[PATCH] Remove at91 and at32 directories
Sedji Gaouaou
sedji.gaouaou at atmel.com
Wed Oct 1 17:48:01 CEST 2008
Signed-off-by: Sedji Gaouaou <sedji.gaouaou at atmel.com>
---
sound/soc/at32/Kconfig | 34 --
sound/soc/at32/Makefile | 11 -
sound/soc/at32/at32-pcm.c | 492 -----------------------
sound/soc/at32/at32-pcm.h | 79 ----
sound/soc/at32/at32-ssc.c | 849 ---------------------------------------
sound/soc/at32/at32-ssc.h | 59 ---
sound/soc/at32/playpaq_wm8510.c | 523 ------------------------
sound/soc/at91/Kconfig | 10 -
sound/soc/at91/Makefile | 6 -
sound/soc/at91/at91-pcm.c | 434 --------------------
sound/soc/at91/at91-pcm.h | 72 ----
sound/soc/at91/at91-ssc.c | 791 ------------------------------------
sound/soc/at91/at91-ssc.h | 27 --
13 files changed, 0 insertions(+), 3387 deletions(-)
delete mode 100644 sound/soc/at32/Kconfig
delete mode 100644 sound/soc/at32/Makefile
delete mode 100644 sound/soc/at32/at32-pcm.c
delete mode 100644 sound/soc/at32/at32-pcm.h
delete mode 100644 sound/soc/at32/at32-ssc.c
delete mode 100644 sound/soc/at32/at32-ssc.h
delete mode 100644 sound/soc/at32/playpaq_wm8510.c
delete mode 100644 sound/soc/at91/Kconfig
delete mode 100644 sound/soc/at91/Makefile
delete mode 100644 sound/soc/at91/at91-pcm.c
delete mode 100644 sound/soc/at91/at91-pcm.h
delete mode 100644 sound/soc/at91/at91-ssc.c
delete mode 100644 sound/soc/at91/at91-ssc.h
diff --git a/sound/soc/at32/Kconfig b/sound/soc/at32/Kconfig
deleted file mode 100644
index b0765e8..0000000
--- a/sound/soc/at32/Kconfig
+++ /dev/null
@@ -1,34 +0,0 @@
-config SND_AT32_SOC
- tristate "SoC Audio for the Atmel AT32 System-on-a-Chip"
- depends on AVR32 && SND_SOC
- help
- Say Y or M if you want to add support for codecs attached to
- the AT32 SSC interface. You will also need to
- to select the audio interfaces to support below.
-
-
-config SND_AT32_SOC_SSC
- tristate
-
-
-
-config SND_AT32_SOC_PLAYPAQ
- tristate "SoC Audio support for PlayPaq with WM8510"
- depends on SND_AT32_SOC && BOARD_PLAYPAQ
- select SND_AT32_SOC_SSC
- select SND_SOC_WM8510
- help
- Say Y or M here if you want to add support for SoC audio
- on the LRS PlayPaq.
-
-
-
-config SND_AT32_SOC_PLAYPAQ_SLAVE
- bool "Run CODEC on PlayPaq in slave mode"
- depends on SND_AT32_SOC_PLAYPAQ
- default n
- help
- Say Y if you want to run with the AT32 SSC generating the BCLK
- and FRAME signals on the PlayPaq. Unless you want to play
- with the AT32 as the SSC master, you probably want to say N here,
- as this will give you better sound quality.
diff --git a/sound/soc/at32/Makefile b/sound/soc/at32/Makefile
deleted file mode 100644
index c03e55e..0000000
--- a/sound/soc/at32/Makefile
+++ /dev/null
@@ -1,11 +0,0 @@
-# AT32 Platform Support
-snd-soc-at32-objs := at32-pcm.o
-snd-soc-at32-ssc-objs := at32-ssc.o
-
-obj-$(CONFIG_SND_AT32_SOC) += snd-soc-at32.o
-obj-$(CONFIG_SND_AT32_SOC_SSC) += snd-soc-at32-ssc.o
-
-# AT32 Machine Support
-snd-soc-playpaq-objs := playpaq_wm8510.o
-
-obj-$(CONFIG_SND_AT32_SOC_PLAYPAQ) += snd-soc-playpaq.o
diff --git a/sound/soc/at32/at32-pcm.c b/sound/soc/at32/at32-pcm.c
deleted file mode 100644
index c83584f..0000000
--- a/sound/soc/at32/at32-pcm.c
+++ /dev/null
@@ -1,492 +0,0 @@
-/* sound/soc/at32/at32-pcm.c
- * ASoC PCM interface for Atmel AT32 SoC
- *
- * Copyright (C) 2008 Long Range Systems
- * Geoffrey Wossum <gwossum at acm.org>
- *
- * 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
- * published by the Free Software Foundation.
- *
- * Note that this is basically a port of the sound/soc/at91-pcm.c to
- * the AVR32 kernel. Thanks to Frank Mandarino for that code.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/dma-mapping.h>
-#include <linux/atmel_pdc.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-
-#include "at32-pcm.h"
-
-
-
-/*--------------------------------------------------------------------------*\
- * Hardware definition
-\*--------------------------------------------------------------------------*/
-/* TODO: These values were taken from the AT91 platform driver, check
- * them against real values for AT32
- */
-static const struct snd_pcm_hardware at32_pcm_hardware = {
- .info = (SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_BLOCK_TRANSFER |
- SNDRV_PCM_INFO_PAUSE),
-
- .formats = SNDRV_PCM_FMTBIT_S16,
- .period_bytes_min = 32,
- .period_bytes_max = 8192, /* 512 frames * 16 bytes / frame */
- .periods_min = 2,
- .periods_max = 1024,
- .buffer_bytes_max = 32 * 1024,
-};
-
-
-
-/*--------------------------------------------------------------------------*\
- * Data types
-\*--------------------------------------------------------------------------*/
-struct at32_runtime_data {
- struct at32_pcm_dma_params *params;
- dma_addr_t dma_buffer; /* physical address of DMA buffer */
- dma_addr_t dma_buffer_end; /* first address beyond DMA buffer */
- size_t period_size;
-
- dma_addr_t period_ptr; /* physical address of next period */
- int periods; /* period index of period_ptr */
-
- /* Save PDC registers (for power management) */
- u32 pdc_xpr_save;
- u32 pdc_xcr_save;
- u32 pdc_xnpr_save;
- u32 pdc_xncr_save;
-};
-
-
-
-/*--------------------------------------------------------------------------*\
- * Helper functions
-\*--------------------------------------------------------------------------*/
-static int at32_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream)
-{
- struct snd_pcm_substream *substream = pcm->streams[stream].substream;
- struct snd_dma_buffer *dmabuf = &substream->dma_buffer;
- size_t size = at32_pcm_hardware.buffer_bytes_max;
-
- dmabuf->dev.type = SNDRV_DMA_TYPE_DEV;
- dmabuf->dev.dev = pcm->card->dev;
- dmabuf->private_data = NULL;
- dmabuf->area = dma_alloc_coherent(pcm->card->dev, size,
- &dmabuf->addr, GFP_KERNEL);
- pr_debug("at32_pcm: preallocate_dma_buffer: "
- "area=%p, addr=%p, size=%ld\n",
- (void *)dmabuf->area, (void *)dmabuf->addr, size);
-
- if (!dmabuf->area)
- return -ENOMEM;
-
- dmabuf->bytes = size;
- return 0;
-}
-
-
-
-/*--------------------------------------------------------------------------*\
- * ISR
-\*--------------------------------------------------------------------------*/
-static void at32_pcm_dma_irq(u32 ssc_sr, struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *rtd = substream->runtime;
- struct at32_runtime_data *prtd = rtd->private_data;
- struct at32_pcm_dma_params *params = prtd->params;
- static int count;
-
- count++;
- if (ssc_sr & params->mask->ssc_endbuf) {
- pr_warning("at32-pcm: buffer %s on %s (SSC_SR=%#x, count=%d)\n",
- substream->stream == SNDRV_PCM_STREAM_PLAYBACK ?
- "underrun" : "overrun", params->name, ssc_sr, count);
-
- /* re-start the PDC */
- ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
- params->mask->pdc_disable);
- prtd->period_ptr += prtd->period_size;
- if (prtd->period_ptr >= prtd->dma_buffer_end)
- prtd->period_ptr = prtd->dma_buffer;
-
-
- ssc_writex(params->ssc->regs, params->pdc->xpr,
- prtd->period_ptr);
- ssc_writex(params->ssc->regs, params->pdc->xcr,
- prtd->period_size / params->pdc_xfer_size);
- ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
- params->mask->pdc_enable);
- }
-
-
- if (ssc_sr & params->mask->ssc_endx) {
- /* Load the PDC next pointer and counter registers */
- prtd->period_ptr += prtd->period_size;
- if (prtd->period_ptr >= prtd->dma_buffer_end)
- prtd->period_ptr = prtd->dma_buffer;
- ssc_writex(params->ssc->regs, params->pdc->xnpr,
- prtd->period_ptr);
- ssc_writex(params->ssc->regs, params->pdc->xncr,
- prtd->period_size / params->pdc_xfer_size);
- }
-
-
- snd_pcm_period_elapsed(substream);
-}
-
-
-
-/*--------------------------------------------------------------------------*\
- * PCM operations
-\*--------------------------------------------------------------------------*/
-static int at32_pcm_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct at32_runtime_data *prtd = runtime->private_data;
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
-
- /* this may get called several times by oss emulation
- * with different params
- */
- snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
- runtime->dma_bytes = params_buffer_bytes(params);
-
- prtd->params = rtd->dai->cpu_dai->dma_data;
- prtd->params->dma_intr_handler = at32_pcm_dma_irq;
-
- prtd->dma_buffer = runtime->dma_addr;
- prtd->dma_buffer_end = runtime->dma_addr + runtime->dma_bytes;
- prtd->period_size = params_period_bytes(params);
-
- pr_debug("hw_params: DMA for %s initialized "
- "(dma_bytes=%ld, period_size=%ld)\n",
- prtd->params->name, runtime->dma_bytes, prtd->period_size);
-
- return 0;
-}
-
-
-
-static int at32_pcm_hw_free(struct snd_pcm_substream *substream)
-{
- struct at32_runtime_data *prtd = substream->runtime->private_data;
- struct at32_pcm_dma_params *params = prtd->params;
-
- if (params != NULL) {
- ssc_writex(params->ssc->regs, SSC_PDC_PTCR,
- params->mask->pdc_disable);
- prtd->params->dma_intr_handler = NULL;
- }
-
- return 0;
-}
-
-
-
-static int at32_pcm_prepare(struct snd_pcm_substream *substream)
-{
- struct at32_runtime_data *prtd = substream->runtime->private_data;
- struct at32_pcm_dma_params *params = prtd->params;
-
- ssc_writex(params->ssc->regs, SSC_IDR,
- params->mask->ssc_endx | params->mask->ssc_endbuf);
- ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
- params->mask->pdc_disable);
-
- return 0;
-}
-
-
-static int at32_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
-{
- struct snd_pcm_runtime *rtd = substream->runtime;
- struct at32_runtime_data *prtd = rtd->private_data;
- struct at32_pcm_dma_params *params = prtd->params;
- int ret = 0;
-
- pr_debug("at32_pcm_trigger: buffer_size = %ld, "
- "dma_area = %p, dma_bytes = %ld\n",
- rtd->buffer_size, rtd->dma_area, rtd->dma_bytes);
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- prtd->period_ptr = prtd->dma_buffer;
-
- ssc_writex(params->ssc->regs, params->pdc->xpr,
- prtd->period_ptr);
- ssc_writex(params->ssc->regs, params->pdc->xcr,
- prtd->period_size / params->pdc_xfer_size);
-
- prtd->period_ptr += prtd->period_size;
- ssc_writex(params->ssc->regs, params->pdc->xnpr,
- prtd->period_ptr);
- ssc_writex(params->ssc->regs, params->pdc->xncr,
- prtd->period_size / params->pdc_xfer_size);
-
- pr_debug("trigger: period_ptr=%lx, xpr=%x, "
- "xcr=%d, xnpr=%x, xncr=%d\n",
- (unsigned long)prtd->period_ptr,
- ssc_readx(params->ssc->regs, params->pdc->xpr),
- ssc_readx(params->ssc->regs, params->pdc->xcr),
- ssc_readx(params->ssc->regs, params->pdc->xnpr),
- ssc_readx(params->ssc->regs, params->pdc->xncr));
-
- ssc_writex(params->ssc->regs, SSC_IER,
- params->mask->ssc_endx | params->mask->ssc_endbuf);
- ssc_writex(params->ssc->regs, SSC_PDC_PTCR,
- params->mask->pdc_enable);
-
- pr_debug("sr=%x, imr=%x\n",
- ssc_readx(params->ssc->regs, SSC_SR),
- ssc_readx(params->ssc->regs, SSC_IER));
- break; /* SNDRV_PCM_TRIGGER_START */
-
-
-
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
- params->mask->pdc_disable);
- break;
-
-
- case SNDRV_PCM_TRIGGER_RESUME:
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
- params->mask->pdc_enable);
- break;
-
- default:
- ret = -EINVAL;
- }
-
- return ret;
-}
-
-
-
-static snd_pcm_uframes_t at32_pcm_pointer(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct at32_runtime_data *prtd = runtime->private_data;
- struct at32_pcm_dma_params *params = prtd->params;
- dma_addr_t ptr;
- snd_pcm_uframes_t x;
-
- ptr = (dma_addr_t) ssc_readx(params->ssc->regs, params->pdc->xpr);
- x = bytes_to_frames(runtime, ptr - prtd->dma_buffer);
-
- if (x == runtime->buffer_size)
- x = 0;
-
- return x;
-}
-
-
-
-static int at32_pcm_open(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct at32_runtime_data *prtd;
- int ret = 0;
-
- snd_soc_set_runtime_hwparams(substream, &at32_pcm_hardware);
-
- /* ensure that buffer size is a multiple of period size */
- ret = snd_pcm_hw_constraint_integer(runtime,
- SNDRV_PCM_HW_PARAM_PERIODS);
- if (ret < 0)
- goto out;
-
- prtd = kzalloc(sizeof(*prtd), GFP_KERNEL);
