diff options
Diffstat (limited to 'sound/soc/ep93xx')
-rw-r--r-- | sound/soc/ep93xx/edb93xx.c | 61 | ||||
-rw-r--r-- | sound/soc/ep93xx/ep93xx-ac97.c | 6 | ||||
-rw-r--r-- | sound/soc/ep93xx/ep93xx-i2s.c | 13 | ||||
-rw-r--r-- | sound/soc/ep93xx/ep93xx-pcm.c | 148 | ||||
-rw-r--r-- | sound/soc/ep93xx/simone.c | 64 | ||||
-rw-r--r-- | sound/soc/ep93xx/snappercl15.c | 58 |
6 files changed, 203 insertions, 147 deletions
diff --git a/sound/soc/ep93xx/edb93xx.c b/sound/soc/ep93xx/edb93xx.c index d3aa151..51930b6 100644 --- a/sound/soc/ep93xx/edb93xx.c +++ b/sound/soc/ep93xx/edb93xx.c @@ -21,6 +21,7 @@ #include <linux/platform_device.h> #include <linux/gpio.h> +#include <linux/module.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/soc.h> @@ -28,12 +29,6 @@ #include <mach/hardware.h> #include "ep93xx-pcm.h" -#define edb93xx_has_audio() (machine_is_edb9301() || \ - machine_is_edb9302() || \ - machine_is_edb9302a() || \ - machine_is_edb9307a() || \ - machine_is_edb9315a()) - static int edb93xx_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { @@ -94,49 +89,61 @@ static struct snd_soc_card snd_soc_edb93xx = { .num_links = 1, }; -static struct platform_device *edb93xx_snd_device; - -static int __init edb93xx_init(void) +static int __devinit edb93xx_probe(struct platform_device *pdev) { + struct snd_soc_card *card = &snd_soc_edb93xx; int ret; - if (!edb93xx_has_audio()) - return -ENODEV; - ret = ep93xx_i2s_acquire(EP93XX_SYSCON_DEVCFG_I2SONAC97, EP93XX_SYSCON_I2SCLKDIV_ORIDE | EP93XX_SYSCON_I2SCLKDIV_SPOL); if (ret) return ret; - edb93xx_snd_device = platform_device_alloc("soc-audio", -1); - if (!edb93xx_snd_device) { - ret = -ENOMEM; - goto free_i2s; + card->dev = &pdev->dev; + + ret = snd_soc_register_card(card); + if (ret) { + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", + ret); + ep93xx_i2s_release(); } - platform_set_drvdata(edb93xx_snd_device, &snd_soc_edb93xx); - ret = platform_device_add(edb93xx_snd_device); - if (ret) - goto device_put; + return ret; +} - return 0; +static int __devexit edb93xx_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); -device_put: - platform_device_put(edb93xx_snd_device); -free_i2s: + snd_soc_unregister_card(card); ep93xx_i2s_release(); - return ret; + + return 0; +} + +static struct platform_driver edb93xx_driver = { + .driver = { + .name = "edb93xx-audio", + .owner = THIS_MODULE, + }, + .probe = edb93xx_probe, + .remove = __devexit_p(edb93xx_remove), +}; + +static int __init edb93xx_init(void) +{ + return platform_driver_register(&edb93xx_driver); } module_init(edb93xx_init); static void __exit edb93xx_exit(void) { - platform_device_unregister(edb93xx_snd_device); - ep93xx_i2s_release(); + platform_driver_unregister(&edb93xx_driver); } module_exit(edb93xx_exit); MODULE_AUTHOR("Alexander Sverdlin <subaparts@yandex.ru>"); MODULE_DESCRIPTION("ALSA SoC EDB93xx"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:edb93xx-audio"); diff --git a/sound/soc/ep93xx/ep93xx-ac97.c b/sound/soc/ep93xx/ep93xx-ac97.c index 104e95c..3cd6158 100644 --- a/sound/soc/ep93xx/ep93xx-ac97.c +++ b/sound/soc/ep93xx/ep93xx-ac97.c @@ -106,12 +106,12 @@ static struct ep93xx_ac97_info *ep93xx_ac97_info; static struct ep93xx_pcm_dma_params ep93xx_ac97_pcm_out = { .name = "ac97-pcm-out", - .dma_port = EP93XX_DMA_M2P_PORT_AAC1, + .dma_port = EP93XX_DMA_AAC1, }; static struct ep93xx_pcm_dma_params ep93xx_ac97_pcm_in = { .name = "ac97-pcm-in", - .dma_port = EP93XX_DMA_M2P_PORT_AAC1, + .dma_port = EP93XX_DMA_AAC1, }; static inline unsigned ep93xx_ac97_read_reg(struct