1da607e19SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2eb7b3a05STakashi Sakamoto /* 3eb7b3a05STakashi Sakamoto * bebob_stream.c - a part of driver for BeBoB based devices 4eb7b3a05STakashi Sakamoto * 5eb7b3a05STakashi Sakamoto * Copyright (c) 2013-2014 Takashi Sakamoto 6eb7b3a05STakashi Sakamoto */ 7eb7b3a05STakashi Sakamoto 8eb7b3a05STakashi Sakamoto #include "./bebob.h" 9eb7b3a05STakashi Sakamoto 109a73195eSTakashi Sakamoto #define CALLBACK_TIMEOUT 2000 11b6bc8123STakashi Sakamoto #define FW_ISO_RESOURCE_DELAY 1000 12eb7b3a05STakashi Sakamoto 13eb7b3a05STakashi Sakamoto /* 14eb7b3a05STakashi Sakamoto * NOTE; 15eb7b3a05STakashi Sakamoto * For BeBoB streams, Both of input and output CMP connection are important. 16eb7b3a05STakashi Sakamoto * 17eb7b3a05STakashi Sakamoto * For most devices, each CMP connection starts to transmit/receive a 18eb7b3a05STakashi Sakamoto * corresponding stream. But for a few devices, both of CMP connection needs 19eb7b3a05STakashi Sakamoto * to start transmitting stream. An example is 'M-Audio Firewire 410'. 20eb7b3a05STakashi Sakamoto */ 21eb7b3a05STakashi Sakamoto 22eb7b3a05STakashi Sakamoto /* 128 is an arbitrary length but it seems to be enough */ 23eb7b3a05STakashi Sakamoto #define FORMAT_MAXIMUM_LENGTH 128 24eb7b3a05STakashi Sakamoto 25eb7b3a05STakashi Sakamoto const unsigned int snd_bebob_rate_table[SND_BEBOB_STRM_FMT_ENTRIES] = { 26eb7b3a05STakashi Sakamoto [0] = 32000, 27eb7b3a05STakashi Sakamoto [1] = 44100, 28eb7b3a05STakashi Sakamoto [2] = 48000, 29eb7b3a05STakashi Sakamoto [3] = 88200, 30eb7b3a05STakashi Sakamoto [4] = 96000, 31eb7b3a05STakashi Sakamoto [5] = 176400, 32eb7b3a05STakashi Sakamoto [6] = 192000, 33eb7b3a05STakashi Sakamoto }; 34eb7b3a05STakashi Sakamoto 35eb7b3a05STakashi Sakamoto /* 36eb7b3a05STakashi Sakamoto * See: Table 51: Extended Stream Format Info ‘Sampling Frequency’ 37eb7b3a05STakashi Sakamoto * in Additional AVC commands (Nov 2003, BridgeCo) 38eb7b3a05STakashi Sakamoto */ 39eb7b3a05STakashi Sakamoto static const unsigned int bridgeco_freq_table[] = { 40eb7b3a05STakashi Sakamoto [0] = 0x02, 41eb7b3a05STakashi Sakamoto [1] = 0x03, 42eb7b3a05STakashi Sakamoto [2] = 0x04, 43eb7b3a05STakashi Sakamoto [3] = 0x0a, 44eb7b3a05STakashi Sakamoto [4] = 0x05, 45eb7b3a05STakashi Sakamoto [5] = 0x06, 46eb7b3a05STakashi Sakamoto [6] = 0x07, 47eb7b3a05STakashi Sakamoto }; 48eb7b3a05STakashi Sakamoto 4907905298SLucas Tanure static int 5007905298SLucas Tanure get_formation_index(unsigned int rate, unsigned int *index) 51eb7b3a05STakashi Sakamoto { 52eb7b3a05STakashi Sakamoto unsigned int i; 53eb7b3a05STakashi Sakamoto 54eb7b3a05STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(snd_bebob_rate_table); i++) { 5507905298SLucas Tanure if (snd_bebob_rate_table[i] == rate) { 5607905298SLucas Tanure *index = i; 5707905298SLucas Tanure return 0; 5807905298SLucas Tanure } 59eb7b3a05STakashi Sakamoto } 60eb7b3a05STakashi Sakamoto return -EINVAL; 61eb7b3a05STakashi Sakamoto } 62eb7b3a05STakashi Sakamoto 63eb7b3a05STakashi Sakamoto int 64eb7b3a05STakashi Sakamoto snd_bebob_stream_get_rate(struct snd_bebob *bebob, unsigned int *curr_rate) 65eb7b3a05STakashi Sakamoto { 66eb7b3a05STakashi Sakamoto unsigned int tx_rate, rx_rate, trials; 67eb7b3a05STakashi Sakamoto int err; 68eb7b3a05STakashi Sakamoto 69eb7b3a05STakashi Sakamoto trials = 0; 70eb7b3a05STakashi Sakamoto do { 71eb7b3a05STakashi Sakamoto err = avc_general_get_sig_fmt(bebob->unit, &tx_rate, 72eb7b3a05STakashi Sakamoto AVC_GENERAL_PLUG_DIR_OUT, 0); 73eb7b3a05STakashi Sakamoto } while (err == -EAGAIN && ++trials < 3); 74eb7b3a05STakashi Sakamoto if (err < 0) 75eb7b3a05STakashi Sakamoto goto end; 76eb7b3a05STakashi Sakamoto 77eb7b3a05STakashi Sakamoto trials = 0; 78eb7b3a05STakashi Sakamoto do { 79eb7b3a05STakashi Sakamoto err = avc_general_get_sig_fmt(bebob->unit, &rx_rate, 80eb7b3a05STakashi Sakamoto AVC_GENERAL_PLUG_DIR_IN, 0); 81eb7b3a05STakashi Sakamoto } while (err == -EAGAIN && ++trials < 3); 82eb7b3a05STakashi Sakamoto if (err < 0) 83eb7b3a05STakashi Sakamoto goto end; 84eb7b3a05STakashi Sakamoto 85eb7b3a05STakashi Sakamoto *curr_rate = rx_rate; 86eb7b3a05STakashi Sakamoto if (rx_rate == tx_rate) 87eb7b3a05STakashi Sakamoto goto end; 88eb7b3a05STakashi Sakamoto 89eb7b3a05STakashi Sakamoto /* synchronize receive stream rate to transmit stream rate */ 90eb7b3a05STakashi Sakamoto err = avc_general_set_sig_fmt(bebob->unit, rx_rate, 91eb7b3a05STakashi Sakamoto AVC_GENERAL_PLUG_DIR_IN, 0); 92eb7b3a05STakashi Sakamoto end: 93eb7b3a05STakashi Sakamoto return err; 94eb7b3a05STakashi Sakamoto } 95eb7b3a05STakashi Sakamoto 96eb7b3a05STakashi Sakamoto int 97eb7b3a05STakashi Sakamoto snd_bebob_stream_set_rate(struct snd_bebob *bebob, unsigned int rate) 98eb7b3a05STakashi Sakamoto { 99eb7b3a05STakashi Sakamoto int err; 100eb7b3a05STakashi Sakamoto 101eb7b3a05STakashi Sakamoto err = avc_general_set_sig_fmt(bebob->unit, rate, 102eb7b3a05STakashi Sakamoto AVC_GENERAL_PLUG_DIR_OUT, 0); 103eb7b3a05STakashi Sakamoto if (err < 0) 104eb7b3a05STakashi Sakamoto goto end; 105eb7b3a05STakashi Sakamoto 106eb7b3a05STakashi Sakamoto err = avc_general_set_sig_fmt(bebob->unit, rate, 107eb7b3a05STakashi Sakamoto AVC_GENERAL_PLUG_DIR_IN, 0); 108eb7b3a05STakashi Sakamoto if (err < 0) 109eb7b3a05STakashi Sakamoto goto end; 110eb7b3a05STakashi Sakamoto 111eb7b3a05STakashi Sakamoto /* 112eb7b3a05STakashi Sakamoto * Some devices need a bit time for transition. 113eb7b3a05STakashi Sakamoto * 300msec is got by some experiments. 114eb7b3a05STakashi Sakamoto */ 115eb7b3a05STakashi Sakamoto msleep(300); 116eb7b3a05STakashi Sakamoto end: 117eb7b3a05STakashi Sakamoto return err; 118eb7b3a05STakashi Sakamoto } 119eb7b3a05STakashi Sakamoto 1203e254b16STakashi Sakamoto int snd_bebob_stream_get_clock_src(struct snd_bebob *bebob, 1213e254b16STakashi Sakamoto enum snd_bebob_clock_type *src) 122eb7b3a05STakashi Sakamoto { 1236b9866c8SJulia Lawall const struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock; 124eb7b3a05STakashi Sakamoto u8 addr[AVC_BRIDGECO_ADDR_BYTES], input[7]; 1251fc9522aSTakashi Sakamoto unsigned int id; 1265a668812STakashi Sakamoto enum avc_bridgeco_plug_type type; 127eb7b3a05STakashi Sakamoto int err = 0; 128eb7b3a05STakashi Sakamoto 1291fc9522aSTakashi Sakamoto /* 1.The device has its own operation to switch source of clock */ 1301fc9522aSTakashi Sakamoto if (clk_spec) { 1311fc9522aSTakashi Sakamoto err = clk_spec->get(bebob, &id); 132d1d0b6b6SChristian Vogel if (err < 0) { 1331fc9522aSTakashi Sakamoto dev_err(&bebob->unit->device, 1341fc9522aSTakashi Sakamoto "fail to get clock source: %d\n", err); 135d1d0b6b6SChristian Vogel goto end; 136d1d0b6b6SChristian Vogel } 137d1d0b6b6SChristian Vogel 138d1d0b6b6SChristian Vogel if (id >= clk_spec->num) { 139d1d0b6b6SChristian Vogel dev_err(&bebob->unit->device, 140d1d0b6b6SChristian Vogel "clock source %d out of range 0..