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; 1255a668812STakashi Sakamoto enum avc_bridgeco_plug_type type; 126eb7b3a05STakashi Sakamoto int err = 0; 127eb7b3a05STakashi Sakamoto 128eb7b3a05STakashi Sakamoto *internal = false; 129eb7b3a05STakashi Sakamoto 1301fc9522aSTakashi Sakamoto /* 1.The device has its own operation to switch source of clock */ 1311fc9522aSTakashi Sakamoto if (clk_spec) { 1321fc9522aSTakashi Sakamoto err = clk_spec->get(bebob, &id); 133d1d0b6b6SChristian Vogel if (err < 0) { 1341fc9522aSTakashi Sakamoto dev_err(&bebob->unit->device, 1351fc9522aSTakashi Sakamoto "fail to get clock source: %d\n", err); 136d1d0b6b6SChristian Vogel goto end; 137d1d0b6b6SChristian Vogel } 138d1d0b6b6SChristian Vogel 139d1d0b6b6SChristian Vogel if (id >= clk_spec->num) { 140d1d0b6b6SChristian Vogel dev_err(&bebob->unit->device, 141d1d0b6b6SChristian Vogel "clock source %d out of range 0..%d\n", 142d1d0b6b6SChristian Vogel id, clk_spec->num - 1); 143d1d0b6b6SChristian Vogel err = -EIO; 144d1d0b6b6SChristian Vogel goto end; 145d1d0b6b6SChristian Vogel } 146d1d0b6b6SChristian Vogel 147d1d0b6b6SChristian Vogel if (strncmp(clk_spec->labels[id], SND_BEBOB_CLOCK_INTERNAL, 1481fc9522aSTakashi Sakamoto strlen(SND_BEBOB_CLOCK_INTERNAL)) == 0) 1491fc9522aSTakashi Sakamoto *internal = true; 150d1d0b6b6SChristian Vogel 1511fc9522aSTakashi Sakamoto goto end; 1521fc9522aSTakashi Sakamoto } 1531fc9522aSTakashi Sakamoto 154eb7b3a05STakashi Sakamoto /* 1551fc9522aSTakashi Sakamoto * 2.The device don't support to switch source of clock then assumed 156eb7b3a05STakashi Sakamoto * to use internal clock always 157eb7b3a05STakashi Sakamoto */ 158eb7b3a05STakashi Sakamoto if (bebob->sync_input_plug < 0) { 159eb7b3a05STakashi Sakamoto *internal = true; 160eb7b3a05STakashi Sakamoto goto end; 161eb7b3a05STakashi Sakamoto } 162eb7b3a05STakashi Sakamoto 163eb7b3a05STakashi Sakamoto /* 1641fc9522aSTakashi Sakamoto * 3.The device supports to switch source of clock by an usual way. 165eb7b3a05STakashi Sakamoto * Let's check input for 'Music Sub Unit Sync Input' plug. 166eb7b3a05STakashi Sakamoto */ 167eb7b3a05STakashi Sakamoto avc_bridgeco_fill_msu_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, 168eb7b3a05STakashi Sakamoto bebob->sync_input_plug); 169eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_input(bebob->unit, addr, input); 170eb7b3a05STakashi Sakamoto if (err < 0) { 171eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 172eb7b3a05STakashi Sakamoto "fail to get an input for MSU in plug %d: %d\n", 173eb7b3a05STakashi Sakamoto bebob->sync_input_plug, err); 174eb7b3a05STakashi Sakamoto goto end; 175eb7b3a05STakashi Sakamoto } 176eb7b3a05STakashi Sakamoto 177eb7b3a05STakashi Sakamoto /* 178eb7b3a05STakashi Sakamoto * If there are no input plugs, all of fields are 0xff. 179eb7b3a05STakashi Sakamoto * Here check the first field. This field is used for direction. 180eb7b3a05STakashi Sakamoto */ 181eb7b3a05STakashi Sakamoto if (input[0] == 0xff) { 182eb7b3a05STakashi Sakamoto *internal = true; 183eb7b3a05STakashi Sakamoto goto end; 184eb7b3a05STakashi Sakamoto } 185eb7b3a05STakashi Sakamoto 1865a668812STakashi Sakamoto /* The source from any output plugs is for one purpose only. */ 1875a668812STakashi Sakamoto if (input[0] == AVC_BRIDGECO_PLUG_DIR_OUT) { 188eb7b3a05STakashi Sakamoto /* 1895a668812STakashi Sakamoto * In BeBoB architecture, the source from music subunit may 1905a668812STakashi Sakamoto * bypass from oPCR[0]. This means that this source gives 1915a668812STakashi Sakamoto * synchronization to IEEE 1394 cycle start packet. 192eb7b3a05STakashi Sakamoto */ 1935a668812STakashi Sakamoto if (input[1] == AVC_BRIDGECO_PLUG_MODE_SUBUNIT && 1945a668812STakashi Sakamoto input[2] == 0x0c) { 1955a668812STakashi Sakamoto *internal = true; 1965a668812STakashi Sakamoto goto end; 1975a668812STakashi Sakamoto } 1985a668812STakashi Sakamoto /* The source from any input units is for several purposes. */ 1995a668812STakashi Sakamoto } else if (input[1] == AVC_BRIDGECO_PLUG_MODE_UNIT) { 2005a668812STakashi Sakamoto if (input[2] == AVC_BRIDGECO_PLUG_UNIT_ISOC) { 2015a668812STakashi Sakamoto if (input[3] == 0x00) { 2025a668812STakashi Sakamoto /* 2035a668812STakashi Sakamoto * This source comes from iPCR[0]. This means 2045a668812STakashi Sakamoto * that presentation timestamp calculated by 2055a668812STakashi Sakamoto * SYT series of the received packets. In 2065a668812STakashi Sakamoto * short, this driver is the master of 2075a668812STakashi Sakamoto * synchronization. 2085a668812STakashi Sakamoto */ 2095a668812STakashi Sakamoto err = -EIO; 2105a668812STakashi Sakamoto goto end; 2115a668812STakashi Sakamoto } else { 2125a668812STakashi Sakamoto /* 2135a668812STakashi Sakamoto * This source comes from iPCR[1-29]. This 2145a668812STakashi Sakamoto * means that the synchronization stream is not 2155a668812STakashi Sakamoto * the Audio/MIDI compound stream. 2165a668812STakashi Sakamoto */ 2175a668812STakashi Sakamoto *internal = false; 2185a668812STakashi Sakamoto goto end; 2195a668812STakashi Sakamoto } 2205a668812STakashi Sakamoto } else if (input[2] == AVC_BRIDGECO_PLUG_UNIT_EXT) { 2215a668812STakashi Sakamoto /* Check type of this plug. */ 2225a668812STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, 2235a668812STakashi Sakamoto AVC_BRIDGECO_PLUG_DIR_IN, 2245a668812STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_EXT, 2255a668812STakashi Sakamoto input[3]); 2265a668812STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, 2275a668812STakashi Sakamoto &type); 2285a668812STakashi Sakamoto if (err < 0) 2295a668812STakashi Sakamoto goto end; 2305a668812STakashi Sakamoto 2315a668812STakashi Sakamoto if (type == AVC_BRIDGECO_PLUG_TYPE_DIG) { 2325a668812STakashi Sakamoto /* 2335a668812STakashi Sakamoto * SPDIF/ADAT or sometimes (not always) word 2345a668812STakashi Sakamoto * clock. 2355a668812STakashi Sakamoto */ 2365a668812STakashi Sakamoto *internal = false; 2375a668812STakashi Sakamoto goto end; 2385a668812STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_SYNC) { 2395a668812STakashi Sakamoto /* Often word clock. */ 2405a668812STakashi Sakamoto *internal = false; 2415a668812STakashi Sakamoto goto end; 2425a668812STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_ADDITION) { 2435a668812STakashi Sakamoto /* 2445a668812STakashi Sakamoto * Not standard. 