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 5007905298SLucas Tanure static int 5107905298SLucas Tanure get_formation_index(unsigned int rate, unsigned int *index) 52eb7b3a05STakashi Sakamoto { 53eb7b3a05STakashi Sakamoto unsigned int i; 54eb7b3a05STakashi Sakamoto 55eb7b3a05STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(snd_bebob_rate_table); i++) { 5607905298SLucas Tanure if (snd_bebob_rate_table[i] == rate) { 5707905298SLucas Tanure *index = i; 5807905298SLucas Tanure return 0; 5907905298SLucas Tanure } 60eb7b3a05STakashi Sakamoto } 61eb7b3a05STakashi Sakamoto return -EINVAL; 62eb7b3a05STakashi Sakamoto } 63eb7b3a05STakashi Sakamoto 64eb7b3a05STakashi Sakamoto int 65eb7b3a05STakashi Sakamoto snd_bebob_stream_get_rate(struct snd_bebob *bebob, unsigned int *curr_rate) 66eb7b3a05STakashi Sakamoto { 67eb7b3a05STakashi Sakamoto unsigned int tx_rate, rx_rate, trials; 68eb7b3a05STakashi Sakamoto int err; 69eb7b3a05STakashi Sakamoto 70eb7b3a05STakashi Sakamoto trials = 0; 71eb7b3a05STakashi Sakamoto do { 72eb7b3a05STakashi Sakamoto err = avc_general_get_sig_fmt(bebob->unit, &tx_rate, 73eb7b3a05STakashi Sakamoto AVC_GENERAL_PLUG_DIR_OUT, 0); 74eb7b3a05STakashi Sakamoto } while (err == -EAGAIN && ++trials < 3); 75eb7b3a05STakashi Sakamoto if (err < 0) 76eb7b3a05STakashi Sakamoto goto end; 77eb7b3a05STakashi Sakamoto 78eb7b3a05STakashi Sakamoto trials = 0; 79eb7b3a05STakashi Sakamoto do { 80eb7b3a05STakashi Sakamoto err = avc_general_get_sig_fmt(bebob->unit, &rx_rate, 81eb7b3a05STakashi Sakamoto AVC_GENERAL_PLUG_DIR_IN, 0); 82eb7b3a05STakashi Sakamoto } while (err == -EAGAIN && ++trials < 3); 83eb7b3a05STakashi Sakamoto if (err < 0) 84eb7b3a05STakashi Sakamoto goto end; 85eb7b3a05STakashi Sakamoto 86eb7b3a05STakashi Sakamoto *curr_rate = rx_rate; 87eb7b3a05STakashi Sakamoto if (rx_rate == tx_rate) 88eb7b3a05STakashi Sakamoto goto end; 89eb7b3a05STakashi Sakamoto 90eb7b3a05STakashi Sakamoto /* synchronize receive stream rate to transmit stream rate */ 91eb7b3a05STakashi Sakamoto err = avc_general_set_sig_fmt(bebob->unit, rx_rate, 92eb7b3a05STakashi Sakamoto AVC_GENERAL_PLUG_DIR_IN, 0); 93eb7b3a05STakashi Sakamoto end: 94eb7b3a05STakashi Sakamoto return err; 95eb7b3a05STakashi Sakamoto } 96eb7b3a05STakashi Sakamoto 97eb7b3a05STakashi Sakamoto int 98eb7b3a05STakashi Sakamoto snd_bebob_stream_set_rate(struct snd_bebob *bebob, unsigned int rate) 99eb7b3a05STakashi Sakamoto { 100eb7b3a05STakashi Sakamoto int err; 101eb7b3a05STakashi Sakamoto 102eb7b3a05STakashi Sakamoto err = avc_general_set_sig_fmt(bebob->unit, rate, 103eb7b3a05STakashi Sakamoto AVC_GENERAL_PLUG_DIR_OUT, 0); 104eb7b3a05STakashi Sakamoto if (err < 0) 105eb7b3a05STakashi Sakamoto goto end; 106eb7b3a05STakashi Sakamoto 107eb7b3a05STakashi Sakamoto err = avc_general_set_sig_fmt(bebob->unit, rate, 108eb7b3a05STakashi Sakamoto AVC_GENERAL_PLUG_DIR_IN, 0); 109eb7b3a05STakashi Sakamoto if (err < 0) 110eb7b3a05STakashi Sakamoto goto end; 111eb7b3a05STakashi Sakamoto 112eb7b3a05STakashi Sakamoto /* 113eb7b3a05STakashi Sakamoto * Some devices need a bit time for transition. 114eb7b3a05STakashi Sakamoto * 300msec is got by some experiments. 115eb7b3a05STakashi Sakamoto */ 116eb7b3a05STakashi Sakamoto msleep(300); 117eb7b3a05STakashi Sakamoto end: 118eb7b3a05STakashi Sakamoto return err; 119eb7b3a05STakashi Sakamoto } 120eb7b3a05STakashi Sakamoto 1213e254b16STakashi Sakamoto int snd_bebob_stream_get_clock_src(struct snd_bebob *bebob, 1223e254b16STakashi Sakamoto enum snd_bebob_clock_type *src) 123eb7b3a05STakashi Sakamoto { 1246b9866c8SJulia Lawall const struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock; 125eb7b3a05STakashi Sakamoto u8 addr[AVC_BRIDGECO_ADDR_BYTES], input[7]; 1261fc9522aSTakashi Sakamoto unsigned int id; 1275a668812STakashi Sakamoto enum avc_bridgeco_plug_type type; 128eb7b3a05STakashi Sakamoto int err = 0; 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 1473e254b16STakashi Sakamoto *src = clk_spec->types[id]; 1481fc9522aSTakashi Sakamoto goto end; 1491fc9522aSTakashi Sakamoto } 1501fc9522aSTakashi Sakamoto 151eb7b3a05STakashi Sakamoto /* 1521fc9522aSTakashi Sakamoto * 2.The device don't support to switch source of clock then assumed 153eb7b3a05STakashi Sakamoto * to use internal clock always 154eb7b3a05STakashi Sakamoto */ 155eb7b3a05STakashi Sakamoto if (bebob->sync_input_plug < 0) { 1563e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_INTERNAL; 157eb7b3a05STakashi Sakamoto goto end; 158eb7b3a05STakashi Sakamoto } 159eb7b3a05STakashi Sakamoto 160eb7b3a05STakashi Sakamoto /* 1611fc9522aSTakashi Sakamoto * 3.The device supports to switch source of clock by an usual way. 162eb7b3a05STakashi Sakamoto * Let's check input for 'Music Sub Unit Sync Input' plug. 163eb7b3a05STakashi Sakamoto */ 164eb7b3a05STakashi Sakamoto avc_bridgeco_fill_msu_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, 165eb7b3a05STakashi Sakamoto bebob->sync_input_plug); 166eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_input(bebob->unit, addr, input); 167eb7b3a05STakashi Sakamoto if (err < 0) { 168eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 169eb7b3a05STakashi Sakamoto "fail to get an input for MSU in plug %d: %d\n", 170eb7b3a05STakashi Sakamoto bebob->sync_input_plug, err); 171eb7b3a05STakashi Sakamoto goto end; 172eb7b3a05STakashi Sakamoto } 173eb7b3a05STakashi Sakamoto 174eb7b3a05STakashi Sakamoto /* 175eb7b3a05STakashi Sakamoto * If there are no input plugs, all of fields are 0xff. 176eb7b3a05STakashi Sakamoto * Here check the first field. This field is used for direction. 177eb7b3a05STakashi Sakamoto */ 178eb7b3a05STakashi Sakamoto if (input[0] == 0xff) { 1793e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_INTERNAL; 180eb7b3a05STakashi Sakamoto goto end; 181eb7b3a05STakashi Sakamoto } 182eb7b3a05STakashi Sakamoto 1835a668812STakashi Sakamoto /* The source from any output plugs is for one purpose only. */ 1845a668812STakashi Sakamoto if (input[0] == AVC_BRIDGECO_PLUG_DIR_OUT) { 185eb7b3a05STakashi Sakamoto /* 1865a668812STakashi Sakamoto * In BeBoB architecture, the source from music subunit may 1875a668812STakashi Sakamoto * bypass from oPCR[0]. This means that this source gives 1885a668812STakashi Sakamoto * synchronization to IEEE 1394 cycle start packet. 