mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-13 22:14:20 +08:00
fb95aae6e6
As diffstat shows we've had again a lot of works done for this cycle: majority of changes are the continued componentization and code refactoring in ASoC, the tree-wide PCM API updates and cleanups and SOF updates while a few ASoC driver updates are seen, too. Here we go, some highlights: Core: - Finally y2038 support landed to ALSA ABI; some ioctls have been extended and lots of tricks were applied - Applying the new managed PCM buffer API to all drivers; the API itself was already merged in 5.5 - The already deprecated dimension support in ALSA control API is dropped completely now - Verification of ALSA control elements to catch API misuses ASoC: - Further code refactorings and moving things to the component level - Lots of updates and improvements on SOF / Intel drivers; now including common HDMI driver and SoundWire support - New driver support for Ingenic JZ4770, Mediatek MT6660, Qualcomm WCD934x and WSA881x, and Realtek RT700, RT711, RT715, RT1011, RT1015 and RT1308 HD-audio: - Improved ring-buffer communications using waitqueue - Drop the superfluous buffer preallocation on x86 Others: - Many code cleanups, mostly constifications over the whole tree - USB-audio: quirks for MOTU, Corsair Virtuoso, Line6 Helix - FireWire: code refactoring for oxfw and dice drivers -----BEGIN PGP SIGNATURE----- iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAl4v7qsOHHRpd2FpQHN1 c2UuZGUACgkQLtJE4w1nLE9s7hAAoeqwRF+WffBaSMZKShDyFD5L7Z/YeXxh2b81 ErnVaSbXmWMhzgx7G7dj3bchkJWYsqAH//j3/AHYCF22slJdeTof0cpqaRgC0qEv eIj9ALu2Hh+z5jJHOlbpcYevtK89frY9zu4Su/5YAfZloUNLqAbl59SNOiS99/hu SR5rF0UCGngHf+pjiBpruQv2hahD5Y0a4rIGMaZB/GAa3p7eQ42koMmIEje/rjF0 bSpiYmmAwGJ62RlTUFCBNlj9w78eUfqrf8SHr91d7zNHUZpHR9GoFswmLGM0UtGS 5gIm+6UkBmTQcqgKhYsLl2eT/PSLVHpbYUeABjP62EqxWpksOl2/fQfrGuVT1Vjm QVoc345dKoKcNxVH1iuVg+/JYsmuPIpSmviFCKbH5IUlTWWyOYzWxZVdrZ/gIyXh fY/vDL2yOdR9mTnHYAfsJ8IB2ABY4pDahC6Dbvh5JoN/vmsND2Wv2l+HIIdLTarj R/n7+Rn6HLQmCJvgIWLniG6FxYxx4gqd/VVVaL7eJKYrcqvQq6VNZ/36Fgh3Ahdi HnKxyer3K7vC8CGM3cNH/Dq/iGTNgTcX6pnhVepl/elSZTMDrxZcWbbA0nPhBe8J 5SWGEstv11OBi/JL3vGdTmV4ceZ/yIBg9pIGg4j0rH3hKT83G7O5E++PixKCmmMc fZPCeAg= =PGgQ -----END PGP SIGNATURE----- Merge tag 'sound-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound updates from Takashi Iwai: "As the diffstat shows we've had again a lot of works done for this cycle: the majority of changes are the continued componentization and code refactoring in ASoC, the tree-wide PCM API updates and cleanups and SOF updates while a few ASoC driver updates are seen, too. Here we go, some highlights: Core: - Finally y2038 support landed to ALSA ABI; some ioctls have been extended and lots of tricks were applied - Applying the new managed PCM buffer API to all drivers; the API itself was already merged in 5.5 - The already deprecated dimension support in ALSA control API is dropped completely now - Verification of ALSA control elements to catch API misuses ASoC: - Further code refactorings and moving things to the component level - Lots of updates and improvements on SOF / Intel drivers; now including common HDMI driver and SoundWire support - New driver support for Ingenic JZ4770, Mediatek MT6660, Qualcomm WCD934x and WSA881x, and Realtek RT700, RT711, RT715, RT1011, RT1015 and RT1308 HD-audio: - Improved ring-buffer communications using waitqueue - Drop the superfluous buffer preallocation on x86 Others: - Many code cleanups, mostly