1bea36afaSTakashi Sakamoto // SPDX-License-Identifier: GPL-2.0-only 2bea36afaSTakashi Sakamoto // 3bea36afaSTakashi Sakamoto // motu-register-dsp-message-parser.c - a part of driver for MOTU FireWire series 4bea36afaSTakashi Sakamoto // 5bea36afaSTakashi Sakamoto // Copyright (c) 2021 Takashi Sakamoto <o-takashi@sakamocchi.jp> 6bea36afaSTakashi Sakamoto 7bea36afaSTakashi Sakamoto // Below models allow software to configure their DSP functions by asynchronous transaction 8bea36afaSTakashi Sakamoto // to access their internal registers. 9bea36afaSTakashi Sakamoto // * 828 mk2 10bea36afaSTakashi Sakamoto // * 896hd 11bea36afaSTakashi Sakamoto // * Traveler 12bea36afaSTakashi Sakamoto // * 8 pre 13bea36afaSTakashi Sakamoto // * Ultralite 14bea36afaSTakashi Sakamoto // * 4 pre 15bea36afaSTakashi Sakamoto // * Audio Express 16bea36afaSTakashi Sakamoto // 17bea36afaSTakashi Sakamoto // Additionally, isochronous packets from the above models include messages to notify state of 18bea36afaSTakashi Sakamoto // DSP. The messages are two set of 3 byte data in 2nd and 3rd quadlet of data block. When user 19bea36afaSTakashi Sakamoto // operates hardware components such as dial and switch, corresponding messages are transferred. 20bea36afaSTakashi Sakamoto // The messages include Hardware metering and MIDI messages as well. 21bea36afaSTakashi Sakamoto 22bea36afaSTakashi Sakamoto #include "motu.h" 23bea36afaSTakashi Sakamoto 24bea36afaSTakashi Sakamoto #define MSG_FLAG_POS 4 25bea36afaSTakashi Sakamoto #define MSG_FLAG_TYPE_MASK 0xf8 26bea36afaSTakashi Sakamoto #define MSG_FLAG_MIDI_MASK 0x01 27bea36afaSTakashi Sakamoto #define MSG_FLAG_MODEL_SPECIFIC_MASK 0x06 28bea36afaSTakashi Sakamoto #define MSG_FLAG_8PRE 0x00 29bea36afaSTakashi Sakamoto #define MSG_FLAG_ULTRALITE 0x04 30bea36afaSTakashi Sakamoto #define MSG_FLAG_TRAVELER 0x04 31bea36afaSTakashi Sakamoto #define MSG_FLAG_828MK2 0x04 32bea36afaSTakashi Sakamoto #define MSG_FLAG_896HD 0x04 33bea36afaSTakashi Sakamoto #define MSG_FLAG_4PRE 0x05 // MIDI mask is in 8th byte. 34bea36afaSTakashi Sakamoto #define MSG_FLAG_AUDIOEXPRESS 0x05 // MIDI mask is in 8th byte. 35bea36afaSTakashi Sakamoto #define MSG_FLAG_TYPE_SHIFT 3 36bea36afaSTakashi Sakamoto #define MSG_VALUE_POS 5 37bea36afaSTakashi Sakamoto #define MSG_MIDI_BYTE_POS 6 38bea36afaSTakashi Sakamoto #define MSG_METER_IDX_POS 7 39bea36afaSTakashi Sakamoto 40bea36afaSTakashi Sakamoto // In 4 pre and Audio express, meter index is in 6th byte. MIDI flag is in 8th byte and MIDI byte 41bea36afaSTakashi Sakamoto // is in 7th byte. 42bea36afaSTakashi Sakamoto #define MSG_METER_IDX_POS_4PRE_AE 6 43bea36afaSTakashi Sakamoto #define MSG_MIDI_BYTE_POS_4PRE_AE 7 44bea36afaSTakashi Sakamoto #define MSG_FLAG_MIDI_POS_4PRE_AE 8 45bea36afaSTakashi Sakamoto 46bea36afaSTakashi Sakamoto enum register_dsp_msg_type { 47bea36afaSTakashi Sakamoto // Used for messages with no information. 