- if (prtd == NULL) {
- ret = -ENOMEM;
- goto out;
- }
- runtime->private_data = prtd;
-
-
-out:
- return ret;
-}
-
-
-
-static int at32_pcm_close(struct snd_pcm_substream *substream)
-{
- struct at32_runtime_data *prtd = substream->runtime->private_data;
-
- kfree(prtd);
- return 0;
-}
-
-
-static int at32_pcm_mmap(struct snd_pcm_substream *substream,
- struct vm_area_struct *vma)
-{
- return remap_pfn_range(vma, vma->vm_start,
- substream->dma_buffer.addr >> PAGE_SHIFT,
- vma->vm_end - vma->vm_start, vma->vm_page_prot);
-}
-
-
-
-static struct snd_pcm_ops at32_pcm_ops = {
- .open = at32_pcm_open,
- .close = at32_pcm_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = at32_pcm_hw_params,
- .hw_free = at32_pcm_hw_free,
- .prepare = at32_pcm_prepare,
- .trigger = at32_pcm_trigger,
- .pointer = at32_pcm_pointer,
- .mmap = at32_pcm_mmap,
-};
-
-
-
-/*--------------------------------------------------------------------------*\
- * ASoC platform driver
-\*--------------------------------------------------------------------------*/
-static u64 at32_pcm_dmamask = 0xffffffff;
-
-static int at32_pcm_new(struct snd_card *card,
- struct snd_soc_dai *dai,
- struct snd_pcm *pcm)
-{
- int ret = 0;
-
- if (!card->dev->dma_mask)
- card->dev->dma_mask = &at32_pcm_dmamask;
- if (!card->dev->coherent_dma_mask)
- card->dev->coherent_dma_mask = 0xffffffff;
-
- if (dai->playback.channels_min) {
- ret = at32_pcm_preallocate_dma_buffer(
- pcm, SNDRV_PCM_STREAM_PLAYBACK);
- if (ret)
- goto out;
- }
-
- if (dai->capture.channels_min) {
- pr_debug("at32-pcm: Allocating PCM capture DMA buffer\n");
- ret = at32_pcm_preallocate_dma_buffer(
- pcm, SNDRV_PCM_STREAM_CAPTURE);
- if (ret)
- goto out;
- }
-
-
-out:
- return ret;
-}
-
-
-
-static void at32_pcm_free_dma_buffers(struct snd_pcm *pcm)
-{
- struct snd_pcm_substream *substream;
- struct snd_dma_buffer *buf;
- int stream;
-
- for (stream = 0; stream < 2; stream++) {
- substream = pcm->streams[stream].substream;
- if (substream == NULL)
- continue;
-
- buf = &substream->dma_buffer;
- if (!buf->area)
- continue;
- dma_free_coherent(pcm->card->dev, buf->bytes,
- buf->area, buf->addr);
- buf->area = NULL;
- }
-}
-
-
-
-#ifdef CONFIG_PM
-static int at32_pcm_suspend(struct platform_device *pdev,
- struct snd_soc_dai *dai)
-{
- struct snd_pcm_runtime *runtime = dai->runtime;
- struct at32_runtime_data *prtd;
- struct at32_pcm_dma_params *params;
-
- if (runtime == NULL)
- return 0;
- prtd = runtime->private_data;
- params = prtd->params;
-
- /* Disable the PDC and save the PDC registers */
- ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
- params->mask->pdc_disable);
-
- prtd->pdc_xpr_save = ssc_readx(params->ssc->regs, params->pdc->xpr);
- prtd->pdc_xcr_save = ssc_readx(params->ssc->regs, params->pdc->xcr);
- prtd->pdc_xnpr_save = ssc_readx(params->ssc->regs, params->pdc->xnpr);
- prtd->pdc_xncr_save = ssc_readx(params->ssc->regs, params->pdc->xncr);
-
- return 0;
-}
-
-
-
-static int at32_pcm_resume(struct platform_device *pdev,
- struct snd_soc_dai *dai)
-{
- struct snd_pcm_runtime *runtime = dai->runtime;
- struct at32_runtime_data *prtd;
- struct at32_pcm_dma_params *params;
-
- if (runtime == NULL)
- return 0;
- prtd = runtime->private_data;
- params = prtd->params;
-
- /* Restore the PDC registers and enable the PDC */
- ssc_writex(params->ssc->regs, params->pdc->xpr, prtd->pdc_xpr_save);
- ssc_writex(params->ssc->regs, params->pdc->xcr, prtd->pdc_xcr_save);
- ssc_writex(params->ssc->regs, params->pdc->xnpr, prtd->pdc_xnpr_save);
- ssc_writex(params->ssc->regs, params->pdc->xncr, prtd->pdc_xncr_save);
-
- ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR, params->mask->pdc_enable);
- return 0;
-}
-#else /* CONFIG_PM */
-# define at32_pcm_suspend NULL
-# define at32_pcm_resume NULL
-#endif /* CONFIG_PM */
-
-
-
-struct snd_soc_platform at32_soc_platform = {
- .name = "at32-audio",
- .pcm_ops = &at32_pcm_ops,
- .pcm_new = at32_pcm_new,
- .pcm_free = at32_pcm_free_dma_buffers,
- .suspend = at32_pcm_suspend,
- .resume = at32_pcm_resume,
-};
-EXPORT_SYMBOL_GPL(at32_soc_platform);
-
-
-
-MODULE_AUTHOR("Geoffrey Wossum <gwossum at acm.org>");
-MODULE_DESCRIPTION("Atmel AT32 PCM module");
-MODULE_LICENSE("GPL");
diff --git a/sound/soc/at32/at32-pcm.h b/sound/soc/at32/at32-pcm.h
deleted file mode 100644
index 2a52430..0000000
--- a/sound/soc/at32/at32-pcm.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/* sound/soc/at32/at32-pcm.h
- * ASoC PCM interface for Atmel AT32 SoC
- *
- * Copyright (C) 2008 Long Range Systems
- * Geoffrey Wossum <gwossum at acm.org>
- *
- * 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
- * published by the Free Software Foundation.
- */
-
-#ifndef __SOUND_SOC_AT32_AT32_PCM_H
-#define __SOUND_SOC_AT32_AT32_PCM_H __FILE__
-
-#include <linux/atmel-ssc.h>
-
-
-/*
- * Registers and status bits that are required by the PCM driver
- * TODO: Is ptcr really used?
- */
-struct at32_pdc_regs {
- u32 xpr; /* PDC RX/TX pointer */
- u32 xcr; /* PDC RX/TX counter */
- u32 xnpr; /* PDC next RX/TX pointer */
- u32 xncr; /* PDC next RX/TX counter */
- u32 ptcr; /* PDC transfer control */
-};
-
-
-
-/*
- * SSC mask info
- */
-struct at32_ssc_mask {
- u32 ssc_enable; /* SSC RX/TX enable */
- u32 ssc_disable; /* SSC RX/TX disable */
- u32 ssc_endx; /* SSC ENDTX or ENDRX */
- u32 ssc_endbuf; /* SSC TXBUFF or RXBUFF */
- u32 pdc_enable; /* PDC RX/TX enable */
- u32 pdc_disable; /* PDC RX/TX disable */
-};
-
-
-
-/*
- * This structure, shared between the PCM driver and the interface,
- * contains all information required by the PCM driver to perform the
- * PDC DMA operation. All fields except dma_intr_handler() are initialized
- * by the interface. The dms_intr_handler() pointer is set by the PCM
- * driver and called by the interface SSC interrupt handler if it is
- * non-NULL.
- */
-struct at32_pcm_dma_params {
- char *name; /* stream identifier */
- int pdc_xfer_size; /* PDC counter increment in bytes */
- struct ssc_device *ssc; /* SSC device for stream */
- struct at32_pdc_regs *pdc; /* PDC register info */
- struct at32_ssc_mask *mask; /* SSC mask info */
- struct snd_pcm_substream *substream;
- void (*dma_intr_handler) (u32, struct snd_pcm_substream *);
-};
-
-
-
-/*
- * The AT32 ASoC platform driver
- */
-extern struct snd_soc_platform at32_soc_platform;
-
-
-
-/*
- * SSC register access (since ssc_writel() / ssc_readl() require literal name)
- */
-#define ssc_readx(base, reg) (__raw_readl((base) + (reg)))
-#define ssc_writex(base, reg, value) __raw_writel((value), (base) + (reg))
-
-#endif /* __SOUND_SOC_AT32_AT32_PCM_H */
diff --git a/sound/soc/at32/at32-ssc.c b/sound/soc/at32/at32-ssc.c
deleted file mode 100644
index 4ef6492..0000000
--- a/sound/soc/at32/at32-ssc.c
+++ /dev/null
@@ -1,849 +0,0 @@
-/* sound/soc/at32/at32-ssc.c
- * ASoC platform driver for AT32 using SSC as DAI
- *
- * Copyright (C) 2008 Long Range Systems
- * Geoffrey Wossum <gwossum at acm.org>
- *
- * 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
- * published by the Free Software Foundation.
- *
- * Note that this is basically a port of the sound/soc/at91-ssc.c to
- * the AVR32 kernel. Thanks to Frank Mandarino for that code.
- */
-
-/* #define DEBUG */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/device.h>
-#include <linux/delay.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/atmel_pdc.h>
-#include <linux/atmel-ssc.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/initval.h>
-#include <sound/soc.h>
-
-#include "at32-pcm.h"
-#include "at32-ssc.h"
-
-
-
-/*-------------------------------------------------------------------------*\
- * Constants
-\*-------------------------------------------------------------------------*/
-#define NUM_SSC_DEVICES 3
-
-/*
- * SSC direction masks
- */
-#define SSC_DIR_MASK_UNUSED 0
-#define SSC_DIR_MASK_PLAYBACK 1
-#define SSC_DIR_MASK_CAPTURE 2
-
-/*
- * SSC register values that Atmel left out of <linux/atmel-ssc.h>. These
- * are expected to be used with SSC_BF
- */
-/* START bit field values */
-#define SSC_START_CONTINUOUS 0
-#define SSC_START_TX_RX 1
-#define SSC_START_LOW_RF 2
-#define SSC_START_HIGH_RF 3
-#define SSC_START_FALLING_RF 4
-#define SSC_START_RISING_RF 5
-#define SSC_START_LEVEL_RF 6
-#define SSC_START_EDGE_RF 7
-#define SSS_START_COMPARE_0 8
-
-/* CKI bit field values */
-#define SSC_CKI_FALLING 0
-#define SSC_CKI_RISING 1
-
-/* CKO bit field values */
-#define SSC_CKO_NONE 0
-#define SSC_CKO_CONTINUOUS 1
-#define SSC_CKO_TRANSFER 2
-
-/* CKS bit field values */
-#define SSC_CKS_DIV 0
-#define SSC_CKS_CLOCK 1
-#define SSC_CKS_PIN 2
-
-/* FSEDGE bit field values */
-#define SSC_FSEDGE_POSITIVE 0
-#define SSC_FSEDGE_NEGATIVE 1
-
-/* FSOS bit field values */
-#define SSC_FSOS_NONE 0
-#define SSC_FSOS_NEGATIVE 1
-#define SSC_FSOS_POSITIVE 2
-#define SSC_FSOS_LOW 3
-#define SSC_FSOS_HIGH 4
-#define SSC_FSOS_TOGGLE 5
-
-#define START_DELAY 1
-
-
-
-/*-------------------------------------------------------------------------*\
- * Module data
-\*-------------------------------------------------------------------------*/
-/*
- * SSC PDC registered required by the PCM DMA engine
- */
-static struct at32_pdc_regs pdc_tx_reg = {
- .xpr = SSC_PDC_TPR,
- .xcr = SSC_PDC_TCR,
- .xnpr = SSC_PDC_TNPR,
- .xncr = SSC_PDC_TNCR,
-};
-
-
-
-static struct at32_pdc_regs pdc_rx_reg = {
- .xpr = SSC_PDC_RPR,
- .xcr = SSC_PDC_RCR,
- .xnpr = SSC_PDC_RNPR,
- .xncr = SSC_PDC_RNCR,
-};
-
-
-
-/*
- * SSC and PDC status bits for transmit and receive
- */
-static struct at32_ssc_mask ssc_tx_mask = {
- .ssc_enable = SSC_BIT(CR_TXEN),
- .ssc_disable = SSC_BIT(CR_TXDIS),
- .ssc_endx = SSC_BIT(SR_ENDTX),
- .ssc_endbuf = SSC_BIT(SR_TXBUFE),
- .pdc_enable = SSC_BIT(PDC_PTCR_TXTEN),
- .pdc_disable = SSC_BIT(PDC_PTCR_TXTDIS),
-};
-
-
-
-static struct at32_ssc_mask ssc_rx_mask = {
- .ssc_enable = SSC_BIT(CR_RXEN),
- .ssc_disable = SSC_BIT(CR_RXDIS),
- .ssc_endx = SSC_BIT(SR_ENDRX),
- .ssc_endbuf = SSC_BIT(SR_RXBUFF),
- .pdc_enable = SSC_BIT(PDC_PTCR_RXTEN),
- .pdc_disable = SSC_BIT(PDC_PTCR_RXTDIS),
-};
-
-
-
-/*
- * DMA parameters for each SSC
- */
-static struct at32_pcm_dma_params ssc_dma_params[NUM_SSC_DEVICES][2] = {
- {
- {
- .name = "SSC0 PCM out",
- .pdc = &pdc_tx_reg,
- .mask = &ssc_tx_mask,
- },
- {
- .name = "SSC0 PCM in",
- .pdc = &pdc_rx_reg,
- .mask = &ssc_rx_mask,
- },
- },
- {
- {
- .name = "SSC1 PCM out",
- .pdc = &pdc_tx_reg,
- .mask = &ssc_tx_mask,
- },
- {
- .name = "SSC1 PCM in",
- .pdc = &pdc_rx_reg,
- .mask = &ssc_rx_mask,
- },
- },
- {
- {
- .name = "SSC2 PCM out",
- .pdc = &pdc_tx_reg,
- .mask = &ssc_tx_mask,
- },
- {
- .name = "SSC2 PCM in",
- .pdc = &pdc_rx_reg,
- .mask = &ssc_rx_mask,
- },
- },
-};
-
-
-
-static struct at32_ssc_info ssc_info[NUM_SSC_DEVICES] = {
- {
- .name = "ssc0",
- .lock = __SPIN_LOCK_UNLOCKED(ssc_info[0].lock),
- .dir_mask = SSC_DIR_MASK_UNUSED,
- .initialized = 0,
- },
- {
- .name = "ssc1",
- .lock = __SPIN_LOCK_UNLOCKED(ssc_info[1].lock),
- .dir_mask = SSC_DIR_MASK_UNUSED,
- .initialized = 0,
- },
- {
- .name = "ssc2",
- .lock = __SPIN_LOCK_UNLOCKED(ssc_info[2].lock),
- .dir_mask = SSC_DIR_MASK_UNUSED,
- .initialized = 0,
- },
-};
-
-
-
-
-/*-------------------------------------------------------------------------*\
- * ISR
-\*-------------------------------------------------------------------------*/
-/*
- * SSC interrupt handler. Passes PDC interrupts to the DMA interrupt
- * handler in the PCM driver.
- */
-static irqreturn_t at32_ssc_interrupt(int irq, void *dev_id)
-{
- struct at32_ssc_info *ssc_p = dev_id;
- struct at32_pcm_dma_params *dma_params;
- u32 ssc_sr;
- u32 ssc_substream_mask;
- int i;
-
- ssc_sr = (ssc_readl(ssc_p->ssc->regs, SR) &
- ssc_readl(ssc_p->ssc->regs, IMR));
-
- /*
- * Loop through substreams attached to this SSC. If a DMA-related
- * interrupt occured on that substream, call the DMA interrupt
- * handler function, if one has been registered in the dma_param
- * structure by the PCM driver.
