The macros _snd_hdac_chip_read() and *_write() expand to different types (b,w,l) per their argument. They were thought to be used only internally for other snd_hdac_chip_*() macros, but in some situations we need to call these directly, and they are way too ugly.

Instead of saving a few lines, we just write these macros explicitly with the types, so that they can be used in a saner way.

Signed-off-by: Takashi Iwai tiwai@suse.de --- include/sound/hdaudio.h | 28 ++++++++++++++++++---------- sound/hda/hdac_controller.c | 2 +- sound/hda/hdac_stream.c | 4 ++-- 3 files changed, 21 insertions(+), 13 deletions(-)

diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h index 56004ec8d441..96546b30e900 100644 --- a/include/sound/hdaudio.h +++ b/include/sound/hdaudio.h @@ -368,24 +368,32 @@ void snd_hdac_bus_free_stream_pages(struct hdac_bus *bus); /* * macros for easy use */ -#define _snd_hdac_chip_write(type, chip, reg, value) \ - ((chip)->io_ops->reg_write ## type(value, (chip)->remap_addr + (reg))) -#define _snd_hdac_chip_read(type, chip, reg) \ - ((chip)->io_ops->reg_read ## type((chip)->remap_addr + (reg))) +#define _snd_hdac_chip_writeb(chip, reg, value) \ + ((chip)->io_ops->reg_writeb(value, (chip)->remap_addr + (reg))) +#define _snd_hdac_chip_readb(chip, reg) \ + ((chip)->io_ops->reg_readb((chip)->remap_addr + (reg))) +#define _snd_hdac_chip_writew(chip, reg, value) \ + ((chip)->io_ops->reg_writew(value, (chip)->remap_addr + (reg))) +#define _snd_hdac_chip_readw(chip, reg) \ + ((chip)->io_ops->reg_readw((chip)->remap_addr + (reg))) +#define _snd_hdac_chip_writel(chip, reg, value) \ + ((chip)->io_ops->reg_writel(value, (chip)->remap_addr + (reg))) +#define _snd_hdac_chip_readl(chip, reg) \ + ((chip)->io_ops->reg_readl((chip)->remap_addr + (reg)))

/* read/write a register, pass without AZX_REG_ prefix */ #define snd_hdac_chip_writel(chip, reg, value) \ - _snd_hdac_chip_write(l, chip, AZX_REG_ ## reg, value) + _snd_hdac_chip_writel(chip, AZX_REG_ ## reg, value) #define snd_hdac_chip_writew(chip, reg, value) \ - _snd_hdac_chip_write(w, chip, AZX_REG_ ## reg, value) + _snd_hdac_chip_writew(chip, AZX_REG_ ## reg, value) #define snd_hdac_chip_writeb(chip, reg, value) \ - _snd_hdac_chip_write(b, chip, AZX_REG_ ## reg, value) + _snd_hdac_chip_writeb(chip, AZX_REG_ ## reg, value) #define snd_hdac_chip_readl(chip, reg) \ - _snd_hdac_chip_read(l, chip, AZX_REG_ ## reg) + _snd_hdac_chip_readl(chip, AZX_REG_ ## reg) #define snd_hdac_chip_readw(chip, reg) \ - _snd_hdac_chip_read(w, chip, AZX_REG_ ## reg) + _snd_hdac_chip_readw(chip, AZX_REG_ ## reg) #define snd_hdac_chip_readb(chip, reg) \ - _snd_hdac_chip_read(b, chip, AZX_REG_ ## reg) + _snd_hdac_chip_readb(chip, AZX_REG_ ## reg)

/* update a register, pass without AZX_REG_ prefix */ #define snd_hdac_chip_updatel(chip, reg, mask, val) \ diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c index 043065867656..d15b653de0bf 100644 --- a/sound/hda/hdac_controller.c +++ b/sound/hda/hdac_controller.c @@ -272,7 +272,7 @@ int snd_hdac_bus_parse_capabilities(struct hdac_bus *bus)