48bea36afaSTakashi Sakamoto INVALID = 0x00, 49bea36afaSTakashi Sakamoto MIXER_SELECT = 0x01, 50bea36afaSTakashi Sakamoto MIXER_SRC_GAIN = 0x02, 51bea36afaSTakashi Sakamoto MIXER_SRC_PAN = 0x03, 52bea36afaSTakashi Sakamoto MIXER_SRC_FLAG = 0x04, 53bea36afaSTakashi Sakamoto MIXER_OUTPUT_PAIRED_VOLUME = 0x05, 54bea36afaSTakashi Sakamoto MIXER_OUTPUT_PAIRED_FLAG = 0x06, 55bea36afaSTakashi Sakamoto MAIN_OUTPUT_PAIRED_VOLUME = 0x07, 56bea36afaSTakashi Sakamoto HP_OUTPUT_PAIRED_VOLUME = 0x08, 576ca81d2bSTakashi Sakamoto HP_OUTPUT_PAIRED_ASSIGNMENT = 0x09, 58bea36afaSTakashi Sakamoto // Transferred by all models but the purpose is still unknown. 59bea36afaSTakashi Sakamoto UNKNOWN_0 = 0x0a, 60bea36afaSTakashi Sakamoto // Specific to 828mk2, 896hd, Traveler. 61bea36afaSTakashi Sakamoto UNKNOWN_2 = 0x0c, 62bea36afaSTakashi Sakamoto // Specific to 828mk2, Traveler, and 896hd (not functional). 63bea36afaSTakashi Sakamoto LINE_INPUT_BOOST = 0x0d, 64bea36afaSTakashi Sakamoto // Specific to 828mk2, Traveler, and 896hd (not functional). 65bea36afaSTakashi Sakamoto LINE_INPUT_NOMINAL_LEVEL = 0x0e, 66bea36afaSTakashi Sakamoto // Specific to Ultralite, 4 pre, Audio express, and 8 pre (not functional). 67bea36afaSTakashi Sakamoto INPUT_GAIN_AND_INVERT = 0x15, 68bea36afaSTakashi Sakamoto // Specific to 4 pre, and Audio express. 69bea36afaSTakashi Sakamoto INPUT_FLAG = 0x16, 70bea36afaSTakashi Sakamoto // Specific to 4 pre, and Audio express. 71bea36afaSTakashi Sakamoto MIXER_SRC_PAIRED_BALANCE = 0x17, 72bea36afaSTakashi Sakamoto // Specific to 4 pre, and Audio express. 73bea36afaSTakashi Sakamoto MIXER_SRC_PAIRED_WIDTH = 0x18, 74bea36afaSTakashi Sakamoto // Transferred by all models. This type of message interposes the series of the other 75bea36afaSTakashi Sakamoto // messages. The message delivers signal level up to 96.0 kHz. In 828mk2, 896hd, and 76bea36afaSTakashi Sakamoto // Traveler, one of physical outputs is selected for the message. The selection is done 77bea36afaSTakashi Sakamoto // by LSB one byte in asynchronous write quadlet transaction to 0x'ffff'f000'0b2c. 78bea36afaSTakashi Sakamoto METER = 0x1f, 79bea36afaSTakashi Sakamoto }; 80bea36afaSTakashi Sakamoto 814c9eda8fSTakashi Sakamoto #define EVENT_QUEUE_SIZE 16 824c9eda8fSTakashi Sakamoto 83bea36afaSTakashi Sakamoto struct msg_parser { 8458b62ab7STakashi Sakamoto spinlock_t lock; 85bea36afaSTakashi Sakamoto struct snd_firewire_motu_register_dsp_meter meter; 86bea36afaSTakashi Sakamoto bool meter_pos_quirk; 87dc36a975STakashi Sakamoto 88dc36a975STakashi Sakamoto struct snd_firewire_motu_register_dsp_parameter param; 89dc36a975STakashi Sakamoto u8 prev_mixer_src_type; 90dc36a975STakashi Sakamoto u8 mixer_ch; 91dc36a975STakashi Sakamoto u8 mixer_src_ch; 927d843c49STakashi Sakamoto 937d843c49STakashi Sakamoto u8 input_ch; 947d843c49STakashi Sakamoto u8 prev_msg_type; 954c9eda8fSTakashi Sakamoto 964c9eda8fSTakashi Sakamoto u32 event_queue[EVENT_QUEUE_SIZE]; 974c9eda8fSTakashi Sakamoto unsigned int push_pos; 