314 строки
8.2 KiB
C
314 строки
8.2 KiB
C
/*
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* bebob_focusrite.c - a part of driver for BeBoB based devices
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*
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* Copyright (c) 2013-2014 Takashi Sakamoto
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*
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* Licensed under the terms of the GNU General Public License, version 2.
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*/
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#include "./bebob.h"
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#define ANA_IN "Analog In"
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#define DIG_IN "Digital In"
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#define ANA_OUT "Analog Out"
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#define DIG_OUT "Digital Out"
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#define STM_IN "Stream In"
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#define SAFFIRE_ADDRESS_BASE 0x000100000000ULL
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#define SAFFIRE_OFFSET_CLOCK_SOURCE 0x00f8
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#define SAFFIREPRO_OFFSET_CLOCK_SOURCE 0x0174
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/* whether sync to external device or not */
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#define SAFFIRE_OFFSET_CLOCK_SYNC_EXT 0x013c
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#define SAFFIRE_LE_OFFSET_CLOCK_SYNC_EXT 0x0432
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#define SAFFIREPRO_OFFSET_CLOCK_SYNC_EXT 0x0164
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#define SAFFIRE_CLOCK_SOURCE_INTERNAL 0
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#define SAFFIRE_CLOCK_SOURCE_SPDIF 1
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/* clock sources as returned from register of Saffire Pro 10 and 26 */
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#define SAFFIREPRO_CLOCK_SOURCE_INTERNAL 0
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#define SAFFIREPRO_CLOCK_SOURCE_SKIP 1 /* never used on hardware */
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#define SAFFIREPRO_CLOCK_SOURCE_SPDIF 2
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#define SAFFIREPRO_CLOCK_SOURCE_ADAT1 3 /* not used on s.pro. 10 */
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#define SAFFIREPRO_CLOCK_SOURCE_ADAT2 4 /* not used on s.pro. 10 */
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#define SAFFIREPRO_CLOCK_SOURCE_WORDCLOCK 5
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#define SAFFIREPRO_CLOCK_SOURCE_COUNT 6
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/* S/PDIF, ADAT1, ADAT2 is enabled or not. three quadlets */
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#define SAFFIREPRO_ENABLE_DIG_IFACES 0x01a4
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/* saffirepro has its own parameter for sampling frequency */
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#define SAFFIREPRO_RATE_NOREBOOT 0x01cc
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/* index is the value for this register */
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static const unsigned int rates[] = {
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[0] = 0,
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[1] = 44100,
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[2] = 48000,
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[3] = 88200,
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[4] = 96000,
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[5] = 176400,
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[6] = 192000
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};
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/* saffire(no label)/saffire LE has metering */
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#define SAFFIRE_OFFSET_METER 0x0100
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#define SAFFIRE_LE_OFFSET_METER 0x0168
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static inline int
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saffire_read_block(struct snd_bebob *bebob, u64 offset,
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u32 *buf, unsigned int size)
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{
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unsigned int i;
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int err;
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__be32 *tmp = (__be32 *)buf;
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err = snd_fw_transaction(bebob->unit, TCODE_READ_BLOCK_REQUEST,
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SAFFIRE_ADDRESS_BASE + offset,
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tmp, size, 0);
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if (err < 0)
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goto end;
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for (i = 0; i < size / sizeof(u32); i++)
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buf[i] = be32_to_cpu(tmp[i]);
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end:
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return err;
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}
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static inline int
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saffire_read_quad(struct snd_bebob *bebob, u64 offset, u32 *value)
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{
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int err;
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__be32 tmp;
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err = snd_fw_transaction(bebob->unit, TCODE_READ_QUADLET_REQUEST,
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SAFFIRE_ADDRESS_BASE + offset,
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&tmp, sizeof(__be32), 0);
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if (err < 0)
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goto end;
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*value = be32_to_cpu(tmp);
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end:
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return err;
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}
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static inline int
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saffire_write_quad(struct snd_bebob *bebob, u64 offset, u32 value)
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{
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__be32 data = cpu_to_be32(value);
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return snd_fw_transaction(bebob->unit, TCODE_WRITE_QUADLET_REQUEST,
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SAFFIRE_ADDRESS_BASE + offset,
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&data, sizeof(__be32), 0);
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}
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static const char *const saffirepro_10_clk_src_labels[] = {
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SND_BEBOB_CLOCK_INTERNAL, "S/PDIF", "Word Clock"
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};
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static const char *const saffirepro_26_clk_src_labels[] = {
