From: Cliff Cai cliff.cai@analog.com
Signed-off-by: Cliff Cai cliff.cai@analog.com Signed-off-by: Bryan Wu cooloney@kernel.org --- sound/soc/blackfin/Kconfig | 8 ++ sound/soc/blackfin/bf5xx-ac97-pcm.c | 45 +++++++---- sound/soc/blackfin/bf5xx-ac97.c | 152 +++++++++++++++++++++-------------- sound/soc/blackfin/bf5xx-ac97.h | 35 +++++++- sound/soc/codecs/ad1980.c | 5 +- 5 files changed, 163 insertions(+), 82 deletions(-)
diff --git a/sound/soc/blackfin/Kconfig b/sound/soc/blackfin/Kconfig index 3fce187..e58d5b1 100644 --- a/sound/soc/blackfin/Kconfig +++ b/sound/soc/blackfin/Kconfig @@ -55,6 +55,14 @@ config SND_MMAP_SUPPORT Say y if you want AC97 driver to support mmap mode. We introduce an intermediate buffer to simulate mmap.
+config SND_MULTICHAN_SUPPORT + bool "Enable Multichannel Support" + depends on SND_BF5XX_AC97 + default n + help + Say y if you want AC97 driver to support up to 5.1 channel audio. + this mode will consume much more memory for DMA. + config SND_BF5XX_SOC_SPORT tristate diff --git a/sound/soc/blackfin/bf5xx-ac97-pcm.c b/sound/soc/blackfin/bf5xx-ac97-pcm.c index 25e50d2..eb1531f 100644 --- a/sound/soc/blackfin/bf5xx-ac97-pcm.c +++ b/sound/soc/blackfin/bf5xx-ac97-pcm.c @@ -43,24 +43,34 @@ #include "bf5xx-ac97.h" #include "bf5xx-sport.h"
+static unsigned int ac97_chan_mask[] = { + SP_FL, /* Mono */ + SP_STEREO, /* Stereo */ + SP_2DOT1, /* 2.1*/ + SP_QUAD,/*Quadraquic*/ + SP_FL | SP_FR | SP_FC | SP_SL | SP_SR,/*5 channels */ + SP_5DOT1, /* 5.1 */ +}; + #if defined(CONFIG_SND_MMAP_SUPPORT) static void bf5xx_mmap_copy(struct snd_pcm_substream *substream, snd_pcm_uframes_t count) { struct snd_pcm_runtime *runtime = substream->runtime; struct sport_device *sport = runtime->private_data; + unsigned int chan_mask = ac97_chan_mask[substream->runtime->channels - 1]; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - bf5xx_pcm_to_ac97( - (struct ac97_frame *)sport->tx_dma_buf + sport->tx_pos, - (__u32 *)runtime->dma_area + sport->tx_pos, count); + bf5xx_pcm_to_ac97((struct ac97_frame *)sport->tx_dma_buf + sport->tx_pos, + (__u16 *)runtime->dma_area + sport->tx_pos * substream->runtime->channels, + count, chan_mask); sport->tx_pos += runtime->period_size; if (sport->tx_pos >= runtime->buffer_size) sport->tx_pos %= runtime->buffer_size; sport->tx_delay_pos = sport->tx_pos; } else { - bf5xx_ac97_to_pcm( - (struct ac97_frame *)sport->rx_dma_buf + sport->rx_pos, - (__u32 *)runtime->dma_area + sport->rx_pos, count); + bf5xx_ac97_to_pcm((struct ac97_frame *)sport->rx_dma_buf + sport->rx_pos, + (__u16 *)runtime->dma_area + sport->rx_pos * substream->runtime->channels, + count); sport->rx_pos += runtime->period_size; if (sport->rx_pos >= runtime->buffer_size) sport->rx_pos %= runtime->buffer_size; @@ -123,10 +133,18 @@ static int bf5xx_pcm_hw_params(struct snd_pcm_substream *substream,
