoto { 397eb7b3a05STakashi Sakamoto struct cmp_connection *conn; 398eb7b3a05STakashi Sakamoto bool used; 399eb7b3a05STakashi Sakamoto int err; 400eb7b3a05STakashi Sakamoto 401eb7b3a05STakashi Sakamoto if (s == &bebob->tx_stream) 402eb7b3a05STakashi Sakamoto conn = &bebob->out_conn; 403eb7b3a05STakashi Sakamoto else 404eb7b3a05STakashi Sakamoto conn = &bebob->in_conn; 405eb7b3a05STakashi Sakamoto 406eb7b3a05STakashi Sakamoto err = cmp_connection_check_used(conn, &used); 407eb7b3a05STakashi Sakamoto if ((err >= 0) && used && !amdtp_stream_running(s)) { 408eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 409eb7b3a05STakashi Sakamoto "Connection established by others: %cPCR[%d]\n", 410eb7b3a05STakashi Sakamoto (conn->direction == CMP_OUTPUT) ? 'o' : 'i', 411eb7b3a05STakashi Sakamoto conn->pcr_index); 412eb7b3a05STakashi Sakamoto err = -EBUSY; 413eb7b3a05STakashi Sakamoto } 414eb7b3a05STakashi Sakamoto 415eb7b3a05STakashi Sakamoto return err; 416eb7b3a05STakashi Sakamoto } 417eb7b3a05STakashi Sakamoto 418eb7b3a05STakashi Sakamoto static int 419eb7b3a05STakashi Sakamoto make_both_connections(struct snd_bebob *bebob, unsigned int rate) 420eb7b3a05STakashi Sakamoto { 421b6bc8123STakashi Sakamoto int index, pcm_channels, midi_channels, err = 0; 422b6bc8123STakashi Sakamoto 423b6bc8123STakashi Sakamoto if (bebob->connected) 424b6bc8123STakashi Sakamoto goto end; 425eb7b3a05STakashi Sakamoto 426eb7b3a05STakashi Sakamoto /* confirm params for both streams */ 427eb7b3a05STakashi Sakamoto index = get_formation_index(rate); 428eb7b3a05STakashi Sakamoto pcm_channels = bebob->tx_stream_formations[index].pcm; 429eb7b3a05STakashi Sakamoto midi_channels = bebob->tx_stream_formations[index].midi; 430eb7b3a05STakashi Sakamoto amdtp_stream_set_parameters(&bebob->tx_stream, 431eb7b3a05STakashi Sakamoto rate, pcm_channels, midi_channels * 8); 432eb7b3a05STakashi Sakamoto pcm_channels = bebob->rx_stream_formations[index].pcm; 433eb7b3a05STakashi Sakamoto midi_channels = bebob->rx_stream_formations[index].midi; 434eb7b3a05STakashi Sakamoto amdtp_stream_set_parameters(&bebob->rx_stream, 435eb7b3a05STakashi Sakamoto rate, pcm_channels, midi_channels * 8); 436eb7b3a05STakashi Sakamoto 437eb7b3a05STakashi Sakamoto /* establish connections for both streams */ 438eb7b3a05STakashi Sakamoto err = cmp_connection_establish(&bebob->out_conn, 439eb7b3a05STakashi Sakamoto amdtp_stream_get_max_payload(&bebob->tx_stream)); 440eb7b3a05STakashi Sakamoto if (err < 0) 441eb7b3a05STakashi Sakamoto goto end; 442eb7b3a05STakashi Sakamoto err = cmp_connection_establish(&bebob->in_conn, 443eb7b3a05STakashi Sakamoto amdtp_stream_get_max_payload(&bebob->rx_stream)); 444b6bc8123STakashi Sakamoto if (err < 0) { 445eb7b3a05STakashi Sakamoto cmp_connection_break(&bebob->out_conn); 446b6bc8123STakashi Sakamoto goto end; 447b6bc8123STakashi Sakamoto } 448b6bc8123STakashi Sakamoto 449b6bc8123STakashi Sakamoto bebob->connected = true; 450eb7b3a05STakashi Sakamoto end: 451eb7b3a05STakashi Sakamoto return err; 452eb7b3a05STakashi Sakamoto } 453eb7b3a05STakashi Sakamoto 454eb7b3a05STakashi Sakamoto static void 455eb7b3a05STakashi Sakamoto break_both_connections(struct snd_bebob *bebob) 456eb7b3a05STakashi Sakamoto { 457eb7b3a05STakashi Sakamoto cmp_connection_break(&bebob->in_conn); 458eb7b3a05STakashi Sakamoto cmp_connection_break(&bebob->out_conn); 459b6bc8123STakashi Sakamoto 460b6bc8123STakashi Sakamoto bebob->connected = false; 4613149ac48STakashi Sakamoto 4623149ac48STakashi Sakamoto /* These models seems to be in transition state for a longer time. */ 4633149ac48STakashi Sakamoto if (bebob->maudio_special_quirk != NULL) 4643149ac48STakashi Sakamoto msleep(200); 465eb7b3a05STakashi Sakamoto } 466eb7b3a05STakashi Sakamoto 467eb7b3a05STakashi Sakamoto static void 468eb7b3a05STakashi Sakamoto destroy_both_connections(struct snd_bebob *bebob) 469eb7b3a05STakashi Sakamoto { 470eb7b3a05STakashi Sakamoto cmp_connection_destroy(&bebob->in_conn); 471eb7b3a05STakashi Sakamoto cmp_connection_destroy(&bebob->out_conn); 472eb7b3a05STakashi Sakamoto } 473eb7b3a05STakashi Sakamoto 474eb7b3a05STakashi Sakamoto static int 475eb7b3a05STakashi Sakamoto get_sync_mode(struct snd_bebob *bebob, enum cip_flags *sync_mode) 476eb7b3a05STakashi Sakamoto { 47705773792STakashi Sakamoto enum snd_bebob_clock_type src; 47805773792STakashi Sakamoto int err; 47905773792STakashi Sakamoto 48005773792STakashi Sakamoto err = snd_bebob_stream_get_clock_src(bebob, &src); 48105773792STakashi Sakamoto if (err < 0) 48205773792STakashi