2455a668812STakashi Sakamoto * Mostly, additional internal clock. 2465a668812STakashi Sakamoto */ 2475a668812STakashi Sakamoto *internal = true; 2485a668812STakashi Sakamoto goto end; 2495a668812STakashi Sakamoto } 2505a668812STakashi Sakamoto } 2515a668812STakashi Sakamoto } 2525a668812STakashi Sakamoto 2535a668812STakashi Sakamoto /* Not supported. */ 2545a668812STakashi Sakamoto err = -EIO; 255eb7b3a05STakashi Sakamoto end: 256eb7b3a05STakashi Sakamoto return err; 257eb7b3a05STakashi Sakamoto } 258eb7b3a05STakashi Sakamoto 259eb7b3a05STakashi Sakamoto static unsigned int 260eb7b3a05STakashi Sakamoto map_data_channels(struct snd_bebob *bebob, struct amdtp_stream *s) 261eb7b3a05STakashi Sakamoto { 262eb7b3a05STakashi Sakamoto unsigned int sec, sections, ch, channels; 263eb7b3a05STakashi Sakamoto unsigned int pcm, midi, location; 264eb7b3a05STakashi Sakamoto unsigned int stm_pos, sec_loc, pos; 265eb7b3a05STakashi Sakamoto u8 *buf, addr[AVC_BRIDGECO_ADDR_BYTES], type; 266eb7b3a05STakashi Sakamoto enum avc_bridgeco_plug_dir dir; 267eb7b3a05STakashi Sakamoto int err; 268eb7b3a05STakashi Sakamoto 269eb7b3a05STakashi Sakamoto /* 270eb7b3a05STakashi Sakamoto * The length of return value of this command cannot be expected. Here 271eb7b3a05STakashi Sakamoto * use the maximum length of FCP. 272eb7b3a05STakashi Sakamoto */ 273eb7b3a05STakashi Sakamoto buf = kzalloc(256, GFP_KERNEL); 274eb7b3a05STakashi Sakamoto if (buf == NULL) 275eb7b3a05STakashi Sakamoto return -ENOMEM; 276eb7b3a05STakashi Sakamoto 277eb7b3a05STakashi Sakamoto if (s == &bebob->tx_stream) 278eb7b3a05STakashi Sakamoto dir = AVC_BRIDGECO_PLUG_DIR_OUT; 279eb7b3a05STakashi Sakamoto else 280eb7b3a05STakashi Sakamoto dir = AVC_BRIDGECO_PLUG_DIR_IN; 281eb7b3a05STakashi Sakamoto 282eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, dir, AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 283eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_ch_pos(bebob->unit, addr, buf, 256); 284eb7b3a05STakashi Sakamoto if (err < 0) { 285eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 286eb7b3a05STakashi Sakamoto "fail to get channel position for isoc %s plug 0: %d\n", 287eb7b3a05STakashi Sakamoto (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : "out", 288eb7b3a05STakashi Sakamoto err); 289eb7b3a05STakashi Sakamoto goto end; 290eb7b3a05STakashi Sakamoto } 291eb7b3a05STakashi Sakamoto pos = 0; 292eb7b3a05STakashi Sakamoto 293eb7b3a05STakashi Sakamoto /* positions in I/O buffer */ 294eb7b3a05STakashi Sakamoto pcm = 0; 295eb7b3a05STakashi Sakamoto midi = 0; 296eb7b3a05STakashi Sakamoto 297eb7b3a05STakashi Sakamoto /* the number of sections in AMDTP packet */ 298eb7b3a05STakashi Sakamoto sections = buf[pos++]; 299eb7b3a05STakashi Sakamoto 300eb7b3a05STakashi Sakamoto for (sec = 0; sec < sections; sec++) { 301eb7b3a05STakashi Sakamoto /* type of this section */ 302eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, dir, 303eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 304eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_section_type(bebob->unit, addr, 305eb7b3a05STakashi Sakamoto sec, &type); 306eb7b3a05STakashi Sakamoto if (err < 0) { 307eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 308eb7b3a05STakashi Sakamoto "fail to get section type for isoc %s plug 0: %d\n", 309eb7b3a05STakashi Sakamoto (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : 310eb7b3a05STakashi Sakamoto "out", 311eb7b3a05STakashi Sakamoto err); 312eb7b3a05STakashi Sakamoto goto end; 313eb7b3a05STakashi Sakamoto } 314eb7b3a05STakashi Sakamoto /* NoType */ 315eb7b3a05STakashi Sakamoto if (type == 0xff) { 316eb7b3a05STakashi Sakamoto err = -ENOSYS; 317eb7b3a05STakashi Sakamoto goto end; 318eb7b3a05STakashi Sakamoto } 319eb7b3a05STakashi Sakamoto 320eb7b3a05STakashi Sakamoto /* the number of channels in this section */ 321eb7b3a05STakashi Sakamoto channels = buf[pos++]; 322eb7b3a05STakashi Sakamoto 323eb7b3a05STakashi Sakamoto for (ch = 0; ch < channels; ch++) { 324eb7b3a05STakashi Sakamoto /* position of this channel in AMDTP packet */ 325eb7b3a05STakashi Sakamoto stm_pos = buf[pos++] - 1; 326eb7b3a05STakashi Sakamoto /* location of this channel in this section */ 327eb7b3a05STakashi Sakamoto sec_loc = buf[pos++] - 1; 328eb7b3a05STakashi Sakamoto 3299076c22dSTakashi Sakamoto /* 3309076c22dSTakashi Sakamoto * Basically the number of location is within the 3319076c22dSTakashi Sakamoto * number of channels in this section. But some models 3329076c22dSTakashi Sakamoto * of M-Audio don't follow this. Its location for MIDI 3339076c22dSTakashi Sakamoto * is the position of MIDI channels in AMDTP packet. 3349076c22dSTakashi Sakamoto */ 3359076c22dSTakashi Sakamoto if (sec_loc >= channels) 3369076c22dSTakashi Sakamoto sec_loc = ch; 3379076c22dSTakashi Sakamoto 338eb7b3a05STakashi Sakamoto switch (type) { 339eb7b3a05STakashi Sakamoto /* for MIDI conformant data channel */ 340eb7b3a05STakashi Sakamoto case 0x0a: 341eb7b3a05STakashi Sakamoto /* AMDTP_MAX_CHANNELS_FOR_MIDI is 1. */ 342eb7b3a05STakashi Sakamoto if ((midi > 0) && (stm_pos != midi)) { 343eb7b3a05STakashi Sakamoto err = -ENOSYS; 344eb7b3a05STakashi Sakamoto goto end; 345eb7b3a05STakashi Sakamoto } 346eb7b3a05STakashi Sakamoto s->midi_position = stm_pos; 347eb7b3a05STakashi Sakamoto midi = stm_pos; 348eb7b3a05STakashi Sakamoto break; 349eb7b3a05STakashi Sakamoto /* for PCM data channel */ 350eb7b3a05STakashi Sakamoto case 0x01: /* Headphone */ 351eb7b3a05STakashi Sakamoto case 0x02: /* Microphone */ 352eb7b3a05STakashi Sakamoto case 0x03: /* Line */ 353eb7b3a05STakashi Sakamoto case 0x04: /* SPDIF */ 354eb7b3a05STakashi Sakamoto case 0x05: /* ADAT */ 355eb7b3a05STakashi Sakamoto case 0x06: /* TDIF */ 356eb7b3a05STakashi Sakamoto case 0x07: /* MADI */ 357eb7b3a05STakashi Sakamoto /* for undefined/changeable signal */ 358eb7b3a05STakashi Sakamoto case 0x08: /* Analog */ 359eb7b3a05STakashi Sakamoto case 0x09: /* Digital */ 360eb7b3a05STakashi Sakamoto default: 361eb7b3a05STakashi Sakamoto location = pcm + sec_loc; 362eb7b3a05STakashi Sakamoto if (location >= AMDTP_MAX_CHANNELS_FOR_PCM) { 363eb7b3a05STakashi Sakamoto err = -ENOSYS; 364eb7b3a05STakashi Sakamoto goto end; 365eb7b3a05STakashi Sakamoto } 366eb7b3a05STakashi Sakamoto s->pcm_positions[location] = stm_pos; 367eb7b3a05STakashi Sakamoto break; 368eb7b3a05STakashi Sakamoto } 369eb7b3a05STakashi Sakamoto } 370eb7b3a05STakashi Sakamoto 371eb7b3a05STakashi Sakamoto if (type != 0x0a) 372eb7b3a05STakashi Sakamoto pcm += channels; 373eb7b3a05STakashi Sakamoto else 374eb7b3a05STakashi Sakamoto midi += channels; 375eb7b3a05STakashi Sakamoto } 376eb7b3a05STakashi Sakamoto end: 377eb7b3a05STakashi Sakamoto kfree(buf); 378eb7b3a05STakashi Sakamoto return err; 379eb7b3a05STakashi Sakamoto } 380eb7b3a05STakashi Sakamoto 381eb7b3a05STakashi Sakamoto static int 382eb7b3a05STakashi Sakamoto init_both_connections(struct snd_bebob *bebob) 383eb7b3a05STakashi Sakamoto { 384eb7b3a05STakashi Sakamoto int err; 385eb7b3a05STakashi Sakamoto 386eb7b3a05STakashi Sakamoto err = cmp_connection_init(&bebob->in_conn, 387eb7b3a05STakashi Sakamoto bebob->unit, CMP_INPUT, 0); 388eb7b3a05STakashi Sakamoto if (err < 0) 389eb7b3a05STakashi Sakamoto goto end; 390eb7b3a05STakashi Sakamoto 391eb7b3a05STakashi Sakamoto err = cmp_connection_init(&bebob->out_conn, 392eb7b3a05STakashi Sakamoto bebob->unit, CMP_OUTPUT, 0); 393eb7b3a05STakashi Sakamoto if (err < 0) 394eb7b3a05STakashi Sakamoto cmp_connection_destroy(&bebob->in_conn); 395eb7b3a05STakashi Sakamoto end: 396eb7b3a05STakashi Sakamoto return err; 397eb7b3a05STakashi Sakamoto } 398eb7b3a05STakashi Sakamoto 399eb7b3a05STakashi Sakamoto static int 400eb7b3a05STakashi Sakamoto check_connection_used_by_others(struct snd_bebob *bebob, struct amdtp_stream *s) 401eb7b3a05STakashi Sakamoto { 402eb7b3a05STakashi Sakamoto struct cmp_connection *conn; 403eb7b3a05STakashi Sakamoto bool used; 404eb7b3a05STakashi Sakamoto int err; 405eb7b3a05STakashi Sakamoto 406eb7b3a05STakashi Sakamoto if (s == &bebob->tx_stream) 407eb7b3a05STakashi Sakamoto conn = &bebob->out_conn; 408eb7b3a05STakashi Sakamoto else 409eb7b3a05STakashi Sakamoto conn = &bebob->in_conn; 410eb7b3a05STakashi Sakamoto 411eb7b3a05STakashi Sakamoto err = cmp_connection_check_used(conn, &used); 412eb7b3a05STakashi Sakamoto if ((err >= 0) && used && !amdtp_stream_running(s)) { 413eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 414eb7b3a05STakashi Sakamoto "Connection established by others: %cPCR[%d]\n", 415eb7b3a05STakashi Sakamoto (conn->direction == CMP_OUTPUT) ? 'o' : 'i', 416eb7b3a05STakashi Sakamoto conn->pcr_index); 417eb7b3a05STakashi Sakamoto err = -EBUSY; 418eb7b3a05STakashi Sakamoto } 419eb7b3a05STakashi Sakamoto 420eb7b3a05STakashi Sakamoto return err; 421eb7b3a05STakashi Sakamoto } 422eb7b3a05STakashi Sakamoto 423eb7b3a05STakashi Sakamoto static int 424eb7b3a05STakashi Sakamoto make_both_connections(struct snd_bebob *bebob, unsigned int rate) 425eb7b3a05STakashi Sakamoto { 426b6bc8123STakashi Sakamoto int index, pcm_channels, midi_channels, err = 0; 427b6bc8123STakashi Sakamoto 428b6bc8123STakashi Sakamoto if (bebob->connected) 429b6bc8123STakashi Sakamoto goto end; 430eb7b3a05STakashi Sakamoto 431eb7b3a05STakashi Sakamoto /* confirm params for both streams */ 432eb7b3a05STakashi Sakamoto index = get_formation_index(rate); 433eb7b3a05STakashi Sakamoto pcm_channels = bebob->tx_stream_formations[index].pcm; 434eb7b3a05STakashi Sakamoto midi_channels = bebob->tx_stream_formations[index].midi; 435eb7b3a05STakashi Sakamoto amdtp_stream_set_parameters(&bebob->tx_stream, 436eb7b3a05STakashi Sakamoto rate, pcm_channels, midi_channels * 8); 437eb7b3a05STakashi Sakamoto pcm_channels = bebob->rx_stream_formations[index].pcm; 438eb7b3a05STakashi Sakamoto midi_channels = bebob->rx_stream_formations[index].midi; 439eb7b3a05STakashi Sakamoto amdtp_stream_set_parameters(&bebob->rx_stream, 440eb7b3a05STakashi Sakamoto rate, pcm_channels, midi_channels * 8); 441eb7b3a05STakashi Sakamoto 442eb7b3a05STakashi Sakamoto /* establish connections for both streams */ 443eb7b3a05STakashi Sakamoto err = cmp_connection_establish(&bebob->out_conn, 444eb7b3a05STakashi Sakamoto amdtp_stream_get_max_payload(&bebob->tx_stream)); 445eb7b3a05STakashi Sakamoto if (err < 0) 446eb7b3a05STakashi Sakamoto goto end; 447eb7b3a05STakashi Sakamoto err = cmp_connection_establish(&bebob->in_conn, 448eb7b3a05STakashi Sakamoto amdtp_stream_get_max_payload(&bebob->rx_stream)); 449b6bc8123STakashi Sakamoto if (err < 0) { 450eb7b3a05STakashi Sakamoto cmp_connection_break(&bebob->out_conn); 451b6bc8123STakashi Sakamoto goto end; 452b6bc8123STakashi Sakamoto } 453b6bc8123STakashi Sakamoto 454b6bc8123STakashi Sakamoto bebob->connected = true; 455eb7b3a05STakashi Sakamoto end: 456eb7b3a05STakashi Sakamoto return err; 457eb7b3a05STakashi Sakamoto } 458eb7b3a05STakashi Sakamoto 459eb7b3a05STakashi Sakamoto static void 460eb7b3a05STakashi Sakamoto break_both_connections(struct snd_bebob *bebob) 461eb7b3a05STakashi Sakamoto { 462eb7b3a05STakashi Sakamoto cmp_connection_break(&bebob->in_conn); 463eb7b3a05STakashi Sakamoto cmp_connection_break(&bebob->out_conn); 464b6bc8123STakashi Sakamoto 465b6bc8123STakashi Sakamoto bebob->connected = false; 4663149ac48STakashi Sakamoto 4673149ac48STakashi Sakamoto /* These models seems to be in transition state for a longer time. */ 4683149ac48STakashi Sakamoto if (bebob->maudio_special_quirk != NULL) 4693149ac48STakashi Sakamoto msleep(200); 470eb7b3a05STakashi Sakamoto } 471eb7b3a05STakashi Sakamoto 472eb7b3a05STakashi Sakamoto static void 473eb7b3a05STakashi Sakamoto destroy_both_connections(struct snd_bebob *bebob) 474eb7b3a05STakashi Sakamoto { 475eb7b3a05STakashi Sakamoto cmp_connection_destroy(&bebob->in_conn); 476eb7b3a05STakashi Sakamoto cmp_connection_destroy(&bebob->out_conn); 477eb7b3a05STakashi Sakamoto } 478eb7b3a05STakashi Sakamoto 479eb7b3a05STakashi Sakamoto static int 480eb7b3a05STakashi Sakamoto get_sync_mode(struct snd_bebob *bebob, enum cip_flags *sync_mode) 481eb7b3a05STakashi Sakamoto { 482eb7b3a05STakashi Sakamoto /* currently this module doesn't support SYT-Match mode */ 483eb7b3a05STakashi Sakamoto *sync_mode = CIP_SYNC_TO_DEVICE; 484eb7b3a05STakashi Sakamoto return 0; 485eb7b3a05STakashi Sakamoto } 486eb7b3a05STakashi Sakamoto 