A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 11:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

Merge branch 'topic/hda-bus-ops-cleanup' into for-next

Browse source 
Pull HD-audio bus ops cleanups.

Signed-off-by: Takashi Iwai <[email protected]>
This commit is contained in:
Takashi Iwai 2019-08-08 22:35:44 +02:00
commit 3a76a41ffb
18 changed files with 107 additions and 371 deletions
Download patch file Download diff file Expand all files Collapse all files

3
sound/hda/Kconfig
View file

@ -6,6 +6,9 @@ config SND_HDA_CORE
config SND_HDA_DSP_LOADER
bool
config SND_HDA_ALIGNED_MMIO
bool
config SND_HDA_COMPONENT
bool

60
sound/hda/ext/hdac_ext_bus.c
View file

@ -17,80 +17,22 @@
MODULE_DESCRIPTION("HDA extended core");
MODULE_LICENSE("GPL v2");
static void hdac_ext_writel(u32 value, u32 __iomem *addr)
{
writel(value, addr);
}
static u32 hdac_ext_readl(u32 __iomem *addr)
{
return readl(addr);
}
static void hdac_ext_writew(u16 value, u16 __iomem *addr)
{
writew(value, addr);
}
static u16 hdac_ext_readw(u16 __iomem *addr)
{
return readw(addr);
}
static void hdac_ext_writeb(u8 value, u8 __iomem *addr)
{
writeb(value, addr);
}
static u8 hdac_ext_readb(u8 __iomem *addr)
{
return readb(addr);
}
static int hdac_ext_dma_alloc_pages(struct hdac_bus *bus, int type,
size_t size, struct snd_dma_buffer *buf)
{
return snd_dma_alloc_pages(type, bus->dev, size, buf);
}
static void hdac_ext_dma_free_pages(struct hdac_bus *bus, struct snd_dma_buffer *buf)
{
snd_dma_free_pages(buf);
}
static const struct hdac_io_ops hdac_ext_default_io = {
.reg_writel = hdac_ext_writel,
.reg_readl = hdac_ext_readl,
.reg_writew = hdac_ext_writew,
.reg_readw = hdac_ext_readw,
.reg_writeb = hdac_ext_writeb,
.reg_readb = hdac_ext_readb,
.dma_alloc_pages = hdac_ext_dma_alloc_pages,
.dma_free_pages = hdac_ext_dma_free_pages,
};
/**
* snd_hdac_ext_bus_init - initialize a HD-audio extended bus
* @ebus: the pointer to extended bus object
* @dev: device pointer
* @ops: bus verb operators
* @io_ops: lowlevel I/O operators, can be NULL. If NULL core will use
* default ops
*
* Returns 0 if successful, or a negative error code.
*/
int snd_hdac_ext_bus_init(struct hdac_bus *bus, struct device *dev,
const struct hdac_bus_ops *ops,
const struct hdac_io_ops *io_ops,
const struct hdac_ext_bus_ops *ext_ops)
{
int ret;
/* check if io ops are provided, if not load the defaults */
if (io_ops == NULL)
io_ops = &hdac_ext_default_io;
ret = snd_hdac_bus_init(bus, dev, ops, io_ops);
ret = snd_hdac_bus_init(bus, dev, ops);
if (ret < 0)
return ret;

36
sound/hda/hdac_bus.c
View file

@ -19,13 +19,11 @@ static const struct hdac_bus_ops default_ops = {
* snd_hdac_bus_init - initialize a HD-audio bas bus
* @bus: the pointer to bus object
* @ops: bus verb operators
* @io_ops: lowlevel I/O operators
*
* Returns 0 if successful, or a negative error code.
*/
int snd_hdac_bus_init(struct hdac_bus *bus, struct device *dev,
const struct hdac_bus_ops *ops,
const struct hdac_io_ops *io_ops)
const struct hdac_bus_ops *ops)
{
memset(bus, 0, sizeof(*bus));
bus->dev = dev;
@ -33,7 +31,7 @@ int snd_hdac_bus_init(struct hdac_bus *bus, struct device *dev,
bus->ops = ops;
else
bus->ops = &default_ops;
bus->io_ops = io_ops;
bus->dma_type = SNDRV_DMA_TYPE_DEV;
INIT_LIST_HEAD(&bus->stream_list);
INIT_LIST_HEAD(&bus->codec_list);
INIT_WORK(&bus->unsol_work, snd_hdac_bus_process_unsol_events);
@ -217,3 +215,33 @@ void snd_hdac_bus_remove_device(struct hdac_bus *bus,
flush_work(&bus->unsol_work);
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_remove_device);
#ifdef CONFIG_SND_HDA_ALIGNED_MMIO
/* Helpers for aligned read/write of mmio space, for Tegra */
unsigned int snd_hdac_aligned_read(void __iomem *addr, unsigned int mask)
{
void __iomem *aligned_addr =
(void __iomem *)((unsigned long)(addr) & ~0x3);
unsigned int shift = ((unsigned long)(addr) & 0x3) << 3;
unsigned int v;
v = readl(aligned_addr);
return (v >> shift) & mask;
}
EXPORT_SYMBOL_GPL(snd_hdac_aligned_read);
void snd_hdac_aligned_write(unsigned int val, void __iomem *addr,
unsigned int mask)
{
void __iomem *aligned_addr =
(void __iomem *)((unsigned long)(addr) & ~0x3);
unsigned int shift = ((unsigned long)(addr) & 0x3) << 3;
unsigned int v;
v = readl(aligned_addr);
v &= ~(mask << shift);
v |= val << shift;
writel(v, aligned_addr);
}
EXPORT_SYMBOL_GPL(snd_hdac_aligned_write);
#endif /* CONFIG_SND_HDA_ALIGNED_MMIO */