Sakamoto return err; 48305773792STakashi Sakamoto 48405773792STakashi Sakamoto switch (src) { 48505773792STakashi Sakamoto case SND_BEBOB_CLOCK_TYPE_INTERNAL: 48605773792STakashi Sakamoto case SND_BEBOB_CLOCK_TYPE_EXTERNAL: 487eb7b3a05STakashi Sakamoto *sync_mode = CIP_SYNC_TO_DEVICE; 48805773792STakashi Sakamoto break; 48905773792STakashi Sakamoto default: 49005773792STakashi Sakamoto case SND_BEBOB_CLOCK_TYPE_SYT: 49105773792STakashi Sakamoto *sync_mode = 0; 49205773792STakashi Sakamoto break; 49305773792STakashi Sakamoto } 49405773792STakashi Sakamoto 495eb7b3a05STakashi Sakamoto return 0; 496eb7b3a05STakashi Sakamoto } 497eb7b3a05STakashi Sakamoto 498eb7b3a05STakashi Sakamoto static int 499eb7b3a05STakashi Sakamoto start_stream(struct snd_bebob *bebob, struct amdtp_stream *stream, 500eb7b3a05STakashi Sakamoto unsigned int rate) 501eb7b3a05STakashi Sakamoto { 502eb7b3a05STakashi Sakamoto struct cmp_connection *conn; 503eb7b3a05STakashi Sakamoto int err = 0; 504eb7b3a05STakashi Sakamoto 505eb7b3a05STakashi Sakamoto if (stream == &bebob->rx_stream) 506eb7b3a05STakashi Sakamoto conn = &bebob->in_conn; 507eb7b3a05STakashi Sakamoto else 508eb7b3a05STakashi Sakamoto conn = &bebob->out_conn; 509eb7b3a05STakashi Sakamoto 510eb7b3a05STakashi Sakamoto /* channel mapping */ 5113149ac48STakashi Sakamoto if (bebob->maudio_special_quirk == NULL) { 512eb7b3a05STakashi Sakamoto err = map_data_channels(bebob, stream); 513eb7b3a05STakashi Sakamoto if (err < 0) 514eb7b3a05STakashi Sakamoto goto end; 5153149ac48STakashi Sakamoto } 516eb7b3a05STakashi Sakamoto 517eb7b3a05STakashi Sakamoto /* start amdtp stream */ 518eb7b3a05STakashi Sakamoto err = amdtp_stream_start(stream, 519eb7b3a05STakashi Sakamoto conn->resources.channel, 520eb7b3a05STakashi Sakamoto conn->speed); 521eb7b3a05STakashi Sakamoto end: 522eb7b3a05STakashi Sakamoto return err; 523eb7b3a05STakashi Sakamoto } 524eb7b3a05STakashi Sakamoto 525eb7b3a05STakashi Sakamoto int snd_bebob_stream_init_duplex(struct snd_bebob *bebob) 526eb7b3a05STakashi Sakamoto { 527eb7b3a05STakashi Sakamoto int err; 528eb7b3a05STakashi Sakamoto 529eb7b3a05STakashi Sakamoto err = init_both_connections(bebob); 530eb7b3a05STakashi Sakamoto if (err < 0) 531eb7b3a05STakashi Sakamoto goto end; 532eb7b3a05STakashi Sakamoto 533eb7b3a05STakashi Sakamoto err = amdtp_stream_init(&bebob->tx_stream, bebob->unit, 534eb7b3a05STakashi Sakamoto AMDTP_IN_STREAM, CIP_BLOCKING); 535eb7b3a05STakashi Sakamoto if (err < 0) { 536eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->tx_stream); 537eb7b3a05STakashi Sakamoto destroy_both_connections(bebob); 538eb7b3a05STakashi Sakamoto goto end; 539eb7b3a05STakashi Sakamoto } 540b6bc8123STakashi Sakamoto /* See comments in next function */ 541b6bc8123STakashi Sakamoto init_completion(&bebob->bus_reset); 542b6bc8123STakashi Sakamoto bebob->tx_stream.flags |= CIP_SKIP_INIT_DBC_CHECK; 543c4d860a0STakashi Sakamoto 544c4d860a0STakashi Sakamoto /* 545c4d860a0STakashi Sakamoto * BeBoB v3 transfers packets with these qurks: 546c4d860a0STakashi Sakamoto * - In the beginning of streaming, the value of dbc is incremented 547c4d860a0STakashi Sakamoto * even if no data blocks are transferred. 548c4d860a0STakashi Sakamoto * - The value of dbc is reset suddenly. 549c4d860a0STakashi Sakamoto */ 550c4d860a0STakashi Sakamoto if (bebob->version > 2) 551c4d860a0STakashi Sakamoto bebob->tx_stream.flags |= CIP_EMPTY_HAS_WRONG_DBC | 552c4d860a0STakashi Sakamoto CIP_SKIP_DBC_ZERO_CHECK; 553c4d860a0STakashi Sakamoto 5549d59124cSTakashi Sakamoto /* 5559d59124cSTakashi Sakamoto * At high sampling rate, M-Audio special firmware transmits empty 5569d59124cSTakashi Sakamoto * packet with the value of dbc incremented by 8 but the others are 5579d59124cSTakashi Sakamoto * valid to IEC 61883-1. 5589d59124cSTakashi Sakamoto */ 5599d59124cSTakashi Sakamoto if (bebob->maudio_special_quirk) 5609d59124cSTakashi Sakamoto bebob->tx_stream.flags |= CIP_EMPTY_HAS_WRONG_DBC; 561eb7b3a05STakashi Sakamoto 562eb7b3a05STakashi Sakamoto err = amdtp_stream_init(&bebob->rx_stream, bebob->unit, 563eb7b3a05STakashi Sakamoto AMDTP_OUT_STREAM, CIP_BLOCKING); 564eb7b3a05STakashi Sakamoto if (err < 0) { 565eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->tx_stream); 566eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->rx_stream); 567eb7b3a05STakashi Sakamoto destroy_both_connections(bebob); 568eb7b3a05STakashi Sakamoto } 569eb7b3a05STakashi Sakamoto end: 570eb7b3a05STakashi Sakamoto return err; 571eb7b3a05STakashi Sakamoto } 