litmus-rt.git - The LITMUS^RT kernel.

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author	Linus Torvalds <torvalds@linux-foundation.org>	2008-05-11 20:09:24 -0400
committer	Linus Torvalds <torvalds@linux-foundation.org>	2008-05-11 20:09:24 -0400
commit	57014123512633ab0c38a4fea4140bf156f6a3a0 (patch)
tree	a46e864f9c508d8228e79928519742af6a42b7e4 /net/ipv4/proc.c
parent	c3921ab71507b108d51a0f1ee960f80cd668a93d (diff)
parent	ae429083efe996ca2c569c44fd6fea440676dc33 (diff)

Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6

* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: i2c: Convert some more new-style drivers to use module aliasing i2c: Match dummy devices by type i2c-sibyte: Mark i2c_sibyte_add_bus() as static i2c-sibyte: Correct a comment about frequency i2c: Improve the functionality documentation i2c: Improve smbus-protocol documentation i2c-piix4: Blacklist two mainboards i2c-piix4: Increase the intitial delay for the ServerWorks CSB5 i2c-mpc: Compare to NO_IRQ instead of zero

Diffstat (limited to 'net/ipv4/proc.c')

0 files changed, 0 insertions, 0 deletions

/* * Universal Interface for Intel High Definition Audio Codec * * HD audio interface patch for Silicon Labs 3054/5 modem codec * * Copyright (c) 2005 Sasha Khapyorsky <sashak@alsa-project.org> * Takashi Iwai <tiwai@suse.de> * * * This driver is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This driver is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/init.h> #include <linux/delay.h> #include <linux/slab.h> #include <sound/core.h> #include "hda_codec.h" #include "hda_local.h" /* si3054 verbs */ #define SI3054_VERB_READ_NODE 0x900 #define SI3054_VERB_WRITE_NODE 0x100 /* si3054 nodes (registers) */ #define SI3054_EXTENDED_MID 2 #define SI3054_LINE_RATE 3 #define SI3054_LINE_LEVEL 4 #define SI3054_GPIO_CFG 5 #define SI3054_GPIO_POLARITY 6 #define SI3054_GPIO_STICKY 7 #define SI3054_GPIO_WAKEUP 8 #define SI3054_GPIO_STATUS 9 #define SI3054_GPIO_CONTROL 10 #define SI3054_MISC_AFE 11 #define SI3054_CHIPID 12 #define SI3054_LINE_CFG1 13 #define SI3054_LINE_STATUS 14 #define SI3054_DC_TERMINATION 15 #define SI3054_LINE_CONFIG 16 #define SI3054_CALLPROG_ATT 17 #define SI3054_SQ_CONTROL 18 #define SI3054_MISC_CONTROL 19 #define SI3054_RING_CTRL1 20 #define SI3054_RING_CTRL2 21 /* extended MID */ #define SI3054_MEI_READY 0xf /* line level */ #define SI3054_ATAG_MASK 0x00f0 #define SI3054_DTAG_MASK 0xf000 /* GPIO bits */ #define SI3054_GPIO_OH 0x0001 #define SI3054_GPIO_CID 0x0002 /* chipid and revisions */ #define SI3054_CHIPID_CODEC_REV_MASK 0x000f #define SI3054_CHIPID_DAA_REV_MASK 0x00f0 #define SI3054_CHIPID_INTERNATIONAL 0x0100 #define SI3054_CHIPID_DAA_ID 0x0f00 #define SI3054_CHIPID_CODEC_ID (1<<12) /* si3054 codec registers (nodes) access macros */ #define GET_REG(codec,reg) (snd_hda_codec_read(codec,reg,0,SI3054_VERB_READ_NODE,0)) #define SET_REG(codec,reg,val) (snd_hda_codec_write(codec,reg,0,SI3054_VERB_WRITE_NODE,val)) #define SET_REG_CACHE(codec,reg,val) \ snd_hda_codec_write_cache(codec,reg,0,SI3054_VERB_WRITE_NODE,val) struct si3054_spec { unsigned international; struct hda_pcm pcm; }; /* * Modem mixer */ #define PRIVATE_VALUE(reg,mask) ((reg<<16)|(mask&0xffff)) #define PRIVATE_REG(val) ((val>>16)&0xffff) #define PRIVATE_MASK(val) (val&0xffff) #define si3054_switch_info snd_ctl_boolean_mono_info static int si3054_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *uvalue) { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); u16 reg = PRIVATE_REG(kcontrol->private_value); u16 mask = PRIVATE_MASK(kcontrol->private_value); uvalue->value.integer.value[0] = (GET_REG(codec, reg)) & mask ? 