98634ec0b2STakashi Sakamoto unsigned int pull_pos; 99bea36afaSTakashi Sakamoto }; 100bea36afaSTakashi Sakamoto 101bea36afaSTakashi Sakamoto int snd_motu_register_dsp_message_parser_new(struct snd_motu *motu) 102bea36afaSTakashi Sakamoto { 103bea36afaSTakashi Sakamoto struct msg_parser *parser; 104bea36afaSTakashi Sakamoto parser = devm_kzalloc(&motu->card->card_dev, sizeof(*parser), GFP_KERNEL); 105bea36afaSTakashi Sakamoto if (!parser) 106bea36afaSTakashi Sakamoto return -ENOMEM; 10758b62ab7STakashi Sakamoto spin_lock_init(&parser->lock); 108bea36afaSTakashi Sakamoto if (motu->spec == &snd_motu_spec_4pre || motu->spec == &snd_motu_spec_audio_express) 109bea36afaSTakashi Sakamoto parser->meter_pos_quirk = true; 110bea36afaSTakashi Sakamoto motu->message_parser = parser; 111bea36afaSTakashi Sakamoto return 0; 112bea36afaSTakashi Sakamoto } 113bea36afaSTakashi Sakamoto 114bea36afaSTakashi Sakamoto int snd_motu_register_dsp_message_parser_init(struct snd_motu *motu) 115bea36afaSTakashi Sakamoto { 116dc36a975STakashi Sakamoto struct msg_parser *parser = motu->message_parser; 117dc36a975STakashi Sakamoto 118dc36a975STakashi Sakamoto parser->prev_mixer_src_type = INVALID; 119dc36a975STakashi Sakamoto parser->mixer_ch = 0xff; 120dc36a975STakashi Sakamoto parser->mixer_src_ch = 0xff; 1217d843c49STakashi Sakamoto parser->prev_msg_type = INVALID; 122dc36a975STakashi Sakamoto 123bea36afaSTakashi Sakamoto return 0; 124bea36afaSTakashi Sakamoto } 125bea36afaSTakashi Sakamoto 126634ec0b2STakashi Sakamoto // Rough implementaion of queue without overrun check. 1274c9eda8fSTakashi Sakamoto static void queue_event(struct snd_motu *motu, u8 msg_type, u8 identifier0, u8 identifier1, u8 val) 1284c9eda8fSTakashi Sakamoto { 1294c9eda8fSTakashi Sakamoto struct msg_parser *parser = motu->message_parser; 1304c9eda8fSTakashi Sakamoto unsigned int pos = parser->push_pos; 1314c9eda8fSTakashi Sakamoto u32 entry; 1324c9eda8fSTakashi Sakamoto 1334c9eda8fSTakashi Sakamoto if (!motu->hwdep || motu->hwdep->used == 0) 1344c9eda8fSTakashi Sakamoto return; 1354c9eda8fSTakashi Sakamoto 1364c9eda8fSTakashi Sakamoto entry = (msg_type << 24) | (identifier0 << 16) | (identifier1 << 8) | val; 1374c9eda8fSTakashi Sakamoto parser->event_queue[pos] = entry; 1384c9eda8fSTakashi Sakamoto 1394c9eda8fSTakashi Sakamoto ++pos; 1404c9eda8fSTakashi Sakamoto if (pos >= EVENT_QUEUE_SIZE) 1414c9eda8fSTakashi Sakamoto pos = 0; 1424c9eda8fSTakashi Sakamoto parser->push_pos = pos; 1434c9eda8fSTakashi Sakamoto } 1444c9eda8fSTakashi Sakamoto 145bea36afaSTakashi Sakamoto void snd_motu_register_dsp_message_parser_parse(struct snd_motu *motu, const struct pkt_desc *descs, 146bea36afaSTakashi Sakamoto unsigned int desc_count, unsigned int data_block_quadlets) 147bea36afaSTakashi Sakamoto { 148bea36afaSTakashi Sakamoto struct msg_parser *parser = motu->message_parser; 149bea36afaSTakashi Sakamoto bool meter_pos_quirk = parser->meter_pos_quirk; 150634ec0b2STakashi