This patch adds support for the Processig Units defined in the UAC3 spec. The main difference with the previous specs is the lack of on/off switches in the controls for these units and the addiction of the new Multi Function Processing Unit. The current version of the UAC3 spec doesn't define any useful controls for the new Multi Function Processing Unit so no control will get created once this unit is parsed.
Unified · Split
| @@ -387,6 +387,12 @@ struct uac3_interrupt_data_msg { · 386 unmodified lines | ||
| 387 | 387 | #define UAC3_CONNECTORS 0x0f |
| 388 | 388 | #define UAC3_POWER_DOMAIN 0x10 |
| 389 | 389 | |
| 390 | +/* A.20 PROCESSING UNIT PROCESS TYPES */ | |
| 391 | +#define UAC3_PROCESS_UNDEFINED 0x00 | |
| 392 | +#define UAC3_PROCESS_UP_DOWNMIX 0x01 | |
| 393 | +#define UAC3_PROCESS_STEREO_EXTENDER 0x02 | |
| 394 | +#define UAC3_PROCESS_MULTI_FUNCTION 0x03 | |
| 395 | + | |
| 390 | 396 | /* A.22 AUDIO CLASS-SPECIFIC REQUEST CODES */ |
| 391 | 397 | /* see audio-v2.h for the rest, which is identical to v2 */ |
| 392 | 398 | #define UAC3_CS_REQ_INTEN 0x04 |
| @@ -406,6 +412,15 @@ struct uac3_interrupt_data_msg { · 13 unmodified lines | ||
| 406 | 412 | #define UAC3_TE_OVERFLOW 0x04 |
| 407 | 413 | #define UAC3_TE_LATENCY 0x05 |
| 408 | 414 | |
| 415 | +/* A.23.10 PROCESSING UNITS CONTROL SELECTROS */ | |
| 416 | + | |
| 417 | +/* Up/Down Mixer */ | |
| 418 | +#define UAC3_UD_MODE_SELECT 0x01 | |
| 419 | + | |
| 420 | +/* Stereo Extender */ | |
| 421 | +#define UAC3_EXT_WIDTH_CONTROL 0x01 | |
| 422 | + | |
| 423 | + | |
| 409 | 424 | /* BADD predefined Unit/Terminal values */ |
| 410 | 425 | #define UAC3_BADD_IT_ID1 1 /* Input Terminal ID1: bTerminalID = 1 */ |
| 411 | 426 | #define UAC3_BADD_FU_ID2 2 /* Feature Unit ID2: bUnitID = 2 */ |
| @@ -390,33 +390,64 @@ static inline __u8 uac_processing_unit_iChannelNames(struct uac_processing_unit_ · 389 unmodified lines | ||
| 390 | 390 | static inline __u8 uac_processing_unit_bControlSize(struct uac_processing_unit_descriptor *desc, |
| 391 | 391 | int protocol) |
| 392 | 392 | { |
| 393 | − return (protocol == UAC_VERSION_1) ? | |
| 394 | − desc->baSourceID[desc->bNrInPins + 4] : | |
| 395 | − 2; /* in UAC2, this value is constant */ | |
| 393 | + switch (protocol) { | |
| 394 | + case UAC_VERSION_1: | |
| 395 | + return desc->baSourceID[desc->bNrInPins + 4]; | |
| 396 | + case UAC_VERSION_2: | |
| 397 | + return 2; /* in UAC2, this value is constant */ | |
| 398 | + case UAC_VERSION_3: | |
| 399 | + return 4; /* in UAC3, this value is constant */ | |
| 400 | + default: | |
| 401 | + return 1; | |
| 402 | + } | |
| 396 | 403 | } |
| 397 | 404 | |
| 398 | 405 | static inline __u8 *uac_processing_unit_bmControls(struct uac_processing_unit_descriptor *desc, |
| 399 | 406 | int protocol) |
| 400 | 407 | { |
| 401 | − return (protocol == UAC_VERSION_1) ? | |
| 402 | − &desc->baSourceID[desc->bNrInPins + 5] : | |
| 403 | − &desc->baSourceID[desc->bNrInPins + 6]; | |
| 408 | + switch (protocol) { | |
| 409 | + case UAC_VERSION_1: | |
| 410 | + return &desc->baSourceID[desc->bNrInPins + 5]; | |
| 411 | + case UAC_VERSION_2: | |
| 412 | + return &desc->baSourceID[desc->bNrInPins + 6]; | |
| 413 | + case UAC_VERSION_3: | |
| 414 | + return &desc->baSourceID[desc->bNrInPins + 2]; | |
| 415 | + default: | |
| 416 | + return NULL; | |
| 417 | + } | |
| 404 | 418 | } |
| 405 | 419 | |
| 406 | 420 | static inline __u8 uac_processing_unit_iProcessing(struct uac_processing_unit_descriptor *desc, |
| 407 | 421 | int protocol) |
| 408 | 422 | { |
| 409 | 423 | __u8 control_size = uac_processing_unit_bControlSize(desc, protocol); |
| 410 | − return *(uac_processing_unit_bmControls(desc, protocol) | |
| 411 | − + control_size); | |
| 424 | + | |
| 425 | + switch (protocol) { | |
| 426 | + case UAC_VERSION_1: | |
| 427 | + case UAC_VERSION_2: | |
| 428 | + default: | |
| 429 | + return *(uac_processing_unit_bmControls(desc, protocol) | |
| 430 | + + control_size); | |
| 431 | + case UAC_VERSION_3: | |
| 432 | + return 0; /* UAC3 does not have this field */ | |
| 433 | + } | |
| 412 | 434 | } |
| 413 | 435 | |
| 414 | 436 | static inline __u8 *uac_processing_unit_specific(struct uac_processing_unit_descriptor *desc, |