%d\n", 141d1d0b6b6SChristian Vogel id, clk_spec->num - 1); 142d1d0b6b6SChristian Vogel err = -EIO; 143d1d0b6b6SChristian Vogel goto end; 144d1d0b6b6SChristian Vogel } 145d1d0b6b6SChristian Vogel 1463e254b16STakashi Sakamoto *src = clk_spec->types[id]; 1471fc9522aSTakashi Sakamoto goto end; 1481fc9522aSTakashi Sakamoto } 1491fc9522aSTakashi Sakamoto 150eb7b3a05STakashi Sakamoto /* 1511fc9522aSTakashi Sakamoto * 2.The device don't support to switch source of clock then assumed 152eb7b3a05STakashi Sakamoto * to use internal clock always 153eb7b3a05STakashi Sakamoto */ 154eb7b3a05STakashi Sakamoto if (bebob->sync_input_plug < 0) { 1553e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_INTERNAL; 156eb7b3a05STakashi Sakamoto goto end; 157eb7b3a05STakashi Sakamoto } 158eb7b3a05STakashi Sakamoto 159eb7b3a05STakashi Sakamoto /* 1601fc9522aSTakashi Sakamoto * 3.The device supports to switch source of clock by an usual way. 161eb7b3a05STakashi Sakamoto * Let's check input for 'Music Sub Unit Sync Input' plug. 162eb7b3a05STakashi Sakamoto */ 163eb7b3a05STakashi Sakamoto avc_bridgeco_fill_msu_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, 164eb7b3a05STakashi Sakamoto bebob->sync_input_plug); 165eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_input(bebob->unit, addr, input); 166eb7b3a05STakashi Sakamoto if (err < 0) { 167eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 168eb7b3a05STakashi Sakamoto "fail to get an input for MSU in plug %d: %d\n", 169eb7b3a05STakashi Sakamoto bebob->sync_input_plug, err); 170eb7b3a05STakashi Sakamoto goto end; 171eb7b3a05STakashi Sakamoto } 172eb7b3a05STakashi Sakamoto 173eb7b3a05STakashi Sakamoto /* 174eb7b3a05STakashi Sakamoto * If there are no input plugs, all of fields are 0xff. 175eb7b3a05STakashi Sakamoto * Here check the first field. This field is used for direction. 176eb7b3a05STakashi Sakamoto */ 177eb7b3a05STakashi Sakamoto if (input[0] == 0xff) { 1783e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_INTERNAL; 179eb7b3a05STakashi Sakamoto goto end; 180eb7b3a05STakashi Sakamoto } 181eb7b3a05STakashi Sakamoto 1825a668812STakashi Sakamoto /* The source from any output plugs is for one purpose only. */ 1835a668812STakashi Sakamoto if (input[0] == AVC_BRIDGECO_PLUG_DIR_OUT) { 184eb7b3a05STakashi Sakamoto /* 1855a668812STakashi Sakamoto * In BeBoB architecture, the source from music subunit may 1865a668812STakashi Sakamoto * bypass from oPCR[0]. This means that this source gives 1875a668812STakashi Sakamoto * synchronization to IEEE 1394 cycle start packet. 188eb7b3a05STakashi Sakamoto */ 1895a668812STakashi Sakamoto if (input[1] == AVC_BRIDGECO_PLUG_MODE_SUBUNIT && 1905a668812STakashi Sakamoto input[2] == 0x0c) { 1913e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_INTERNAL; 1925a668812STakashi Sakamoto goto end; 1935a668812STakashi Sakamoto } 1945a668812STakashi Sakamoto /* The source from any input units is for several purposes. */ 1955a668812STakashi Sakamoto } else if (input[1] == AVC_BRIDGECO_PLUG_MODE_UNIT) { 1965a668812STakashi Sakamoto if (input[2] == AVC_BRIDGECO_PLUG_UNIT_ISOC) { 1975a668812STakashi Sakamoto if (input[3] == 0x00) { 1985a668812STakashi Sakamoto /* 1995a668812STakashi Sakamoto * This source comes from iPCR[0]. This means 2005a668812STakashi Sakamoto * that presentation timestamp calculated by 2015a668812STakashi Sakamoto * SYT series of the received packets. In 2025a668812STakashi Sakamoto * short, this driver is the master of 2035a668812STakashi Sakamoto * synchronization. 2045a668812STakashi Sakamoto */ 2053e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_SYT; 2065a668812STakashi Sakamoto goto end; 2075a668812STakashi Sakamoto } else { 2085a668812STakashi Sakamoto /* 2095a668812STakashi Sakamoto * This source comes from iPCR[1-29]. This 2105a668812STakashi Sakamoto * means that the synchronization stream is not 2115a668812STakashi Sakamoto * the Audio/MIDI compound stream. 2125a668812STakashi Sakamoto */ 2133e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_EXTERNAL; 2145a668812STakashi Sakamoto goto end; 2155a668812STakashi Sakamoto } 2165a668812STakashi Sakamoto } else if (input[2] == AVC_BRIDGECO_PLUG_UNIT_EXT) { 2175a668812STakashi Sakamoto /* Check type of this plug. */ 2185a668812STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, 2195a668812STakashi Sakamoto AVC_BRIDGECO_PLUG_DIR_IN, 2205a668812STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_EXT, 2215a668812STakashi Sakamoto input[3]); 2225a668812STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, 2235a668812STakashi Sakamoto &type); 2245a668812STakashi Sakamoto if (err < 0) 2255a668812STakashi Sakamoto goto end; 2265a668812STakashi Sakamoto 2275a668812STakashi Sakamoto if (type == AVC_BRIDGECO_PLUG_TYPE_DIG) { 2285a668812STakashi Sakamoto /* 2295a668812STakashi Sakamoto * SPDIF/ADAT or sometimes (not always) word 2305a668812STakashi Sakamoto * clock. 2315a668812STakashi Sakamoto */ 2323e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_EXTERNAL; 2335a668812STakashi Sakamoto goto end; 2345a668812STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_SYNC) { 2355a668812STakashi Sakamoto /* Often word clock. */ 2363e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_EXTERNAL; 2375a668812STakashi Sakamoto goto end; 2385a668812STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_ADDITION) { 2395a668812STakashi Sakamoto /* 2405a668812STakashi Sakamoto * Not standard. 2415a668812STakashi Sakamoto * Mostly, additional internal clock. 