diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-23 13:05:43 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-23 13:05:43 -0700 |
commit | 2e341ca686042aa464efa755447e7bcee91d1eb6 (patch) | |
tree | c6b16b6b6a6e871fa04396cb2c7eb759bcad5be3 /sound/soc/tegra/tegra_spdif.c | |
parent | 927ad551031798d4cba49766549600bbb33872d7 (diff) | |
parent | 85e184e4c3cd3e2285ceab91ff8f0cac094e8a85 (diff) |
Merge tag 'sound-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"This is the first big chunk for 3.5 merges of sound stuff.
There are a few big changes in different areas. First off, the
streaming logic of USB-audio endpoints has been largely rewritten for
the better support of "implicit feedback". If anything about USB got
broken, this change has to be checked.
For HD-audio, the resume procedure was changed; instead of delaying
the resume of the hardware until the first use, now waking up
immediately at resume. This is for buggy BIOS.
For ASoC, dynamic PCM support and the improved support for digital
links between off-SoC devices are major framework changes.
Some highlights are below:
* HD-audio
- Avoid accesses of invalid pin-control bits that may stall the codec
- V-ref setup cleanups
- Fix the races in power-saving code
- Fix the races in codec cache hashes and connection lists
- Split some common codes for BIOS auto-parser to hda_auto_parser.c
- Changed the PM resume code to wake up immediately for buggy BIOS
- Creative SoundCore3D support
- Add Conexant CX20751/2/3/4 codec support
* ASoC
- Dynamic PCM support, allowing support for SoCs with internal
routing through components with tight sequencing and formatting
constraints within their internal paths or where there are multiple
components connected with CPU managed DMA controllers inside the
SoC.
- Greatly improved support for direct digital links between off-SoC
devices, providing a much simpler way of connecting things like
digital basebands to CODECs.
- Much more fine grained and robust locking, cleaning up some of the
confusion that crept in with multi-component.
- CPU support for nVidia Tegra 30 I2S and audio hub controllers and
ST-Ericsson MSP I2S controolers
- New CODEC drivers for Cirrus CS42L52, LAPIS Semiconductor ML26124,
Texas Instruments LM49453.
- Some regmap changes needed by the Tegra I2S driver.
- mc13783 audio support.
* Misc
- Rewrite with module_pci_driver()
- Xonar DGX support for snd-oxygen
- Improvement of packet handling in snd-firewire driver
- New USB-endpoint streaming logic
- Enhanced M-audio FTU quirks and relevant cleanups
- Increment the support of OSS devices to 256
- snd-aloop accuracy improvement
There are a few more pending changes for 3.5, but they will be sent
slightly later as partly depending on the changes of DRM."
Fix up conflicts in regmap (due to duplicate patches, with some further
updates then having already come in from the regmap tree). Also some
fairly trivial context conflicts in the imx and mcx soc drivers.
* tag 'sound-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (280 commits)
ALSA: snd-usb: fix stream info output in /proc
ALSA: pcm - Add proper state checks to snd_pcm_drain()
ALSA: sh: Fix up namespace collision in sh_dac_audio.
ALSA: hda/realtek - Fix unused variable compile warning
ASoC: sh: fsi: enable chip specific data transfer mode
ASoC: sh: fsi: call fsi_hw_startup/shutdown from fsi_dai_trigger()
ASoC: sh: fsi: use same format for IN/OUT
ASoC: sh: fsi: add fsi_version() and removed meaningless version check
ASoC: sh: fsi: use register field macro name on IN/OUT_DMAC
ASoC: tegra: Add machine driver for WM8753 codec
ALSA: hda - Fix possible races of accesses to connection list array
ASoC: OMAP: HDMI: Introduce codec
ARM: mx31_3ds: Add sound support
ASoC: imx-mc13783 cleanup
mx31moboard: Add sound support
ASoC: mc13783 codec cleanups
ASoC: add imx-mc13783 sound support
ASoC: Add mc13783 codec
mfd: mc13xxx: add codec platform data
ASoC: don't flip master of DT-instantiated DAI links
...