1 : 0 ; return 0; } static int si3054_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *uvalue) { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); u16 reg = PRIVATE_REG(kcontrol->private_value); u16 mask = PRIVATE_MASK(kcontrol->private_value); if (uvalue->value.integer.value[0]) SET_REG_CACHE(codec, reg, (GET_REG(codec, reg)) | mask); else SET_REG_CACHE(codec, reg, (GET_REG(codec, reg)) & ~mask); return 0; } #define SI3054_KCONTROL(kname,reg,mask) { \ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ .name = kname, \ .subdevice = HDA_SUBDEV_NID_FLAG | reg, \ .info = si3054_switch_info, \ .get = si3054_switch_get, \ .put = si3054_switch_put, \ .private_value = PRIVATE_VALUE(reg,mask), \ } static const struct snd_kcontrol_new si3054_modem_mixer[] = { SI3054_KCONTROL("Off-hook Switch", SI3054_GPIO_CONTROL, SI3054_GPIO_OH), SI3054_KCONTROL("Caller ID Switch", SI3054_GPIO_CONTROL, SI3054_GPIO_CID), {} }; static int si3054_build_controls(struct hda_codec *codec) { return snd_hda_add_new_ctls(codec, si3054_modem_mixer); } /* * PCM callbacks */ static int si3054_pcm_prepare(struct hda_pcm_stream *hinfo, struct hda_codec *codec, unsigned int stream_tag, unsigned int format, struct snd_pcm_substream *substream) { u16 val; SET_REG(codec, SI3054_LINE_RATE, substream->runtime->rate); val = GET_REG(codec, SI3054_LINE_LEVEL); val &= 0xff << (8 * (substream->stream != SNDRV_PCM_STREAM_PLAYBACK)); val |= ((stream_tag & 0xf) << 4) << (8 * (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)); SET_REG(codec, SI3054_LINE_LEVEL, val); snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format); return 0; } static int si3054_pcm_open(struct hda_pcm_stream *hinfo, struct hda_codec *codec, struct snd_pcm_substream *substream) { static unsigned int rates[] = { 8000, 9600, 16000 }; static struct snd_pcm_hw_constraint_list hw_constraints_rates = { .count = ARRAY_SIZE(rates), .list = rates, .mask = 0, }; substream->runtime->hw.period_bytes_min = 80; return snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates); } static const struct hda_pcm_stream si3054_pcm = { .substreams = 1, .channels_min = 1, .channels_max = 1, .nid = 0x1, .rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_KNOT, .formats = SNDRV_PCM_FMTBIT_S16_LE, .maxbps = 16, .ops = { .open = si3054_pcm_open, .prepare = si3054_pcm_prepare, }, }; static int si3054_build_pcms(struct hda_codec *codec) { struct si3054_spec *spec = codec->spec; struct hda_pcm *info = &spec->pcm; codec->num_pcms = 1; codec->pcm_info = info; info->name = "Si3054 Modem"; info->stream[SNDRV_PCM_STREAM_PLAYBACK] = si3054_pcm; info->stream[SNDRV_PCM_STREAM_CAPTURE] = si3054_pcm; info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = codec->mfg; info->stream[SNDRV_PCM_STREAM_CAPTURE].nid = codec->mfg; info->pcm_type = HDA_PCM_TYPE_MODEM; return 0; } /* * Init part */ static int si3054_init(struct hda_codec *codec) { struct si3054_spec *spec = codec->spec; unsigned wait_count; u16 val; snd_hda_codec_write(codec, AC_NODE_ROOT, 0, AC_VERB_SET_CODEC_RESET, 0); snd_hda_codec_write(codec, codec->mfg, 0, AC_VERB_SET_STREAM_FORMAT, 0); SET_REG(codec, SI3054_LINE_RATE, 9600); SET_REG(codec, SI3054_LINE_LEVEL, SI3054_DTAG_MASK|SI3054_ATAG_MASK); SET_REG(codec, SI3054_EXTENDED_MID, 0); wait_count = 10; do { msleep(2); val = GET_REG(codec, SI3054_EXTENDED_MID); } while ((val & SI3054_MEI_READY) != SI3054_MEI_READY && wait_count--); if((val&SI3054_MEI_READY) != SI3054_MEI_READY) { snd_printk(KERN_ERR "si3054: cannot initialize. EXT MID = %04x\n", val); /* let's pray that this is no fatal error */ /* return -EACCES; */ } SET_REG(codec, SI3054_GPIO_POLARITY, 0xffff); SET_REG(codec, SI3054_GPIO_CFG, 0x0); SET_REG(codec, SI3054_MISC_AFE, 0); SET_REG(codec, SI3054_LINE_CFG1,0x200); if((GET_REG(codec,SI3054_LINE_STATUS) & (1<<6)) == 0) { snd_printd("Link Frame Detect(FDT) is not ready (line status: %04x)\n", GET_REG(codec,SI3054_LINE_STATUS)); } spec->international = GET_REG(codec, SI3054_CHIPID) & SI3054_CHIPID_INTERNATIONAL; return 0; } static void si3054_free(struct hda_codec *codec) { kfree(codec->spec); } /* */ static const struct hda_codec_ops si3054_patch_ops = { .build_controls = si3054_build_controls, .build_pcms = si3054_build_pcms, .init = si3054_init, .free = si3054_free, }; static int patch_si3054(struct hda_codec *codec) { struct si3054_spec *spec = kzalloc(sizeof(*spec), GFP_KERNEL); if (spec == NULL) return -ENOMEM; codec->spec = spec; codec->patch_ops = si3054_patch_ops; return 0; } /* * patch entries */ static const struct hda_codec_preset snd_hda_preset_si3054[] = { { .id = 0x163c3055, .name = "Si3054", .patch = patch_si3054 }, { .id = 0x163c3155, .name = "Si3054", .patch = patch_si3054 }, { .id = 0x11c13026, .name = "Si3054", .patch = patch_si3054 }, { .id = 0x11c13055, .name = "Si3054", .patch = patch_si3054 },


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