2425a668812STakashi Sakamoto */ 2433e254b16STakashi Sakamoto *src = SND_BEBOB_CLOCK_TYPE_INTERNAL; 2445a668812STakashi Sakamoto goto end; 2455a668812STakashi Sakamoto } 2465a668812STakashi Sakamoto } 2475a668812STakashi Sakamoto } 2485a668812STakashi Sakamoto 2495a668812STakashi Sakamoto /* Not supported. */ 2505a668812STakashi Sakamoto err = -EIO; 251eb7b3a05STakashi Sakamoto end: 252eb7b3a05STakashi Sakamoto return err; 253eb7b3a05STakashi Sakamoto } 254eb7b3a05STakashi Sakamoto 255eb7b3a05STakashi Sakamoto static unsigned int 256eb7b3a05STakashi Sakamoto map_data_channels(struct snd_bebob *bebob, struct amdtp_stream *s) 257eb7b3a05STakashi Sakamoto { 258eb7b3a05STakashi Sakamoto unsigned int sec, sections, ch, channels; 259eb7b3a05STakashi Sakamoto unsigned int pcm, midi, location; 260eb7b3a05STakashi Sakamoto unsigned int stm_pos, sec_loc, pos; 261eb7b3a05STakashi Sakamoto u8 *buf, addr[AVC_BRIDGECO_ADDR_BYTES], type; 262eb7b3a05STakashi Sakamoto enum avc_bridgeco_plug_dir dir; 263eb7b3a05STakashi Sakamoto int err; 264eb7b3a05STakashi Sakamoto 265eb7b3a05STakashi Sakamoto /* 266eb7b3a05STakashi Sakamoto * The length of return value of this command cannot be expected. Here 267eb7b3a05STakashi Sakamoto * use the maximum length of FCP. 268eb7b3a05STakashi Sakamoto */ 269eb7b3a05STakashi Sakamoto buf = kzalloc(256, GFP_KERNEL); 270eb7b3a05STakashi Sakamoto if (buf == NULL) 271eb7b3a05STakashi Sakamoto return -ENOMEM; 272eb7b3a05STakashi Sakamoto 273eb7b3a05STakashi Sakamoto if (s == &bebob->tx_stream) 274eb7b3a05STakashi Sakamoto dir = AVC_BRIDGECO_PLUG_DIR_OUT; 275eb7b3a05STakashi Sakamoto else 276eb7b3a05STakashi Sakamoto dir = AVC_BRIDGECO_PLUG_DIR_IN; 277eb7b3a05STakashi Sakamoto 278eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, dir, AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 279eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_ch_pos(bebob->unit, addr, buf, 256); 280eb7b3a05STakashi Sakamoto if (err < 0) { 281eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 282eb7b3a05STakashi Sakamoto "fail to get channel position for isoc %s plug 0: %d\n", 283eb7b3a05STakashi Sakamoto (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : "out", 284eb7b3a05STakashi Sakamoto err); 285eb7b3a05STakashi Sakamoto goto end; 286eb7b3a05STakashi Sakamoto } 287eb7b3a05STakashi Sakamoto pos = 0; 288eb7b3a05STakashi Sakamoto 289eb7b3a05STakashi Sakamoto /* positions in I/O buffer */ 290eb7b3a05STakashi Sakamoto pcm = 0; 291eb7b3a05STakashi Sakamoto midi = 0; 292eb7b3a05STakashi Sakamoto 293eb7b3a05STakashi Sakamoto /* the number of sections in AMDTP packet */ 294eb7b3a05STakashi Sakamoto sections = buf[pos++]; 295eb7b3a05STakashi Sakamoto 296eb7b3a05STakashi Sakamoto for (sec = 0; sec < sections; sec++) { 297eb7b3a05STakashi Sakamoto /* type of this section */ 298eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, dir, 299eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 300eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_section_type(bebob->unit, addr, 301eb7b3a05STakashi Sakamoto sec, &type); 302eb7b3a05STakashi Sakamoto if (err < 0) { 303eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 304eb7b3a05STakashi Sakamoto "fail to get section type for isoc %s plug 0: %d\n", 305eb7b3a05STakashi Sakamoto (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : 306eb7b3a05STakashi Sakamoto "out", 307eb7b3a05STakashi Sakamoto err); 308eb7b3a05STakashi Sakamoto goto end; 309eb7b3a05STakashi Sakamoto } 310eb7b3a05STakashi Sakamoto /* NoType */ 311eb7b3a05STakashi Sakamoto if (type == 0xff) { 312eb7b3a05STakashi Sakamoto err = -ENOSYS; 313eb7b3a05STakashi Sakamoto goto end; 314eb7b3a05STakashi Sakamoto } 315eb7b3a05STakashi Sakamoto 316eb7b3a05STakashi Sakamoto /* the number of channels in this section */ 317eb7b3a05STakashi Sakamoto channels = buf[pos++]; 318eb7b3a05STakashi Sakamoto 319eb7b3a05STakashi Sakamoto for (ch = 0; ch < channels; ch++) { 320eb7b3a05STakashi Sakamoto /* position of this channel in AMDTP packet */ 321eb7b3a05STakashi Sakamoto stm_pos = buf[pos++] - 1; 322eb7b3a05STakashi Sakamoto /* location of this channel in this section */ 323eb7b3a05STakashi Sakamoto sec_loc = buf[pos++] - 1; 324eb7b3a05STakashi Sakamoto 3259076c22dSTakashi Sakamoto /* 3269076c22dSTakashi Sakamoto * Basically the number of location is within the 3279076c22dSTakashi Sakamoto * number of channels in this section. But some models 3289076c22dSTakashi Sakamoto * of M-Audio don't follow this. Its location for MIDI 3299076c22dSTakashi Sakamoto * is the position of MIDI channels in AMDTP packet. 3309076c22dSTakashi Sakamoto */ 3319076c22dSTakashi Sakamoto if (sec_loc >= channels) 3329076c22dSTakashi Sakamoto sec_loc = ch; 3339076c22dSTakashi Sakamoto 334eb7b3a05STakashi Sakamoto switch (type) { 335eb7b3a05STakashi Sakamoto /* for MIDI conformant data channel */ 336eb7b3a05STakashi Sakamoto case 0x0a: 337eb7b3a05STakashi Sakamoto /* AMDTP_MAX_CHANNELS_FOR_MIDI is 1. */ 338eb7b3a05STakashi Sakamoto if ((midi > 0) && (stm_pos != midi)) { 339eb7b3a05STakashi Sakamoto err = -ENOSYS; 340eb7b3a05STakashi Sakamoto goto end; 341eb7b3a05STakashi Sakamoto } 342f65be911STakashi Sakamoto amdtp_am824_set_midi_position(s, stm_pos); 343eb7b3a05STakashi Sakamoto midi = stm_pos; 344eb7b3a05STakashi Sakamoto break; 345eb7b3a05STakashi Sakamoto /* for PCM data channel */ 346eb7b3a05STakashi Sakamoto case 0x01: /* Headphone */ 347eb7b3a05STakashi Sakamoto case 0x02: /* Microphone */ 348eb7b3a05STakashi Sakamoto case 0x03: /* Line */ 349eb7b3a05STakashi Sakamoto case 0x04: /* SPDIF */ 350eb7b3a05STakashi Sakamoto case 0x05: /* ADAT */ 351eb7b3a05STakashi Sakamoto case 0x06: /* TDIF */ 352eb7b3a05STakashi Sakamoto case 0x07: /* MADI */ 353eb7b3a05STakashi Sakamoto /* for undefined/changeable signal */ 354eb7b3a05STakashi Sakamoto case 0x08: /* Analog */ 355eb7b3a05STakashi Sakamoto case 0x09: /* Digital */ 356eb7b3a05STakashi Sakamoto default: 357eb7b3a05STakashi Sakamoto location = pcm + sec_loc; 35849c7b3fcSTakashi Sakamoto if (location >= AM824_MAX_CHANNELS_FOR_PCM) { 359eb7b3a05STakashi Sakamoto err = -ENOSYS; 360eb7b3a05STakashi Sakamoto goto end; 361eb7b3a05STakashi Sakamoto } 362f65be911STakashi Sakamoto amdtp_am824_set_pcm_position(s, location, 363f65be911STakashi Sakamoto stm_pos); 364eb7b3a05STakashi Sakamoto break; 365eb7b3a05STakashi Sakamoto } 366eb7b3a05STakashi Sakamoto } 367eb7b3a05STakashi Sakamoto 368eb7b3a05STakashi Sakamoto if (type != 0x0a) 369eb7b3a05STakashi Sakamoto pcm += channels; 370eb7b3a05STakashi Sakamoto else 371eb7b3a05STakashi Sakamoto midi += channels; 372eb7b3a05STakashi Sakamoto } 373eb7b3a05STakashi Sakamoto end: 374eb7b3a05STakashi Sakamoto kfree(buf); 375eb7b3a05STakashi Sakamoto return err; 376eb7b3a05STakashi Sakamoto } 377eb7b3a05STakashi Sakamoto 378eb7b3a05STakashi Sakamoto static int 379eb7b3a05STakashi Sakamoto init_both_connections(struct snd_bebob *bebob) 380eb7b3a05STakashi Sakamoto { 381eb7b3a05STakashi Sakamoto int