forked from Minki/linux
58c1f8acde
VIA82xx-modem driver Fix the resume of via82xx-modem, removing invalid __devinit. Signed-off-by: Takashi Iwai <tiwai@suse.de>
1246 lines
34 KiB
C
1246 lines
34 KiB
C
/*
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* ALSA modem driver for VIA VT82xx (South Bridge)
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*
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* VT82C686A/B/C, VT8233A/C, VT8235
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*
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* Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz>
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* Tjeerd.Mulder <Tjeerd.Mulder@fujitsu-siemens.com>
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* 2002 Takashi Iwai <tiwai@suse.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/*
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* Changes:
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*
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* Sep. 2, 2004 Sasha Khapyorsky <sashak@smlink.com>
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* Modified from original audio driver 'via82xx.c' to support AC97
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* modems.
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*/
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#include <sound/driver.h>
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#include <asm/io.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/slab.h>
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#include <linux/moduleparam.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/info.h>
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#include <sound/ac97_codec.h>
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#include <sound/initval.h>
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#if 0
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#define POINTER_DEBUG
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#endif
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MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
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MODULE_DESCRIPTION("VIA VT82xx modem");
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MODULE_LICENSE("GPL");
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MODULE_SUPPORTED_DEVICE("{{VIA,VT82C686A/B/C modem,pci}}");
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static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
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static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
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static int ac97_clock[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 48000};
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module_param_array(index, int, NULL, 0444);
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MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge.");
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module_param_array(id, charp, NULL, 0444);
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MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge.");
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module_param_array(enable, bool, NULL, 0444);
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MODULE_PARM_DESC(enable, "Enable modem part of VIA 82xx bridge.");
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module_param_array(ac97_clock, int, NULL, 0444);
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MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
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/*
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* Direct registers
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*/
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#define VIAREG(via, x) ((via)->port + VIA_REG_##x)
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#define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x)
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/* common offsets */
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#define VIA_REG_OFFSET_STATUS 0x00 /* byte - channel status */
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#define VIA_REG_STAT_ACTIVE 0x80 /* RO */
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#define VIA_REG_STAT_PAUSED 0x40 /* RO */
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#define VIA_REG_STAT_TRIGGER_QUEUED 0x08 /* RO */
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#define VIA_REG_STAT_STOPPED 0x04 /* RWC */
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#define VIA_REG_STAT_EOL 0x02 /* RWC */
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#define VIA_REG_STAT_FLAG 0x01 /* RWC */
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#define VIA_REG_OFFSET_CONTROL 0x01 /* byte - channel control */
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#define VIA_REG_CTRL_START 0x80 /* WO */
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#define VIA_REG_CTRL_TERMINATE 0x40 /* WO */
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#define VIA_REG_CTRL_AUTOSTART 0x20
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#define VIA_REG_CTRL_PAUSE 0x08 /* RW */
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#define VIA_REG_CTRL_INT_STOP 0x04
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#define VIA_REG_CTRL_INT_EOL 0x02
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#define VIA_REG_CTRL_INT_FLAG 0x01
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#define VIA_REG_CTRL_RESET 0x01 /* RW - probably reset? undocumented */
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#define VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART)
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#define VIA_REG_OFFSET_TYPE 0x02 /* byte - channel type (686 only) */
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#define VIA_REG_TYPE_AUTOSTART 0x80 /* RW - autostart at EOL */
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#define VIA_REG_TYPE_16BIT 0x20 /* RW */
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#define VIA_REG_TYPE_STEREO 0x10 /* RW */
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#define VIA_REG_TYPE_INT_LLINE 0x00
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#define VIA_REG_TYPE_INT_LSAMPLE 0x04
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#define VIA_REG_TYPE_INT_LESSONE 0x08
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#define VIA_REG_TYPE_INT_MASK 0x0c
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#define VIA_REG_TYPE_INT_EOL 0x02
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#define VIA_REG_TYPE_INT_FLAG 0x01
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#define VIA_REG_OFFSET_TABLE_PTR 0x04 /* dword - channel table pointer */
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#define VIA_REG_OFFSET_CURR_PTR 0x04 /* dword - channel current pointer */
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#define VIA_REG_OFFSET_STOP_IDX 0x08 /* dword - stop index, channel type, sample rate */
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#define VIA_REG_OFFSET_CURR_COUNT 0x0c /* dword - channel current count (24 bit) */
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#define VIA_REG_OFFSET_CURR_INDEX 0x0f /* byte - channel current index (for via8233 only) */
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#define DEFINE_VIA_REGSET(name,val) \
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enum {\
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VIA_REG_##name##_STATUS = (val),\
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VIA_REG_##name##_CONTROL = (val) + 0x01,\
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VIA_REG_##name##_TYPE = (val) + 0x02,\
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VIA_REG_##name##_TABLE_PTR = (val) + 0x04,\
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VIA_REG_##name##_CURR_PTR = (val) + 0x04,\
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VIA_REG_##name##_STOP_IDX = (val) + 0x08,\
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VIA_REG_##name##_CURR_COUNT = (val) + 0x0c,\
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}
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/* modem block */
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DEFINE_VIA_REGSET(MO, 0x40);
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DEFINE_VIA_REGSET(MI, 0x50);
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/* AC'97 */
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#define VIA_REG_AC97 0x80 /* dword */
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#define VIA_REG_AC97_CODEC_ID_MASK (3<<30)
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#define VIA_REG_AC97_CODEC_ID_SHIFT 30
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#define VIA_REG_AC97_CODEC_ID_PRIMARY 0x00
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#define VIA_REG_AC97_CODEC_ID_SECONDARY 0x01
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#define VIA_REG_AC97_SECONDARY_VALID (1<<27)
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#define VIA_REG_AC97_PRIMARY_VALID (1<<25)
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#define VIA_REG_AC97_BUSY (1<<24)
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#define VIA_REG_AC97_READ (1<<23)
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#define VIA_REG_AC97_CMD_SHIFT 16
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#define VIA_REG_AC97_CMD_MASK 0x7e
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#define VIA_REG_AC97_DATA_SHIFT 0
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#define VIA_REG_AC97_DATA_MASK 0xffff
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#define VIA_REG_SGD_SHADOW 0x84 /* dword */
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#define VIA_REG_SGD_STAT_PB_FLAG (1<<0)
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#define VIA_REG_SGD_STAT_CP_FLAG (1<<1)
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#define VIA_REG_SGD_STAT_FM_FLAG (1<<2)
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#define VIA_REG_SGD_STAT_PB_EOL (1<<4)
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#define VIA_REG_SGD_STAT_CP_EOL (1<<5)
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#define VIA_REG_SGD_STAT_FM_EOL (1<<6)
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#define VIA_REG_SGD_STAT_PB_STOP (1<<8)
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#define VIA_REG_SGD_STAT_CP_STOP (1<<9)
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#define VIA_REG_SGD_STAT_FM_STOP (1<<10)
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#define VIA_REG_SGD_STAT_PB_ACTIVE (1<<12)
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#define VIA_REG_SGD_STAT_CP_ACTIVE (1<<13)
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#define VIA_REG_SGD_STAT_FM_ACTIVE (1<<14)