572eb7b3a05STakashi Sakamoto 5734a286d55STakashi Sakamoto int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, unsigned int rate) 574eb7b3a05STakashi Sakamoto { 5751fc9522aSTakashi Sakamoto struct snd_bebob_rate_spec *rate_spec = bebob->spec->rate; 576eb7b3a05STakashi Sakamoto struct amdtp_stream *master, *slave; 577eb7b3a05STakashi Sakamoto enum cip_flags sync_mode; 578eb7b3a05STakashi Sakamoto unsigned int curr_rate; 579b6bc8123STakashi Sakamoto bool updated = false; 580eb7b3a05STakashi Sakamoto int err = 0; 581eb7b3a05STakashi Sakamoto 582b6bc8123STakashi Sakamoto /* 583b6bc8123STakashi Sakamoto * Normal BeBoB firmware has a quirk at bus reset to transmits packets 584b6bc8123STakashi Sakamoto * with discontinuous value in dbc field. 585b6bc8123STakashi Sakamoto * 586b6bc8123STakashi Sakamoto * This 'struct completion' is used to call .update() at first to update 587b6bc8123STakashi Sakamoto * connections/streams. Next following codes handle streaming error. 588b6bc8123STakashi Sakamoto */ 589b6bc8123STakashi Sakamoto if (amdtp_streaming_error(&bebob->tx_stream)) { 590b6bc8123STakashi Sakamoto if (completion_done(&bebob->bus_reset)) 591b6bc8123STakashi Sakamoto reinit_completion(&bebob->bus_reset); 592b6bc8123STakashi Sakamoto 593b6bc8123STakashi Sakamoto updated = (wait_for_completion_interruptible_timeout( 594b6bc8123STakashi Sakamoto &bebob->bus_reset, 595b6bc8123STakashi Sakamoto msecs_to_jiffies(FW_ISO_RESOURCE_DELAY)) > 0); 596b6bc8123STakashi Sakamoto } 597b6bc8123STakashi Sakamoto 598eb7b3a05STakashi Sakamoto mutex_lock(&bebob->mutex); 599eb7b3a05STakashi Sakamoto 600eb7b3a05STakashi Sakamoto /* Need no substreams */ 6018d1c2694STakashi Sakamoto if (atomic_read(&bebob->substreams_counter) == 0) 602eb7b3a05STakashi Sakamoto goto end; 603eb7b3a05STakashi Sakamoto 604eb7b3a05STakashi Sakamoto err = get_sync_mode(bebob, &sync_mode); 605eb7b3a05STakashi Sakamoto if (err < 0) 606eb7b3a05STakashi Sakamoto goto end; 607eb7b3a05STakashi Sakamoto if (sync_mode == CIP_SYNC_TO_DEVICE) { 608eb7b3a05STakashi Sakamoto master = &bebob->tx_stream; 609eb7b3a05STakashi Sakamoto slave = &bebob->rx_stream; 610eb7b3a05STakashi Sakamoto } else { 611eb7b3a05STakashi Sakamoto master = &bebob->rx_stream; 612eb7b3a05STakashi Sakamoto slave = &bebob->tx_stream; 613eb7b3a05STakashi Sakamoto } 614eb7b3a05STakashi Sakamoto 615eb7b3a05STakashi Sakamoto /* 616eb7b3a05STakashi Sakamoto * Considering JACK/FFADO streaming: 617eb7b3a05STakashi Sakamoto * TODO: This can be removed hwdep functionality becomes popular. 618eb7b3a05STakashi Sakamoto */ 619eb7b3a05STakashi Sakamoto err = check_connection_used_by_others(bebob, master); 620eb7b3a05STakashi Sakamoto if (err < 0) 621eb7b3a05STakashi Sakamoto goto end; 622eb7b3a05STakashi Sakamoto 623b6bc8123STakashi Sakamoto /* 624b6bc8123STakashi Sakamoto * packet queueing error or detecting discontinuity 625b6bc8123STakashi Sakamoto * 626b6bc8123STakashi Sakamoto * At bus reset, connections should not be broken here. So streams need 627b6bc8123STakashi Sakamoto * to be re-started. This is a reason to use SKIP_INIT_DBC_CHECK flag. 628b6bc8123STakashi Sakamoto */ 629b6bc8123STakashi Sakamoto if (amdtp_streaming_error(master)) 630eb7b3a05STakashi Sakamoto amdtp_stream_stop(master); 631eb7b3a05STakashi Sakamoto if (amdtp_streaming_error(slave)) 632eb7b3a05STakashi Sakamoto amdtp_stream_stop(slave); 633b6bc8123STakashi Sakamoto if (!updated && 634b6bc8123STakashi Sakamoto !amdtp_stream_running(master) && !amdtp_stream_running(slave)) 635b6bc8123STakashi Sakamoto break_both_connections(bebob); 636eb7b3a05STakashi Sakamoto 637eb7b3a05STakashi Sakamoto /* stop streams if rate is different */ 6381fc9522aSTakashi Sakamoto err = rate_spec->get(bebob, &curr_rate); 639eb7b3a05STakashi Sakamoto if (err < 0) { 640eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 641eb7b3a05STakashi Sakamoto "fail to get sampling rate: %d\n", err); 642eb7b3a05STakashi Sakamoto goto end; 643eb7b3a05STakashi Sakamoto } 644eb7b3a05STakashi Sakamoto if (rate == 0) 645eb7b3a05STakashi Sakamoto rate = curr_rate; 646eb7b3a05STakashi Sakamoto if (rate != curr_rate) { 647eb7b3a05STakashi Sakamoto amdtp_stream_stop(master); 648eb7b3a05STakashi Sakamoto amdtp_stream_stop(slave); 649eb7b3a05STakashi Sakamoto break_both_connections(bebob); 650eb7b3a05STakashi Sakamoto } 651eb7b3a05STakashi Sakamoto 652eb7b3a05STakashi Sakamoto /* master should be always running */ 653eb7b3a05STakashi Sakamoto if (!amdtp_stream_running(master)) { 654eb7b3a05STakashi Sakamoto amdtp_stream_set_sync(sync_mode, master, slave); 655eb7b3a05STakashi Sakamoto bebob->master = master; 656eb7b3a05STakashi Sakamoto 657eb7b3a05STakashi Sakamoto /* 658eb7b3a05STakashi Sakamoto * NOTE: 659eb7b3a05STakashi Sakamoto * If establishing connections at first, Yamaha GO46 660eb7b3a05STakashi Sakamoto * (and maybe Terratec X24) don't generate sound. 