constifications over the whole tree - USB-audio: quirks for MOTU, Corsair Virtuoso, Line6 Helix - FireWire: code refactoring for oxfw and dice drivers" * tag 'sound-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (638 commits) ALSA: usb-audio: add quirks for Line6 Helix devices fw>=2.82 ALSA: hda: Add Clevo W65_67SB the power_save blacklist ASoC: soc-core: remove null_snd_soc_ops ASoC: soc-pcm: add soc_rtd_trigger() ASoC: soc-pcm: add soc_rtd_hw_free() ASoC: soc-pcm: add soc_rtd_hw_params() ASoC: soc-pcm: add soc_rtd_prepare() ASoC: soc-pcm: add soc_rtd_shutdown() ASoC: soc-pcm: add soc_rtd_startup() ASoC: rt1015: add rt1015 amplifier driver ASoC: madera: Correct some kernel doc ASoC: topology: fix soc_tplg_fe_link_create() - link->dobj initialization order ASoC: Intel: skl_hda_dsp_common: Fix global-out-of-bounds bug ASoC: madera: Correct DMIC only input hook ups ALSA: cs46xx: fix spelling mistake "to" -> "too" ALSA: hda - Add docking station support for Lenovo Thinkpad T420s ASoC: Add MediaTek MT6660 Speaker Amp Driver ASoC: dt-bindings: rt5645: add suppliers ASoC: max98090: fix deadlock in max98090_dapm_put_enum_double() ASoC: dapm: add snd_soc_dapm_put_enum_double_locked ...
348 lines
8.2 KiB
C
348 lines
8.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Au1000/Au1500/Au1100 AC97C controller driver for ASoC
|
|
*
|
|
* (c) 2011 Manuel Lauss <manuel.lauss@googlemail.com>
|
|
*
|
|
* based on the old ALSA driver originally written by
|
|
* Charles Eidsness <charles@cooper-street.com>
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/device.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/mutex.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/suspend.h>
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/initval.h>
|
|
#include <sound/soc.h>
|
|
#include <asm/mach-au1x00/au1000.h>
|
|
|
|
#include "psc.h"
|
|
|
|
/* register offsets and bits */
|
|
#define AC97_CONFIG 0x00
|
|
#define AC97_STATUS 0x04
|
|
#define AC97_DATA 0x08
|
|
#define AC97_CMDRESP 0x0c
|
|
#define AC97_ENABLE 0x10
|
|
|
|
#define CFG_RC(x) (((x) & 0x3ff) << 13) /* valid rx slots mask */
|
|
#define CFG_XS(x) (((x) & 0x3ff) << 3) /* valid tx slots mask */
|
|
#define CFG_SG (1 << 2) /* sync gate */
|
|
#define CFG_SN (1 << 1) /* sync control */
|
|
#define CFG_RS (1 << 0) /* acrst# control */
|
|
#define STAT_XU (1 << 11) /* tx underflow */
|
|
#define STAT_XO (1 << 10) /* tx overflow */
|
|
#define STAT_RU (1 << 9) /* rx underflow */
|
|
#define STAT_RO (1 << 8) /* rx overflow */
|
|
#define STAT_RD (1 << 7) /* codec ready */
|
|
#define STAT_CP (1 << 6) /* command pending */
|
|
#define STAT_TE (1 << 4) /* tx fifo empty */
|
|
#define STAT_TF (1 << 3) /* tx fifo full */
|
|
#define STAT_RE (1 << 1) /* rx fifo empty */
|
|
#define STAT_RF (1 << 0) /* rx fifo full */
|
|
#define CMD_SET_DATA(x) (((x) & 0xffff) << 16)
|
|
#define CMD_GET_DATA(x) ((x) & 0xffff)
|
|
#define CMD_READ (1 << 7)
|
|
#define CMD_WRITE (0 << 7)
|
|
#define CMD_IDX(x) ((x) & 0x7f)
|
|
#define EN_D (1 << 1) /* DISable bit */
|
|
#define EN_CE (1 << 0) /* clock enable bit */
|
|
|
|
/* how often to retry failed codec register reads/writes */
|
|
#define AC97_RW_RETRIES 5
|
|
|
|
#define AC97_RATES \
|
|
SNDRV_PCM_RATE_CONTINUOUS
|
|
|
|
#define AC97_FMTS \
|
|
(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE)
|
|
|
|
/* instance data. There can be only one, MacLeod!!!!, fortunately there IS only
|
|
* once AC97C on early Alchemy chips. The newer ones aren't so lucky.