ep93xx_ac97_info *info, @@ -335,7 +335,7 @@ static struct snd_soc_dai_ops ep93xx_ac97_dai_ops = { .trigger = ep93xx_ac97_trigger, }; -struct snd_soc_dai_driver ep93xx_ac97_dai = { +static struct snd_soc_dai_driver ep93xx_ac97_dai = { .name = "ep93xx-ac97", .id = 0, .ac97_control = 1, diff --git a/sound/soc/ep93xx/ep93xx-i2s.c b/sound/soc/ep93xx/ep93xx-i2s.c index 042f4e9..099614e 100644 --- a/sound/soc/ep93xx/ep93xx-i2s.c +++ b/sound/soc/ep93xx/ep93xx-i2s.c @@ -2,7 +2,7 @@ * linux/sound/soc/ep93xx-i2s.c * EP93xx I2S driver * - * Copyright (C) 2010 Ryan Mallon <ryan@bluewatersys.com> + * Copyright (C) 2010 Ryan Mallon * * Based on the original driver by: * Copyright (C) 2007 Chase Douglas <chasedouglas@gmail> @@ -70,11 +70,11 @@ struct ep93xx_i2s_info { struct ep93xx_pcm_dma_params ep93xx_i2s_dma_params[] = { [SNDRV_PCM_STREAM_PLAYBACK] = { .name = "i2s-pcm-out", - .dma_port = EP93XX_DMA_M2P_PORT_I2S1, + .dma_port = EP93XX_DMA_I2S1, }, [SNDRV_PCM_STREAM_CAPTURE] = { .name = "i2s-pcm-in", - .dma_port = EP93XX_DMA_M2P_PORT_I2S1, + .dma_port = EP93XX_DMA_I2S1, }, }; @@ -385,14 +385,14 @@ static int ep93xx_i2s_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { err = -ENODEV; - goto fail; + goto fail_free_info; } info->mem = request_mem_region(res->start, resource_size(res), pdev->name); if (!info->mem) { err = -EBUSY; - goto fail; + goto fail_free_info; } info->regs = ioremap(info->mem->start, resource_size(info->mem)); @@ -435,6 +435,7 @@ fail_unmap_mem: iounmap(info->regs); fail_release_mem: release_mem_region(info->mem->start, resource_size(info->mem)); +fail_free_info: kfree(info); fail: return err; @@ -477,6 +478,6 @@ module_init(ep93xx_i2s_init); module_exit(ep93xx_i2s_exit); MODULE_ALIAS("platform:ep93xx-i2s"); -MODULE_AUTHOR("Ryan Mallon <ryan@bluewatersys.com>"); +MODULE_AUTHOR("Ryan Mallon"); MODULE_DESCRIPTION("EP93XX I2S driver"); MODULE_LICENSE("GPL"); diff --git a/sound/soc/ep93xx/ep93xx-pcm.c b/sound/soc/ep93xx/ep93xx-pcm.c index a456e49..d00230a 100644 --- a/sound/soc/ep93xx/ep93xx-pcm.c +++ b/sound/soc/ep93xx/ep93xx-pcm.c @@ -5,7 +5,7 @@ * Copyright (C) 2006 Applied Data Systems * * Rewritten for the SoC audio subsystem (Based on PXA2xx code): - * Copyright (c) 2008 Ryan Mallon <ryan@bluewatersys.com> + * Copyright (c) 2008 Ryan Mallon * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -16,6 +16,7 @@ #include <linux/init.h> #include <linux/device.h> #include <linux/slab.h> +#include <linux/dmaengine.h> #include <linux/dma-mapping.h> #include <sound/core.h> @@ -53,43 +54,34 @@ static const struct snd_pcm_hardware ep93xx_pcm_hardware = { struct ep93xx_runtime_data { - struct ep93xx_dma_m2p_client cl; - struct ep93xx_pcm_dma_params *params; int pointer_bytes; - struct tasklet_struct period_tasklet; int periods; - struct ep93xx_dma_buffer buf[32]; + int period_bytes; + struct dma_chan *dma_chan; + struct ep93xx_dma_data dma_data; }; -static void ep93xx_pcm_period_elapsed(unsigned long data) +static void ep93xx_pcm_dma_callback(void *data) { - struct snd_pcm_substream *substream = (struct snd_pcm_substream *)data; - snd_pcm_period_elapsed(substream); -} + struct snd_pcm_substream *substream = data; + struct ep93xx_runtime_data *rtd = substream->runtime->private_data; -static void ep93xx_pcm_buffer_started(void *cookie, - struct ep93xx_dma_buffer *buf) -{ + rtd->pointer_bytes += rtd->period_bytes; + rtd->pointer_bytes %= rtd->period_bytes * rtd->periods; + + snd_pcm_period_elapsed(substream); } -static void ep93xx_pcm_buffer_finished(void *cookie, - struct ep93xx_dma_buffer *buf, - int bytes, int error) +static bool ep93xx_pcm_dma_filter(struct dma_chan *chan, void *filter_param) { - struct snd_pcm_substream *substream = cookie; - struct ep93xx_runtime_data *rtd = substream->runtime->private_data; - - if (buf == rtd->buf + rtd->periods - 1) - rtd->pointer_bytes = 0; - else - rtd->pointer_bytes += buf->size; + struct ep93xx_dma_data *data = filter_param; - if (!error) { - ep93xx_dma_m2p_submit_recursive(&rtd->cl, buf); - tasklet_schedule(&rtd->period_tasklet); - } else { - snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN); + if (data->direction == ep93xx_dma_chan_direction(chan)) { + chan->private = data; + return true; } + + return false; } static int ep93xx_pcm_open(struct snd_pcm_substream *substream) @@ -98,30 +90,38 @@ static int ep93xx_pcm_open(struct snd_pcm_substream *substream) struct snd_soc_dai *cpu_dai = soc_rtd->cpu_dai; struct ep93xx_pcm_dma_params *dma_params; struct ep93xx_runtime_data *rtd; + dma_cap_mask_t mask; int ret; - dma_params = snd_soc_dai_get_dma_data(cpu_dai, substream); + ret = snd_pcm_hw_constraint_integer(substream->runtime, + SNDRV_PCM_HW_PARAM_PERIODS); + if (ret < 0) + return ret; + snd_soc_set_runtime_hwparams(substream, &ep93xx_pcm_hardware); rtd = kmalloc(sizeof(*rtd), GFP_KERNEL); if (!rtd) return -ENOMEM; - memset(&rtd->period_tasklet, 0, sizeof(rtd->period_tasklet)); - rtd->period_tasklet.func = ep93xx_pcm_period_elapsed; - rtd->period_tasklet.data = (unsigned long)substream; - - rtd->cl.name = dma_params->name; - rtd->cl.flags = dma_params->dma_port | EP93XX_DMA_M2P_IGNORE_ERROR | - ((substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? - EP93XX_DMA_M2P_TX : EP93XX_DMA_M2P_RX); - rtd->cl.cookie = substream; - rtd->cl.buffer_started = ep93xx_pcm_buffer_started; - rtd->cl.buffer_finished = ep93xx_pcm_buffer_finished; - ret = ep93xx_dma_m2p_client_register(&rtd->cl); - if (ret < 0) { + dma_cap_zero(mask); + dma_cap_set(DMA_SLAVE, mask); + dma_cap_set(DMA_CYCLIC, mask); + + dma_params = snd_soc_dai_get_dma_data(cpu_dai, substream); + rtd->dma_data.port = dma_params->dma_port; + rtd->dma_data.name = dma_params->name; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + rtd->dma_data.direction = DMA_TO_DEVICE; + else + rtd->dma_data.direction = DMA_FROM_DEVICE; + + rtd->dma_chan = dma_request_channel(mask, ep93xx_pcm_dma_filter, + &rtd->dma_data); + if (!rtd->dma_chan) { kfree(rtd); - return ret; + return -EINVAL; } substream->runtime->private_data = rtd; @@ -132,31 +132,52 @@ static int ep93xx_pcm_close(struct snd_pcm_substream *substream) { struct ep93xx_runtime_data *rtd = substream->runtime->private_data; - ep93xx_dma_m2p_client_unregister(&rtd->cl); + dma_release_channel(rtd->dma_chan); kfree(rtd); return 0; } +static int ep93xx_pcm_dma_submit(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct ep93xx_runtime_data *rtd = runtime->private_data; + struct dma_chan *chan = rtd->dma_chan; + struct dma_device *dma_dev = chan->device; + struct dma_async_tx_descriptor *desc; + + rtd->pointer_bytes = 0; + desc = dma_dev->device_prep_dma_cyclic(chan, runtime->dma_addr, + rtd->period_bytes * rtd->periods, + rtd->period_bytes, + rtd->dma_data.direction); + if (!desc) + return -EINVAL; + + desc->callback = ep93xx_pcm_dma_callback; + desc->callback_param = substream; + + dmaengine_submit(desc); + return 0; +} + +static void ep93xx_pcm_dma_flush(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct ep93xx_runtime_data *rtd = runtime->private_data; + + dmaengine_terminate_all(rtd->dma_chan); +} + static