--- /dev/null
+#ifndef __SOUND_CS4231_H
+#define __SOUND_CS4231_H
+
+/*
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
+ * Definitions for CS4231 & InterWave chips & compatible chips
+ *
+ *
+ * This program 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 program 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 "control.h"
+#include "pcm.h"
+#include "timer.h"
+
+#include "cs4231-regs.h"
+
+/* defines for codec.mode */
+
+#define CS4231_MODE_NONE 0x0000
+#define CS4231_MODE_PLAY 0x0001
+#define CS4231_MODE_RECORD 0x0002
+#define CS4231_MODE_TIMER 0x0004
+#define CS4231_MODE_OPEN (CS4231_MODE_PLAY|CS4231_MODE_RECORD|CS4231_MODE_TIMER)
+
+/* defines for codec.hardware */
+
+#define CS4231_HW_DETECT 0x0000 /* let CS4231 driver detect chip */
+#define CS4231_HW_DETECT3 0x0001 /* allow mode 3 */
+#define CS4231_HW_TYPE_MASK 0xff00 /* type mask */
+#define CS4231_HW_CS4231_MASK 0x0100 /* CS4231 serie */
+#define CS4231_HW_CS4231 0x0100 /* CS4231 chip */
+#define CS4231_HW_CS4231A 0x0101 /* CS4231A chip */
+#define CS4231_HW_AD1845 0x0102 /* AD1845 chip */
+#define CS4231_HW_CS4232_MASK 0x0200 /* CS4232 serie (has control ports) */
+#define CS4231_HW_CS4232 0x0200 /* CS4232 */
+#define CS4231_HW_CS4232A 0x0201 /* CS4232A */
+#define CS4231_HW_CS4236 0x0202 /* CS4236 */
+#define CS4231_HW_CS4236B_MASK 0x0400 /* CS4236B serie (has extended control regs) */
+#define CS4231_HW_CS4235 0x0400 /* CS4235 - Crystal Clear (tm) stereo enhancement */
+#define CS4231_HW_CS4236B 0x0401 /* CS4236B */
+#define CS4231_HW_CS4237B 0x0402 /* CS4237B - SRS 3D */
+#define CS4231_HW_CS4238B 0x0403 /* CS4238B - QSOUND 3D */
+#define CS4231_HW_CS4239 0x0404 /* CS4239 - Crystal Clear (tm) stereo enhancement */
+/* compatible, but clones */
+#define CS4231_HW_INTERWAVE 0x1000 /* InterWave chip */
+#define CS4231_HW_OPL3SA2 0x1101 /* OPL3-SA2 chip, similar to cs4231 */
+#define CS4231_HW_OPTI93X 0x1102 /* Opti 930/931/933 */
+
+/* defines for codec.hwshare */
+#define CS4231_HWSHARE_IRQ (1<<0)
+#define CS4231_HWSHARE_DMA1 (1<<1)
+#define CS4231_HWSHARE_DMA2 (1<<2)
+
+struct snd_cs4231 {
+ unsigned long port; /* base i/o port */
+ struct resource *res_port;
+ unsigned long cport; /* control base i/o port (CS4236) */
+ struct resource *res_cport;
+ int irq; /* IRQ line */
+ int dma1; /* playback DMA */
+ int dma2; /* record DMA */
+ unsigned short version; /* version of CODEC chip */
+ unsigned short mode; /* see to CS4231_MODE_XXXX */
+ unsigned short hardware; /* see to CS4231_HW_XXXX */
+ unsigned short hwshare; /* shared resources */
+ unsigned short single_dma:1, /* forced single DMA mode (GUS 16-bit daughter board) or dma1 == dma2 */
+ ebus_flag:1; /* SPARC: EBUS present */
+
+ struct snd_card *card;
+ struct snd_pcm *pcm;
+ struct snd_pcm_substream *playback_substream;
+ struct snd_pcm_substream *capture_substream;
+ struct snd_timer *timer;
+
+ unsigned char image[32]; /* registers image */
+ unsigned char eimage[32]; /* extended registers image */
+ unsigned char cimage[16]; /* control registers image */
+ int mce_bit;
+ int calibrate_mute;
+ int sw_3d_bit;
+ unsigned int p_dma_size;
+ unsigned int c_dma_size;
+
+ spinlock_t reg_lock;
+ struct mutex mce_mutex;
+ struct mutex open_mutex;
+
+ int (*rate_constraint) (struct snd_pcm_runtime *runtime);
+ void (*set_playback_format) (struct snd_cs4231 *chip, struct snd_pcm_hw_params *hw_params, unsigned char pdfr);
+ void (*set_capture_format) (struct snd_cs4231 *chip, struct snd_pcm_hw_params *hw_params, unsigned char cdfr);
+ void (*trigger) (struct snd_cs4231 *chip, unsigned int what, int start);
+#ifdef CONFIG_PM
+ void (*suspend) (struct snd_cs4231 *chip);
+ void (*resume) (struct snd_cs4231 *chip);
+#endif
+ void *dma_private_data;
+ int (*claim_dma) (struct snd_cs4231 *chip, void *dma_private_data, int dma);
+ int (*release_dma) (struct snd_cs4231 *chip, void *dma_private_data, int dma);
+};
+
+/* exported functions */
+
+void snd_cs4231_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char val);
+unsigned char snd_cs4231_in(struct snd_cs4231 *chip, unsigned char reg);
+void snd_cs4236_ext_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char val);
+unsigned char snd_cs4236_ext_in(struct snd_cs4231 *chip, unsigned char reg);
+void snd_cs4231_mce_up(struct snd_cs4231 *chip);
+void snd_cs4231_mce_down(struct snd_cs4231 *chip);
+
+void snd_cs4231_overrange(struct snd_cs4231 *chip);
+
+irqreturn_t snd_cs4231_interrupt(int irq, void *dev_id);
+
+const char *snd_cs4231_chip_id(struct snd_cs4231 *chip);
+
+int snd_cs4231_create(struct snd_card *card,
+ unsigned long port,
+ unsigned long cport,
+ int irq, int dma1, int dma2,
+ unsigned short hardware,
+ unsigned short hwshare,
+ struct snd_cs4231 ** rchip);
+int snd_cs4231_pcm(struct snd_cs4231 * chip, int device, struct snd_pcm **rpcm);
+int snd_cs4231_timer(struct snd_cs4231 * chip, int device, struct snd_timer **rtimer);
+int snd_cs4231_mixer(struct snd_cs4231 * chip);
+
+int snd_cs4236_create(struct snd_card *card,
+ unsigned long port,
+ unsigned long cport,
+ int irq, int dma1, int dma2,
+ unsigned short hardware,
+ unsigned short hwshare,
+ struct snd_cs4231 ** rchip);
+int snd_cs4236_pcm(struct snd_cs4231 * chip, int device, struct snd_pcm **rpcm);
+int snd_cs4236_mixer(struct snd_cs4231 * chip);
+
+/*
+ * mixer library
+ */
+
+#define CS4231_SINGLE(xname, xindex, reg, shift, mask, invert) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
+ .info = snd_cs4231_info_single, \
+ .get = snd_cs4231_get_single, .put = snd_cs4231_put_single, \
+ .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
+
+int snd_cs4231_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo);
+int snd_cs4231_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
+int snd_cs4231_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
+
+#define CS4231_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
+ .info = snd_cs4231_info_double, \
+ .get = snd_cs4231_get_double, .put = snd_cs4231_put_double, \
+ .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
+
+int snd_cs4231_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo);
+int snd_cs4231_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
+int snd_cs4231_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
+
+#endif /* __SOUND_CS4231_H */
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