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 81*4c9eda8fSTakashi Sakamoto #define EVENT_QUEUE_SIZE 16 82*4c9eda8fSTakashi 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; 95*4c9eda8fSTakashi Sakamoto 96*4c9eda8fSTakashi Sakamoto u32 event_queue[EVENT_QUEUE_SIZE]; 97*4c9eda8fSTakashi Sakamoto unsigned int push_pos; 98bea36afaSTakashi Sakamoto }; 99bea36afaSTakashi Sakamoto 100bea36afaSTakashi Sakamoto int snd_motu_register_dsp_message_parser_new(struct snd_motu *motu) 101bea36afaSTakashi Sakamoto { 102bea36afaSTakashi Sakamoto struct msg_parser *parser; 103bea36afaSTakashi Sakamoto parser = devm_kzalloc(&motu->card->card_dev, sizeof(*parser), GFP_KERNEL); 104bea36afaSTakashi Sakamoto if (!parser) 105bea36afaSTakashi Sakamoto return -ENOMEM; 10658b62ab7STakashi Sakamoto spin_lock_init(&parser->lock); 107bea36afaSTakashi Sakamoto if (motu->spec == &snd_motu_spec_4pre || motu->spec == &snd_motu_spec_audio_express) 108bea36afaSTakashi Sakamoto parser->meter_pos_quirk = true; 109bea36afaSTakashi Sakamoto motu->message_parser = parser; 110bea36afaSTakashi Sakamoto return 0; 111bea36afaSTakashi Sakamoto } 112bea36afaSTakashi Sakamoto 113bea36afaSTakashi Sakamoto int snd_motu_register_dsp_message_parser_init(struct snd_motu *motu) 114bea36afaSTakashi Sakamoto { 115dc36a975STakashi Sakamoto struct msg_parser *parser = motu->message_parser; 116dc36a975STakashi Sakamoto 117dc36a975STakashi Sakamoto parser->prev_mixer_src_type = INVALID; 118dc36a975STakashi Sakamoto parser->mixer_ch = 0xff; 119dc36a975STakashi Sakamoto parser->mixer_src_ch = 0xff; 1207d843c49STakashi Sakamoto parser->prev_msg_type = INVALID; 121dc36a975STakashi Sakamoto 122bea36afaSTakashi Sakamoto return 0; 123bea36afaSTakashi Sakamoto } 124bea36afaSTakashi Sakamoto 125*4c9eda8fSTakashi Sakamoto static void queue_event(struct snd_motu *motu, u8 msg_type, u8 identifier0, u8 identifier1, u8 val) 126*4c9eda8fSTakashi Sakamoto { 127*4c9eda8fSTakashi Sakamoto struct msg_parser *parser = motu->message_parser; 128*4c9eda8fSTakashi Sakamoto unsigned int pos = parser->push_pos; 129*4c9eda8fSTakashi Sakamoto u32 entry; 130*4c9eda8fSTakashi Sakamoto 131*4c9eda8fSTakashi Sakamoto if (!motu->hwdep || motu->hwdep->used == 0) 132*4c9eda8fSTakashi Sakamoto return; 133*4c9eda8fSTakashi Sakamoto 134*4c9eda8fSTakashi Sakamoto entry = (msg_type << 24) | (identifier0 << 16) | (identifier1 << 8) | val; 135*4c9eda8fSTakashi Sakamoto parser->event_queue[pos] = entry; 136*4c9eda8fSTakashi Sakamoto 137*4c9eda8fSTakashi Sakamoto ++pos; 138*4c9eda8fSTakashi Sakamoto if (pos >= EVENT_QUEUE_SIZE) 139*4c9eda8fSTakashi Sakamoto pos = 0; 140*4c9eda8fSTakashi Sakamoto parser->push_pos = pos; 141*4c9eda8fSTakashi Sakamoto } 142*4c9eda8fSTakashi Sakamoto 143bea36afaSTakashi Sakamoto void snd_motu_register_dsp_message_parser_parse(struct snd_motu *motu, const struct pkt_desc *descs, 144bea36afaSTakashi Sakamoto unsigned int desc_count, unsigned int data_block_quadlets) 145bea36afaSTakashi Sakamoto { 146bea36afaSTakashi Sakamoto struct msg_parser *parser = motu->message_parser; 147bea36afaSTakashi Sakamoto bool meter_pos_quirk = parser->meter_pos_quirk; 