Linux kernel & device driver programming

Cross-Referenced Linux and Device Driver Code

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Version: [ 2.6.11.8 ] [ 2.6.25 ] [ 2.6.25.8 ] [ 2.6.31.13 ] Architecture: [ i386 ]
  1 #ifndef __SOUND_CS4231_H
  2 #define __SOUND_CS4231_H
  3 
  4 /*
  5  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
  6  *  Definitions for CS4231 & InterWave chips & compatible chips
  7  *
  8  *
  9  *   This program is free software; you can redistribute it and/or modify
 10  *   it under the terms of the GNU General Public License as published by
 11  *   the Free Software Foundation; either version 2 of the License, or
 12  *   (at your option) any later version.
 13  *
 14  *   This program is distributed in the hope that it will be useful,
 15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 17  *   GNU General Public License for more details.
 18  *
 19  *   You should have received a copy of the GNU General Public License
 20  *   along with this program; if not, write to the Free Software
 21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 22  *
 23  */
 24 
 25 #include "control.h"
 26 #include "pcm.h"
 27 #include "timer.h"
 28 
 29 #include "cs4231-regs.h"
 30 
 31 /* defines for codec.mode */
 32 
 33 #define CS4231_MODE_NONE        0x0000
 34 #define CS4231_MODE_PLAY        0x0001
 35 #define CS4231_MODE_RECORD      0x0002
 36 #define CS4231_MODE_TIMER       0x0004
 37 #define CS4231_MODE_OPEN        (CS4231_MODE_PLAY|CS4231_MODE_RECORD|CS4231_MODE_TIMER)
 38 
 39 /* defines for codec.hardware */
 40 
 41 #define CS4231_HW_DETECT        0x0000  /* let CS4231 driver detect chip */
 42 #define CS4231_HW_DETECT3       0x0001  /* allow mode 3 */
 43 #define CS4231_HW_TYPE_MASK     0xff00  /* type mask */
 44 #define CS4231_HW_CS4231_MASK   0x0100  /* CS4231 serie */
 45 #define CS4231_HW_CS4231        0x0100  /* CS4231 chip */
 46 #define CS4231_HW_CS4231A       0x0101  /* CS4231A chip */
 47 #define CS4231_HW_AD1845        0x0102  /* AD1845 chip */
 48 #define CS4231_HW_CS4232_MASK   0x0200  /* CS4232 serie (has control ports) */
 49 #define CS4231_HW_CS4232        0x0200  /* CS4232 */
 50 #define CS4231_HW_CS4232A       0x0201  /* CS4232A */
 51 #define CS4231_HW_CS4236        0x0202  /* CS4236 */
 52 #define CS4231_HW_CS4236B_MASK  0x0400  /* CS4236B serie (has extended control regs) */
 53 #define CS4231_HW_CS4235        0x0400  /* CS4235 - Crystal Clear (tm) stereo enhancement */
 54 #define CS4231_HW_CS4236B       0x0401  /* CS4236B */
 55 #define CS4231_HW_CS4237B       0x0402  /* CS4237B - SRS 3D */
 56 #define CS4231_HW_CS4238B       0x0403  /* CS4238B - QSOUND 3D */
 57 #define CS4231_HW_CS4239        0x0404  /* CS4239 - Crystal Clear (tm) stereo enhancement */
 58 /* compatible, but clones */
 59 #define CS4231_HW_INTERWAVE     0x1000  /* InterWave chip */
 60 #define CS4231_HW_OPL3SA2       0x1101  /* OPL3-SA2 chip, similar to cs4231 */
 61 
 62 /* defines for codec.hwshare */
 63 #define CS4231_HWSHARE_IRQ      (1<<0)
 64 #define CS4231_HWSHARE_DMA1     (1<<1)
 65 #define CS4231_HWSHARE_DMA2     (1<<2)
 66 
 67 struct snd_cs4231 {
 68         unsigned long port;             /* base i/o port */
 69         struct resource *res_port;
 70         unsigned long cport;            /* control base i/o port (CS4236) */
 71         struct resource *res_cport;
 72         int irq;                        /* IRQ line */
 73         int dma1;                       /* playback DMA */
 74         int dma2;                       /* record DMA */
 75         unsigned short version;         /* version of CODEC chip */
 76         unsigned short mode;            /* see to CS4231_MODE_XXXX */
 77         unsigned short hardware;        /* see to CS4231_HW_XXXX */
 78         unsigned short hwshare;         /* shared resources */
 79         unsigned short single_dma:1,    /* forced single DMA mode (GUS 16-bit daughter board) or dma1 == dma2 */
 80                        ebus_flag:1;     /* SPARC: EBUS present */
 81 
 82         struct snd_card *card;
 83         struct snd_pcm *pcm;
 84         struct snd_pcm_substream *playback_substream;
 85         struct snd_pcm_substream *capture_substream;