6613149ac48STakashi Sakamoto * 6623149ac48STakashi Sakamoto * For firmware customized by M-Audio, refer to next NOTE. 663eb7b3a05STakashi Sakamoto */ 6643149ac48STakashi Sakamoto if (bebob->maudio_special_quirk == NULL) { 6651fc9522aSTakashi Sakamoto err = rate_spec->set(bebob, rate); 666eb7b3a05STakashi Sakamoto if (err < 0) { 667eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 668eb7b3a05STakashi Sakamoto "fail to set sampling rate: %d\n", 669eb7b3a05STakashi Sakamoto err); 670eb7b3a05STakashi Sakamoto goto end; 671eb7b3a05STakashi Sakamoto } 6723149ac48STakashi Sakamoto } 673eb7b3a05STakashi Sakamoto 674eb7b3a05STakashi Sakamoto err = make_both_connections(bebob, rate); 675eb7b3a05STakashi Sakamoto if (err < 0) 676eb7b3a05STakashi Sakamoto goto end; 677eb7b3a05STakashi Sakamoto 678eb7b3a05STakashi Sakamoto err = start_stream(bebob, master, rate); 679eb7b3a05STakashi Sakamoto if (err < 0) { 680eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 681eb7b3a05STakashi Sakamoto "fail to run AMDTP master stream:%d\n", err); 682eb7b3a05STakashi Sakamoto break_both_connections(bebob); 683eb7b3a05STakashi Sakamoto goto end; 684eb7b3a05STakashi Sakamoto } 685eb7b3a05STakashi Sakamoto 6863149ac48STakashi Sakamoto /* 6873149ac48STakashi Sakamoto * NOTE: 6883149ac48STakashi Sakamoto * The firmware customized by M-Audio uses these commands to 6893149ac48STakashi Sakamoto * start transmitting stream. This is not usual way. 6903149ac48STakashi Sakamoto */ 6913149ac48STakashi Sakamoto if (bebob->maudio_special_quirk != NULL) { 6923149ac48STakashi Sakamoto err = rate_spec->set(bebob, rate); 6933149ac48STakashi Sakamoto if (err < 0) { 6943149ac48STakashi Sakamoto dev_err(&bebob->unit->device, 6953149ac48STakashi Sakamoto "fail to ensure sampling rate: %d\n", 6963149ac48STakashi Sakamoto err); 6973149ac48STakashi Sakamoto amdtp_stream_stop(master); 6983149ac48STakashi Sakamoto break_both_connections(bebob); 6993149ac48STakashi Sakamoto goto end; 7003149ac48STakashi Sakamoto } 7013149ac48STakashi Sakamoto } 7023149ac48STakashi Sakamoto 703eb7b3a05STakashi Sakamoto /* wait first callback */ 704eb7b3a05STakashi Sakamoto if (!amdtp_stream_wait_callback(master, CALLBACK_TIMEOUT)) { 705eb7b3a05STakashi Sakamoto amdtp_stream_stop(master); 706eb7b3a05STakashi Sakamoto break_both_connections(bebob); 707eb7b3a05STakashi Sakamoto err = -ETIMEDOUT; 708eb7b3a05STakashi Sakamoto goto end; 709eb7b3a05STakashi Sakamoto } 710eb7b3a05STakashi Sakamoto } 711eb7b3a05STakashi Sakamoto 712eb7b3a05STakashi Sakamoto /* start slave if needed */ 7138d1c2694STakashi Sakamoto if (!amdtp_stream_running(slave)) { 714eb7b3a05STakashi Sakamoto err = start_stream(bebob, slave, rate); 715eb7b3a05STakashi Sakamoto if (err < 0) { 716eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 717eb7b3a05STakashi Sakamoto "fail to run AMDTP slave stream:%d\n", err); 718eb7b3a05STakashi Sakamoto amdtp_stream_stop(master); 719eb7b3a05STakashi Sakamoto break_both_connections(bebob); 720eb7b3a05STakashi Sakamoto goto end; 721eb7b3a05STakashi Sakamoto } 722eb7b3a05STakashi Sakamoto 723eb7b3a05STakashi Sakamoto /* wait first callback */ 724eb7b3a05STakashi Sakamoto if (!amdtp_stream_wait_callback(slave, CALLBACK_TIMEOUT)) { 725eb7b3a05STakashi Sakamoto amdtp_stream_stop(slave); 726eb7b3a05STakashi Sakamoto amdtp_stream_stop(master); 727eb7b3a05STakashi Sakamoto break_both_connections(bebob); 728eb7b3a05STakashi Sakamoto err = -ETIMEDOUT; 729eb7b3a05STakashi Sakamoto } 730eb7b3a05STakashi Sakamoto } 731eb7b3a05STakashi Sakamoto end: 732eb7b3a05STakashi Sakamoto mutex_unlock(&bebob->mutex); 733eb7b3a05STakashi Sakamoto return err; 734eb7b3a05STakashi Sakamoto } 735eb7b3a05STakashi Sakamoto 736eb7b3a05STakashi Sakamoto void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob) 737eb7b3a05STakashi Sakamoto { 738eb7b3a05STakashi Sakamoto struct amdtp_stream *master, *slave; 739eb7b3a05STakashi Sakamoto 740eb7b3a05STakashi Sakamoto if (bebob->master == &bebob->rx_stream) { 741eb7b3a05STakashi Sakamoto slave = &bebob->tx_stream; 742eb7b3a05STakashi Sakamoto master = &bebob->rx_stream; 743eb7b3a05STakashi Sakamoto } else { 744eb7b3a05STakashi Sakamoto