/* Lets walk the linked capabilities list */ do { - cur_cap = _snd_hdac_chip_read(l, bus, offset); + cur_cap = _snd_hdac_chip_readl(bus, offset);

dev_dbg(bus->dev, "Capability version: 0x%x\n", (cur_cap & AZX_CAP_HDR_VER_MASK) >> AZX_CAP_HDR_VER_OFF); diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c index c6994ebb4567..e1472c7ab6c1 100644 --- a/sound/hda/hdac_stream.c +++ b/sound/hda/hdac_stream.c @@ -555,12 +555,12 @@ void snd_hdac_stream_sync_trigger(struct hdac_stream *azx_dev, bool set,

if (!reg) reg = AZX_REG_SSYNC; - val = _snd_hdac_chip_read(l, bus, reg); + val = _snd_hdac_chip_readl(bus, reg); if (set) val |= streams; else val &= ~streams; - _snd_hdac_chip_write(l, bus, reg, val); + _snd_hdac_chip_writel(bus, reg, val); } EXPORT_SYMBOL_GPL(snd_hdac_stream_sync_trigger);

Apply the same methods to obtain the current stream position as ASoC Intel SKL driver uses. It reads the position from DPIB for a playback stream while it still reads from the position buffer for a capture stream. For a capture stream, some ugly workaround is needed to settle down the inconsistent position.

Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/pci/hda/hda_intel.c | 36 ++++++++++++++++++++++++++++++++++-- 1 file changed, 34 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index a48330f4a1a9..64db6698214c 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -77,6 +77,7 @@ enum { POS_FIX_POSBUF, POS_FIX_VIACOMBO, POS_FIX_COMBO, + POS_FIX_SKL, };

/* Defines for ATI HD Audio support in SB450 south bridge */ @@ -148,7 +149,7 @@ module_param_array(model, charp, NULL, 0444); MODULE_PARM_DESC(model, "Use the given board model."); module_param_array(position_fix, int, NULL, 0444); MODULE_PARM_DESC(position_fix, "DMA pointer read method." - "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO)."); + "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO, 5 = SKL+)."); module_param_array(bdl_pos_adj, int, NULL, 0644); MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset."); module_param_array(probe_mask, int, NULL, 0444); @@ -815,6 +816,31 @@ static unsigned int azx_via_get_position(struct azx *chip, return bound_pos + mod_dma_pos; }

+static unsigned int azx_skl_get_dpib_pos(struct azx *chip, + struct azx_dev *azx_dev) +{ + return _snd_hdac_chip_readl(azx_bus(chip), + AZX_REG_VS_SDXDPIB_XBASE + + (AZX_REG_VS_SDXDPIB_XINTERVAL * + azx_dev->core.index)); +} + +/* get the current DMA position with correction on SKL+ chips */ +static unsigned int azx_get_pos_skl(struct azx *chip, struct azx_dev *azx_dev) +{ + /* DPIB register gives a more accurate position for playback */ + if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + return azx_skl_get_dpib_pos(chip, azx_dev); + + /* For capture, we need to read posbuf, but it requires a delay + * for the possible boundary overlap; the read of DPIB fetches the + * actual posbuf + */ + udelay(20); + azx_skl_get_dpib_pos(chip, azx_dev); + return azx_get_pos_posbuf(chip, azx_dev); +} + #ifdef CONFIG_PM static DEFINE_MUTEX(card_list_lock); static LIST_HEAD(card_list); @@ -1351,6 +1377,7 @@ static int check_position_fix(struct azx *chip, int fix) case POS_FIX_POSBUF: case POS_FIX_VIACOMBO: case POS_FIX_COMBO: + case POS_FIX_SKL: return fix; }

@@ -1371,6 +1398,10 @@ static int check_position_fix(struct azx *chip, int fix) dev_dbg(chip->card->dev, "Using LPIB position fix\n"); return POS_FIX_LPIB; } + if (IS_SKL_PLUS(chip->pci)) { + dev_dbg(chip->card->dev, "Using SKL position fix\n"); + return POS_FIX_SKL; + } return POS_FIX_AUTO; }

@@ -1382,6 +1413,7 @@ static void assign_position_fix(struct azx *chip, int fix) [POS_FIX_POSBUF] = azx_get_pos_posbuf, [POS_FIX_VIACOMBO] = azx_via_get_position, [POS_FIX_COMBO] = azx_get_pos_lpib, + [POS_FIX_SKL] = azx_get_pos_skl, };

chip->get_position[0] = chip->get_position[1] = callbacks[fix]; @@ -1390,7 +1422,7 @@ static void assign_position_fix(struct azx *chip, int fix) if (fix == POS_FIX_COMBO) chip->get_position[1] = NULL;

- if (fix == POS_FIX_POSBUF && + if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) && (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) { chip->get_delay[0] = chip->get_delay[1] = azx_get_delay_from_lpib;