err; 382eb7b3a05STakashi Sakamoto 383eb7b3a05STakashi Sakamoto err = cmp_connection_init(&bebob->in_conn, 384eb7b3a05STakashi Sakamoto bebob->unit, CMP_INPUT, 0); 385eb7b3a05STakashi Sakamoto if (err < 0) 386eb7b3a05STakashi Sakamoto goto end; 387eb7b3a05STakashi Sakamoto 388eb7b3a05STakashi Sakamoto err = cmp_connection_init(&bebob->out_conn, 389eb7b3a05STakashi Sakamoto bebob->unit, CMP_OUTPUT, 0); 390eb7b3a05STakashi Sakamoto if (err < 0) 391eb7b3a05STakashi Sakamoto cmp_connection_destroy(&bebob->in_conn); 392eb7b3a05STakashi Sakamoto end: 393eb7b3a05STakashi Sakamoto return err; 394eb7b3a05STakashi Sakamoto } 395eb7b3a05STakashi Sakamoto 396eb7b3a05STakashi Sakamoto static int 397eb7b3a05STakashi Sakamoto check_connection_used_by_others(struct snd_bebob *bebob, struct amdtp_stream *s) 398eb7b3a05STakashi Sakamoto { 399eb7b3a05STakashi Sakamoto struct cmp_connection *conn; 400eb7b3a05STakashi Sakamoto bool used; 401eb7b3a05STakashi Sakamoto int err; 402eb7b3a05STakashi Sakamoto 403eb7b3a05STakashi Sakamoto if (s == &bebob->tx_stream) 404eb7b3a05STakashi Sakamoto conn = &bebob->out_conn; 405eb7b3a05STakashi Sakamoto else 406eb7b3a05STakashi Sakamoto conn = &bebob->in_conn; 407eb7b3a05STakashi Sakamoto 408eb7b3a05STakashi Sakamoto err = cmp_connection_check_used(conn, &used); 409eb7b3a05STakashi Sakamoto if ((err >= 0) && used && !amdtp_stream_running(s)) { 410eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 411eb7b3a05STakashi Sakamoto "Connection established by others: %cPCR[%d]\n", 412eb7b3a05STakashi Sakamoto (conn->direction == CMP_OUTPUT) ? 'o' : 'i', 413eb7b3a05STakashi Sakamoto conn->pcr_index); 414eb7b3a05STakashi Sakamoto err = -EBUSY; 415eb7b3a05STakashi Sakamoto } 416eb7b3a05STakashi Sakamoto 417eb7b3a05STakashi Sakamoto return err; 418eb7b3a05STakashi Sakamoto } 419eb7b3a05STakashi Sakamoto 420eb7b3a05STakashi Sakamoto static int 421eb7b3a05STakashi Sakamoto make_both_connections(struct snd_bebob *bebob, unsigned int rate) 422eb7b3a05STakashi Sakamoto { 423b6bc8123STakashi Sakamoto int index, pcm_channels, midi_channels, err = 0; 424b6bc8123STakashi Sakamoto 425b6bc8123STakashi Sakamoto if (bebob->connected) 426b6bc8123STakashi Sakamoto goto end; 427eb7b3a05STakashi Sakamoto 428eb7b3a05STakashi Sakamoto /* confirm params for both streams */ 42907905298SLucas Tanure err = get_formation_index(rate, &index); 43007905298SLucas Tanure if (err < 0) 43107905298SLucas Tanure goto end; 432eb7b3a05STakashi Sakamoto pcm_channels = bebob->tx_stream_formations[index].pcm; 433eb7b3a05STakashi Sakamoto midi_channels = bebob->tx_stream_formations[index].midi; 43451c29fd2STakashi Sakamoto err = amdtp_am824_set_parameters(&bebob->tx_stream, rate, 43527ec83b5STakashi Sakamoto pcm_channels, midi_channels * 8, 43627ec83b5STakashi Sakamoto false); 437547e631cSTakashi Sakamoto if (err < 0) 438547e631cSTakashi Sakamoto goto end; 439547e631cSTakashi Sakamoto 440eb7b3a05STakashi Sakamoto pcm_channels = bebob->rx_stream_formations[index].pcm; 441eb7b3a05STakashi Sakamoto midi_channels = bebob->rx_stream_formations[index].midi; 44251c29fd2STakashi Sakamoto err = amdtp_am824_set_parameters(&bebob->rx_stream, rate, 44327ec83b5STakashi Sakamoto pcm_channels, midi_channels * 8, 44427ec83b5STakashi Sakamoto false); 445547e631cSTakashi Sakamoto if (err < 0) 446547e631cSTakashi Sakamoto goto end; 447eb7b3a05STakashi Sakamoto 448eb7b3a05STakashi Sakamoto /* establish connections for both streams */ 449eb7b3a05STakashi Sakamoto err = cmp_connection_establish(&bebob->out_conn, 450eb7b3a05STakashi Sakamoto amdtp_stream_get_max_payload(&bebob->tx_stream)); 451eb7b3a05STakashi Sakamoto if (err < 0) 452eb7b3a05STakashi Sakamoto goto end; 453eb7b3a05STakashi Sakamoto err = cmp_connection_establish(&bebob->in_conn, 454eb7b3a05STakashi Sakamoto amdtp_stream_get_max_payload(&bebob->rx_stream)); 455b6bc8123STakashi Sakamoto if (err < 0) { 456eb7b3a05STakashi Sakamoto cmp_connection_break(&bebob->out_conn); 457b6bc8123STakashi Sakamoto goto end; 458b6bc8123STakashi Sakamoto } 459b6bc8123STakashi Sakamoto 460b6bc8123STakashi Sakamoto bebob->connected = true; 461eb7b3a05STakashi Sakamoto end: 462eb7b3a05STakashi Sakamoto return err; 463eb7b3a05STakashi Sakamoto } 464eb7b3a05STakashi Sakamoto 465eb7b3a05STakashi Sakamoto static void 466eb7b3a05STakashi Sakamoto break_both_connections(struct snd_bebob *bebob) 467eb7b3a05STakashi Sakamoto { 468eb7b3a05STakashi Sakamoto cmp_connection_break(&bebob->in_conn); 469eb7b3a05STakashi Sakamoto cmp_connection_break(&bebob->out_conn); 470b6bc8123STakashi Sakamoto 471b6bc8123STakashi Sakamoto bebob->connected = false; 4723149ac48STakashi Sakamoto 4733149ac48STakashi Sakamoto /* These models seems to be in transition state for a longer time. */ 4743149ac48STakashi Sakamoto if (bebob->maudio_special_quirk != NULL) 4753149ac48STakashi Sakamoto msleep(200); 476eb7b3a05STakashi Sakamoto } 477eb7b3a05STakashi Sakamoto 478eb7b3a05STakashi Sakamoto static void 479eb7b3a05STakashi Sakamoto destroy_both_connections(struct snd_bebob *bebob) 480eb7b3a05STakashi Sakamoto { 481eb7b3a05STakashi Sakamoto cmp_connection_destroy(&bebob->in_conn); 482eb7b3a05STakashi Sakamoto cmp_connection_destroy(&bebob->out_conn); 483eb7b3a05STakashi Sakamoto } 484eb7b3a05STakashi Sakamoto 485eb7b3a05STakashi Sakamoto static int 486eb7b3a05STakashi Sakamoto start_stream(struct snd_bebob *bebob, struct amdtp_stream *stream, 487eb7b3a05STakashi Sakamoto unsigned int rate) 488eb7b3a05STakashi Sakamoto { 489eb7b3a05STakashi Sakamoto struct cmp_connection *conn; 490eb7b3a05STakashi Sakamoto int err = 0; 491eb7b3a05STakashi Sakamoto 492eb7b3a05STakashi Sakamoto if (stream == &bebob->rx_stream) 493eb7b3a05STakashi Sakamoto conn = &bebob->in_conn; 494eb7b3a05STakashi Sakamoto else 495eb7b3a05STakashi Sakamoto conn = &bebob->out_conn; 496eb7b3a05STakashi Sakamoto 497eb7b3a05STakashi Sakamoto /* channel mapping */ 4983149ac48STakashi Sakamoto if (bebob->maudio_special_quirk == NULL) { 499eb7b3a05STakashi Sakamoto err = map_data_channels(bebob, stream); 500eb7b3a05STakashi Sakamoto if (err < 0) 501eb7b3a05STakashi Sakamoto goto end; 5023149ac48STakashi Sakamoto } 503eb7b3a05STakashi Sakamoto 504eb7b3a05STakashi Sakamoto /* start amdtp stream */ 505eb7b3a05STakashi Sakamoto err = amdtp_stream_start(stream, 506eb7b3a05STakashi Sakamoto conn->resources.channel, 507eb7b3a05STakashi Sakamoto conn->speed); 508eb7b3a05STakashi Sakamoto end: 509eb7b3a05STakashi Sakamoto return err; 