slave = &bebob->rx_stream; 745eb7b3a05STakashi Sakamoto master = &bebob->tx_stream; 746eb7b3a05STakashi Sakamoto } 747eb7b3a05STakashi Sakamoto 748c6e5e741STakashi Sakamoto mutex_lock(&bebob->mutex); 749c6e5e741STakashi Sakamoto 7508d1c2694STakashi Sakamoto if (atomic_read(&bebob->substreams_counter) == 0) { 7518d1c2694STakashi Sakamoto amdtp_stream_pcm_abort(master); 7528d1c2694STakashi Sakamoto amdtp_stream_stop(master); 7538d1c2694STakashi Sakamoto 754eb7b3a05STakashi Sakamoto amdtp_stream_pcm_abort(slave); 755eb7b3a05STakashi Sakamoto amdtp_stream_stop(slave); 756eb7b3a05STakashi Sakamoto 757eb7b3a05STakashi Sakamoto break_both_connections(bebob); 758eb7b3a05STakashi Sakamoto } 759eb7b3a05STakashi Sakamoto 760eb7b3a05STakashi Sakamoto mutex_unlock(&bebob->mutex); 761eb7b3a05STakashi Sakamoto } 762eb7b3a05STakashi Sakamoto 763eb7b3a05STakashi Sakamoto void snd_bebob_stream_update_duplex(struct snd_bebob *bebob) 764eb7b3a05STakashi Sakamoto { 765eb7b3a05STakashi Sakamoto /* vs. XRUN recovery due to discontinuity at bus reset */ 766eb7b3a05STakashi Sakamoto mutex_lock(&bebob->mutex); 767eb7b3a05STakashi Sakamoto 768eb7b3a05STakashi Sakamoto if ((cmp_connection_update(&bebob->in_conn) < 0) || 769eb7b3a05STakashi Sakamoto (cmp_connection_update(&bebob->out_conn) < 0)) { 770eb7b3a05STakashi Sakamoto amdtp_stream_pcm_abort(&bebob->rx_stream); 771eb7b3a05STakashi Sakamoto amdtp_stream_pcm_abort(&bebob->tx_stream); 772eb7b3a05STakashi Sakamoto amdtp_stream_stop(&bebob->rx_stream); 773eb7b3a05STakashi Sakamoto amdtp_stream_stop(&bebob->tx_stream); 774eb7b3a05STakashi Sakamoto break_both_connections(bebob); 775eb7b3a05STakashi Sakamoto } else { 776eb7b3a05STakashi Sakamoto amdtp_stream_update(&bebob->rx_stream); 777eb7b3a05STakashi Sakamoto amdtp_stream_update(&bebob->tx_stream); 778eb7b3a05STakashi Sakamoto } 779eb7b3a05STakashi Sakamoto 780b6bc8123STakashi Sakamoto /* wake up stream_start_duplex() */ 781b6bc8123STakashi Sakamoto if (!completion_done(&bebob->bus_reset)) 782b6bc8123STakashi Sakamoto complete_all(&bebob->bus_reset); 783b6bc8123STakashi Sakamoto 784eb7b3a05STakashi Sakamoto mutex_unlock(&bebob->mutex); 785eb7b3a05STakashi Sakamoto } 786eb7b3a05STakashi Sakamoto 787d23c2cc4STakashi Sakamoto /* 788d23c2cc4STakashi Sakamoto * This function should be called before starting streams or after stopping 789d23c2cc4STakashi Sakamoto * streams. 790d23c2cc4STakashi Sakamoto */ 791eb7b3a05STakashi Sakamoto void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob) 792eb7b3a05STakashi Sakamoto { 793eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->rx_stream); 794eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->tx_stream); 795eb7b3a05STakashi Sakamoto 796eb7b3a05STakashi Sakamoto destroy_both_connections(bebob); 797eb7b3a05STakashi Sakamoto } 798eb7b3a05STakashi Sakamoto 799eb7b3a05STakashi Sakamoto /* 800eb7b3a05STakashi Sakamoto * See: Table 50: Extended Stream Format Info Format Hierarchy Level 2’ 801eb7b3a05STakashi Sakamoto * in Additional AVC commands (Nov 2003, BridgeCo) 802eb7b3a05STakashi Sakamoto * Also 'Clause 12 AM824 sequence adaption layers' in IEC 61883-6:2005 803eb7b3a05STakashi Sakamoto */ 804eb7b3a05STakashi Sakamoto static int 805eb7b3a05STakashi Sakamoto parse_stream_formation(u8 *buf, unsigned int len, 806eb7b3a05STakashi Sakamoto struct snd_bebob_stream_formation *formation) 807eb7b3a05STakashi Sakamoto { 808eb7b3a05STakashi Sakamoto unsigned int i, e, channels, format; 809eb7b3a05STakashi Sakamoto 810eb7b3a05STakashi Sakamoto /* 811eb7b3a05STakashi Sakamoto * this module can support a hierarchy combination that: 812eb7b3a05STakashi Sakamoto * Root: Audio and Music (0x90) 813eb7b3a05STakashi Sakamoto * Level 1: AM824 Compound (0x40) 814eb7b3a05STakashi Sakamoto */ 815eb7b3a05STakashi Sakamoto if ((buf[0] != 0x90) || (buf[1] != 0x40)) 816eb7b3a05STakashi Sakamoto return -ENOSYS; 817eb7b3a05STakashi Sakamoto 818eb7b3a05STakashi Sakamoto /* check sampling rate */ 819eb7b3a05STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(bridgeco_freq_table); i++) { 820eb7b3a05STakashi Sakamoto if (buf[2] == bridgeco_freq_table[i]) 821eb7b3a05STakashi Sakamoto break; 822eb7b3a05STakashi Sakamoto } 82333a5f989SDan Carpenter if (i == ARRAY_SIZE(bridgeco_freq_table)) 824eb7b3a05STakashi Sakamoto return -ENOSYS; 825eb7b3a05STakashi Sakamoto 826eb7b3a05STakashi Sakamoto /* Avoid double count by different entries for the same rate. */ 827eb7b3a05STakashi Sakamoto memset(&formation[i], 0, sizeof(struct snd_bebob_stream_formation)); 