487eb7b3a05STakashi Sakamoto static int 488eb7b3a05STakashi Sakamoto start_stream(struct snd_bebob *bebob, struct amdtp_stream *stream, 489eb7b3a05STakashi Sakamoto unsigned int rate) 490eb7b3a05STakashi Sakamoto { 491eb7b3a05STakashi Sakamoto struct cmp_connection *conn; 492eb7b3a05STakashi Sakamoto int err = 0; 493eb7b3a05STakashi Sakamoto 494eb7b3a05STakashi Sakamoto if (stream == &bebob->rx_stream) 495eb7b3a05STakashi Sakamoto conn = &bebob->in_conn; 496eb7b3a05STakashi Sakamoto else 497eb7b3a05STakashi Sakamoto conn = &bebob->out_conn; 498eb7b3a05STakashi Sakamoto 499eb7b3a05STakashi Sakamoto /* channel mapping */ 5003149ac48STakashi Sakamoto if (bebob->maudio_special_quirk == NULL) { 501eb7b3a05STakashi Sakamoto err = map_data_channels(bebob, stream); 502eb7b3a05STakashi Sakamoto if (err < 0) 503eb7b3a05STakashi Sakamoto goto end; 5043149ac48STakashi Sakamoto } 505eb7b3a05STakashi Sakamoto 506eb7b3a05STakashi Sakamoto /* start amdtp stream */ 507eb7b3a05STakashi Sakamoto err = amdtp_stream_start(stream, 508eb7b3a05STakashi Sakamoto conn->resources.channel, 509eb7b3a05STakashi Sakamoto conn->speed); 510eb7b3a05STakashi Sakamoto end: 511eb7b3a05STakashi Sakamoto return err; 512eb7b3a05STakashi Sakamoto } 513eb7b3a05STakashi Sakamoto 514eb7b3a05STakashi Sakamoto int snd_bebob_stream_init_duplex(struct snd_bebob *bebob) 515eb7b3a05STakashi Sakamoto { 516eb7b3a05STakashi Sakamoto int err; 517eb7b3a05STakashi Sakamoto 518eb7b3a05STakashi Sakamoto err = init_both_connections(bebob); 519eb7b3a05STakashi Sakamoto if (err < 0) 520eb7b3a05STakashi Sakamoto goto end; 521eb7b3a05STakashi Sakamoto 522eb7b3a05STakashi Sakamoto err = amdtp_stream_init(&bebob->tx_stream, bebob->unit, 523eb7b3a05STakashi Sakamoto AMDTP_IN_STREAM, CIP_BLOCKING); 524eb7b3a05STakashi Sakamoto if (err < 0) { 525eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->tx_stream); 526eb7b3a05STakashi Sakamoto destroy_both_connections(bebob); 527eb7b3a05STakashi Sakamoto goto end; 528eb7b3a05STakashi Sakamoto } 529b6bc8123STakashi Sakamoto /* See comments in next function */ 530b6bc8123STakashi Sakamoto init_completion(&bebob->bus_reset); 531b6bc8123STakashi Sakamoto bebob->tx_stream.flags |= CIP_SKIP_INIT_DBC_CHECK; 5329d59124cSTakashi Sakamoto /* 5339d59124cSTakashi Sakamoto * At high sampling rate, M-Audio special firmware transmits empty 5349d59124cSTakashi Sakamoto * packet with the value of dbc incremented by 8 but the others are 5359d59124cSTakashi Sakamoto * valid to IEC 61883-1. 5369d59124cSTakashi Sakamoto */ 5379d59124cSTakashi Sakamoto if (bebob->maudio_special_quirk) 5389d59124cSTakashi Sakamoto bebob->tx_stream.flags |= CIP_EMPTY_HAS_WRONG_DBC; 539eb7b3a05STakashi Sakamoto 540eb7b3a05STakashi Sakamoto err = amdtp_stream_init(&bebob->rx_stream, bebob->unit, 541eb7b3a05STakashi Sakamoto AMDTP_OUT_STREAM, CIP_BLOCKING); 542eb7b3a05STakashi Sakamoto if (err < 0) { 543eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->tx_stream); 544eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->rx_stream); 545eb7b3a05STakashi Sakamoto destroy_both_connections(bebob); 546eb7b3a05STakashi Sakamoto } 547eb7b3a05STakashi Sakamoto end: 548eb7b3a05STakashi Sakamoto return err; 549eb7b3a05STakashi Sakamoto } 550eb7b3a05STakashi Sakamoto 5514a286d55STakashi Sakamoto int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, unsigned int rate) 552eb7b3a05STakashi Sakamoto { 5531fc9522aSTakashi Sakamoto struct snd_bebob_rate_spec *rate_spec = bebob->spec->rate; 554eb7b3a05STakashi Sakamoto struct amdtp_stream *master, *slave; 555eb7b3a05STakashi Sakamoto atomic_t *slave_substreams; 556eb7b3a05STakashi Sakamoto enum cip_flags sync_mode; 557eb7b3a05STakashi Sakamoto unsigned int curr_rate; 558b6bc8123STakashi Sakamoto bool updated = false; 559eb7b3a05STakashi Sakamoto int err = 0; 560eb7b3a05STakashi Sakamoto 561b6bc8123STakashi Sakamoto /* 562b6bc8123STakashi Sakamoto * Normal BeBoB firmware has a quirk at bus reset to transmits packets 563b6bc8123STakashi Sakamoto * with discontinuous value in dbc field. 564b6bc8123STakashi Sakamoto * 565b6bc8123STakashi Sakamoto * This 'struct completion' is used to call .update() at first to update 566b6bc8123STakashi Sakamoto * connections/streams. Next following codes handle streaming error. 567b6bc8123STakashi Sakamoto */ 568b6bc8123STakashi Sakamoto if (amdtp_streaming_error(&bebob->tx_stream)) { 569b6bc8123STakashi Sakamoto if (completion_done(&bebob->bus_reset)) 570b6bc8123STakashi Sakamoto reinit_completion(&bebob->bus_reset); 571b6bc8123STakashi Sakamoto 572b6bc8123STakashi Sakamoto updated = (wait_for_completion_interruptible_timeout( 573b6bc8123STakashi Sakamoto &bebob->bus_reset, 574b6bc8123STakashi Sakamoto msecs_to_jiffies(FW_ISO_RESOURCE_DELAY)) > 0); 575b6bc8123STakashi Sakamoto } 576b6bc8123STakashi Sakamoto 577eb7b3a05STakashi Sakamoto mutex_lock(&bebob->mutex); 578eb7b3a05STakashi Sakamoto 579eb7b3a05STakashi Sakamoto /* Need no substreams */ 580eb7b3a05STakashi Sakamoto if (atomic_read(&bebob->playback_substreams) == 0 && 581eb7b3a05STakashi Sakamoto atomic_read(&bebob->capture_substreams) == 0) 582eb7b3a05STakashi Sakamoto goto end; 583eb7b3a05STakashi Sakamoto 584eb7b3a05STakashi Sakamoto err = get_sync_mode(bebob, &sync_mode); 585eb7b3a05STakashi Sakamoto if (err < 0) 586eb7b3a05STakashi Sakamoto goto end; 587eb7b3a05STakashi Sakamoto if (sync_mode == CIP_SYNC_TO_DEVICE) { 588eb7b3a05STakashi Sakamoto master = &bebob->tx_stream; 589eb7b3a05STakashi Sakamoto slave = &bebob->rx_stream; 590eb7b3a05STakashi Sakamoto slave_substreams = &bebob->playback_substreams; 591eb7b3a05STakashi Sakamoto } else { 592eb7b3a05STakashi Sakamoto master = &bebob->rx_stream; 593eb7b3a05STakashi Sakamoto slave = &bebob->tx_stream; 594eb7b3a05STakashi Sakamoto slave_substreams = &bebob->capture_substreams; 595eb7b3a05STakashi Sakamoto } 596eb7b3a05STakashi Sakamoto 597eb7b3a05STakashi Sakamoto /* 598eb7b3a05STakashi Sakamoto * Considering JACK/FFADO streaming: 599eb7b3a05STakashi Sakamoto * TODO: This can be removed hwdep functionality becomes popular. 