18
sound/hda/hdac_controller.c
View file

@ -577,12 +577,13 @@ int snd_hdac_bus_alloc_stream_pages(struct hdac_bus *bus)
{
struct hdac_stream *s;
int num_streams = 0;
int dma_type = bus->dma_type ? bus->dma_type : SNDRV_DMA_TYPE_DEV;
int err;
list_for_each_entry(s, &bus->stream_list, list) {
/* allocate memory for the BDL for each stream */
err = bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV,
BDL_SIZE, &s->bdl);
err = snd_dma_alloc_pages(dma_type, bus->dev,
BDL_SIZE, &s->bdl);
num_streams++;
if (err < 0)
return -ENOMEM;
@ -591,16 +592,15 @@ int snd_hdac_bus_alloc_stream_pages(struct hdac_bus *bus)
if (WARN_ON(!num_streams))
return -EINVAL;
/* allocate memory for the position buffer */
err = bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV,
num_streams * 8, &bus->posbuf);
err = snd_dma_alloc_pages(dma_type, bus->dev,
num_streams * 8, &bus->posbuf);
if (err < 0)
return -ENOMEM;
list_for_each_entry(s, &bus->stream_list, list)
s->posbuf = (__le32 *)(bus->posbuf.area + s->index * 8);
/* single page (at least 4096 bytes) must suffice for both ringbuffes */
return bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV,
PAGE_SIZE, &bus->rb);
return snd_dma_alloc_pages(dma_type, bus->dev, PAGE_SIZE, &bus->rb);
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_alloc_stream_pages);
@ -614,12 +614,12 @@ void snd_hdac_bus_free_stream_pages(struct hdac_bus *bus)
list_for_each_entry(s, &bus->stream_list, list) {
if (s->bdl.area)
bus->io_ops->dma_free_pages(bus, &s->bdl);
snd_dma_free_pages(&s->bdl);
}
if (bus->rb.area)
bus->io_ops->dma_free_pages(bus, &bus->rb);
snd_dma_free_pages(&bus->rb);
if (bus->posbuf.area)
bus->io_ops->dma_free_pages(bus, &bus->posbuf);
snd_dma_free_pages(&bus->posbuf);
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_free_stream_pages);

8
sound/hda/hdac_stream.c
View file

@ -680,8 +680,8 @@ int snd_hdac_dsp_prepare(struct hdac_stream *azx_dev, unsigned int format,
azx_dev->locked = true;
spin_unlock_irq(&bus->reg_lock);
err = bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV_SG,
byte_size, bufp);
err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV_SG, bus->dev,
byte_size, bufp);
if (err < 0)
goto err_alloc;
@ -707,7 +707,7 @@ int snd_hdac_dsp_prepare(struct hdac_stream *azx_dev, unsigned int format,
return azx_dev->stream_tag;
error:
bus->io_ops->dma_free_pages(bus, bufp);
snd_dma_free_pages(bufp);
err_alloc:
spin_lock_irq(&bus->reg_lock);
azx_dev->locked = false;
@ -754,7 +754,7 @@ void snd_hdac_dsp_cleanup(struct hdac_stream *azx_dev,
azx_dev->period_bytes = 0;
azx_dev->format_val = 0;
bus->io_ops->dma_free_pages(bus, dmab);
snd_dma_free_pages(dmab);
dmab->area = NULL;
spin_lock_irq(&bus->reg_lock);