828eb7b3a05STakashi Sakamoto 829eb7b3a05STakashi Sakamoto for (e = 0; e < buf[4]; e++) { 830eb7b3a05STakashi Sakamoto channels = buf[5 + e * 2]; 831eb7b3a05STakashi Sakamoto format = buf[6 + e * 2]; 832eb7b3a05STakashi Sakamoto 833eb7b3a05STakashi Sakamoto switch (format) { 83451fa31d4STakashi Sakamoto /* IEC 60958 Conformant, currently handled as MBLA */ 835eb7b3a05STakashi Sakamoto case 0x00: 836eb7b3a05STakashi Sakamoto /* Multi bit linear audio */ 837eb7b3a05STakashi Sakamoto case 0x06: /* Raw */ 838eb7b3a05STakashi Sakamoto formation[i].pcm += channels; 839eb7b3a05STakashi Sakamoto break; 840eb7b3a05STakashi Sakamoto /* MIDI Conformant */ 841eb7b3a05STakashi Sakamoto case 0x0d: 842eb7b3a05STakashi Sakamoto formation[i].midi += channels; 843eb7b3a05STakashi Sakamoto break; 844eb7b3a05STakashi Sakamoto /* IEC 61937-3 to 7 */ 845eb7b3a05STakashi Sakamoto case 0x01: 846eb7b3a05STakashi Sakamoto case 0x02: 847eb7b3a05STakashi Sakamoto case 0x03: 848eb7b3a05STakashi Sakamoto case 0x04: 849eb7b3a05STakashi Sakamoto case 0x05: 850eb7b3a05STakashi Sakamoto /* Multi bit linear audio */ 851eb7b3a05STakashi Sakamoto case 0x07: /* DVD-Audio */ 852eb7b3a05STakashi Sakamoto case 0x0c: /* High Precision */ 853eb7b3a05STakashi Sakamoto /* One Bit Audio */ 854eb7b3a05STakashi Sakamoto case 0x08: /* (Plain) Raw */ 855eb7b3a05STakashi Sakamoto case 0x09: /* (Plain) SACD */ 856eb7b3a05STakashi Sakamoto case 0x0a: /* (Encoded) Raw */ 857eb7b3a05STakashi Sakamoto case 0x0b: /* (Encoded) SACD */ 858eb7b3a05STakashi Sakamoto /* Synchronization Stream (Stereo Raw audio) */ 859eb7b3a05STakashi Sakamoto case 0x40: 860eb7b3a05STakashi Sakamoto /* Don't care */ 861eb7b3a05STakashi Sakamoto case 0xff: 862eb7b3a05STakashi Sakamoto default: 863eb7b3a05STakashi Sakamoto return -ENOSYS; /* not supported */ 864eb7b3a05STakashi Sakamoto } 865eb7b3a05STakashi Sakamoto } 866eb7b3a05STakashi Sakamoto 867eb7b3a05STakashi Sakamoto if (formation[i].pcm > AMDTP_MAX_CHANNELS_FOR_PCM || 868eb7b3a05STakashi Sakamoto formation[i].midi > AMDTP_MAX_CHANNELS_FOR_MIDI) 869eb7b3a05STakashi Sakamoto return -ENOSYS; 870eb7b3a05STakashi Sakamoto 871eb7b3a05STakashi Sakamoto return 0; 872eb7b3a05STakashi Sakamoto } 873eb7b3a05STakashi Sakamoto 874eb7b3a05STakashi Sakamoto static int 875eb7b3a05STakashi Sakamoto fill_stream_formations(struct snd_bebob *bebob, enum avc_bridgeco_plug_dir dir, 876eb7b3a05STakashi Sakamoto unsigned short pid) 877eb7b3a05STakashi Sakamoto { 878eb7b3a05STakashi Sakamoto u8 *buf; 879eb7b3a05STakashi Sakamoto struct snd_bebob_stream_formation *formations; 880eb7b3a05STakashi Sakamoto unsigned int len, eid; 881eb7b3a05STakashi Sakamoto u8 addr[AVC_BRIDGECO_ADDR_BYTES]; 882eb7b3a05STakashi Sakamoto int err; 883eb7b3a05STakashi Sakamoto 884eb7b3a05STakashi Sakamoto buf = kmalloc(FORMAT_MAXIMUM_LENGTH, GFP_KERNEL); 885eb7b3a05STakashi Sakamoto if (buf == NULL) 886eb7b3a05STakashi Sakamoto return -ENOMEM; 887eb7b3a05STakashi Sakamoto 888eb7b3a05STakashi Sakamoto if (dir == AVC_BRIDGECO_PLUG_DIR_IN) 889eb7b3a05STakashi Sakamoto formations = bebob->rx_stream_formations; 890eb7b3a05STakashi Sakamoto else 891eb7b3a05STakashi Sakamoto formations = bebob->tx_stream_formations; 892eb7b3a05STakashi Sakamoto 893eb7b3a05STakashi Sakamoto for (eid = 0; eid < SND_BEBOB_STRM_FMT_ENTRIES; eid++) { 894eb7b3a05STakashi Sakamoto len = FORMAT_MAXIMUM_LENGTH; 895eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, dir, 896eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, pid); 897eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_strm_fmt(bebob->unit, addr, buf, 898eb7b3a05STakashi Sakamoto &len, eid); 899eb7b3a05STakashi Sakamoto /* No entries remained. */ 900eb7b3a05STakashi Sakamoto if (err == -EINVAL && eid > 0) { 901eb7b3a05STakashi Sakamoto err = 0; 902eb7b3a05STakashi Sakamoto break; 903eb7b3a05STakashi Sakamoto } else if (err < 0) { 904eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 905eb7b3a05STakashi Sakamoto "fail to get stream format %d for isoc %s plug %d:%d\n", 906eb7b3a05STakashi Sakamoto eid, 907eb7b3a05STakashi Sakamoto (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : 908eb7b3a05STakashi Sakamoto "out", 909eb7b3a05STakashi Sakamoto pid, err); 910eb7b3a05STakashi Sakamoto break; 911eb7b3a05STakashi Sakamoto } 912eb7b3a05STakashi Sakamoto 913eb7b3a05STakashi Sakamoto err = parse_stream_formation(buf, len, formations); 914eb7b3a05STakashi Sakamoto if (err < 0) 915eb7b3a05STakashi Sakamoto break; 916eb7b3a05STakashi Sakamoto } 917eb7b3a05STakashi