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SND_BEBOB_CLOCK_INTERNAL, "S/PDIF", "ADAT1", "ADAT2", "Word Clock"
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};
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/* Value maps between registers and labels for SaffirePro 10/26. */
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static const signed char saffirepro_clk_maps[][SAFFIREPRO_CLOCK_SOURCE_COUNT] = {
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/* SaffirePro 10 */
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[0] = {
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[SAFFIREPRO_CLOCK_SOURCE_INTERNAL] = 0,
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[SAFFIREPRO_CLOCK_SOURCE_SKIP] = -1, /* not supported */
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[SAFFIREPRO_CLOCK_SOURCE_SPDIF] = 1,
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[SAFFIREPRO_CLOCK_SOURCE_ADAT1] = -1, /* not supported */
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[SAFFIREPRO_CLOCK_SOURCE_ADAT2] = -1, /* not supported */
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[SAFFIREPRO_CLOCK_SOURCE_WORDCLOCK] = 2,
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},
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/* SaffirePro 26 */
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[1] = {
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[SAFFIREPRO_CLOCK_SOURCE_INTERNAL] = 0,
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[SAFFIREPRO_CLOCK_SOURCE_SKIP] = -1, /* not supported */
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[SAFFIREPRO_CLOCK_SOURCE_SPDIF] = 1,
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[SAFFIREPRO_CLOCK_SOURCE_ADAT1] = 2,
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[SAFFIREPRO_CLOCK_SOURCE_ADAT2] = 3,
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[SAFFIREPRO_CLOCK_SOURCE_WORDCLOCK] = 4,
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}
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};
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static int
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saffirepro_both_clk_freq_get(struct snd_bebob *bebob, unsigned int *rate)
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{
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u32 id;
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int err;
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err = saffire_read_quad(bebob, SAFFIREPRO_RATE_NOREBOOT, &id);
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if (err < 0)
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goto end;
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if (id >= ARRAY_SIZE(rates))
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err = -EIO;
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else
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*rate = rates[id];
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end:
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return err;
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}
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static int
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saffirepro_both_clk_freq_set(struct snd_bebob *bebob, unsigned int rate)
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{
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u32 id;
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for (id = 0; id < ARRAY_SIZE(rates); id++) {
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if (rates[id] == rate)
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break;
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}
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if (id == ARRAY_SIZE(rates))
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return -EINVAL;
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return saffire_write_quad(bebob, SAFFIREPRO_RATE_NOREBOOT, id);
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}
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/*
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* query hardware for current clock source, return our internally
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* used clock index in *id, depending on hardware.
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*/
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static int
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saffirepro_both_clk_src_get(struct snd_bebob *bebob, unsigned int *id)
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{
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int err;
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u32 value; /* clock source read from hw register */
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const signed char *map;
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err = saffire_read_quad(bebob, SAFFIREPRO_OFFSET_CLOCK_SOURCE, &value);
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if (err < 0)
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goto end;
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/* depending on hardware, use a different mapping */
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if (bebob->spec->clock->labels == saffirepro_10_clk_src_labels)
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map = saffirepro_clk_maps[0];
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else
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map = saffirepro_clk_maps[1];
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/* In a case that this driver cannot handle the value of register. */
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if (value >= SAFFIREPRO_CLOCK_SOURCE_COUNT || map[value] < 0) {
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err = -EIO;
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goto end;
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}
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*id = (unsigned int)map[value];
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end:
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return err;
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}
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struct snd_bebob_spec saffire_le_spec;
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static const char *const saffire_both_clk_src_labels[] = {
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SND_BEBOB_CLOCK_INTERNAL, "S/PDIF"
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};
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static int
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saffire_both_clk_src_get(struct snd_bebob *bebob, unsigned int *id)
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{
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int err;
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u32 value;
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err = saffire_read_quad(bebob, SAFFIRE_OFFSET_CLOCK_SOURCE, &value);
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if (err >= 0)
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*id = 0xff & value;
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return err;
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};
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static const char *const saffire_le_meter_labels[] = {
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ANA_IN, ANA_IN, DIG_IN,