Diffstat (limited to 'sound/soc/tegra/tegra_spdif.c')
-rw-r--r-- | sound/soc/tegra/tegra_spdif.c | 364 |
1 files changed, 0 insertions, 364 deletions
diff --git a/sound/soc/tegra/tegra_spdif.c b/sound/soc/tegra/tegra_spdif.c deleted file mode 100644 index 9ff2c601445..00000000000 --- a/sound/soc/tegra/tegra_spdif.c +++ /dev/null @@ -1,364 +0,0 @@ -/* - * tegra_spdif.c - Tegra SPDIF driver - * - * Author: Stephen Warren <swarren@nvidia.com> - * Copyright (C) 2011 - NVIDIA, 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. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * - */ - -#include <linux/clk.h> -#include <linux/module.h> -#include <linux/debugfs.h> -#include <linux/device.h> -#include <linux/platform_device.h> -#include <linux/seq_file.h> -#include <linux/slab.h> -#include <linux/io.h> -#include <mach/iomap.h> -#include <sound/core.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include <sound/soc.h> - -#include "tegra_spdif.h" - -#define DRV_NAME "tegra-spdif" - -static inline void tegra_spdif_write(struct tegra_spdif *spdif, u32 reg, - u32 val) -{ - __raw_writel(val, spdif->regs + reg); -} - -static inline u32 tegra_spdif_read(struct tegra_spdif *spdif, u32 reg) -{ - return __raw_readl(spdif->regs + reg); -} - -#ifdef CONFIG_DEBUG_FS -static int tegra_spdif_show(struct seq_file *s, void *unused) -{ -#define REG(r) { r, #r } - static const struct { - int offset; - const char *name; - } regs[] = { - REG(TEGRA_SPDIF_CTRL), - REG(TEGRA_SPDIF_STATUS), - REG(TEGRA_SPDIF_STROBE_CTRL), - REG(TEGRA_SPDIF_DATA_FIFO_CSR), - REG(TEGRA_SPDIF_CH_STA_RX_A), - REG(TEGRA_SPDIF_CH_STA_RX_B), - REG(TEGRA_SPDIF_CH_STA_RX_C), - REG(TEGRA_SPDIF_CH_STA_RX_D), - REG(TEGRA_SPDIF_CH_STA_RX_E), - REG(TEGRA_SPDIF_CH_STA_RX_F), - REG(TEGRA_SPDIF_CH_STA_TX_A), - REG(TEGRA_SPDIF_CH_STA_TX_B), - REG(TEGRA_SPDIF_CH_STA_TX_C), - REG(TEGRA_SPDIF_CH_STA_TX_D), - REG(TEGRA_SPDIF_CH_STA_TX_E), - REG(TEGRA_SPDIF_CH_STA_TX_F), - }; -#undef REG - - struct tegra_spdif *spdif = s->private; - int i; - - clk_enable(spdif->clk_spdif_out); - - for (i = 0; i < ARRAY_SIZE(regs); i++) { - u32 val = tegra_spdif_read(spdif, regs[i].offset); - seq_printf(s, "%s = %08x\n", regs[i].name, val); - } - - clk_disable(spdif->clk_spdif_out); - - return 0; -} - -static int tegra_spdif_debug_open(struct inode *inode, struct file *file) -{ - return single_open(file, tegra_spdif_show, inode->i_private); -} - -static const struct file_operations tegra_spdif_debug_fops = { - .open = tegra_spdif_debug_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static void tegra_spdif_debug_add(struct tegra_spdif *spdif) -{ - spdif->debug = debugfs_create_file(DRV_NAME, S_IRUGO, - snd_soc_debugfs_root, spdif, - &tegra_spdif_debug_fops); -} - -static void tegra_spdif_debug_remove(struct tegra_spdif *spdif) -{ - if (spdif->debug) - debugfs_remove(spdif->debug); -} -#else -static inline void tegra_spdif_debug_add(struct tegra_spdif *spdif) -{ -} - -static inline void tegra_spdif_debug_remove(struct tegra_spdif *spdif) -{ -} -#endif - -static int tegra_spdif_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *dai) -{ - struct device *dev = substream->pcm->card->dev; - struct tegra_spdif *spdif = snd_soc_dai_get_drvdata(dai); - int ret, spdifclock; - - spdif->reg_ctrl &= ~TEGRA_SPDIF_CTRL_PACK; - spdif->reg_ctrl &= ~TEGRA_SPDIF_CTRL_BIT_MODE_MASK; - switch (params_format(params)) { - case SNDRV_PCM_FORMAT_S16_LE: - spdif->reg_ctrl |= TEGRA_SPDIF_CTRL_PACK; - spdif->reg_ctrl |= TEGRA_SPDIF_CTRL_BIT_MODE_16BIT; - break; - default: - return -EINVAL; - } - - switch (params_rate(params)) { - case 32000: - spdifclock = 4096000; - break; - case 44100: - spdifclock = 5644800; - break; - case 48000: - spdifclock = 6144000; - break; - case 88200: - spdifclock = 11289600; - break; - case 96000: - spdifclock = 12288000; - break; - case 176400: - spdifclock = 22579200; - break; - case 192000: - spdifclock = 24576000; - break; - default: - return -EINVAL; - } - - ret = clk_set_rate(spdif->clk_spdif_out, spdifclock); - if (ret) { - dev_err(dev, "Can't set SPDIF clock rate: %d\n", ret); - return ret; - } - - return 0; -} - -static void tegra_spdif_start_playback(struct tegra_spdif *spdif) -{ - spdif->reg_ctrl |= TEGRA_SPDIF_CTRL_TX_EN; - tegra_spdif_write(spdif, TEGRA_SPDIF_CTRL, spdif->reg_ctrl); -} - -static