static int bf5xx_pcm_hw_free(struct snd_pcm_substream *substream) { + #if defined(CONFIG_SND_MMAP_SUPPORT) struct snd_pcm_runtime *runtime = substream->runtime; + struct sport_device *sport = runtime->private_data;
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - memset(runtime->dma_area, 0, runtime->buffer_size); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + sport->once = 0; + if (runtime->dma_area) + memset(runtime->dma_area, 0, runtime->buffer_size); + memset(sport->tx_dma_buf, 0, runtime->buffer_size * sizeof(struct ac97_frame)); + } else + memset(sport->rx_dma_buf, 0, runtime->buffer_size * sizeof(struct ac97_frame)); +#endif snd_pcm_lib_free_pages(substream); return 0; } @@ -174,7 +192,6 @@ static int bf5xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) case SNDRV_PCM_TRIGGER_START: if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { bf5xx_mmap_copy(substream, runtime->period_size); - snd_pcm_period_elapsed(substream); sport->tx_delay_pos = 0; sport_tx_start(sport); } @@ -286,13 +303,11 @@ static int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel, substream->stream ? "Capture" : "Playback", pos, count);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - bf5xx_pcm_to_ac97( - (struct ac97_frame *)runtime->dma_area + pos, - buf, count); + bf5xx_pcm_to_ac97((struct ac97_frame *)runtime->dma_area + pos, + (__u16 *)buf, count, chan_mask); else - bf5xx_ac97_to_pcm( - (struct ac97_frame *)runtime->dma_area + pos, - buf, count); + bf5xx_ac97_to_pcm((struct ac97_frame *)runtime->dma_area + pos, + (__u16 *)buf, count); return 0; } #endif diff --git a/sound/soc/blackfin/bf5xx-ac97.c b/sound/soc/blackfin/bf5xx-ac97.c index 5e5aafb..b88f796 100644 --- a/sound/soc/blackfin/bf5xx-ac97.c +++ b/sound/soc/blackfin/bf5xx-ac97.c @@ -54,65 +54,97 @@ static int *cmd_count; static int sport_num = CONFIG_SND_BF5XX_SPORT_NUM;
-#if defined(CONFIG_BF54x) +static u16 sport_req[][7] = { + PIN_REQ_SPORT_0, +#ifdef PIN_REQ_SPORT_1 + PIN_REQ_SPORT_1, +#endif +#ifdef PIN_REQ_SPORT_2 + PIN_REQ_SPORT_2, +#endif +#ifdef PIN_REQ_SPORT_3 + PIN_REQ_SPORT_3, +#endif + }; + static struct sport_param sport_params[4] = { { .dma_rx_chan = CH_SPORT0_RX, .dma_tx_chan = CH_SPORT0_TX, - .err_irq = IRQ_SPORT0_ERR, + .err_irq = IRQ_SPORT0_ERROR, .regs = (struct sport_register *)SPORT0_TCR1, }, +#ifdef PIN_REQ_SPORT_1 { .dma_rx_chan = CH_SPORT1_RX, .dma_tx_chan = CH_SPORT1_TX, - .err_irq = IRQ_SPORT1_ERR, + .err_irq = IRQ_SPORT1_ERROR, .regs = (struct sport_register *)SPORT1_TCR1, }, +#endif +#ifdef PIN_REQ_SPORT_2 { .dma_rx_chan = CH_SPORT2_RX, .dma_tx_chan = CH_SPORT2_TX, - .err_irq = IRQ_SPORT2_ERR, + .err_irq = IRQ_SPORT2_ERROR, .regs = (struct sport_register *)SPORT2_TCR1, }, +#endif +#ifdef PIN_REQ_SPORT_3 { .dma_rx_chan = CH_SPORT3_RX, .dma_tx_chan = CH_SPORT3_TX, - .err_irq = IRQ_SPORT3_ERR, + .err_irq = IRQ_SPORT3_ERROR, .regs = (struct sport_register *)SPORT3_TCR1, } -}; -#else -static struct sport_param sport_params[2] = { - { - .dma_rx_chan = CH_SPORT0_RX, - .dma_tx_chan = CH_SPORT0_TX, - .err_irq = IRQ_SPORT0_ERROR, - .regs = (struct sport_register *)SPORT0_TCR1, - }, - { - .dma_rx_chan = CH_SPORT1_RX, - .dma_tx_chan = CH_SPORT1_TX, - .err_irq = IRQ_SPORT1_ERROR, - .regs = (struct sport_register *)SPORT1_TCR1, - } -}; #endif +};
-void bf5xx_pcm_to_ac97(struct ac97_frame *dst, const __u32 *src, \ - size_t count) +void bf5xx_pcm_to_ac97(struct ac97_frame *dst, const __u16 *src, \ + size_t count, unsigned int chan_mask) { while (count--) { - dst->ac97_tag = TAG_VALID | TAG_PCM; - (dst++)->ac97_pcm = *src++; + dst->ac97_tag = TAG_VALID; + if (chan_mask & SP_FL) { + dst->ac97_pcm_r = *src++; + dst->ac97_tag |= TAG_PCM_RIGHT; + } + if (chan_mask & SP_FR) { + dst->ac97_pcm_l = *src++; + dst->ac97_tag |= TAG_PCM_LEFT; + + } +#if defined(CONFIG_SND_MULTICHAN_SUPPORT) + if (chan_mask & SP_SR) { + dst->ac97_sl = *src++; + dst->ac97_tag |= TAG_PCM_SL; + } + if (chan_mask & SP_SL) { + dst->ac97_sr = *src++; + dst->ac97_tag |= TAG_PCM_SR; + } + if (chan_mask & SP_LFE) { + dst->ac97_lfe = *src++; + dst->ac97_tag |= TAG_PCM_LFE; + } + if (chan_mask & SP_FC) { + dst->ac97_center = *src++; + dst->ac97_tag |= TAG_PCM_CENTER; + } +#endif + dst++; } } EXPORT_SYMBOL(bf5xx_pcm_to_ac97);
-void bf5xx_ac97_to_pcm(const struct ac97_frame *src, __u32 *dst, \ +void bf5xx_ac97_to_pcm(const struct ac97_frame *src, __u16 *dst, \ size_t count) { - while (count--) - *(dst++) = (src++)->ac97_pcm; + while (count--) { + *(dst++) = src->ac97_pcm_l; + *(dst++) = src->ac97_pcm_r; + src++; + } } EXPORT_SYMBOL(bf5xx_ac97_to_pcm);
@@ -297,20 +329,15 @@ static int bf5xx_ac97_resume(struct platform_device *pdev, static int bf5xx_ac97_probe(struct platform_device *pdev, struct snd_soc_dai *dai) { - int ret; -#if defined(CONFIG_BF54x) - u16 sport_req[][7] = {PIN_REQ_SPORT_0, PIN_REQ_SPORT_1, - PIN_REQ_SPORT_2, PIN_REQ_SPORT_3}; -#else - u16 sport_req[][7] = {PIN_REQ_SPORT_0, PIN_REQ_SPORT_1}; -#endif + int ret = 0; cmd_count = (int *)get_zeroed_page(GFP_KERNEL); if (cmd_count == NULL) return -ENOMEM;
if (peripheral_request_list(&sport_req[sport_num][0], "soc-audio")) { pr_err("Requesting Peripherals failed\n"); - return -EFAULT; + ret = -EFAULT; + goto peripheral_err; }