510eb7b3a05STakashi Sakamoto } 511eb7b3a05STakashi Sakamoto 512eb7b3a05STakashi Sakamoto int snd_bebob_stream_init_duplex(struct snd_bebob *bebob) 513eb7b3a05STakashi Sakamoto { 514eb7b3a05STakashi Sakamoto int err; 515eb7b3a05STakashi Sakamoto 516eb7b3a05STakashi Sakamoto err = init_both_connections(bebob); 517eb7b3a05STakashi Sakamoto if (err < 0) 518eb7b3a05STakashi Sakamoto goto end; 519eb7b3a05STakashi Sakamoto 5205955815eSTakashi Sakamoto err = amdtp_am824_init(&bebob->tx_stream, bebob->unit, 521eb7b3a05STakashi Sakamoto AMDTP_IN_STREAM, CIP_BLOCKING); 522eb7b3a05STakashi Sakamoto if (err < 0) { 523eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->tx_stream); 524eb7b3a05STakashi Sakamoto destroy_both_connections(bebob); 525eb7b3a05STakashi Sakamoto goto end; 526eb7b3a05STakashi Sakamoto } 52714a37ac1STakashi Sakamoto 528c4d860a0STakashi Sakamoto /* 529c4d860a0STakashi Sakamoto * BeBoB v3 transfers packets with these qurks: 530c4d860a0STakashi Sakamoto * - In the beginning of streaming, the value of dbc is incremented 531c4d860a0STakashi Sakamoto * even if no data blocks are transferred. 532c4d860a0STakashi Sakamoto * - The value of dbc is reset suddenly. 533c4d860a0STakashi Sakamoto */ 534c4d860a0STakashi Sakamoto if (bebob->version > 2) 535c4d860a0STakashi Sakamoto bebob->tx_stream.flags |= CIP_EMPTY_HAS_WRONG_DBC | 536c4d860a0STakashi Sakamoto CIP_SKIP_DBC_ZERO_CHECK; 537c4d860a0STakashi Sakamoto 5389d59124cSTakashi Sakamoto /* 5399d59124cSTakashi Sakamoto * At high sampling rate, M-Audio special firmware transmits empty 5409d59124cSTakashi Sakamoto * packet with the value of dbc incremented by 8 but the others are 5419d59124cSTakashi Sakamoto * valid to IEC 61883-1. 5429d59124cSTakashi Sakamoto */ 5439d59124cSTakashi Sakamoto if (bebob->maudio_special_quirk) 5449d59124cSTakashi Sakamoto bebob->tx_stream.flags |= CIP_EMPTY_HAS_WRONG_DBC; 545eb7b3a05STakashi Sakamoto 5465955815eSTakashi Sakamoto err = amdtp_am824_init(&bebob->rx_stream, bebob->unit, 547eb7b3a05STakashi Sakamoto AMDTP_OUT_STREAM, CIP_BLOCKING); 548eb7b3a05STakashi Sakamoto if (err < 0) { 549eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->tx_stream); 550eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->rx_stream); 551eb7b3a05STakashi Sakamoto destroy_both_connections(bebob); 552eb7b3a05STakashi Sakamoto } 553eb7b3a05STakashi Sakamoto end: 554eb7b3a05STakashi Sakamoto return err; 555eb7b3a05STakashi Sakamoto } 556eb7b3a05STakashi Sakamoto 5574a286d55STakashi Sakamoto int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, unsigned int rate) 558eb7b3a05STakashi Sakamoto { 5596b9866c8SJulia Lawall const struct snd_bebob_rate_spec *rate_spec = bebob->spec->rate; 560eb7b3a05STakashi Sakamoto unsigned int curr_rate; 561eb7b3a05STakashi Sakamoto int err = 0; 562eb7b3a05STakashi Sakamoto 563eb7b3a05STakashi Sakamoto /* Need no substreams */ 5644fd6c6c7STakashi Sakamoto if (bebob->substreams_counter == 0) 565eb7b3a05STakashi Sakamoto goto end; 566eb7b3a05STakashi Sakamoto 567eb7b3a05STakashi Sakamoto /* 568eb7b3a05STakashi Sakamoto * Considering JACK/FFADO streaming: 569eb7b3a05STakashi Sakamoto * TODO: This can be removed hwdep functionality becomes popular. 570eb7b3a05STakashi Sakamoto */ 571c71283cbSTakashi Sakamoto err = check_connection_used_by_others(bebob, &bebob->rx_stream); 572eb7b3a05STakashi Sakamoto if (err < 0) 573eb7b3a05STakashi Sakamoto goto end; 574eb7b3a05STakashi Sakamoto 575b6bc8123STakashi Sakamoto /* 576b6bc8123STakashi Sakamoto * packet queueing error or detecting discontinuity 577b6bc8123STakashi Sakamoto * 578b6bc8123STakashi Sakamoto * At bus reset, connections should not be broken here. So streams need 579b6bc8123STakashi Sakamoto * to be re-started. This is a reason to use SKIP_INIT_DBC_CHECK flag. 580b6bc8123STakashi Sakamoto */ 581c71283cbSTakashi Sakamoto if (amdtp_streaming_error(&bebob->rx_stream)) 582c71283cbSTakashi Sakamoto amdtp_stream_stop(&bebob->rx_stream); 583c71283cbSTakashi Sakamoto if (amdtp_streaming_error(&bebob->tx_stream)) 584c71283cbSTakashi Sakamoto amdtp_stream_stop(&bebob->tx_stream); 585c71283cbSTakashi Sakamoto if (!amdtp_stream_running(&bebob->rx_stream) && 586c71283cbSTakashi Sakamoto !amdtp_stream_running(&bebob->tx_stream)) 587b6bc8123STakashi Sakamoto break_both_connections(bebob); 588eb7b3a05STakashi Sakamoto 589eb7b3a05STakashi Sakamoto /* stop streams if rate is different */ 5901fc9522aSTakashi Sakamoto err = rate_spec->get(bebob, &curr_rate); 591eb7b3a05STakashi Sakamoto if (err < 0) { 592eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 593eb7b3a05STakashi Sakamoto "fail to get sampling rate: %d\n", err); 594eb7b3a05STakashi Sakamoto goto end; 595eb7b3a05STakashi Sakamoto } 596eb7b3a05STakashi Sakamoto if (rate == 0) 597eb7b3a05STakashi Sakamoto rate = curr_rate; 598eb7b3a05STakashi Sakamoto if (rate != curr_rate) { 599c71283cbSTakashi Sakamoto amdtp_stream_stop(&bebob->rx_stream); 600c71283cbSTakashi Sakamoto amdtp_stream_stop(&bebob->tx_stream); 601eb7b3a05STakashi Sakamoto break_both_connections(bebob); 602eb7b3a05STakashi Sakamoto } 603eb7b3a05STakashi Sakamoto 604eb7b3a05STakashi Sakamoto /* master should be always running */ 605c71283cbSTakashi Sakamoto if (!amdtp_stream_running(&bebob->rx_stream)) { 606eb7b3a05STakashi Sakamoto /* 607eb7b3a05STakashi Sakamoto * NOTE: 608eb7b3a05STakashi Sakamoto * If establishing connections at first, Yamaha GO46 609eb7b3a05STakashi Sakamoto * (and maybe Terratec X24) don't generate sound. 6103149ac48STakashi Sakamoto * 6113149ac48STakashi Sakamoto * For firmware customized by M-Audio, refer to next NOTE. 612eb7b3a05STakashi Sakamoto */ 6133149ac48STakashi Sakamoto if (bebob->maudio_special_quirk == NULL) { 6141fc9522aSTakashi Sakamoto err = rate_spec->set(bebob, rate); 615eb7b3a05STakashi Sakamoto if (err < 0) { 616eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 617eb7b3a05STakashi Sakamoto "fail to set sampling rate: %d\n", 618eb7b3a05STakashi Sakamoto err); 619eb7b3a05STakashi Sakamoto goto end; 620eb7b3a05STakashi Sakamoto } 6213149ac48STakashi Sakamoto } 622eb7b3a05STakashi Sakamoto 623eb7b3a05STakashi Sakamoto err = make_both_connections(bebob, rate); 624eb7b3a05STakashi Sakamoto if (err < 0) 625eb7b3a05STakashi Sakamoto goto end; 626eb7b3a05STakashi Sakamoto 627c71283cbSTakashi Sakamoto err = start_stream(bebob, &bebob->rx_stream, rate); 628eb7b3a05STakashi Sakamoto if (err < 0) { 629eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 