 86         struct snd_timer *timer;
 87 
 88         unsigned char image[32];        /* registers image */
 89         unsigned char eimage[32];       /* extended registers image */
 90         unsigned char cimage[16];       /* control registers image */
 91         int mce_bit;
 92         int calibrate_mute;
 93         int sw_3d_bit;
 94         unsigned int p_dma_size;
 95         unsigned int c_dma_size;
 96 
 97         spinlock_t reg_lock;
 98         struct mutex mce_mutex;
 99         struct mutex open_mutex;
100 
101         int (*rate_constraint) (struct snd_pcm_runtime *runtime);
102         void (*set_playback_format) (struct snd_cs4231 *chip, struct snd_pcm_hw_params *hw_params, unsigned char pdfr);
103         void (*set_capture_format) (struct snd_cs4231 *chip, struct snd_pcm_hw_params *hw_params, unsigned char cdfr);
104         void (*trigger) (struct snd_cs4231 *chip, unsigned int what, int start);
105 #ifdef CONFIG_PM
106         void (*suspend) (struct snd_cs4231 *chip);
107         void (*resume) (struct snd_cs4231 *chip);
108 #endif
109         void *dma_private_data;
110         int (*claim_dma) (struct snd_cs4231 *chip, void *dma_private_data, int dma);
111         int (*release_dma) (struct snd_cs4231 *chip, void *dma_private_data, int dma);
112 };
113 
114 /* exported functions */
115 
116 void snd_cs4231_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char val);
117 unsigned char snd_cs4231_in(struct snd_cs4231 *chip, unsigned char reg);
118 void snd_cs4236_ext_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char val);
119 unsigned char snd_cs4236_ext_in(struct snd_cs4231 *chip, unsigned char reg);
120 void snd_cs4231_mce_up(struct snd_cs4231 *chip);
121 void snd_cs4231_mce_down(struct snd_cs4231 *chip);
122 
123 irqreturn_t snd_cs4231_interrupt(int irq, void *dev_id);
124 
125 const char *snd_cs4231_chip_id(struct snd_cs4231 *chip);
126 
127 int snd_cs4231_create(struct snd_card *card,
128                       unsigned long port,
129                       unsigned long cport,
130                       int irq, int dma1, int dma2,
131                       unsigned short hardware,
132                       unsigned short hwshare,
133                       struct snd_cs4231 ** rchip);
134 int snd_cs4231_pcm(struct snd_cs4231 * chip, int device, struct snd_pcm **rpcm);
135 int snd_cs4231_timer(struct snd_cs4231 * chip, int device, struct snd_timer **rtimer);
136 int snd_cs4231_mixer(struct snd_cs4231 * chip);
137 
138 int snd_cs4236_create(struct snd_card *card,
139                       unsigned long port,
140                       unsigned long cport,
141                       int irq, int dma1, int dma2,
142                       unsigned short hardware,
143                       unsigned short hwshare,
144                       struct snd_cs4231 ** rchip);
145 int snd_cs4236_pcm(struct snd_cs4231 * chip, int device, struct snd_pcm **rpcm);
146 int snd_cs4236_mixer(struct snd_cs4231 * chip);
147 
148 /*
149  *  mixer library
150  */
151 
152 #define CS4231_SINGLE(xname, xindex, reg, shift, mask, invert) \
153 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
154   .info = snd_cs4231_info_single, \
155   .get = snd_cs4231_get_single, .put = snd_cs4231_put_single, \
156   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
157 
158 int snd_cs4231_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo);
159 int snd_cs4231_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
160 int snd_cs4231_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
161 
162 #define CS4231_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
163 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
164   .info = snd_cs4231_info_double, \
165   .get = snd_cs4231_get_double, .put = snd_cs4231_put_double, \
166   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
167 
168 int snd_cs4231_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo);
169 int snd_cs4231_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
170 int snd_cs4231_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
171 
172 #endif /* __SOUND_CS4231_H */
173 
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