ALSA: hda - Pass bus io_ops directly from the top-level driver

One less redirection again.  This also requires the change of the call
order in the toplevel divers.  Namely, the bus has to be created at
first before other initializations since the memory allocation ops are
called through bus object now.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_codec.c

@@ -516,6 +516,7 @@ static int snd_hda_bus_dev_disconnect(struct snd_device *device)
  */
 int snd_hda_bus_new(struct snd_card *card,
 		    const struct hdac_bus_ops *ops,
+		    const struct hdac_io_ops *io_ops,
 		    struct hda_bus **busp)
 {
 	struct hda_bus *bus;
@@ -532,7 +533,7 @@ int snd_hda_bus_new(struct snd_card *card,
 	if (!bus)
 		return -ENOMEM;
 
-	err = snd_hdac_bus_init(&bus->core, card->dev, ops, NULL);
+	err = snd_hdac_bus_init(&bus->core, card->dev, ops, io_ops);
 	if (err < 0) {
 		kfree(bus);
 		return err;

sound/pci/hda/hda_codec.h

@@ -328,6 +328,7 @@ struct hda_codec {
  */
 int snd_hda_bus_new(struct snd_card *card,
 		    const struct hdac_bus_ops *ops,
+		    const struct hdac_io_ops *io_ops,
 		    struct hda_bus **busp);
 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
 		      unsigned int codec_addr, struct hda_codec **codecp);

sound/pci/hda/hda_controller.c

@@ -985,8 +985,8 @@ static int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
 static int azx_alloc_cmd_io(struct azx *chip)
 {
 	/* single page (at least 4096 bytes) must suffice for both ringbuffes */
-	return chip->ops->dma_alloc_pages(chip, SNDRV_DMA_TYPE_DEV,
-					  PAGE_SIZE, &chip->rb);
+	return chip->io_ops->dma_alloc_pages(azx_bus(chip), SNDRV_DMA_TYPE_DEV,
+					     PAGE_SIZE, &chip->rb);
 }
 
 static void azx_init_cmd_io(struct azx *chip)
@@ -1396,8 +1396,8 @@ static int azx_load_dsp_prepare(struct hda_bus *bus, unsigned int format,
 	azx_dev->locked = 1;
 	spin_unlock_irq(&chip->reg_lock);
 
-	err = chip->ops->dma_alloc_pages(chip, SNDRV_DMA_TYPE_DEV_SG,
-					 byte_size, bufp);
+	err = chip->io_ops->dma_alloc_pages(&bus->core, SNDRV_DMA_TYPE_DEV_SG,
+					    byte_size, bufp);
 	if (err < 0)
 		goto err_alloc;
 
@@ -1422,7 +1422,7 @@ static int azx_load_dsp_prepare(struct hda_bus *bus, unsigned int format,
 	return azx_dev->stream_tag;
 
  error:
-	chip->ops->dma_free_pages(chip, bufp);
+	chip->io_ops->dma_free_pages(&bus->core, bufp);
  err_alloc:
 	spin_lock_irq(&chip->reg_lock);
 	if (azx_dev->opened)
@@ -1464,7 +1464,7 @@ static void azx_load_dsp_cleanup(struct hda_bus *bus,
 	azx_dev->period_bytes = 0;
 	azx_dev->format_val = 0;
 
-	chip->ops->dma_free_pages(chip, dmab);
+	chip->io_ops->dma_free_pages(&bus->core, dmab);
 	dmab->area = NULL;
 
 	spin_lock_irq(&chip->reg_lock);
@@ -1483,14 +1483,14 @@ int azx_alloc_stream_pages(struct azx *chip)
 	for (i = 0; i < chip->num_streams; i++) {
 		dsp_lock_init(&chip->azx_dev[i]);
 		/* allocate memory for the BDL for each stream */
-		err = chip->ops->dma_alloc_pages(chip, SNDRV_DMA_TYPE_DEV,
+		err = chip->io_ops->dma_alloc_pages(azx_bus(chip), SNDRV_DMA_TYPE_DEV,
 						 BDL_SIZE,
 						 &chip->azx_dev[i].bdl);
 		if (err < 0)
 			return -ENOMEM;
 	}
 	/* allocate memory for the position buffer */
-	err = chip->ops->dma_alloc_pages(chip, SNDRV_DMA_TYPE_DEV,
+	err = chip->io_ops->dma_alloc_pages(azx_bus(chip), SNDRV_DMA_TYPE_DEV,
 					 chip->num_streams * 8, &chip->posbuf);
 	if (err < 0)
 		return -ENOMEM;
@@ -1509,13 +1509,13 @@ void azx_free_stream_pages(struct azx *chip)
 	if (chip->azx_dev) {
 		for (i = 0; i < chip->num_streams; i++)
 			if (chip->azx_dev[i].bdl.area)
-				chip->ops->dma_free_pages(
-					chip, &chip->azx_dev[i].bdl);
+				chip->io_ops->dma_free_pages(azx_bus(chip),
+							     &chip->azx_dev[i].bdl);
 	}
 	if (chip->rb.area)
-		chip->ops->dma_free_pages(chip, &chip->rb);
+		chip->io_ops->dma_free_pages(azx_bus(chip), &chip->rb);
 	if (chip->posbuf.area)
-		chip->ops->dma_free_pages(chip, &chip->posbuf);
+		chip->io_ops->dma_free_pages(azx_bus(chip), &chip->posbuf);
 }
 EXPORT_SYMBOL_GPL(azx_free_stream_pages);
 
