diff options
Diffstat (limited to 'sound/firewire/bebob/bebob_focusrite.c')
| -rw-r--r-- | sound/firewire/bebob/bebob_focusrite.c | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/sound/firewire/bebob/bebob_focusrite.c b/sound/firewire/bebob/bebob_focusrite.c new file mode 100644 index 000000000000..45a0eed6d5b1 --- /dev/null +++ b/sound/firewire/bebob/bebob_focusrite.c @@ -0,0 +1,279 @@ +/* + * bebob_focusrite.c - a part of driver for BeBoB based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "./bebob.h" + +#define ANA_IN "Analog In" +#define DIG_IN "Digital In" +#define ANA_OUT "Analog Out" +#define DIG_OUT "Digital Out" +#define STM_IN "Stream In" + +#define SAFFIRE_ADDRESS_BASE 0x000100000000ULL + +#define SAFFIRE_OFFSET_CLOCK_SOURCE 0x00f8 +#define SAFFIREPRO_OFFSET_CLOCK_SOURCE 0x0174 + +/* whether sync to external device or not */ +#define SAFFIRE_OFFSET_CLOCK_SYNC_EXT 0x013c +#define SAFFIRE_LE_OFFSET_CLOCK_SYNC_EXT 0x0432 +#define SAFFIREPRO_OFFSET_CLOCK_SYNC_EXT 0x0164 + +#define SAFFIRE_CLOCK_SOURCE_INTERNAL 0 +#define SAFFIRE_CLOCK_SOURCE_SPDIF 1 + +/* '1' is absent, why... */ +#define SAFFIREPRO_CLOCK_SOURCE_INTERNAL 0 +#define SAFFIREPRO_CLOCK_SOURCE_SPDIF 2 +#define SAFFIREPRO_CLOCK_SOURCE_ADAT1 3 +#define SAFFIREPRO_CLOCK_SOURCE_ADAT2 4 +#define SAFFIREPRO_CLOCK_SOURCE_WORDCLOCK 5 + +/* S/PDIF, ADAT1, ADAT2 is enabled or not. three quadlets */ +#define SAFFIREPRO_ENABLE_DIG_IFACES 0x01a4 + +/* saffirepro has its own parameter for sampling frequency */ +#define SAFFIREPRO_RATE_NOREBOOT 0x01cc +/* index is the value for this register */ +static const unsigned int rates[] = { + [0] = 0, + [1] = 44100, + [2] = 48000, + [3] = 88200, + [4] = 96000, + [5] = 176400, + [6] = 192000 +}; + +/* saffire(no label)/saffire LE has metering */ +#define SAFFIRE_OFFSET_METER 0x0100 +#define SAFFIRE_LE_OFFSET_METER 0x0168 + +static inline int +saffire_read_block(struct snd_bebob *bebob, u64 offset, + u32 *buf, unsigned int size) +{ + unsigned int i; + int err; + __be32 *tmp = (__be32 *)buf; + + err = snd_fw_transaction(bebob->unit, TCODE_READ_BLOCK_REQUEST, + SAFFIRE_ADDRESS_BASE + offset, + tmp, size, 0); + if (err < 0) + goto end; + + for (i = 0; i < size / sizeof(u32); i++) + buf[i] = be32_to_cpu(tmp[i]); +end: + return err; +} + +static inline int +saffire_read_quad(struct snd_bebob *bebob, u64 offset, u32 *value) +{ + int err; + __be32 tmp; + + err = snd_fw_transaction(bebob->unit, TCODE_READ_QUADLET_REQUEST, + SAFFIRE_ADDRESS_BASE + offset, + &tmp, sizeof(__be32), 0); + if (err < 0) + goto end; + + *value = be32_to_cpu(tmp); +end: + return err; +} + +static inline int +saffire_write_quad(struct snd_bebob *bebob, u64 offset, u32 value) +{ + __be32 data = cpu_to_be32(value); + + return snd_fw_transaction(bebob->unit, TCODE_WRITE_QUADLET_REQUEST, + SAFFIRE_ADDRESS_BASE + offset, + &data, sizeof(__be32), 0); +} + +static char *const saffirepro_26_clk_src_labels[] = { + SND_BEBOB_CLOCK_INTERNAL, "S/PDIF", "ADAT1", "ADAT2", "Word Clock" +}; + +static char *const saffirepro_10_clk_src_labels[] = { + SND_BEBOB_CLOCK_INTERNAL, "S/PDIF", "Word Clock" +}; +static int +saffirepro_both_clk_freq_get(struct snd_bebob *bebob, unsigned int *rate) +{ + u32 id; + int err; + + err = saffire_read_quad(bebob, SAFFIREPRO_RATE_NOREBOOT, &id); + if (err < 0) + goto end; + if (id >= ARRAY_SIZE(rates)) + err = -EIO; + else + *rate = rates[id]; +end: + return err; +} +static int +saffirepro_both_clk_freq_set(struct snd_bebob *bebob, unsigned int rate) +{ + u32 id; + + for (id = 0; id < ARRAY_SIZE(rates); id++) { + if (rates[id] == rate) + break; + } + if (id == ARRAY_SIZE(rates)) + return -EINVAL; + + return saffire_write_quad(bebob, SAFFIREPRO_RATE_NOREBOOT, id); +} +static