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authorLinus Torvalds <torvalds@linux-foundation.org>2012-07-25 00:37:37 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-25 00:37:37 +0400
commitdbf7b5915b39bfff548e4c6a3a753fc291a60e25 (patch)
tree55c457a22aa869d2ab558317877138369ae5f9bb /sound/soc/ux500/ux500_pcm.c
parentd14b7a419a664cd7c1c585c9e7fffee9e9051d53 (diff)
parentc1b623d9e4117d18d244e9b7fb30d2c27aeaf074 (diff)
downloadlinux-dbf7b5915b39bfff548e4c6a3a753fc291a60e25.tar.xz
Merge tag 'sound-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound update from Takashi Iwai: "This is a fairly quiet release in all sound area. Only a little bit of changes in the core side while most of changes are seen in the drivers. HD-audio: - A few new codec additions for Nvidia, Realtek and VIA - Intel Haswell audio support - Support for "phantom" jacks for consistent jack reporting - Major clean-ups in HDMI/DP driver codes - A workaround for inverted digital-mic pins with Realtek codecs - Removal of beep_mode=2 option ASoC: - Added the ability to add and remove DAPM paths dynamically, mostly for reparenting on clock changes - New machine drivers for Marvell Brownstone, ST-Ericsson Ux500 reference platform and ttc-dkp - New CPU drivers for Blackfin BF6xx SPORTs in I2S mode, Marvell MMP, Synopsis Designware I2S controllers, and SPEAr DMA and S/PDIF - New CODEC drivers for Dialog DA732x, ST STA529, ST-Ericsson AB8500, TI Isabelle and Wolfson Microelectronics WM5102 and WM5110 - DAPM fixes for the recent locking changes - Fix for _PRE and _POST widgets (which have been broken for a few releases now) - A couple of minor driver updates Misc - Conversion to new dev_pm_ops in platform and PCI drivers - LTC support and some fixes in PCXHR driver - A few fixes and PM support for ISA OPti9xx and WSS cards - Some TLV code cleanup - Move driver-specific headers from include/sound to local dirs" * tag 'sound-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (212 commits) ASoC: dapm: Fix _PRE and _POST events for DAPM performance improvements ALSA: hda - add dock support for Thinkpad X230 Tablet ALSA: hda - Turn on PIN_OUT from hdmi playback prepare. ASoC imx-audmux: add MX31_AUDMUX_PORT7_SSI_PINS_7 define ASoC: littlemill: Add userspace control of the WM1250 I/O ASoC: wm8994: Update micdet for irqdomain conversion ALSA: hda - make sure alc268 does not OOPS on codec parse ALSA: hda - Add support for Realtek ALC282 ALSA: hda - Fix index number conflicts of phantom jacks ALSA: opti9xx: Fix section mismatch by PM support ALSA: snd-opti9xx: Implement suspend/resume ALSA: hda - Add new GPU codec ID to snd-hda ALSA: hda - Fix driver type of Haswell controller to AZX_DRIVER_SCH ALSA: hda - add Haswell HDMI codec id ALSA: hda - Add DeviceID for Haswell HDA ALSA: wss_lib: Fix resume on Yamaha OPL3-SAx ALSA: wss_lib: fix suspend/resume ALSA: es1938: replace TLV_DB_RANGE_HEAD with DECLARE_TLV_DB_RANGE ALSA: tlv: add DECLARE_TLV_DB_RANGE() ALSA: tlv: add DECLARE_TLV_CONTAINER() ...
Diffstat (limited to 'sound/soc/ux500/ux500_pcm.c')
-rw-r--r--sound/soc/ux500/ux500_pcm.c318
1 files changed, 318 insertions, 0 deletions
diff --git a/sound/soc/ux500/ux500_pcm.c b/sound/soc/ux500/ux500_pcm.c
new file mode 100644
index 000000000000..1a04e248453c
--- /dev/null
+++ b/sound/soc/ux500/ux500_pcm.c
@@ -0,0 +1,318 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2012
+ *
+ * Author: Ola Lilja <ola.o.lilja@stericsson.com>,
+ * Roger Nilsson <roger.xr.nilsson@stericsson.com>
+ * for ST-Ericsson.