@@ -1834,7 +1834,7 @@ int azx_bus_create(struct azx *chip, const char *model)
 	struct hda_bus *bus;
 	int err;
 
-	err = snd_hda_bus_new(chip->card, &bus_core_ops, &bus);
+	err = snd_hda_bus_new(chip->card, &bus_core_ops, chip->io_ops, &bus);
 	if (err < 0)
 		return err;
 

sound/pci/hda/hda_controller.h

@@ -125,21 +125,8 @@ struct azx;
 
 /* Functions to read/write to hda registers. */
 struct hda_controller_ops {
-	/* Register Access */
-	void (*reg_writel)(u32 value, u32 __iomem *addr);
-	u32 (*reg_readl)(u32 __iomem *addr);
-	void (*reg_writew)(u16 value, u16 __iomem *addr);
-	u16 (*reg_readw)(u16 __iomem *addr);
-	void (*reg_writeb)(u8 value, u8 __iomem *addr);
-	u8 (*reg_readb)(u8 __iomem *addr);
 	/* Disable msi if supported, PCI only */
 	int (*disable_msi_reset_irq)(struct azx *);
-	/* Allocation ops */
-	int (*dma_alloc_pages)(struct azx *chip,
-			       int type,
-			       size_t size,
-			       struct snd_dma_buffer *buf);
-	void (*dma_free_pages)(struct azx *chip, struct snd_dma_buffer *buf);
 	int (*substream_alloc_pages)(struct azx *chip,
 				     struct snd_pcm_substream *substream,
 				     size_t size);
@@ -179,6 +166,7 @@ struct azx {
 
 	/* Register interaction. */
 	const struct hda_controller_ops *ops;
+	const struct hdac_io_ops *io_ops;
 
 	/* position adjustment callbacks */
 	azx_get_pos_callback_t get_position[2];
@@ -239,6 +227,8 @@ struct azx {
 #endif
 };
 
+#define azx_bus(chip)	(&(chip)->bus->core)
+
 #ifdef CONFIG_X86
 #define azx_snoop(chip)		((chip)->snoop)
 #else
@@ -250,30 +240,30 @@ struct azx {
  */
 
 #define azx_writel(chip, reg, value) \
-	((chip)->ops->reg_writel(value, (chip)->remap_addr + AZX_REG_##reg))
+	((chip)->io_ops->reg_writel(value, (chip)->remap_addr + AZX_REG_##reg))
 #define azx_readl(chip, reg) \
-	((chip)->ops->reg_readl((chip)->remap_addr + AZX_REG_##reg))
+	((chip)->io_ops->reg_readl((chip)->remap_addr + AZX_REG_##reg))
 #define azx_writew(chip, reg, value) \
-	((chip)->ops->reg_writew(value, (chip)->remap_addr + AZX_REG_##reg))
+	((chip)->io_ops->reg_writew(value, (chip)->remap_addr + AZX_REG_##reg))
 #define azx_readw(chip, reg) \
-	((chip)->ops->reg_readw((chip)->remap_addr + AZX_REG_##reg))
+	((chip)->io_ops->reg_readw((chip)->remap_addr + AZX_REG_##reg))
 #define azx_writeb(chip, reg, value) \
-	((chip)->ops->reg_writeb(value, (chip)->remap_addr + AZX_REG_##reg))
+	((chip)->io_ops->reg_writeb(value, (chip)->remap_addr + AZX_REG_##reg))
 #define azx_readb(chip, reg) \
-	((chip)->ops->reg_readb((chip)->remap_addr + AZX_REG_##reg))
+	((chip)->io_ops->reg_readb((chip)->remap_addr + AZX_REG_##reg))
 
