[ALSA] hda-intel - Fix ULI M5461 support

HDA Intel driver
Fix and clean up for the support of ULI M5461
- set CORB/RIRB sizes explicitly
- add workarounds for ULI on ia32
- max number of streams depends on the chip type now
- increase the size of BDL

Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_intel.c

@@ -72,7 +72,8 @@ MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
 			 "{ATI, SB450},"
 			 "{VIA, VT8251},"
 			 "{VIA, VT8237A},"
-			 "{SiS, SIS966}}");
+			 "{SiS, SIS966},"
+			 "{ULI, M5461}}");
 MODULE_DESCRIPTION("Intel HDA driver");
 
 #define SFX	"hda-intel: "
@@ -142,9 +143,24 @@ enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
  */
 
 /* max number of SDs */
-#define MAX_ICH6_DEV		8
+/* ICH, ATI and VIA have 4 playback and 4 capture */
+#define ICH6_CAPTURE_INDEX	0
+#define ICH6_NUM_CAPTURE	4
+#define ICH6_PLAYBACK_INDEX	4
+#define ICH6_NUM_PLAYBACK	4
+
+/* ULI has 6 playback and 5 capture */
+#define ULI_CAPTURE_INDEX	0
+#define ULI_NUM_CAPTURE		5
+#define ULI_PLAYBACK_INDEX	5
+#define ULI_NUM_PLAYBACK	6
+
+/* this number is statically defined for simplicity */
+#define MAX_AZX_DEV		16
+
 /* max number of fragments - we may use more if allocating more pages for BDL */
-#define AZX_MAX_FRAG		(PAGE_SIZE / (MAX_ICH6_DEV * 16))
+#define BDL_SIZE		PAGE_ALIGN(8192)
+#define AZX_MAX_FRAG		(BDL_SIZE / (MAX_AZX_DEV * 16))
 /* max buffer size - no h/w limit, you can increase as you like */
 #define AZX_MAX_BUF_SIZE	(1024*1024*1024)
 /* max number of PCM devics per card */
@@ -201,7 +217,6 @@ enum {
 };
 
 /* Defines for ATI HD Audio support in SB450 south bridge */
-#define ATI_SB450_HDAUDIO_PCI_DEVICE_ID     0x437b
 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
 
@@ -259,6 +274,14 @@ struct snd_azx {
 	snd_card_t *card;
 	struct pci_dev *pci;
 
+	/* chip type specific */
+	int driver_type;
+	int playback_streams;
+	int playback_index_offset;
+	int capture_streams;
+	int capture_index_offset;
+	int num_streams;
+
 	/* pci resources */
 	unsigned long addr;
 	void __iomem *remap_addr;
@@ -268,8 +291,8 @@ struct snd_azx {
 	spinlock_t reg_lock;
 	struct semaphore open_mutex;
 
-	/* streams */
-	azx_dev_t azx_dev[MAX_ICH6_DEV];
+	/* streams (x num_streams) */
+	azx_dev_t *azx_dev;
 
 	/* PCM */
 	unsigned int pcm_devs;
@@ -293,6 +316,23 @@ struct snd_azx {
 	unsigned int initialized: 1;
 };
 
+/* driver types */
+enum {
+	AZX_DRIVER_ICH,
+	AZX_DRIVER_ATI,
+	AZX_DRIVER_VIA,
+	AZX_DRIVER_SIS,
+	AZX_DRIVER_ULI,
+};
+
+static char *driver_short_names[] __devinitdata = {
+	[AZX_DRIVER_ICH] = "HDA Intel",
+	[AZX_DRIVER_ATI] = "HDA ATI SB",
+	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
+	[AZX_DRIVER_SIS] = "HDA SIS966",
+	[AZX_DRIVER_ULI] = "HDA ULI M5461"
+};
+
 /*
  * macros for easy use
  */
@@ -361,6 +401,8 @@ static void azx_init_cmd_io(azx_t *chip)
 	azx_writel(chip, CORBLBASE, (u32)chip->corb.addr);
 	azx_writel(chip, CORBUBASE, upper_32bit(chip->corb.addr));
 
+	/* set the corb size to 256 entries (ULI requires explicitly) */
+	azx_writeb(chip, CORBSIZE, 0x02);
 	/* set the corb write pointer to 0 */
 	azx_writew(chip, CORBWP, 0);
 	/* reset the corb hw read pointer */
@@ -374,6 +416,8 @@ static void azx_init_cmd_io(azx_t *chip)
 	azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr);
 	azx_writel(chip, RIRBUBASE, upper_32bit(chip->rirb.addr));
 
+	/* set the rirb size to 256 entries (ULI requires explicitly) */
+	azx_writeb(chip, RIRBSIZE, 0x02);
 	/* reset the rirb hw write pointer */
 	azx_writew(chip, RIRBWP, ICH6_RBRWP_CLR);
 	/* set N=1, get RIRB response interrupt for new entry */
@@ -597,7 +641,7 @@ static void azx_int_disable(azx_t *chip)
 	int i;
 