Sakamoto unsigned int pos = parser->push_pos; 15158b62ab7STakashi Sakamoto unsigned long flags; 152bea36afaSTakashi Sakamoto int i; 153bea36afaSTakashi Sakamoto 15458b62ab7STakashi Sakamoto spin_lock_irqsave(&parser->lock, flags); 15558b62ab7STakashi Sakamoto 156bea36afaSTakashi Sakamoto for (i = 0; i < desc_count; ++i) { 157bea36afaSTakashi Sakamoto const struct pkt_desc *desc = descs + i; 158bea36afaSTakashi Sakamoto __be32 *buffer = desc->ctx_payload; 159bea36afaSTakashi Sakamoto unsigned int data_blocks = desc->data_blocks; 160bea36afaSTakashi Sakamoto int j; 161bea36afaSTakashi Sakamoto 162bea36afaSTakashi Sakamoto for (j = 0; j < data_blocks; ++j) { 163bea36afaSTakashi Sakamoto u8 *b = (u8 *)buffer; 164bea36afaSTakashi Sakamoto u8 msg_type = (b[MSG_FLAG_POS] & MSG_FLAG_TYPE_MASK) >> MSG_FLAG_TYPE_SHIFT; 165bea36afaSTakashi Sakamoto u8 val = b[MSG_VALUE_POS]; 166bea36afaSTakashi Sakamoto 167bea36afaSTakashi Sakamoto buffer += data_block_quadlets; 168bea36afaSTakashi Sakamoto 169bea36afaSTakashi Sakamoto switch (msg_type) { 170dc36a975STakashi Sakamoto case MIXER_SELECT: 171dc36a975STakashi Sakamoto { 172dc36a975STakashi Sakamoto u8 mixer_ch = val / 0x20; 173dc36a975STakashi Sakamoto if (mixer_ch < SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT) { 174dc36a975STakashi Sakamoto parser->mixer_src_ch = 0; 175dc36a975STakashi Sakamoto parser->mixer_ch = mixer_ch; 176dc36a975STakashi Sakamoto } 177dc36a975STakashi Sakamoto break; 178dc36a975STakashi Sakamoto } 179dc36a975STakashi Sakamoto case MIXER_SRC_GAIN: 180dc36a975STakashi Sakamoto case MIXER_SRC_PAN: 181dc36a975STakashi Sakamoto case MIXER_SRC_FLAG: 182dc36a975STakashi Sakamoto case MIXER_SRC_PAIRED_BALANCE: 183dc36a975STakashi Sakamoto case MIXER_SRC_PAIRED_WIDTH: 184dc36a975STakashi Sakamoto { 185dc36a975STakashi Sakamoto struct snd_firewire_motu_register_dsp_parameter *param = &parser->param; 186dc36a975STakashi Sakamoto u8 mixer_ch = parser->mixer_ch; 187dc36a975STakashi Sakamoto u8 mixer_src_ch = parser->mixer_src_ch; 188dc36a975STakashi Sakamoto 189dc36a975STakashi Sakamoto if (msg_type != parser->prev_mixer_src_type) 190dc36a975STakashi Sakamoto mixer_src_ch = 0; 191dc36a975STakashi Sakamoto else 192dc36a975STakashi Sakamoto ++mixer_src_ch; 193dc36a975STakashi Sakamoto parser->prev_mixer_src_type = msg_type; 194dc36a975STakashi Sakamoto 195dc36a975STakashi Sakamoto if (mixer_ch < SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT && 196dc36a975STakashi Sakamoto mixer_src_ch < SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_SRC_COUNT) { 197dc36a975STakashi Sakamoto u8 mixer_ch = parser->mixer_ch; 198dc36a975STakashi Sakamoto 199dc36a975STakashi Sakamoto switch (msg_type) { 200dc36a975STakashi Sakamoto case MIXER_SRC_GAIN: 2014c9eda8fSTakashi Sakamoto if (param->mixer.source[mixer_ch].gain[mixer_src_ch] != val) { 2024c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, mixer_ch, mixer_src_ch, val); 203dc36a975STakashi