 #define azx_sd_writel(chip, dev, reg, value) \
-	((chip)->ops->reg_writel(value, (dev)->sd_addr + AZX_REG_##reg))
+	((chip)->io_ops->reg_writel(value, (dev)->sd_addr + AZX_REG_##reg))
 #define azx_sd_readl(chip, dev, reg) \
-	((chip)->ops->reg_readl((dev)->sd_addr + AZX_REG_##reg))
+	((chip)->io_ops->reg_readl((dev)->sd_addr + AZX_REG_##reg))
 #define azx_sd_writew(chip, dev, reg, value) \
-	((chip)->ops->reg_writew(value, (dev)->sd_addr + AZX_REG_##reg))
+	((chip)->io_ops->reg_writew(value, (dev)->sd_addr + AZX_REG_##reg))
 #define azx_sd_readw(chip, dev, reg) \
-	((chip)->ops->reg_readw((dev)->sd_addr + AZX_REG_##reg))
+	((chip)->io_ops->reg_readw((dev)->sd_addr + AZX_REG_##reg))
 #define azx_sd_writeb(chip, dev, reg, value) \
-	((chip)->ops->reg_writeb(value, (dev)->sd_addr + AZX_REG_##reg))
+	((chip)->io_ops->reg_writeb(value, (dev)->sd_addr + AZX_REG_##reg))
 #define azx_sd_readb(chip, dev, reg) \
-	((chip)->ops->reg_readb((dev)->sd_addr + AZX_REG_##reg))
+	((chip)->io_ops->reg_readb((dev)->sd_addr + AZX_REG_##reg))
 
 #define azx_has_pm_runtime(chip) \
 	(!AZX_DCAPS_PM_RUNTIME || ((chip)->driver_caps & AZX_DCAPS_PM_RUNTIME))

sound/pci/hda/hda_intel.c

@@ -1365,9 +1365,11 @@ static void azx_probe_work(struct work_struct *work)
 /*
  * constructor
  */
+static const struct hdac_io_ops pci_hda_io_ops;
+static const struct hda_controller_ops pci_hda_ops;
+
 static int azx_create(struct snd_card *card, struct pci_dev *pci,
 		      int dev, unsigned int driver_caps,
-		      const struct hda_controller_ops *hda_ops,
 		      struct azx **rchip)
 {
 	static struct snd_device_ops ops = {
@@ -1394,7 +1396,8 @@ static int azx_create(struct snd_card *card, struct pci_dev *pci,
 	mutex_init(&chip->open_mutex);
 	chip->card = card;
 	chip->pci = pci;
-	chip->ops = hda_ops;
+	chip->ops = &pci_hda_ops;
+	chip->io_ops = &pci_hda_io_ops;
 	chip->irq = -1;
 	chip->driver_caps = driver_caps;
 	chip->driver_type = driver_caps & 0xff;
@@ -1681,15 +1684,16 @@ static int disable_msi_reset_irq(struct azx *chip)
 }
 
 /* DMA page allocation helpers.  */
-static int dma_alloc_pages(struct azx *chip,
+static int dma_alloc_pages(struct hdac_bus *bus,
 			   int type,
 			   size_t size,
 			   struct snd_dma_buffer *buf)
 {
+	struct azx *chip = to_hda_bus(bus)->private_data;
 	int err;
 
 	err = snd_dma_alloc_pages(type,
-				  chip->card->dev,
+				  bus->dev,
 				  size, buf);
 	if (err < 0)
 		return err;
@@ -1697,8 +1701,10 @@ static int dma_alloc_pages(struct azx *chip,
 	return 0;
 }
 
-static void dma_free_pages(struct azx *chip, struct snd_dma_buffer *buf)
+static void dma_free_pages(struct hdac_bus *bus, struct snd_dma_buffer *buf)
 {
+	struct azx *chip = to_hda_bus(bus)->private_data;
+
 	mark_pages_wc(chip, buf, false);
 	snd_dma_free_pages(buf);
 }
@@ -1740,16 +1746,19 @@ static void pcm_mmap_prepare(struct snd_pcm_substream *substream,
 #endif
 }
 
-static const struct hda_controller_ops pci_hda_ops = {
+static const struct hdac_io_ops pci_hda_io_ops = {
 	.reg_writel = pci_azx_writel,
 	.reg_readl = pci_azx_readl,
 	.reg_writew = pci_azx_writew,
 	.reg_readw = pci_azx_readw,
 	.reg_writeb = pci_azx_writeb,
 	.reg_readb = pci_azx_readb,
-	.disable_msi_reset_irq = disable_msi_reset_irq,
 	.dma_alloc_pages = dma_alloc_pages,
 	.dma_free_pages = dma_free_pages,
+};
+
+static const struct hda_controller_ops pci_hda_ops = {
+	.disable_msi_reset_irq = disable_msi_reset_irq,
 	.substream_alloc_pages = substream_alloc_pages,
 	.substream_free_pages = substream_free_pages,
 	.pcm_mmap_prepare = pcm_mmap_prepare,
@@ -1780,8 +1789,7 @@ static int azx_probe(struct pci_dev *pci,
 		return err;
 	}
 
