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Diffstat (limited to 'sound/soc/txx9/txx9aclc-ac97.c')
-rw-r--r--sound/soc/txx9/txx9aclc-ac97.c230
1 files changed, 0 insertions, 230 deletions
diff --git a/sound/soc/txx9/txx9aclc-ac97.c b/sound/soc/txx9/txx9aclc-ac97.c
deleted file mode 100644
index d9e348444bd0..000000000000
--- a/sound/soc/txx9/txx9aclc-ac97.c
+++ /dev/null
@@ -1,230 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * TXx9 ACLC AC97 driver
- *
- * Copyright (C) 2009 Atsushi Nemoto
- *
- * Based on RBTX49xx patch from CELF patch archive.
- * (C) Copyright TOSHIBA CORPORATION 2004-2006
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/gfp.h>
-#include <asm/mach-tx39xx/ioremap.h> /* for TXX9_DIRECTMAP_BASE */
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-#include "txx9aclc.h"
-
-#define AC97_DIR \
- (SND_SOC_DAIDIR_PLAYBACK | SND_SOC_DAIDIR_CAPTURE)
-
-#define AC97_RATES \
- SNDRV_PCM_RATE_8000_48000
-
-#ifdef __BIG_ENDIAN
-#define AC97_FMTS SNDRV_PCM_FMTBIT_S16_BE
-#else
-#define AC97_FMTS SNDRV_PCM_FMTBIT_S16_LE
-#endif
-
-static DECLARE_WAIT_QUEUE_HEAD(ac97_waitq);
-
-/* REVISIT: How to find txx9aclc_drvdata from snd_ac97? */
-static struct txx9aclc_plat_drvdata *txx9aclc_drvdata;
-
-static int txx9aclc_regready(struct txx9aclc_plat_drvdata *drvdata)
-{
- return __raw_readl(drvdata->base + ACINTSTS) & ACINT_REGACCRDY;
-}
-
-/* AC97 controller reads codec register */
-static unsigned short txx9aclc_ac97_read(struct snd_ac97 *ac97,
- unsigned short reg)
-{
- struct txx9aclc_plat_drvdata *drvdata = txx9aclc_drvdata;
- void __iomem *base = drvdata->base;
- u32 dat;
-
- if (!(__raw_readl(base + ACINTSTS) & ACINT_CODECRDY(ac97->num)))
- return 0xffff;
- reg |= ac97->num << 7;
- dat = (reg << ACREGACC_REG_SHIFT) | ACREGACC_READ;
- __raw_writel(dat, base + ACREGACC);
- __raw_writel(ACINT_REGACCRDY, base + ACINTEN);
- if (!wait_event_timeout(ac97_waitq, txx9aclc_regready(txx9aclc_drvdata), HZ)) {
- __raw_writel(ACINT_REGACCRDY, base + ACINTDIS);
- printk(KERN_ERR "ac97 read timeout (reg %#x)\n", reg);
- dat = 0xffff;
- goto done;
- }
- dat = __raw_readl(base + ACREGACC);
- if (((dat >> ACREGACC_REG_SHIFT) & 0xff) != reg) {
- printk(KERN_ERR "reg mismatch %x with %x\n",
- dat, reg);
- dat = 0xffff;
- goto done;
- }
- dat = (dat >> ACREGACC_DAT_SHIFT) & 0xffff;
-done:
- __raw_writel(ACINT_REGACCRDY, base + ACINTDIS);
- return dat;
-}
-
-/* AC97 controller writes to codec register */
-static void txx9aclc_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
- unsigned short val)
-{
- struct txx9aclc_plat_drvdata *drvdata = txx9aclc_drvdata;
- void __iomem *base = drvdata->base;
-
- __raw_writel(((reg | (ac97->num << 7)) << ACREGACC_REG_SHIFT) |
- (val << ACREGACC_DAT_SHIFT),
- base + ACREGACC);
- __raw_writel(ACINT_REGACCRDY, base + ACINTEN);
- if (!wait_event_timeout(ac97_waitq, txx9aclc_regready(txx9aclc_drvdata), HZ)) {
- printk(KERN_ERR
- "ac97 write timeout (reg %#x)\n", reg);
- }
- __raw_writel(ACINT_REGACCRDY, base + ACINTDIS);
-}
-
-static void txx9aclc_ac97_cold_reset(struct snd_ac97 *ac97)
-{
- struct txx9aclc_plat_drvdata *drvdata = txx9aclc_drvdata;
- void __iomem *base = drvdata->base;
- u32 ready = ACINT_CODECRDY(ac97->num) | ACINT_REGACCRDY;
-