14858b62ab7STakashi Sakamoto unsigned long flags; 149bea36afaSTakashi Sakamoto int i; 150bea36afaSTakashi Sakamoto 15158b62ab7STakashi Sakamoto spin_lock_irqsave(&parser->lock, flags); 15258b62ab7STakashi Sakamoto 153bea36afaSTakashi Sakamoto for (i = 0; i < desc_count; ++i) { 154bea36afaSTakashi Sakamoto const struct pkt_desc *desc = descs + i; 155bea36afaSTakashi Sakamoto __be32 *buffer = desc->ctx_payload; 156bea36afaSTakashi Sakamoto unsigned int data_blocks = desc->data_blocks; 157bea36afaSTakashi Sakamoto int j; 158bea36afaSTakashi Sakamoto 159bea36afaSTakashi Sakamoto for (j = 0; j < data_blocks; ++j) { 160bea36afaSTakashi Sakamoto u8 *b = (u8 *)buffer; 161bea36afaSTakashi Sakamoto u8 msg_type = (b[MSG_FLAG_POS] & MSG_FLAG_TYPE_MASK) >> MSG_FLAG_TYPE_SHIFT; 162bea36afaSTakashi Sakamoto u8 val = b[MSG_VALUE_POS]; 163bea36afaSTakashi Sakamoto 164bea36afaSTakashi Sakamoto buffer += data_block_quadlets; 165bea36afaSTakashi Sakamoto 166bea36afaSTakashi Sakamoto switch (msg_type) { 167dc36a975STakashi Sakamoto case MIXER_SELECT: 168dc36a975STakashi Sakamoto { 169dc36a975STakashi Sakamoto u8 mixer_ch = val / 0x20; 170dc36a975STakashi Sakamoto if (mixer_ch < SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT) { 171dc36a975STakashi Sakamoto parser->mixer_src_ch = 0; 172dc36a975STakashi Sakamoto parser->mixer_ch = mixer_ch; 173dc36a975STakashi Sakamoto } 174dc36a975STakashi Sakamoto break; 175dc36a975STakashi Sakamoto } 176dc36a975STakashi Sakamoto case MIXER_SRC_GAIN: 177dc36a975STakashi Sakamoto case MIXER_SRC_PAN: 178dc36a975STakashi Sakamoto case MIXER_SRC_FLAG: 179dc36a975STakashi Sakamoto case MIXER_SRC_PAIRED_BALANCE: 180dc36a975STakashi Sakamoto case MIXER_SRC_PAIRED_WIDTH: 181dc36a975STakashi Sakamoto { 182dc36a975STakashi Sakamoto struct snd_firewire_motu_register_dsp_parameter *param = &parser->param; 183dc36a975STakashi Sakamoto u8 mixer_ch = parser->mixer_ch; 184dc36a975STakashi Sakamoto u8 mixer_src_ch = parser->mixer_src_ch; 185dc36a975STakashi Sakamoto 186dc36a975STakashi Sakamoto if (msg_type != parser->prev_mixer_src_type) 187dc36a975STakashi Sakamoto mixer_src_ch = 0; 188dc36a975STakashi Sakamoto else 189dc36a975STakashi Sakamoto ++mixer_src_ch; 190dc36a975STakashi Sakamoto parser->prev_mixer_src_type = msg_type; 191dc36a975STakashi Sakamoto 192dc36a975STakashi Sakamoto if (mixer_ch < SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT && 193dc36a975STakashi Sakamoto mixer_src_ch < SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_SRC_COUNT) { 194dc36a975STakashi Sakamoto u8 mixer_ch = parser->mixer_ch; 195dc36a975STakashi Sakamoto 196dc36a975STakashi Sakamoto switch (msg_type) { 197dc36a975STakashi Sakamoto case MIXER_SRC_GAIN: 198*4c9eda8fSTakashi Sakamoto if (param->mixer.source[mixer_ch].gain[mixer_src_ch] != val) { 199*4c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, mixer_ch, mixer_src_ch, val); 200dc36a975STakashi Sakamoto param->mixer.source[mixer_ch].gain[mixer_src_ch] = val; 201*4c9eda8fSTakashi Sakamoto } 202dc36a975STakashi Sakamoto break; 203dc36a975STakashi Sakamoto case MIXER_SRC_PAN: 204*4c9eda8fSTakashi Sakamoto if (param->mixer.source[mixer_ch].pan[mixer_src_ch] != val) { 