189eb7b3a05STakashi Sakamoto */ 1905a668812STakashi Sakamoto if (input[1] == AVC_BRIDGECO_PLUG_MODE_SUBUNIT && 1915a668812STakashi Sakamoto input[2] == 0x0c) { 1923e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_INTERNAL; 1935a668812STakashi Sakamoto goto end; 1945a668812STakashi Sakamoto } 1955a668812STakashi Sakamoto /* The source from any input units is for several purposes. */ 1965a668812STakashi Sakamoto } else if (input[1] == AVC_BRIDGECO_PLUG_MODE_UNIT) { 1975a668812STakashi Sakamoto if (input[2] == AVC_BRIDGECO_PLUG_UNIT_ISOC) { 1985a668812STakashi Sakamoto if (input[3] == 0x00) { 1995a668812STakashi Sakamoto /* 2005a668812STakashi Sakamoto * This source comes from iPCR[0]. This means 2015a668812STakashi Sakamoto * that presentation timestamp calculated by 2025a668812STakashi Sakamoto * SYT series of the received packets. In 2035a668812STakashi Sakamoto * short, this driver is the master of 2045a668812STakashi Sakamoto * synchronization. 2055a668812STakashi Sakamoto */ 2063e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_SYT; 2075a668812STakashi Sakamoto goto end; 2085a668812STakashi Sakamoto } else { 2095a668812STakashi Sakamoto /* 2105a668812STakashi Sakamoto * This source comes from iPCR[1-29]. This 2115a668812STakashi Sakamoto * means that the synchronization stream is not 2125a668812STakashi Sakamoto * the Audio/MIDI compound stream. 2135a668812STakashi Sakamoto */ 2143e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_EXTERNAL; 2155a668812STakashi Sakamoto goto end; 2165a668812STakashi Sakamoto } 2175a668812STakashi Sakamoto } else if (input[2] == AVC_BRIDGECO_PLUG_UNIT_EXT) { 2185a668812STakashi Sakamoto /* Check type of this plug. */ 2195a668812STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, 2205a668812STakashi Sakamoto AVC_BRIDGECO_PLUG_DIR_IN, 2215a668812STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_EXT, 2225a668812STakashi Sakamoto input[3]); 2235a668812STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, 2245a668812STakashi Sakamoto &type); 2255a668812STakashi Sakamoto if (err < 0) 2265a668812STakashi Sakamoto goto end; 2275a668812STakashi Sakamoto 2285a668812STakashi Sakamoto if (type == AVC_BRIDGECO_PLUG_TYPE_DIG) { 2295a668812STakashi Sakamoto /* 2305a668812STakashi Sakamoto * SPDIF/ADAT or sometimes (not always) word 2315a668812STakashi Sakamoto * clock. 2325a668812STakashi Sakamoto */ 2333e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_EXTERNAL; 2345a668812STakashi Sakamoto goto end; 2355a668812STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_SYNC) { 2365a668812STakashi Sakamoto /* Often word clock. */ 2373e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_EXTERNAL; 2385a668812STakashi Sakamoto goto end; 2395a668812STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_ADDITION) { 2405a668812STakashi Sakamoto /* 2415a668812STakashi Sakamoto * Not standard. 2425a668812STakashi Sakamoto * Mostly, additional internal clock. 2435a668812STakashi Sakamoto */ 2443e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_INTERNAL; 2455a668812STakashi Sakamoto goto end; 2465a668812STakashi Sakamoto } 2475a668812STakashi Sakamoto } 2485a668812STakashi Sakamoto } 2495a668812STakashi Sakamoto 2505a668812STakashi Sakamoto /* Not supported. */ 2515a668812STakashi Sakamoto err = -EIO; 252eb7b3a05STakashi Sakamoto end: 253eb7b3a05STakashi Sakamoto return err; 254eb7b3a05STakashi Sakamoto } 255eb7b3a05STakashi Sakamoto 256eb7b3a05STakashi Sakamoto static unsigned int 257eb7b3a05STakashi Sakamoto map_data_channels(struct snd_bebob *bebob, struct amdtp_stream *s) 258eb7b3a05STakashi Sakamoto { 259eb7b3a05STakashi Sakamoto unsigned int sec, sections, ch, channels; 260eb7b3a05STakashi Sakamoto unsigned int pcm, midi, location; 261eb7b3a05STakashi Sakamoto unsigned int stm_pos, sec_loc, pos; 262eb7b3a05STakashi Sakamoto u8 *buf, addr[AVC_BRIDGECO_ADDR_BYTES], type; 263eb7b3a05STakashi Sakamoto enum avc_bridgeco_plug_dir dir; 264eb7b3a05STakashi Sakamoto int err; 265eb7b3a05STakashi Sakamoto 266eb7b3a05STakashi Sakamoto /* 267eb7b3a05STakashi Sakamoto * The length of return value of this command cannot be expected. Here 268eb7b3a05STakashi Sakamoto * use the maximum length of FCP. 269eb7b3a05STakashi Sakamoto */ 270eb7b3a05STakashi Sakamoto buf = kzalloc(256, GFP_KERNEL); 271eb7b3a05STakashi Sakamoto if (buf == NULL) 272eb7b3a05STakashi Sakamoto return -ENOMEM; 273eb7b3a05STakashi Sakamoto 274eb7b3a05STakashi Sakamoto if (s == &bebob->tx_stream) 275eb7b3a05STakashi Sakamoto dir = AVC_BRIDGECO_PLUG_DIR_OUT; 276eb7b3a05STakashi Sakamoto else 277eb7b3a05STakashi Sakamoto dir = AVC_BRIDGECO_PLUG_DIR_IN; 278eb7b3a05STakashi Sakamoto 279eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, dir, AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 280eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_ch_pos(bebob->unit, addr, buf, 256); 281eb7b3a05STakashi Sakamoto if (err < 0) { 282eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 283eb7b3a05STakashi Sakamoto "fail to get channel position for isoc %s plug 0: %d\n", 284eb7b3a05STakashi Sakamoto (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : "out", 285eb7b3a05STakashi Sakamoto err); 286eb7b3a05STakashi Sakamoto goto end; 287eb7b3a05STakashi Sakamoto } 288eb7b3a05STakashi Sakamoto pos = 0; 289eb7b3a05STakashi Sakamoto 290eb7b3a05STakashi Sakamoto /* positions in I/O buffer */ 291eb7b3a05STakashi Sakamoto pcm = 0; 292eb7b3a05STakashi Sakamoto midi = 0; 293eb7b3a05STakashi Sakamoto 294eb7b3a05STakashi Sakamoto /* the number of sections in AMDTP packet */ 295eb7b3a05STakashi Sakamoto sections = buf[pos++]; 