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#define VIA_REG_SGD_STAT_MR_FLAG (1<<16)
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#define VIA_REG_SGD_STAT_MW_FLAG (1<<17)
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#define VIA_REG_SGD_STAT_MR_EOL (1<<20)
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#define VIA_REG_SGD_STAT_MW_EOL (1<<21)
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#define VIA_REG_SGD_STAT_MR_STOP (1<<24)
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#define VIA_REG_SGD_STAT_MW_STOP (1<<25)
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#define VIA_REG_SGD_STAT_MR_ACTIVE (1<<28)
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#define VIA_REG_SGD_STAT_MW_ACTIVE (1<<29)
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#define VIA_REG_GPI_STATUS 0x88
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#define VIA_REG_GPI_INTR 0x8c
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#define VIA_TBL_BIT_FLAG 0x40000000
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#define VIA_TBL_BIT_EOL 0x80000000
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/* pci space */
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#define VIA_ACLINK_STAT 0x40
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#define VIA_ACLINK_C11_READY 0x20
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#define VIA_ACLINK_C10_READY 0x10
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#define VIA_ACLINK_C01_READY 0x04 /* secondary codec ready */
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#define VIA_ACLINK_LOWPOWER 0x02 /* low-power state */
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#define VIA_ACLINK_C00_READY 0x01 /* primary codec ready */
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#define VIA_ACLINK_CTRL 0x41
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#define VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */
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#define VIA_ACLINK_CTRL_RESET 0x40 /* 0: assert, 1: de-assert */
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#define VIA_ACLINK_CTRL_SYNC 0x20 /* 0: release SYNC, 1: force SYNC hi */
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#define VIA_ACLINK_CTRL_SDO 0x10 /* 0: release SDO, 1: force SDO hi */
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#define VIA_ACLINK_CTRL_VRA 0x08 /* 0: disable VRA, 1: enable VRA */
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#define VIA_ACLINK_CTRL_PCM 0x04 /* 0: disable PCM, 1: enable PCM */
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#define VIA_ACLINK_CTRL_FM 0x02 /* via686 only */
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#define VIA_ACLINK_CTRL_SB 0x01 /* via686 only */
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#define VIA_ACLINK_CTRL_INIT (VIA_ACLINK_CTRL_ENABLE|\
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VIA_ACLINK_CTRL_RESET|\
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VIA_ACLINK_CTRL_PCM)
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#define VIA_FUNC_ENABLE 0x42
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#define VIA_FUNC_MIDI_PNP 0x80 /* FIXME: it's 0x40 in the datasheet! */
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#define VIA_FUNC_MIDI_IRQMASK 0x40 /* FIXME: not documented! */
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#define VIA_FUNC_RX2C_WRITE 0x20
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#define VIA_FUNC_SB_FIFO_EMPTY 0x10
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#define VIA_FUNC_ENABLE_GAME 0x08
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#define VIA_FUNC_ENABLE_FM 0x04
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#define VIA_FUNC_ENABLE_MIDI 0x02
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#define VIA_FUNC_ENABLE_SB 0x01
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#define VIA_PNP_CONTROL 0x43
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#define VIA_MC97_CTRL 0x44
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#define VIA_MC97_CTRL_ENABLE 0x80
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#define VIA_MC97_CTRL_SECONDARY 0x40
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#define VIA_MC97_CTRL_INIT (VIA_MC97_CTRL_ENABLE|\
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VIA_MC97_CTRL_SECONDARY)
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typedef struct _snd_via82xx_modem via82xx_t;
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typedef struct via_dev viadev_t;
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/*
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* pcm stream
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*/
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struct snd_via_sg_table {
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unsigned int offset;
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unsigned int size;
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} ;
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#define VIA_TABLE_SIZE 255
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struct via_dev {
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unsigned int reg_offset;
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unsigned long port;
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int direction; /* playback = 0, capture = 1 */
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snd_pcm_substream_t *substream;
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int running;
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unsigned int tbl_entries; /* # descriptors */
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struct snd_dma_buffer table;
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struct snd_via_sg_table *idx_table;
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/* for recovery from the unexpected pointer */
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unsigned int lastpos;
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unsigned int bufsize;
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unsigned int bufsize2;
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};
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enum { TYPE_CARD_VIA82XX_MODEM = 1 };
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#define VIA_MAX_MODEM_DEVS 2
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struct _snd_via82xx_modem {
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int irq;
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unsigned long port;
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unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
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struct pci_dev *pci;
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snd_card_t *card;
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unsigned int num_devs;
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unsigned int playback_devno, capture_devno;
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viadev_t devs[VIA_MAX_MODEM_DEVS];
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snd_pcm_t *pcms[2];
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ac97_bus_t *ac97_bus;
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ac97_t *ac97;
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unsigned int ac97_clock;
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unsigned int ac97_secondary; /* secondary AC'97 codec is present */
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spinlock_t reg_lock;
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snd_info_entry_t *proc_entry;
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};
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static struct pci_device_id snd_via82xx_modem_ids[] = {
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{ 0x1106, 0x3068, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA82XX_MODEM, },
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{ 0, }
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};
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MODULE_DEVICE_TABLE(pci, snd_via82xx_modem_ids);
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/*
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*/
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/*
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* allocate and initialize the descriptor buffers
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* periods = number of periods
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* fragsize = period size in bytes
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*/
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static int build_via_table(viadev_t *dev, snd_pcm_substream_t *substream,
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struct pci_dev *pci,
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unsigned int periods, unsigned int fragsize)
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{
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unsigned int i, idx, ofs, rest;
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via82xx_t *chip = snd_pcm_substream_chip(substream);
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struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
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if (dev->table.area == NULL) {
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/* the start of each lists must be aligned to 8 bytes,
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* but the kernel pages are much bigger, so we don't care
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*/
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if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
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PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8),
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&dev->table) < 0)
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return -ENOMEM;
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}
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if (! dev->idx_table) {
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dev->idx_table = kmalloc(sizeof(*dev->idx_table) * VIA_TABLE_SIZE, GFP_KERNEL);
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if (! dev->idx_table)
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return -ENOMEM;
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}
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/* fill the entries */
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idx = 0;
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ofs = 0;
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for (i = 0; i < periods; i++) {
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rest = fragsize;
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/* fill descriptors for a period.