- */
- for (i = 0; i < ARRAY_SIZE(ssc_p->dma_params); i++) {
- dma_params = ssc_p->dma_params[i];
-
- if ((dma_params != NULL) &&
- (dma_params->dma_intr_handler != NULL)) {
- ssc_substream_mask = (dma_params->mask->ssc_endx |
- dma_params->mask->ssc_endbuf);
- if (ssc_sr & ssc_substream_mask) {
- dma_params->dma_intr_handler(ssc_sr,
- dma_params->
- substream);
- }
- }
- }
-
-
- return IRQ_HANDLED;
-}
-
-/*-------------------------------------------------------------------------*\
- * DAI functions
-\*-------------------------------------------------------------------------*/
-/*
- * Startup. Only that one substream allowed in each direction.
- */
-static int at32_ssc_startup(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct at32_ssc_info *ssc_p = &ssc_info[rtd->dai->cpu_dai->id];
- int dir_mask;
-
- dir_mask = ((substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
- SSC_DIR_MASK_PLAYBACK : SSC_DIR_MASK_CAPTURE);
-
- spin_lock_irq(&ssc_p->lock);
- if (ssc_p->dir_mask & dir_mask) {
- spin_unlock_irq(&ssc_p->lock);
- return -EBUSY;
- }
- ssc_p->dir_mask |= dir_mask;
- spin_unlock_irq(&ssc_p->lock);
-
- return 0;
-}
-
-
-
-/*
- * Shutdown. Clear DMA parameters and shutdown the SSC if there
- * are no other substreams open.
- */
-static void at32_ssc_shutdown(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct at32_ssc_info *ssc_p = &ssc_info[rtd->dai->cpu_dai->id];
- struct at32_pcm_dma_params *dma_params;
- int dir_mask;
-
- dma_params = ssc_p->dma_params[substream->stream];
-
- if (dma_params != NULL) {
- ssc_writel(dma_params->ssc->regs, CR,
- dma_params->mask->ssc_disable);
- pr_debug("%s disabled SSC_SR=0x%08x\n",
- (substream->stream ? "receiver" : "transmit"),
- ssc_readl(ssc_p->ssc->regs, SR));
-
- dma_params->ssc = NULL;
- dma_params->substream = NULL;
- ssc_p->dma_params[substream->stream] = NULL;
- }
-
-
- dir_mask = 1 << substream->stream;
- spin_lock_irq(&ssc_p->lock);
- ssc_p->dir_mask &= ~dir_mask;
- if (!ssc_p->dir_mask) {
- /* Shutdown the SSC clock */
- pr_debug("at32-ssc: Stopping user %d clock\n",
- ssc_p->ssc->user);
- clk_disable(ssc_p->ssc->clk);
-
- if (ssc_p->initialized) {
- free_irq(ssc_p->ssc->irq, ssc_p);
- ssc_p->initialized = 0;
- }
-
- /* Reset the SSC */
- ssc_writel(ssc_p->ssc->regs, CR, SSC_BIT(CR_SWRST));
-
- /* clear the SSC dividers */
- ssc_p->cmr_div = 0;
- ssc_p->tcmr_period = 0;
- ssc_p->rcmr_period = 0;
- }
- spin_unlock_irq(&ssc_p->lock);
-}
-
-
-
-/*
- * Set the SSC system clock rate
- */
-static int at32_ssc_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
- int clk_id, unsigned int freq, int dir)
-{
- /* TODO: What the heck do I do here? */
- return 0;
-}
-
-
-
-/*
- * Record DAI format for use by hw_params()
- */
-static int at32_ssc_set_dai_fmt(struct snd_soc_dai *cpu_dai,
- unsigned int fmt)
-{
- struct at32_ssc_info *ssc_p = &ssc_info[cpu_dai->id];
-
- ssc_p->daifmt = fmt;
- return 0;
-}
-
-
-
-/*
- * Record SSC clock dividers for use in hw_params()
- */
-static int at32_ssc_set_dai_clkdiv(struct snd_soc_dai *cpu_dai,
- int div_id, int div)
-{
- struct at32_ssc_info *ssc_p = &ssc_info[cpu_dai->id];
-
- switch (div_id) {
- case AT32_SSC_CMR_DIV:
- /*
- * The same master clock divider is used for both
- * transmit and receive, so if a value has already
- * been set, it must match this value
- */
- if (ssc_p->cmr_div == 0)
- ssc_p->cmr_div = div;
- else if (div != ssc_p->cmr_div)
- return -EBUSY;
- break;
-
- case AT32_SSC_TCMR_PERIOD:
- ssc_p->tcmr_period = div;
- break;
-
- case AT32_SSC_RCMR_PERIOD:
- ssc_p->rcmr_period = div;
- break;
-
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-
-
-/*
- * Configure the SSC
- */
-static int at32_ssc_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- int id = rtd->dai->cpu_dai->id;
- struct at32_ssc_info *ssc_p = &ssc_info[id];
- struct at32_pcm_dma_params *dma_params;
- int channels, bits;
- u32 tfmr, rfmr, tcmr, rcmr;
- int start_event;
- int ret;
-
-
- /*
- * Currently, there is only one set of dma_params for each direction.
- * If more are added, this code will have to be changed to select
- * the proper set
- */
- dma_params = &ssc_dma_params[id][substream->stream];
- dma_params->ssc = ssc_p->ssc;
- dma_params->substream = substream;
-
- ssc_p->dma_params[substream->stream] = dma_params;
-
-
- /*
- * The cpu_dai->dma_data field is only used to communicate the
- * appropriate DMA parameters to the PCM driver's hw_params()
- * function. It should not be used for other purposes as it
- * is common to all substreams.
- */
- rtd->dai->cpu_dai->dma_data = dma_params;
-
- channels = params_channels(params);
-
-
- /*
- * Determine sample size in bits and the PDC increment
- */
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S8:
- bits = 8;
- dma_params->pdc_xfer_size = 1;
- break;
-
- case SNDRV_PCM_FORMAT_S16:
- bits = 16;
- dma_params->pdc_xfer_size = 2;
- break;
-
- case SNDRV_PCM_FORMAT_S24:
- bits = 24;
- dma_params->pdc_xfer_size = 4;
- break;
-
- case SNDRV_PCM_FORMAT_S32:
- bits = 32;
- dma_params->pdc_xfer_size = 4;
- break;
-
- default:
- pr_warning("at32-ssc: Unsupported PCM format %d",
- params_format(params));
- return -EINVAL;
- }
- pr_debug("at32-ssc: bits = %d, pdc_xfer_size = %d, channels = %d\n",
- bits, dma_params->pdc_xfer_size, channels);
-
-
- /*
- * The SSC only supports up to 16-bit samples in I2S format, due
- * to the size of the Frame Mode Register FSLEN field.
- */
- if ((ssc_p->daifmt & SND_SOC_DAIFMT_FORMAT_MASK) == SND_SOC_DAIFMT_I2S)
- if (bits > 16) {
- pr_warning("at32-ssc: "
- "sample size %d is too large for I2S\n",
- bits);
- return -EINVAL;
- }
-
-
- /*
- * Compute the SSC register settings
- */
- switch (ssc_p->daifmt & (SND_SOC_DAIFMT_FORMAT_MASK |
- SND_SOC_DAIFMT_MASTER_MASK)) {
- case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS:
- /*
- * I2S format, SSC provides BCLK and LRS clocks.
- *
- * The SSC transmit and receive clocks are generated from the
- * MCK divider, and the BCLK signal is output on the SSC TK line
- */
- pr_debug("at32-ssc: SSC mode is I2S BCLK / FRAME master\n");
- rcmr = (SSC_BF(RCMR_PERIOD, ssc_p->rcmr_period) |
- SSC_BF(RCMR_STTDLY, START_DELAY) |
- SSC_BF(RCMR_START, SSC_START_FALLING_RF) |
- SSC_BF(RCMR_CKI, SSC_CKI_RISING) |
- SSC_BF(RCMR_CKO, SSC_CKO_NONE) |
- SSC_BF(RCMR_CKS, SSC_CKS_DIV));
-
- rfmr = (SSC_BF(RFMR_FSEDGE, SSC_FSEDGE_POSITIVE) |
- SSC_BF(RFMR_FSOS, SSC_FSOS_NEGATIVE) |
- SSC_BF(RFMR_FSLEN, bits - 1) |
- SSC_BF(RFMR_DATNB, channels - 1) |
- SSC_BIT(RFMR_MSBF) | SSC_BF(RFMR_DATLEN, bits - 1));
-
- tcmr = (SSC_BF(TCMR_PERIOD, ssc_p->tcmr_period) |
- SSC_BF(TCMR_STTDLY, START_DELAY) |
- SSC_BF(TCMR_START, SSC_START_FALLING_RF) |
- SSC_BF(TCMR_CKI, SSC_CKI_FALLING) |
- SSC_BF(TCMR_CKO, SSC_CKO_CONTINUOUS) |
- SSC_BF(TCMR_CKS, SSC_CKS_DIV));
-
- tfmr = (SSC_BF(TFMR_FSEDGE, SSC_FSEDGE_POSITIVE) |
- SSC_BF(TFMR_FSOS, SSC_FSOS_NEGATIVE) |
- SSC_BF(TFMR_FSLEN, bits - 1) |
- SSC_BF(TFMR_DATNB, channels - 1) | SSC_BIT(TFMR_MSBF) |
- SSC_BF(TFMR_DATLEN, bits - 1));
- break;
-
-
- case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBM_CFM:
- /*
- * I2S format, CODEC supplies BCLK and LRC clock.
- *
- * The SSC transmit clock is obtained from the BCLK signal
- * on the TK line, and the SSC receive clock is generated from
- * the transmit clock.
- *
- * For single channel data, one sample is transferred on the
- * falling edge of the LRC clock. For two channel data, one
- * sample is transferred on both edges of the LRC clock.
- */
- pr_debug("at32-ssc: SSC mode is I2S BCLK / FRAME slave\n");
- start_event = ((channels == 1) ?
- SSC_START_FALLING_RF : SSC_START_EDGE_RF);
-
- rcmr = (SSC_BF(RCMR_STTDLY, START_DELAY) |
- SSC_BF(RCMR_START, start_event) |
- SSC_BF(RCMR_CKI, SSC_CKI_RISING) |
- SSC_BF(RCMR_CKO, SSC_CKO_NONE) |
- SSC_BF(RCMR_CKS, SSC_CKS_CLOCK));
-
- rfmr = (SSC_BF(RFMR_FSEDGE, SSC_FSEDGE_POSITIVE) |
- SSC_BF(RFMR_FSOS, SSC_FSOS_NONE) |
- SSC_BIT(RFMR_MSBF) | SSC_BF(RFMR_DATLEN, bits - 1));
-
- tcmr = (SSC_BF(TCMR_STTDLY, START_DELAY) |
- SSC_BF(TCMR_START, start_event) |
- SSC_BF(TCMR_CKI, SSC_CKI_FALLING) |
- SSC_BF(TCMR_CKO, SSC_CKO_NONE) |
- SSC_BF(TCMR_CKS, SSC_CKS_PIN));
-
- tfmr = (SSC_BF(TFMR_FSEDGE, SSC_FSEDGE_POSITIVE) |
- SSC_BF(TFMR_FSOS, SSC_FSOS_NONE) |
- SSC_BIT(TFMR_MSBF) | SSC_BF(TFMR_DATLEN, bits - 1));
- break;
-
-
- case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_CBS_CFS:
- /*
- * DSP/PCM Mode A format, SSC provides BCLK and LRC clocks.
