From f2a227cd3891266f1486a21aac86fa39b3abd093 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 18 Aug 2014 13:35:22 +0200 Subject: [PATCH] ALSA: hda/realtek - Optimize alc888_coef_init() Just a refactoring using the existing helper functions. Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 91 +++++++++++++++-------------------- 1 file changed, 40 insertions(+), 51 deletions(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index d71270a3f73f..c9a7a2d237da 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -128,6 +128,43 @@ struct alc_spec { unsigned int coef0; }; +/* + * COEF access helper functions + */ + +static int alc_read_coefex_idx(struct hda_codec *codec, hda_nid_t nid, + unsigned int coef_idx) +{ + unsigned int val; + + snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX, coef_idx); + val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_PROC_COEF, 0); + return val; +} + +#define alc_read_coef_idx(codec, coef_idx) \ + alc_read_coefex_idx(codec, 0x20, coef_idx) + +static void alc_write_coefex_idx(struct hda_codec *codec, hda_nid_t nid, + unsigned int coef_idx, unsigned int coef_val) +{ + snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX, coef_idx); + snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_PROC_COEF, coef_val); +} + +#define alc_write_coef_idx(codec, coef_idx, coef_val) \ + alc_write_coefex_idx(codec, 0x20, coef_idx, coef_val) + +/* a special bypass for COEF 0; read the cached value at the second time */ +static unsigned int alc_get_coef0(struct hda_codec *codec) +{ + struct alc_spec *spec = codec->spec; + + if (!spec->coef0) + spec->coef0 = alc_read_coef_idx(codec, 0); + return spec->coef0; +} + /* * Append the given mixer and verb elements for the later use * The mixer array is referred in build_controls(), and init_verbs are @@ -231,19 +268,12 @@ static void alc880_unsol_event(struct hda_codec *codec, unsigned int res) /* additional initialization for ALC888 variants */ static void alc888_coef_init(struct hda_codec *codec) { - unsigned int tmp; - - snd_hda_codec_write(codec, 0x20, 0, AC_VERB_SET_COEF_INDEX, 0); - tmp = snd_hda_codec_read(codec, 0x20, 0, AC_VERB_GET_PROC_COEF, 0); - snd_hda_codec_write(codec, 0x20, 0, AC_VERB_SET_COEF_INDEX, 7); - if ((tmp & 0xf0) == 0x20) + if (alc_get_coef0(codec) == 0x20) /* alc888S-VC */ - snd_hda_codec_read(codec, 0x20, 0, - AC_VERB_SET_PROC_COEF, 0x830); + alc_write_coef_idx(codec, 7, 0x830); else /* alc888-VB */ - snd_hda_codec_read(codec, 0x20, 0, - AC_VERB_SET_PROC_COEF, 0x3030); + alc_write_coef_idx(codec, 7, 0x3030); } /* additional initialization for ALC889 variants */ @@ -586,47 +616,6 @@ static void alc_ssid_check(struct hda_codec *codec, const hda_nid_t *ports) } } -/* - * COEF access helper functions - */ - -static int alc_read_coefex_idx(struct hda_codec *codec, - hda_nid_t nid, - unsigned int coef_idx) -{ - unsigned int val; - snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX, - coef_idx); - val = snd_hda_codec_read(codec, nid, 0, - AC_VERB_GET_PROC_COEF, 0); - return val; -} - -#define alc_read_coef_idx(codec, coef_idx) \ - alc_read_coefex_idx(codec, 0x20, coef_idx) - -static void alc_write_coefex_idx(struct hda_codec *codec, hda_nid_t nid, - unsigned int coef_idx, - unsigned int coef_val) -{ - snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX, - coef_idx); - snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_PROC_COEF, - coef_val); -} - -#define alc_write_coef_idx(codec, coef_idx, coef_val) \ - alc_write_coefex_idx(codec, 0x20, coef_idx, coef_val) - -/* a special bypass for COEF 0; read the cached value at the second time */ -static unsigned int alc_get_coef0(struct hda_codec *codec) -{ - struct alc_spec *spec = codec->spec; - if (!spec->coef0) - spec->coef0 = alc_read_coef_idx(codec, 0); - return spec->coef0; -} - /* */ -- 2.20.1