ALSA: cs4236: cs4232 and cs4236 driver merge to solve PnP BIOS detection

cs4232 and cs4236 driver merge to solve PnP BIOS detection.

Also, the patch adds recognition if the chip is cs4236b+
or earlier part. This unifies drivers for both cs4232
and cs4236+ chips. It allows to use the PnP BIOS
detection for the cs4236+ chips. Previously, only
the snd-cs4232 could be detected by the PnP BIOS.

The cs4232+ cards reports two separate PnP BIOS ids.

The patch adds search for the second id to find out
resources assigned to a control port.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

5 files changed, 77 insertions, 106 deletions

diff --git a/sound/isa/Kconfig b/sound/isa/Kconfig
index 5915dc41c0e..4e06bbd9298 100644
--- a/sound/isa/Kconfig
+++ b/sound/isa/Kconfig
@@ -56,8 +56,8 @@ config SND_AD1848
 	  Say Y here to include support for AD1848 (Analog Devices) or
 	  CS4248 (Cirrus Logic - Crystal Semiconductors) chips.
 	  
-	  For newer chips from Cirrus Logic, use the CS4231, CS4232 or
-	  CS4236+ drivers.
+	  For newer chips from Cirrus Logic, use the CS4231 or CS4232+
+	  drivers.
 
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-ad1848.
@@ -114,26 +114,15 @@ config SND_CS4231
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-cs4231.
 
-config SND_CS4232
-	tristate "Generic Cirrus Logic CS4232 driver"
-	select SND_OPL3_LIB
-	select SND_MPU401_UART
-	select SND_WSS_LIB
-	help
-	  Say Y here to include support for CS4232 chips from Cirrus
-	  Logic - Crystal Semiconductors.
-
-	  To compile this driver as a module, choose M here: the module
-	  will be called snd-cs4232.
-
 config SND_CS4236
-	tristate "Generic Cirrus Logic CS4236+ driver"
+	tristate "Generic Cirrus Logic CS4232/CS4236+ driver"
 	select SND_OPL3_LIB
 	select SND_MPU401_UART
 	select SND_WSS_LIB
 	help
-	  Say Y to include support for CS4235,CS4236,CS4237B,CS4238B,
-	  CS4239 chips from Cirrus Logic - Crystal Semiconductors.
+	  Say Y to include support for CS4232,CS4235,CS4236,CS4237B,
+	  CS4238B,CS4239 chips from Cirrus Logic - Crystal
+	  Semiconductors.
 
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-cs4236.
diff --git a/sound/isa/cs423x/Makefile b/sound/isa/cs423x/Makefile
index 5870ca21ab5..732f66cc036 100644
--- a/sound/isa/cs423x/Makefile
+++ b/sound/isa/cs423x/Makefile
@@ -5,11 +5,9 @@
 
 snd-cs4236-lib-objs := cs4236_lib.o
 snd-cs4231-objs := cs4231.o
-snd-cs4232-objs := cs4232.o
 snd-cs4236-objs := cs4236.o
 
 # Toplevel Module Dependency
 obj-$(CONFIG_SND_CS4231) += snd-cs4231.o
-obj-$(CONFIG_SND_CS4232) += snd-cs4232.o
 obj-$(CONFIG_SND_CS4236) += snd-cs4236.o snd-cs4236-lib.o
 
diff --git a/sound/isa/cs423x/cs4232.c b/sound/isa/cs423x/cs4232.c
deleted file mode 100644
index 9fad2e6c0c2..00000000000
--- a/sound/isa/cs423x/cs4232.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define CS4232
-#include "cs4236.c"
diff --git a/sound/isa/cs423x/cs4236.c b/sound/isa/cs423x/cs4236.c
index f7845986f46..a076a6ce807 100644
--- a/sound/isa/cs423x/cs4236.c
+++ b/sound/isa/cs423x/cs4236.c
@@ -33,17 +33,14 @@
 