- *
- * The SSC transmit and receive clocks are generated from the
- * MCK divider, and the BCLK signal is output on the SSC TK line
- */
- pr_debug("at32-ssc: SSC mode is DSP A BCLK / FRAME master\n");
- rcmr = (SSC_BF(RCMR_PERIOD, ssc_p->rcmr_period) |
- SSC_BF(RCMR_STTDLY, 1) |
- SSC_BF(RCMR_START, SSC_START_RISING_RF) |
- SSC_BF(RCMR_CKI, SSC_CKI_RISING) |
- SSC_BF(RCMR_CKO, SSC_CKO_NONE) |
- SSC_BF(RCMR_CKS, SSC_CKS_DIV));
-
- rfmr = (SSC_BF(RFMR_FSEDGE, SSC_FSEDGE_POSITIVE) |
- SSC_BF(RFMR_FSOS, SSC_FSOS_POSITIVE) |
- SSC_BF(RFMR_DATNB, channels - 1) |
- SSC_BIT(RFMR_MSBF) | SSC_BF(RFMR_DATLEN, bits - 1));
-
- tcmr = (SSC_BF(TCMR_PERIOD, ssc_p->tcmr_period) |
- SSC_BF(TCMR_STTDLY, 1) |
- SSC_BF(TCMR_START, SSC_START_RISING_RF) |
- SSC_BF(TCMR_CKI, SSC_CKI_RISING) |
- SSC_BF(TCMR_CKO, SSC_CKO_CONTINUOUS) |
- SSC_BF(TCMR_CKS, SSC_CKS_DIV));
-
- tfmr = (SSC_BF(TFMR_FSEDGE, SSC_FSEDGE_POSITIVE) |
- SSC_BF(TFMR_FSOS, SSC_FSOS_POSITIVE) |
- SSC_BF(TFMR_DATNB, channels - 1) |
- SSC_BIT(TFMR_MSBF) | SSC_BF(TFMR_DATLEN, bits - 1));
- break;
-
-
- case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_CBM_CFM:
- default:
- pr_warning("at32-ssc: unsupported DAI format 0x%x\n",
- ssc_p->daifmt);
- return -EINVAL;
- break;
- }
- pr_debug("at32-ssc: RCMR=%08x RFMR=%08x TCMR=%08x TFMR=%08x\n",
- rcmr, rfmr, tcmr, tfmr);
-
-
- if (!ssc_p->initialized) {
- /* enable peripheral clock */
- pr_debug("at32-ssc: Starting clock\n");
- clk_enable(ssc_p->ssc->clk);
-
- /* Reset the SSC and its PDC registers */
- ssc_writel(ssc_p->ssc->regs, CR, SSC_BIT(CR_SWRST));
-
- ssc_writel(ssc_p->ssc->regs, PDC_RPR, 0);
- ssc_writel(ssc_p->ssc->regs, PDC_RCR, 0);
- ssc_writel(ssc_p->ssc->regs, PDC_RNPR, 0);
- ssc_writel(ssc_p->ssc->regs, PDC_RNCR, 0);
-
- ssc_writel(ssc_p->ssc->regs, PDC_TPR, 0);
- ssc_writel(ssc_p->ssc->regs, PDC_TCR, 0);
- ssc_writel(ssc_p->ssc->regs, PDC_TNPR, 0);
- ssc_writel(ssc_p->ssc->regs, PDC_TNCR, 0);
-
- ret = request_irq(ssc_p->ssc->irq, at32_ssc_interrupt, 0,
- ssc_p->name, ssc_p);
- if (ret < 0) {
- pr_warning("at32-ssc: request irq failed (%d)\n", ret);
- pr_debug("at32-ssc: Stopping clock\n");
- clk_disable(ssc_p->ssc->clk);
- return ret;
- }
-
- ssc_p->initialized = 1;
- }
-
- /* Set SSC clock mode register */
- ssc_writel(ssc_p->ssc->regs, CMR, ssc_p->cmr_div);
-
- /* set receive clock mode and format */
- ssc_writel(ssc_p->ssc->regs, RCMR, rcmr);
- ssc_writel(ssc_p->ssc->regs, RFMR, rfmr);
-
- /* set transmit clock mode and format */
- ssc_writel(ssc_p->ssc->regs, TCMR, tcmr);
- ssc_writel(ssc_p->ssc->regs, TFMR, tfmr);
-
- pr_debug("at32-ssc: SSC initialized\n");
- return 0;
-}
-
-
-
-static int at32_ssc_prepare(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct at32_ssc_info *ssc_p = &ssc_info[rtd->dai->cpu_dai->id];
- struct at32_pcm_dma_params *dma_params;
-
- dma_params = ssc_p->dma_params[substream->stream];
-
- ssc_writel(dma_params->ssc->regs, CR, dma_params->mask->ssc_enable);
-
- return 0;
-}
-
-
-
-#ifdef CONFIG_PM
-static int at32_ssc_suspend(struct platform_device *pdev,
- struct snd_soc_dai *cpu_dai)
-{
- struct at32_ssc_info *ssc_p;
-
- if (!cpu_dai->active)
- return 0;
-
- ssc_p = &ssc_info[cpu_dai->id];
-
- /* Save the status register before disabling transmit and receive */
- ssc_p->ssc_state.ssc_sr = ssc_readl(ssc_p->ssc->regs, SR);
- ssc_writel(ssc_p->ssc->regs, CR, SSC_BIT(CR_TXDIS) | SSC_BIT(CR_RXDIS));
-
- /* Save the current interrupt mask, then disable unmasked interrupts */
- ssc_p->ssc_state.ssc_imr = ssc_readl(ssc_p->ssc->regs, IMR);
- ssc_writel(ssc_p->ssc->regs, IDR, ssc_p->ssc_state.ssc_imr);
-
- ssc_p->ssc_state.ssc_cmr = ssc_readl(ssc_p->ssc->regs, CMR);
- ssc_p->ssc_state.ssc_rcmr = ssc_readl(ssc_p->ssc->regs, RCMR);
- ssc_p->ssc_state.ssc_rfmr = ssc_readl(ssc_p->ssc->regs, RFMR);
- ssc_p->ssc_state.ssc_tcmr = ssc_readl(ssc_p->ssc->regs, TCMR);
- ssc_p->ssc_state.ssc_tfmr = ssc_readl(ssc_p->ssc->regs, TFMR);
-
- return 0;
-}
-
-
-
-static int at32_ssc_resume(struct platform_device *pdev,
- struct snd_soc_dai *cpu_dai)
-{
- struct at32_ssc_info *ssc_p;
- u32 cr;
-
- if (!cpu_dai->active)
- return 0;
-
- ssc_p = &ssc_info[cpu_dai->id];
-
- /* restore SSC register settings */
- ssc_writel(ssc_p->ssc->regs, TFMR, ssc_p->ssc_state.ssc_tfmr);
- ssc_writel(ssc_p->ssc->regs, TCMR, ssc_p->ssc_state.ssc_tcmr);
- ssc_writel(ssc_p->ssc->regs, RFMR, ssc_p->ssc_state.ssc_rfmr);
- ssc_writel(ssc_p->ssc->regs, RCMR, ssc_p->ssc_state.ssc_rcmr);
- ssc_writel(ssc_p->ssc->regs, CMR, ssc_p->ssc_state.ssc_cmr);
-
- /* re-enable interrupts */
- ssc_writel(ssc_p->ssc->regs, IER, ssc_p->ssc_state.ssc_imr);
-
- /* Re-enable recieve and transmit as appropriate */
- cr = 0;
- cr |=
- (ssc_p->ssc_state.ssc_sr & SSC_BIT(SR_RXEN)) ? SSC_BIT(CR_RXEN) : 0;
- cr |=
- (ssc_p->ssc_state.ssc_sr & SSC_BIT(SR_TXEN)) ? SSC_BIT(CR_TXEN) : 0;
- ssc_writel(ssc_p->ssc->regs, CR, cr);
-
- return 0;
-}
-#else /* CONFIG_PM */
-# define at32_ssc_suspend NULL
-# define at32_ssc_resume NULL
-#endif /* CONFIG_PM */
-
-
-#define AT32_SSC_RATES \
- (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_16000 | \
- SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
- SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
-
-
-#define AT32_SSC_FORMATS \
- (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16 | \
- SNDRV_PCM_FMTBIT_S24 | SNDRV_PCM_FMTBIT_S32)
-
-
-struct snd_soc_dai at32_ssc_dai[NUM_SSC_DEVICES] = {
- {
- .name = "at32-ssc0",
- .id = 0,
- .type = SND_SOC_DAI_PCM,
- .suspend = at32_ssc_suspend,
- .resume = at32_ssc_resume,
- .playback = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = AT32_SSC_RATES,
- .formats = AT32_SSC_FORMATS,
- },
- .capture = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = AT32_SSC_RATES,
- .formats = AT32_SSC_FORMATS,
- },
- .ops = {
- .startup = at32_ssc_startup,
- .shutdown = at32_ssc_shutdown,
- .prepare = at32_ssc_prepare,
- .hw_params = at32_ssc_hw_params,
- },
- .dai_ops = {
- .set_sysclk = at32_ssc_set_dai_sysclk,
- .set_fmt = at32_ssc_set_dai_fmt,
- .set_clkdiv = at32_ssc_set_dai_clkdiv,
- },
- .private_data = &ssc_info[0],
- },
- {
- .name = "at32-ssc1",
- .id = 1,
- .type = SND_SOC_DAI_PCM,
- .suspend = at32_ssc_suspend,
- .resume = at32_ssc_resume,
- .playback = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = AT32_SSC_RATES,
- .formats = AT32_SSC_FORMATS,
- },
- .capture = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = AT32_SSC_RATES,
- .formats = AT32_SSC_FORMATS,
- },
- .ops = {
- .startup = at32_ssc_startup,
- .shutdown = at32_ssc_shutdown,
- .prepare = at32_ssc_prepare,
- .hw_params = at32_ssc_hw_params,
- },
- .dai_ops = {
- .set_sysclk = at32_ssc_set_dai_sysclk,
- .set_fmt = at32_ssc_set_dai_fmt,
- .set_clkdiv = at32_ssc_set_dai_clkdiv,
- },
- .private_data = &ssc_info[1],
- },
- {
- .name = "at32-ssc2",
- .id = 2,
- .type = SND_SOC_DAI_PCM,
- .suspend = at32_ssc_suspend,
- .resume = at32_ssc_resume,
- .playback = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = AT32_SSC_RATES,
- .formats = AT32_SSC_FORMATS,
- },
- .capture = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = AT32_SSC_RATES,
- .formats = AT32_SSC_FORMATS,
- },
- .ops = {
- .startup = at32_ssc_startup,
- .shutdown = at32_ssc_shutdown,
- .prepare = at32_ssc_prepare,
- .hw_params = at32_ssc_hw_params,
- },
- .dai_ops = {
- .set_sysclk = at32_ssc_set_dai_sysclk,
- .set_fmt = at32_ssc_set_dai_fmt,
- .set_clkdiv = at32_ssc_set_dai_clkdiv,
- },
- .private_data = &ssc_info[2],
- },
-};
-EXPORT_SYMBOL_GPL(at32_ssc_dai);
-
-
-MODULE_AUTHOR("Geoffrey Wossum <gwossum at acm.org>");
-MODULE_DESCRIPTION("AT32 SSC ASoC Interface");
-MODULE_LICENSE("GPL");
diff --git a/sound/soc/at32/at32-ssc.h b/sound/soc/at32/at32-ssc.h
deleted file mode 100644
index 3c052db..0000000
--- a/sound/soc/at32/at32-ssc.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/* sound/soc/at32/at32-ssc.h
- * ASoC SSC interface for Atmel AT32 SoC
- *
- * Copyright (C) 2008 Long Range Systems
- * Geoffrey Wossum <gwossum at acm.org>
- *
- * 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
- * published by the Free Software Foundation.
- */
-
-#ifndef __SOUND_SOC_AT32_AT32_SSC_H
-#define __SOUND_SOC_AT32_AT32_SSC_H __FILE__
-
-#include <linux/types.h>
-#include <linux/atmel-ssc.h>
-
-#include "at32-pcm.h"
-
-
-
-struct at32_ssc_state {
- u32 ssc_cmr;
- u32 ssc_rcmr;
- u32 ssc_rfmr;
- u32 ssc_tcmr;
- u32 ssc_tfmr;
- u32 ssc_sr;
- u32 ssc_imr;
-};
-
-
-
-struct at32_ssc_info {
- char *name;
- struct ssc_device *ssc;
- spinlock_t lock; /* lock for dir_mask */
- unsigned short dir_mask; /* 0=unused, 1=playback, 2=capture */
- unsigned short initialized; /* true if SSC has been initialized */
- unsigned short daifmt;
- unsigned short cmr_div;
- unsigned short tcmr_period;
- unsigned short rcmr_period;
- struct at32_pcm_dma_params *dma_params[2];
- struct at32_ssc_state ssc_state;
-};
-
-
-/* SSC divider ids */
-#define AT32_SSC_CMR_DIV 0 /* MCK divider for BCLK */
-#define AT32_SSC_TCMR_PERIOD 1 /* BCLK divider for transmit FS */
-#define AT32_SSC_RCMR_PERIOD 2 /* BCLK divider for receive FS */
-
-
-extern struct snd_soc_dai at32_ssc_dai[];
-
-
-
-#endif /* __SOUND_SOC_AT32_AT32_SSC_H */
diff --git a/sound/soc/at32/playpaq_wm8510.c b/sound/soc/at32/playpaq_wm8510.c
deleted file mode 100644
index 7e6560b..0000000
--- a/sound/soc/at32/playpaq_wm8510.c
+++ /dev/null
@@ -1,523 +0,0 @@
-/* sound/soc/at32/playpaq_wm8510.c
- * ASoC machine driver for PlayPaq using WM8510 codec
- *
- * Copyright (C) 2008 Long Range Systems
- * Geoffrey Wossum <gwossum at acm.org>
- *
- * 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
- * published by the Free Software Foundation.
- *
- * This code is largely inspired by sound/soc/at91/eti_b1_wm8731.c
- *
- * NOTE: If you don't have the AT32 enhanced portmux configured (which
- * isn't currently in the mainline or Atmel patched kernel), you will
- * need to set the MCLK pin (PA30) to peripheral A in your board initialization
- * code. Something like:
- * at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0);
- *
- */
-
-/* #define DEBUG */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/version.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/clk.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/platform_device.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-#include <sound/soc-dapm.h>
-
-#include <mach/at32ap700x.h>
-#include <mach/portmux.h>
-
-#include "../codecs/wm8510.h"
-#include "at32-pcm.h"
-#include "at32-ssc.h"
-
-
-/*-------------------------------------------------------------------------*\
- * constants
-\*-------------------------------------------------------------------------*/
-#define MCLK_PIN GPIO_PIN_PA(30)
-#define MCLK_PERIPH GPIO_PERIPH_A
-
-
-/*-------------------------------------------------------------------------*\
- * data types
-\*-------------------------------------------------------------------------*/
-/* SSC clocking data */
-struct ssc_clock_data {
- /* CMR div */
- unsigned int cmr_div;
-
- /* Frame period (as needed by xCMR.PERIOD) */
- unsigned int period;
-
- /* The SSC clock rate these settings where calculated for */
- unsigned long ssc_rate;
-};
-
-
-/*-------------------------------------------------------------------------*\
- * module data
-\*-------------------------------------------------------------------------*/
