diff options
Diffstat (limited to 'sound/soc/codecs')
| -rw-r--r-- | sound/soc/codecs/adau1701.c | 33 | ||||
| -rw-r--r-- | sound/soc/codecs/adau1761.c | 21 | ||||
| -rw-r--r-- | sound/soc/codecs/adau1781.c | 30 | ||||
| -rw-r--r-- | sound/soc/codecs/adau17x1.c | 54 | ||||
| -rw-r--r-- | sound/soc/codecs/adau17x1.h | 9 | ||||
| -rw-r--r-- | sound/soc/codecs/sigmadsp-i2c.c | 52 | ||||
| -rw-r--r-- | sound/soc/codecs/sigmadsp-regmap.c | 38 | ||||
| -rw-r--r-- | sound/soc/codecs/sigmadsp.c | 255 | ||||
| -rw-r--r-- | sound/soc/codecs/sigmadsp.h | 53 |
9 files changed, 424 insertions, 121 deletions
diff --git a/sound/soc/codecs/adau1701.c b/sound/soc/codecs/adau1701.c index 370b742117ef..05d5eb5984b6 100644 --- a/sound/soc/codecs/adau1701.c +++ b/sound/soc/codecs/adau1701.c @@ -103,6 +103,8 @@ struct adau1701 { unsigned int sysclk; struct regmap *regmap; u8 pin_config[12]; + + struct sigmadsp *sigmadsp; }; static const struct snd_kcontrol_new adau1701_controls[] = { @@ -238,12 +240,14 @@ static int adau1701_reg_read(void *context, unsigned int reg, return 0; } -static int adau1701_reset(struct snd_soc_codec *codec, unsigned int clkdiv) +static int adau1701_reset(struct snd_soc_codec *codec, unsigned int clkdiv, + unsigned int rate) { struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec); - struct i2c_client *client = to_i2c_client(codec->dev); int ret; + sigmadsp_reset(adau1701->sigmadsp); + if (clkdiv != ADAU1707_CLKDIV_UNSET && gpio_is_valid(adau1701->gpio_pll_mode[0]) && gpio_is_valid(adau1701->gpio_pll_mode[1])) { @@ -284,7 +288,7 @@ static int adau1701_reset(struct snd_soc_codec *codec, unsigned int clkdiv) * know the correct PLL setup */ if (clkdiv != ADAU1707_CLKDIV_UNSET) { - ret = process_sigma_firmware(client, ADAU1701_FIRMWARE); + ret = sigmadsp_setup(adau1701->sigmadsp, rate); if (ret) { dev_warn(codec->dev, "Failed to load firmware\n"); return ret; @@ -385,7 +389,7 @@ static int adau1701_hw_params(struct snd_pcm_substream *substream, * firmware upload. */ if (clkdiv != adau1701->pll_clkdiv) { - ret = adau1701_reset(codec, clkdiv); + ret = adau1701_reset(codec, clkdiv, params_rate(params)); if (ret < 0) return ret; } @@ -554,6 +558,14 @@ static int adau1701_set_sysclk(struct snd_soc_codec *codec, int clk_id, return 0; } +static int adau1701_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(dai->codec); + + return sigmadsp_restrict_params(adau1701->sigmadsp, substream); +} + #define ADAU1701_RATES (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | \ SNDRV_PCM_RATE_192000) @@ -564,6 +576,7 @@ static const struct snd_soc_dai_ops adau1701_dai_ops = { .set_fmt = adau1701_set_dai_fmt, .hw_params = adau1701_hw_params, .digital_mute = adau1701_digital_mute, + .startup = adau1701_startup, }; static struct snd_soc_dai_driver adau1701_dai = { @@ -600,6 +613,10 @@ static int adau1701_probe(struct snd_soc_codec *codec) unsigned int val; struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec); + ret = sigmadsp_attach(adau1701->sigmadsp, &codec->component); + if (ret) + return ret; + /* * Let the pll_clkdiv variable default to something that won't happen * at runtime. That way, we can postpone the firmware download from @@ -609,7 +626,7 @@ static int adau1701_probe(struct snd_soc_codec *codec) adau1701->pll_clkdiv = ADAU1707_CLKDIV_UNSET; /* initalize with pre-configured pll mode settings */ - ret = adau1701_reset(codec, adau1701->pll_clkdiv); + ret = adau1701_reset(codec, adau1701->pll_clkdiv, 0); if (ret < 0) return ret; @@ -722,6 +739,12 @@ static int adau1701_i2c_probe(struct i2c_client *client, adau1701->gpio_pll_mode[1] = gpio_pll_mode[1]; i2c_set_clientdata(client, adau1701); + + adau1701->sigmadsp = devm_sigmadsp_init_i2c(client, NULL, + ADAU1701_FIRMWARE); + if (IS_ERR(adau1701->sigmadsp)) + return PTR_ERR(adau1701->sigmadsp); + ret = snd_soc_register_codec(&client->dev, &adau1701_codec_drv, &adau1701_dai, 1); return ret; diff --git a/sound/soc/codecs/adau1761.c b/sound/soc/codecs/adau1761.c index 5518ebd6947c..0ae1501f3c11 100644 --- a/sound/soc/codecs/adau1761.c +++ b/sound/soc/codecs/adau1761.c @@ -698,11 +698,6 @@ static int adau1761_codec_probe(struct snd_soc_codec *codec) ARRAY_SIZE(adau1761_dapm_routes)); if (ret) return ret; - - ret = adau17x1_load_firmware(adau, codec->dev, - ADAU1761_FIRMWARE); - if (ret) - dev_warn(codec->dev, "Failed to firmware\n"); } ret = adau17x1_add_routes(codec); @@ -771,16 +766,20 @@ int adau1761_probe(struct device *dev, struct regmap *regmap, enum adau17x1_type type, void (*switch_mode)(struct device *dev)) { struct snd_soc_dai_driver *dai_drv; + const char *firmware_name; int ret; - ret = adau17x1_probe(dev, regmap, type, switch_mode); - if (ret) - return ret; - - if (type == ADAU1361) + if (type == ADAU1361) { dai_drv = &adau1361_dai_driver; - else + firmware_name = NULL; + } else { dai_drv = &adau1761_dai_driver; + firmware_name = ADAU1761_FIRMWARE; + } + + ret = adau17x1_probe(dev, regmap, type, switch_mode, firmware_name); + if (ret) + return ret; return snd_soc_register_codec(dev, &adau1761_codec_driver, dai_drv, 1); } diff --git a/sound/soc/codecs/adau1781.c b/sound/soc/codecs/adau1781.c index e9fc00fb13dd..4c8ddc3c69e1 100644 --- a/sound/soc/codecs/adau1781.c +++ b/sound/soc/codecs/adau1781.c @@ -385,7 +385,6 @@ static int adau1781_codec_probe(struct snd_soc_codec *codec) { struct adau1781_platform_data *pdata = dev_get_platdata(codec->dev); struct adau *adau = snd_soc_codec_get_drvdata(codec); - const char *firmware; int ret; ret = adau17x1_add_widgets(codec); @@ -422,25 +421,10 @@ static int adau1781_codec_probe(struct snd_soc_codec *codec) return ret; } - switch (adau->type) { - case ADAU1381: - firmware = ADAU1381_FIRMWARE; - break; - case ADAU1781: - firmware = ADAU1781_FIRMWARE; - break; - default: - return -EINVAL; - } - ret = adau17x1_add_routes(codec); if (ret < 0) return ret; - ret = adau17x1_load_firmware(adau, codec->dev, firmware); - if (ret) - dev_warn(codec->dev, "Failed to load firmware\n"); - return 0; } @@ -495,9 +479,21 @@ EXPORT_SYMBOL_GPL(adau1781_regmap_config); int adau1781_probe(struct device *dev, struct regmap *regmap, enum adau17x1_type type, void (*switch_mode)(struct device *dev)) { + const char *firmware_name; int ret; - ret = adau17x1_probe(dev, regmap, type, switch_mode); + switch (type) { + case ADAU1381: + firmware_name = ADAU1381_FIRMWARE; + break; + case ADAU1781: + firmware_name = ADAU1781_FIRMWARE; + break; + default: + return -EINVAL; + } + + ret = adau17x1_probe(dev, regmap, type, switch_mode, firmware_name); if (ret) return ret; diff --git a/sound/soc/codecs/adau17x1.c b/sound/soc/codecs/adau17x1.c index 3e16c1c64115..1cab34c57413 100644 --- a/sound/soc/codecs/adau17x1.c +++ b/sound/soc/codecs/adau17x1.c @@ -307,6 +307,7 @@ static int adau17x1_hw_params(struct snd_pcm_substream *substream, struct adau *adau = snd_soc_codec_get_drvdata(codec); unsigned