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* a period can be split to several descriptors if it's
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* over page boundary.
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*/
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do {
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unsigned int r;
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unsigned int flag;
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if (idx >= VIA_TABLE_SIZE) {
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snd_printk(KERN_ERR "via82xx: too much table size!\n");
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return -EINVAL;
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}
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((u32 *)dev->table.area)[idx << 1] = cpu_to_le32((u32)snd_pcm_sgbuf_get_addr(sgbuf, ofs));
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r = PAGE_SIZE - (ofs % PAGE_SIZE);
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if (rest < r)
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r = rest;
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rest -= r;
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if (! rest) {
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if (i == periods - 1)
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flag = VIA_TBL_BIT_EOL; /* buffer boundary */
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else
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flag = VIA_TBL_BIT_FLAG; /* period boundary */
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} else
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flag = 0; /* period continues to the next */
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// printk("via: tbl %d: at %d size %d (rest %d)\n", idx, ofs, r, rest);
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((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag);
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dev->idx_table[idx].offset = ofs;
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dev->idx_table[idx].size = r;
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ofs += r;
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idx++;
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} while (rest > 0);
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}
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dev->tbl_entries = idx;
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dev->bufsize = periods * fragsize;
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dev->bufsize2 = dev->bufsize / 2;
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return 0;
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}
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static int clean_via_table(viadev_t *dev, snd_pcm_substream_t *substream,
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struct pci_dev *pci)
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{
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if (dev->table.area) {
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snd_dma_free_pages(&dev->table);
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dev->table.area = NULL;
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}
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if (dev->idx_table) {
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kfree(dev->idx_table);
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dev->idx_table = NULL;
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}
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return 0;
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}
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/*
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* Basic I/O
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*/
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static inline unsigned int snd_via82xx_codec_xread(via82xx_t *chip)
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{
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return inl(VIAREG(chip, AC97));
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}
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static inline void snd_via82xx_codec_xwrite(via82xx_t *chip, unsigned int val)
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{
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outl(val, VIAREG(chip, AC97));
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}
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static int snd_via82xx_codec_ready(via82xx_t *chip, int secondary)
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{
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unsigned int timeout = 1000; /* 1ms */
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unsigned int val;
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while (timeout-- > 0) {
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udelay(1);
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if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY))
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return val & 0xffff;
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}
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snd_printk(KERN_ERR "codec_ready: codec %i is not ready [0x%x]\n", secondary, snd_via82xx_codec_xread(chip));
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return -EIO;
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}
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static int snd_via82xx_codec_valid(via82xx_t *chip, int secondary)
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{
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unsigned int timeout = 1000; /* 1ms */
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unsigned int val, val1;
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unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID :
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VIA_REG_AC97_SECONDARY_VALID;
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while (timeout-- > 0) {
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val = snd_via82xx_codec_xread(chip);
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val1 = val & (VIA_REG_AC97_BUSY | stat);
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if (val1 == stat)
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return val & 0xffff;
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udelay(1);
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}
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return -EIO;
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}
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static void snd_via82xx_codec_wait(ac97_t *ac97)
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{
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via82xx_t *chip = ac97->private_data;
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int err;
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err = snd_via82xx_codec_ready(chip, ac97->num);
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/* here we need to wait fairly for long time.. */
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set_current_state(TASK_UNINTERRUPTIBLE);
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schedule_timeout(HZ/2);