-static struct clk *_gclk0;
-static struct clk *_pll0;
-
-#define CODEC_CLK (_gclk0)
-
-
-/*-------------------------------------------------------------------------*\
- * Sound SOC operations
-\*-------------------------------------------------------------------------*/
-#if defined CONFIG_SND_AT32_SOC_PLAYPAQ_SLAVE
-static struct ssc_clock_data playpaq_wm8510_calc_ssc_clock(
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *cpu_dai)
-{
- struct at32_ssc_info *ssc_p = cpu_dai->private_data;
- struct ssc_device *ssc = ssc_p->ssc;
- struct ssc_clock_data cd;
- unsigned int rate, width_bits, channels;
- unsigned int bitrate, ssc_div;
- unsigned actual_rate;
-
-
- /*
- * Figure out required bitrate
- */
- rate = params_rate(params);
- channels = params_channels(params);
- width_bits = snd_pcm_format_physical_width(params_format(params));
- bitrate = rate * width_bits * channels;
-
-
- /*
- * Figure out required SSC divider and period for required bitrate
- */
- cd.ssc_rate = clk_get_rate(ssc->clk);
- ssc_div = cd.ssc_rate / bitrate;
- cd.cmr_div = ssc_div / 2;
- if (ssc_div & 1) {
- /* round cmr_div up */
- cd.cmr_div++;
- }
- cd.period = width_bits - 1;
-
-
- /*
- * Find actual rate, compare to requested rate
- */
- actual_rate = (cd.ssc_rate / (cd.cmr_div * 2)) / (2 * (cd.period + 1));
- pr_debug("playpaq_wm8510: Request rate = %d, actual rate = %d\n",
- rate, actual_rate);
-
-
- return cd;
-}
-#endif /* CONFIG_SND_AT32_SOC_PLAYPAQ_SLAVE */
-
-
-
-static int playpaq_wm8510_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
- struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
- struct at32_ssc_info *ssc_p = cpu_dai->private_data;
- struct ssc_device *ssc = ssc_p->ssc;
- unsigned int pll_out = 0, bclk = 0, mclk_div = 0;
- int ret;
-
-
- /* Due to difficulties with getting the correct clocks from the AT32's
- * PLL0, we're going to let the CODEC be in charge of all the clocks
- */
-#if !defined CONFIG_SND_AT32_SOC_PLAYPAQ_SLAVE
- const unsigned int fmt = (SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBM_CFM);
-#else
- struct ssc_clock_data cd;
- const unsigned int fmt = (SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBS_CFS);
-#endif
-
- if (ssc == NULL) {
- pr_warning("playpaq_wm8510_hw_params: ssc is NULL!\n");
- return -EINVAL;
- }
-
-
- /*
- * Figure out PLL and BCLK dividers for WM8510
- */
- switch (params_rate(params)) {
- case 48000:
- pll_out = 12288000;
- mclk_div = WM8510_MCLKDIV_1;
- bclk = WM8510_BCLKDIV_8;
- break;
-
- case 44100:
- pll_out = 11289600;
- mclk_div = WM8510_MCLKDIV_1;
- bclk = WM8510_BCLKDIV_8;
- break;
-
- case 22050:
- pll_out = 11289600;
- mclk_div = WM8510_MCLKDIV_2;
- bclk = WM8510_BCLKDIV_8;
- break;
-
- case 16000:
- pll_out = 12288000;
- mclk_div = WM8510_MCLKDIV_3;
- bclk = WM8510_BCLKDIV_8;
- break;
-
- case 11025:
- pll_out = 11289600;
- mclk_div = WM8510_MCLKDIV_4;
- bclk = WM8510_BCLKDIV_8;
- break;
-
- case 8000:
- pll_out = 12288000;
- mclk_div = WM8510_MCLKDIV_6;
- bclk = WM8510_BCLKDIV_8;
- break;
-
- default:
- pr_warning("playpaq_wm8510: Unsupported sample rate %d\n",
- params_rate(params));
- return -EINVAL;
- }
-
-
- /*
- * set CPU and CODEC DAI configuration
- */
- ret = snd_soc_dai_set_fmt(codec_dai, fmt);
- if (ret < 0) {
- pr_warning("playpaq_wm8510: "
- "Failed to set CODEC DAI format (%d)\n",
- ret);
- return ret;
- }
- ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
- if (ret < 0) {
- pr_warning("playpaq_wm8510: "
- "Failed to set CPU DAI format (%d)\n",
- ret);
- return ret;
- }
-
-
- /*
- * Set CPU clock configuration
- */
-#if defined CONFIG_SND_AT32_SOC_PLAYPAQ_SLAVE
- cd = playpaq_wm8510_calc_ssc_clock(params, cpu_dai);
- pr_debug("playpaq_wm8510: cmr_div = %d, period = %d\n",
- cd.cmr_div, cd.period);
- ret = snd_soc_dai_set_clkdiv(cpu_dai, AT32_SSC_CMR_DIV, cd.cmr_div);
- if (ret < 0) {
- pr_warning("playpaq_wm8510: Failed to set CPU CMR_DIV (%d)\n",
- ret);
- return ret;
- }
- ret = snd_soc_dai_set_clkdiv(cpu_dai, AT32_SSC_TCMR_PERIOD,
- cd.period);
- if (ret < 0) {
- pr_warning("playpaq_wm8510: "
- "Failed to set CPU transmit period (%d)\n",
- ret);
- return ret;
- }
-#endif /* CONFIG_SND_AT32_SOC_PLAYPAQ_SLAVE */
-
-
- /*
- * Set CODEC clock configuration
- */
- pr_debug("playpaq_wm8510: "
- "pll_in = %ld, pll_out = %u, bclk = %x, mclk = %x\n",
- clk_get_rate(CODEC_CLK), pll_out, bclk, mclk_div);
-
-
-#if !defined CONFIG_SND_AT32_SOC_PLAYPAQ_SLAVE
- ret = snd_soc_dai_set_clkdiv(codec_dai, WM8510_BCLKDIV, bclk);
- if (ret < 0) {
- pr_warning
- ("playpaq_wm8510: Failed to set CODEC DAI BCLKDIV (%d)\n",
- ret);
- return ret;
- }
-#endif /* CONFIG_SND_AT32_SOC_PLAYPAQ_SLAVE */
-
-
- ret = snd_soc_dai_set_pll(codec_dai, 0,
- clk_get_rate(CODEC_CLK), pll_out);
- if (ret < 0) {
- pr_warning("playpaq_wm8510: Failed to set CODEC DAI PLL (%d)\n",
- ret);
- return ret;
- }
-
-
- ret = snd_soc_dai_set_clkdiv(codec_dai, WM8510_MCLKDIV, mclk_div);
- if (ret < 0) {
- pr_warning("playpaq_wm8510: Failed to set CODEC MCLKDIV (%d)\n",
- ret);
- return ret;
- }
-
-
- return 0;
-}
-
-
-
-static struct snd_soc_ops playpaq_wm8510_ops = {
- .hw_params = playpaq_wm8510_hw_params,
-};
-
-
-
-static const struct snd_soc_dapm_widget playpaq_dapm_widgets[] = {
- SND_SOC_DAPM_MIC("Int Mic", NULL),
- SND_SOC_DAPM_SPK("Ext Spk", NULL),
-};
-
-
-
-static const char *intercon[][3] = {
- /* speaker connected to SPKOUT */
- {"Ext Spk", NULL, "SPKOUTP"},
- {"Ext Spk", NULL, "SPKOUTN"},
-
- {"Mic Bias", NULL, "Int Mic"},
- {"MICN", NULL, "Mic Bias"},
- {"MICP", NULL, "Mic Bias"},
-
- /* Terminator */
- {NULL, NULL, NULL},
-};
-
-
-
-static int playpaq_wm8510_init(struct snd_soc_codec *codec)
-{
- int i;
-
- /*
- * Add DAPM widgets
- */
- for (i = 0; i < ARRAY_SIZE(playpaq_dapm_widgets); i++)
- snd_soc_dapm_new_control(codec, &playpaq_dapm_widgets[i]);
-
-
-
- /*
- * Setup audio path interconnects
- */
- for (i = 0; intercon[i][0] != NULL; i++) {
- snd_soc_dapm_connect_input(codec,
- intercon[i][0],
- intercon[i][1], intercon[i][2]);
- }
-
-
- /* always connected pins */
- snd_soc_dapm_enable_pin(codec, "Int Mic");
- snd_soc_dapm_enable_pin(codec, "Ext Spk");
- snd_soc_dapm_sync(codec);
-
-
-
- /* Make CSB show PLL rate */
- snd_soc_dai_set_clkdiv(codec->dai, WM8510_OPCLKDIV,
- WM8510_OPCLKDIV_1 | 4);
-
- return 0;
-}
-
-
-
-static struct snd_soc_dai_link playpaq_wm8510_dai = {
- .name = "WM8510",
- .stream_name = "WM8510 PCM",
- .cpu_dai = &at32_ssc_dai[0],
- .codec_dai = &wm8510_dai,
- .init = playpaq_wm8510_init,
- .ops = &playpaq_wm8510_ops,
-};
-
-
-
-static struct snd_soc_machine snd_soc_machine_playpaq = {
- .name = "LRS_PlayPaq_WM8510",
- .dai_link = &playpaq_wm8510_dai,
- .num_links = 1,
-};
-
-
-
-static struct wm8510_setup_data playpaq_wm8510_setup = {
- .i2c_bus = 0,
- .i2c_address = 0x1a,
-};
-
-
-
-static struct snd_soc_device playpaq_wm8510_snd_devdata = {
- .machine = &snd_soc_machine_playpaq,
- .platform = &at32_soc_platform,
- .codec_dev = &soc_codec_dev_wm8510,
- .codec_data = &playpaq_wm8510_setup,
-};
-
-static struct platform_device *playpaq_snd_device;
-
-
-static int __init playpaq_asoc_init(void)
-{
- int ret = 0;
- struct at32_ssc_info *ssc_p = playpaq_wm8510_dai.cpu_dai->private_data;
- struct ssc_device *ssc = NULL;
-
-
- /*
- * Request SSC device
- */
- ssc = ssc_request(0);
- if (IS_ERR(ssc)) {
- ret = PTR_ERR(ssc);
- ssc = NULL;
- goto err_ssc;
- }
- ssc_p->ssc = ssc;
-
-
- /*
- * Configure MCLK for WM8510
- */
- _gclk0 = clk_get(NULL, "gclk0");
- if (IS_ERR(_gclk0)) {
- _gclk0 = NULL;
- goto err_gclk0;
- }
- _pll0 = clk_get(NULL, "pll0");
- if (IS_ERR(_pll0)) {
- _pll0 = NULL;
- goto err_pll0;
- }
- if (clk_set_parent(_gclk0, _pll0)) {
- pr_warning("snd-soc-playpaq: "
- "Failed to set PLL0 as parent for DAC clock\n");
- goto err_set_clk;
- }
- clk_set_rate(CODEC_CLK, 12000000);
- clk_enable(CODEC_CLK);
-
-#if defined CONFIG_AT32_ENHANCED_PORTMUX
- at32_select_periph(MCLK_PIN, MCLK_PERIPH, 0);
-#endif
-
-
- /*
- * Create and register platform device
- */
- playpaq_snd_device = platform_device_alloc("soc-audio", 0);
- if (playpaq_snd_device == NULL) {
- ret = -ENOMEM;
- goto err_device_alloc;
- }
-
- platform_set_drvdata(playpaq_snd_device, &playpaq_wm8510_snd_devdata);
- playpaq_wm8510_snd_devdata.dev = &playpaq_snd_device->dev;
-
- ret = platform_device_add(playpaq_snd_device);
- if (ret) {
- pr_warning("playpaq_wm8510: platform_device_add failed (%d)\n",
- ret);
- goto err_device_add;
- }
-
- return 0;
-
-
-err_device_add:
- if (playpaq_snd_device != NULL) {
- platform_device_put(playpaq_snd_device);
- playpaq_snd_device = NULL;
- }
-err_device_alloc:
-err_set_clk:
- if (_pll0 != NULL) {
- clk_put(_pll0);
- _pll0 = NULL;
- }
-err_pll0:
- if (_gclk0 != NULL) {
- clk_put(_gclk0);
- _gclk0 = NULL;
- }
-err_gclk0:
- if (ssc != NULL) {
- ssc_free(ssc);
- ssc = NULL;
- }
-err_ssc:
- return ret;
-}
-
-
-static void __exit playpaq_asoc_exit(void)
-{
- struct at32_ssc_info *ssc_p = playpaq_wm8510_dai.cpu_dai->private_data;
- struct ssc_device *ssc;
-
- if (ssc_p != NULL) {
- ssc = ssc_p->ssc;
- if (ssc != NULL)
- ssc_free(ssc);
- ssc_p->ssc = NULL;
- }
-
- if (_gclk0 != NULL) {
- clk_put(_gclk0);
- _gclk0 = NULL;
- }
- if (_pll0 != NULL) {
- clk_put(_pll0);
- _pll0 = NULL;
- }
-
-#if defined CONFIG_AT32_ENHANCED_PORTMUX
- at32_free_pin(MCLK_PIN);
-#endif
-
- platform_device_unregister(playpaq_snd_device);
- playpaq_snd_device = NULL;
-}
-
-module_init(playpaq_asoc_init);
-module_exit(playpaq_asoc_exit);
-
-MODULE_AUTHOR("Geoffrey Wossum <gwossum at acm.org>");
-MODULE_DESCRIPTION("ASoC machine driver for LRS PlayPaq");
-MODULE_LICENSE("GPL");
diff --git a/sound/soc/at91/Kconfig b/sound/soc/at91/Kconfig
deleted file mode 100644
index 85a8832..0000000
--- a/sound/soc/at91/Kconfig
+++ /dev/null
@@ -1,10 +0,0 @@
-config SND_AT91_SOC
- tristate "SoC Audio for the Atmel AT91 System-on-Chip"
- depends on ARCH_AT91
- help
- Say Y or M if you want to add support for codecs attached to
- the AT91 SSC interface. You will also need
- to select the audio interfaces to support below.
-
-config SND_AT91_SOC_SSC
- tristate
diff --git a/sound/soc/at91/Makefile b/sound/soc/at91/Makefile
deleted file mode 100644
index b817f11..0000000
--- a/sound/soc/at91/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-# AT91 Platform Support
-snd-soc-at91-objs := at91-pcm.o
-snd-soc-at91-ssc-objs := at91-ssc.o
-
-obj-$(CONFIG_SND_AT91_SOC) += snd-soc-at91.o
-obj-$(CONFIG_SND_AT91_SOC_SSC) += snd-soc-at91-ssc.o
diff --git a/sound/soc/at91/at91-pcm.c b/sound/soc/at91/at91-pcm.c
deleted file mode 100644
index 7ab48bd..0000000
--- a/sound/soc/at91/at91-pcm.c
+++ /dev/null
@@ -1,434 +0,0 @@
-/*
- * at91-pcm.c -- ALSA PCM interface for the Atmel AT91 SoC
- *
- * Author: Frank Mandarino <fmandarino at endrelia.com>
- * Endrelia Technologies Inc.
- * Created: Mar 3, 2006
- *
- * Based on pxa2xx-pcm.c by:
- *
- * Author: Nicolas Pitre
- * Created: Nov 30, 2004
- * Copyright: (C) 2004 MontaVista Software, Inc.
- *
- * 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
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/dma-mapping.h>
-#include <linux/atmel_pdc.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-
-#include <mach/hardware.h>
-#include <mach/at91_ssc.h>
-
-#include "at91-pcm.h"
-
-#if 0
-#define DBG(x...) printk(KERN_INFO "at91-pcm: " x)
-#else
-#define DBG(x...)