|
|
*/
|
|
static struct au1xpsc_audio_data *ac97c_workdata;
|
|
#define ac97_to_ctx(x) ac97c_workdata
|
|
|
|
static inline unsigned long RD(struct au1xpsc_audio_data *ctx, int reg)
|
|
{
|
|
return __raw_readl(ctx->mmio + reg);
|
|
}
|
|
|
|
static inline void WR(struct au1xpsc_audio_data *ctx, int reg, unsigned long v)
|
|
{
|
|
__raw_writel(v, ctx->mmio + reg);
|
|
wmb();
|
|
}
|
|
|
|
static unsigned short au1xac97c_ac97_read(struct snd_ac97 *ac97,
|
|
unsigned short r)
|
|
{
|
|
struct au1xpsc_audio_data *ctx = ac97_to_ctx(ac97);
|
|
unsigned int tmo, retry;
|
|
unsigned long data;
|
|
|
|
data = ~0;
|
|
retry = AC97_RW_RETRIES;
|
|
do {
|
|
mutex_lock(&ctx->lock);
|
|
|
|
tmo = 6;
|
|
while ((RD(ctx, AC97_STATUS) & STAT_CP) && --tmo)
|
|
udelay(21); /* wait an ac97 frame time */
|
|
if (!tmo) {
|
|
pr_debug("ac97rd timeout #1\n");
|
|
goto next;
|
|
}
|
|
|
|
WR(ctx, AC97_CMDRESP, CMD_IDX(r) | CMD_READ);
|
|
|
|
/* stupid errata: data is only valid for 21us, so
|
|
* poll, Forrest, poll...
|
|
*/
|
|
tmo = 0x10000;
|
|
while ((RD(ctx, AC97_STATUS) & STAT_CP) && --tmo)
|
|
asm volatile ("nop");
|
|
data = RD(ctx, AC97_CMDRESP);
|
|
|
|
if (!tmo)
|
|
pr_debug("ac97rd timeout #2\n");
|
|
|
|
next:
|
|
mutex_unlock(&ctx->lock);
|
|
} while (--retry && !tmo);
|
|
|
|
pr_debug("AC97RD %04x %04lx %d\n", r, data, retry);
|
|
|
|
return retry ? data & 0xffff : 0xffff;
|
|
}
|
|
|
|
static void au1xac97c_ac97_write(struct snd_ac97 *ac97, unsigned short r,
|
|
unsigned short v)
|
|
{
|
|
struct au1xpsc_audio_data *ctx = ac97_to_ctx(ac97);
|
|
unsigned int tmo, retry;
|
|
|
|
retry = AC97_RW_RETRIES;
|
|
do {
|
|
mutex_lock(&ctx->lock);
|
|
|
|
for (tmo = 5; (RD(ctx, AC97_STATUS) & STAT_CP) && tmo; tmo--)
|
|
udelay(21);
|
|
if (!tmo) {
|
|
pr_debug("ac97wr timeout #1\n");
|
|
goto next;
|
|
}
|
|
|
|
WR(ctx, AC97_CMDRESP, CMD_WRITE | CMD_IDX(r) | CMD_SET_DATA(v));
|
|
|
|
for (tmo = 10; (RD(ctx, AC97_STATUS) & STAT_CP) && tmo; tmo--)
|
|
udelay(21);
|
|
if (!tmo)
|
|
pr_debug("ac97wr timeout #2\n");
|
|
next:
|
|
mutex_unlock(&ctx->lock);
|
|
} while (--retry && !tmo);
|
|
|
|
pr_debug("AC97WR %04x %04x %d\n", r, v, retry);
|
|
}
|
|
|
|
static void au1xac97c_ac97_warm_reset(struct snd_ac97 *ac97)
|
|
{
|
|
struct au1xpsc_audio_data *ctx = ac97_to_ctx(ac97);
|
|
|
|
WR(ctx, AC97_CONFIG, ctx->cfg | CFG_SG | CFG_SN);
|
|