-	err = azx_create(card, pci, dev, pci_id->driver_data,
-			 &pci_hda_ops, &chip);
+	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
 	if (err < 0)
 		goto out_free;
 	card->private_data = chip;
@@ -1862,6 +1870,10 @@ static int azx_probe_continue(struct azx *chip)
 #endif
 	}
 
+	err = azx_bus_create(chip, model[dev]);
+	if (err < 0)
+		goto out_free;
+
 	err = azx_first_init(chip);
 	if (err < 0)
 		goto out_free;
@@ -1871,10 +1883,6 @@ static int azx_probe_continue(struct azx *chip)
 #endif
 
 	/* create codec instances */
-	err = azx_bus_create(chip, model[dev]);
-	if (err < 0)
-		goto out_free;
-
 	err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
 	if (err < 0)
 		goto out_free;

sound/pci/hda/hda_tegra.c

@@ -87,13 +87,13 @@ MODULE_PARM_DESC(power_save,
 /*
  * DMA page allocation ops.
  */
-static int dma_alloc_pages(struct azx *chip, int type, size_t size,
+static int dma_alloc_pages(struct hdac_bus *bus, int type, size_t size,
 			   struct snd_dma_buffer *buf)
 {
-	return snd_dma_alloc_pages(type, chip->card->dev, size, buf);
+	return snd_dma_alloc_pages(type, bus->dev, size, buf);
 }
 
-static void dma_free_pages(struct azx *chip, struct snd_dma_buffer *buf)
+static void dma_free_pages(struct hdac_bus *bus, struct snd_dma_buffer *buf)
 {
 	snd_dma_free_pages(buf);
 }
@@ -173,7 +173,7 @@ static u8 hda_tegra_readb(u8 *addr)
 	return (v >> shift) & 0xff;
 }
 
-static const struct hda_controller_ops hda_tegra_ops = {
+static const struct hdac_io_ops hda_tegra_io_ops = {
 	.reg_writel = hda_tegra_writel,
 	.reg_readl = hda_tegra_readl,
 	.reg_writew = hda_tegra_writew,
@@ -182,6 +182,9 @@ static const struct hda_controller_ops hda_tegra_ops = {
 	.reg_readb = hda_tegra_readb,
 	.dma_alloc_pages = dma_alloc_pages,
 	.dma_free_pages = dma_free_pages,
+};
+
+static const struct hda_controller_ops hda_tegra_ops = {
 	.substream_alloc_pages = substream_alloc_pages,
 	.substream_free_pages = substream_free_pages,
 };
@@ -409,7 +412,6 @@ static int hda_tegra_first_init(struct azx *chip, struct platform_device *pdev)
  */
 static int hda_tegra_create(struct snd_card *card,
 			    unsigned int driver_caps,
-			    const struct hda_controller_ops *hda_ops,
 			    struct hda_tegra *hda)
 {
 	static struct snd_device_ops ops = {
@@ -423,7 +425,8 @@ static int hda_tegra_create(struct snd_card *card,
 	spin_lock_init(&chip->reg_lock);
 	mutex_init(&chip->open_mutex);
 	chip->card = card;
-	chip->ops = hda_ops;
+	chip->ops = &hda_tegra_ops;
+	chip->io_ops = &hda_tegra_io_ops;
 	chip->irq = -1;
 	chip->driver_caps = driver_caps;
 	chip->driver_type = driver_caps & 0xff;
@@ -471,7 +474,11 @@ static int hda_tegra_probe(struct platform_device *pdev)
 		return err;
 	}
 
-	err = hda_tegra_create(card, driver_flags, &hda_tegra_ops, hda);
+	err = azx_bus_create(chip, NULL);
+	if (err < 0)
+		goto out_free;
+
+	err = hda_tegra_create(card, driver_flags, hda);
 	if (err < 0)
 		goto out_free;
 	card->private_data = chip;
@@ -483,10 +490,6 @@ static int hda_tegra_probe(struct platform_device *pdev)
 		goto out_free;
 
 	/* create codec instances */
-	err = azx_bus_create(chip, NULL);
-	if (err < 0)
-		goto out_free;
-
 	err = azx_probe_codecs(chip, 0);
 	if (err < 0)
 		goto out_free;