int val, div, dsp_div; unsigned int freq; + int ret; if (adau->clk_src == ADAU17X1_CLK_SRC_PLL) freq = adau->pll_freq; @@ -356,6 +357,12 @@ static int adau17x1_hw_params(struct snd_pcm_substream *substream, regmap_write(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, dsp_div); } + if (adau->sigmadsp) { + ret = adau17x1_setup_firmware(adau, params_rate(params)); + if (ret < 0) + return ret; + } + if (adau->dai_fmt != SND_SOC_DAIFMT_RIGHT_J) return 0; @@ -661,12 +668,24 @@ static int adau17x1_set_dai_tdm_slot(struct snd_soc_dai *dai, return 0; } +static int adau17x1_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct adau *adau = snd_soc_codec_get_drvdata(dai->codec); + + if (adau->sigmadsp) + return sigmadsp_restrict_params(adau->sigmadsp, substream); + + return 0; +} + const struct snd_soc_dai_ops adau17x1_dai_ops = { .hw_params = adau17x1_hw_params, .set_sysclk = adau17x1_set_dai_sysclk, .set_fmt = adau17x1_set_dai_fmt, .set_pll = adau17x1_set_dai_pll, .set_tdm_slot = adau17x1_set_dai_tdm_slot, + .startup = adau17x1_startup, }; EXPORT_SYMBOL_GPL(adau17x1_dai_ops); @@ -745,8 +764,7 @@ bool adau17x1_volatile_register(struct device *dev, unsigned int reg) } EXPORT_SYMBOL_GPL(adau17x1_volatile_register); -int adau17x1_load_firmware(struct adau *adau, struct device *dev, - const char *firmware) +int adau17x1_setup_firmware(struct adau *adau, unsigned int rate) { int ret; int dspsr; @@ -758,7 +776,7 @@ int adau17x1_load_firmware(struct adau *adau, struct device *dev, regmap_write(adau->regmap, ADAU17X1_DSP_ENABLE, 1); regmap_write(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, 0xf); - ret = process_sigma_firmware_regmap(dev, adau->regmap, firmware); + ret = sigmadsp_setup(adau->sigmadsp, rate); if (ret) { regmap_write(adau->regmap, ADAU17X1_DSP_ENABLE, 0); return ret; @@ -767,7 +785,7 @@ int adau17x1_load_firmware(struct adau *adau, struct device *dev, return 0; } -EXPORT_SYMBOL_GPL(adau17x1_load_firmware); +EXPORT_SYMBOL_GPL(adau17x1_setup_firmware); int adau17x1_add_widgets(struct snd_soc_codec *codec) { @@ -787,8 +805,21 @@ int adau17x1_add_widgets(struct snd_soc_codec *codec) ret = snd_soc_dapm_new_controls(&codec->dapm, adau17x1_dsp_dapm_widgets, ARRAY_SIZE(adau17x1_dsp_dapm_widgets)); + if (ret) + return ret; + + if (!adau->sigmadsp) + return 0; + + ret = sigmadsp_attach(adau->sigmadsp, &codec->component); + if (ret) { + dev_err(codec->dev, "Failed to attach firmware: %d\n", + ret); + return ret; + } } - return ret; + + return 0; } EXPORT_SYMBOL_GPL(adau17x1_add_widgets); @@ -829,7 +860,8 @@ int adau17x1_resume(struct snd_soc_codec *codec) EXPORT_SYMBOL_GPL(adau17x1_resume); int adau17x1_probe(struct device *dev, struct regmap *regmap, - enum adau17x1_type type, void (*switch_mode)(struct device *dev)) + enum adau17x1_type type, void (*switch_mode)(struct device *dev), + const char *firmware_name) { struct adau *adau; @@ -846,6 +878,16 @@ int adau17x1_probe(struct device *dev, struct regmap *regmap, dev_set_drvdata(dev, adau); + if (firmware_name) { + adau->sigmadsp = devm_sigmadsp_init_regmap(dev, regmap, NULL, + firmware_name); + if (IS_ERR(adau->sigmadsp)) { + dev_warn(dev, "Could not find firmware file: %ld\n", + PTR_ERR(adau->sigmadsp)); + adau->sigmadsp = NULL; + } + } + if (switch_mode) switch_mode(dev); diff --git a/sound/soc/codecs/adau17x1.h b/sound/soc/codecs/adau17x1.h index e4a557fd7155..6861aa3aec02 100644 --- a/sound/soc/codecs/adau17x1.h +++ b/sound/soc/codecs/adau17x1.h @@ -4,6 +4,8 @@ #include <linux/regmap.h> #include <linux/platform_data/adau17x1.h> +#include "sigmadsp.h" + enum adau17x1_type { ADAU1361, ADAU1761, @@ -42,12 +44,14 @@ struct adau { bool dsp_bypass[2]; struct regmap *regmap; + struct sigmadsp *sigmadsp; }; int adau17x1_add_widgets(struct snd_soc_codec *codec); int adau17x1_add_routes(struct snd_soc_codec *codec); int adau17x1_probe(struct device *dev, struct regmap *regmap, - enum adau17x1_type type, void (*switch_mode)(struct device *dev)); + enum adau17x1_type type, void (*switch_mode)(struct device *dev), + const char *firmware_name); int adau17x1_set_micbias_voltage(struct snd_soc_codec *codec, enum adau17x1_micbias_voltage micbias); bool adau17x1_readable_register(struct device *dev, unsigned int reg); @@ -56,8 +60,7 @@ int adau17x1_resume(struct snd_soc_codec *codec); extern const struct snd_soc_dai_ops adau17x1_dai_ops; -int adau17x1_load_firmware(struct adau *adau, struct device *dev, - const char *firmware); +int adau17x1_setup_firmware(struct adau *adau, unsigned int rate); bool adau17x1_has_dsp(struct adau *adau); #define ADAU17X1_CLOCK_CONTROL 0x4000 diff --git a/sound/soc/codecs/sigmadsp-i2c.c b/sound/soc/codecs/sigmadsp-i2c.c index 246081aae8ca..bf6a2be72692 100644 --- a/sound/soc/codecs/sigmadsp-i2c.c +++ b/sound/soc/codecs/sigmadsp-i2c.c @@ -6,29 +6,59 @@ * Licensed under the GPL-2 or later. */ -#include <linux/i2c.h> #include <linux/export.h> +#include <linux/i2c.h> #include <linux/module.h> +#include <linux/slab.h> +#include <asm/unaligned.h> #include "sigmadsp.h" -static int sigma_action_write_i2c(void *control_data, - const struct sigma_action *sa, size_t len) +static int sigmadsp_write_i2c(void *control_data, + unsigned int addr, const uint8_t data[], size_t len) { - return i2c_master_send(control_data, (const unsigned char *)&sa->addr, - len); + uint8_t *buf; + int ret; + + buf = kzalloc(2 + len, GFP_KERNEL | GFP_DMA); + if (!buf) + return -ENOMEM; + + put_unaligned_be16(addr, buf); + memcpy(buf + 2, data, len); + + ret = i2c_master_send(control_data, buf, len + 2); + + kfree(buf); + + return ret; } -int process_sigma_firmware(struct i2c_client *client, const char *name) +/** + * devm_sigmadsp_init_i2c() - Initialize SigmaDSP instance + * @client: The parent I2C device + * @ops: The sigmadsp_ops to use for this instance + * @firmware_name: Name of the firmware file to load + * + * Allocates a SigmaDSP instance and loads the specified firmware file. + * + * Returns a pointer to a struct sigmadsp on success, or a PTR_ERR() on error. + */ +struct sigmadsp *devm_sigmadsp_init_i2c(struct i2c_client *client, + const struct sigmadsp_ops *ops, const char *firmware_name) { - struct sigma_firmware ssfw; + struct sigmadsp *sigmadsp; + + sigmadsp = devm_sigmadsp_init(&client->dev, ops, firmware_name); + if (IS_ERR(sigmadsp)) + return sigmadsp; - ssfw.control_data = client; - ssfw.write = sigma_action_write_i2c; + sigmadsp->control_data = client; + sigmadsp->write = sigmadsp_write_i2c; - return _process_sigma_firmware(&client->dev, &ssfw, name); + return sigmadsp; } -EXPORT_SYMBOL(process_sigma_firmware); +EXPORT_SYMBOL_GPL(devm_sigmadsp_init_i2c); MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); MODULE_DESCRIPTION("SigmaDSP I2C firmware loader"); diff --git a/sound/soc/codecs/sigmadsp-regmap.c b/sound/soc/codecs/sigmadsp-regmap.c index f78ed8d2cfb2..cdc5dda47b88 