 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
 MODULE_LICENSE("GPL");
-#ifdef CS4232
-MODULE_DESCRIPTION("Cirrus Logic CS4232");
+MODULE_DESCRIPTION("Cirrus Logic CS4232-9");
 MODULE_SUPPORTED_DEVICE("{{Turtle Beach,TBS-2000},"
 		"{Turtle Beach,Tropez Plus},"
 		"{SIC CrystalWave 32},"
 		"{Hewlett Packard,Omnibook 5500},"
 		"{TerraTec,Maestro 32/96},"
-		"{Philips,PCA70PS}}");
-#else
-MODULE_DESCRIPTION("Cirrus Logic CS4235-9");
-MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4235},"
+		"{Philips,PCA70PS}},"
+		"{{Crystal Semiconductors,CS4235},"
 		"{Crystal Semiconductors,CS4236},"
 		"{Crystal Semiconductors,CS4237},"
 		"{Crystal Semiconductors,CS4238},"
@@ -70,15 +67,11 @@ MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4235},"
 		"{Typhoon Soundsystem,CS4236B},"
 		"{Turtle Beach,Malibu},"
 		"{Unknown,Digital PC 5000 Onboard}}");
-#endif
 
-#ifdef CS4232
-#define IDENT "CS4232"
-#define DEV_NAME "cs4232"
-#else
-#define IDENT "CS4236+"
-#define DEV_NAME "cs4236"
-#endif
+MODULE_ALIAS("snd_cs4232");
+
+#define IDENT "CS4232+"
+#define DEV_NAME "cs4232+"
 
 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
@@ -128,9 +121,7 @@ MODULE_PARM_DESC(dma2, "DMA2 # for " IDENT " driver.");
 #ifdef CONFIG_PNP
 static int isa_registered;
 static int pnpc_registered;
-#ifdef CS4232
 static int pnp_registered;
-#endif
 #endif /* CONFIG_PNP */
 
 struct snd_card_cs4236 {
@@ -145,11 +136,10 @@ struct snd_card_cs4236 {
 
 #ifdef CONFIG_PNP
 
-#ifdef CS4232
 /*
  * PNP BIOS
  */
-static const struct pnp_device_id snd_cs4232_pnpbiosids[] = {
+static const struct pnp_device_id snd_cs423x_pnpbiosids[] = {
 	{ .id = "CSC0100" },
 	{ .id = "CSC0000" },
 	/* Guillemot Turtlebeach something appears to be cs4232 compatible
@@ -157,10 +147,8 @@ static const struct pnp_device_id snd_cs4232_pnpbiosids[] = {
 	{ .id = "GIM0100" },
 	{ .id = "" }
 };
-MODULE_DEVICE_TABLE(pnp, snd_cs4232_pnpbiosids);
-#endif /* CS4232 */
+MODULE_DEVICE_TABLE(pnp, snd_cs423x_pnpbiosids);
 
-#ifdef CS4232
 #define CS423X_ISAPNP_DRIVER	"cs4232_isapnp"
 static struct pnp_card_device_id snd_cs423x_pnpids[] = {
 	/* Philips PCA70PS */
@@ -179,12 +167,6 @@ static struct pnp_card_device_id snd_cs423x_pnpids[] = {
 	{ .id = "CSCf032", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
 	/* Netfinity 3000 on-board soundcard */
 	{ .id = "CSCe825", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC010f" } } },
-	/* --- */
-	{ .id = "" }	/* end */
-};
-#else /* CS4236 */
-#define CS423X_ISAPNP_DRIVER	"cs4236_isapnp"
-static struct pnp_card_device_id snd_cs423x_pnpids[] = {
 	/* Intel Marlin Spike Motherboard - CS4235 */
 	{ .id = "CSC0225", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
 	/* Intel Marlin Spike Motherboard (#2) - CS4235 */
@@ -266,7 +248,6 @@ static struct pnp_card_device_id snd_cs423x_pnpids[] = {
 	/* --- */
 	{ .id = "" }	/* end */
 };
-#endif
 
 MODULE_DEVICE_TABLE(pnp_card, snd_cs423x_pnpids);
 
@@ -323,17 +304,19 @@ static int __devinit snd_cs423x_pnp_init_mpu(int dev, struct pnp_dev *pdev)
 	return 0;
 }
 