600eb7b3a05STakashi Sakamoto */ 601eb7b3a05STakashi Sakamoto err = check_connection_used_by_others(bebob, master); 602eb7b3a05STakashi Sakamoto if (err < 0) 603eb7b3a05STakashi Sakamoto goto end; 604eb7b3a05STakashi Sakamoto 605b6bc8123STakashi Sakamoto /* 606b6bc8123STakashi Sakamoto * packet queueing error or detecting discontinuity 607b6bc8123STakashi Sakamoto * 608b6bc8123STakashi Sakamoto * At bus reset, connections should not be broken here. So streams need 609b6bc8123STakashi Sakamoto * to be re-started. This is a reason to use SKIP_INIT_DBC_CHECK flag. 610b6bc8123STakashi Sakamoto */ 611b6bc8123STakashi Sakamoto if (amdtp_streaming_error(master)) 612eb7b3a05STakashi Sakamoto amdtp_stream_stop(master); 613eb7b3a05STakashi Sakamoto if (amdtp_streaming_error(slave)) 614eb7b3a05STakashi Sakamoto amdtp_stream_stop(slave); 615b6bc8123STakashi Sakamoto if (!updated && 616b6bc8123STakashi Sakamoto !amdtp_stream_running(master) && !amdtp_stream_running(slave)) 617b6bc8123STakashi Sakamoto break_both_connections(bebob); 618eb7b3a05STakashi Sakamoto 619eb7b3a05STakashi Sakamoto /* stop streams if rate is different */ 6201fc9522aSTakashi Sakamoto err = rate_spec->get(bebob, &curr_rate); 621eb7b3a05STakashi Sakamoto if (err < 0) { 622eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 623eb7b3a05STakashi Sakamoto "fail to get sampling rate: %d\n", err); 624eb7b3a05STakashi Sakamoto goto end; 625eb7b3a05STakashi Sakamoto } 626eb7b3a05STakashi Sakamoto if (rate == 0) 627eb7b3a05STakashi Sakamoto rate = curr_rate; 628eb7b3a05STakashi Sakamoto if (rate != curr_rate) { 629eb7b3a05STakashi Sakamoto amdtp_stream_stop(master); 630eb7b3a05STakashi Sakamoto amdtp_stream_stop(slave); 631eb7b3a05STakashi Sakamoto break_both_connections(bebob); 632eb7b3a05STakashi Sakamoto } 633eb7b3a05STakashi Sakamoto 634eb7b3a05STakashi Sakamoto /* master should be always running */ 635eb7b3a05STakashi Sakamoto if (!amdtp_stream_running(master)) { 636eb7b3a05STakashi Sakamoto amdtp_stream_set_sync(sync_mode, master, slave); 637eb7b3a05STakashi Sakamoto bebob->master = master; 638eb7b3a05STakashi Sakamoto 639eb7b3a05STakashi Sakamoto /* 640eb7b3a05STakashi Sakamoto * NOTE: 641eb7b3a05STakashi Sakamoto * If establishing connections at first, Yamaha GO46 642eb7b3a05STakashi Sakamoto * (and maybe Terratec X24) don't generate sound. 6433149ac48STakashi Sakamoto * 6443149ac48STakashi Sakamoto * For firmware customized by M-Audio, refer to next NOTE. 645eb7b3a05STakashi Sakamoto */ 6463149ac48STakashi Sakamoto if (bebob->maudio_special_quirk == NULL) { 6471fc9522aSTakashi Sakamoto err = rate_spec->set(bebob, rate); 648eb7b3a05STakashi Sakamoto if (err < 0) { 649eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 650eb7b3a05STakashi Sakamoto "fail to set sampling rate: %d\n", 651eb7b3a05STakashi Sakamoto err); 652eb7b3a05STakashi Sakamoto goto end; 653eb7b3a05STakashi Sakamoto } 6543149ac48STakashi Sakamoto } 655eb7b3a05STakashi Sakamoto 656eb7b3a05STakashi Sakamoto err = make_both_connections(bebob, rate); 657eb7b3a05STakashi Sakamoto if (err < 0) 658eb7b3a05STakashi Sakamoto goto end; 659eb7b3a05STakashi Sakamoto 660eb7b3a05STakashi Sakamoto err = start_stream(bebob, master, rate); 661eb7b3a05STakashi Sakamoto if (err < 0) { 662eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 663eb7b3a05STakashi Sakamoto "fail to run AMDTP master stream:%d\n", err); 664eb7b3a05STakashi Sakamoto break_both_connections(bebob); 665eb7b3a05STakashi Sakamoto goto end; 666eb7b3a05STakashi Sakamoto } 667eb7b3a05STakashi Sakamoto 6683149ac48STakashi Sakamoto /* 6693149ac48STakashi Sakamoto * NOTE: 6703149ac48STakashi Sakamoto * The firmware customized by M-Audio uses these commands to 6713149ac48STakashi Sakamoto * start transmitting stream. This is not usual way. 6723149ac48STakashi Sakamoto */ 6733149ac48STakashi Sakamoto if (bebob->maudio_special_quirk != NULL) { 6743149ac48STakashi Sakamoto err = rate_spec->set(bebob, rate); 6753149ac48STakashi Sakamoto if (err < 0) { 6763149ac48STakashi Sakamoto dev_err(&bebob->unit->device, 6773149ac48STakashi Sakamoto "fail to ensure sampling rate: %d\n", 6783149ac48STakashi Sakamoto err); 6793149ac48STakashi Sakamoto amdtp_stream_stop(master); 6803149ac48STakashi Sakamoto break_both_connections(bebob); 6813149ac48STakashi Sakamoto goto end; 6823149ac48STakashi Sakamoto } 6833149ac48STakashi Sakamoto } 6843149ac48STakashi Sakamoto 685eb7b3a05STakashi Sakamoto /* wait first callback */ 686eb7b3a05STakashi Sakamoto if (!amdtp_stream_wait_callback(master, CALLBACK_TIMEOUT)) { 687eb7b3a05STakashi Sakamoto amdtp_stream_stop(master); 688eb7b3a05STakashi Sakamoto break_both_connections(bebob); 689eb7b3a05STakashi Sakamoto err = -ETIMEDOUT; 690eb7b3a05STakashi Sakamoto goto end; 691eb7b3a05STakashi Sakamoto } 692eb7b3a05STakashi Sakamoto } 693eb7b3a05STakashi Sakamoto 694eb7b3a05STakashi Sakamoto /* start slave if needed */ 695eb7b3a05STakashi Sakamoto if (atomic_read(slave_substreams) > 0 && !amdtp_stream_running(slave)) { 696eb7b3a05STakashi Sakamoto err = start_stream(bebob, slave, rate); 697eb7b3a05STakashi Sakamoto if (err < 0) { 698eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 699eb7b3a05STakashi Sakamoto "fail to run AMDTP slave stream:%d\n", err); 700eb7b3a05STakashi Sakamoto amdtp_stream_stop(master); 701eb7b3a05STakashi Sakamoto break_both_connections(bebob); 702eb7b3a05STakashi Sakamoto goto end; 703eb7b3a05STakashi Sakamoto } 704eb7b3a05STakashi Sakamoto 705eb7b3a05STakashi Sakamoto /* wait first callback */ 706eb7b3a05STakashi Sakamoto if (!amdtp_stream_wait_callback(slave, CALLBACK_TIMEOUT)) { 707eb7b3a05STakashi Sakamoto amdtp_stream_stop(slave); 708eb7b3a05STakashi Sakamoto amdtp_stream_stop(master); 709eb7b3a05STakashi Sakamoto break_both_connections(bebob); 710eb7b3a05STakashi Sakamoto err = -ETIMEDOUT; 711eb7b3a05STakashi Sakamoto } 712eb7b3a05STakashi Sakamoto } 713eb7b3a05STakashi Sakamoto end: 714eb7b3a05STakashi Sakamoto mutex_unlock(&bebob->mutex); 715eb7b3a05STakashi Sakamoto return err; 716eb7b3a05STakashi Sakamoto } 717eb7b3a05STakashi Sakamoto 718eb7b3a05STakashi Sakamoto void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob) 719eb7b3a05STakashi Sakamoto { 720eb7b3a05STakashi Sakamoto struct amdtp_stream *master, *slave; 721eb7b3a05STakashi Sakamoto atomic_t *master_substreams, *slave_substreams; 722eb7b3a05STakashi Sakamoto 723eb7b3a05STakashi