Sakamoto param->mixer.source[mixer_ch].gain[mixer_src_ch] = val; 2044c9eda8fSTakashi Sakamoto } 205dc36a975STakashi Sakamoto break; 206dc36a975STakashi Sakamoto case MIXER_SRC_PAN: 2074c9eda8fSTakashi Sakamoto if (param->mixer.source[mixer_ch].pan[mixer_src_ch] != val) { 2084c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, mixer_ch, mixer_src_ch, val); 209dc36a975STakashi Sakamoto param->mixer.source[mixer_ch].pan[mixer_src_ch] = val; 2104c9eda8fSTakashi Sakamoto } 211dc36a975STakashi Sakamoto break; 212dc36a975STakashi Sakamoto case MIXER_SRC_FLAG: 2134c9eda8fSTakashi Sakamoto if (param->mixer.source[mixer_ch].flag[mixer_src_ch] != val) { 2144c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, mixer_ch, mixer_src_ch, val); 215dc36a975STakashi Sakamoto param->mixer.source[mixer_ch].flag[mixer_src_ch] = val; 2164c9eda8fSTakashi Sakamoto } 217dc36a975STakashi Sakamoto break; 218dc36a975STakashi Sakamoto case MIXER_SRC_PAIRED_BALANCE: 2194c9eda8fSTakashi Sakamoto if (param->mixer.source[mixer_ch].paired_balance[mixer_src_ch] != val) { 2204c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, mixer_ch, mixer_src_ch, val); 221dc36a975STakashi Sakamoto param->mixer.source[mixer_ch].paired_balance[mixer_src_ch] = val; 2224c9eda8fSTakashi Sakamoto } 223dc36a975STakashi Sakamoto break; 224dc36a975STakashi Sakamoto case MIXER_SRC_PAIRED_WIDTH: 2254c9eda8fSTakashi Sakamoto if (param->mixer.source[mixer_ch].paired_width[mixer_src_ch] != val) { 2264c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, mixer_ch, mixer_src_ch, val); 227dc36a975STakashi Sakamoto param->mixer.source[mixer_ch].paired_width[mixer_src_ch] = val; 2284c9eda8fSTakashi Sakamoto } 229dc36a975STakashi Sakamoto break; 230dc36a975STakashi Sakamoto default: 231dc36a975STakashi Sakamoto break; 232dc36a975STakashi Sakamoto } 233dc36a975STakashi Sakamoto 234dc36a975STakashi Sakamoto parser->mixer_src_ch = mixer_src_ch; 235dc36a975STakashi Sakamoto } 236dc36a975STakashi Sakamoto break; 237dc36a975STakashi Sakamoto } 238ce69bed5STakashi Sakamoto case MIXER_OUTPUT_PAIRED_VOLUME: 239ce69bed5STakashi Sakamoto case MIXER_OUTPUT_PAIRED_FLAG: 240ce69bed5STakashi Sakamoto { 241ce69bed5STakashi Sakamoto struct snd_firewire_motu_register_dsp_parameter *param = &parser->param; 242ce69bed5STakashi Sakamoto u8 mixer_ch = parser->mixer_ch; 243ce69bed5STakashi Sakamoto 244ce69bed5STakashi Sakamoto if (mixer_ch < SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT) { 245ce69bed5STakashi Sakamoto switch (msg_type) { 246ce69bed5STakashi Sakamoto case MIXER_OUTPUT_PAIRED_VOLUME: 2474c9eda8fSTakashi Sakamoto if (param->mixer.output.paired_volume[mixer_ch] != val) { 2484c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, mixer_ch, 0, val); 249ce69bed5STakashi Sakamoto param->mixer.output.paired_volume[mixer_ch] = val; 2504c9eda8fSTakashi Sakamoto } 251ce69bed5STakashi Sakamoto break; 252ce69bed5STakashi Sakamoto case MIXER_OUTPUT_PAIRED_FLAG: 