-#ifdef CS4232
-static int __devinit snd_card_cs4232_pnp(int dev, struct snd_card_cs4236 *acard,
-					 struct pnp_dev *pdev)
+static int __devinit snd_card_cs423x_pnp(int dev, struct snd_card_cs4236 *acard,
+					 struct pnp_dev *pdev,
+					 struct pnp_dev *cdev)
 {
 	acard->wss = pdev;
 	if (snd_cs423x_pnp_init_wss(dev, acard->wss) < 0)
 		return -EBUSY;
-	cport[dev] = -1;
+	if (cdev)
+		cport[dev] = pnp_port_start(cdev, 0);
+	else
+		cport[dev] = -1;
 	return 0;
 }
-#endif
 
 static int __devinit snd_card_cs423x_pnpc(int dev, struct snd_card_cs4236 *acard,
 					  struct pnp_card_link *card,
@@ -411,40 +394,39 @@ static int __devinit snd_cs423x_probe(struct snd_card *card, int dev)
 			return -EBUSY;
 		}
 
-#ifdef CS4232
 	err = snd_wss_create(card, port[dev], cport[dev],
 			     irq[dev],
 			     dma1[dev], dma2[dev],
-			     WSS_HW_DETECT, 0, &chip);
-	if (err < 0)
-		return err;
-	acard->chip = chip;
-
-	err = snd_wss_pcm(chip, 0, &pcm);
-	if (err < 0)
-		return err;
-
-	err = snd_wss_mixer(chip);
+			     WSS_HW_DETECT3, 0, &chip);
 	if (err < 0)
 		return err;
-
-#else /* CS4236 */
-	err = snd_cs4236_create(card,
-				port[dev], cport[dev],
-				irq[dev], dma1[dev], dma2[dev],
-				WSS_HW_DETECT, 0, &chip);
-	if (err < 0)
-		return err;
-	acard->chip = chip;
-
-	err = snd_cs4236_pcm(chip, 0, &pcm);
-	if (err < 0)
-		return err;
-
-	err = snd_cs4236_mixer(chip);
-	if (err < 0)
-		return err;
-#endif
+	if (chip->hardware & WSS_HW_CS4236B_MASK) {
+		snd_wss_free(chip);
+		err = snd_cs4236_create(card,
+					port[dev], cport[dev],
+					irq[dev], dma1[dev], dma2[dev],
+					WSS_HW_DETECT, 0, &chip);
+		if (err < 0)
+			return err;
+		acard->chip = chip;
+
+		err = snd_cs4236_pcm(chip, 0, &pcm);
+		if (err < 0)
+			return err;
+
+		err = snd_cs4236_mixer(chip);
+		if (err < 0)
+			return err;
+	} else {
+		acard->chip = chip;
+		err = snd_wss_pcm(chip, 0, &pcm);
+		if (err < 0)
+			return err;
+
+		err = snd_wss_mixer(chip);
+		if (err < 0)
+			return err;
+	}
 	strcpy(card->driver, pcm->name);
 	strcpy(card->shortname, pcm->name);
 	sprintf(card->longname, "%s at 0x%lx, irq %i, dma %i",
@@ -579,13 +561,14 @@ static struct isa_driver cs423x_isa_driver = {
 
 
 #ifdef CONFIG_PNP
-#ifdef CS4232
-static int __devinit snd_cs4232_pnpbios_detect(struct pnp_dev *pdev,
+static int __devinit snd_cs423x_pnpbios_detect(struct pnp_dev *pdev,
 					       const struct pnp_device_id *id)
 {
 	static int dev;
 	int err;
 	struct snd_card *card;
+	struct pnp_dev *cdev;
+	char cid[PNP_ID_LEN];
 
 	if (pnp_device_is_isapnp(pdev))
 		return -ENOENT;	/* we have another procedure - card */
@@ -596,10 +579,19 @@ static int __devinit snd_cs4232_pnpbios_detect(struct pnp_dev *pdev,
 	if (dev >= SNDRV_CARDS)
 		return -ENODEV;
 
+	/* prepare second id */
+	strcpy(cid, pdev->id[0].id);
+	cid[5] = '1';
+	cdev = NULL;
+	list_for_each_entry(cdev, &(pdev->protocol->devices), protocol_list) {
+		if (!strcmp(cdev->id[0].id, cid))
+			break;
+	}
 	err = snd_cs423x_card_new(dev, &card);
 	if (err < 0)
 		return err;
-	if ((err = snd_card_cs4232_pnp(dev, card->private_data, pdev)) < 0) {
+	err = snd_card_cs423x_pnp(dev, card->private_data, pdev, cdev);
+	if (err < 0) {
 		printk(KERN_ERR "PnP BIOS detection failed for " IDENT "\n");
 		snd_card_free(card);
 		return err;
@@ -614,35 +606,34 @@ static int __devinit snd_cs4232_pnpbios_detect(struct pnp_dev *pdev,
 	return 0;
 }
 