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}
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static void snd_via82xx_codec_write(ac97_t *ac97,
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unsigned short reg,
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unsigned short val)
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{
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via82xx_t *chip = ac97->private_data;
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unsigned int xval;
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xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY;
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xval <<= VIA_REG_AC97_CODEC_ID_SHIFT;
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xval |= reg << VIA_REG_AC97_CMD_SHIFT;
|
|
xval |= val << VIA_REG_AC97_DATA_SHIFT;
|
|
snd_via82xx_codec_xwrite(chip, xval);
|
|
snd_via82xx_codec_ready(chip, ac97->num);
|
|
}
|
|
|
|
static unsigned short snd_via82xx_codec_read(ac97_t *ac97, unsigned short reg)
|
|
{
|
|
via82xx_t *chip = ac97->private_data;
|
|
unsigned int xval, val = 0xffff;
|
|
int again = 0;
|
|
|
|
xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT;
|
|
xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID;
|
|
xval |= VIA_REG_AC97_READ;
|
|
xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT;
|
|
while (1) {
|
|
if (again++ > 3) {
|
|
snd_printk(KERN_ERR "codec_read: codec %i is not valid [0x%x]\n", ac97->num, snd_via82xx_codec_xread(chip));
|
|
return 0xffff;
|
|
}
|
|
snd_via82xx_codec_xwrite(chip, xval);
|
|
udelay (20);
|
|
if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) {
|
|
udelay(25);
|
|
val = snd_via82xx_codec_xread(chip);
|
|
break;
|
|
}
|
|
}
|
|
return val & 0xffff;
|
|
}
|
|
|
|
static void snd_via82xx_channel_reset(via82xx_t *chip, viadev_t *viadev)
|
|
{
|
|
outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET,
|
|
VIADEV_REG(viadev, OFFSET_CONTROL));
|
|
inb(VIADEV_REG(viadev, OFFSET_CONTROL));
|
|
udelay(50);
|
|
/* disable interrupts */
|
|
outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL));
|
|
/* clear interrupts */
|
|
outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS));
|
|
outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */
|
|
// outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR));
|
|
viadev->lastpos = 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Interrupt handler
|
|
*/
|
|
|
|
static irqreturn_t snd_via82xx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
|
|
{
|
|
via82xx_t *chip = dev_id;
|
|
unsigned int status;
|
|
unsigned int i;
|
|
|
|
status = inl(VIAREG(chip, SGD_SHADOW));
|
|
if (! (status & chip->intr_mask)) {
|
|
return IRQ_NONE;
|
|
}
|
|
// _skip_sgd:
|
|
|
|
/* check status for each stream */
|
|
spin_lock(&chip->reg_lock);
|
|
for (i = 0; i < chip->num_devs; i++) {
|
|
viadev_t *viadev = &chip->devs[i];
|
|
unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
|
|
c_status &= (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED);
|
|
if (! c_status)
|
|
continue;
|
|
if (viadev->substream && viadev->running) {
|
|
spin_unlock(&chip->reg_lock);
|
|
snd_pcm_period_elapsed(viadev->substream);
|
|
spin_lock(&chip->reg_lock);
|
|
}
|
|
outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
|
|
}
|
|
spin_unlock(&chip->reg_lock);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/*
|
|
* PCM callbacks
|
|
*/
|
|
|
|
/*
|
|
* trigger callback
|
|
*/
|
|
static int snd_via82xx_pcm_trigger(snd_pcm_substream_t * substream, int cmd)
|
|
{
|
|
via82xx_t *chip = snd_pcm_substream_chip(substream);
|
|
viadev_t *viadev = (viadev_t *)substream->runtime->private_data;
|
|
unsigned char val = 0;
|
|
|
|
switch (cmd) {
|
|
case SNDRV_PCM_TRIGGER_START:
|
|
val |= VIA_REG_CTRL_START;
|
|
viadev->running = 1;
|
|
break;
|
|
case SNDRV_PCM_TRIGGER_STOP:
|
|
val = VIA_REG_CTRL_TERMINATE;
|
|
viadev->running = 0;
|
|
break;
|
|
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
|
|
val |= VIA_REG_CTRL_PAUSE;
|
|
viadev->running = 0;
|
|
break;
|
|
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
|
|
viadev->running = 1;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
outb(val, VIADEV_REG(viadev, OFFSET_CONTROL));
|
|
if (cmd == SNDRV_PCM_TRIGGER_STOP)
|
|
snd_via82xx_channel_reset(chip, viadev);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_via82xx_modem_pcm_trigger(snd_pcm_substream_t * substream, int cmd)
|
|
{
|
|
via82xx_t *chip = snd_pcm_substream_chip(substream);
|
|
unsigned int val = 0;
|
|
switch (cmd) {
|
|
case SNDRV_PCM_TRIGGER_START:
|
|
val = snd_ac97_read(chip->ac97, AC97_GPIO_STATUS);
|
|
outl(val|AC97_GPIO_LINE1_OH, VIAREG(chip, GPI_STATUS));
|
|
break;
|
|
case SNDRV_PCM_TRIGGER_STOP:
|
|
val = snd_ac97_read(chip->ac97, AC97_GPIO_STATUS);
|
|
outl(val&~AC97_GPIO_LINE1_OH, VIAREG(chip, GPI_STATUS));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return snd_via82xx_pcm_trigger(substream, cmd);
|
|
}
|
|
|
|
/*
|
|
* pointer callbacks
|
|
*/
|
|
|
|
/*
|
|
* calculate the linear position at the given sg-buffer index and the rest count
|
|
*/
|
|
|
|
#define check_invalid_pos(viadev,pos) \
|
|
((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 || viadev->lastpos < viadev->bufsize2))
|
|
|
|
static inline unsigned int calc_linear_pos(viadev_t *viadev, unsigned int idx, unsigned int count)
|
|
{
|
|
unsigned int size, res;
|
|
|
|
size = viadev->idx_table[idx].size;
|
|
res = viadev->idx_table[idx].offset + size - count;
|
|
|
|
/* check the validity of the calculated position */
|
|
if (size < count) {
|
|
snd_printd(KERN_ERR "invalid via82xx_cur_ptr (size = %d, count = %d)\n", (int)size, (int)count);
|
|
res = viadev->lastpos;
|
|
} else if (check_invalid_pos(viadev, res)) {
|
|
#ifdef POINTER_DEBUG
|
|
printk("fail: idx = %i/%i, lastpos = 0x%x, bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, count = 0x%x\n", idx, viadev->tbl_entries, viadev->lastpos, viadev->bufsize2, viadev->idx_table[idx].offset, viadev->idx_table[idx].size, count);
|
|
#endif
|
|
if (count && size < count) {
|
|
snd_printd(KERN_ERR "invalid via82xx_cur_ptr, using last valid pointer\n");
|
|
res = viadev->lastpos;
|
|
} else {
|
|
if (! count)
|
|
/* bogus count 0 on the DMA boundary? */
|
|
res = viadev->idx_table[idx].offset;
|
|
else
|
|
/* count register returns full size when end of buffer is reached */
|
|
res = viadev->idx_table[idx].offset + size;
|
|
if (check_invalid_pos(viadev, res)) {
|
|
snd_printd(KERN_ERR "invalid via82xx_cur_ptr (2), using last valid pointer\n");
|
|
res = viadev->lastpos;
|
|
}
|
|
}
|
|
}
|
|
viadev->lastpos = res; /* remember the last position */
|
|
if (res >= viadev->bufsize)
|
|
res -= viadev->bufsize;
|
|
return res;
|
|
}
|
|
|
|
/*
|
|
* get the current pointer on via686
|
|
*/
|
|
static snd_pcm_uframes_t snd_via686_pcm_pointer(snd_pcm_substream_t *substream)
|
|
{
|
|
via82xx_t *chip = snd_pcm_substream_chip(substream);
|
|
viadev_t *viadev = (viadev_t *)substream->runtime->private_data;
|
|
unsigned int idx, ptr, count, res;
|
|
|
|
snd_assert(viadev->tbl_entries, return 0);
|
|
if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
|
|
return 0;
|
|
|
|
spin_lock(&chip->reg_lock);
|
|
count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff;
|
|
/* The via686a does not have the current index register,
|
|
* so we need to calculate the index from CURR_PTR.