630eb7b3a05STakashi Sakamoto "fail to run AMDTP master stream:%d\n", err); 631eb7b3a05STakashi Sakamoto break_both_connections(bebob); 632eb7b3a05STakashi Sakamoto goto end; 633eb7b3a05STakashi Sakamoto } 634eb7b3a05STakashi Sakamoto 6353149ac48STakashi Sakamoto /* 6363149ac48STakashi Sakamoto * NOTE: 6373149ac48STakashi Sakamoto * The firmware customized by M-Audio uses these commands to 6383149ac48STakashi Sakamoto * start transmitting stream. This is not usual way. 6393149ac48STakashi Sakamoto */ 6403149ac48STakashi Sakamoto if (bebob->maudio_special_quirk != NULL) { 6413149ac48STakashi Sakamoto err = rate_spec->set(bebob, rate); 6423149ac48STakashi Sakamoto if (err < 0) { 6433149ac48STakashi Sakamoto dev_err(&bebob->unit->device, 6443149ac48STakashi Sakamoto "fail to ensure sampling rate: %d\n", 6453149ac48STakashi Sakamoto err); 646c71283cbSTakashi Sakamoto amdtp_stream_stop(&bebob->rx_stream); 6473149ac48STakashi Sakamoto break_both_connections(bebob); 6483149ac48STakashi Sakamoto goto end; 6493149ac48STakashi Sakamoto } 6503149ac48STakashi Sakamoto } 6513149ac48STakashi Sakamoto 652eb7b3a05STakashi Sakamoto /* wait first callback */ 653c71283cbSTakashi Sakamoto if (!amdtp_stream_wait_callback(&bebob->rx_stream, 654c71283cbSTakashi Sakamoto CALLBACK_TIMEOUT)) { 655c71283cbSTakashi Sakamoto amdtp_stream_stop(&bebob->rx_stream); 656eb7b3a05STakashi Sakamoto break_both_connections(bebob); 657eb7b3a05STakashi Sakamoto err = -ETIMEDOUT; 658eb7b3a05STakashi Sakamoto goto end; 659eb7b3a05STakashi Sakamoto } 660eb7b3a05STakashi Sakamoto } 661eb7b3a05STakashi Sakamoto 662eb7b3a05STakashi Sakamoto /* start slave if needed */ 663c71283cbSTakashi Sakamoto if (!amdtp_stream_running(&bebob->tx_stream)) { 664c71283cbSTakashi Sakamoto err = start_stream(bebob, &bebob->tx_stream, rate); 665eb7b3a05STakashi Sakamoto if (err < 0) { 666eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 667eb7b3a05STakashi Sakamoto "fail to run AMDTP slave stream:%d\n", err); 668c71283cbSTakashi Sakamoto amdtp_stream_stop(&bebob->rx_stream); 669eb7b3a05STakashi Sakamoto break_both_connections(bebob); 670eb7b3a05STakashi Sakamoto goto end; 671eb7b3a05STakashi Sakamoto } 672eb7b3a05STakashi Sakamoto 673eb7b3a05STakashi Sakamoto /* wait first callback */ 674c71283cbSTakashi Sakamoto if (!amdtp_stream_wait_callback(&bebob->tx_stream, 675c71283cbSTakashi Sakamoto CALLBACK_TIMEOUT)) { 676c71283cbSTakashi Sakamoto amdtp_stream_stop(&bebob->tx_stream); 677c71283cbSTakashi Sakamoto amdtp_stream_stop(&bebob->rx_stream); 678eb7b3a05STakashi Sakamoto break_both_connections(bebob); 679eb7b3a05STakashi Sakamoto err = -ETIMEDOUT; 680eb7b3a05STakashi Sakamoto } 681eb7b3a05STakashi Sakamoto } 682eb7b3a05STakashi Sakamoto end: 683eb7b3a05STakashi Sakamoto return err; 684eb7b3a05STakashi Sakamoto } 685eb7b3a05STakashi Sakamoto 686eb7b3a05STakashi Sakamoto void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob) 687eb7b3a05STakashi Sakamoto { 6884fd6c6c7STakashi Sakamoto if (bebob->substreams_counter == 0) { 689c71283cbSTakashi Sakamoto amdtp_stream_pcm_abort(&bebob->rx_stream); 690c71283cbSTakashi Sakamoto amdtp_stream_stop(&bebob->rx_stream); 6918d1c2694STakashi Sakamoto 692c71283cbSTakashi Sakamoto amdtp_stream_pcm_abort(&bebob->tx_stream); 693c71283cbSTakashi Sakamoto amdtp_stream_stop(&bebob->tx_stream); 694eb7b3a05STakashi Sakamoto 695eb7b3a05STakashi Sakamoto break_both_connections(bebob); 696eb7b3a05STakashi Sakamoto } 697eb7b3a05STakashi Sakamoto } 698eb7b3a05STakashi Sakamoto 699d23c2cc4STakashi Sakamoto /* 700d23c2cc4STakashi Sakamoto * This function should be called before starting streams or after stopping 701d23c2cc4STakashi Sakamoto * streams. 702d23c2cc4STakashi Sakamoto */ 703eb7b3a05STakashi Sakamoto void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob) 704eb7b3a05STakashi Sakamoto { 705eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->rx_stream); 706eb7b3a05STakashi Sakamoto amdtp_stream_destroy(&bebob->tx_stream); 707eb7b3a05STakashi Sakamoto 708eb7b3a05STakashi Sakamoto destroy_both_connections(bebob); 709eb7b3a05STakashi Sakamoto } 710eb7b3a05STakashi Sakamoto 711eb7b3a05STakashi Sakamoto /* 712eb7b3a05STakashi Sakamoto * See: Table 50: Extended Stream Format Info Format Hierarchy Level 2’ 713eb7b3a05STakashi Sakamoto * in Additional AVC commands (Nov 2003, BridgeCo) 714eb7b3a05STakashi Sakamoto * Also 'Clause 12 AM824 sequence adaption layers' in IEC 61883-6:2005 715eb7b3a05STakashi Sakamoto */ 716eb7b3a05STakashi Sakamoto static int 717eb7b3a05STakashi Sakamoto parse_stream_formation(u8 *buf, unsigned int len, 718eb7b3a05STakashi Sakamoto struct snd_bebob_stream_formation *formation) 719eb7b3a05STakashi Sakamoto { 720eb7b3a05STakashi Sakamoto unsigned int i, e, channels, format; 721eb7b3a05STakashi Sakamoto 722eb7b3a05STakashi Sakamoto /* 723eb7b3a05STakashi Sakamoto * this module can support a hierarchy combination that: 724eb7b3a05STakashi Sakamoto * Root: Audio and Music (0x90) 725eb7b3a05STakashi Sakamoto * Level 1: AM824 Compound (0x40) 726eb7b3a05STakashi Sakamoto */ 727eb7b3a05STakashi Sakamoto if ((buf[0] != 0x90) || (buf[1] != 0x40)) 728eb7b3a05STakashi Sakamoto return -ENOSYS; 729eb7b3a05STakashi Sakamoto 730eb7b3a05STakashi Sakamoto /* check sampling rate */ 731eb7b3a05STakashi Sakamoto for (i = 0; i < ARRAY_SIZE(bridgeco_freq_table); i++) { 732eb7b3a05STakashi Sakamoto if (buf[2] == bridgeco_freq_table[i]) 733eb7b3a05STakashi Sakamoto break; 734eb7b3a05STakashi Sakamoto } 73533a5f989SDan Carpenter if (i == ARRAY_SIZE(bridgeco_freq_table)) 736eb7b3a05STakashi Sakamoto return -ENOSYS; 737eb7b3a05STakashi Sakamoto 738eb7b3a05STakashi Sakamoto /* Avoid double count by different entries for the same rate. */ 739eb7b3a05STakashi Sakamoto memset(&formation[i], 0, sizeof(struct snd_bebob_stream_formation)); 740eb7b3a05STakashi Sakamoto 741eb7b3a05STakashi Sakamoto for (e = 0; e < buf[4]; e++) { 742eb7b3a05STakashi Sakamoto channels = buf[5 + e * 2]; 743eb7b3a05STakashi Sakamoto format = buf[6 + e * 2]; 744eb7b3a05STakashi Sakamoto 745eb7b3a05STakashi Sakamoto switch (format) { 74651fa31d4STakashi Sakamoto /* IEC 60958 Conformant, currently handled as MBLA */ 747eb7b3a05STakashi Sakamoto case 0x00: 748eb7b3a05STakashi Sakamoto /* Multi bit linear audio */ 749eb7b3a05STakashi Sakamoto case 0x06: /* Raw */ 750eb7b3a05STakashi Sakamoto formation[i].pcm += channels; 751eb7b3a05STakashi Sakamoto break; 752eb7b3a05STakashi Sakamoto /* MIDI