-static void __devexit snd_cs4232_pnp_remove(struct pnp_dev * pdev)
+static void __devexit snd_cs423x_pnp_remove(struct pnp_dev *pdev)
 {
 	snd_card_free(pnp_get_drvdata(pdev));
 	pnp_set_drvdata(pdev, NULL);
 }
 
 #ifdef CONFIG_PM
-static int snd_cs4232_pnp_suspend(struct pnp_dev *pdev, pm_message_t state)
+static int snd_cs423x_pnp_suspend(struct pnp_dev *pdev, pm_message_t state)
 {
 	return snd_cs423x_suspend(pnp_get_drvdata(pdev));
 }
 
-static int snd_cs4232_pnp_resume(struct pnp_dev *pdev)
+static int snd_cs423x_pnp_resume(struct pnp_dev *pdev)
 {
 	return snd_cs423x_resume(pnp_get_drvdata(pdev));
 }
 #endif
 
-static struct pnp_driver cs4232_pnp_driver = {
-	.name = "cs4232-pnpbios",
-	.id_table = snd_cs4232_pnpbiosids,
-	.probe = snd_cs4232_pnpbios_detect,
-	.remove = __devexit_p(snd_cs4232_pnp_remove),
+static struct pnp_driver cs423x_pnp_driver = {
+	.name = "cs423x-pnpbios",
+	.id_table = snd_cs423x_pnpbiosids,
+	.probe = snd_cs423x_pnpbios_detect,
+	.remove = __devexit_p(snd_cs423x_pnp_remove),
 #ifdef CONFIG_PM
-	.suspend	= snd_cs4232_pnp_suspend,
-	.resume		= snd_cs4232_pnp_resume,
+	.suspend	= snd_cs423x_pnp_suspend,
+	.resume		= snd_cs423x_pnp_resume,
 #endif
 };
-#endif /* CS4232 */
 
 static int __devinit snd_cs423x_pnpc_detect(struct pnp_card_link *pcard,
 					    const struct pnp_card_device_id *pid)
@@ -716,18 +707,14 @@ static int __init alsa_card_cs423x_init(void)
 #ifdef CONFIG_PNP
 	if (!err)
 		isa_registered = 1;
-#ifdef CS4232
-	err = pnp_register_driver(&cs4232_pnp_driver);
+	err = pnp_register_driver(&cs423x_pnp_driver);
 	if (!err)
 		pnp_registered = 1;
-#endif
 	err = pnp_register_card_driver(&cs423x_pnpc_driver);
 	if (!err)
 		pnpc_registered = 1;
-#ifdef CS4232
 	if (pnp_registered)
 		err = 0;
-#endif
 	if (isa_registered)
 		err = 0;
 #endif
@@ -739,10 +726,8 @@ static void __exit alsa_card_cs423x_exit(void)
 #ifdef CONFIG_PNP
 	if (pnpc_registered)
 		pnp_unregister_card_driver(&cs423x_pnpc_driver);
-#ifdef CS4232
 	if (pnp_registered)
-		pnp_unregister_driver(&cs4232_pnp_driver);
-#endif
+		pnp_unregister_driver(&cs423x_pnp_driver);
 	if (isa_registered)
 #endif
 		isa_unregister_driver(&cs423x_isa_driver);
diff --git a/sound/isa/wss/wss_lib.c b/sound/isa/wss/wss_lib.c
index 8de5deda7ad..ac27832b2c6 100644
--- a/sound/isa/wss/wss_lib.c
+++ b/sound/isa/wss/wss_lib.c
@@ -1657,7 +1657,7 @@ static void snd_wss_resume(struct snd_wss *chip)
 }
 #endif /* CONFIG_PM */
 
-static int snd_wss_free(struct snd_wss *chip)
+int snd_wss_free(struct snd_wss *chip)
 {
 	release_and_free_resource(chip->res_port);
 	release_and_free_resource(chip->res_cport);
@@ -1680,6 +1680,7 @@ static int snd_wss_free(struct snd_wss *chip)
 	kfree(chip);
 	return 0;
 }
+EXPORT_SYMBOL(snd_wss_free);
 
 static int snd_wss_dev_free(struct snd_device *device)
 {