Sakamoto if (bebob->master == &bebob->rx_stream) { 724eb7b3a05STakashi Sakamoto slave = &bebob->tx_stream; 725eb7b3a05STakashi Sakamoto master = &bebob->rx_stream; 726eb7b3a05STakashi Sakamoto slave_substreams = &bebob->capture_substreams; 727eb7b3a05STakashi Sakamoto master_substreams = &bebob->playback_substreams; 728eb7b3a05STakashi Sakamoto } else { 729eb7b3a05STakashi Sakamoto slave = &bebob->rx_stream; 730eb7b3a05STakashi Sakamoto master = &bebob->tx_stream; 731eb7b3a05STakashi Sakamoto slave_substreams = &bebob->playback_substreams; 732eb7b3a05STakashi Sakamoto master_substreams = &bebob->capture_substreams; 733eb7b3a05STakashi Sakamoto } 734eb7b3a05STakashi Sakamoto 735c6e5e741STakashi Sakamoto mutex_lock(&bebob->mutex); 736c6e5e741STakashi Sakamoto 737eb7b3a05STakashi Sakamoto if (atomic_read(slave_substreams) == 0) { 738eb7b3a05STakashi Sakamoto amdtp_stream_pcm_abort(slave); 739eb7b3a05STakashi Sakamoto amdtp_stream_stop(slave); 740eb7b3a05STakashi Sakamoto 741eb7b3a05STakashi Sakamoto if (atomic_read(master_substreams) == 0) { 742eb7b3a05STakashi Sakamoto amdtp_stream_pcm_abort(master); 743eb7b3a05STakashi Sakamoto amdtp_stream_stop(master); 744eb7b3a05STakashi Sakamoto break_both_connections(bebob); 745eb7b3a05STakashi Sakamoto } 746eb7b3a05STakashi Sakamoto } 747eb7b3a05STakashi Sakamoto 748eb7b3a05STakashi Sakamoto mutex_unlock(&bebob->mutex); 749eb7b3a05STakashi Sakamoto } 750eb7b3a05STakashi Sakamoto 751eb7b3a05STakashi Sakamoto void snd_bebob_stream_update_duplex(struct snd_bebob *bebob) 752eb7b3a05STakashi Sakamoto { 753eb7b3a05STakashi Sakamoto /* vs. XRUN recovery due to discontinuity at bus reset */ 754eb7b3a05STakashi Sakamoto mutex_lock(&bebob->mutex); 755eb7b3a05STakashi Sakamoto 756eb7b3a05STakashi Sakamoto if ((cmp_connection_update(&bebob->in_conn) < 0) || 757eb7b3a05STakashi Sakamoto (cmp_connection_update(&bebob->out_conn) < 0)) { 758eb7b3a05STakashi Sakamoto amdtp_stream_pcm_abort(&bebob->rx_stream); 759eb7b3a05STakashi Sakamoto amdtp_stream_pcm_abort(&bebob->tx_stream); 760eb7b3a05STakashi Sakamoto amdtp_stream_stop(&bebob->rx_stream); 761eb7b3a05STakashi Sakamoto amdtp_stream_stop(&bebob->tx_stream); 762eb7b3a05STakashi Sakamoto break_both_connections(bebob); 763eb7b3a05STakashi Sakamoto } else { 764eb7b3a05STakashi Sakamoto amdtp_stream_update(&bebob->rx_stream); 765eb7b3a05STakashi Sakamoto amdtp_stream_update(&bebob->tx_stream); 766eb7b3a05STakashi Sakamoto } 767eb7b3a05STakashi Sakamoto 768b6bc8123STakashi Sakamoto /* wake up stream_start_duplex() */ 769b6bc8123STakashi Sakamoto if (!completion_done(&bebob->bus_reset)) 770b6bc8123STakashi Sakamoto complete_all(&bebob->bus_reset); 771b6bc8123STakashi Sakamoto 772eb7b3a05STakashi Sakamoto mutex_unlock(&bebob->mutex); 773eb7b3a05STakashi Sakamoto } 774eb7b3a05STakashi Sakamoto 775d23c2cc4STakashi Sakamoto /* 776d23c2cc4STakashi Sakamoto * This function should be called before starting streams or after stopping 777d23c2cc4STakashi Sakamoto * streams. 778d23c2cc4STakashi Sakamoto */ 779eb7b3a05STakashi Sakamoto void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob) 780eb7b3a05STakashi Sakamoto { 781eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->rx_stream); 782eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->tx_stream); 783eb7b3a05STakashi Sakamoto 784eb7b3a05STakashi Sakamoto destroy_both_connections(bebob); 785eb7b3a05STakashi Sakamoto } 786eb7b3a05STakashi Sakamoto 787eb7b3a05STakashi Sakamoto /* 788eb7b3a05STakashi Sakamoto * See: Table 50: Extended Stream Format Info Format Hierarchy Level 2’ 789eb7b3a05STakashi Sakamoto * in Additional AVC commands (Nov 2003, BridgeCo) 790eb7b3a05STakashi Sakamoto * Also 'Clause 12 AM824 sequence adaption layers' in IEC 61883-6:2005 791eb7b3a05STakashi Sakamoto */ 792eb7b3a05STakashi Sakamoto static int 793eb7b3a05STakashi Sakamoto parse_stream_formation(u8 *buf, unsigned int len, 794eb7b3a05STakashi Sakamoto struct snd_bebob_stream_formation *formation) 795eb7b3a05STakashi Sakamoto { 796eb7b3a05STakashi Sakamoto unsigned int i, e, channels, format; 797eb7b3a05STakashi Sakamoto 798eb7b3a05STakashi Sakamoto /* 799eb7b3a05STakashi Sakamoto * this module can support a hierarchy combination that: 800eb7b3a05STakashi Sakamoto * Root: Audio and Music (0x90) 801eb7b3a05STakashi Sakamoto * Level 1: AM824 Compound (0x40) 802eb7b3a05STakashi Sakamoto */ 803eb7b3a05STakashi Sakamoto if ((buf[0] != 0x90) || (buf[1] != 0x40)) 804eb7b3a05STakashi Sakamoto return -ENOSYS; 805eb7b3a05STakashi Sakamoto 806eb7b3a05STakashi Sakamoto /* check sampling rate */ 807eb7b3a05STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(bridgeco_freq_table); i++) { 808eb7b3a05STakashi Sakamoto if (buf[2] == bridgeco_freq_table[i]) 809eb7b3a05STakashi Sakamoto break; 810eb7b3a05STakashi Sakamoto } 81133a5f989SDan Carpenter if (i == ARRAY_SIZE(bridgeco_freq_table)) 812eb7b3a05STakashi Sakamoto return -ENOSYS; 813eb7b3a05STakashi Sakamoto 814eb7b3a05STakashi Sakamoto /* Avoid double count by different entries for the same rate. */ 815eb7b3a05STakashi Sakamoto memset(&formation[i], 0, sizeof(struct snd_bebob_stream_formation)); 816eb7b3a05STakashi Sakamoto 817eb7b3a05STakashi Sakamoto for (e = 0; e < buf[4]; e++) { 818eb7b3a05STakashi Sakamoto channels = buf[5 + e * 2]; 819eb7b3a05STakashi Sakamoto format = buf[6 + e * 2]; 820eb7b3a05STakashi Sakamoto 821eb7b3a05STakashi Sakamoto switch (format) { 82251fa31d4STakashi Sakamoto /* IEC 60958 Conformant, currently handled as MBLA */ 823eb7b3a05STakashi Sakamoto case 0x00: 824eb7b3a05STakashi Sakamoto /* Multi bit linear audio */ 825eb7b3a05STakashi Sakamoto case 0x06: /* Raw */ 826eb7b3a05STakashi Sakamoto formation[i].pcm += channels; 827eb7b3a05STakashi Sakamoto break; 828eb7b3a05STakashi Sakamoto /* MIDI Conformant */ 829eb7b3a05STakashi Sakamoto case 0x0d: 830eb7b3a05STakashi Sakamoto formation[i].midi += channels; 831eb7b3a05STakashi Sakamoto break; 832eb7b3a05STakashi Sakamoto /* IEC 61937-3 to 7 */ 833eb7b3a05STakashi Sakamoto case 0x01: 834eb7b3a05STakashi Sakamoto case 0x02: 835eb7b3a05STakashi Sakamoto case 0x03: 836eb7b3a05STakashi Sakamoto case 0x04: 837eb7b3a05STakashi Sakamoto case 0x05: 838eb7b3a05STakashi Sakamoto /* Multi bit linear audio */ 