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Message-Id: <201207170916.44277.linux@rainbow-software.org>
Date: Tue, 17 Jul 2012 09:16:44 +0200
From: Ondrej Zary <linux@...nbow-software.org>
To: alsa-devel@...a-project.org
Cc: Kernel development list <linux-kernel@...r.kernel.org>
Subject: [PATCH] snd-opti9xx: Implement suspend/resume
Implement suspend/resume support for Opti 92x and 93x chips.
Tested with Opti 929A+AD1848 and Opti 931.
Signed-off-by: Ondrej Zary <linux@...nbow-software.org>
--- a/sound/isa/opti9xx/opti92x-ad1848.c
+++ b/sound/isa/opti9xx/opti92x-ad1848.c
@@ -136,8 +136,8 @@ struct snd_opti9xx {
#ifdef OPTi93X
unsigned long mc_indir_index;
struct resource *res_mc_indir;
- struct snd_wss *codec;
#endif /* OPTi93X */
+ struct snd_wss *codec;
unsigned long pwd_reg;
spinlock_t lock;
@@ -870,9 +870,7 @@ static int __devinit snd_opti9xx_probe(struct snd_card *card)
&codec);
if (error < 0)
return error;
-#ifdef OPTi93X
chip->codec = codec;
-#endif
error = snd_wss_pcm(codec, 0, &pcm);
if (error < 0)
return error;
@@ -1053,11 +1051,55 @@ static int __devexit snd_opti9xx_isa_remove(struct device *devptr,
return 0;
}
+#ifdef CONFIG_PM
+static int snd_opti9xx_suspend(struct snd_card *card)
+{
+ struct snd_opti9xx *chip = card->private_data;
+
+ snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+ chip->codec->suspend(chip->codec);
+ return 0;
+}
+
+static int snd_opti9xx_resume(struct snd_card *card)
+{
+ struct snd_opti9xx *chip = card->private_data;
+ int error, xdma2;
+#if defined(CS4231) || defined(OPTi93X)
+ xdma2 = dma2;
+#else
+ xdma2 = -1;
+#endif
+
+ error = snd_opti9xx_configure(chip, port, irq, dma1, xdma2,
+ mpu_port, mpu_irq);
+ if (error)
+ return error;
+ chip->codec->resume(chip->codec);
+ snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+ return 0;
+}
+
+static int snd_opti9xx_isa_suspend(struct device *dev, unsigned int n,
+ pm_message_t state)
+{
+ return snd_opti9xx_suspend(dev_get_drvdata(dev));
+}
+
+static int snd_opti9xx_isa_resume(struct device *dev, unsigned int n)
+{
+ return snd_opti9xx_resume(dev_get_drvdata(dev));
+}
+#endif
+
static struct isa_driver snd_opti9xx_driver = {
.match = snd_opti9xx_isa_match,
.probe = snd_opti9xx_isa_probe,
.remove = __devexit_p(snd_opti9xx_isa_remove),
- /* FIXME: suspend/resume */
+#ifdef CONFIG_PM
+ .suspend = snd_opti9xx_isa_suspend,
+ .resume = snd_opti9xx_isa_resume,
+#endif
.driver = {
.name = DEV_NAME
},
@@ -1123,12 +1165,29 @@ static void __devexit snd_opti9xx_pnp_remove(struct pnp_card_link * pcard)
snd_opti9xx_pnp_is_probed = 0;
}
+#ifdef CONFIG_PM
+static int snd_opti9xx_pnp_suspend(struct pnp_card_link *pcard,
+ pm_message_t state)
+{
+ return snd_opti9xx_suspend(pnp_get_card_drvdata(pcard));
+}
+
+static int snd_opti9xx_pnp_resume(struct pnp_card_link *pcard)
+{
+ return snd_opti9xx_resume(pnp_get_card_drvdata(pcard));
+}
+#endif
+
static struct pnp_card_driver opti9xx_pnpc_driver = {
.flags = PNP_DRIVER_RES_DISABLE,
.name = "opti9xx",
.id_table = snd_opti9xx_pnpids,
.probe = snd_opti9xx_pnp_probe,
.remove = __devexit_p(snd_opti9xx_pnp_remove),
+#ifdef CONFIG_PM
+ .suspend = snd_opti9xx_pnp_suspend,
+ .resume = snd_opti9xx_pnp_resume,
+#endif
};
#endif
--
Ondrej Zary
--
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