-#endif
-
-static const struct snd_pcm_hardware at91_pcm_hardware = {
- .info = SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_PAUSE,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,
- .period_bytes_min = 32,
- .period_bytes_max = 8192,
- .periods_min = 2,
- .periods_max = 1024,
- .buffer_bytes_max = 32 * 1024,
-};
-
-struct at91_runtime_data {
- struct at91_pcm_dma_params *params;
- dma_addr_t dma_buffer; /* physical address of dma buffer */
- dma_addr_t dma_buffer_end; /* first address beyond DMA buffer */
- size_t period_size;
- dma_addr_t period_ptr; /* physical address of next period */
- u32 pdc_xpr_save; /* PDC register save */
- u32 pdc_xcr_save;
- u32 pdc_xnpr_save;
- u32 pdc_xncr_save;
-};
-
-static void at91_pcm_dma_irq(u32 ssc_sr,
- struct snd_pcm_substream *substream)
-{
- struct at91_runtime_data *prtd = substream->runtime->private_data;
- struct at91_pcm_dma_params *params = prtd->params;
- static int count = 0;
-
- count++;
-
- if (ssc_sr & params->mask->ssc_endbuf) {
-
- printk(KERN_WARNING
- "at91-pcm: buffer %s on %s (SSC_SR=%#x, count=%d)\n",
- substream->stream == SNDRV_PCM_STREAM_PLAYBACK
- ? "underrun" : "overrun",
- params->name, ssc_sr, count);
-
- /* re-start the PDC */
- at91_ssc_write(params->ssc_base + ATMEL_PDC_PTCR, params->mask->pdc_disable);
-
- prtd->period_ptr += prtd->period_size;
- if (prtd->period_ptr >= prtd->dma_buffer_end) {
- prtd->period_ptr = prtd->dma_buffer;
- }
-
- at91_ssc_write(params->ssc_base + params->pdc->xpr, prtd->period_ptr);
- at91_ssc_write(params->ssc_base + params->pdc->xcr,
- prtd->period_size / params->pdc_xfer_size);
-
- at91_ssc_write(params->ssc_base + ATMEL_PDC_PTCR, params->mask->pdc_enable);
- }
-
- if (ssc_sr & params->mask->ssc_endx) {
-
- /* Load the PDC next pointer and counter registers */
- prtd->period_ptr += prtd->period_size;
- if (prtd->period_ptr >= prtd->dma_buffer_end) {
- prtd->period_ptr = prtd->dma_buffer;
- }
- at91_ssc_write(params->ssc_base + params->pdc->xnpr,
- prtd->period_ptr);
- at91_ssc_write(params->ssc_base + params->pdc->xncr,
- prtd->period_size / params->pdc_xfer_size);
- }
-
- snd_pcm_period_elapsed(substream);
-}
-
-static int at91_pcm_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct at91_runtime_data *prtd = runtime->private_data;
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
-
- /* this may get called several times by oss emulation
- * with different params */
-
- snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
- runtime->dma_bytes = params_buffer_bytes(params);
-
- prtd->params = rtd->dai->cpu_dai->dma_data;
- prtd->params->dma_intr_handler = at91_pcm_dma_irq;
-
- prtd->dma_buffer = runtime->dma_addr;
- prtd->dma_buffer_end = runtime->dma_addr + runtime->dma_bytes;
- prtd->period_size = params_period_bytes(params);
-
- DBG("hw_params: DMA for %s initialized (dma_bytes=%d, period_size=%d)\n",
- prtd->params->name, runtime->dma_bytes, prtd->period_size);
- return 0;
-}
-
-static int at91_pcm_hw_free(struct snd_pcm_substream *substream)
-{
- struct at91_runtime_data *prtd = substream->runtime->private_data;
- struct at91_pcm_dma_params *params = prtd->params;
-
- if (params != NULL) {
- at91_ssc_write(params->ssc_base + ATMEL_PDC_PTCR, params->mask->pdc_disable);
- prtd->params->dma_intr_handler = NULL;
- }
-
- return 0;
-}
-
-static int at91_pcm_prepare(struct snd_pcm_substream *substream)
-{
- struct at91_runtime_data *prtd = substream->runtime->private_data;
- struct at91_pcm_dma_params *params = prtd->params;
-
- at91_ssc_write(params->ssc_base + AT91_SSC_IDR,
- params->mask->ssc_endx | params->mask->ssc_endbuf);
-
- at91_ssc_write(params->ssc_base + ATMEL_PDC_PTCR, params->mask->pdc_disable);
- return 0;
-}
-
-static int at91_pcm_trigger(struct snd_pcm_substream *substream,
- int cmd)
-{
- struct at91_runtime_data *prtd = substream->runtime->private_data;
- struct at91_pcm_dma_params *params = prtd->params;
- int ret = 0;
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- prtd->period_ptr = prtd->dma_buffer;
-
- at91_ssc_write(params->ssc_base + params->pdc->xpr, prtd->period_ptr);
- at91_ssc_write(params->ssc_base + params->pdc->xcr,
- prtd->period_size / params->pdc_xfer_size);
-
- prtd->period_ptr += prtd->period_size;
- at91_ssc_write(params->ssc_base + params->pdc->xnpr, prtd->period_ptr);
- at91_ssc_write(params->ssc_base + params->pdc->xncr,
- prtd->period_size / params->pdc_xfer_size);
-
- DBG("trigger: period_ptr=%lx, xpr=%lx, xcr=%ld, xnpr=%lx, xncr=%ld\n",
- (unsigned long) prtd->period_ptr,
- at91_ssc_read(params->ssc_base + params->pdc->xpr),
- at91_ssc_read(params->ssc_base + params->pdc->xcr),
- at91_ssc_read(params->ssc_base + params->pdc->xnpr),
- at91_ssc_read(params->ssc_base + params->pdc->xncr));
-
- at91_ssc_write(params->ssc_base + AT91_SSC_IER,
- params->mask->ssc_endx | params->mask->ssc_endbuf);
-
- at91_ssc_write(params->ssc_base + ATMEL_PDC_PTCR,
- params->mask->pdc_enable);
-
- DBG("sr=%lx imr=%lx\n",
- at91_ssc_read(params->ssc_base + AT91_SSC_SR),
- at91_ssc_read(params->ssc_base + AT91_SSC_IMR));
- break;
-
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- at91_ssc_write(params->ssc_base + ATMEL_PDC_PTCR, params->mask->pdc_disable);
- break;
-
- case SNDRV_PCM_TRIGGER_RESUME:
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- at91_ssc_write(params->ssc_base + ATMEL_PDC_PTCR, params->mask->pdc_enable);
- break;
-
- default:
- ret = -EINVAL;
- }
-
- return ret;
-}
-
-static snd_pcm_uframes_t at91_pcm_pointer(
- struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct at91_runtime_data *prtd = runtime->private_data;
- struct at91_pcm_dma_params *params = prtd->params;
- dma_addr_t ptr;
- snd_pcm_uframes_t x;
-
- ptr = (dma_addr_t) at91_ssc_read(params->ssc_base + params->pdc->xpr);
- x = bytes_to_frames(runtime, ptr - prtd->dma_buffer);
-
- if (x == runtime->buffer_size)
- x = 0;
- return x;
-}
-
-static int at91_pcm_open(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct at91_runtime_data *prtd;
- int ret = 0;
-
- snd_soc_set_runtime_hwparams(substream, &at91_pcm_hardware);
-
- /* ensure that buffer size is a multiple of period size */
- ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
- if (ret < 0)
- goto out;
-
- prtd = kzalloc(sizeof(struct at91_runtime_data), GFP_KERNEL);
- if (prtd == NULL) {
- ret = -ENOMEM;
- goto out;
- }
- runtime->private_data = prtd;
-
- out:
- return ret;
-}
-
-static int at91_pcm_close(struct snd_pcm_substream *substream)
-{
- struct at91_runtime_data *prtd = substream->runtime->private_data;
-
- kfree(prtd);
- return 0;
-}
-
-static int at91_pcm_mmap(struct snd_pcm_substream *substream,
- struct vm_area_struct *vma)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
-
- return dma_mmap_writecombine(substream->pcm->card->dev, vma,
- runtime->dma_area,
- runtime->dma_addr,
- runtime->dma_bytes);
-}
-
-struct snd_pcm_ops at91_pcm_ops = {
- .open = at91_pcm_open,
- .close = at91_pcm_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = at91_pcm_hw_params,
- .hw_free = at91_pcm_hw_free,
- .prepare = at91_pcm_prepare,
- .trigger = at91_pcm_trigger,
- .pointer = at91_pcm_pointer,
- .mmap = at91_pcm_mmap,
-};
-
-static int at91_pcm_preallocate_dma_buffer(struct snd_pcm *pcm,
- int stream)
-{
- struct snd_pcm_substream *substream = pcm->streams[stream].substream;
- struct snd_dma_buffer *buf = &substream->dma_buffer;
- size_t size = at91_pcm_hardware.buffer_bytes_max;
-
- buf->dev.type = SNDRV_DMA_TYPE_DEV;
- buf->dev.dev = pcm->card->dev;
- buf->private_data = NULL;
- buf->area = dma_alloc_writecombine(pcm->card->dev, size,
- &buf->addr, GFP_KERNEL);
-
- DBG("preallocate_dma_buffer: area=%p, addr=%p, size=%d\n",
- (void *) buf->area,
- (void *) buf->addr,
- size);
-
- if (!buf->area)
- return -ENOMEM;
-
- buf->bytes = size;
- return 0;
-}
-
-static u64 at91_pcm_dmamask = 0xffffffff;
-
-static int at91_pcm_new(struct snd_card *card,
- struct snd_soc_dai *dai, struct snd_pcm *pcm)
-{
- int ret = 0;
-
- if (!card->dev->dma_mask)
- card->dev->dma_mask = &at91_pcm_dmamask;
- if (!card->dev->coherent_dma_mask)
- card->dev->coherent_dma_mask = 0xffffffff;
-
- if (dai->playback.channels_min) {
- ret = at91_pcm_preallocate_dma_buffer(pcm,
- SNDRV_PCM_STREAM_PLAYBACK);
- if (ret)
- goto out;
- }
-
- if (dai->capture.channels_min) {
- ret = at91_pcm_preallocate_dma_buffer(pcm,
- SNDRV_PCM_STREAM_CAPTURE);
- if (ret)
- goto out;
- }
- out:
- return ret;
-}
-
-static void at91_pcm_free_dma_buffers(struct snd_pcm *pcm)
-{
- struct snd_pcm_substream *substream;
- struct snd_dma_buffer *buf;
- int stream;
-
- for (stream = 0; stream < 2; stream++) {
- substream = pcm->streams[stream].substream;
- if (!substream)
- continue;
-
- buf = &substream->dma_buffer;
- if (!buf->area)
- continue;
-
- dma_free_writecombine(pcm->card->dev, buf->bytes,
- buf->area, buf->addr);
- buf->area = NULL;
- }
-}
-
-#ifdef CONFIG_PM
-static int at91_pcm_suspend(struct platform_device *pdev,
- struct snd_soc_dai *dai)
-{
- struct snd_pcm_runtime *runtime = dai->runtime;
- struct at91_runtime_data *prtd;
- struct at91_pcm_dma_params *params;
-
- if (!runtime)
- return 0;
-
- prtd = runtime->private_data;
- params = prtd->params;
-
- /* disable the PDC and save the PDC registers */
-
- at91_ssc_write(params->ssc_base + ATMEL_PDC_PTCR, params->mask->pdc_disable);
-
- prtd->pdc_xpr_save = at91_ssc_read(params->ssc_base + params->pdc->xpr);
- prtd->pdc_xcr_save = at91_ssc_read(params->ssc_base + params->pdc->xcr);
- prtd->pdc_xnpr_save = at91_ssc_read(params->ssc_base + params->pdc->xnpr);
- prtd->pdc_xncr_save = at91_ssc_read(params->ssc_base + params->pdc->xncr);
-
- return 0;
-}
-
-static int at91_pcm_resume(struct platform_device *pdev,
- struct snd_soc_dai *dai)
-{
- struct snd_pcm_runtime *runtime = dai->runtime;
- struct at91_runtime_data *prtd;
- struct at91_pcm_dma_params *params;
-
- if (!runtime)
- return 0;
-
- prtd = runtime->private_data;
- params = prtd->params;
-
- /* restore the PDC registers and enable the PDC */
- at91_ssc_write(params->ssc_base + params->pdc->xpr, prtd->pdc_xpr_save);
- at91_ssc_write(params->ssc_base + params->pdc->xcr, prtd->pdc_xcr_save);
- at91_ssc_write(params->ssc_base + params->pdc->xnpr, prtd->pdc_xnpr_save);
- at91_ssc_write(params->ssc_base + params->pdc->xncr, prtd->pdc_xncr_save);
-
- at91_ssc_write(params->ssc_base + ATMEL_PDC_PTCR, params->mask->pdc_enable);
- return 0;
-}
-#else
-#define at91_pcm_suspend NULL
-#define at91_pcm_resume NULL
-#endif
-
-struct snd_soc_platform at91_soc_platform = {
- .name = "at91-audio",
- .pcm_ops = &at91_pcm_ops,
- .pcm_new = at91_pcm_new,
- .pcm_free = at91_pcm_free_dma_buffers,
- .suspend = at91_pcm_suspend,
- .resume = at91_pcm_resume,
-};
-
-EXPORT_SYMBOL_GPL(at91_soc_platform);
-
-MODULE_AUTHOR("Frank Mandarino <fmandarino at endrelia.com>");
-MODULE_DESCRIPTION("Atmel AT91 PCM module");
-MODULE_LICENSE("GPL");
diff --git a/sound/soc/at91/at91-pcm.h b/sound/soc/at91/at91-pcm.h
deleted file mode 100644
index e5aada2..0000000
--- a/sound/soc/at91/at91-pcm.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * at91-pcm.h - ALSA PCM interface for the Atmel AT91 SoC
- *
- * Author: Frank Mandarino <fmandarino at endrelia.com>
- * Endrelia Technologies Inc.
- * Created: Mar 3, 2006
- *
- * Based on pxa2xx-pcm.h by:
- *
- * Author: Nicolas Pitre
- * Created: Nov 30, 2004
- * Copyright: MontaVista Software, Inc.
- *
- * 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
- * published by the Free Software Foundation.
- */
-
-#ifndef _AT91_PCM_H
-#define _AT91_PCM_H
-
-#include <mach/hardware.h>
-
-struct at91_ssc_periph {
- void __iomem *base;
- u32 pid;
-};
-
-/*
- * Registers and status bits that are required by the PCM driver.
- */
-struct at91_pdc_regs {
- unsigned int xpr; /* PDC recv/trans pointer */
- unsigned int xcr; /* PDC recv/trans counter */
- unsigned int xnpr; /* PDC next recv/trans pointer */
- unsigned int xncr; /* PDC next recv/trans counter */
- unsigned int ptcr; /* PDC transfer control */
-};
-
-struct at91_ssc_mask {
- u32 ssc_enable; /* SSC recv/trans enable */
- u32 ssc_disable; /* SSC recv/trans disable */
- u32 ssc_endx; /* SSC ENDTX or ENDRX */
- u32 ssc_endbuf; /* SSC TXBUFE or RXBUFF */
- u32 pdc_enable; /* PDC recv/trans enable */
- u32 pdc_disable; /* PDC recv/trans disable */
-};
-
-/*
- * This structure, shared between the PCM driver and the interface,
- * contains all information required by the PCM driver to perform the
- * PDC DMA operation. All fields except dma_intr_handler() are initialized
- * by the interface. The dms_intr_handler() pointer is set by the PCM
- * driver and called by the interface SSC interrupt handler if it is
- * non-NULL.
- */
-struct at91_pcm_dma_params {
- char *name; /* stream identifier */
- int pdc_xfer_size; /* PDC counter increment in bytes */
- void __iomem *ssc_base; /* SSC base address */
- struct at91_pdc_regs *pdc; /* PDC receive or transmit registers */
- struct at91_ssc_mask *mask;/* SSC & PDC status bits */
- struct snd_pcm_substream *substream;
- void (*dma_intr_handler)(u32, struct snd_pcm_substream *);
-};
-
-extern struct snd_soc_platform at91_soc_platform;
-
-#define at91_ssc_read(a) ((unsigned long) __raw_readl(a))
-#define at91_ssc_write(a,v) __raw_writel((v),(a))
-
-#endif /* _AT91_PCM_H */
diff --git a/sound/soc/at91/at91-ssc.c b/sound/soc/at91/at91-ssc.c
deleted file mode 100644
index a5b1a79..0000000
--- a/sound/soc/at91/at91-ssc.c
+++ /dev/null
@@ -1,791 +0,0 @@
-/*
- * at91-ssc.c -- ALSA SoC AT91 SSC Audio Layer Platform driver
- *
- * Author: Frank Mandarino <fmandarino at endrelia.com>
- * Endrelia Technologies Inc.
- *
- * Based on pxa2xx Platform drivers by
- * Liam Girdwood <liam.girdwood at wolfsonmicro.com>
- *
- * 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
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/device.h>
-#include <linux/delay.h>
-#include <linux/clk.h>
-#include <linux/atmel_pdc.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/initval.h>
-#include <sound/soc.h>
-
-#include <mach/hardware.h>
-#include <mach/at91_pmc.h>
-#include <mach/at91_ssc.h>
-
-#include "at91-pcm.h"
-#include "at91-ssc.h"
-
-#if 0
-#define DBG(x...) printk(KERN_DEBUG "at91-ssc:" x)
-#else
-#define DBG(x...)
-#endif
-
-#if defined(CONFIG_ARCH_AT91SAM9260) || defined(CONFIG_ARCH_AT91SAM9G20)
-#define NUM_SSC_DEVICES 1
-#else
-#define NUM_SSC_DEVICES 3
-#endif
-
-
-/*
- * SSC PDC registers required by the PCM DMA engine.
- */
-static struct at91_pdc_regs pdc_tx_reg = {
- .xpr = ATMEL_PDC_TPR,
- .xcr = ATMEL_PDC_TCR,
- .xnpr = ATMEL_PDC_TNPR,
- .xncr = ATMEL_PDC_TNCR,
-};
-
-static struct at91_pdc_regs pdc_rx_reg = {
- .xpr = ATMEL_PDC_RPR,
- .xcr = ATMEL_PDC_RCR,
- .xnpr = ATMEL_PDC_RNPR,
- .xncr = ATMEL_PDC_RNCR,
-};
-
-/*
- * SSC & PDC status bits for transmit and receive.