839eb7b3a05STakashi Sakamoto case 0x07: /* DVD-Audio */ 840eb7b3a05STakashi Sakamoto case 0x0c: /* High Precision */ 841eb7b3a05STakashi Sakamoto /* One Bit Audio */ 842eb7b3a05STakashi Sakamoto case 0x08: /* (Plain) Raw */ 843eb7b3a05STakashi Sakamoto case 0x09: /* (Plain) SACD */ 844eb7b3a05STakashi Sakamoto case 0x0a: /* (Encoded) Raw */ 845eb7b3a05STakashi Sakamoto case 0x0b: /* (Encoded) SACD */ 846eb7b3a05STakashi Sakamoto /* Synchronization Stream (Stereo Raw audio) */ 847eb7b3a05STakashi Sakamoto case 0x40: 848eb7b3a05STakashi Sakamoto /* Don't care */ 849eb7b3a05STakashi Sakamoto case 0xff: 850eb7b3a05STakashi Sakamoto default: 851eb7b3a05STakashi Sakamoto return -ENOSYS; /* not supported */ 852eb7b3a05STakashi Sakamoto } 853eb7b3a05STakashi Sakamoto } 854eb7b3a05STakashi Sakamoto 855eb7b3a05STakashi Sakamoto if (formation[i].pcm > AMDTP_MAX_CHANNELS_FOR_PCM || 856eb7b3a05STakashi Sakamoto formation[i].midi > AMDTP_MAX_CHANNELS_FOR_MIDI) 857eb7b3a05STakashi Sakamoto return -ENOSYS; 858eb7b3a05STakashi Sakamoto 859eb7b3a05STakashi Sakamoto return 0; 860eb7b3a05STakashi Sakamoto } 861eb7b3a05STakashi Sakamoto 862eb7b3a05STakashi Sakamoto static int 863eb7b3a05STakashi Sakamoto fill_stream_formations(struct snd_bebob *bebob, enum avc_bridgeco_plug_dir dir, 864eb7b3a05STakashi Sakamoto unsigned short pid) 865eb7b3a05STakashi Sakamoto { 866eb7b3a05STakashi Sakamoto u8 *buf; 867eb7b3a05STakashi Sakamoto struct snd_bebob_stream_formation *formations; 868eb7b3a05STakashi Sakamoto unsigned int len, eid; 869eb7b3a05STakashi Sakamoto u8 addr[AVC_BRIDGECO_ADDR_BYTES]; 870eb7b3a05STakashi Sakamoto int err; 871eb7b3a05STakashi Sakamoto 872eb7b3a05STakashi Sakamoto buf = kmalloc(FORMAT_MAXIMUM_LENGTH, GFP_KERNEL); 873eb7b3a05STakashi Sakamoto if (buf == NULL) 874eb7b3a05STakashi Sakamoto return -ENOMEM; 875eb7b3a05STakashi Sakamoto 876eb7b3a05STakashi Sakamoto if (dir == AVC_BRIDGECO_PLUG_DIR_IN) 877eb7b3a05STakashi Sakamoto formations = bebob->rx_stream_formations; 878eb7b3a05STakashi Sakamoto else 879eb7b3a05STakashi Sakamoto formations = bebob->tx_stream_formations; 880eb7b3a05STakashi Sakamoto 881eb7b3a05STakashi Sakamoto for (eid = 0; eid < SND_BEBOB_STRM_FMT_ENTRIES; eid++) { 882eb7b3a05STakashi Sakamoto len = FORMAT_MAXIMUM_LENGTH; 883eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, dir, 884eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, pid); 885eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_strm_fmt(bebob->unit, addr, buf, 886eb7b3a05STakashi Sakamoto &len, eid); 887eb7b3a05STakashi Sakamoto /* No entries remained. */ 888eb7b3a05STakashi Sakamoto if (err == -EINVAL && eid > 0) { 889eb7b3a05STakashi Sakamoto err = 0; 890eb7b3a05STakashi Sakamoto break; 891eb7b3a05STakashi Sakamoto } else if (err < 0) { 892eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 893eb7b3a05STakashi Sakamoto "fail to get stream format %d for isoc %s plug %d:%d\n", 894eb7b3a05STakashi Sakamoto eid, 895eb7b3a05STakashi Sakamoto (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : 896eb7b3a05STakashi Sakamoto "out", 897eb7b3a05STakashi Sakamoto pid, err); 898eb7b3a05STakashi Sakamoto break; 899eb7b3a05STakashi Sakamoto } 900eb7b3a05STakashi Sakamoto 901eb7b3a05STakashi Sakamoto err = parse_stream_formation(buf, len, formations); 902eb7b3a05STakashi Sakamoto if (err < 0) 903eb7b3a05STakashi Sakamoto break; 904eb7b3a05STakashi Sakamoto } 905eb7b3a05STakashi Sakamoto 906eb7b3a05STakashi Sakamoto kfree(buf); 907eb7b3a05STakashi Sakamoto return err; 908eb7b3a05STakashi Sakamoto } 909eb7b3a05STakashi Sakamoto 910eb7b3a05STakashi Sakamoto static int 911eb7b3a05STakashi Sakamoto seek_msu_sync_input_plug(struct snd_bebob *bebob) 912eb7b3a05STakashi Sakamoto { 913eb7b3a05STakashi Sakamoto u8 plugs[AVC_PLUG_INFO_BUF_BYTES], addr[AVC_BRIDGECO_ADDR_BYTES]; 914a6b598bfSTakashi Sakamoto unsigned int i; 915a6b598bfSTakashi Sakamoto enum avc_bridgeco_plug_type type; 916eb7b3a05STakashi Sakamoto int err; 917eb7b3a05STakashi Sakamoto 918eb7b3a05STakashi Sakamoto /* Get the number of Music Sub Unit for both direction. */ 919eb7b3a05STakashi Sakamoto err = avc_general_get_plug_info(bebob->unit, 0x0c, 0x00, 0x00, plugs); 920eb7b3a05STakashi Sakamoto if (err < 0) { 921eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 922eb7b3a05STakashi Sakamoto "fail to get info for MSU in/out plugs: %d\n", 923eb7b3a05STakashi Sakamoto err); 924eb7b3a05STakashi Sakamoto goto end; 925eb7b3a05STakashi Sakamoto } 926eb7b3a05STakashi Sakamoto 927eb7b3a05STakashi Sakamoto /* seek destination plugs for 'MSU sync input' */ 928eb7b3a05STakashi Sakamoto bebob->sync_input_plug = -1; 929eb7b3a05STakashi Sakamoto for (i = 0; i < plugs[0]; i++) { 930eb7b3a05STakashi Sakamoto avc_bridgeco_fill_msu_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, i); 931eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 932eb7b3a05STakashi Sakamoto if (err < 0) { 933eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 934eb7b3a05STakashi Sakamoto "fail to get type for MSU in plug %d: %d\n", 935eb7b3a05STakashi Sakamoto i, err); 936eb7b3a05STakashi Sakamoto goto end; 937eb7b3a05STakashi Sakamoto } 938eb7b3a05STakashi Sakamoto 939eb7b3a05STakashi Sakamoto if (type == AVC_BRIDGECO_PLUG_TYPE_SYNC) { 940eb7b3a05STakashi Sakamoto bebob->sync_input_plug = i; 941eb7b3a05STakashi Sakamoto break; 942eb7b3a05STakashi Sakamoto } 943eb7b3a05STakashi Sakamoto } 944eb7b3a05STakashi Sakamoto end: 945eb7b3a05STakashi Sakamoto return err; 946eb7b3a05STakashi Sakamoto } 947eb7b3a05STakashi Sakamoto 948eb7b3a05STakashi Sakamoto int snd_bebob_stream_discover(struct snd_bebob *bebob) 949eb7b3a05STakashi Sakamoto { 9501fc9522aSTakashi Sakamoto struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock; 951eb7b3a05STakashi Sakamoto u8 plugs[AVC_PLUG_INFO_BUF_BYTES], addr[AVC_BRIDGECO_ADDR_BYTES]; 952eb7b3a05STakashi Sakamoto enum avc_bridgeco_plug_type type; 953eb7b3a05STakashi Sakamoto unsigned int i; 954eb7b3a05STakashi Sakamoto int err; 955eb7b3a05STakashi Sakamoto 956eb7b3a05STakashi Sakamoto /* the number of plugs for isoc in/out, ext in/out */ 957eb7b3a05STakashi Sakamoto err = avc_general_get_plug_info(bebob->unit, 0x1f, 0x07, 0x00, plugs); 958eb7b3a05STakashi Sakamoto if (err < 0) { 959eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 960eb7b3a05STakashi Sakamoto "fail to get info for isoc/external in/out plugs: %d\n", 961eb7b3a05STakashi Sakamoto err); 962eb7b3a05STakashi Sakamoto goto end; 963eb7b3a05STakashi Sakamoto } 964eb7b3a05STakashi Sakamoto 965eb7b3a05STakashi Sakamoto /* 966eb7b3a05STakashi Sakamoto * This module supports at least one isoc input plug and one isoc 967eb7b3a05STakashi Sakamoto * output plug. 968eb7b3a05STakashi Sakamoto */ 969eb7b3a05STakashi Sakamoto if ((plugs[0] == 0) || (plugs[1] == 0)) { 970eb7b3a05STakashi Sakamoto err = -ENOSYS; 971eb7b3a05STakashi Sakamoto goto end; 972eb7b3a05STakashi Sakamoto } 973eb7b3a05STakashi Sakamoto 974eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, 975eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 976eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 977eb7b3a05STakashi Sakamoto if (err < 0) { 978eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 979eb7b3a05STakashi Sakamoto "fail to get type for isoc in plug 0: %d\n", err); 980eb7b3a05STakashi Sakamoto goto end; 981eb7b3a05STakashi Sakamoto } else if (type != AVC_BRIDGECO_PLUG_TYPE_ISOC) { 982eb7b3a05STakashi Sakamoto err = -ENOSYS; 983eb7b3a05STakashi Sakamoto goto end; 984eb7b3a05STakashi Sakamoto } 985eb7b3a05STakashi Sakamoto err = fill_stream_formations(bebob, AVC_BRIDGECO_PLUG_DIR_IN, 0); 986eb7b3a05STakashi Sakamoto if (err < 0) 987eb7b3a05STakashi Sakamoto goto end; 988eb7b3a05STakashi Sakamoto 989eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_OUT, 990eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 991eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 992eb7b3a05STakashi Sakamoto if (err < 0) { 993eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 994eb7b3a05STakashi Sakamoto "fail to get type for isoc out plug 0: %d\n", err); 995eb7b3a05STakashi Sakamoto goto end; 996eb7b3a05STakashi Sakamoto } else if (type != AVC_BRIDGECO_PLUG_TYPE_ISOC) { 997eb7b3a05STakashi Sakamoto err = -ENOSYS; 998eb7b3a05STakashi Sakamoto goto end; 999eb7b3a05STakashi Sakamoto } 1000eb7b3a05STakashi Sakamoto err = fill_stream_formations(bebob, AVC_BRIDGECO_PLUG_DIR_OUT, 0); 1001eb7b3a05STakashi Sakamoto if (err < 0) 1002eb7b3a05STakashi Sakamoto goto end; 1003eb7b3a05STakashi Sakamoto 1004eb7b3a05STakashi Sakamoto /* count external input plugs for MIDI */ 1005eb7b3a05STakashi Sakamoto bebob->midi_input_ports = 0; 1006eb7b3a05STakashi Sakamoto for (i = 0; i < plugs[2]; i++) { 1007eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, 1008eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_EXT, i); 1009eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 1010eb7b3a05STakashi Sakamoto if (err < 0) { 1011eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 1012eb7b3a05STakashi Sakamoto "fail to get type for external in plug %d: %d\n", 1013eb7b3a05STakashi Sakamoto i, err); 1014eb7b3a05STakashi Sakamoto goto end; 1015eb7b3a05STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI) { 1016eb7b3a05STakashi Sakamoto bebob->midi_input_ports++; 1017eb7b3a05STakashi Sakamoto } 1018eb7b3a05STakashi Sakamoto } 1019eb7b3a05STakashi Sakamoto 1020eb7b3a05STakashi Sakamoto /* count external output plugs for MIDI */ 1021eb7b3a05STakashi Sakamoto bebob->midi_output_ports = 0; 1022eb7b3a05STakashi Sakamoto for (i = 0; i < plugs[3]; i++) { 1023eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_OUT, 1024eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_EXT, i); 1025eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 1026eb7b3a05STakashi Sakamoto if (err < 0) { 1027eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 1028eb7b3a05STakashi Sakamoto "fail to get type for external out plug %d: %d\n", 1029eb7b3a05STakashi Sakamoto i, err); 1030eb7b3a05STakashi Sakamoto goto end; 1031eb7b3a05STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI) { 1032eb7b3a05STakashi Sakamoto bebob->midi_output_ports++; 1033eb7b3a05STakashi Sakamoto } 1034eb7b3a05STakashi Sakamoto } 1035eb7b3a05STakashi Sakamoto 1036eb7b3a05STakashi Sakamoto /* for check source of clock later */ 10371fc9522aSTakashi Sakamoto if (!clk_spec) 1038eb7b3a05STakashi Sakamoto err = seek_msu_sync_input_plug(bebob); 1039eb7b3a05STakashi Sakamoto end: 1040eb7b3a05STakashi Sakamoto return err; 1041eb7b3a05STakashi Sakamoto } 1042618eabeaSTakashi Sakamoto 1043618eabeaSTakashi Sakamoto void snd_bebob_stream_lock_changed(struct snd_bebob *bebob) 1044618eabeaSTakashi Sakamoto { 1045618eabeaSTakashi Sakamoto bebob->dev_lock_changed = true; 1046618eabeaSTakashi Sakamoto wake_up(&bebob->hwdep_wait); 1047618eabeaSTakashi Sakamoto } 1048618eabeaSTakashi Sakamoto 1049618eabeaSTakashi Sakamoto int snd_bebob_stream_lock_try(struct snd_bebob *bebob) 1050618eabeaSTakashi Sakamoto { 1051618eabeaSTakashi Sakamoto int err; 1052618eabeaSTakashi Sakamoto 1053618eabeaSTakashi Sakamoto spin_lock_irq(&bebob->lock); 1054618eabeaSTakashi Sakamoto 1055618eabeaSTakashi Sakamoto /* user land lock this */ 1056618eabeaSTakashi Sakamoto if (bebob->dev_lock_count < 0) { 1057618eabeaSTakashi Sakamoto err = -EBUSY; 1058618eabeaSTakashi Sakamoto goto end; 1059618eabeaSTakashi Sakamoto } 1060618eabeaSTakashi Sakamoto 1061618eabeaSTakashi Sakamoto /* this is the first time */ 1062618eabeaSTakashi Sakamoto if (bebob->dev_lock_count++ == 0) 1063618eabeaSTakashi Sakamoto snd_bebob_stream_lock_changed(bebob); 1064618eabeaSTakashi Sakamoto err = 0; 1065618eabeaSTakashi Sakamoto end: 1066618eabeaSTakashi Sakamoto spin_unlock_irq(&bebob->lock); 1067618eabeaSTakashi Sakamoto return err; 1068618eabeaSTakashi Sakamoto } 1069618eabeaSTakashi Sakamoto 1070618eabeaSTakashi Sakamoto void snd_bebob_stream_lock_release(struct snd_bebob *bebob) 1071618eabeaSTakashi Sakamoto { 1072618eabeaSTakashi Sakamoto spin_lock_irq(&bebob->lock); 1073618eabeaSTakashi Sakamoto 1074618eabeaSTakashi Sakamoto if (WARN_ON(bebob->dev_lock_count <= 0)) 1075618eabeaSTakashi Sakamoto goto end; 1076618eabeaSTakashi Sakamoto if (--bebob->dev_lock_count == 0) 1077618eabeaSTakashi Sakamoto snd_bebob_stream_lock_changed(bebob); 1078618eabeaSTakashi Sakamoto end: 1079618eabeaSTakashi Sakamoto spin_unlock_irq(&bebob->lock); 1080618eabeaSTakashi Sakamoto } 1081