|
|
*/
|
|
ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR));
|
|
if (ptr <= (unsigned int)viadev->table.addr)
|
|
idx = 0;
|
|
else /* CURR_PTR holds the address + 8 */
|
|
idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries;
|
|
res = calc_linear_pos(viadev, idx, count);
|
|
spin_unlock(&chip->reg_lock);
|
|
|
|
return bytes_to_frames(substream->runtime, res);
|
|
}
|
|
|
|
/*
|
|
* hw_params callback:
|
|
* allocate the buffer and build up the buffer description table
|
|
*/
|
|
static int snd_via82xx_hw_params(snd_pcm_substream_t * substream,
|
|
snd_pcm_hw_params_t * hw_params)
|
|
{
|
|
via82xx_t *chip = snd_pcm_substream_chip(substream);
|
|
viadev_t *viadev = (viadev_t *)substream->runtime->private_data;
|
|
int err;
|
|
|
|
err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
|
|
if (err < 0)
|
|
return err;
|
|
err = build_via_table(viadev, substream, chip->pci,
|
|
params_periods(hw_params),
|
|
params_period_bytes(hw_params));
|
|
if (err < 0)
|
|
return err;
|
|
|
|
snd_ac97_write(chip->ac97, AC97_LINE1_RATE, params_rate(hw_params));
|
|
snd_ac97_write(chip->ac97, AC97_LINE1_LEVEL, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* hw_free callback:
|
|
* clean up the buffer description table and release the buffer
|
|
*/
|
|
static int snd_via82xx_hw_free(snd_pcm_substream_t * substream)
|
|
{
|
|
via82xx_t *chip = snd_pcm_substream_chip(substream);
|
|
viadev_t *viadev = (viadev_t *)substream->runtime->private_data;
|
|
|
|
clean_via_table(viadev, substream, chip->pci);
|
|
snd_pcm_lib_free_pages(substream);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* set up the table pointer
|
|
*/
|
|
static void snd_via82xx_set_table_ptr(via82xx_t *chip, viadev_t *viadev)
|
|
{
|
|
snd_via82xx_codec_ready(chip, chip->ac97_secondary);
|
|
outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
|
|
udelay(20);
|
|
snd_via82xx_codec_ready(chip, chip->ac97_secondary);
|
|
}
|
|
|
|
/*
|
|
* prepare callback for playback and capture
|
|
*/
|
|
static int snd_via82xx_pcm_prepare(snd_pcm_substream_t *substream)
|
|
{
|
|
via82xx_t *chip = snd_pcm_substream_chip(substream);
|
|
viadev_t *viadev = (viadev_t *)substream->runtime->private_data;
|
|
|
|
snd_via82xx_channel_reset(chip, viadev);
|
|
/* this must be set after channel_reset */
|
|
snd_via82xx_set_table_ptr(chip, viadev);
|
|
outb(VIA_REG_TYPE_AUTOSTART|VIA_REG_TYPE_INT_EOL|VIA_REG_TYPE_INT_FLAG,
|
|
VIADEV_REG(viadev, OFFSET_TYPE));
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* pcm hardware definition, identical for both playback and capture
|
|
*/
|
|
static snd_pcm_hardware_t snd_via82xx_hw =
|
|
{
|
|
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
|
|
SNDRV_PCM_INFO_BLOCK_TRANSFER |
|
|
SNDRV_PCM_INFO_MMAP_VALID |
|
|
SNDRV_PCM_INFO_RESUME |
|
|
SNDRV_PCM_INFO_PAUSE),
|
|
.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
|
|
.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_KNOT,
|
|
.rate_min = 8000,
|
|
.rate_max = 16000,
|
|
.channels_min = 1,
|
|
.channels_max = 1,
|
|
.buffer_bytes_max = 128 * 1024,
|
|
.period_bytes_min = 32,
|
|
.period_bytes_max = 128 * 1024,
|
|
.periods_min = 2,
|
|
.periods_max = VIA_TABLE_SIZE / 2,
|
|
.fifo_size = 0,
|
|
};
|
|
|
|
|
|
/*
|
|
* open callback skeleton
|
|
*/
|
|
static int snd_via82xx_modem_pcm_open(via82xx_t *chip, viadev_t *viadev, snd_pcm_substream_t * substream)
|
|
{
|
|
snd_pcm_runtime_t *runtime = substream->runtime;
|
|
int err;
|
|
static unsigned int rates[] = { 8000, 9600, 12000, 16000 };
|
|
static snd_pcm_hw_constraint_list_t hw_constraints_rates = {
|
|
.count = ARRAY_SIZE(rates),
|
|
.list = rates,
|
|
.mask = 0,
|
|
};
|
|
|
|
runtime->hw = snd_via82xx_hw;
|
|
|
|
if ((err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates)) < 0)
|
|
return err;
|
|
|
|
/* we may remove following constaint when we modify table entries
|
|
in interrupt */
|
|
if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
|
|
return err;
|
|
|
|
runtime->private_data = viadev;
|
|
viadev->substream = substream;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* open callback for playback
|
|
*/
|
|
static int snd_via82xx_playback_open(snd_pcm_substream_t * substream)
|
|
{
|
|
via82xx_t *chip = snd_pcm_substream_chip(substream);
|
|
viadev_t *viadev = &chip->devs[chip->playback_devno + substream->number];