296eb7b3a05STakashi Sakamoto 297eb7b3a05STakashi Sakamoto for (sec = 0; sec < sections; sec++) { 298eb7b3a05STakashi Sakamoto /* type of this section */ 299eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, dir, 300eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 301eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_section_type(bebob->unit, addr, 302eb7b3a05STakashi Sakamoto sec, &type); 303eb7b3a05STakashi Sakamoto if (err < 0) { 304eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 305eb7b3a05STakashi Sakamoto "fail to get section type for isoc %s plug 0: %d\n", 306eb7b3a05STakashi Sakamoto (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : 307eb7b3a05STakashi Sakamoto "out", 308eb7b3a05STakashi Sakamoto err); 309eb7b3a05STakashi Sakamoto goto end; 310eb7b3a05STakashi Sakamoto } 311eb7b3a05STakashi Sakamoto /* NoType */ 312eb7b3a05STakashi Sakamoto if (type == 0xff) { 313eb7b3a05STakashi Sakamoto err = -ENOSYS; 314eb7b3a05STakashi Sakamoto goto end; 315eb7b3a05STakashi Sakamoto } 316eb7b3a05STakashi Sakamoto 317eb7b3a05STakashi Sakamoto /* the number of channels in this section */ 318eb7b3a05STakashi Sakamoto channels = buf[pos++]; 319eb7b3a05STakashi Sakamoto 320eb7b3a05STakashi Sakamoto for (ch = 0; ch < channels; ch++) { 321eb7b3a05STakashi Sakamoto /* position of this channel in AMDTP packet */ 322eb7b3a05STakashi Sakamoto stm_pos = buf[pos++] - 1; 323eb7b3a05STakashi Sakamoto /* location of this channel in this section */ 324eb7b3a05STakashi Sakamoto sec_loc = buf[pos++] - 1; 325eb7b3a05STakashi Sakamoto 3269076c22dSTakashi Sakamoto /* 3279076c22dSTakashi Sakamoto * Basically the number of location is within the 3289076c22dSTakashi Sakamoto * number of channels in this section. But some models 3299076c22dSTakashi Sakamoto * of M-Audio don't follow this. Its location for MIDI 3309076c22dSTakashi Sakamoto * is the position of MIDI channels in AMDTP packet. 3319076c22dSTakashi Sakamoto */ 3329076c22dSTakashi Sakamoto if (sec_loc >= channels) 3339076c22dSTakashi Sakamoto sec_loc = ch; 3349076c22dSTakashi Sakamoto 335eb7b3a05STakashi Sakamoto switch (type) { 336eb7b3a05STakashi Sakamoto /* for MIDI conformant data channel */ 337eb7b3a05STakashi Sakamoto case 0x0a: 338eb7b3a05STakashi Sakamoto /* AMDTP_MAX_CHANNELS_FOR_MIDI is 1. */ 339eb7b3a05STakashi Sakamoto if ((midi > 0) && (stm_pos != midi)) { 340eb7b3a05STakashi Sakamoto err = -ENOSYS; 341eb7b3a05STakashi Sakamoto goto end; 342eb7b3a05STakashi Sakamoto } 343f65be911STakashi Sakamoto amdtp_am824_set_midi_position(s, stm_pos); 344eb7b3a05STakashi Sakamoto midi = stm_pos; 345eb7b3a05STakashi Sakamoto break; 346eb7b3a05STakashi Sakamoto /* for PCM data channel */ 347eb7b3a05STakashi Sakamoto case 0x01: /* Headphone */ 348eb7b3a05STakashi Sakamoto case 0x02: /* Microphone */ 349eb7b3a05STakashi Sakamoto case 0x03: /* Line */ 350eb7b3a05STakashi Sakamoto case 0x04: /* SPDIF */ 351eb7b3a05STakashi Sakamoto case 0x05: /* ADAT */ 352eb7b3a05STakashi Sakamoto case 0x06: /* TDIF */ 353eb7b3a05STakashi Sakamoto case 0x07: /* MADI */ 354eb7b3a05STakashi Sakamoto /* for undefined/changeable signal */ 355eb7b3a05STakashi Sakamoto case 0x08: /* Analog */ 356eb7b3a05STakashi Sakamoto case 0x09: /* Digital */ 357eb7b3a05STakashi Sakamoto default: 358eb7b3a05STakashi Sakamoto location = pcm + sec_loc; 35949c7b3fcSTakashi Sakamoto if (location >= AM824_MAX_CHANNELS_FOR_PCM) { 360eb7b3a05STakashi Sakamoto err = -ENOSYS; 361eb7b3a05STakashi Sakamoto goto end; 362eb7b3a05STakashi Sakamoto } 363f65be911STakashi Sakamoto amdtp_am824_set_pcm_position(s, location, 364f65be911STakashi Sakamoto stm_pos); 365eb7b3a05STakashi Sakamoto break; 366eb7b3a05STakashi Sakamoto } 367eb7b3a05STakashi Sakamoto } 368eb7b3a05STakashi Sakamoto 369eb7b3a05STakashi Sakamoto if (type != 0x0a) 370eb7b3a05STakashi Sakamoto pcm += channels; 371eb7b3a05STakashi Sakamoto else 372eb7b3a05STakashi Sakamoto midi += channels; 373eb7b3a05STakashi Sakamoto } 374eb7b3a05STakashi Sakamoto end: 375eb7b3a05STakashi Sakamoto kfree(buf); 376eb7b3a05STakashi Sakamoto return err; 377eb7b3a05STakashi Sakamoto } 378eb7b3a05STakashi Sakamoto 379eb7b3a05STakashi Sakamoto static int 380eb7b3a05STakashi Sakamoto check_connection_used_by_others(struct snd_bebob *bebob, struct amdtp_stream *s) 381eb7b3a05STakashi Sakamoto { 382eb7b3a05STakashi Sakamoto struct cmp_connection *conn; 383eb7b3a05STakashi Sakamoto bool used; 384eb7b3a05STakashi Sakamoto int err; 385eb7b3a05STakashi Sakamoto 386eb7b3a05STakashi Sakamoto if (s == &bebob->tx_stream) 387eb7b3a05STakashi Sakamoto conn = &bebob->out_conn; 388eb7b3a05STakashi Sakamoto else 389eb7b3a05STakashi Sakamoto conn = &bebob->in_conn; 390eb7b3a05STakashi Sakamoto 391eb7b3a05STakashi Sakamoto err = cmp_connection_check_used(conn, &used); 392eb7b3a05STakashi Sakamoto if ((err >= 0) && used && !amdtp_stream_running(s)) { 393eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 394eb7b3a05STakashi Sakamoto "Connection established by others: %cPCR[%d]\n", 395eb7b3a05STakashi Sakamoto (conn->direction == CMP_OUTPUT) ? 'o' : 'i', 396eb7b3a05STakashi Sakamoto conn->pcr_index); 397eb7b3a05STakashi Sakamoto err = -EBUSY; 398eb7b3a05STakashi Sakamoto } 399eb7b3a05STakashi Sakamoto 400eb7b3a05STakashi Sakamoto return err; 401eb7b3a05STakashi Sakamoto } 402eb7b3a05STakashi Sakamoto 403ac2888b9STakashi Sakamoto static int make_both_connections(struct snd_bebob *bebob) 404eb7b3a05STakashi Sakamoto { 405ac2888b9STakashi Sakamoto int err = 0; 406b6bc8123STakashi Sakamoto 407eb7b3a05STakashi Sakamoto err = cmp_connection_establish(&bebob->out_conn, 408eb7b3a05STakashi Sakamoto amdtp_stream_get_max_payload(&bebob->tx_stream)); 409eb7b3a05STakashi Sakamoto if (err < 0) 410ac2888b9STakashi Sakamoto return err; 411ac2888b9STakashi Sakamoto 412eb7b3a05STakashi Sakamoto err = cmp_connection_establish(&bebob->in_conn, 413eb7b3a05STakashi Sakamoto amdtp_stream_get_max_payload(&bebob->rx_stream)); 414b6bc8123STakashi Sakamoto