void tegra_spdif_stop_playback(struct tegra_spdif *spdif) -{ - spdif->reg_ctrl &= ~TEGRA_SPDIF_CTRL_TX_EN; - tegra_spdif_write(spdif, TEGRA_SPDIF_CTRL, spdif->reg_ctrl); -} - -static int tegra_spdif_trigger(struct snd_pcm_substream *substream, int cmd, - struct snd_soc_dai *dai) -{ - struct tegra_spdif *spdif = snd_soc_dai_get_drvdata(dai); - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - case SNDRV_PCM_TRIGGER_RESUME: - if (!spdif->clk_refs) - clk_enable(spdif->clk_spdif_out); - spdif->clk_refs++; - tegra_spdif_start_playback(spdif); - break; - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - case SNDRV_PCM_TRIGGER_SUSPEND: - tegra_spdif_stop_playback(spdif); - spdif->clk_refs--; - if (!spdif->clk_refs) - clk_disable(spdif->clk_spdif_out); - break; - default: - return -EINVAL; - } - - return 0; -} - -static int tegra_spdif_probe(struct snd_soc_dai *dai) -{ - struct tegra_spdif *spdif = snd_soc_dai_get_drvdata(dai); - - dai->capture_dma_data = NULL; - dai->playback_dma_data = &spdif->playback_dma_data; - - return 0; -} - -static const struct snd_soc_dai_ops tegra_spdif_dai_ops = { - .hw_params = tegra_spdif_hw_params, - .trigger = tegra_spdif_trigger, -}; - -static struct snd_soc_dai_driver tegra_spdif_dai = { - .name = DRV_NAME, - .probe = tegra_spdif_probe, - .playback = { - .channels_min = 2, - .channels_max = 2, - .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | - SNDRV_PCM_RATE_48000, - .formats = SNDRV_PCM_FMTBIT_S16_LE, - }, - .ops = &tegra_spdif_dai_ops, -}; - -static __devinit int tegra_spdif_platform_probe(struct platform_device *pdev) -{ - struct tegra_spdif *spdif; - struct resource *mem, *memregion, *dmareq; - int ret; - - spdif = kzalloc(sizeof(struct tegra_spdif), GFP_KERNEL); - if (!spdif) { - dev_err(&pdev->dev, "Can't allocate tegra_spdif\n"); - ret = -ENOMEM; - goto exit; - } - dev_set_drvdata(&pdev->dev, spdif); - - spdif->clk_spdif_out = clk_get(&pdev->dev, "spdif_out"); - if (IS_ERR(spdif->clk_spdif_out)) { - pr_err("Can't retrieve spdif clock\n"); - ret = PTR_ERR(spdif->clk_spdif_out); - goto err_free; - } - - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!mem) { - dev_err(&pdev->dev, "No memory resource\n"); - ret = -ENODEV; - goto err_clk_put; - } - - dmareq = platform_get_resource(pdev, IORESOURCE_DMA, 0); - if (!dmareq) { - dev_err(&pdev->dev, "No DMA resource\n"); - ret = -ENODEV; - goto err_clk_put; - } - - memregion = request_mem_region(mem->start, resource_size(mem), - DRV_NAME); - if (!memregion) { - dev_err(&pdev->dev, "Memory region already claimed\n"); - ret = -EBUSY; - goto err_clk_put; - } - - spdif->regs = ioremap(mem->start, resource_size(mem)); - if (!spdif->regs) { - dev_err(&pdev->dev, "ioremap failed\n"); - ret = -ENOMEM; - goto err_release; - } - - spdif->playback_dma_data.addr = mem->start + TEGRA_SPDIF_DATA_OUT; - spdif->playback_dma_data.wrap = 4; - spdif->playback_dma_data.width = 32; - spdif->playback_dma_data.req_sel = dmareq->start; - - ret = snd_soc_register_dai(&pdev->dev, &tegra_spdif_dai); - if (ret) { - dev_err(&pdev->dev, "Could not register DAI: %d\n", ret); - ret = -ENOMEM; - goto err_unmap; - } - - tegra_spdif_debug_add(spdif); - - return 0; - -err_unmap: - iounmap(spdif->regs); -err_release: - release_mem_region(mem->start, resource_size(mem)); -err_clk_put: - clk_put(spdif->clk_spdif_out); -err_free: - kfree(spdif); -exit: - return ret; -} - -static int __devexit tegra_spdif_platform_remove(struct platform_device *pdev) -{ - struct tegra_spdif *spdif = dev_get_drvdata(&pdev->dev); - struct resource *res; - - snd_soc_unregister_dai(&pdev->dev); - - tegra_spdif_debug_remove(spdif); - - iounmap(spdif->regs); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - release_mem_region(res->start, resource_size(res)); - - clk_put(spdif->clk_spdif_out); - - kfree(spdif); - - return 0; -} - -static struct platform_driver tegra_spdif_driver = { - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - }, - .probe = tegra_spdif_platform_probe, - .remove = __devexit_p(tegra_spdif_platform_remove), -}; - -module_platform_driver(tegra_spdif_driver); - -MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>"); -MODULE_DESCRIPTION("Tegra SPDIF ASoC driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:" DRV_NAME); |