 	/* disable interrupts in stream descriptor */
-	for (i = 0; i < MAX_ICH6_DEV; i++) {
+	for (i = 0; i < chip->num_streams; i++) {
 		azx_dev_t *azx_dev = &chip->azx_dev[i];
 		azx_sd_writeb(azx_dev, SD_CTL,
 			      azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK);
@@ -617,7 +661,7 @@ static void azx_int_clear(azx_t *chip)
 	int i;
 
 	/* clear stream status */
-	for (i = 0; i < MAX_ICH6_DEV; i++) {
+	for (i = 0; i < chip->num_streams; i++) {
 		azx_dev_t *azx_dev = &chip->azx_dev[i];
 		azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
 	}
@@ -687,8 +731,7 @@ static void azx_init_chip(azx_t *chip)
 	}
 
 	/* For ATI SB450 azalia HD audio, we need to enable snoop */
-	if (chip->pci->vendor == PCI_VENDOR_ID_ATI && 
-	    chip->pci->device == ATI_SB450_HDAUDIO_PCI_DEVICE_ID) {
+	if (chip->driver_type == AZX_DRIVER_ATI) {
 		pci_read_config_byte(chip->pci, ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 
 				     &ati_misc_cntl2);
 		pci_write_config_byte(chip->pci, ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 
@@ -715,7 +758,7 @@ static irqreturn_t azx_interrupt(int irq, void* dev_id, struct pt_regs *regs)
 		return IRQ_NONE;
 	}
 	
-	for (i = 0; i < MAX_ICH6_DEV; i++) {
+	for (i = 0; i < chip->num_streams; i++) {
 		azx_dev = &chip->azx_dev[i];
 		if (status & azx_dev->sd_int_sta_mask) {
 			azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
@@ -880,9 +923,15 @@ static int __devinit azx_codec_create(azx_t *chip, const char *model)
 /* assign a stream for the PCM */
 static inline azx_dev_t *azx_assign_device(azx_t *chip, int stream)
 {
-	int dev, i;
-	dev = stream == SNDRV_PCM_STREAM_PLAYBACK ? 4 : 0;
-	for (i = 0; i < 4; i++, dev++)
+	int dev, i, nums;
+	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		dev = chip->playback_index_offset;
+		nums = chip->playback_streams;
+	} else {
+		dev = chip->capture_index_offset;
+		nums = chip->capture_streams;
+	}
+	for (i = 0; i < nums; i++, dev++)
 		if (! chip->azx_dev[dev].opened) {
 			chip->azx_dev[dev].opened = 1;
 			return &chip->azx_dev[dev];
@@ -1190,7 +1239,7 @@ static int __devinit azx_init_stream(azx_t *chip)
 	/* initialize each stream (aka device)
 	 * assign the starting bdl address to each stream (device) and initialize
 	 */
-	for (i = 0; i < MAX_ICH6_DEV; i++) {
+	for (i = 0; i < chip->num_streams; i++) {
 		unsigned int off = sizeof(u32) * (i * AZX_MAX_FRAG * 4);
 		azx_dev_t *azx_dev = &chip->azx_dev[i];
 		azx_dev->bdl = (u32 *)(chip->bdl.area + off);
@@ -1249,7 +1298,7 @@ static int azx_free(azx_t *chip)
 	if (chip->initialized) {
 		int i;
 
-		for (i = 0; i < MAX_ICH6_DEV; i++)
+		for (i = 0; i < chip->num_streams; i++)
 			azx_stream_stop(chip, &chip->azx_dev[i]);
 
 		/* disable interrupts */
@@ -1265,10 +1314,10 @@ static int azx_free(azx_t *chip)
 
 		/* wait a little for interrupts to finish */
 		msleep(1);
-
-		iounmap(chip->remap_addr);
 	}
 
+	if (chip->remap_addr)
+		iounmap(chip->remap_addr);
 	if (chip->irq >= 0)
 		free_irq(chip->irq, (void*)chip);
 
@@ -1280,6 +1329,7 @@ static int azx_free(azx_t *chip)
 		snd_dma_free_pages(&chip->posbuf);
 	pci_release_regions(chip->pci);
 	pci_disable_device(chip->pci);
+	kfree(chip->azx_dev);
 	kfree(chip);
 
 	return 0;
@@ -1294,7 +1344,8 @@ static int azx_dev_free(snd_device_t *device)
  * constructor
  */
 static int __devinit azx_create(snd_card_t *card, struct pci_dev *pci,
-				int posfix, azx_t **rchip)
+				int posfix, int driver_type,
+				azx_t **rchip)
 {
 	azx_t *chip;
 	int err = 0;
@@ -1320,9 +1371,20 @@ static int __devinit azx_create(snd_card_t *card, struct pci_dev *pci,
 	chip->card = card;
 	chip->pci = pci;
 	chip->irq = -1;
+	chip->driver_type = driver_type;
 
 	chip->position_fix = posfix;
 