if (err < 0) { 415eb7b3a05STakashi Sakamoto cmp_connection_break(&bebob->out_conn); 416ac2888b9STakashi Sakamoto return err; 417b6bc8123STakashi Sakamoto } 418b6bc8123STakashi Sakamoto 419ac2888b9STakashi Sakamoto return 0; 420eb7b3a05STakashi Sakamoto } 421eb7b3a05STakashi Sakamoto 422eb7b3a05STakashi Sakamoto static void 423eb7b3a05STakashi Sakamoto break_both_connections(struct snd_bebob *bebob) 424eb7b3a05STakashi Sakamoto { 425eb7b3a05STakashi Sakamoto cmp_connection_break(&bebob->in_conn); 426eb7b3a05STakashi Sakamoto cmp_connection_break(&bebob->out_conn); 427b6bc8123STakashi Sakamoto 4283149ac48STakashi Sakamoto /* These models seems to be in transition state for a longer time. */ 4293149ac48STakashi Sakamoto if (bebob->maudio_special_quirk != NULL) 4303149ac48STakashi Sakamoto msleep(200); 431eb7b3a05STakashi Sakamoto } 432eb7b3a05STakashi Sakamoto 433eb7b3a05STakashi Sakamoto static int 434ac2888b9STakashi Sakamoto start_stream(struct snd_bebob *bebob, struct amdtp_stream *stream) 435eb7b3a05STakashi Sakamoto { 436eb7b3a05STakashi Sakamoto struct cmp_connection *conn; 437eb7b3a05STakashi Sakamoto int err = 0; 438eb7b3a05STakashi Sakamoto 439eb7b3a05STakashi Sakamoto if (stream == &bebob->rx_stream) 440eb7b3a05STakashi Sakamoto conn = &bebob->in_conn; 441eb7b3a05STakashi Sakamoto else 442eb7b3a05STakashi Sakamoto conn = &bebob->out_conn; 443eb7b3a05STakashi Sakamoto 444eb7b3a05STakashi Sakamoto /* channel mapping */ 4453149ac48STakashi Sakamoto if (bebob->maudio_special_quirk == NULL) { 446eb7b3a05STakashi Sakamoto err = map_data_channels(bebob, stream); 447eb7b3a05STakashi Sakamoto if (err < 0) 448eb7b3a05STakashi Sakamoto goto end; 4493149ac48STakashi Sakamoto } 450eb7b3a05STakashi Sakamoto 451eb7b3a05STakashi Sakamoto /* start amdtp stream */ 452eb7b3a05STakashi Sakamoto err = amdtp_stream_start(stream, 453eb7b3a05STakashi Sakamoto conn->resources.channel, 454eb7b3a05STakashi Sakamoto conn->speed); 455eb7b3a05STakashi Sakamoto end: 456eb7b3a05STakashi Sakamoto return err; 457eb7b3a05STakashi Sakamoto } 458eb7b3a05STakashi Sakamoto 45933e41a5cSTakashi Sakamoto static int init_stream(struct snd_bebob *bebob, struct amdtp_stream *stream) 460eb7b3a05STakashi Sakamoto { 46133e41a5cSTakashi Sakamoto enum amdtp_stream_direction dir_stream; 46233e41a5cSTakashi Sakamoto struct cmp_connection *conn; 46333e41a5cSTakashi Sakamoto enum cmp_direction dir_conn; 464eb7b3a05STakashi Sakamoto int err; 465eb7b3a05STakashi Sakamoto 46633e41a5cSTakashi Sakamoto if (stream == &bebob->tx_stream) { 46733e41a5cSTakashi Sakamoto dir_stream = AMDTP_IN_STREAM; 46833e41a5cSTakashi Sakamoto conn = &bebob->out_conn; 46933e41a5cSTakashi Sakamoto dir_conn = CMP_OUTPUT; 47033e41a5cSTakashi Sakamoto } else { 47133e41a5cSTakashi Sakamoto dir_stream = AMDTP_OUT_STREAM; 47233e41a5cSTakashi Sakamoto conn = &bebob->in_conn; 47333e41a5cSTakashi Sakamoto dir_conn = CMP_INPUT; 474eb7b3a05STakashi Sakamoto } 47514a37ac1STakashi Sakamoto 47633e41a5cSTakashi Sakamoto err = cmp_connection_init(conn, bebob->unit, dir_conn, 0); 47733e41a5cSTakashi Sakamoto if (err < 0) 47833e41a5cSTakashi Sakamoto return err; 47933e41a5cSTakashi Sakamoto 48033e41a5cSTakashi Sakamoto err = amdtp_am824_init(stream, bebob->unit, dir_stream, CIP_BLOCKING); 48133e41a5cSTakashi Sakamoto if (err < 0) { 48233e41a5cSTakashi Sakamoto cmp_connection_destroy(conn); 48333e41a5cSTakashi Sakamoto return err; 48433e41a5cSTakashi Sakamoto } 48533e41a5cSTakashi Sakamoto 48633e41a5cSTakashi Sakamoto if (stream == &bebob->tx_stream) { 48733e41a5cSTakashi Sakamoto // BeBoB v3 transfers packets with these qurks: 48833e41a5cSTakashi Sakamoto // - In the beginning of streaming, the value of dbc is 48933e41a5cSTakashi Sakamoto // incremented even if no data blocks are transferred. 49033e41a5cSTakashi Sakamoto // - The value of dbc is reset suddenly. 491c4d860a0STakashi Sakamoto if (bebob->version > 2) 492c4d860a0STakashi Sakamoto bebob->tx_stream.flags |= CIP_EMPTY_HAS_WRONG_DBC | 493c4d860a0STakashi Sakamoto CIP_SKIP_DBC_ZERO_CHECK; 494c4d860a0STakashi Sakamoto 49533e41a5cSTakashi Sakamoto // At high sampling rate, M-Audio special firmware transmits 49633e41a5cSTakashi Sakamoto // empty packet with the value of dbc incremented by 8 but the 49733e41a5cSTakashi Sakamoto // others are valid to IEC 61883-1. 4989d59124cSTakashi Sakamoto if (bebob->maudio_special_quirk) 4999d59124cSTakashi Sakamoto bebob->tx_stream.flags |= CIP_EMPTY_HAS_WRONG_DBC; 500eb7b3a05STakashi Sakamoto } 50133e41a5cSTakashi Sakamoto 50233e41a5cSTakashi Sakamoto return 0; 50333e41a5cSTakashi Sakamoto } 50433e41a5cSTakashi Sakamoto 50533e41a5cSTakashi Sakamoto static void destroy_stream(struct snd_bebob *bebob, struct amdtp_stream *stream) 50633e41a5cSTakashi Sakamoto { 50733e41a5cSTakashi Sakamoto amdtp_stream_destroy(stream); 50833e41a5cSTakashi Sakamoto 50933e41a5cSTakashi Sakamoto if (stream == &bebob->tx_stream) 51033e41a5cSTakashi Sakamoto cmp_connection_destroy(&bebob->out_conn); 51133e41a5cSTakashi Sakamoto else 51233e41a5cSTakashi Sakamoto cmp_connection_destroy(&bebob->in_conn); 51333e41a5cSTakashi Sakamoto } 51433e41a5cSTakashi Sakamoto 51533e41a5cSTakashi Sakamoto int snd_bebob_stream_init_duplex(struct snd_bebob *bebob) 51633e41a5cSTakashi Sakamoto { 51733e41a5cSTakashi Sakamoto int err; 51833e41a5cSTakashi Sakamoto 51933e41a5cSTakashi Sakamoto err = init_stream(bebob, &bebob->tx_stream); 52033e41a5cSTakashi Sakamoto if (err < 0) 521eb7b3a05STakashi Sakamoto return err; 52233e41a5cSTakashi Sakamoto 52333e41a5cSTakashi Sakamoto err = init_stream(bebob, &bebob->rx_stream); 52433e41a5cSTakashi Sakamoto if (err < 0) { 52533e41a5cSTakashi Sakamoto destroy_stream(bebob, &bebob->tx_stream); 52633e41a5cSTakashi Sakamoto return err; 52733e41a5cSTakashi Sakamoto } 52833e41a5cSTakashi Sakamoto 52933e41a5cSTakashi Sakamoto return 0; 530eb7b3a05STakashi Sakamoto } 531eb7b3a05STakashi Sakamoto 532ac2888b9STakashi Sakamoto static int keep_resources(struct