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ANA_OUT, ANA_OUT, ANA_OUT, ANA_OUT,
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STM_IN, STM_IN
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};
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static const char *const saffire_meter_labels[] = {
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ANA_IN, ANA_IN,
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STM_IN, STM_IN, STM_IN, STM_IN, STM_IN,
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};
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static int
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saffire_meter_get(struct snd_bebob *bebob, u32 *buf, unsigned int size)
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{
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struct snd_bebob_meter_spec *spec = bebob->spec->meter;
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unsigned int channels;
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u64 offset;
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int err;
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if (spec->labels == saffire_le_meter_labels)
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offset = SAFFIRE_LE_OFFSET_METER;
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else
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offset = SAFFIRE_OFFSET_METER;
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channels = spec->num * 2;
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if (size < channels * sizeof(u32))
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return -EIO;
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err = saffire_read_block(bebob, offset, buf, size);
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if (err >= 0 && spec->labels == saffire_le_meter_labels) {
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swap(buf[1], buf[3]);
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swap(buf[2], buf[3]);
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swap(buf[3], buf[4]);
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swap(buf[7], buf[10]);
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swap(buf[8], buf[10]);
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swap(buf[9], buf[11]);
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swap(buf[11], buf[12]);
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swap(buf[15], buf[16]);
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}
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return err;
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}
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static struct snd_bebob_rate_spec saffirepro_both_rate_spec = {
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.get = &saffirepro_both_clk_freq_get,
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.set = &saffirepro_both_clk_freq_set,
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};
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/* Saffire Pro 26 I/O */
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static struct snd_bebob_clock_spec saffirepro_26_clk_spec = {
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.num = ARRAY_SIZE(saffirepro_26_clk_src_labels),
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.labels = saffirepro_26_clk_src_labels,
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.get = &saffirepro_both_clk_src_get,
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};
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struct snd_bebob_spec saffirepro_26_spec = {
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.clock = &saffirepro_26_clk_spec,
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.rate = &saffirepro_both_rate_spec,
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.meter = NULL
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};
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/* Saffire Pro 10 I/O */
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static struct snd_bebob_clock_spec saffirepro_10_clk_spec = {
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.num = ARRAY_SIZE(saffirepro_10_clk_src_labels),
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.labels = saffirepro_10_clk_src_labels,
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.get = &saffirepro_both_clk_src_get,
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};
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struct snd_bebob_spec saffirepro_10_spec = {
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.clock = &saffirepro_10_clk_spec,
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.rate = &saffirepro_both_rate_spec,
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.meter = NULL
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};
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static struct snd_bebob_rate_spec saffire_both_rate_spec = {
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.get = &snd_bebob_stream_get_rate,
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.set = &snd_bebob_stream_set_rate,
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};
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static struct snd_bebob_clock_spec saffire_both_clk_spec = {
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.num = ARRAY_SIZE(saffire_both_clk_src_labels),
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.labels = saffire_both_clk_src_labels,
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.get = &saffire_both_clk_src_get,
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};
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/* Saffire LE */
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static struct snd_bebob_meter_spec saffire_le_meter_spec = {
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.num = ARRAY_SIZE(saffire_le_meter_labels),
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.labels = saffire_le_meter_labels,
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.get = &saffire_meter_get,
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};
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struct snd_bebob_spec saffire_le_spec = {
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.clock = &saffire_both_clk_spec,
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.rate = &saffire_both_rate_spec,
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.meter = &saffire_le_meter_spec
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};
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/* Saffire */
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static struct snd_bebob_meter_spec saffire_meter_spec = {
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.num = ARRAY_SIZE(saffire_meter_labels),
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.labels = saffire_meter_labels,
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.get = &saffire_meter_get,
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};
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struct snd_bebob_spec saffire_spec = {
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.clock = &saffire_both_clk_spec,
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.rate = &saffire_both_rate_spec,
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.meter = &saffire_meter_spec
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};
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