| 415 | 437 | int protocol) |
| 416 | 438 | { |
| 417 | 439 | __u8 control_size = uac_processing_unit_bControlSize(desc, protocol); |
| 418 | − return uac_processing_unit_bmControls(desc, protocol) | |
| 440 | + | |
| 441 | + switch (protocol) { | |
| 442 | + case UAC_VERSION_1: | |
| 443 | + case UAC_VERSION_2: | |
| 444 | + default: | |
| 445 | + return uac_processing_unit_bmControls(desc, protocol) | |
| 419 | 446 | + control_size + 1; |
| 447 | + case UAC_VERSION_3: | |
| 448 | + return uac_processing_unit_bmControls(desc, protocol) | |
| 449 | + + control_size; | |
| 450 | + } | |
| 420 | 451 | } |
| 421 | 452 | |
| 422 | 453 | /* 4.5.2 Class-Specific AS Interface Descriptor */ |
| @@ -953,6 +953,23 @@ static int check_input_term(struct mixer_build *state, int id, · 952 unmodified lines | ||
| 953 | 953 | |
| 954 | 954 | return 0; |
| 955 | 955 | } |
| 956 | + case UAC3_PROCESSING_UNIT: { | |
| 957 | + struct uac_processing_unit_descriptor *d = p1; | |
| 958 | + | |
| 959 | + if (!d->bNrInPins) | |
| 960 | + return -EINVAL; | |
| 961 | + | |
| 962 | + /* call recursively to retrieve the channel info */ | |
| 963 | + err = check_input_term(state, d->baSourceID[0], term); | |
| 964 | + if (err < 0) | |
| 965 | + return err; | |
| 966 | + | |
| 967 | + term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
| 968 | + term->id = id; | |
| 969 | + term->name = 0; /* TODO: UAC3 Class-specific strings */ | |
| 970 | + | |
| 971 | + return 0; | |
| 972 | + } | |
| 956 | 973 | default: |
| 957 | 974 | return -ENODEV; |
| 958 | 975 | } |
| @@ -2180,6 +2197,11 @@ struct procunit_info { · 1221 unmodified lines | ||
| 2180 | 2197 | struct procunit_value_info *values; |
| 2181 | 2198 | }; |
| 2182 | 2199 | |
| 2200 | +static struct procunit_value_info undefined_proc_info[] = { | |
| 2201 | + { 0x00, "Control Undefined", 0 }, | |
| 2202 | + { 0 } | |
| 2203 | +}; | |
| 2204 | + | |
| 2183 | 2205 | static struct procunit_value_info updown_proc_info[] = { |
| 2184 | 2206 | { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
| 2185 | 2207 | { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, |
| @@ -2228,6 +2250,23 @@ static struct procunit_info procunits[] = { · 42 unmodified lines | ||
| 2228 | 2250 | { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, |
| 2229 | 2251 | { 0 }, |
| 2230 | 2252 | }; |
| 2253 | + | |
| 2254 | +static struct procunit_value_info uac3_updown_proc_info[] = { | |
| 2255 | + { UAC3_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
| 2256 | + { 0 } | |
| 2257 | +}; | |
| 2258 | +static struct procunit_value_info uac3_stereo_ext_proc_info[] = { | |
| 2259 | + { UAC3_EXT_WIDTH_CONTROL, "Width Control", USB_MIXER_U8 }, | |
| 2260 | + { 0 } | |
| 2261 | +}; | |
| 2262 | + | |
| 2263 | +static struct procunit_info uac3_procunits[] = { | |
| 2264 | + { UAC3_PROCESS_UP_DOWNMIX, "Up Down", uac3_updown_proc_info }, | |
| 2265 | + { UAC3_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", uac3_stereo_ext_proc_info }, | |
| 2266 | + { UAC3_PROCESS_MULTI_FUNCTION, "Multi-Function", undefined_proc_info }, | |
| 2267 | + { 0 }, | |
| 2268 | +}; | |
| 2269 | + | |
| 2231 | 2270 | /* |
| 2232 | 2271 | * predefined data for extension units |
| 2233 | 2272 | */ |
| @@ -2388,8 +2427,16 @@ static int build_audio_procunit(struct mixer_build *state, int unitid, · 154 unmodified lines | ||
| 2388 | 2427 | static int parse_audio_processing_unit(struct mixer_build *state, int unitid, |
| 2389 | 2428 | void *raw_desc) |
| 2390 | 2429 | { |
| 2391 | − return build_audio_procunit(state, unitid, raw_desc, | |
| 2392 | − procunits, "Processing Unit"); | |
| 2430 | + switch (state->mixer->protocol) { | |
| 2431 | + case UAC_VERSION_1: | |
| 2432 | + case UAC_VERSION_2: | |
| 2433 | + default: | |
| 2434 | + return build_audio_procunit(state, unitid, raw_desc, | |
| 2435 | + procunits, "Processing Unit"); | |
| 2436 | + case UAC_VERSION_3: | |
| 2437 | + return build_audio_procunit(state, unitid, raw_desc, | |
| 2438 | + uac3_procunits, "Processing Unit"); | |
| 2439 | + } | |
| 2393 | 2440 | } |
| 2394 | 2441 | |
| 2395 | 2442 | static int parse_audio_extension_unit(struct mixer_build *state, int unitid, |