snd_bebob *bebob, struct amdtp_stream *stream, 533ac2888b9STakashi Sakamoto unsigned int rate, unsigned int index) 534eb7b3a05STakashi Sakamoto { 535ac2888b9STakashi Sakamoto struct snd_bebob_stream_formation *formation; 536ac2888b9STakashi Sakamoto 537ac2888b9STakashi Sakamoto if (stream == &bebob->tx_stream) 538ac2888b9STakashi Sakamoto formation = bebob->tx_stream_formations + index; 539ac2888b9STakashi Sakamoto else 540ac2888b9STakashi Sakamoto formation = bebob->rx_stream_formations + index; 541ac2888b9STakashi Sakamoto 542ac2888b9STakashi Sakamoto return amdtp_am824_set_parameters(stream, rate, formation->pcm, 543ac2888b9STakashi Sakamoto formation->midi, false); 544ac2888b9STakashi Sakamoto } 545ac2888b9STakashi Sakamoto 546ac2888b9STakashi Sakamoto int snd_bebob_stream_reserve_duplex(struct snd_bebob *bebob, unsigned int rate) 547ac2888b9STakashi Sakamoto { 548eb7b3a05STakashi Sakamoto unsigned int curr_rate; 549ac2888b9STakashi Sakamoto int err; 550eb7b3a05STakashi Sakamoto 551ac2888b9STakashi Sakamoto // Considering JACK/FFADO streaming: 552ac2888b9STakashi Sakamoto // TODO: This can be removed hwdep functionality becomes popular. 553c71283cbSTakashi Sakamoto err = check_connection_used_by_others(bebob, &bebob->rx_stream); 554eb7b3a05STakashi Sakamoto if (err < 0) 555ac2888b9STakashi Sakamoto return err; 556eb7b3a05STakashi Sakamoto 557ac2888b9STakashi Sakamoto err = bebob->spec->rate->get(bebob, &curr_rate); 558ac2888b9STakashi Sakamoto if (err < 0) 559ac2888b9STakashi Sakamoto return err; 560eb7b3a05STakashi Sakamoto if (rate == 0) 561eb7b3a05STakashi Sakamoto rate = curr_rate; 562ac2888b9STakashi Sakamoto if (curr_rate != rate) { 563c71283cbSTakashi Sakamoto amdtp_stream_stop(&bebob->tx_stream); 564ac2888b9STakashi Sakamoto amdtp_stream_stop(&bebob->rx_stream); 565ac2888b9STakashi Sakamoto 566eb7b3a05STakashi Sakamoto break_both_connections(bebob); 567eb7b3a05STakashi Sakamoto } 568eb7b3a05STakashi Sakamoto 569ac2888b9STakashi Sakamoto if (bebob->substreams_counter == 0 || curr_rate != rate) { 570ac2888b9STakashi Sakamoto unsigned int index; 571ac2888b9STakashi Sakamoto 572ac2888b9STakashi Sakamoto // NOTE: 573ac2888b9STakashi Sakamoto // If establishing connections at first, Yamaha GO46 574ac2888b9STakashi Sakamoto // (and maybe Terratec X24) don't generate sound. 575ac2888b9STakashi Sakamoto // 576ac2888b9STakashi Sakamoto // For firmware customized by M-Audio, refer to next NOTE. 577ac2888b9STakashi Sakamoto err = bebob->spec->rate->set(bebob, rate); 578eb7b3a05STakashi Sakamoto if (err < 0) { 579eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 580eb7b3a05STakashi Sakamoto "fail to set sampling rate: %d\n", 581eb7b3a05STakashi Sakamoto err); 582ac2888b9STakashi Sakamoto return err; 5833149ac48STakashi Sakamoto } 584eb7b3a05STakashi Sakamoto 585ac2888b9STakashi Sakamoto err = get_formation_index(rate, &index); 586eb7b3a05STakashi Sakamoto if (err < 0) 587ac2888b9STakashi Sakamoto return err; 588eb7b3a05STakashi Sakamoto 589ac2888b9STakashi Sakamoto err = keep_resources(bebob, &bebob->tx_stream, rate, index); 590ac2888b9STakashi Sakamoto if (err < 0) 591ac2888b9STakashi Sakamoto return err; 592ac2888b9STakashi Sakamoto 593ac2888b9STakashi Sakamoto err = keep_resources(bebob, &bebob->rx_stream, rate, index); 594ac2888b9STakashi Sakamoto if (err < 0) 595ac2888b9STakashi Sakamoto return err; 596ac2888b9STakashi Sakamoto } 597ac2888b9STakashi Sakamoto 598ac2888b9STakashi Sakamoto return 0; 599ac2888b9STakashi Sakamoto } 600ac2888b9STakashi Sakamoto 601ac2888b9STakashi Sakamoto int snd_bebob_stream_start_duplex(struct snd_bebob *bebob) 602ac2888b9STakashi Sakamoto { 603ac2888b9STakashi Sakamoto int err; 604ac2888b9STakashi Sakamoto 605ac2888b9STakashi Sakamoto // Need no substreams. 606ac2888b9STakashi Sakamoto if (bebob->substreams_counter == 0) 607ac2888b9STakashi Sakamoto return -EIO; 608ac2888b9STakashi Sakamoto 609ac2888b9STakashi Sakamoto // packet queueing error or detecting discontinuity 610ac2888b9STakashi Sakamoto if (amdtp_streaming_error(&bebob->rx_stream) || 611ac2888b9STakashi Sakamoto amdtp_streaming_error(&bebob->tx_stream)) { 612ac2888b9STakashi Sakamoto amdtp_stream_stop(&bebob->rx_stream); 613ac2888b9STakashi Sakamoto amdtp_stream_stop(&bebob->tx_stream); 614ac2888b9STakashi Sakamoto 615ac2888b9STakashi Sakamoto break_both_connections(bebob); 616ac2888b9STakashi Sakamoto } 617ac2888b9STakashi Sakamoto 618ac2888b9STakashi Sakamoto if (!amdtp_stream_running(&bebob->rx_stream)) { 619ac2888b9STakashi Sakamoto unsigned int curr_rate; 620ac2888b9STakashi Sakamoto 621ac2888b9STakashi Sakamoto if (bebob->maudio_special_quirk) { 622ac2888b9STakashi Sakamoto err = bebob->spec->rate->get(bebob, &curr_rate); 623ac2888b9STakashi Sakamoto if (err < 0) 624ac2888b9STakashi Sakamoto return err; 625ac2888b9STakashi Sakamoto } 626ac2888b9STakashi Sakamoto 627ac2888b9STakashi Sakamoto err = make_both_connections(bebob); 628ac2888b9STakashi Sakamoto if (err < 0) 629ac2888b9STakashi Sakamoto return err; 630ac2888b9STakashi Sakamoto 631ac2888b9STakashi Sakamoto err = start_stream(bebob, &bebob->rx_stream); 632eb7b3a05STakashi Sakamoto if (err < 0) { 633eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 634eb7b3a05STakashi Sakamoto "fail to run AMDTP master stream:%d\n", err); 635ac2888b9STakashi Sakamoto goto error; 636eb7b3a05STakashi Sakamoto } 637eb7b3a05STakashi Sakamoto 638ac2888b9STakashi Sakamoto // NOTE: 639ac2888b9STakashi Sakamoto // The firmware customized by M-Audio uses these commands to 640ac2888b9STakashi Sakamoto // start transmitting stream. This is not usual way. 641ac2888b9STakashi Sakamoto if (bebob->maudio_special_quirk) { 642ac2888b9STakashi Sakamoto err = bebob->spec->rate->set(bebob, curr_rate); 6433149ac48STakashi Sakamoto if (err < 0) { 6443149ac48STakashi Sakamoto dev_err(&bebob->unit->device, 6453149ac48STakashi Sakamoto "fail to ensure sampling rate: %d\n", 6463149ac48STakashi Sakamoto err); 