205*4c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, mixer_ch, mixer_src_ch, val); 206dc36a975STakashi Sakamoto param->mixer.source[mixer_ch].pan[mixer_src_ch] = val; 207*4c9eda8fSTakashi Sakamoto } 208dc36a975STakashi Sakamoto break; 209dc36a975STakashi Sakamoto case MIXER_SRC_FLAG: 210*4c9eda8fSTakashi Sakamoto if (param->mixer.source[mixer_ch].flag[mixer_src_ch] != val) { 211*4c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, mixer_ch, mixer_src_ch, val); 212dc36a975STakashi Sakamoto param->mixer.source[mixer_ch].flag[mixer_src_ch] = val; 213*4c9eda8fSTakashi Sakamoto } 214dc36a975STakashi Sakamoto break; 215dc36a975STakashi Sakamoto case MIXER_SRC_PAIRED_BALANCE: 216*4c9eda8fSTakashi Sakamoto if (param->mixer.source[mixer_ch].paired_balance[mixer_src_ch] != val) { 217*4c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, mixer_ch, mixer_src_ch, val); 218dc36a975STakashi Sakamoto param->mixer.source[mixer_ch].paired_balance[mixer_src_ch] = val; 219*4c9eda8fSTakashi Sakamoto } 220dc36a975STakashi Sakamoto break; 221dc36a975STakashi Sakamoto case MIXER_SRC_PAIRED_WIDTH: 222*4c9eda8fSTakashi Sakamoto if (param->mixer.source[mixer_ch].paired_width[mixer_src_ch] != val) { 223*4c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, mixer_ch, mixer_src_ch, val); 224dc36a975STakashi Sakamoto param->mixer.source[mixer_ch].paired_width[mixer_src_ch] = val; 225*4c9eda8fSTakashi Sakamoto } 226dc36a975STakashi Sakamoto break; 227dc36a975STakashi Sakamoto default: 228dc36a975STakashi Sakamoto break; 229dc36a975STakashi Sakamoto } 230dc36a975STakashi Sakamoto 231dc36a975STakashi Sakamoto parser->mixer_src_ch = mixer_src_ch; 232dc36a975STakashi Sakamoto } 233dc36a975STakashi Sakamoto break; 234dc36a975STakashi Sakamoto } 235ce69bed5STakashi Sakamoto case MIXER_OUTPUT_PAIRED_VOLUME: 236ce69bed5STakashi Sakamoto case MIXER_OUTPUT_PAIRED_FLAG: 237ce69bed5STakashi Sakamoto { 238ce69bed5STakashi Sakamoto struct snd_firewire_motu_register_dsp_parameter *param = &parser->param; 239ce69bed5STakashi Sakamoto u8 mixer_ch = parser->mixer_ch; 240ce69bed5STakashi Sakamoto 241ce69bed5STakashi Sakamoto if (mixer_ch < SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT) { 242ce69bed5STakashi Sakamoto switch (msg_type) { 243ce69bed5STakashi Sakamoto case MIXER_OUTPUT_PAIRED_VOLUME: 244*4c9eda8fSTakashi Sakamoto if (param->mixer.output.paired_volume[mixer_ch] != val) { 245*4c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, mixer_ch, 0, val); 246ce69bed5STakashi Sakamoto param->mixer.output.paired_volume[mixer_ch] = val; 247*4c9eda8fSTakashi Sakamoto } 248ce69bed5STakashi Sakamoto break; 249ce69bed5STakashi Sakamoto case MIXER_OUTPUT_PAIRED_FLAG: 250*4c9eda8fSTakashi Sakamoto if (param->mixer.output.paired_flag[mixer_ch] != val) { 251*4c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, mixer_ch, 0, val); 252ce69bed5STakashi Sakamoto param->mixer.output.paired_flag[mixer_ch] = val; 253*4c9eda8fSTakashi Sakamoto } 254ce69bed5STakashi Sakamoto break; 255ce69bed5STakashi Sakamoto default: 256ce69bed5STakashi Sakamoto break; 257ce69bed5STakashi Sakamoto } 258ce69bed5STakashi