msleep(20);
|
|
WR(ctx, AC97_CONFIG, ctx->cfg | CFG_SG);
|
|
WR(ctx, AC97_CONFIG, ctx->cfg);
|
|
}
|
|
|
|
static void au1xac97c_ac97_cold_reset(struct snd_ac97 *ac97)
|
|
{
|
|
struct au1xpsc_audio_data *ctx = ac97_to_ctx(ac97);
|
|
int i;
|
|
|
|
WR(ctx, AC97_CONFIG, ctx->cfg | CFG_RS);
|
|
msleep(500);
|
|
WR(ctx, AC97_CONFIG, ctx->cfg);
|
|
|
|
/* wait for codec ready */
|
|
i = 50;
|
|
while (((RD(ctx, AC97_STATUS) & STAT_RD) == 0) && --i)
|
|
msleep(20);
|
|
if (!i)
|
|
printk(KERN_ERR "ac97c: codec not ready after cold reset\n");
|
|
}
|
|
|
|
/* AC97 controller operations */
|
|
static struct snd_ac97_bus_ops ac97c_bus_ops = {
|
|
.read = au1xac97c_ac97_read,
|
|
.write = au1xac97c_ac97_write,
|
|
.reset = au1xac97c_ac97_cold_reset,
|
|
.warm_reset = au1xac97c_ac97_warm_reset,
|
|
};
|
|
|
|
static int alchemy_ac97c_startup(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct au1xpsc_audio_data *ctx = snd_soc_dai_get_drvdata(dai);
|
|
snd_soc_dai_set_dma_data(dai, substream, &ctx->dmaids[0]);
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_soc_dai_ops alchemy_ac97c_ops = {
|
|
.startup = alchemy_ac97c_startup,
|
|
};
|
|
|
|
static int au1xac97c_dai_probe(struct snd_soc_dai *dai)
|
|
{
|
|
return ac97c_workdata ? 0 : -ENODEV;
|
|
}
|
|
|
|
static struct snd_soc_dai_driver au1xac97c_dai_driver = {
|
|
.name = "alchemy-ac97c",
|
|
.probe = au1xac97c_dai_probe,
|
|
.playback = {
|
|
.rates = AC97_RATES,
|
|
.formats = AC97_FMTS,
|
|
.channels_min = 2,
|
|
.channels_max = 2,
|
|
},
|
|
.capture = {
|
|
.rates = AC97_RATES,
|
|
.formats = AC97_FMTS,
|
|
.channels_min = 2,
|
|
.channels_max = 2,
|
|
},
|
|
.ops = &alchemy_ac97c_ops,
|
|
};
|
|
|
|
static const struct snd_soc_component_driver au1xac97c_component = {
|
|
.name = "au1xac97c",
|
|
};
|
|
|
|
static int au1xac97c_drvprobe(struct platform_device *pdev)
|
|
{
|
|
int ret;
|
|
struct resource *iores, *dmares;
|
|
struct au1xpsc_audio_data *ctx;
|
|
|
|
ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
|
|
if (!ctx)
|
|
return -ENOMEM;
|
|
|
|
mutex_init(&ctx->lock);
|
|
|
|
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
if (!iores)
|
|
return -ENODEV;
|
|
|
|
if (!devm_request_mem_region(&pdev->dev, iores->start,
|
|
resource_size(iores),
|
|
pdev->name))
|
|
return -EBUSY;
|
|
|
|
ctx->mmio = devm_ioremap(&pdev->dev, iores->start,
|
|