647ac2888b9STakashi Sakamoto goto error; 6483149ac48STakashi Sakamoto } 6493149ac48STakashi Sakamoto } 6503149ac48STakashi Sakamoto 651c71283cbSTakashi Sakamoto if (!amdtp_stream_wait_callback(&bebob->rx_stream, 652c71283cbSTakashi Sakamoto CALLBACK_TIMEOUT)) { 653c71283cbSTakashi Sakamoto amdtp_stream_stop(&bebob->rx_stream); 654eb7b3a05STakashi Sakamoto break_both_connections(bebob); 655eb7b3a05STakashi Sakamoto err = -ETIMEDOUT; 656ac2888b9STakashi Sakamoto goto error; 657eb7b3a05STakashi Sakamoto } 658eb7b3a05STakashi Sakamoto } 659eb7b3a05STakashi Sakamoto 660c71283cbSTakashi Sakamoto if (!amdtp_stream_running(&bebob->tx_stream)) { 661ac2888b9STakashi Sakamoto err = start_stream(bebob, &bebob->tx_stream); 662eb7b3a05STakashi Sakamoto if (err < 0) { 663eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 664eb7b3a05STakashi Sakamoto "fail to run AMDTP slave stream:%d\n", err); 665ac2888b9STakashi Sakamoto goto error; 666eb7b3a05STakashi Sakamoto } 667eb7b3a05STakashi Sakamoto 668c71283cbSTakashi Sakamoto if (!amdtp_stream_wait_callback(&bebob->tx_stream, 669c71283cbSTakashi Sakamoto CALLBACK_TIMEOUT)) { 670ac2888b9STakashi Sakamoto err = -ETIMEDOUT; 671ac2888b9STakashi Sakamoto goto error; 672ac2888b9STakashi Sakamoto } 673ac2888b9STakashi Sakamoto } 674ac2888b9STakashi Sakamoto 675ac2888b9STakashi Sakamoto return 0; 676ac2888b9STakashi Sakamoto error: 677c71283cbSTakashi Sakamoto amdtp_stream_stop(&bebob->tx_stream); 678c71283cbSTakashi Sakamoto amdtp_stream_stop(&bebob->rx_stream); 679eb7b3a05STakashi Sakamoto break_both_connections(bebob); 680eb7b3a05STakashi Sakamoto return err; 681eb7b3a05STakashi Sakamoto } 682eb7b3a05STakashi Sakamoto 683eb7b3a05STakashi Sakamoto void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob) 684eb7b3a05STakashi Sakamoto { 6854fd6c6c7STakashi Sakamoto if (bebob->substreams_counter == 0) { 686c71283cbSTakashi Sakamoto amdtp_stream_stop(&bebob->rx_stream); 687c71283cbSTakashi Sakamoto amdtp_stream_stop(&bebob->tx_stream); 688eb7b3a05STakashi Sakamoto 689eb7b3a05STakashi Sakamoto break_both_connections(bebob); 690eb7b3a05STakashi Sakamoto } 691eb7b3a05STakashi Sakamoto } 692eb7b3a05STakashi Sakamoto 693d23c2cc4STakashi Sakamoto /* 694d23c2cc4STakashi Sakamoto * This function should be called before starting streams or after stopping 695d23c2cc4STakashi Sakamoto * streams. 696d23c2cc4STakashi Sakamoto */ 697eb7b3a05STakashi Sakamoto void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob) 698eb7b3a05STakashi Sakamoto { 69933e41a5cSTakashi Sakamoto destroy_stream(bebob, &bebob->tx_stream); 70033e41a5cSTakashi Sakamoto destroy_stream(bebob, &bebob->rx_stream); 701eb7b3a05STakashi Sakamoto } 702eb7b3a05STakashi Sakamoto 703eb7b3a05STakashi Sakamoto /* 704eb7b3a05STakashi Sakamoto * See: Table 50: Extended Stream Format Info Format Hierarchy Level 2’ 705eb7b3a05STakashi Sakamoto * in Additional AVC commands (Nov 2003, BridgeCo) 706eb7b3a05STakashi Sakamoto * Also 'Clause 12 AM824 sequence adaption layers' in IEC 61883-6:2005 707eb7b3a05STakashi Sakamoto */ 708eb7b3a05STakashi Sakamoto static int 709eb7b3a05STakashi Sakamoto parse_stream_formation(u8 *buf, unsigned int len, 710eb7b3a05STakashi Sakamoto struct snd_bebob_stream_formation *formation) 711eb7b3a05STakashi Sakamoto { 712eb7b3a05STakashi Sakamoto unsigned int i, e, channels, format; 713eb7b3a05STakashi Sakamoto 714eb7b3a05STakashi Sakamoto /* 715eb7b3a05STakashi Sakamoto * this module can support a hierarchy combination that: 716eb7b3a05STakashi Sakamoto * Root: Audio and Music (0x90) 717eb7b3a05STakashi Sakamoto * Level 1: AM824 Compound (0x40) 718eb7b3a05STakashi Sakamoto */ 719eb7b3a05STakashi Sakamoto if ((buf[0] != 0x90) || (buf[1] != 0x40)) 720eb7b3a05STakashi Sakamoto return -ENOSYS; 721eb7b3a05STakashi Sakamoto 722eb7b3a05STakashi Sakamoto /* check sampling rate */ 723eb7b3a05STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(bridgeco_freq_table); i++) { 724eb7b3a05STakashi Sakamoto if (buf[2] == bridgeco_freq_table[i]) 725eb7b3a05STakashi Sakamoto break; 726eb7b3a05STakashi Sakamoto } 72733a5f989SDan Carpenter if (i == ARRAY_SIZE(bridgeco_freq_table)) 728eb7b3a05STakashi Sakamoto return -ENOSYS; 729eb7b3a05STakashi Sakamoto 730eb7b3a05STakashi Sakamoto /* Avoid double count by different entries for the same rate. */ 731eb7b3a05STakashi Sakamoto memset(&formation[i], 0, sizeof(struct snd_bebob_stream_formation)); 732eb7b3a05STakashi Sakamoto 733eb7b3a05STakashi Sakamoto for (e = 0; e < buf[4]; e++) { 734eb7b3a05STakashi Sakamoto channels = buf[5 + e * 2]; 735eb7b3a05STakashi Sakamoto format = buf[6 + e * 2]; 736eb7b3a05STakashi Sakamoto 737eb7b3a05STakashi Sakamoto switch (format) { 73851fa31d4STakashi Sakamoto /* IEC 60958 Conformant, currently handled as MBLA */ 739eb7b3a05STakashi Sakamoto case 0x00: 740eb7b3a05STakashi Sakamoto /* Multi bit linear audio */ 741eb7b3a05STakashi Sakamoto case 0x06: /* Raw */ 742eb7b3a05STakashi Sakamoto formation[i].pcm += channels; 743eb7b3a05STakashi Sakamoto break; 744eb7b3a05STakashi Sakamoto /* MIDI Conformant */ 745eb7b3a05STakashi Sakamoto case 0x0d: 746eb7b3a05STakashi Sakamoto formation[i].midi += channels; 747eb7b3a05STakashi Sakamoto break; 748eb7b3a05STakashi Sakamoto /* IEC 61937-3 to 7 */ 749eb7b3a05STakashi Sakamoto case 0x01: 750eb7b3a05STakashi Sakamoto case 0x02: 751eb7b3a05STakashi Sakamoto case 0x03: 752eb7b3a05STakashi Sakamoto case 0x04: 753eb7b3a05STakashi Sakamoto case 0x05: 754eb7b3a05STakashi Sakamoto /* Multi bit linear audio */ 755eb7b3a05STakashi Sakamoto case 0x07: /* DVD-Audio */ 756eb7b3a05STakashi Sakamoto case 0x0c: /* High Precision */ 757eb7b3a05STakashi Sakamoto /* One Bit Audio */ 758eb7b3a05STakashi Sakamoto case 0x08: /* (Plain) Raw */ 759eb7b3a05STakashi Sakamoto case 0x09: /* (Plain) SACD */ 760eb7b3a05STakashi Sakamoto case 0x0a: /* (Encoded) Raw */ 761eb7b3a05STakashi Sakamoto case 0x0b: /* (Encoded) SACD */ 762eb7b3a05STakashi Sakamoto /* Synchronization Stream (Stereo Raw audio) */ 763eb7b3a05STakashi Sakamoto case 0x40: 764eb7b3a05STakashi Sakamoto /* Don't care */ 765eb7b3a05STakashi Sakamoto case 0xff: 766eb7b3a05STakashi Sakamoto default: 767eb7b3a05STakashi Sakamoto return -ENOSYS; /* not supported */ 768eb7b3a05STakashi Sakamoto } 769eb7b3a05STakashi Sakamoto } 770eb7b3a05STakashi Sakamoto 77149c7b3fcSTakashi Sakamoto if (formation[i].pcm > AM824_MAX_CHANNELS_FOR_PCM || 77249c7b3fcSTakashi Sakamoto formation[i].midi > AM824_MAX_CHANNELS_FOR_MIDI) 773eb7b3a05STakashi Sakamoto return -ENOSYS; 774eb7b3a05STakashi Sakamoto 775eb7b3a05STakashi Sakamoto return 0; 776eb7b3a05STakashi Sakamoto } 777eb7b3a05STakashi Sakamoto 778eb7b3a05STakashi Sakamoto static int 779eb7b3a05STakashi Sakamoto fill_stream_formations(struct snd_bebob *bebob, enum avc_bridgeco_plug_dir dir, 780eb7b3a05STakashi Sakamoto unsigned short pid) 781eb7b3a05STakashi Sakamoto { 782eb7b3a05STakashi Sakamoto u8 *buf; 783eb7b3a05STakashi Sakamoto struct snd_bebob_stream_formation *formations; 784eb7b3a05STakashi Sakamoto unsigned int len, eid; 785eb7b3a05STakashi Sakamoto u8 addr[AVC_BRIDGECO_ADDR_BYTES]; 786eb7b3a05STakashi Sakamoto int err; 787eb7b3a05STakashi Sakamoto 788eb7b3a05STakashi Sakamoto buf = kmalloc(FORMAT_MAXIMUM_LENGTH, GFP_KERNEL); 789eb7b3a05STakashi Sakamoto if (buf == NULL) 790eb7b3a05STakashi Sakamoto return -ENOMEM; 791eb7b3a05STakashi Sakamoto 792eb7b3a05STakashi Sakamoto if (dir == AVC_BRIDGECO_PLUG_DIR_IN) 793eb7b3a05STakashi Sakamoto formations = bebob->rx_stream_formations; 794eb7b3a05STakashi Sakamoto else 795eb7b3a05STakashi Sakamoto formations = bebob->tx_stream_formations; 796eb7b3a05STakashi Sakamoto 797eb7b3a05STakashi Sakamoto for (eid = 0; eid < SND_BEBOB_STRM_FMT_ENTRIES; eid++) { 798eb7b3a05STakashi Sakamoto len = FORMAT_MAXIMUM_LENGTH; 799eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, dir, 800eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, pid); 801eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_strm_fmt(bebob->unit, addr, buf, 802eb7b3a05STakashi Sakamoto &len, eid); 803eb7b3a05STakashi Sakamoto /* No entries remained. */ 804eb7b3a05STakashi Sakamoto if (err == -EINVAL && eid > 0) { 805eb7b3a05STakashi Sakamoto err = 0; 806eb7b3a05STakashi Sakamoto break; 807eb7b3a05STakashi Sakamoto } else if (err < 0) { 808eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 809eb7b3a05STakashi Sakamoto "fail to get stream format %d for isoc %s plug %d:%d\n", 810eb7b3a05STakashi Sakamoto eid, 811eb7b3a05STakashi Sakamoto (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : 812eb7b3a05STakashi Sakamoto "out", 813eb7b3a05STakashi Sakamoto pid, err); 814eb7b3a05STakashi Sakamoto break; 815eb7b3a05STakashi Sakamoto } 816eb7b3a05STakashi Sakamoto 817eb7b3a05STakashi Sakamoto err = parse_stream_formation(buf, len, formations); 818eb7b3a05STakashi Sakamoto if (err < 0) 819eb7b3a05STakashi Sakamoto break; 820eb7b3a05STakashi Sakamoto } 821eb7b3a05STakashi Sakamoto 822eb7b3a05STakashi Sakamoto kfree(buf); 823eb7b3a05STakashi Sakamoto return err; 824eb7b3a05STakashi Sakamoto } 825eb7b3a05STakashi Sakamoto 826eb7b3a05STakashi Sakamoto static int 827eb7b3a05STakashi Sakamoto seek_msu_sync_input_plug(struct snd_bebob *bebob) 828eb7b3a05STakashi Sakamoto { 829eb7b3a05STakashi Sakamoto u8 plugs[AVC_PLUG_INFO_BUF_BYTES], addr[AVC_BRIDGECO_ADDR_BYTES]; 830a6b598bfSTakashi Sakamoto unsigned int i; 831a6b598bfSTakashi Sakamoto enum avc_bridgeco_plug_type type; 832eb7b3a05STakashi Sakamoto int err; 833eb7b3a05STakashi Sakamoto 834eb7b3a05STakashi Sakamoto /* Get the number of Music Sub Unit for both direction. */ 835eb7b3a05STakashi Sakamoto err = avc_general_get_plug_info(bebob->unit, 0x0c, 0x00, 0x00, plugs); 836eb7b3a05STakashi Sakamoto if (err < 0) { 837eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 838eb7b3a05STakashi Sakamoto "fail to get info for MSU in/out plugs: %d\n", 839eb7b3a05STakashi Sakamoto err); 840eb7b3a05STakashi Sakamoto goto end; 841eb7b3a05STakashi Sakamoto } 842eb7b3a05STakashi Sakamoto 843eb7b3a05STakashi Sakamoto /* seek destination plugs for 'MSU sync input' */ 844eb7b3a05STakashi Sakamoto bebob->sync_input_plug = -1; 845eb7b3a05STakashi Sakamoto for (i = 0; i < plugs[0]; i++) { 846eb7b3a05STakashi Sakamoto avc_bridgeco_fill_msu_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, i); 847eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 848eb7b3a05STakashi Sakamoto if (err < 0) { 849eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 850eb7b3a05STakashi Sakamoto "fail to get type for MSU in plug %d: %d\n", 851eb7b3a05STakashi Sakamoto i, err); 852eb7b3a05STakashi Sakamoto goto end; 853eb7b3a05STakashi Sakamoto } 854eb7b3a05STakashi Sakamoto 855eb7b3a05STakashi Sakamoto if (type == AVC_BRIDGECO_PLUG_TYPE_SYNC) { 856eb7b3a05STakashi Sakamoto bebob->sync_input_plug = i; 857eb7b3a05STakashi Sakamoto break; 858eb7b3a05STakashi Sakamoto } 859eb7b3a05STakashi Sakamoto } 860eb7b3a05STakashi Sakamoto end: 861eb7b3a05STakashi Sakamoto return err; 862eb7b3a05STakashi Sakamoto } 863eb7b3a05STakashi Sakamoto 864eb7b3a05STakashi Sakamoto int snd_bebob_stream_discover(struct snd_bebob *bebob) 865eb7b3a05STakashi Sakamoto { 8666b9866c8SJulia Lawall const struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock; 867eb7b3a05STakashi Sakamoto u8 plugs[AVC_PLUG_INFO_BUF_BYTES], addr[AVC_BRIDGECO_ADDR_BYTES]; 868eb7b3a05STakashi Sakamoto enum avc_bridgeco_plug_type type; 869eb7b3a05STakashi Sakamoto unsigned int i; 870eb7b3a05STakashi Sakamoto int err; 871eb7b3a05STakashi Sakamoto 872eb7b3a05STakashi Sakamoto /* the number of plugs for isoc in/out, ext in/out */ 873eb7b3a05STakashi Sakamoto err = avc_general_get_plug_info(bebob->unit, 0x1f, 0x07, 0x00, plugs); 874eb7b3a05STakashi Sakamoto if (err < 0) { 875eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 876eb7b3a05STakashi Sakamoto "fail to get info for isoc/external in/out plugs: %d\n", 877eb7b3a05STakashi Sakamoto err); 