2534c9eda8fSTakashi Sakamoto if (param->mixer.output.paired_flag[mixer_ch] != val) { 2544c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, mixer_ch, 0, val); 255ce69bed5STakashi Sakamoto param->mixer.output.paired_flag[mixer_ch] = val; 2564c9eda8fSTakashi Sakamoto } 257ce69bed5STakashi Sakamoto break; 258ce69bed5STakashi Sakamoto default: 259ce69bed5STakashi Sakamoto break; 260ce69bed5STakashi Sakamoto } 261ce69bed5STakashi Sakamoto } 262ce69bed5STakashi Sakamoto break; 263ce69bed5STakashi Sakamoto } 2646ca81d2bSTakashi Sakamoto case MAIN_OUTPUT_PAIRED_VOLUME: 2654c9eda8fSTakashi Sakamoto if (parser->param.output.main_paired_volume != val) { 2664c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, 0, 0, val); 2676ca81d2bSTakashi Sakamoto parser->param.output.main_paired_volume = val; 2684c9eda8fSTakashi Sakamoto } 2696ca81d2bSTakashi Sakamoto break; 2706ca81d2bSTakashi Sakamoto case HP_OUTPUT_PAIRED_VOLUME: 2714c9eda8fSTakashi Sakamoto if (parser->param.output.hp_paired_volume != val) { 2724c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, 0, 0, val); 2736ca81d2bSTakashi Sakamoto parser->param.output.hp_paired_volume = val; 2744c9eda8fSTakashi Sakamoto } 2756ca81d2bSTakashi Sakamoto break; 2766ca81d2bSTakashi Sakamoto case HP_OUTPUT_PAIRED_ASSIGNMENT: 2774c9eda8fSTakashi Sakamoto if (parser->param.output.hp_paired_assignment != val) { 2784c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, 0, 0, val); 2796ca81d2bSTakashi Sakamoto parser->param.output.hp_paired_assignment = val; 2804c9eda8fSTakashi Sakamoto } 2816ca81d2bSTakashi Sakamoto break; 28241cc2338STakashi Sakamoto case LINE_INPUT_BOOST: 2834c9eda8fSTakashi Sakamoto if (parser->param.line_input.boost_flag != val) { 2844c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, 0, 0, val); 28541cc2338STakashi Sakamoto parser->param.line_input.boost_flag = val; 2864c9eda8fSTakashi Sakamoto } 28741cc2338STakashi Sakamoto break; 28841cc2338STakashi Sakamoto case LINE_INPUT_NOMINAL_LEVEL: 2894c9eda8fSTakashi Sakamoto if (parser->param.line_input.nominal_level_flag != val) { 2904c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, 0, 0, val); 29141cc2338STakashi Sakamoto parser->param.line_input.nominal_level_flag = val; 2924c9eda8fSTakashi Sakamoto } 29341cc2338STakashi Sakamoto break; 2947d843c49STakashi Sakamoto case INPUT_GAIN_AND_INVERT: 2957d843c49STakashi Sakamoto case INPUT_FLAG: 2967d843c49STakashi Sakamoto { 2977d843c49STakashi Sakamoto struct snd_firewire_motu_register_dsp_parameter *param = &parser->param; 2987d843c49STakashi Sakamoto u8 input_ch = parser->input_ch; 2997d843c49STakashi Sakamoto 3007d843c49STakashi Sakamoto if (parser->prev_msg_type != msg_type) 3017d843c49STakashi Sakamoto input_ch = 0; 3027d843c49STakashi Sakamoto else 3037d843c49STakashi Sakamoto ++input_ch; 3047d843c49STakashi Sakamoto 3057d843c49STakashi Sakamoto if (input_ch < SNDRV_FIREWIRE_MOTU_REGISTER_DSP_INPUT_COUNT) { 3067d843c49STakashi