- */
-static struct at91_ssc_mask ssc_tx_mask = {
- .ssc_enable = AT91_SSC_TXEN,
- .ssc_disable = AT91_SSC_TXDIS,
- .ssc_endx = AT91_SSC_ENDTX,
- .ssc_endbuf = AT91_SSC_TXBUFE,
- .pdc_enable = ATMEL_PDC_TXTEN,
- .pdc_disable = ATMEL_PDC_TXTDIS,
-};
-
-static struct at91_ssc_mask ssc_rx_mask = {
- .ssc_enable = AT91_SSC_RXEN,
- .ssc_disable = AT91_SSC_RXDIS,
- .ssc_endx = AT91_SSC_ENDRX,
- .ssc_endbuf = AT91_SSC_RXBUFF,
- .pdc_enable = ATMEL_PDC_RXTEN,
- .pdc_disable = ATMEL_PDC_RXTDIS,
-};
-
-
-/*
- * DMA parameters.
- */
-static struct at91_pcm_dma_params ssc_dma_params[NUM_SSC_DEVICES][2] = {
- {{
- .name = "SSC0 PCM out",
- .pdc = &pdc_tx_reg,
- .mask = &ssc_tx_mask,
- },
- {
- .name = "SSC0 PCM in",
- .pdc = &pdc_rx_reg,
- .mask = &ssc_rx_mask,
- }},
-#if NUM_SSC_DEVICES == 3
- {{
- .name = "SSC1 PCM out",
- .pdc = &pdc_tx_reg,
- .mask = &ssc_tx_mask,
- },
- {
- .name = "SSC1 PCM in",
- .pdc = &pdc_rx_reg,
- .mask = &ssc_rx_mask,
- }},
- {{
- .name = "SSC2 PCM out",
- .pdc = &pdc_tx_reg,
- .mask = &ssc_tx_mask,
- },
- {
- .name = "SSC2 PCM in",
- .pdc = &pdc_rx_reg,
- .mask = &ssc_rx_mask,
- }},
-#endif
-};
-
-struct at91_ssc_state {
- u32 ssc_cmr;
- u32 ssc_rcmr;
- u32 ssc_rfmr;
- u32 ssc_tcmr;
- u32 ssc_tfmr;
- u32 ssc_sr;
- u32 ssc_imr;
-};
-
-static struct at91_ssc_info {
- char *name;
- struct at91_ssc_periph ssc;
- spinlock_t lock; /* lock for dir_mask */
- unsigned short dir_mask; /* 0=unused, 1=playback, 2=capture */
- unsigned short initialized; /* 1=SSC has been initialized */
- unsigned short daifmt;
- unsigned short cmr_div;
- unsigned short tcmr_period;
- unsigned short rcmr_period;
- struct at91_pcm_dma_params *dma_params[2];
- struct at91_ssc_state ssc_state;
-
-} ssc_info[NUM_SSC_DEVICES] = {
- {
- .name = "ssc0",
- .lock = __SPIN_LOCK_UNLOCKED(ssc_info[0].lock),
- .dir_mask = 0,
- .initialized = 0,
- },
-#if NUM_SSC_DEVICES == 3
- {
- .name = "ssc1",
- .lock = __SPIN_LOCK_UNLOCKED(ssc_info[1].lock),
- .dir_mask = 0,
- .initialized = 0,
- },
- {
- .name = "ssc2",
- .lock = __SPIN_LOCK_UNLOCKED(ssc_info[2].lock),
- .dir_mask = 0,
- .initialized = 0,
- },
-#endif
-};
-
-static unsigned int at91_ssc_sysclk;
-
-/*
- * SSC interrupt handler. Passes PDC interrupts to the DMA
- * interrupt handler in the PCM driver.
- */
-static irqreturn_t at91_ssc_interrupt(int irq, void *dev_id)
-{
- struct at91_ssc_info *ssc_p = dev_id;
- struct at91_pcm_dma_params *dma_params;
- u32 ssc_sr;
- int i;
-
- ssc_sr = at91_ssc_read(ssc_p->ssc.base + AT91_SSC_SR)
- & at91_ssc_read(ssc_p->ssc.base + AT91_SSC_IMR);
-
- /*
- * Loop through the substreams attached to this SSC. If
- * a DMA-related interrupt occurred on that substream, call
- * the DMA interrupt handler function, if one has been
- * registered in the dma_params structure by the PCM driver.
- */
- for (i = 0; i < ARRAY_SIZE(ssc_p->dma_params); i++) {
- dma_params = ssc_p->dma_params[i];
-
- if (dma_params != NULL && dma_params->dma_intr_handler != NULL &&
- (ssc_sr &
- (dma_params->mask->ssc_endx | dma_params->mask->ssc_endbuf)))
-
- dma_params->dma_intr_handler(ssc_sr, dma_params->substream);
- }
-
- return IRQ_HANDLED;
-}
-
-/*
- * Startup. Only that one substream allowed in each direction.
- */
-static int at91_ssc_startup(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct at91_ssc_info *ssc_p = &ssc_info[rtd->dai->cpu_dai->id];
- int dir_mask;
-
- DBG("ssc_startup: SSC_SR=0x%08lx\n",
- at91_ssc_read(ssc_p->ssc.base + AT91_SSC_SR));
- dir_mask = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0x1 : 0x2;
-
- spin_lock_irq(&ssc_p->lock);
- if (ssc_p->dir_mask & dir_mask) {
- spin_unlock_irq(&ssc_p->lock);
- return -EBUSY;
- }
- ssc_p->dir_mask |= dir_mask;
- spin_unlock_irq(&ssc_p->lock);
-
- return 0;
-}
-
-/*
- * Shutdown. Clear DMA parameters and shutdown the SSC if there
- * are no other substreams open.
- */
-static void at91_ssc_shutdown(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct at91_ssc_info *ssc_p = &ssc_info[rtd->dai->cpu_dai->id];
- struct at91_pcm_dma_params *dma_params;
- int dir, dir_mask;
-
- dir = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1;
- dma_params = ssc_p->dma_params[dir];
-
- if (dma_params != NULL) {
- at91_ssc_write(dma_params->ssc_base + AT91_SSC_CR,
- dma_params->mask->ssc_disable);
- DBG("%s disabled SSC_SR=0x%08lx\n", (dir ? "receive" : "transmit"),
- at91_ssc_read(ssc_p->ssc.base + AT91_SSC_SR));
-
- dma_params->ssc_base = NULL;
- dma_params->substream = NULL;
- ssc_p->dma_params[dir] = NULL;
- }
-
- dir_mask = 1 << dir;
-
- spin_lock_irq(&ssc_p->lock);
- ssc_p->dir_mask &= ~dir_mask;
- if (!ssc_p->dir_mask) {
- /* Shutdown the SSC clock. */
- DBG("Stopping pid %d clock\n", ssc_p->ssc.pid);
- at91_sys_write(AT91_PMC_PCDR, 1<<ssc_p->ssc.pid);
-
- if (ssc_p->initialized) {
- free_irq(ssc_p->ssc.pid, ssc_p);
- ssc_p->initialized = 0;
- }
-
- /* Reset the SSC */
- at91_ssc_write(ssc_p->ssc.base + AT91_SSC_CR, AT91_SSC_SWRST);
-
- /* Clear the SSC dividers */
- ssc_p->cmr_div = ssc_p->tcmr_period = ssc_p->rcmr_period = 0;
- }
- spin_unlock_irq(&ssc_p->lock);
-}
-
-/*
- * Record the SSC system clock rate.
- */
-static int at91_ssc_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
- int clk_id, unsigned int freq, int dir)
-{
- /*
- * The only clock supplied to the SSC is the AT91 master clock,
- * which is only used if the SSC is generating BCLK and/or
- * LRC clocks.
- */
- switch (clk_id) {
- case AT91_SYSCLK_MCK:
- at91_ssc_sysclk = freq;
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-/*
- * Record the DAI format for use in hw_params().
- */
-static int at91_ssc_set_dai_fmt(struct snd_soc_dai *cpu_dai,
- unsigned int fmt)
-{
- struct at91_ssc_info *ssc_p = &ssc_info[cpu_dai->id];
-
- ssc_p->daifmt = fmt;
- return 0;
-}
-
-/*
- * Record SSC clock dividers for use in hw_params().
- */
-static int at91_ssc_set_dai_clkdiv(struct snd_soc_dai *cpu_dai,
- int div_id, int div)
-{
- struct at91_ssc_info *ssc_p = &ssc_info[cpu_dai->id];
-
- switch (div_id) {
- case AT91SSC_CMR_DIV:
- /*
- * The same master clock divider is used for both
- * transmit and receive, so if a value has already
- * been set, it must match this value.
- */
- if (ssc_p->cmr_div == 0)
- ssc_p->cmr_div = div;
- else
- if (div != ssc_p->cmr_div)
- return -EBUSY;
- break;
-
- case AT91SSC_TCMR_PERIOD:
- ssc_p->tcmr_period = div;
- break;
-
- case AT91SSC_RCMR_PERIOD:
- ssc_p->rcmr_period = div;
- break;
-
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-/*
- * Configure the SSC.
- */
-static int at91_ssc_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- int id = rtd->dai->cpu_dai->id;
- struct at91_ssc_info *ssc_p = &ssc_info[id];
- struct at91_pcm_dma_params *dma_params;
- int dir, channels, bits;
- u32 tfmr, rfmr, tcmr, rcmr;
- int start_event;
- int ret;
-
- /*
- * Currently, there is only one set of dma params for
- * each direction. If more are added, this code will
- * have to be changed to select the proper set.
- */
- dir = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1;
-
- dma_params = &ssc_dma_params[id][dir];
- dma_params->ssc_base = ssc_p->ssc.base;
- dma_params->substream = substream;
-
- ssc_p->dma_params[dir] = dma_params;
-
- /*
- * The cpu_dai->dma_data field is only used to communicate the
- * appropriate DMA parameters to the pcm driver hw_params()
- * function. It should not be used for other purposes
- * as it is common to all substreams.
- */
- rtd->dai->cpu_dai->dma_data = dma_params;
-
- channels = params_channels(params);
-
- /*
- * Determine sample size in bits and the PDC increment.
- */
- switch(params_format(params)) {
- case SNDRV_PCM_FORMAT_S8:
- bits = 8;
- dma_params->pdc_xfer_size = 1;
- break;
- case SNDRV_PCM_FORMAT_S16_LE:
- bits = 16;
- dma_params->pdc_xfer_size = 2;
- break;
- case SNDRV_PCM_FORMAT_S24_LE:
- bits = 24;
- dma_params->pdc_xfer_size = 4;
- break;
- case SNDRV_PCM_FORMAT_S32_LE:
- bits = 32;
- dma_params->pdc_xfer_size = 4;
- break;
- default:
- printk(KERN_WARNING "at91-ssc: unsupported PCM format\n");
- return -EINVAL;
- }
-
- /*
- * The SSC only supports up to 16-bit samples in I2S format, due
- * to the size of the Frame Mode Register FSLEN field.
- */
- if ((ssc_p->daifmt & SND_SOC_DAIFMT_FORMAT_MASK) == SND_SOC_DAIFMT_I2S
- && bits > 16) {
- printk(KERN_WARNING
- "at91-ssc: sample size %d is too large for I2S\n", bits);
- return -EINVAL;
- }
-
- /*
- * Compute SSC register settings.
- */
- switch (ssc_p->daifmt
- & (SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_MASTER_MASK)) {
-
- case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS:
- /*
- * I2S format, SSC provides BCLK and LRC clocks.
- *
- * The SSC transmit and receive clocks are generated from the
- * MCK divider, and the BCLK signal is output on the SSC TK line.
- */
- rcmr = (( ssc_p->rcmr_period << 24) & AT91_SSC_PERIOD)
- | (( 1 << 16) & AT91_SSC_STTDLY)
- | (( AT91_SSC_START_FALLING_RF ) & AT91_SSC_START)
- | (( AT91_SSC_CK_RISING ) & AT91_SSC_CKI)
- | (( AT91_SSC_CKO_NONE ) & AT91_SSC_CKO)
- | (( AT91_SSC_CKS_DIV ) & AT91_SSC_CKS);
-
- rfmr = (( AT91_SSC_FSEDGE_POSITIVE ) & AT91_SSC_FSEDGE)
- | (( AT91_SSC_FSOS_NEGATIVE ) & AT91_SSC_FSOS)
- | (((bits - 1) << 16) & AT91_SSC_FSLEN)
- | (((channels - 1) << 8) & AT91_SSC_DATNB)
- | (( 1 << 7) & AT91_SSC_MSBF)
- | (( 0 << 5) & AT91_SSC_LOOP)
- | (((bits - 1) << 0) & AT91_SSC_DATALEN);
-
- tcmr = (( ssc_p->tcmr_period << 24) & AT91_SSC_PERIOD)
- | (( 1 << 16) & AT91_SSC_STTDLY)
- | (( AT91_SSC_START_FALLING_RF ) & AT91_SSC_START)
- | (( AT91_SSC_CKI_FALLING ) & AT91_SSC_CKI)
- | (( AT91_SSC_CKO_CONTINUOUS ) & AT91_SSC_CKO)
- | (( AT91_SSC_CKS_DIV ) & AT91_SSC_CKS);
-
- tfmr = (( AT91_SSC_FSEDGE_POSITIVE ) & AT91_SSC_FSEDGE)
- | (( 0 << 23) & AT91_SSC_FSDEN)
- | (( AT91_SSC_FSOS_NEGATIVE ) & AT91_SSC_FSOS)
- | (((bits - 1) << 16) & AT91_SSC_FSLEN)
- | (((channels - 1) << 8) & AT91_SSC_DATNB)
- | (( 1 << 7) & AT91_SSC_MSBF)
- | (( 0 << 5) & AT91_SSC_DATDEF)
- | (((bits - 1) << 0) & AT91_SSC_DATALEN);
- break;
-
- case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBM_CFM:
- /*
- * I2S format, CODEC supplies BCLK and LRC clocks.
- *
- * The SSC transmit clock is obtained from the BCLK signal on
- * on the TK line, and the SSC receive clock is generated from the
- * transmit clock.
- *
- * For single channel data, one sample is transferred on the falling
- * edge of the LRC clock. For two channel data, one sample is
- * transferred on both edges of the LRC clock.