#ifdef CONFIG_SND_BF5XX_HAVE_COLD_RESET @@ -318,54 +345,52 @@ static int bf5xx_ac97_probe(struct platform_device *pdev, if (gpio_request(CONFIG_SND_BF5XX_RESET_GPIO_NUM, "SND_AD198x RESET")) { pr_err("Failed to request GPIO_%d for reset\n", CONFIG_SND_BF5XX_RESET_GPIO_NUM); - peripheral_free_list(&sport_req[sport_num][0]); - return -1; + ret = -1; + goto gpio_err; } gpio_direction_output(CONFIG_SND_BF5XX_RESET_GPIO_NUM, 1); #endif sport_handle = sport_init(&sport_params[sport_num], 2, \ sizeof(struct ac97_frame), NULL); if (!sport_handle) { - peripheral_free_list(&sport_req[sport_num][0]); -#ifdef CONFIG_SND_BF5XX_HAVE_COLD_RESET - gpio_free(CONFIG_SND_BF5XX_RESET_GPIO_NUM); -#endif - return -ENODEV; + ret = -ENODEV; + goto sport_err; } /*SPORT works in TDM mode to simulate AC97 transfers*/ ret = sport_set_multichannel(sport_handle, 16, 0x1F, 1); if (ret) { pr_err("SPORT is busy!\n"); - kfree(sport_handle); - peripheral_free_list(&sport_req[sport_num][0]); -#ifdef CONFIG_SND_BF5XX_HAVE_COLD_RESET - gpio_free(CONFIG_SND_BF5XX_RESET_GPIO_NUM); -#endif - return -EBUSY; + ret = -EBUSY; + goto sport_config_err; }
ret = sport_config_rx(sport_handle, IRFS, 0xF, 0, (16*16-1)); if (ret) { pr_err("SPORT is busy!\n"); - kfree(sport_handle); - peripheral_free_list(&sport_req[sport_num][0]); -#ifdef CONFIG_SND_BF5XX_HAVE_COLD_RESET - gpio_free(CONFIG_SND_BF5XX_RESET_GPIO_NUM); -#endif - return -EBUSY; + ret = -EBUSY; + goto sport_config_err; }
ret = sport_config_tx(sport_handle, ITFS, 0xF, 0, (16*16-1)); if (ret) { pr_err("SPORT is busy!\n"); - kfree(sport_handle); - peripheral_free_list(&sport_req[sport_num][0]); + ret = -EBUSY; + goto sport_config_err; + } + +sport_config_err: + kfree(sport_handle); +sport_err: #ifdef CONFIG_SND_BF5XX_HAVE_COLD_RESET - gpio_free(CONFIG_SND_BF5XX_RESET_GPIO_NUM); + gpio_free(CONFIG_SND_BF5XX_RESET_GPIO_NUM); #endif - return -EBUSY; - } - return 0; +gpio_err: + peripheral_free_list(&sport_req[sport_num][0]); +peripheral_err: + free_page((unsigned long)cmd_count); + cmd_count = NULL; + + return ret; }
static void bf5xx_ac97_remove(struct platform_device *pdev, @@ -373,6 +398,7 @@ static void bf5xx_ac97_remove(struct platform_device *pdev, { free_page((unsigned long)cmd_count); cmd_count = NULL; + peripheral_free_list(&sport_req[sport_num][0]); #ifdef CONFIG_SND_BF5XX_HAVE_COLD_RESET gpio_free(CONFIG_SND_BF5XX_RESET_GPIO_NUM); #endif @@ -389,7 +415,11 @@ struct snd_soc_dai bfin_ac97_dai = { .playback = { .stream_name = "AC97 Playback", .channels_min = 2, +#if defined(CONFIG_SND_MULTICHAN_SUPPORT) + .channels_max = 6, +#else .channels_max = 2, +#endif .