resource_size(iores));
|
|
if (!ctx->mmio)
|
|
return -EBUSY;
|
|
|
|
dmares = platform_get_resource(pdev, IORESOURCE_DMA, 0);
|
|
if (!dmares)
|
|
return -EBUSY;
|
|
ctx->dmaids[SNDRV_PCM_STREAM_PLAYBACK] = dmares->start;
|
|
|
|
dmares = platform_get_resource(pdev, IORESOURCE_DMA, 1);
|
|
if (!dmares)
|
|
return -EBUSY;
|
|
ctx->dmaids[SNDRV_PCM_STREAM_CAPTURE] = dmares->start;
|
|
|
|
/* switch it on */
|
|
WR(ctx, AC97_ENABLE, EN_D | EN_CE);
|
|
WR(ctx, AC97_ENABLE, EN_CE);
|
|
|
|
ctx->cfg = CFG_RC(3) | CFG_XS(3);
|
|
WR(ctx, AC97_CONFIG, ctx->cfg);
|
|
|
|
platform_set_drvdata(pdev, ctx);
|
|
|
|
ret = snd_soc_set_ac97_ops(&ac97c_bus_ops);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = snd_soc_register_component(&pdev->dev, &au1xac97c_component,
|
|
&au1xac97c_dai_driver, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ac97c_workdata = ctx;
|
|
return 0;
|
|
}
|
|
|
|
static int au1xac97c_drvremove(struct platform_device *pdev)
|
|
{
|
|
struct au1xpsc_audio_data *ctx = platform_get_drvdata(pdev);
|
|
|
|
snd_soc_unregister_component(&pdev->dev);
|
|
|
|
WR(ctx, AC97_ENABLE, EN_D); /* clock off, disable */
|
|
|
|
ac97c_workdata = NULL; /* MDEV */
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
static int au1xac97c_drvsuspend(struct device *dev)
|
|
{
|
|
struct au1xpsc_audio_data *ctx = dev_get_drvdata(dev);
|
|
|
|
WR(ctx, AC97_ENABLE, EN_D); /* clock off, disable */
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int au1xac97c_drvresume(struct device *dev)
|
|
{
|
|
struct au1xpsc_audio_data *ctx = dev_get_drvdata(dev);
|
|
|
|
WR(ctx, AC97_ENABLE, EN_D | EN_CE);
|
|
WR(ctx, AC97_ENABLE, EN_CE);
|
|
WR(ctx, AC97_CONFIG, ctx->cfg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct dev_pm_ops au1xpscac97_pmops = {
|
|
.suspend = au1xac97c_drvsuspend,
|
|
.resume = au1xac97c_drvresume,
|
|
};
|
|
|
|
#define AU1XPSCAC97_PMOPS (&au1xpscac97_pmops)
|
|
|
|
#else
|
|
|
|
#define AU1XPSCAC97_PMOPS NULL
|
|
|
|
#endif
|
|
|
|
static struct platform_driver au1xac97c_driver = {
|
|
.driver = {
|
|
.name = "alchemy-ac97c",
|
|
.pm = AU1XPSCAC97_PMOPS,
|
|
},
|
|
.probe = au1xac97c_drvprobe,
|
|
.remove = au1xac97c_drvremove,
|
|
};
|
|
|
|
module_platform_driver(au1xac97c_driver);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("Au1000/1500/1100 AC97C ASoC driver");
|
|
MODULE_AUTHOR("Manuel Lauss");
|