- */
- start_event = channels == 1
- ? AT91_SSC_START_FALLING_RF
- : AT91_SSC_START_EDGE_RF;
-
- rcmr = (( 0 << 24) & AT91_SSC_PERIOD)
- | (( 1 << 16) & AT91_SSC_STTDLY)
- | (( start_event ) & AT91_SSC_START)
- | (( AT91_SSC_CK_RISING ) & AT91_SSC_CKI)
- | (( AT91_SSC_CKO_NONE ) & AT91_SSC_CKO)
- | (( AT91_SSC_CKS_CLOCK ) & AT91_SSC_CKS);
-
- rfmr = (( AT91_SSC_FSEDGE_POSITIVE ) & AT91_SSC_FSEDGE)
- | (( AT91_SSC_FSOS_NONE ) & AT91_SSC_FSOS)
- | (( 0 << 16) & AT91_SSC_FSLEN)
- | (( 0 << 8) & AT91_SSC_DATNB)
- | (( 1 << 7) & AT91_SSC_MSBF)
- | (( 0 << 5) & AT91_SSC_LOOP)
- | (((bits - 1) << 0) & AT91_SSC_DATALEN);
-
- tcmr = (( 0 << 24) & AT91_SSC_PERIOD)
- | (( 1 << 16) & AT91_SSC_STTDLY)
- | (( start_event ) & AT91_SSC_START)
- | (( AT91_SSC_CKI_FALLING ) & AT91_SSC_CKI)
- | (( AT91_SSC_CKO_NONE ) & AT91_SSC_CKO)
- | (( AT91_SSC_CKS_PIN ) & AT91_SSC_CKS);
-
- tfmr = (( AT91_SSC_FSEDGE_POSITIVE ) & AT91_SSC_FSEDGE)
- | (( 0 << 23) & AT91_SSC_FSDEN)
- | (( AT91_SSC_FSOS_NONE ) & AT91_SSC_FSOS)
- | (( 0 << 16) & AT91_SSC_FSLEN)
- | (( 0 << 8) & AT91_SSC_DATNB)
- | (( 1 << 7) & AT91_SSC_MSBF)
- | (( 0 << 5) & AT91_SSC_DATDEF)
- | (((bits - 1) << 0) & AT91_SSC_DATALEN);
- break;
-
- case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_CBS_CFS:
- /*
- * DSP/PCM Mode A format, SSC provides BCLK and LRC clocks.
- *
- * The SSC transmit and receive clocks are generated from the
- * MCK divider, and the BCLK signal is output on the SSC TK line.
- */
- rcmr = (( ssc_p->rcmr_period << 24) & AT91_SSC_PERIOD)
- | (( 1 << 16) & AT91_SSC_STTDLY)
- | (( AT91_SSC_START_RISING_RF ) & AT91_SSC_START)
- | (( AT91_SSC_CK_RISING ) & AT91_SSC_CKI)
- | (( AT91_SSC_CKO_NONE ) & AT91_SSC_CKO)
- | (( AT91_SSC_CKS_DIV ) & AT91_SSC_CKS);
-
- rfmr = (( AT91_SSC_FSEDGE_POSITIVE ) & AT91_SSC_FSEDGE)
- | (( AT91_SSC_FSOS_POSITIVE ) & AT91_SSC_FSOS)
- | (( 0 << 16) & AT91_SSC_FSLEN)
- | (((channels - 1) << 8) & AT91_SSC_DATNB)
- | (( 1 << 7) & AT91_SSC_MSBF)
- | (( 0 << 5) & AT91_SSC_LOOP)
- | (((bits - 1) << 0) & AT91_SSC_DATALEN);
-
- tcmr = (( ssc_p->tcmr_period << 24) & AT91_SSC_PERIOD)
- | (( 1 << 16) & AT91_SSC_STTDLY)
- | (( AT91_SSC_START_RISING_RF ) & AT91_SSC_START)
- | (( AT91_SSC_CK_RISING ) & AT91_SSC_CKI)
- | (( AT91_SSC_CKO_CONTINUOUS ) & AT91_SSC_CKO)
- | (( AT91_SSC_CKS_DIV ) & AT91_SSC_CKS);
-
- tfmr = (( AT91_SSC_FSEDGE_POSITIVE ) & AT91_SSC_FSEDGE)
- | (( 0 << 23) & AT91_SSC_FSDEN)
- | (( AT91_SSC_FSOS_POSITIVE ) & AT91_SSC_FSOS)
- | (( 0 << 16) & AT91_SSC_FSLEN)
- | (((channels - 1) << 8) & AT91_SSC_DATNB)
- | (( 1 << 7) & AT91_SSC_MSBF)
- | (( 0 << 5) & AT91_SSC_DATDEF)
- | (((bits - 1) << 0) & AT91_SSC_DATALEN);
-
-
-
- break;
-
- case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_CBM_CFM:
- default:
- printk(KERN_WARNING "at91-ssc: unsupported DAI format 0x%x.\n",
- ssc_p->daifmt);
- return -EINVAL;
- break;
- }
- DBG("RCMR=%08x RFMR=%08x TCMR=%08x TFMR=%08x\n", rcmr, rfmr, tcmr, tfmr);
-
- if (!ssc_p->initialized) {
-
- /* Enable PMC peripheral clock for this SSC */
- DBG("Starting pid %d clock\n", ssc_p->ssc.pid);
- at91_sys_write(AT91_PMC_PCER, 1<<ssc_p->ssc.pid);
-
- /* Reset the SSC and its PDC registers */
- at91_ssc_write(ssc_p->ssc.base + AT91_SSC_CR, AT91_SSC_SWRST);
-
- at91_ssc_write(ssc_p->ssc.base + ATMEL_PDC_RPR, 0);
- at91_ssc_write(ssc_p->ssc.base + ATMEL_PDC_RCR, 0);
- at91_ssc_write(ssc_p->ssc.base + ATMEL_PDC_RNPR, 0);
- at91_ssc_write(ssc_p->ssc.base + ATMEL_PDC_RNCR, 0);
- at91_ssc_write(ssc_p->ssc.base + ATMEL_PDC_TPR, 0);
- at91_ssc_write(ssc_p->ssc.base + ATMEL_PDC_TCR, 0);
- at91_ssc_write(ssc_p->ssc.base + ATMEL_PDC_TNPR, 0);
- at91_ssc_write(ssc_p->ssc.base + ATMEL_PDC_TNCR, 0);
-
- if ((ret = request_irq(ssc_p->ssc.pid, at91_ssc_interrupt,
- 0, ssc_p->name, ssc_p)) < 0) {
- printk(KERN_WARNING "at91-ssc: request_irq failure\n");
-
- DBG("Stopping pid %d clock\n", ssc_p->ssc.pid);
- at91_sys_write(AT91_PMC_PCDR, 1<<ssc_p->ssc.pid);
- return ret;
- }
-
- ssc_p->initialized = 1;
- }
-
- /* set SSC clock mode register */
- at91_ssc_write(ssc_p->ssc.base + AT91_SSC_CMR, ssc_p->cmr_div);
-
- /* set receive clock mode and format */
- at91_ssc_write(ssc_p->ssc.base + AT91_SSC_RCMR, rcmr);
- at91_ssc_write(ssc_p->ssc.base + AT91_SSC_RFMR, rfmr);
-
- /* set transmit clock mode and format */
- at91_ssc_write(ssc_p->ssc.base + AT91_SSC_TCMR, tcmr);
- at91_ssc_write(ssc_p->ssc.base + AT91_SSC_TFMR, tfmr);
-
- DBG("hw_params: SSC initialized\n");
- return 0;
-}
-
-
-static int at91_ssc_prepare(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct at91_ssc_info *ssc_p = &ssc_info[rtd->dai->cpu_dai->id];
- struct at91_pcm_dma_params *dma_params;
- int dir;
-
- dir = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1;
- dma_params = ssc_p->dma_params[dir];
-
- at91_ssc_write(dma_params->ssc_base + AT91_SSC_CR,
- dma_params->mask->ssc_enable);
-
- DBG("%s enabled SSC_SR=0x%08lx\n", dir ? "receive" : "transmit",
- at91_ssc_read(dma_params->ssc_base + AT91_SSC_SR));
- return 0;
-}
-
-
-#ifdef CONFIG_PM
-static int at91_ssc_suspend(struct platform_device *pdev,
- struct snd_soc_dai *cpu_dai)
-{
- struct at91_ssc_info *ssc_p;
-
- if(!cpu_dai->active)
- return 0;
-
- ssc_p = &ssc_info[cpu_dai->id];
-
- /* Save the status register before disabling transmit and receive. */
- ssc_p->ssc_state.ssc_sr = at91_ssc_read(ssc_p->ssc.base + AT91_SSC_SR);
- at91_ssc_write(ssc_p->ssc.base + AT91_SSC_CR,
- AT91_SSC_TXDIS | AT91_SSC_RXDIS);
-
- /* Save the current interrupt mask, then disable unmasked interrupts. */
- ssc_p->ssc_state.ssc_imr = at91_ssc_read(ssc_p->ssc.base + AT91_SSC_IMR);
- at91_ssc_write(ssc_p->ssc.base + AT91_SSC_IDR, ssc_p->ssc_state.ssc_imr);
-
- ssc_p->ssc_state.ssc_cmr = at91_ssc_read(ssc_p->ssc.base + AT91_SSC_CMR);
- ssc_p->ssc_state.ssc_rcmr = at91_ssc_read(ssc_p->ssc.base + AT91_SSC_RCMR);
- ssc_p->ssc_state.ssc_rfmr = at91_ssc_read(ssc_p->ssc.base + AT91_SSC_RFMR);
- ssc_p->ssc_state.ssc_tcmr = at91_ssc_read(ssc_p->ssc.base + AT91_SSC_TCMR);
- ssc_p->ssc_state.ssc_tfmr = at91_ssc_read(ssc_p->ssc.base + AT91_SSC_TFMR);
-
- return 0;
-}
-
-static int at91_ssc_resume(struct platform_device *pdev,
- struct snd_soc_dai *cpu_dai)
-{
- struct at91_ssc_info *ssc_p;
-
- if(!cpu_dai->active)
- return 0;
-
- ssc_p = &ssc_info[cpu_dai->id];
-
- at91_ssc_write(ssc_p->ssc.base + AT91_SSC_TFMR, ssc_p->ssc_state.ssc_tfmr);
- at91_ssc_write(ssc_p->ssc.base + AT91_SSC_TCMR, ssc_p->ssc_state.ssc_tcmr);
- at91_ssc_write(ssc_p->ssc.base + AT91_SSC_RFMR, ssc_p->ssc_state.ssc_rfmr);
- at91_ssc_write(ssc_p->ssc.base + AT91_SSC_RCMR, ssc_p->ssc_state.ssc_rcmr);
- at91_ssc_write(ssc_p->ssc.base + AT91_SSC_CMR, ssc_p->ssc_state.ssc_cmr);
-
- at91_ssc_write(ssc_p->ssc.base + AT91_SSC_IER, ssc_p->ssc_state.ssc_imr);
-
- at91_ssc_write(ssc_p->ssc.base + AT91_SSC_CR,
- ((ssc_p->ssc_state.ssc_sr & AT91_SSC_RXENA) ? AT91_SSC_RXEN : 0) |
- ((ssc_p->ssc_state.ssc_sr & AT91_SSC_TXENA) ? AT91_SSC_TXEN : 0));
-
- return 0;
-}
-
-#else
-#define at91_ssc_suspend NULL
-#define at91_ssc_resume NULL
-#endif
-
-#define AT91_SSC_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
- SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
- SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
- SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
- SNDRV_PCM_RATE_96000)
-
-#define AT91_SSC_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE |\
- SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
-
-struct snd_soc_dai at91_ssc_dai[NUM_SSC_DEVICES] = {
- { .name = "at91-ssc0",
- .id = 0,
- .type = SND_SOC_DAI_PCM,
- .suspend = at91_ssc_suspend,
- .resume = at91_ssc_resume,
- .playback = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = AT91_SSC_RATES,
- .formats = AT91_SSC_FORMATS,},
- .capture = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = AT91_SSC_RATES,
- .formats = AT91_SSC_FORMATS,},
- .ops = {
- .startup = at91_ssc_startup,
- .shutdown = at91_ssc_shutdown,
- .prepare = at91_ssc_prepare,
- .hw_params = at91_ssc_hw_params,},
- .dai_ops = {
- .set_sysclk = at91_ssc_set_dai_sysclk,
- .set_fmt = at91_ssc_set_dai_fmt,
- .set_clkdiv = at91_ssc_set_dai_clkdiv,},
- .private_data = &ssc_info[0].ssc,
- },
-#if NUM_SSC_DEVICES == 3
- { .name = "at91-ssc1",
- .id = 1,
- .type = SND_SOC_DAI_PCM,
- .suspend = at91_ssc_suspend,
- .resume = at91_ssc_resume,
- .playback = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = AT91_SSC_RATES,
- .formats = AT91_SSC_FORMATS,},
- .capture = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = AT91_SSC_RATES,
- .formats = AT91_SSC_FORMATS,},
- .ops = {
- .startup = at91_ssc_startup,
- .shutdown = at91_ssc_shutdown,
- .prepare = at91_ssc_prepare,
- .hw_params = at91_ssc_hw_params,},
- .dai_ops = {
- .set_sysclk = at91_ssc_set_dai_sysclk,
- .set_fmt = at91_ssc_set_dai_fmt,
- .set_clkdiv = at91_ssc_set_dai_clkdiv,},
- .private_data = &ssc_info[1].ssc,
- },
- { .name = "at91-ssc2",
- .id = 2,
- .type = SND_SOC_DAI_PCM,
- .suspend = at91_ssc_suspend,
- .resume = at91_ssc_resume,
- .playback = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = AT91_SSC_RATES,
- .formats = AT91_SSC_FORMATS,},
- .capture = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = AT91_SSC_RATES,
- .formats = AT91_SSC_FORMATS,},
- .ops = {
- .startup = at91_ssc_startup,
- .shutdown = at91_ssc_shutdown,
- .prepare = at91_ssc_prepare,
- .hw_params = at91_ssc_hw_params,},
- .dai_ops = {
- .set_sysclk = at91_ssc_set_dai_sysclk,
- .set_fmt = at91_ssc_set_dai_fmt,
- .set_clkdiv = at91_ssc_set_dai_clkdiv,},
- .private_data = &ssc_info[2].ssc,
- },
-#endif
-};
-
-EXPORT_SYMBOL_GPL(at91_ssc_dai);
-
-/* Module information */
-MODULE_AUTHOR("Frank Mandarino, fmandarino at endrelia.com, www.endrelia.com");
-MODULE_DESCRIPTION("AT91 SSC ASoC Interface");
-MODULE_LICENSE("GPL");
diff --git a/sound/soc/at91/at91-ssc.h b/sound/soc/at91/at91-ssc.h
deleted file mode 100644
index 6b7bf38..0000000
--- a/sound/soc/at91/at91-ssc.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * at91-ssc.h - ALSA SSC interface for the Atmel AT91 SoC
- *
- * Author: Frank Mandarino <fmandarino at endrelia.com>
- * Endrelia Technologies Inc.
- * Created: Jan 9, 2007
- *
- * 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
- * published by the Free Software Foundation.
- */
-
-#ifndef _AT91_SSC_H
-#define _AT91_SSC_H
-
-/* SSC system clock ids */
-#define AT91_SYSCLK_MCK 0 /* SSC uses AT91 MCK as system clock */
-
-/* SSC divider ids */
-#define AT91SSC_CMR_DIV 0 /* MCK divider for BCLK */
-#define AT91SSC_TCMR_PERIOD 1 /* BCLK divider for transmit FS */
-#define AT91SSC_RCMR_PERIOD 2 /* BCLK divider for receive FS */
-
-extern struct snd_soc_dai at91_ssc_dai[];
-
-#endif /* _AT91_SSC_H */
-
--
1.5.3.7
--------------060703030706060207010806--
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