From 2c1f81381eadc6dd3c288ec4477b2fe572cf86dc Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 29 Mar 2017 08:27:15 +0200 Subject: [PATCH] ALSA: hda - Avoid tricky macros 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. Acked-by: Vinod Koul Signed-off-by: Takashi Iwai --- 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); -- 2.20.1