int ep93xx_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_pcm_runtime *runtime = substream->runtime; struct ep93xx_runtime_data *rtd = runtime->private_data; - size_t totsize = params_buffer_bytes(params); - size_t period = params_period_bytes(params); - int i; snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer); - runtime->dma_bytes = totsize; - - rtd->periods = (totsize + period - 1) / period; - for (i = 0; i < rtd->periods; i++) { - rtd->buf[i].bus_addr = runtime->dma_addr + (i * period); - rtd->buf[i].size = period; - if ((i + 1) * period > totsize) - rtd->buf[i].size = totsize - (i * period); - } + rtd->periods = params_periods(params); + rtd->period_bytes = params_period_bytes(params); return 0; } @@ -168,24 +189,20 @@ static int ep93xx_pcm_hw_free(struct snd_pcm_substream *substream) static int ep93xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) { - struct ep93xx_runtime_data *rtd = substream->runtime->private_data; int ret; - int i; ret = 0; switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - rtd->pointer_bytes = 0; - for (i = 0; i < rtd->periods; i++) - ep93xx_dma_m2p_submit(&rtd->cl, rtd->buf + i); + ret = ep93xx_pcm_dma_submit(substream); break; case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - ep93xx_dma_m2p_flush(&rtd->cl); + ep93xx_pcm_dma_flush(substream); break; default: @@ -266,9 +283,11 @@ static void ep93xx_pcm_free_dma_buffers(struct snd_pcm *pcm) static u64 ep93xx_pcm_dmamask = 0xffffffff; -static int ep93xx_pcm_new(struct snd_card *card, struct snd_soc_dai *dai, - struct snd_pcm *pcm) +static int ep93xx_pcm_new(struct snd_soc_pcm_runtime *rtd) { + struct snd_card *card = rtd->card->snd_card; + struct snd_soc_dai *dai = rtd->cpu_dai; + struct snd_pcm *pcm = rtd->pcm; int ret = 0; if (!card->dev->dma_mask) @@ -333,6 +352,7 @@ static void __exit ep93xx_soc_platform_exit(void) module_init(ep93xx_soc_platform_init); module_exit(ep93xx_soc_platform_exit); -MODULE_AUTHOR("Ryan Mallon <ryan@bluewatersys.com>"); +MODULE_AUTHOR("Ryan Mallon"); MODULE_DESCRIPTION("EP93xx ALSA PCM interface"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:ep93xx-pcm-audio"); diff --git a/sound/soc/ep93xx/simone.c b/sound/soc/ep93xx/simone.c index 2868179..968cb31 100644 --- a/sound/soc/ep93xx/simone.c +++ b/sound/soc/ep93xx/simone.c @@ -39,53 +39,61 @@ static struct snd_soc_card snd_soc_simone = { }; static struct platform_device *simone_snd_ac97_device; -static struct platform_device *simone_snd_device; -static int __init simone_init(void) +static int __devinit simone_probe(struct platform_device *pdev) { + struct snd_soc_card *card = &snd_soc_simone; int ret; - if (!machine_is_sim_one()) - return -ENODEV; - - simone_snd_ac97_device = platform_device_alloc("ac97-codec", -1); - if (!simone_snd_ac97_device) - return -ENOMEM; + simone_snd_ac97_device = platform_device_register_simple("ac97-codec", + -1, NULL, 0); + if (IS_ERR(simone_snd_ac97_device)) + return PTR_ERR(simone_snd_ac97_device); - ret = platform_device_add(simone_snd_ac97_device); - if (ret) - goto fail1; + card->dev = &pdev->dev; - simone_snd_device = platform_device_alloc("soc-audio", -1); - if (!simone_snd_device) { - ret = -ENOMEM; - goto fail2; + ret = snd_soc_register_card(card); + if (ret) { + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", + ret); + platform_device_unregister(simone_snd_ac97_device); } - platform_set_drvdata(simone_snd_device, &snd_soc_simone); - ret = platform_device_add(simone_snd_device); - if (ret) - goto fail3; + return ret; +} + +static int __devexit