|
|
|
|
return snd_via82xx_modem_pcm_open(chip, viadev, substream);
|
|
}
|
|
|
|
/*
|
|
* open callback for capture
|
|
*/
|
|
static int snd_via82xx_capture_open(snd_pcm_substream_t * substream)
|
|
{
|
|
via82xx_t *chip = snd_pcm_substream_chip(substream);
|
|
viadev_t *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
|
|
|
|
return snd_via82xx_modem_pcm_open(chip, viadev, substream);
|
|
}
|
|
|
|
/*
|
|
* close callback
|
|
*/
|
|
static int snd_via82xx_pcm_close(snd_pcm_substream_t * substream)
|
|
{
|
|
viadev_t *viadev = (viadev_t *)substream->runtime->private_data;
|
|
|
|
viadev->substream = NULL;
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* via686 playback callbacks */
|
|
static snd_pcm_ops_t snd_via686_playback_ops = {
|
|
.open = snd_via82xx_playback_open,
|
|
.close = snd_via82xx_pcm_close,
|
|
.ioctl = snd_pcm_lib_ioctl,
|
|
.hw_params = snd_via82xx_hw_params,
|
|
.hw_free = snd_via82xx_hw_free,
|
|
.prepare = snd_via82xx_pcm_prepare,
|
|
.trigger = snd_via82xx_modem_pcm_trigger,
|
|
.pointer = snd_via686_pcm_pointer,
|
|
.page = snd_pcm_sgbuf_ops_page,
|
|
};
|
|
|
|
/* via686 capture callbacks */
|
|
static snd_pcm_ops_t snd_via686_capture_ops = {
|
|
.open = snd_via82xx_capture_open,
|
|
.close = snd_via82xx_pcm_close,
|
|
.ioctl = snd_pcm_lib_ioctl,
|
|
.hw_params = snd_via82xx_hw_params,
|
|
.hw_free = snd_via82xx_hw_free,
|
|
.prepare = snd_via82xx_pcm_prepare,
|
|
.trigger = snd_via82xx_modem_pcm_trigger,
|
|
.pointer = snd_via686_pcm_pointer,
|
|
.page = snd_pcm_sgbuf_ops_page,
|
|
};
|
|
|
|
|
|
static void init_viadev(via82xx_t *chip, int idx, unsigned int reg_offset, int direction)
|
|
{
|
|
chip->devs[idx].reg_offset = reg_offset;
|
|
chip->devs[idx].direction = direction;
|
|
chip->devs[idx].port = chip->port + reg_offset;
|
|
}
|
|
|
|
/*
|
|
* create a pcm instance for via686a/b
|
|
*/
|
|
static int __devinit snd_via686_pcm_new(via82xx_t *chip)
|
|
{
|
|
snd_pcm_t *pcm;
|
|
int err;
|
|
|
|
chip->playback_devno = 0;
|
|
chip->capture_devno = 1;
|
|
chip->num_devs = 2;
|
|
chip->intr_mask = 0x330000; /* FLAGS | EOL for MR, MW */
|
|
|
|
err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
|
|
if (err < 0)
|
|
return err;
|
|
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
|
|
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
|
|
pcm->private_data = chip;
|
|
strcpy(pcm->name, chip->card->shortname);
|
|
chip->pcms[0] = pcm;
|
|
init_viadev(chip, 0, VIA_REG_MO_STATUS, 0);
|
|
init_viadev(chip, 1, VIA_REG_MI_STATUS, 1);
|
|
|
|
if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
|
|
snd_dma_pci_data(chip->pci), 64*1024, 128*1024)) < 0)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Mixer part
|
|
*/
|
|
|
|
|
|
static void snd_via82xx_mixer_free_ac97_bus(ac97_bus_t *bus)
|
|
{
|
|
via82xx_t *chip = bus->private_data;
|
|
chip->ac97_bus = NULL;
|
|
}
|
|
|
|
static void snd_via82xx_mixer_free_ac97(ac97_t *ac97)
|
|
{
|
|
via82xx_t *chip = ac97->private_data;
|
|
chip->ac97 = NULL;
|
|
}
|
|
|
|
|
|
static int __devinit snd_via82xx_mixer_new(via82xx_t *chip)
|
|
{
|
|
ac97_template_t ac97;
|
|
int err;
|
|
static ac97_bus_ops_t ops = {
|
|
.write = snd_via82xx_codec_write,
|
|
.read = snd_via82xx_codec_read,
|
|
.wait = snd_via82xx_codec_wait,
|
|
};
|
|
|
|
if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
|
|
return err;
|
|
chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
|
|
chip->ac97_bus->clock = chip->ac97_clock;
|
|
chip->ac97_bus->shared_type = AC97_SHARED_TYPE_VIA;
|
|
|
|
memset(&ac97, 0, sizeof(ac97));
|
|
ac97.private_data = chip;
|
|
ac97.private_free = snd_via82xx_mixer_free_ac97;
|
|
ac97.pci = chip->pci;
|
|
ac97.scaps = AC97_SCAP_SKIP_AUDIO;
|
|
ac97.num = chip->ac97_secondary;
|
|
|
|
if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* proc interface
|
|
*/
|
|
static void snd_via82xx_proc_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer)
|
|
{
|
|
via82xx_t *chip = entry->private_data;
|
|
int i;
|
|
|
|
snd_iprintf(buffer, "%s\n\n", chip->card->longname);
|
|
for (i = 0; i < 0xa0; i += 4) {
|
|
snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
|
|
}
|
|
}
|
|
|
|
static void __devinit snd_via82xx_proc_init(via82xx_t *chip)
|
|
{
|
|
snd_info_entry_t *entry;
|
|
|
|