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .capture = { diff --git a/sound/soc/blackfin/bf5xx-ac97.h b/sound/soc/blackfin/bf5xx-ac97.h index 3f77cc5..04284d2 100644 --- a/sound/soc/blackfin/bf5xx-ac97.h +++ b/sound/soc/blackfin/bf5xx-ac97.h @@ -16,21 +16,46 @@ struct ac97_frame { u16 ac97_tag; /* slot 0 */ u16 ac97_addr; /* slot 1 */ u16 ac97_data; /* slot 2 */ - u32 ac97_pcm; /* slot 3 and 4: left and right pcm data */ + u16 ac97_pcm_l; /*slot 3:front left*/ + u16 ac97_pcm_r; /*slot 4:front left*/ +#if defined(CONFIG_SND_MULTICHAN_SUPPORT) + u16 ac97_mdm_l1; + u16 ac97_center; /*slot 6:center*/ + u16 ac97_sl; /*slot 7:surround left*/ + u16 ac97_sr; /*slot 8:surround right*/ + u16 ac97_lfe; /*slot 9:lfe*/ +#endif } __attribute__ ((packed));
+/* Speaker location */ +#define SP_FL 0x0001 +#define SP_FR 0x0010 +#define SP_FC 0x0002 +#define SP_LFE 0x0020 +#define SP_SL 0x0004 +#define SP_SR 0x0040 + +#define SP_STEREO (SP_FL | SP_FR) +#define SP_2DOT1 (SP_FL | SP_FR | SP_LFE) +#define SP_QUAD (SP_FL | SP_FR | SP_SL | SP_SR) +#define SP_5DOT1 (SP_FL | SP_FR | SP_FC | SP_LFE | SP_SL | SP_SR) + #define TAG_VALID 0x8000 #define TAG_CMD 0x6000 #define TAG_PCM_LEFT 0x1000 #define TAG_PCM_RIGHT 0x0800 -#define TAG_PCM (TAG_PCM_LEFT | TAG_PCM_RIGHT) +#define TAG_PCM_MDM_L1 0x0400 +#define TAG_PCM_CENTER 0x0200 +#define TAG_PCM_SL 0x0100 +#define TAG_PCM_SR 0x0080 +#define TAG_PCM_LFE 0x0040
extern struct snd_soc_dai bfin_ac97_dai;
-void bf5xx_pcm_to_ac97(struct ac97_frame *dst, const __u32 *src, \ - size_t count); +void bf5xx_pcm_to_ac97(struct ac97_frame *dst, const __u16 *src, \ + size_t count, unsigned int chan_mask);
-void bf5xx_ac97_to_pcm(const struct ac97_frame *src, __u32 *dst, \ +void bf5xx_ac97_to_pcm(const struct ac97_frame *src, __u16 *dst, \ size_t count);
#endif diff --git a/sound/soc/codecs/ad1980.c b/sound/soc/codecs/ad1980.c index 1397b8e..e22fbdf 100644 --- a/sound/soc/codecs/ad1980.c +++ b/sound/soc/codecs/ad1980.c @@ -145,7 +145,7 @@ struct snd_soc_dai ad1980_dai = { .playback = { .stream_name = "Playback", .channels_min = 2, - .channels_max = 2, + .channels_max = 6, .rates = SNDRV_PCM_RATE_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .capture = { @@ -256,6 +256,9 @@ static int ad1980_soc_probe(struct platform_device *pdev) ac97_write(codec, AC97_MASTER, 0x0000); /* unmute line out volume */ ac97_write(codec, AC97_PCM, 0x0000); /* unmute PCM out volume */ ac97_write(codec, AC97_REC_GAIN, 0x0000);/* unmute record volume */ + ac97_write(codec, AC97_CENTER_LFE_MASTER, 0x0000); /* unmute center and lfe volume */ + ac97_write(codec, AC97_SURROUND_MASTER, 0x0000); /* unmute surround volume */ + ac97_write(codec, AC97_EXTENDED_STATUS, 0x0000);/*power on LFE CENTER and Surround DACs*/
ad1980_add_controls(codec); ret = snd_soc_register_card(socdev);