Conformant */ 753eb7b3a05STakashi Sakamoto case 0x0d: 754eb7b3a05STakashi Sakamoto formation[i].midi += channels; 755eb7b3a05STakashi Sakamoto break; 756eb7b3a05STakashi Sakamoto /* IEC 61937-3 to 7 */ 757eb7b3a05STakashi Sakamoto case 0x01: 758eb7b3a05STakashi Sakamoto case 0x02: 759eb7b3a05STakashi Sakamoto case 0x03: 760eb7b3a05STakashi Sakamoto case 0x04: 761eb7b3a05STakashi Sakamoto case 0x05: 762eb7b3a05STakashi Sakamoto /* Multi bit linear audio */ 763eb7b3a05STakashi Sakamoto case 0x07: /* DVD-Audio */ 764eb7b3a05STakashi Sakamoto case 0x0c: /* High Precision */ 765eb7b3a05STakashi Sakamoto /* One Bit Audio */ 766eb7b3a05STakashi Sakamoto case 0x08: /* (Plain) Raw */ 767eb7b3a05STakashi Sakamoto case 0x09: /* (Plain) SACD */ 768eb7b3a05STakashi Sakamoto case 0x0a: /* (Encoded) Raw */ 769eb7b3a05STakashi Sakamoto case 0x0b: /* (Encoded) SACD */ 770eb7b3a05STakashi Sakamoto /* Synchronization Stream (Stereo Raw audio) */ 771eb7b3a05STakashi Sakamoto case 0x40: 772eb7b3a05STakashi Sakamoto /* Don't care */ 773eb7b3a05STakashi Sakamoto case 0xff: 774eb7b3a05STakashi Sakamoto default: 775eb7b3a05STakashi Sakamoto return -ENOSYS; /* not supported */ 776eb7b3a05STakashi Sakamoto } 777eb7b3a05STakashi Sakamoto } 778eb7b3a05STakashi Sakamoto 77949c7b3fcSTakashi Sakamoto if (formation[i].pcm > AM824_MAX_CHANNELS_FOR_PCM || 78049c7b3fcSTakashi Sakamoto formation[i].midi > AM824_MAX_CHANNELS_FOR_MIDI) 781eb7b3a05STakashi Sakamoto return -ENOSYS; 782eb7b3a05STakashi Sakamoto 783eb7b3a05STakashi Sakamoto return 0; 784eb7b3a05STakashi Sakamoto } 785eb7b3a05STakashi Sakamoto 786eb7b3a05STakashi Sakamoto static int 787eb7b3a05STakashi Sakamoto fill_stream_formations(struct snd_bebob *bebob, enum avc_bridgeco_plug_dir dir, 788eb7b3a05STakashi Sakamoto unsigned short pid) 789eb7b3a05STakashi Sakamoto { 790eb7b3a05STakashi Sakamoto u8 *buf; 791eb7b3a05STakashi Sakamoto struct snd_bebob_stream_formation *formations; 792eb7b3a05STakashi Sakamoto unsigned int len, eid; 793eb7b3a05STakashi Sakamoto u8 addr[AVC_BRIDGECO_ADDR_BYTES]; 794eb7b3a05STakashi Sakamoto int err; 795eb7b3a05STakashi Sakamoto 796eb7b3a05STakashi Sakamoto buf = kmalloc(FORMAT_MAXIMUM_LENGTH, GFP_KERNEL); 797eb7b3a05STakashi Sakamoto if (buf == NULL) 798eb7b3a05STakashi Sakamoto return -ENOMEM; 799eb7b3a05STakashi Sakamoto 800eb7b3a05STakashi Sakamoto if (dir == AVC_BRIDGECO_PLUG_DIR_IN) 801eb7b3a05STakashi Sakamoto formations = bebob->rx_stream_formations; 802eb7b3a05STakashi Sakamoto else 803eb7b3a05STakashi Sakamoto formations = bebob->tx_stream_formations; 804eb7b3a05STakashi Sakamoto 805eb7b3a05STakashi Sakamoto for (eid = 0; eid < SND_BEBOB_STRM_FMT_ENTRIES; eid++) { 806eb7b3a05STakashi Sakamoto len = FORMAT_MAXIMUM_LENGTH; 807eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, dir, 808eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, pid); 809eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_strm_fmt(bebob->unit, addr, buf, 810eb7b3a05STakashi Sakamoto &len, eid); 811eb7b3a05STakashi Sakamoto /* No entries remained. */ 812eb7b3a05STakashi Sakamoto if (err == -EINVAL && eid > 0) { 813eb7b3a05STakashi Sakamoto err = 0; 814eb7b3a05STakashi Sakamoto break; 815eb7b3a05STakashi Sakamoto } else if (err < 0) { 816eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 817eb7b3a05STakashi Sakamoto "fail to get stream format %d for isoc %s plug %d:%d\n", 818eb7b3a05STakashi Sakamoto eid, 819eb7b3a05STakashi Sakamoto (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : 820eb7b3a05STakashi Sakamoto "out", 821eb7b3a05STakashi Sakamoto pid, err); 822eb7b3a05STakashi Sakamoto break; 823eb7b3a05STakashi Sakamoto } 824eb7b3a05STakashi Sakamoto 825eb7b3a05STakashi Sakamoto err = parse_stream_formation(buf, len, formations); 826eb7b3a05STakashi Sakamoto if (err < 0) 827eb7b3a05STakashi Sakamoto break; 828eb7b3a05STakashi Sakamoto } 829eb7b3a05STakashi Sakamoto 830eb7b3a05STakashi Sakamoto kfree(buf); 831eb7b3a05STakashi Sakamoto return err; 832eb7b3a05STakashi Sakamoto } 833eb7b3a05STakashi Sakamoto 834eb7b3a05STakashi Sakamoto static int 835eb7b3a05STakashi Sakamoto seek_msu_sync_input_plug(struct snd_bebob *bebob) 836eb7b3a05STakashi Sakamoto { 837eb7b3a05STakashi Sakamoto u8 plugs[AVC_PLUG_INFO_BUF_BYTES], addr[AVC_BRIDGECO_ADDR_BYTES]; 838a6b598bfSTakashi Sakamoto unsigned int i; 839a6b598bfSTakashi Sakamoto enum avc_bridgeco_plug_type type; 840eb7b3a05STakashi Sakamoto int err; 841eb7b3a05STakashi Sakamoto 842eb7b3a05STakashi Sakamoto /* Get the number of Music Sub Unit for both direction. */ 843eb7b3a05STakashi Sakamoto err = avc_general_get_plug_info(bebob->unit, 0x0c, 0x00, 0x00, plugs); 844eb7b3a05STakashi Sakamoto if (err < 0) { 845eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 846eb7b3a05STakashi Sakamoto "fail to get info for MSU in/out plugs: %d\n", 847eb7b3a05STakashi Sakamoto err); 848eb7b3a05STakashi Sakamoto goto end; 849eb7b3a05STakashi Sakamoto } 850eb7b3a05STakashi Sakamoto 851eb7b3a05STakashi Sakamoto /* seek destination plugs for 'MSU sync input' */ 852eb7b3a05STakashi Sakamoto bebob->sync_input_plug = -1; 853eb7b3a05STakashi Sakamoto for (i = 0; i < plugs[0]; i++) { 854eb7b3a05STakashi Sakamoto avc_bridgeco_fill_msu_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, i); 855eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 856eb7b3a05STakashi Sakamoto if (err < 0) { 857eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 858eb7b3a05STakashi Sakamoto "fail to get type for MSU in plug %d: %d\n", 859eb7b3a05STakashi Sakamoto i, err); 860eb7b3a05STakashi Sakamoto goto end; 861eb7b3a05STakashi Sakamoto } 862eb7b3a05STakashi Sakamoto 863eb7b3a05STakashi Sakamoto if (type == AVC_BRIDGECO_PLUG_TYPE_SYNC) { 864eb7b3a05STakashi Sakamoto bebob->sync_input_plug = i; 865eb7b3a05STakashi Sakamoto break; 866eb7b3a05STakashi Sakamoto } 867eb7b3a05STakashi Sakamoto } 868eb7b3a05STakashi Sakamoto end: 869eb7b3a05STakashi Sakamoto return err; 870eb7b3a05STakashi Sakamoto } 871eb7b3a05STakashi Sakamoto 872eb7b3a05STakashi Sakamoto int snd_bebob_stream_discover(struct snd_bebob *bebob) 873eb7b3a05STakashi Sakamoto { 8746b9866c8SJulia Lawall const struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock; 875eb7b3a05STakashi Sakamoto u8 plugs[AVC_PLUG_INFO_BUF_BYTES], addr[AVC_BRIDGECO_ADDR_BYTES]; 876eb7b3a05STakashi Sakamoto enum avc_bridgeco_plug_type type; 877eb7b3a05STakashi Sakamoto unsigned int i; 878eb7b3a05STakashi Sakamoto int err; 879eb7b3a05STakashi