Sakamoto switch (msg_type) { 3077d843c49STakashi Sakamoto case INPUT_GAIN_AND_INVERT: 3084c9eda8fSTakashi Sakamoto if (param->input.gain_and_invert[input_ch] != val) { 3094c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, input_ch, 0, val); 3107d843c49STakashi Sakamoto param->input.gain_and_invert[input_ch] = val; 3114c9eda8fSTakashi Sakamoto } 3127d843c49STakashi Sakamoto break; 3137d843c49STakashi Sakamoto case INPUT_FLAG: 3144c9eda8fSTakashi Sakamoto if (param->input.flag[input_ch] != val) { 3154c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, input_ch, 0, val); 3167d843c49STakashi Sakamoto param->input.flag[input_ch] = val; 3174c9eda8fSTakashi Sakamoto } 3187d843c49STakashi Sakamoto break; 3197d843c49STakashi Sakamoto default: 3207d843c49STakashi Sakamoto break; 3217d843c49STakashi Sakamoto } 3227d843c49STakashi Sakamoto parser->input_ch = input_ch; 3237d843c49STakashi Sakamoto } 3247d843c49STakashi Sakamoto break; 3257d843c49STakashi Sakamoto } 3267d843c49STakashi Sakamoto case UNKNOWN_0: 3277d843c49STakashi Sakamoto case UNKNOWN_2: 3287d843c49STakashi Sakamoto break; 329bea36afaSTakashi Sakamoto case METER: 330bea36afaSTakashi Sakamoto { 331bea36afaSTakashi Sakamoto u8 pos; 332bea36afaSTakashi Sakamoto 333bea36afaSTakashi Sakamoto if (!meter_pos_quirk) 334bea36afaSTakashi Sakamoto pos = b[MSG_METER_IDX_POS]; 335bea36afaSTakashi Sakamoto else 336bea36afaSTakashi Sakamoto pos = b[MSG_METER_IDX_POS_4PRE_AE]; 337bea36afaSTakashi Sakamoto 338*0f166e12STakashi Sakamoto if (pos < SNDRV_FIREWIRE_MOTU_REGISTER_DSP_METER_INPUT_COUNT) { 339bea36afaSTakashi Sakamoto parser->meter.data[pos] = val; 340*0f166e12STakashi Sakamoto } else if (pos >= 0x80) { 341*0f166e12STakashi Sakamoto pos -= (0x80 - SNDRV_FIREWIRE_MOTU_REGISTER_DSP_METER_INPUT_COUNT); 342*0f166e12STakashi Sakamoto 343*0f166e12STakashi Sakamoto if (pos < SNDRV_FIREWIRE_MOTU_REGISTER_DSP_METER_COUNT) 344*0f166e12STakashi Sakamoto parser->meter.data[pos] = val; 345*0f166e12STakashi Sakamoto } 346*0f166e12STakashi Sakamoto 3477d843c49STakashi Sakamoto // The message for meter is interruptible to the series of other 3487d843c49STakashi Sakamoto // types of messages. Don't cache it. 3497d843c49STakashi Sakamoto fallthrough; 350bea36afaSTakashi Sakamoto } 3517d843c49STakashi Sakamoto case INVALID: 352bea36afaSTakashi Sakamoto default: 3537d843c49STakashi Sakamoto // Don't cache it. 3547d843c49STakashi Sakamoto continue; 355bea36afaSTakashi Sakamoto } 3567d843c49STakashi Sakamoto 3577d843c49STakashi Sakamoto parser->prev_msg_type = msg_type; 358bea36afaSTakashi Sakamoto } 359bea36afaSTakashi Sakamoto } 36058b62ab7STakashi Sakamoto 361634ec0b2STakashi Sakamoto if (pos != parser->push_pos) 362634ec0b2STakashi Sakamoto wake_up(&motu->hwdep_wait); 363634ec0b2STakashi Sakamoto 36458b62ab7STakashi Sakamoto spin_unlock_irqrestore(&parser->lock, flags); 36558b62ab7STakashi Sakamoto } 36658b62ab7STakashi Sakamoto 36758b62ab7STakashi Sakamoto void