+#if BITS_PER_LONG != 64
+	/* Fix up base address on ULI M5461 */
+	if (chip->driver_type == AZX_DRIVER_ULI) {
+		u16 tmp3;
+		pci_read_config_word(pci, 0x40, &tmp3);
+		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
+		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
+	}
+#endif
+
 	if ((err = pci_request_regions(pci, "ICH HD audio")) < 0) {
 		kfree(chip);
 		pci_disable_device(pci);
@@ -1348,16 +1410,37 @@ static int __devinit azx_create(snd_card_t *card, struct pci_dev *pci,
 	pci_set_master(pci);
 	synchronize_irq(chip->irq);
 
+	switch (chip->driver_type) {
+	case AZX_DRIVER_ULI:
+		chip->playback_streams = ULI_NUM_PLAYBACK;
+		chip->capture_streams = ULI_NUM_CAPTURE;
+		chip->playback_index_offset = ULI_PLAYBACK_INDEX;
+		chip->capture_index_offset = ULI_CAPTURE_INDEX;
+		break;
+	default:
+		chip->playback_streams = ICH6_NUM_PLAYBACK;
+		chip->capture_streams = ICH6_NUM_CAPTURE;
+		chip->playback_index_offset = ICH6_PLAYBACK_INDEX;
+		chip->capture_index_offset = ICH6_CAPTURE_INDEX;
+		break;
+	}
+	chip->num_streams = chip->playback_streams + chip->capture_streams;
+	chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev), GFP_KERNEL);
+	if (! chip->azx_dev) {
+		snd_printk(KERN_ERR "cannot malloc azx_dev\n");
+		goto errout;
+	}
+
 	/* allocate memory for the BDL for each stream */
 	if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
-				       PAGE_SIZE, &chip->bdl)) < 0) {
+				       BDL_SIZE, &chip->bdl)) < 0) {
 		snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
 		goto errout;
 	}
 	if (chip->position_fix == POS_FIX_POSBUF) {
 		/* allocate memory for the position buffer */
 		if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
-					       MAX_ICH6_DEV * 8, &chip->posbuf)) < 0) {
+					       chip->num_streams * 8, &chip->posbuf)) < 0) {
 			snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
 			goto errout;
 		}
@@ -1386,6 +1469,10 @@ static int __devinit azx_create(snd_card_t *card, struct pci_dev *pci,
 		goto errout;
 	}
 
+	strcpy(card->driver, "HDA-Intel");
+	strcpy(card->shortname, driver_short_names[chip->driver_type]);
+	sprintf(card->longname, "%s at 0x%lx irq %i", card->shortname, chip->addr, chip->irq);
+
 	*rchip = chip;
 	return 0;
 
@@ -1414,15 +1501,12 @@ static int __devinit azx_probe(struct pci_dev *pci, const struct pci_device_id *
 		return -ENOMEM;
 	}
 
-	if ((err = azx_create(card, pci, position_fix[dev], &chip)) < 0) {
+	if ((err = azx_create(card, pci, position_fix[dev], pci_id->driver_data,
+			      &chip)) < 0) {
 		snd_card_free(card);
 		return err;
 	}
 
-	strcpy(card->driver, "HDA-Intel");
-	strcpy(card->shortname, "HDA Intel");
-	sprintf(card->longname, "%s at 0x%lx irq %i", card->shortname, chip->addr, chip->irq);
-
 	/* create codec instances */
 	if ((err = azx_codec_create(chip, model[dev])) < 0) {
 		snd_card_free(card);
@@ -1463,13 +1547,13 @@ static void __devexit azx_remove(struct pci_dev *pci)
 
 /* PCI IDs */
 static struct pci_device_id azx_ids[] = {
-	{ 0x8086, 0x2668, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* ICH6 */
-	{ 0x8086, 0x27d8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* ICH7 */
-	{ 0x8086, 0x269a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* ESB2 */
-	{ 0x1002, 0x437b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* ATI SB450 */
-	{ 0x1106, 0x3288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* VIA VT8251/VT8237A */
-	{ 0x1039, 0x7502, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* SIS966 */
-	{ 0x10b9, 0x5461, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* ALI 5461? */
+	{ 0x8086, 0x2668, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ICH6 */
+	{ 0x8086, 0x27d8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ICH7 */
+	{ 0x8086, 0x269a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ESB2 */
+	{ 0x1002, 0x437b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ATI }, /* ATI SB450 */
+	{ 0x1106, 0x3288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_VIA }, /* VIA VT8251/VT8237A */
+	{ 0x1039, 0x7502, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_SIS }, /* SIS966 */
+	{ 0x10b9, 0x5461, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ULI }, /* ULI M5461 */
 	{ 0, }
 };
 MODULE_DEVICE_TABLE(pci, azx_ids);