if (! snd_card_proc_new(chip->card, "via82xx", &entry))
|
|
snd_info_set_text_ops(entry, chip, 1024, snd_via82xx_proc_read);
|
|
}
|
|
|
|
/*
|
|
*
|
|
*/
|
|
|
|
static int snd_via82xx_chip_init(via82xx_t *chip)
|
|
{
|
|
unsigned int val;
|
|
int max_count;
|
|
unsigned char pval;
|
|
|
|
pci_read_config_byte(chip->pci, VIA_MC97_CTRL, &pval);
|
|
if((pval & VIA_MC97_CTRL_INIT) != VIA_MC97_CTRL_INIT) {
|
|
pci_write_config_byte(chip->pci, 0x44, pval|VIA_MC97_CTRL_INIT);
|
|
udelay(100);
|
|
}
|
|
|
|
pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
|
|
if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
|
|
/* deassert ACLink reset, force SYNC */
|
|
pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
|
|
VIA_ACLINK_CTRL_ENABLE |
|
|
VIA_ACLINK_CTRL_RESET |
|
|
VIA_ACLINK_CTRL_SYNC);
|
|
udelay(100);
|
|
#if 1 /* FIXME: should we do full reset here for all chip models? */
|
|
pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
|
|
udelay(100);
|
|
#else
|
|
/* deassert ACLink reset, force SYNC (warm AC'97 reset) */
|
|
pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
|
|
VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
|
|
udelay(2);
|
|
#endif
|
|
/* ACLink on, deassert ACLink reset, VSR, SGD data out */
|
|
pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
|
|
udelay(100);
|
|
}
|
|
|
|
pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
|
|
if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
|
|
/* ACLink on, deassert ACLink reset, VSR, SGD data out */
|
|
pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
|
|
udelay(100);
|
|
}
|
|
|
|
/* wait until codec ready */
|
|
max_count = ((3 * HZ) / 4) + 1;
|
|
do {
|
|
pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
|
|
if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
|
|
break;
|
|
set_current_state(TASK_UNINTERRUPTIBLE);
|
|
schedule_timeout(1);
|
|
} while (--max_count > 0);
|
|
|
|
if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
|
|
snd_printk("AC'97 codec is not ready [0x%x]\n", val);
|
|
|
|
snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
|
|
VIA_REG_AC97_SECONDARY_VALID |
|
|
(VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
|
|
max_count = ((3 * HZ) / 4) + 1;
|
|
snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
|
|
VIA_REG_AC97_SECONDARY_VALID |
|
|
(VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
|
|
do {
|
|
if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
|
|
chip->ac97_secondary = 1;
|
|
goto __ac97_ok2;
|
|
}
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
|
schedule_timeout(1);
|
|
} while (--max_count > 0);
|
|
/* This is ok, the most of motherboards have only one codec */
|
|
|
|
__ac97_ok2:
|
|
|
|
/* route FM trap to IRQ, disable FM trap */
|
|
// pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
|
|
/* disable all GPI interrupts */
|
|
outl(0, VIAREG(chip, GPI_INTR));
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
/*
|
|
* power management
|
|
*/
|
|
static int snd_via82xx_suspend(snd_card_t *card, pm_message_t state)
|
|
{
|
|
via82xx_t *chip = card->pm_private_data;
|
|
int i;
|
|
|
|
for (i = 0; i < 2; i++)
|
|
if (chip->pcms[i])
|
|
snd_pcm_suspend_all(chip->pcms[i]);
|
|
for (i = 0; i < chip->num_devs; i++)
|
|
snd_via82xx_channel_reset(chip, &chip->devs[i]);
|
|
synchronize_irq(chip->irq);
|
|
snd_ac97_suspend(chip->ac97);
|
|
pci_set_power_state(chip->pci, 3);
|
|
pci_disable_device(chip->pci);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_via82xx_resume(snd_card_t *card)
|
|
{
|
|
via82xx_t *chip = card->pm_private_data;
|
|
int i;
|
|
|
|
pci_enable_device(chip->pci);
|
|
pci_set_power_state(chip->pci, 0);
|
|
pci_set_master(chip->pci);
|
|
|
|
snd_via82xx_chip_init(chip);
|
|
|
|
snd_ac97_resume(chip->ac97);
|
|
|
|
for (i = 0; i < chip->num_devs; i++)
|
|
snd_via82xx_channel_reset(chip, &chip->devs[i]);
|
|
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_PM */
|
|
|
|
static int snd_via82xx_free(via82xx_t *chip)
|
|
{
|
|
unsigned int i;
|
|
|
|
if (chip->irq < 0)
|
|
goto __end_hw;
|
|
/* disable interrupts */
|
|
for (i = 0; i < chip->num_devs; i++)
|
|
snd_via82xx_channel_reset(chip, &chip->devs[i]);
|
|
synchronize_irq(chip->irq);
|
|
__end_hw:
|
|
if (chip->irq >= 0)
|
|
free_irq(chip->irq, (void *)chip);
|
|
pci_release_regions(chip->pci);
|
|