100644 --- a/sound/soc/codecs/sigmadsp-regmap.c +++ b/sound/soc/codecs/sigmadsp-regmap.c @@ -12,24 +12,40 @@ #include "sigmadsp.h" -static int sigma_action_write_regmap(void *control_data, - const struct sigma_action *sa, size_t len) +static int sigmadsp_write_regmap(void *control_data, + unsigned int addr, const uint8_t data[], size_t len) { - return regmap_raw_write(control_data, be16_to_cpu(sa->addr), - sa->payload, len - 2); + return regmap_raw_write(control_data, addr, + data, len); } -int process_sigma_firmware_regmap(struct device *dev, struct regmap *regmap, - const char *name) +/** + * devm_sigmadsp_init_i2c() - Initialize SigmaDSP instance + * @dev: The parent device + * @regmap: Regmap instance to use + * @ops: The sigmadsp_ops to use for this instance + * @firmware_name: Name of the firmware file to load + * + * Allocates a SigmaDSP instance and loads the specified firmware file. + * + * Returns a pointer to a struct sigmadsp on success, or a PTR_ERR() on error. + */ +struct sigmadsp *devm_sigmadsp_init_regmap(struct device *dev, + struct regmap *regmap, const struct sigmadsp_ops *ops, + const char *firmware_name) { - struct sigma_firmware ssfw; + struct sigmadsp *sigmadsp; + + sigmadsp = devm_sigmadsp_init(dev, ops, firmware_name); + if (IS_ERR(sigmadsp)) + return sigmadsp; - ssfw.control_data = regmap; - ssfw.write = sigma_action_write_regmap; + sigmadsp->control_data = regmap; + sigmadsp->write = sigmadsp_write_regmap; - return _process_sigma_firmware(dev, &ssfw, name); + return sigmadsp; } -EXPORT_SYMBOL(process_sigma_firmware_regmap); +EXPORT_SYMBOL_GPL(devm_sigmadsp_init_regmap); MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); MODULE_DESCRIPTION("SigmaDSP regmap firmware loader"); diff --git a/sound/soc/codecs/sigmadsp.c b/sound/soc/codecs/sigmadsp.c index 4fd31434276b..34e63b554c31 100644 --- a/sound/soc/codecs/sigmadsp.c +++ b/sound/soc/codecs/sigmadsp.c @@ -1,7 +1,7 @@ /* * Load Analog Devices SigmaStudio firmware files * - * Copyright 2009-2011 Analog Devices Inc. + * Copyright 2009-2014 Analog Devices Inc. * * Licensed under the GPL-2 or later. */ @@ -12,11 +12,21 @@ #include <linux/i2c.h> #include <linux/regmap.h> #include <linux/module.h> +#include <linux/slab.h> + +#include <sound/soc.h> #include "sigmadsp.h" #define SIGMA_MAGIC "ADISIGM" +struct sigmadsp_data { + struct list_head head; + unsigned int addr; + unsigned int length; + uint8_t data[]; +}; + struct sigma_firmware_header { unsigned char magic[7]; u8 version; @@ -30,6 +40,20 @@ enum { SIGMA_ACTION_END, }; +struct sigma_action { + u8 instr; + u8 len_hi; + __le16 len; + __be16 addr; + unsigned char payload[]; +} __packed; + +static int sigmadsp_write(struct sigmadsp *sigmadsp, unsigned int addr, + const uint8_t data[], size_t len) +{ + return sigmadsp->write(sigmadsp->control_data, addr, data, len); +} + static inline u32 sigma_action_len(struct sigma_action *sa) { return (sa->len_hi << 16) | le16_to_cpu(sa->len); @@ -58,11 +82,11 @@ static size_t sigma_action_size(struct sigma_action *sa) * Returns a negative error value in case of an error, 0 if processing of * the firmware should be stopped after this action, 1 otherwise. */ -static int -process_sigma_action(struct sigma_firmware *ssfw, struct sigma_action *sa) +static int process_sigma_action(struct sigmadsp *sigmadsp, + struct sigma_action *sa) { size_t len = sigma_action_len(sa); - int ret; + struct sigmadsp_data *data; pr_debug("%s: instr:%i addr:%#x len:%zu\n", __func__, sa->instr, sa->addr, len); @@ -71,9 +95,17 @@ process_sigma_action(struct sigma_firmware *ssfw, struct sigma_action *sa) case SIGMA_ACTION_WRITEXBYTES: case SIGMA_ACTION_WRITESINGLE: case SIGMA_ACTION_WRITESAFELOAD: - ret = ssfw->write(ssfw->control_data, sa, len); - if (ret < 0) + if (len < 3) return -EINVAL; + + data = kzalloc(sizeof(*data) + len - 2, GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->addr = be16_to_cpu(sa->addr); + data->length = len - 2; + memcpy(data->data, sa->payload, data->length); + list_add_tail(&data->head, &sigmadsp->data_list); break; case SIGMA_ACTION_END: return 0; @@ -84,22 +116,24 @@ process_sigma_action(struct sigma_firmware *ssfw, struct sigma_action *sa) return 1; } -static int -process_sigma_actions(struct sigma_firmware *ssfw) +static int sigmadsp_fw_load_v1(struct sigmadsp *sigmadsp, + const struct firmware *fw) { struct sigma_action *sa; - size_t size; + size_t size, pos; int ret; - while (ssfw->pos + sizeof(*sa) <= ssfw->fw->size) { - sa = (struct sigma_action *)(ssfw->fw->data + ssfw->pos); + pos = sizeof(struct sigma_firmware_header); + + while (pos + sizeof(*sa) <= fw->size) { + sa = (struct sigma_action *)(fw->data + pos); size = sigma_action_size(sa); - ssfw->pos += size; - if (ssfw->pos > ssfw->fw->size || size == 0) + pos += size; + if (pos > fw->size || size == 0) break; - ret = process_sigma_action(ssfw, sa); + ret = process_sigma_action(sigmadsp, sa); pr_debug("%s: action returned %i\n", __func__, ret); @@ -107,29 +141,40 @@ process_sigma_actions(struct sigma_firmware *ssfw) return ret; } - if (ssfw->pos != ssfw->fw->size) + if (pos != fw->size) return -EINVAL; return 0; } -int _process_sigma_firmware(struct device *dev, - struct sigma_firmware *ssfw, const char *name) +static void sigmadsp_firmware_release(struct sigmadsp *sigmadsp) { - int ret; - struct sigma_firmware_header *ssfw_head; + struct sigmadsp_data *data, *_data; + + list_for_each_entry_safe(data, _data, &sigmadsp->data_list, head) + kfree(data); + + INIT_LIST_HEAD(&sigmadsp->data_list); +} + +static void devm_sigmadsp_release(struct device *dev, void *res) +{ + sigmadsp_firmware_release((struct sigmadsp *)res); +} + +static int sigmadsp_firmware_load(struct sigmadsp *sigmadsp, const char *name) +{ + const struct sigma_firmware_header *ssfw_head; const struct firmware *fw; + int ret; u32 crc; - pr_debug("%s: loading firmware %s\n", __func__, name); - /* first load the blob */ - ret = request_firmware(&fw, name, dev); + ret = request_firmware(&fw, name, sigmadsp->dev); if (ret) { pr_debug("%s: request_firmware() failed with %i\n", __func__, ret); - return ret; + goto done; } - ssfw->fw = fw; /* then verify the header */ ret = -EINVAL; @@ -141,20 +186,13 @@ int _process_sigma_firmware(struct device *dev, * overflows later in the loading process. */ if (fw->size < sizeof(*ssfw_head) || fw->size >= 0x4000000) { - dev_err(dev, "Failed to load firmware: Invalid size\n"); + dev_err(sigmadsp->dev, "Failed to load firmware: Invalid size\n"); goto done; } ssfw_head = (void *)fw->data; if (memcmp(ssfw_head->magic, SIGMA_MAGIC, ARRAY_SIZE(ssfw_head->magic))) { - dev_err(dev, "Failed to load firmware: Invalid magic\n"); - goto done; - } - - if (ssfw_head->version != 1) { - dev_err(dev, - "Failed to load firmware: Invalid version %d. Supported firmware versions: 1\n", - ssfw_head->version); + dev_err(sigmadsp->dev, "Failed