Sakamoto } 259ce69bed5STakashi Sakamoto break; 260ce69bed5STakashi Sakamoto } 2616ca81d2bSTakashi Sakamoto case MAIN_OUTPUT_PAIRED_VOLUME: 262*4c9eda8fSTakashi Sakamoto if (parser->param.output.main_paired_volume != val) { 263*4c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, 0, 0, val); 2646ca81d2bSTakashi Sakamoto parser->param.output.main_paired_volume = val; 265*4c9eda8fSTakashi Sakamoto } 2666ca81d2bSTakashi Sakamoto break; 2676ca81d2bSTakashi Sakamoto case HP_OUTPUT_PAIRED_VOLUME: 268*4c9eda8fSTakashi Sakamoto if (parser->param.output.hp_paired_volume != val) { 269*4c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, 0, 0, val); 2706ca81d2bSTakashi Sakamoto parser->param.output.hp_paired_volume = val; 271*4c9eda8fSTakashi Sakamoto } 2726ca81d2bSTakashi Sakamoto break; 2736ca81d2bSTakashi Sakamoto case HP_OUTPUT_PAIRED_ASSIGNMENT: 274*4c9eda8fSTakashi Sakamoto if (parser->param.output.hp_paired_assignment != val) { 275*4c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, 0, 0, val); 2766ca81d2bSTakashi Sakamoto parser->param.output.hp_paired_assignment = val; 277*4c9eda8fSTakashi Sakamoto } 2786ca81d2bSTakashi Sakamoto break; 27941cc2338STakashi Sakamoto case LINE_INPUT_BOOST: 280*4c9eda8fSTakashi Sakamoto if (parser->param.line_input.boost_flag != val) { 281*4c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, 0, 0, val); 28241cc2338STakashi Sakamoto parser->param.line_input.boost_flag = val; 283*4c9eda8fSTakashi Sakamoto } 28441cc2338STakashi Sakamoto break; 28541cc2338STakashi Sakamoto case LINE_INPUT_NOMINAL_LEVEL: 286*4c9eda8fSTakashi Sakamoto if (parser->param.line_input.nominal_level_flag != val) { 287*4c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, 0, 0, val); 28841cc2338STakashi Sakamoto parser->param.line_input.nominal_level_flag = val; 289*4c9eda8fSTakashi Sakamoto } 29041cc2338STakashi Sakamoto break; 2917d843c49STakashi Sakamoto case INPUT_GAIN_AND_INVERT: 2927d843c49STakashi Sakamoto case INPUT_FLAG: 2937d843c49STakashi Sakamoto { 2947d843c49STakashi Sakamoto struct snd_firewire_motu_register_dsp_parameter *param = &parser->param; 2957d843c49STakashi Sakamoto u8 input_ch = parser->input_ch; 2967d843c49STakashi Sakamoto 2977d843c49STakashi Sakamoto if (parser->prev_msg_type != msg_type) 2987d843c49STakashi Sakamoto input_ch = 0; 2997d843c49STakashi Sakamoto else 3007d843c49STakashi Sakamoto ++input_ch; 3017d843c49STakashi Sakamoto 3027d843c49STakashi Sakamoto if (input_ch < SNDRV_FIREWIRE_MOTU_REGISTER_DSP_INPUT_COUNT) { 3037d843c49STakashi Sakamoto switch (msg_type) { 3047d843c49STakashi Sakamoto case INPUT_GAIN_AND_INVERT: 305*4c9eda8fSTakashi Sakamoto if (param->input.gain_and_invert[input_ch] != val) { 306*4c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, input_ch, 0, val); 3077d843c49STakashi Sakamoto param->input.gain_and_invert[input_ch] = val; 308*4c9eda8fSTakashi Sakamoto } 3097d843c49STakashi Sakamoto break; 3107d843c49STakashi Sakamoto case INPUT_FLAG: 311*4c9eda8fSTakashi Sakamoto if (param->input.flag[input_ch] != val) { 312*4c9eda8fSTakashi Sakamoto queue_event(motu, msg_type, input_ch, 0, val); 3137d843c49STakashi