- __raw_writel(ACCTL_ENLINK, base + ACCTLDIS);
- udelay(1);
- __raw_writel(ACCTL_ENLINK, base + ACCTLEN);
- /* wait for primary codec ready status */
- __raw_writel(ready, base + ACINTEN);
- if (!wait_event_timeout(ac97_waitq,
- (__raw_readl(base + ACINTSTS) & ready) == ready,
- HZ)) {
- dev_err(&ac97->dev, "primary codec is not ready "
- "(status %#x)\n",
- __raw_readl(base + ACINTSTS));
- }
- __raw_writel(ACINT_REGACCRDY, base + ACINTSTS);
- __raw_writel(ready, base + ACINTDIS);
-}
-
-/* AC97 controller operations */
-static struct snd_ac97_bus_ops txx9aclc_ac97_ops = {
- .read = txx9aclc_ac97_read,
- .write = txx9aclc_ac97_write,
- .reset = txx9aclc_ac97_cold_reset,
-};
-
-static irqreturn_t txx9aclc_ac97_irq(int irq, void *dev_id)
-{
- struct txx9aclc_plat_drvdata *drvdata = dev_id;
- void __iomem *base = drvdata->base;
-
- __raw_writel(__raw_readl(base + ACINTMSTS), base + ACINTDIS);
- wake_up(&ac97_waitq);
- return IRQ_HANDLED;
-}
-
-static int txx9aclc_ac97_probe(struct snd_soc_dai *dai)
-{
- txx9aclc_drvdata = snd_soc_dai_get_drvdata(dai);
- return 0;
-}
-
-static int txx9aclc_ac97_remove(struct snd_soc_dai *dai)
-{
- struct txx9aclc_plat_drvdata *drvdata = snd_soc_dai_get_drvdata(dai);
-
- /* disable AC-link */
- __raw_writel(ACCTL_ENLINK, drvdata->base + ACCTLDIS);
- txx9aclc_drvdata = NULL;
- return 0;
-}
-
-static struct snd_soc_dai_driver txx9aclc_ac97_dai = {
- .probe = txx9aclc_ac97_probe,
- .remove = txx9aclc_ac97_remove,
- .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,
- },
-};
-
-static const struct snd_soc_component_driver txx9aclc_ac97_component = {
- .name = "txx9aclc-ac97",
-};
-
-static int txx9aclc_ac97_dev_probe(struct platform_device *pdev)
-{
- struct txx9aclc_plat_drvdata *drvdata;
- struct resource *r;
- int err;
- int irq;
-
- irq = platform_get_irq(pdev, 0);
- if (irq < 0)
- return irq;
-
- drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL);
- if (!drvdata)
- return -ENOMEM;
-
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- drvdata->base = devm_ioremap_resource(&pdev->dev, r);
- if (IS_ERR(drvdata->base))
- return PTR_ERR(drvdata->base);
-
- platform_set_drvdata(pdev, drvdata);
- drvdata->physbase = r->start;
- if (sizeof(drvdata->physbase) > sizeof(r->start) &&
- r->start >= TXX9_DIRECTMAP_BASE &&
- r->start < TXX9_DIRECTMAP_BASE + 0x400000)
- drvdata->physbase |= 0xf00000000ull;
- err = devm_request_irq(&pdev->dev, irq, txx9aclc_ac97_irq,
- 0, dev_name(&pdev->dev), drvdata);
- if (err < 0)
- return err;
-
- err = snd_soc_set_ac97_ops(&txx9aclc_ac97_ops);
- if (err < 0)
- return err;
-
- return devm_snd_soc_register_component(&pdev->dev, &txx9aclc_ac97_component,
- &txx9aclc_ac97_dai, 1);
-}
-
-static int txx9aclc_ac97_dev_remove(struct platform_device *pdev)
-{
- snd_soc_set_ac97_ops(NULL);
- return 0;
-}
-
-static struct platform_driver txx9aclc_ac97_driver = {
- .probe = txx9aclc_ac97_dev_probe,
- .remove = txx9aclc_ac97_dev_remove,
- .driver = {
- .name = "txx9aclc-ac97",
- },
-};
-
-module_platform_driver(txx9aclc_ac97_driver);
-
-MODULE_AUTHOR("Atsushi Nemoto <anemo@mba.ocn.ne.jp>");
-MODULE_DESCRIPTION("TXx9 ACLC AC97 driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:txx9aclc-ac97");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.