+ *
+ * License terms:
+ *
+ * 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 <asm/page.h>
+
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/dmaengine.h>
+#include <linux/slab.h>
+
+#include <plat/ste_dma40.h>
+
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/dmaengine_pcm.h>
+
+#include "ux500_msp_i2s.h"
+#include "ux500_pcm.h"
+
+static struct snd_pcm_hardware ux500_pcm_hw_playback = {
+ .info = SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_RESUME |
+ SNDRV_PCM_INFO_PAUSE,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_U16_LE |
+ SNDRV_PCM_FMTBIT_S16_BE |
+ SNDRV_PCM_FMTBIT_U16_BE,
+ .rates = SNDRV_PCM_RATE_KNOT,
+ .rate_min = UX500_PLATFORM_MIN_RATE_PLAYBACK,
+ .rate_max = UX500_PLATFORM_MAX_RATE_PLAYBACK,
+ .channels_min = UX500_PLATFORM_MIN_CHANNELS,
+ .channels_max = UX500_PLATFORM_MAX_CHANNELS,
+ .buffer_bytes_max = UX500_PLATFORM_BUFFER_BYTES_MAX,
+ .period_bytes_min = UX500_PLATFORM_PERIODS_BYTES_MIN,
+ .period_bytes_max = UX500_PLATFORM_PERIODS_BYTES_MAX,
+ .periods_min = UX500_PLATFORM_PERIODS_MIN,
+ .periods_max = UX500_PLATFORM_PERIODS_MAX,
+};
+
+static struct snd_pcm_hardware ux500_pcm_hw_capture = {
+ .info = SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_RESUME |
+ SNDRV_PCM_INFO_PAUSE,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_U16_LE |
+ SNDRV_PCM_FMTBIT_S16_BE |
+ SNDRV_PCM_FMTBIT_U16_BE,
+ .rates = SNDRV_PCM_RATE_KNOT,
+ .rate_min = UX500_PLATFORM_MIN_RATE_CAPTURE,
+ .rate_max = UX500_PLATFORM_MAX_RATE_CAPTURE,
+ .channels_min = UX500_PLATFORM_MIN_CHANNELS,
+ .channels_max = UX500_PLATFORM_MAX_CHANNELS,
+ .buffer_bytes_max = UX500_PLATFORM_BUFFER_BYTES_MAX,
+ .period_bytes_min = UX500_PLATFORM_PERIODS_BYTES_MIN,
+ .period_bytes_max = UX500_PLATFORM_PERIODS_BYTES_MAX,
+ .periods_min = UX500_PLATFORM_PERIODS_MIN,
+ .periods_max = UX500_PLATFORM_PERIODS_MAX,
+};
+
+static void ux500_pcm_dma_hw_free(struct device *dev,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_dma_buffer *buf = runtime->dma_buffer_p;
+
+ if (runtime->dma_area == NULL)
+ return;
+
+ if (buf != &substream->dma_buffer) {
+ dma_free_coherent(buf->dev.dev, buf->bytes, buf->area,
+ buf->addr);
+ kfree(runtime->dma_buffer_p);
+ }
+
+ snd_pcm_set_runtime_buffer(substream, NULL);
+}
+
+static int ux500_pcm_open(struct snd_pcm_substream *substream)
+{
+ int stream_id = substream->pstr->stream;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *dai = rtd->cpu_dai;
+ struct device *dev = dai->dev;
+ int ret;
+ struct ux500_msp_dma_params *dma_params;
+ u16 per_data_width, mem_data_width;
+ struct stedma40_chan_cfg *dma_cfg;
+
+ dev_dbg(dev, "%s: MSP %d (%s): Enter.\n", __func__, dai->id,
+ snd_pcm_stream_str(substream));
+
+ dev_dbg(dev, "%s: Set runtime hwparams.\n", __func__);
+ if (stream_id == SNDRV_PCM_STREAM_PLAYBACK)
+ snd_soc_set_runtime_hwparams(substream,
+ &ux500_pcm_hw_playback);
+ else
+ snd_soc_set_runtime_hwparams(substream,
+ &ux500_pcm_hw_capture);
+
+ /* 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) {
+ dev_err(dev, "%s: Error: snd_pcm_hw_constraints failed (%d)\n",
+ __func__, ret);
+ return ret;
+ }
+
+ dev_dbg(dev, "%s: Set hw-struct for %s.\n", __func__,
+ snd_pcm_stream_str(substream));
+ runtime->hw = (stream_id == SNDRV_PCM_STREAM_PLAYBACK) ?