pci_disable_device(chip->pci);
|
|
kfree(chip);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_via82xx_dev_free(snd_device_t *device)
|
|
{
|
|
via82xx_t *chip = device->device_data;
|
|
return snd_via82xx_free(chip);
|
|
}
|
|
|
|
static int __devinit snd_via82xx_create(snd_card_t * card,
|
|
struct pci_dev *pci,
|
|
int chip_type,
|
|
int revision,
|
|
unsigned int ac97_clock,
|
|
via82xx_t ** r_via)
|
|
{
|
|
via82xx_t *chip;
|
|
int err;
|
|
static snd_device_ops_t ops = {
|
|
.dev_free = snd_via82xx_dev_free,
|
|
};
|
|
|
|
if ((err = pci_enable_device(pci)) < 0)
|
|
return err;
|
|
|
|
if ((chip = kcalloc(1, sizeof(*chip), GFP_KERNEL)) == NULL) {
|
|
pci_disable_device(pci);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
spin_lock_init(&chip->reg_lock);
|
|
chip->card = card;
|
|
chip->pci = pci;
|
|
chip->irq = -1;
|
|
|
|
if ((err = pci_request_regions(pci, card->driver)) < 0) {
|
|
kfree(chip);
|
|
pci_disable_device(pci);
|
|
return err;
|
|
}
|
|
chip->port = pci_resource_start(pci, 0);
|
|
if (request_irq(pci->irq, snd_via82xx_interrupt, SA_INTERRUPT|SA_SHIRQ,
|
|
card->driver, (void *)chip)) {
|
|
snd_printk("unable to grab IRQ %d\n", pci->irq);
|
|
snd_via82xx_free(chip);
|
|
return -EBUSY;
|
|
}
|
|
chip->irq = pci->irq;
|
|
if (ac97_clock >= 8000 && ac97_clock <= 48000)
|
|
chip->ac97_clock = ac97_clock;
|
|
synchronize_irq(chip->irq);
|
|
|
|
if ((err = snd_via82xx_chip_init(chip)) < 0) {
|
|
snd_via82xx_free(chip);
|
|
return err;
|
|
}
|
|
|
|
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
|
|
snd_via82xx_free(chip);
|
|
return err;
|
|
}
|
|
|
|
/* The 8233 ac97 controller does not implement the master bit
|
|
* in the pci command register. IMHO this is a violation of the PCI spec.
|
|
* We call pci_set_master here because it does not hurt. */
|
|
pci_set_master(pci);
|
|
|
|
snd_card_set_dev(card, &pci->dev);
|
|
|
|
*r_via = chip;
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int __devinit snd_via82xx_probe(struct pci_dev *pci,
|
|
const struct pci_device_id *pci_id)
|
|
{
|
|
static int dev;
|
|
snd_card_t *card;
|
|
via82xx_t *chip;
|
|
unsigned char revision;
|
|
int chip_type = 0, card_type;
|
|
unsigned int i;
|
|
int err;
|
|
|
|
if (dev >= SNDRV_CARDS)
|
|
return -ENODEV;
|
|
if (!enable[dev]) {
|
|
dev++;
|
|
return -ENOENT;
|
|
}
|
|
|
|
card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
|
|
if (card == NULL)
|
|
return -ENOMEM;
|
|
|
|
card_type = pci_id->driver_data;
|
|
pci_read_config_byte(pci, PCI_REVISION_ID, &revision);
|
|
switch (card_type) {
|
|
case TYPE_CARD_VIA82XX_MODEM:
|
|
strcpy(card->driver, "VIA82XX-MODEM");
|
|
sprintf(card->shortname, "VIA 82XX modem");
|
|
break;
|
|
default:
|
|
snd_printk(KERN_ERR "invalid card type %d\n", card_type);
|
|
err = -EINVAL;
|
|
goto __error;
|
|
}
|
|
|
|
if ((err = snd_via82xx_create(card, pci, chip_type, revision, ac97_clock[dev], &chip)) < 0)
|
|
goto __error;
|
|
if ((err = snd_via82xx_mixer_new(chip)) < 0)
|
|
goto __error;
|
|
|
|
if ((err = snd_via686_pcm_new(chip)) < 0 )
|
|
goto __error;
|
|
|
|
snd_card_set_pm_callback(card, snd_via82xx_suspend, snd_via82xx_resume, chip);
|
|
|
|
/* disable interrupts */
|
|
for (i = 0; i < chip->num_devs; i++)
|
|
snd_via82xx_channel_reset(chip, &chip->devs[i]);
|
|
|
|
sprintf(card->longname, "%s at 0x%lx, irq %d",
|
|
card->shortname, chip->port, chip->irq);
|
|
|
|
snd_via82xx_proc_init(chip);
|
|
|
|
if ((err = snd_card_register(card)) < 0) {
|
|
snd_card_free(card);
|
|
return err;
|
|
}
|
|
pci_set_drvdata(pci, card);
|
|
dev++;
|
|
return 0;
|
|
|
|
__error:
|
|
snd_card_free(card);
|
|
return err;
|
|
}
|
|
|
|
static void __devexit snd_via82xx_remove(struct pci_dev *pci)
|
|
{
|
|
snd_card_free(pci_get_drvdata(pci));
|
|
pci_set_drvdata(pci, NULL);
|
|
}
|
|
|
|
static struct pci_driver driver = {
|
|
.name = "VIA 82xx Modem",
|
|
.id_table = snd_via82xx_modem_ids,
|
|
.probe = snd_via82xx_probe,
|
|
.remove = __devexit_p(snd_via82xx_remove),
|
|
SND_PCI_PM_CALLBACKS
|
|
};
|
|
|
|
static int __init alsa_card_via82xx_init(void)
|
|
{
|
|
return pci_register_driver(&driver);
|
|
}
|
|
|
|
static void __exit alsa_card_via82xx_exit(void)
|
|
{
|
|
pci_unregister_driver(&driver);
|
|
}
|
|
|
|
module_init(alsa_card_via82xx_init)
|
|
module_exit(alsa_card_via82xx_exit)
|