simone_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + + snd_soc_unregister_card(card); + platform_device_unregister(simone_snd_ac97_device); return 0; +} -fail3: - platform_device_put(simone_snd_device); -fail2: - platform_device_del(simone_snd_ac97_device); -fail1: - platform_device_put(simone_snd_ac97_device); - return ret; +static struct platform_driver simone_driver = { + .driver = { + .name = "simone-audio", + .owner = THIS_MODULE, + }, + .probe = simone_probe, + .remove = __devexit_p(simone_remove), +}; + +static int __init simone_init(void) +{ + return platform_driver_register(&simone_driver); } module_init(simone_init); static void __exit simone_exit(void) { - platform_device_unregister(simone_snd_device); - platform_device_unregister(simone_snd_ac97_device); + platform_driver_unregister(&simone_driver); } module_exit(simone_exit); MODULE_DESCRIPTION("ALSA SoC Simplemachines Sim.One"); MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:simone-audio"); diff --git a/sound/soc/ep93xx/snappercl15.c b/sound/soc/ep93xx/snappercl15.c index dfe1d7f..2cde433 100644 --- a/sound/soc/ep93xx/snappercl15.c +++ b/sound/soc/ep93xx/snappercl15.c @@ -2,7 +2,7 @@ * snappercl15.c -- SoC audio for Bluewater Systems Snapper CL15 module * * Copyright (C) 2008 Bluewater Systems Ltd - * Author: Ryan Mallon <ryan@bluewatersys.com> + * Author: Ryan Mallon * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -12,6 +12,7 @@ */ #include <linux/platform_device.h> +#include <linux/module.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/soc.h> @@ -104,43 +105,62 @@ static struct snd_soc_card snd_soc_snappercl15 = { .num_links = 1, }; -static struct platform_device *snappercl15_snd_device; - -static int __init snappercl15_init(void) +static int __devinit snappercl15_probe(struct platform_device *pdev) { + struct snd_soc_card *card = &snd_soc_snappercl15; int ret; - if (!machine_is_snapper_cl15()) - return -ENODEV; - ret = ep93xx_i2s_acquire(EP93XX_SYSCON_DEVCFG_I2SONAC97, EP93XX_SYSCON_I2SCLKDIV_ORIDE | EP93XX_SYSCON_I2SCLKDIV_SPOL); if (ret) return ret; - snappercl15_snd_device = platform_device_alloc("soc-audio", -1); - if (!snappercl15_snd_device) - return -ENOMEM; - - platform_set_drvdata(snappercl15_snd_device, &snd_soc_snappercl15); - ret = platform_device_add(snappercl15_snd_device); - if (ret) - platform_device_put(snappercl15_snd_device); + card->dev = &pdev->dev; + + ret = snd_soc_register_card(card); + if (ret) { + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", + ret); + ep93xx_i2s_release(); + } return ret; } -static void __exit snappercl15_exit(void) +static int __devexit snappercl15_remove(struct platform_device *pdev) { - platform_device_unregister(snappercl15_snd_device); + struct snd_soc_card *card = platform_get_drvdata(pdev); + + snd_soc_unregister_card(card); ep93xx_i2s_release(); + + return 0; +} + +static struct platform_driver snappercl15_driver = { + .driver = { + .name = "snappercl15-audio", + .owner = THIS_MODULE, + }, + .probe = snappercl15_probe, + .remove = __devexit_p(snappercl15_remove), +}; + +static int __init snappercl15_init(void) +{ + return platform_driver_register(&snappercl15_driver); +} + +static void __exit snappercl15_exit(void) +{ + platform_driver_unregister(&snappercl15_driver); } module_init(snappercl15_init); module_exit(snappercl15_exit); -MODULE_AUTHOR("Ryan Mallon <ryan@bluewatersys.com>"); +MODULE_AUTHOR("Ryan Mallon"); MODULE_DESCRIPTION("ALSA SoC Snapper CL15"); MODULE_LICENSE("GPL"); - +MODULE_ALIAS("platform:snappercl15-audio"); |