Sakamoto 918eb7b3a05STakashi Sakamoto kfree(buf); 919eb7b3a05STakashi Sakamoto return err; 920eb7b3a05STakashi Sakamoto } 921eb7b3a05STakashi Sakamoto 922eb7b3a05STakashi Sakamoto static int 923eb7b3a05STakashi Sakamoto seek_msu_sync_input_plug(struct snd_bebob *bebob) 924eb7b3a05STakashi Sakamoto { 925eb7b3a05STakashi Sakamoto u8 plugs[AVC_PLUG_INFO_BUF_BYTES], addr[AVC_BRIDGECO_ADDR_BYTES]; 926a6b598bfSTakashi Sakamoto unsigned int i; 927a6b598bfSTakashi Sakamoto enum avc_bridgeco_plug_type type; 928eb7b3a05STakashi Sakamoto int err; 929eb7b3a05STakashi Sakamoto 930eb7b3a05STakashi Sakamoto /* Get the number of Music Sub Unit for both direction. */ 931eb7b3a05STakashi Sakamoto err = avc_general_get_plug_info(bebob->unit, 0x0c, 0x00, 0x00, plugs); 932eb7b3a05STakashi Sakamoto if (err < 0) { 933eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 934eb7b3a05STakashi Sakamoto "fail to get info for MSU in/out plugs: %d\n", 935eb7b3a05STakashi Sakamoto err); 936eb7b3a05STakashi Sakamoto goto end; 937eb7b3a05STakashi Sakamoto } 938eb7b3a05STakashi Sakamoto 939eb7b3a05STakashi Sakamoto /* seek destination plugs for 'MSU sync input' */ 940eb7b3a05STakashi Sakamoto bebob->sync_input_plug = -1; 941eb7b3a05STakashi Sakamoto for (i = 0; i < plugs[0]; i++) { 942eb7b3a05STakashi Sakamoto avc_bridgeco_fill_msu_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, i); 943eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 944eb7b3a05STakashi Sakamoto if (err < 0) { 945eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 946eb7b3a05STakashi Sakamoto "fail to get type for MSU in plug %d: %d\n", 947eb7b3a05STakashi Sakamoto i, err); 948eb7b3a05STakashi Sakamoto goto end; 949eb7b3a05STakashi Sakamoto } 950eb7b3a05STakashi Sakamoto 951eb7b3a05STakashi Sakamoto if (type == AVC_BRIDGECO_PLUG_TYPE_SYNC) { 952eb7b3a05STakashi Sakamoto bebob->sync_input_plug = i; 953eb7b3a05STakashi Sakamoto break; 954eb7b3a05STakashi Sakamoto } 955eb7b3a05STakashi Sakamoto } 956eb7b3a05STakashi Sakamoto end: 957eb7b3a05STakashi Sakamoto return err; 958eb7b3a05STakashi Sakamoto } 959eb7b3a05STakashi Sakamoto 960eb7b3a05STakashi Sakamoto int snd_bebob_stream_discover(struct snd_bebob *bebob) 961eb7b3a05STakashi Sakamoto { 9621fc9522aSTakashi Sakamoto struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock; 963eb7b3a05STakashi Sakamoto u8 plugs[AVC_PLUG_INFO_BUF_BYTES], addr[AVC_BRIDGECO_ADDR_BYTES]; 964eb7b3a05STakashi Sakamoto enum avc_bridgeco_plug_type type; 965eb7b3a05STakashi Sakamoto unsigned int i; 966eb7b3a05STakashi Sakamoto int err; 967eb7b3a05STakashi Sakamoto 968eb7b3a05STakashi Sakamoto /* the number of plugs for isoc in/out, ext in/out */ 969eb7b3a05STakashi Sakamoto err = avc_general_get_plug_info(bebob->unit, 0x1f, 0x07, 0x00, plugs); 970eb7b3a05STakashi Sakamoto if (err < 0) { 971eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 972eb7b3a05STakashi Sakamoto "fail to get info for isoc/external in/out plugs: %d\n", 973eb7b3a05STakashi Sakamoto err); 974eb7b3a05STakashi Sakamoto goto end; 975eb7b3a05STakashi Sakamoto } 976eb7b3a05STakashi Sakamoto 977eb7b3a05STakashi Sakamoto /* 978eb7b3a05STakashi Sakamoto * This module supports at least one isoc input plug and one isoc 979eb7b3a05STakashi Sakamoto * output plug. 980eb7b3a05STakashi Sakamoto */ 981eb7b3a05STakashi Sakamoto if ((plugs[0] == 0) || (plugs[1] == 0)) { 982eb7b3a05STakashi Sakamoto err = -ENOSYS; 983eb7b3a05STakashi Sakamoto goto end; 984eb7b3a05STakashi Sakamoto } 985eb7b3a05STakashi Sakamoto 986eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, 987eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 988eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 989eb7b3a05STakashi Sakamoto if (err < 0) { 990eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 991eb7b3a05STakashi Sakamoto "fail to get type for isoc in plug 0: %d\n", err); 992eb7b3a05STakashi Sakamoto goto end; 993eb7b3a05STakashi Sakamoto } else if (type != AVC_BRIDGECO_PLUG_TYPE_ISOC) { 994eb7b3a05STakashi Sakamoto err = -ENOSYS; 995eb7b3a05STakashi Sakamoto goto end; 996eb7b3a05STakashi Sakamoto } 997eb7b3a05STakashi Sakamoto err = fill_stream_formations(bebob, AVC_BRIDGECO_PLUG_DIR_IN, 0); 998eb7b3a05STakashi Sakamoto if (err < 0) 999eb7b3a05STakashi Sakamoto goto end; 1000eb7b3a05STakashi Sakamoto 1001eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_OUT, 1002eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 1003eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 1004eb7b3a05STakashi Sakamoto if (err < 0) { 1005eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 1006eb7b3a05STakashi Sakamoto "fail to get type for isoc out plug 0: %d\n", err); 1007eb7b3a05STakashi Sakamoto goto end; 1008eb7b3a05STakashi Sakamoto } else if (type != AVC_BRIDGECO_PLUG_TYPE_ISOC) { 1009eb7b3a05STakashi Sakamoto err = -ENOSYS; 1010eb7b3a05STakashi Sakamoto goto end; 1011eb7b3a05STakashi Sakamoto } 1012eb7b3a05STakashi Sakamoto err = fill_stream_formations(bebob, AVC_BRIDGECO_PLUG_DIR_OUT, 0); 1013eb7b3a05STakashi Sakamoto if (err < 0) 1014eb7b3a05STakashi Sakamoto goto end; 1015eb7b3a05STakashi Sakamoto 1016eb7b3a05STakashi Sakamoto /* count external input plugs for MIDI */ 1017eb7b3a05STakashi Sakamoto bebob->midi_input_ports = 0; 1018eb7b3a05STakashi Sakamoto for (i = 0; i < plugs[2]; i++) { 1019eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, 1020eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_EXT, i); 1021eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 1022eb7b3a05STakashi Sakamoto if (err < 0) { 1023eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 1024eb7b3a05STakashi Sakamoto "fail to get type for external in plug %d: %d\n", 1025eb7b3a05STakashi Sakamoto i, err); 1026eb7b3a05STakashi Sakamoto goto end; 1027eb7b3a05STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI) { 1028eb7b3a05STakashi Sakamoto bebob->midi_input_ports++; 1029eb7b3a05STakashi Sakamoto } 1030eb7b3a05STakashi Sakamoto } 1031eb7b3a05STakashi Sakamoto 1032eb7b3a05STakashi Sakamoto /* count external output plugs for MIDI */ 1033eb7b3a05STakashi Sakamoto bebob->midi_output_ports = 0; 1034eb7b3a05STakashi Sakamoto for (i = 0; i < plugs[3]; i++) { 1035eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_OUT, 1036eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_EXT, i); 1037eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 1038eb7b3a05STakashi Sakamoto if (err < 0) { 1039eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 1040eb7b3a05STakashi Sakamoto "fail to get type for external out plug %d: %d\n", 1041eb7b3a05STakashi Sakamoto i, err); 1042eb7b3a05STakashi Sakamoto goto end; 1043eb7b3a05STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI) { 1044eb7b3a05STakashi Sakamoto bebob->midi_output_ports++; 1045eb7b3a05STakashi Sakamoto } 1046eb7b3a05STakashi Sakamoto } 1047eb7b3a05STakashi Sakamoto 1048eb7b3a05STakashi Sakamoto /* for check source of clock later */ 10491fc9522aSTakashi Sakamoto if (!clk_spec) 1050eb7b3a05STakashi Sakamoto err = seek_msu_sync_input_plug(bebob); 1051eb7b3a05STakashi Sakamoto end: 1052eb7b3a05STakashi Sakamoto return err; 1053eb7b3a05STakashi Sakamoto } 1054618eabeaSTakashi Sakamoto 1055618eabeaSTakashi Sakamoto void snd_bebob_stream_lock_changed(struct snd_bebob *bebob) 1056618eabeaSTakashi Sakamoto { 1057618eabeaSTakashi Sakamoto bebob->dev_lock_changed = true; 1058618eabeaSTakashi Sakamoto wake_up(&bebob->hwdep_wait); 1059618eabeaSTakashi Sakamoto } 1060618eabeaSTakashi Sakamoto 1061618eabeaSTakashi Sakamoto int snd_bebob_stream_lock_try(struct snd_bebob *bebob) 1062618eabeaSTakashi Sakamoto { 1063618eabeaSTakashi Sakamoto int err; 1064618eabeaSTakashi Sakamoto 1065618eabeaSTakashi Sakamoto spin_lock_irq(&bebob->lock); 1066618eabeaSTakashi Sakamoto 1067618eabeaSTakashi Sakamoto /* user land lock this */ 1068618eabeaSTakashi Sakamoto if (bebob->dev_lock_count < 0) { 1069618eabeaSTakashi Sakamoto err = -EBUSY; 1070618eabeaSTakashi Sakamoto goto end; 1071618eabeaSTakashi Sakamoto } 1072618eabeaSTakashi Sakamoto 1073618eabeaSTakashi Sakamoto /* this is the first time */ 1074618eabeaSTakashi Sakamoto if (bebob->dev_lock_count++ == 0) 1075618eabeaSTakashi Sakamoto snd_bebob_stream_lock_changed(bebob); 1076618eabeaSTakashi Sakamoto err = 0; 1077618eabeaSTakashi Sakamoto end: 1078618eabeaSTakashi Sakamoto spin_unlock_irq(&bebob->lock); 1079618eabeaSTakashi Sakamoto return err; 1080618eabeaSTakashi Sakamoto } 1081618eabeaSTakashi Sakamoto 1082618eabeaSTakashi Sakamoto void snd_bebob_stream_lock_release(struct snd_bebob *bebob) 1083618eabeaSTakashi Sakamoto { 1084618eabeaSTakashi Sakamoto spin_lock_irq(&bebob->lock); 1085618eabeaSTakashi Sakamoto 1086618eabeaSTakashi Sakamoto if (WARN_ON(bebob->dev_lock_count <= 0)) 1087618eabeaSTakashi Sakamoto goto end; 1088618eabeaSTakashi Sakamoto if (--bebob->dev_lock_count == 0) 1089618eabeaSTakashi Sakamoto snd_bebob_stream_lock_changed(bebob); 1090618eabeaSTakashi Sakamoto end: 1091618eabeaSTakashi Sakamoto spin_unlock_irq(&bebob->lock); 1092618eabeaSTakashi Sakamoto } 1093