snd_motu_register_dsp_message_parser_copy_meter(struct snd_motu *motu, 36858b62ab7STakashi Sakamoto struct snd_firewire_motu_register_dsp_meter *meter) 36958b62ab7STakashi Sakamoto { 37058b62ab7STakashi Sakamoto struct msg_parser *parser = motu->message_parser; 37158b62ab7STakashi Sakamoto unsigned long flags; 37258b62ab7STakashi Sakamoto 37358b62ab7STakashi Sakamoto spin_lock_irqsave(&parser->lock, flags); 37458b62ab7STakashi Sakamoto memcpy(meter, &parser->meter, sizeof(*meter)); 37558b62ab7STakashi Sakamoto spin_unlock_irqrestore(&parser->lock, flags); 376bea36afaSTakashi Sakamoto } 377ca15a09cSTakashi Sakamoto 378ca15a09cSTakashi Sakamoto void snd_motu_register_dsp_message_parser_copy_parameter(struct snd_motu *motu, 379ca15a09cSTakashi Sakamoto struct snd_firewire_motu_register_dsp_parameter *param) 380ca15a09cSTakashi Sakamoto { 381ca15a09cSTakashi Sakamoto struct msg_parser *parser = motu->message_parser; 382ca15a09cSTakashi Sakamoto unsigned long flags; 383ca15a09cSTakashi Sakamoto 384ca15a09cSTakashi Sakamoto spin_lock_irqsave(&parser->lock, flags); 385ca15a09cSTakashi Sakamoto memcpy(param, &parser->param, sizeof(*param)); 386ca15a09cSTakashi Sakamoto spin_unlock_irqrestore(&parser->lock, flags); 387ca15a09cSTakashi Sakamoto } 388634ec0b2STakashi Sakamoto 389634ec0b2STakashi Sakamoto unsigned int snd_motu_register_dsp_message_parser_count_event(struct snd_motu *motu) 390634ec0b2STakashi Sakamoto { 391634ec0b2STakashi Sakamoto struct msg_parser *parser = motu->message_parser; 392634ec0b2STakashi Sakamoto 393634ec0b2STakashi Sakamoto if (parser->pull_pos > parser->push_pos) 394634ec0b2STakashi Sakamoto return EVENT_QUEUE_SIZE - parser->pull_pos + parser->push_pos; 395634ec0b2STakashi Sakamoto else 396634ec0b2STakashi Sakamoto return parser->push_pos - parser->pull_pos; 397634ec0b2STakashi Sakamoto } 398634ec0b2STakashi Sakamoto 399634ec0b2STakashi Sakamoto bool snd_motu_register_dsp_message_parser_copy_event(struct snd_motu *motu, u32 *event) 400634ec0b2STakashi Sakamoto { 401634ec0b2STakashi Sakamoto struct msg_parser *parser = motu->message_parser; 402634ec0b2STakashi Sakamoto unsigned int pos = parser->pull_pos; 403634ec0b2STakashi Sakamoto unsigned long flags; 404634ec0b2STakashi Sakamoto 405634ec0b2STakashi Sakamoto if (pos == parser->push_pos) 406634ec0b2STakashi Sakamoto return false; 407634ec0b2STakashi Sakamoto 408634ec0b2STakashi Sakamoto spin_lock_irqsave(&parser->lock, flags); 409634ec0b2STakashi Sakamoto 410634ec0b2STakashi Sakamoto *event = parser->event_queue[pos]; 411634ec0b2STakashi Sakamoto 412634ec0b2STakashi Sakamoto ++pos; 413634ec0b2STakashi Sakamoto if (pos >= EVENT_QUEUE_SIZE) 414634ec0b2STakashi Sakamoto pos = 0; 415634ec0b2STakashi Sakamoto parser->pull_pos = pos; 416634ec0b2STakashi Sakamoto 417634ec0b2STakashi Sakamoto spin_unlock_irqrestore(&parser->lock, flags); 418634ec0b2STakashi Sakamoto 419634ec0b2STakashi Sakamoto return true; 420634ec0b2STakashi Sakamoto } 421