int +saffirepro_both_clk_src_get(struct snd_bebob *bebob, unsigned int *id) +{ + int err; + u32 value; + + err = saffire_read_quad(bebob, SAFFIREPRO_OFFSET_CLOCK_SOURCE, &value); + if (err < 0) + goto end; + + if (bebob->spec->clock->labels == saffirepro_10_clk_src_labels) { + if (value == SAFFIREPRO_CLOCK_SOURCE_WORDCLOCK) + *id = 2; + else if (value == SAFFIREPRO_CLOCK_SOURCE_SPDIF) + *id = 1; + } else if (value > 1) { + *id = value - 1; + } +end: + return err; +} + +struct snd_bebob_spec saffire_le_spec; +static char *const saffire_both_clk_src_labels[] = { + SND_BEBOB_CLOCK_INTERNAL, "S/PDIF" +}; +static int +saffire_both_clk_src_get(struct snd_bebob *bebob, unsigned int *id) +{ + int err; + u32 value; + + err = saffire_read_quad(bebob, SAFFIRE_OFFSET_CLOCK_SOURCE, &value); + if (err >= 0) + *id = 0xff & value; + + return err; +}; +static char *const saffire_le_meter_labels[] = { + ANA_IN, ANA_IN, DIG_IN, + ANA_OUT, ANA_OUT, ANA_OUT, ANA_OUT, + STM_IN, STM_IN +}; +static char *const saffire_meter_labels[] = { + ANA_IN, ANA_IN, + STM_IN, STM_IN, STM_IN, STM_IN, STM_IN, +}; +static int +saffire_meter_get(struct snd_bebob *bebob, u32 *buf, unsigned int size) +{ + struct snd_bebob_meter_spec *spec = bebob->spec->meter; + unsigned int channels; + u64 offset; + int err; + + if (spec->labels == saffire_le_meter_labels) + offset = SAFFIRE_LE_OFFSET_METER; + else + offset = SAFFIRE_OFFSET_METER; + + channels = spec->num * 2; + if (size < channels * sizeof(u32)) + return -EIO; + + err = saffire_read_block(bebob, offset, buf, size); + if (err >= 0 && spec->labels == saffire_le_meter_labels) { + swap(buf[1], buf[3]); + swap(buf[2], buf[3]); + swap(buf[3], buf[4]); + + swap(buf[7], buf[10]); + swap(buf[8], buf[10]); + swap(buf[9], buf[11]); + swap(buf[11], buf[12]); + + swap(buf[15], buf[16]); + } + + return err; +} + +static struct snd_bebob_rate_spec saffirepro_both_rate_spec = { + .get = &saffirepro_both_clk_freq_get, + .set = &saffirepro_both_clk_freq_set, +}; +/* Saffire Pro 26 I/O */ +static struct snd_bebob_clock_spec saffirepro_26_clk_spec = { + .num = ARRAY_SIZE(saffirepro_26_clk_src_labels), + .labels = saffirepro_26_clk_src_labels, + .get = &saffirepro_both_clk_src_get, +}; +struct snd_bebob_spec saffirepro_26_spec = { + .clock = &saffirepro_26_clk_spec, + .rate = &saffirepro_both_rate_spec, + .meter = NULL +}; +/* Saffire Pro 10 I/O */ +static struct snd_bebob_clock_spec saffirepro_10_clk_spec = { + .num = ARRAY_SIZE(saffirepro_10_clk_src_labels), + .labels = saffirepro_10_clk_src_labels, + .get = &saffirepro_both_clk_src_get, +}; +struct snd_bebob_spec saffirepro_10_spec = { + .clock = &saffirepro_10_clk_spec, + .rate = &saffirepro_both_rate_spec, + .meter = NULL +}; + +static struct snd_bebob_rate_spec saffire_both_rate_spec = { + .get = &snd_bebob_stream_get_rate, + .set = &snd_bebob_stream_set_rate, +}; +static struct snd_bebob_clock_spec saffire_both_clk_spec = { + .num = ARRAY_SIZE(saffire_both_clk_src_labels), + .labels = saffire_both_clk_src_labels, + .get = &saffire_both_clk_src_get, +}; +/* Saffire LE */ +static struct snd_bebob_meter_spec saffire_le_meter_spec = { + .num = ARRAY_SIZE(saffire_le_meter_labels), + .labels = saffire_le_meter_labels, + .get = &saffire_meter_get, +}; +struct snd_bebob_spec saffire_le_spec = { + .clock = &saffire_both_clk_spec, + .rate = &saffire_both_rate_spec, + .meter = &saffire_le_meter_spec +}; +/* Saffire */ +static struct snd_bebob_meter_spec saffire_meter_spec = { + .num = ARRAY_SIZE(saffire_meter_labels), + .labels = saffire_meter_labels, + .get = &saffire_meter_get, +}; +struct snd_bebob_spec saffire_spec = { + .clock = &saffire_both_clk_spec, + .rate = &saffire_both_rate_spec, + .meter = &saffire_meter_spec +}; |