878eb7b3a05STakashi Sakamoto goto end; 879eb7b3a05STakashi Sakamoto } 880eb7b3a05STakashi Sakamoto 881eb7b3a05STakashi Sakamoto /* 882eb7b3a05STakashi Sakamoto * This module supports at least one isoc input plug and one isoc 883eb7b3a05STakashi Sakamoto * output plug. 884eb7b3a05STakashi Sakamoto */ 885eb7b3a05STakashi Sakamoto if ((plugs[0] == 0) || (plugs[1] == 0)) { 886eb7b3a05STakashi Sakamoto err = -ENOSYS; 887eb7b3a05STakashi Sakamoto goto end; 888eb7b3a05STakashi Sakamoto } 889eb7b3a05STakashi Sakamoto 890eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, 891eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 892eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 893eb7b3a05STakashi Sakamoto if (err < 0) { 894eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 895eb7b3a05STakashi Sakamoto "fail to get type for isoc in plug 0: %d\n", err); 896eb7b3a05STakashi Sakamoto goto end; 897eb7b3a05STakashi Sakamoto } else if (type != AVC_BRIDGECO_PLUG_TYPE_ISOC) { 898eb7b3a05STakashi Sakamoto err = -ENOSYS; 899eb7b3a05STakashi Sakamoto goto end; 900eb7b3a05STakashi Sakamoto } 901eb7b3a05STakashi Sakamoto err = fill_stream_formations(bebob, AVC_BRIDGECO_PLUG_DIR_IN, 0); 902eb7b3a05STakashi Sakamoto if (err < 0) 903eb7b3a05STakashi Sakamoto goto end; 904eb7b3a05STakashi Sakamoto 905eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_OUT, 906eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 907eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 908eb7b3a05STakashi Sakamoto if (err < 0) { 909eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 910eb7b3a05STakashi Sakamoto "fail to get type for isoc out plug 0: %d\n", err); 911eb7b3a05STakashi Sakamoto goto end; 912eb7b3a05STakashi Sakamoto } else if (type != AVC_BRIDGECO_PLUG_TYPE_ISOC) { 913eb7b3a05STakashi Sakamoto err = -ENOSYS; 914eb7b3a05STakashi Sakamoto goto end; 915eb7b3a05STakashi Sakamoto } 916eb7b3a05STakashi Sakamoto err = fill_stream_formations(bebob, AVC_BRIDGECO_PLUG_DIR_OUT, 0); 917eb7b3a05STakashi Sakamoto if (err < 0) 918eb7b3a05STakashi Sakamoto goto end; 919eb7b3a05STakashi Sakamoto 920eb7b3a05STakashi Sakamoto /* count external input plugs for MIDI */ 921eb7b3a05STakashi Sakamoto bebob->midi_input_ports = 0; 922eb7b3a05STakashi Sakamoto for (i = 0; i < plugs[2]; i++) { 923eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, 924eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_EXT, i); 925eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 926eb7b3a05STakashi Sakamoto if (err < 0) { 927eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 928eb7b3a05STakashi Sakamoto "fail to get type for external in plug %d: %d\n", 929eb7b3a05STakashi Sakamoto i, err); 930eb7b3a05STakashi Sakamoto goto end; 931eb7b3a05STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI) { 932eb7b3a05STakashi Sakamoto bebob->midi_input_ports++; 933eb7b3a05STakashi Sakamoto } 934eb7b3a05STakashi Sakamoto } 935eb7b3a05STakashi Sakamoto 936eb7b3a05STakashi Sakamoto /* count external output plugs for MIDI */ 937eb7b3a05STakashi Sakamoto bebob->midi_output_ports = 0; 938eb7b3a05STakashi Sakamoto for (i = 0; i < plugs[3]; i++) { 939eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_OUT, 940eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_EXT, i); 941eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 942eb7b3a05STakashi Sakamoto if (err < 0) { 943eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 944eb7b3a05STakashi Sakamoto "fail to get type for external out plug %d: %d\n", 945eb7b3a05STakashi Sakamoto i, err); 946eb7b3a05STakashi Sakamoto goto end; 947eb7b3a05STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI) { 948eb7b3a05STakashi Sakamoto bebob->midi_output_ports++; 949eb7b3a05STakashi Sakamoto } 950eb7b3a05STakashi Sakamoto } 951eb7b3a05STakashi Sakamoto 952eb7b3a05STakashi Sakamoto /* for check source of clock later */ 9531fc9522aSTakashi Sakamoto if (!clk_spec) 954eb7b3a05STakashi Sakamoto err = seek_msu_sync_input_plug(bebob); 955eb7b3a05STakashi Sakamoto end: 956eb7b3a05STakashi Sakamoto return err; 957eb7b3a05STakashi Sakamoto } 958618eabeaSTakashi Sakamoto 959618eabeaSTakashi Sakamoto void snd_bebob_stream_lock_changed(struct snd_bebob *bebob) 960618eabeaSTakashi Sakamoto { 961618eabeaSTakashi Sakamoto bebob->dev_lock_changed = true; 962618eabeaSTakashi Sakamoto wake_up(&bebob->hwdep_wait); 963618eabeaSTakashi Sakamoto } 964618eabeaSTakashi Sakamoto 965618eabeaSTakashi Sakamoto int snd_bebob_stream_lock_try(struct snd_bebob *bebob) 966618eabeaSTakashi Sakamoto { 967618eabeaSTakashi Sakamoto int err; 968618eabeaSTakashi Sakamoto 969618eabeaSTakashi Sakamoto spin_lock_irq(&bebob->lock); 970618eabeaSTakashi Sakamoto 971618eabeaSTakashi Sakamoto /* user land lock this */ 972618eabeaSTakashi Sakamoto if (bebob->dev_lock_count < 0) { 973618eabeaSTakashi Sakamoto err = -EBUSY; 974618eabeaSTakashi Sakamoto goto end; 975618eabeaSTakashi Sakamoto } 976618eabeaSTakashi Sakamoto 977618eabeaSTakashi Sakamoto /* this is the first time */ 978618eabeaSTakashi Sakamoto if (bebob->dev_lock_count++ == 0) 979618eabeaSTakashi Sakamoto snd_bebob_stream_lock_changed(bebob); 980618eabeaSTakashi Sakamoto err = 0; 981618eabeaSTakashi Sakamoto end: 982618eabeaSTakashi Sakamoto spin_unlock_irq(&bebob->lock); 983618eabeaSTakashi Sakamoto return err; 984618eabeaSTakashi Sakamoto } 985618eabeaSTakashi Sakamoto 986618eabeaSTakashi Sakamoto void snd_bebob_stream_lock_release(struct snd_bebob *bebob) 987618eabeaSTakashi Sakamoto { 988618eabeaSTakashi Sakamoto spin_lock_irq(&bebob->lock); 989618eabeaSTakashi Sakamoto 990618eabeaSTakashi Sakamoto if (WARN_ON(bebob->dev_lock_count <= 0)) 991618eabeaSTakashi Sakamoto goto end; 992618eabeaSTakashi Sakamoto if (--bebob->dev_lock_count == 0) 993618eabeaSTakashi Sakamoto snd_bebob_stream_lock_changed(bebob); 994618eabeaSTakashi Sakamoto end: 995618eabeaSTakashi Sakamoto spin_unlock_irq(&bebob->lock); 996618eabeaSTakashi Sakamoto } 997