to load firmware: Invalid magic\n"); goto done; } @@ -162,23 +200,160 @@ int _process_sigma_firmware(struct device *dev, fw->size - sizeof(*ssfw_head)); pr_debug("%s: crc=%x\n", __func__, crc); if (crc != le32_to_cpu(ssfw_head->crc)) { - dev_err(dev, "Failed to load firmware: Wrong crc checksum: expected %x got %x\n", + dev_err(sigmadsp->dev, "Failed to load firmware: Wrong crc checksum: expected %x got %x\n", le32_to_cpu(ssfw_head->crc), crc); goto done; } - ssfw->pos = sizeof(*ssfw_head); + switch (ssfw_head->version) { + case 1: + ret = sigmadsp_fw_load_v1(sigmadsp, fw); + break; + default: + dev_err(sigmadsp->dev, + "Failed to load firmware: Invalid version %d. Supported firmware versions: 1\n", + ssfw_head->version); + ret = -EINVAL; + break; + } - /* finally process all of the actions */ - ret = process_sigma_actions(ssfw); + if (ret) + sigmadsp_firmware_release(sigmadsp); - done: +done: release_firmware(fw); - pr_debug("%s: loaded %s\n", __func__, name); + return ret; +} + +static int sigmadsp_init(struct sigmadsp *sigmadsp, struct device *dev, + const struct sigmadsp_ops *ops, const char *firmware_name) +{ + sigmadsp->ops = ops; + sigmadsp->dev = dev; + + INIT_LIST_HEAD(&sigmadsp->data_list); + + return sigmadsp_firmware_load(sigmadsp, firmware_name); +} + +/** + * devm_sigmadsp_init() - Initialize SigmaDSP instance + * @dev: The parent device + * @ops: The sigmadsp_ops to use for this instance + * @firmware_name: Name of the firmware file to load + * + * Allocates a SigmaDSP instance and loads the specified firmware file. + * + * Returns a pointer to a struct sigmadsp on success, or a PTR_ERR() on error. + */ +struct sigmadsp *devm_sigmadsp_init(struct device *dev, + const struct sigmadsp_ops *ops, const char *firmware_name) +{ + struct sigmadsp *sigmadsp; + int ret; + + sigmadsp = devres_alloc(devm_sigmadsp_release, sizeof(*sigmadsp), + GFP_KERNEL); + if (!sigmadsp) + return ERR_PTR(-ENOMEM); + + ret = sigmadsp_init(sigmadsp, dev, ops, firmware_name); + if (ret) { + devres_free(sigmadsp); + return ERR_PTR(ret); + } + + devres_add(dev, sigmadsp); + + return sigmadsp; +} +EXPORT_SYMBOL_GPL(devm_sigmadsp_init); + +/** + * sigmadsp_attach() - Attach a sigmadsp instance to a ASoC component + * @sigmadsp: The sigmadsp instance to attach + * @component: The component to attach to + * + * Typically called in the components probe callback. + * + * Note, once this function has been called the firmware must not be released + * until after the ALSA snd_card that the component belongs to has been + * disconnected, even if sigmadsp_attach() returns an error. + */ +int sigmadsp_attach(struct sigmadsp *sigmadsp, + struct snd_soc_component *component) +{ + sigmadsp->component = component; + + return 0; +} +EXPORT_SYMBOL_GPL(sigmadsp_attach); + +/** + * sigmadsp_setup() - Setup the DSP for the specified samplerate + * @sigmadsp: The sigmadsp instance to configure + * @samplerate: The samplerate the DSP should be configured for + * + * Loads the appropriate firmware program and parameter memory (if not already + * loaded) and enables the controls for the specified samplerate. Any control + * parameter changes that have been made previously will be restored. + * + * Returns 0 on success, a negative error code otherwise. + */ +int sigmadsp_setup(struct sigmadsp *sigmadsp, unsigned int samplerate) +{ + struct sigmadsp_data *data; + int ret; + + if (sigmadsp->current_samplerate == samplerate) + return 0; + + list_for_each_entry(data, &sigmadsp->data_list, head) { + ret = sigmadsp_write(sigmadsp, data->addr, data->data, + data->length); + if (ret) + goto err; + } + + sigmadsp->current_samplerate = samplerate; + + return 0; +err: + sigmadsp_reset(sigmadsp); return ret; } -EXPORT_SYMBOL_GPL(_process_sigma_firmware); +EXPORT_SYMBOL_GPL(sigmadsp_setup); + +/** + * sigmadsp_reset() - Notify the sigmadsp instance that the DSP has been reset + * @sigmadsp: The sigmadsp instance to reset + * + * Should be called whenever the DSP has been reset and parameter and program + * memory need to be re-loaded. + */ +void sigmadsp_reset(struct sigmadsp *sigmadsp) +{ + sigmadsp->current_samplerate = 0; +} +EXPORT_SYMBOL_GPL(sigmadsp_reset); + +/** + * sigmadsp_restrict_params() - Applies DSP firmware specific constraints + * @sigmadsp: The sigmadsp instance + * @substream: The substream to restrict + * + * Applies samplerate constraints that may be required by the firmware Should + * typically be called from the CODEC/component drivers startup callback. + * + * Returns 0 on success, a negative error code otherwise. + */ +int sigmadsp_restrict_params(struct sigmadsp *sigmadsp, + struct snd_pcm_substream *substream) +{ + return 0; +} +EXPORT_SYMBOL_GPL(sigmadsp_restrict_params); MODULE_LICENSE("GPL"); diff --git a/sound/soc/codecs/sigmadsp.h b/sound/soc/codecs/sigmadsp.h index c47cd23e9827..a6be91a4c2dc 100644 --- a/sound/soc/codecs/sigmadsp.h +++ b/sound/soc/codecs/sigmadsp.h @@ -11,31 +11,50 @@ #include <linux/device.h> #include <linux/regmap.h> +#include <linux/list.h> -struct sigma_action { - u8 instr; - u8 len_hi; - __le16 len; - __be16 addr; - unsigned char payload[]; -} __packed; +#include <sound/pcm.h> -struct sigma_firmware { - const struct firmware *fw; - size_t pos; +struct sigmadsp; +struct snd_soc_component; +struct snd_pcm_substream; + +struct sigmadsp_ops { + int (*safeload)(struct sigmadsp *sigmadsp, unsigned int addr, + const uint8_t *data, size_t len); +}; + +struct sigmadsp { + const struct sigmadsp_ops *ops; + + struct list_head data_list; + + unsigned int current_samplerate; + struct snd_soc_component *component; + struct device *dev; void *control_data; - int (*write)(void *control_data, const struct sigma_action *sa, - size_t len); + int (*write)(void *, unsigned int, const uint8_t *, size_t); }; -int _process_sigma_firmware(struct device *dev, - struct sigma_firmware *ssfw, const char *name); +struct sigmadsp *devm_sigmadsp_init(struct device *dev, + const struct sigmadsp_ops *ops, const char *firmware_name); +void sigmadsp_reset(struct sigmadsp *sigmadsp); + +int sigmadsp_restrict_params(struct sigmadsp *sigmadsp, + struct snd_pcm_substream *substream); struct i2c_client; -extern int process_sigma_firmware(struct i2c_client *client, const char *name); -extern int process_sigma_firmware_regmap(struct device *dev, - struct regmap *regmap, const char *name); +struct sigmadsp *devm_sigmadsp_init_regmap(struct device *dev, + struct regmap *regmap, const struct sigmadsp_ops *ops, + const char *firmware_name); +struct sigmadsp *devm_sigmadsp_init_i2c(struct i2c_client *client, + const struct sigmadsp_ops *ops, const char *firmware_name); + +int sigmadsp_attach(struct sigmadsp *sigmadsp, + struct snd_soc_component *component); +int sigmadsp_setup(struct sigmadsp *sigmadsp, unsigned int rate); +void sigmadsp_reset(struct sigmadsp *sigmadsp); #endif |