Sakamoto param->input.flag[input_ch] = val; 314*4c9eda8fSTakashi Sakamoto } 3157d843c49STakashi Sakamoto break; 3167d843c49STakashi Sakamoto default: 3177d843c49STakashi Sakamoto break; 3187d843c49STakashi Sakamoto } 3197d843c49STakashi Sakamoto parser->input_ch = input_ch; 3207d843c49STakashi Sakamoto } 3217d843c49STakashi Sakamoto break; 3227d843c49STakashi Sakamoto } 3237d843c49STakashi Sakamoto case UNKNOWN_0: 3247d843c49STakashi Sakamoto case UNKNOWN_2: 3257d843c49STakashi Sakamoto break; 326bea36afaSTakashi Sakamoto case METER: 327bea36afaSTakashi Sakamoto { 328bea36afaSTakashi Sakamoto u8 pos; 329bea36afaSTakashi Sakamoto 330bea36afaSTakashi Sakamoto if (!meter_pos_quirk) 331bea36afaSTakashi Sakamoto pos = b[MSG_METER_IDX_POS]; 332bea36afaSTakashi Sakamoto else 333bea36afaSTakashi Sakamoto pos = b[MSG_METER_IDX_POS_4PRE_AE]; 334bea36afaSTakashi Sakamoto 335bea36afaSTakashi Sakamoto if (pos < 0x80) 336bea36afaSTakashi Sakamoto pos &= 0x1f; 337bea36afaSTakashi Sakamoto else 338bea36afaSTakashi Sakamoto pos = (pos & 0x1f) + 20; 339bea36afaSTakashi Sakamoto parser->meter.data[pos] = val; 3407d843c49STakashi Sakamoto // The message for meter is interruptible to the series of other 3417d843c49STakashi Sakamoto // types of messages. Don't cache it. 3427d843c49STakashi Sakamoto fallthrough; 343bea36afaSTakashi Sakamoto } 3447d843c49STakashi Sakamoto case INVALID: 345bea36afaSTakashi Sakamoto default: 3467d843c49STakashi Sakamoto // Don't cache it. 3477d843c49STakashi Sakamoto continue; 348bea36afaSTakashi Sakamoto } 3497d843c49STakashi Sakamoto 3507d843c49STakashi Sakamoto parser->prev_msg_type = msg_type; 351bea36afaSTakashi Sakamoto } 352bea36afaSTakashi Sakamoto } 35358b62ab7STakashi Sakamoto 35458b62ab7STakashi Sakamoto spin_unlock_irqrestore(&parser->lock, flags); 35558b62ab7STakashi Sakamoto } 35658b62ab7STakashi Sakamoto 35758b62ab7STakashi Sakamoto void snd_motu_register_dsp_message_parser_copy_meter(struct snd_motu *motu, 35858b62ab7STakashi Sakamoto struct snd_firewire_motu_register_dsp_meter *meter) 35958b62ab7STakashi Sakamoto { 36058b62ab7STakashi Sakamoto struct msg_parser *parser = motu->message_parser; 36158b62ab7STakashi Sakamoto unsigned long flags; 36258b62ab7STakashi Sakamoto 36358b62ab7STakashi Sakamoto spin_lock_irqsave(&parser->lock, flags); 36458b62ab7STakashi Sakamoto memcpy(meter, &parser->meter, sizeof(*meter)); 36558b62ab7STakashi Sakamoto spin_unlock_irqrestore(&parser->lock, flags); 366bea36afaSTakashi Sakamoto } 367ca15a09cSTakashi Sakamoto 368ca15a09cSTakashi Sakamoto void snd_motu_register_dsp_message_parser_copy_parameter(struct snd_motu *motu, 369ca15a09cSTakashi Sakamoto struct snd_firewire_motu_register_dsp_parameter *param) 370ca15a09cSTakashi Sakamoto { 371ca15a09cSTakashi Sakamoto struct msg_parser *parser = motu->message_parser; 372ca15a09cSTakashi Sakamoto unsigned long flags; 373ca15a09cSTakashi Sakamoto 374ca15a09cSTakashi Sakamoto spin_lock_irqsave(&parser->lock, flags); 375ca15a09cSTakashi Sakamoto memcpy(param, &parser->param, sizeof(*param)); 376ca15a09cSTakashi Sakamoto spin_unlock_irqrestore(&parser->lock, flags); 377ca15a09cSTakashi Sakamoto } 378