+ ux500_pcm_hw_playback : ux500_pcm_hw_capture;
+
+ mem_data_width = STEDMA40_HALFWORD_WIDTH;
+
+ dma_params = snd_soc_dai_get_dma_data(dai, substream);
+ switch (dma_params->data_size) {
+ case 32:
+ per_data_width = STEDMA40_WORD_WIDTH;
+ break;
+ case 16:
+ per_data_width = STEDMA40_HALFWORD_WIDTH;
+ break;
+ case 8:
+ per_data_width = STEDMA40_BYTE_WIDTH;
+ break;
+ default:
+ per_data_width = STEDMA40_WORD_WIDTH;
+ dev_warn(rtd->platform->dev,
+ "%s: Unknown data-size (%d)! Assuming 32 bits.\n",
+ __func__, dma_params->data_size);
+ }
+
+ dma_cfg = dma_params->dma_cfg;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ dma_cfg->src_info.data_width = mem_data_width;
+ dma_cfg->dst_info.data_width = per_data_width;
+ } else {
+ dma_cfg->src_info.data_width = per_data_width;
+ dma_cfg->dst_info.data_width = mem_data_width;
+ }
+
+
+ ret = snd_dmaengine_pcm_open(substream, stedma40_filter, dma_cfg);
+ if (ret) {
+ dev_dbg(dai->dev,
+ "%s: ERROR: snd_dmaengine_pcm_open failed (%d)!\n",
+ __func__, ret);
+ return ret;
+ }
+
+ snd_dmaengine_pcm_set_data(substream, dma_cfg);
+
+ return 0;
+}
+
+static int ux500_pcm_close(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *dai = rtd->cpu_dai;
+
+ dev_dbg(dai->dev, "%s: Enter\n", __func__);
+
+ snd_dmaengine_pcm_close(substream);
+
+ return 0;
+}
+
+static int ux500_pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_dma_buffer *buf = runtime->dma_buffer_p;
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ int ret = 0;
+ int size;
+
+ dev_dbg(rtd->platform->dev, "%s: Enter\n", __func__);
+
+ size = params_buffer_bytes(hw_params);
+
+ if (buf) {
+ if (buf->bytes >= size)
+ goto out;
+ ux500_pcm_dma_hw_free(NULL, substream);
+ }
+
+ if (substream->dma_buffer.area != NULL &&
+ substream->dma_buffer.bytes >= size) {
+ buf = &substream->dma_buffer;
+ } else {
+ buf = kmalloc(sizeof(struct snd_dma_buffer), GFP_KERNEL);
+ if (!buf)
+ goto nomem;
+
+ buf->dev.type = SNDRV_DMA_TYPE_DEV;
+ buf->dev.dev = NULL;
+ buf->area = dma_alloc_coherent(NULL, size, &buf->addr,
+ GFP_KERNEL);
+ buf->bytes = size;
+ buf->private_data = NULL;
+
+ if (!buf->area)
+ goto free;
+ }
+ snd_pcm_set_runtime_buffer(substream, buf);
+ ret = 1;
+ out:
+ runtime->dma_bytes = size;
+ return ret;
+
+ free:
+ kfree(buf);
+ nomem:
+ return -ENOMEM;
+}
+
+static int ux500_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+
+ dev_dbg(rtd->platform->dev, "%s: Enter\n", __func__);
+
+ ux500_pcm_dma_hw_free(NULL, substream);
+
+ return 0;
+}
+
+static int ux500_pcm_mmap(struct snd_pcm_substream *substream,
+ struct vm_area_struct *vma)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+
+ dev_dbg(rtd->platform->dev, "%s: Enter.\n", __func__);
+
+ return dma_mmap_coherent(NULL, vma, runtime->dma_area,
+ runtime->dma_addr, runtime->dma_bytes);
+}
+
+static struct snd_pcm_ops ux500_pcm_ops = {
+ .open = ux500_pcm_open,
+ .close = ux500_pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = ux500_pcm_hw_params,
+ .hw_free = ux500_pcm_hw_free,
+ .trigger = snd_dmaengine_pcm_trigger,
+ .pointer = snd_dmaengine_pcm_pointer_no_residue,
+ .mmap = ux500_pcm_mmap
+};
+
+int ux500_pcm_new(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_pcm *pcm = rtd->pcm;
+
+ dev_dbg(rtd->platform->dev, "%s: Enter (id = '%s').\n", __func__,
+ pcm->id);
+
+ pcm->info_flags = 0;
+
+ return 0;
+}
+
+static struct snd_soc_platform_driver ux500_pcm_soc_drv = {
+ .ops = &ux500_pcm_ops,
+ .pcm_new = ux500_pcm_new,
+};
+
+static int __devexit ux500_pcm_drv_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ ret = snd_soc_register_platform(&pdev->dev, &ux500_pcm_soc_drv);
+ if (ret < 0) {
+ dev_err(&pdev->dev,
+ "%s: ERROR: Failed to register platform '%s' (%d)!\n",
+ __func__, pdev->name, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int __devinit ux500_pcm_drv_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_platform(&pdev->dev);
+
+ return 0;
+}
+
+static struct platform_driver ux500_pcm_driver = {
+ .driver = {
+ .name = "ux500-pcm",
+ .owner = THIS_MODULE,
+ },
+
+ .probe = ux500_pcm_drv_probe,
+ .remove = __devexit_p(ux500_pcm_drv_remove),
+};
+module_platform_driver(ux500_pcm_driver);
+
+MODULE_LICENSE("GPL v2");