Sakamoto 880eb7b3a05STakashi Sakamoto /* the number of plugs for isoc in/out, ext in/out */ 881eb7b3a05STakashi Sakamoto err = avc_general_get_plug_info(bebob->unit, 0x1f, 0x07, 0x00, plugs); 882eb7b3a05STakashi Sakamoto if (err < 0) { 883eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 884eb7b3a05STakashi Sakamoto "fail to get info for isoc/external in/out plugs: %d\n", 885eb7b3a05STakashi Sakamoto err); 886eb7b3a05STakashi Sakamoto goto end; 887eb7b3a05STakashi Sakamoto } 888eb7b3a05STakashi Sakamoto 889eb7b3a05STakashi Sakamoto /* 890eb7b3a05STakashi Sakamoto * This module supports at least one isoc input plug and one isoc 891eb7b3a05STakashi Sakamoto * output plug. 892eb7b3a05STakashi Sakamoto */ 893eb7b3a05STakashi Sakamoto if ((plugs[0] == 0) || (plugs[1] == 0)) { 894eb7b3a05STakashi Sakamoto err = -ENOSYS; 895eb7b3a05STakashi Sakamoto goto end; 896eb7b3a05STakashi Sakamoto } 897eb7b3a05STakashi Sakamoto 898eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, 899eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 900eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 901eb7b3a05STakashi Sakamoto if (err < 0) { 902eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 903eb7b3a05STakashi Sakamoto "fail to get type for isoc in plug 0: %d\n", err); 904eb7b3a05STakashi Sakamoto goto end; 905eb7b3a05STakashi Sakamoto } else if (type != AVC_BRIDGECO_PLUG_TYPE_ISOC) { 906eb7b3a05STakashi Sakamoto err = -ENOSYS; 907eb7b3a05STakashi Sakamoto goto end; 908eb7b3a05STakashi Sakamoto } 909eb7b3a05STakashi Sakamoto err = fill_stream_formations(bebob, AVC_BRIDGECO_PLUG_DIR_IN, 0); 910eb7b3a05STakashi Sakamoto if (err < 0) 911eb7b3a05STakashi Sakamoto goto end; 912eb7b3a05STakashi Sakamoto 913eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_OUT, 914eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); 915eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 916eb7b3a05STakashi Sakamoto if (err < 0) { 917eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 918eb7b3a05STakashi Sakamoto "fail to get type for isoc out plug 0: %d\n", err); 919eb7b3a05STakashi Sakamoto goto end; 920eb7b3a05STakashi Sakamoto } else if (type != AVC_BRIDGECO_PLUG_TYPE_ISOC) { 921eb7b3a05STakashi Sakamoto err = -ENOSYS; 922eb7b3a05STakashi Sakamoto goto end; 923eb7b3a05STakashi Sakamoto } 924eb7b3a05STakashi Sakamoto err = fill_stream_formations(bebob, AVC_BRIDGECO_PLUG_DIR_OUT, 0); 925eb7b3a05STakashi Sakamoto if (err < 0) 926eb7b3a05STakashi Sakamoto goto end; 927eb7b3a05STakashi Sakamoto 928eb7b3a05STakashi Sakamoto /* count external input plugs for MIDI */ 929eb7b3a05STakashi Sakamoto bebob->midi_input_ports = 0; 930eb7b3a05STakashi Sakamoto for (i = 0; i < plugs[2]; i++) { 931eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, 932eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_EXT, i); 933eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 934eb7b3a05STakashi Sakamoto if (err < 0) { 935eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 936eb7b3a05STakashi Sakamoto "fail to get type for external in plug %d: %d\n", 937eb7b3a05STakashi Sakamoto i, err); 938eb7b3a05STakashi Sakamoto goto end; 939eb7b3a05STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI) { 940eb7b3a05STakashi Sakamoto bebob->midi_input_ports++; 941eb7b3a05STakashi Sakamoto } 942eb7b3a05STakashi Sakamoto } 943eb7b3a05STakashi Sakamoto 944eb7b3a05STakashi Sakamoto /* count external output plugs for MIDI */ 945eb7b3a05STakashi Sakamoto bebob->midi_output_ports = 0; 946eb7b3a05STakashi Sakamoto for (i = 0; i < plugs[3]; i++) { 947eb7b3a05STakashi Sakamoto avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_OUT, 948eb7b3a05STakashi Sakamoto AVC_BRIDGECO_PLUG_UNIT_EXT, i); 949eb7b3a05STakashi Sakamoto err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); 950eb7b3a05STakashi Sakamoto if (err < 0) { 951eb7b3a05STakashi Sakamoto dev_err(&bebob->unit->device, 952eb7b3a05STakashi Sakamoto "fail to get type for external out plug %d: %d\n", 953eb7b3a05STakashi Sakamoto i, err); 954eb7b3a05STakashi Sakamoto goto end; 955eb7b3a05STakashi Sakamoto } else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI) { 956eb7b3a05STakashi Sakamoto bebob->midi_output_ports++; 957eb7b3a05STakashi Sakamoto } 958eb7b3a05STakashi Sakamoto } 959eb7b3a05STakashi Sakamoto 960eb7b3a05STakashi Sakamoto /* for check source of clock later */ 9611fc9522aSTakashi Sakamoto if (!clk_spec) 962eb7b3a05STakashi Sakamoto err = seek_msu_sync_input_plug(bebob); 963eb7b3a05STakashi Sakamoto end: 964eb7b3a05STakashi Sakamoto return err; 965eb7b3a05STakashi Sakamoto } 966618eabeaSTakashi Sakamoto 967618eabeaSTakashi Sakamoto void snd_bebob_stream_lock_changed(struct snd_bebob *bebob) 968618eabeaSTakashi Sakamoto { 969618eabeaSTakashi Sakamoto bebob->dev_lock_changed = true; 970618eabeaSTakashi Sakamoto wake_up(&bebob->hwdep_wait); 971618eabeaSTakashi Sakamoto } 972618eabeaSTakashi Sakamoto 973618eabeaSTakashi Sakamoto int snd_bebob_stream_lock_try(struct snd_bebob *bebob) 974618eabeaSTakashi Sakamoto { 975618eabeaSTakashi Sakamoto int err; 976618eabeaSTakashi Sakamoto 977618eabeaSTakashi Sakamoto spin_lock_irq(&bebob->lock); 978618eabeaSTakashi Sakamoto 979618eabeaSTakashi Sakamoto /* user land lock this */ 980618eabeaSTakashi Sakamoto if (bebob->dev_lock_count < 0) { 981618eabeaSTakashi Sakamoto err = -EBUSY; 982618eabeaSTakashi Sakamoto goto end; 983618eabeaSTakashi Sakamoto } 984618eabeaSTakashi Sakamoto 985618eabeaSTakashi Sakamoto /* this is the first time */ 986618eabeaSTakashi Sakamoto if (bebob->dev_lock_count++ == 0) 987618eabeaSTakashi Sakamoto snd_bebob_stream_lock_changed(bebob); 988618eabeaSTakashi Sakamoto err = 0; 989618eabeaSTakashi Sakamoto end: 990618eabeaSTakashi Sakamoto spin_unlock_irq(&bebob->lock); 991618eabeaSTakashi Sakamoto return err; 992618eabeaSTakashi Sakamoto } 993618eabeaSTakashi Sakamoto 994618eabeaSTakashi Sakamoto void snd_bebob_stream_lock_release(struct snd_bebob *bebob) 995618eabeaSTakashi Sakamoto { 996618eabeaSTakashi Sakamoto spin_lock_irq(&bebob->lock); 997618eabeaSTakashi Sakamoto 998618eabeaSTakashi Sakamoto if (WARN_ON(bebob->dev_lock_count <= 0)) 999618eabeaSTakashi Sakamoto goto end; 1000618eabeaSTakashi Sakamoto if (--bebob->dev_lock_count == 0) 1001618eabeaSTakashi Sakamoto snd_bebob_stream_lock_changed(bebob); 1002618eabeaSTakashi Sakamoto end: 1003618eabeaSTakashi Sakamoto spin_unlock_irq(&bebob->lock); 1004618eabeaSTakashi Sakamoto } 1005