xref: /openbmc/linux/sound/ppc/pmac.h (revision d5cb9783536a41df9f9cba5b0a1d78047ed787f7)
1 /*
2  * Driver for PowerMac onboard soundchips
3  * Copyright (c) 2001 by Takashi Iwai <tiwai@suse.de>
4  *   based on dmasound.c.
5  *
6  *   This program is free software; you can redistribute it and/or modify
7  *   it under the terms of the GNU General Public License as published by
8  *   the Free Software Foundation; either version 2 of the License, or
9  *   (at your option) any later version.
10  *
11  *   This program is distributed in the hope that it will be useful,
12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *   GNU General Public License for more details.
15  *
16  *   You should have received a copy of the GNU General Public License
17  *   along with this program; if not, write to the Free Software
18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19  */
20 
21 
22 #ifndef __PMAC_H
23 #define __PMAC_H
24 
25 #include <linux/version.h>
26 #include <sound/control.h>
27 #include <sound/pcm.h>
28 #include "awacs.h"
29 
30 #include <linux/adb.h>
31 #ifdef CONFIG_ADB_CUDA
32 #include <linux/cuda.h>
33 #endif
34 #ifdef CONFIG_ADB_PMU
35 #include <linux/pmu.h>
36 #endif
37 #include <linux/nvram.h>
38 #include <linux/tty.h>
39 #include <linux/vt_kern.h>
40 #include <asm/dbdma.h>
41 #include <asm/prom.h>
42 #include <asm/machdep.h>
43 
44 /* maximum number of fragments */
45 #define PMAC_MAX_FRAGS		32
46 
47 
48 #define PMAC_SUPPORT_AUTOMUTE
49 
50 /*
51  * typedefs
52  */
53 typedef struct snd_pmac pmac_t;
54 typedef struct snd_pmac_stream pmac_stream_t;
55 typedef struct snd_pmac_beep pmac_beep_t;
56 typedef struct snd_pmac_dbdma pmac_dbdma_t;
57 
58 
59 /*
60  * DBDMA space
61  */
62 struct snd_pmac_dbdma {
63 	dma_addr_t dma_base;
64 	dma_addr_t addr;
65 	struct dbdma_cmd __iomem *cmds;
66 	void *space;
67 	int size;
68 };
69 
70 /*
71  * playback/capture stream
72  */
73 struct snd_pmac_stream {
74 	int running;	/* boolean */
75 
76 	int stream;	/* PLAYBACK/CAPTURE */
77 
78 	int dma_size; /* in bytes */
79 	int period_size; /* in bytes */
80 	int buffer_size; /* in kbytes */
81 	int nperiods, cur_period;
82 
83 	pmac_dbdma_t cmd;
84 	volatile struct dbdma_regs __iomem *dma;
85 
86 	snd_pcm_substream_t *substream;
87 
88 	unsigned int cur_freqs;		/* currently available frequencies */
89 	unsigned int cur_formats;	/* currently available formats */
90 };
91 
92 
93 /*
94  */
95 
96 enum snd_pmac_model {
97 	PMAC_AWACS, PMAC_SCREAMER, PMAC_BURGUNDY, PMAC_DACA, PMAC_TUMBLER,
98 	PMAC_SNAPPER, PMAC_TOONIE
99 };
100 
101 struct snd_pmac {
102 	snd_card_t *card;
103 
104 	/* h/w info */
105 	struct device_node *node;
106 	struct pci_dev *pdev;
107 	unsigned int revision;
108 	unsigned int manufacturer;
109 	unsigned int subframe;
110 	unsigned int device_id;
111 	enum snd_pmac_model model;
112 
113 	unsigned int has_iic : 1;
114 	unsigned int is_pbook_3400 : 1;
115 	unsigned int is_pbook_G3 : 1;
116 	unsigned int is_k2 : 1;
117 
118 	unsigned int can_byte_swap : 1;
119 	unsigned int can_duplex : 1;
120 	unsigned int can_capture : 1;
121 
122 	unsigned int auto_mute : 1;
123 	unsigned int initialized : 1;
124 	unsigned int feature_is_set : 1;
125 
126 	unsigned int of_requested;
127 
128 	int num_freqs;
129 	int *freq_table;
130 	unsigned int freqs_ok;		/* bit flags */
131 	unsigned int formats_ok;	/* pcm hwinfo */
132 	int active;
133 	int rate_index;
134 	int format;			/* current format */
135 
136 	spinlock_t reg_lock;
137 	volatile struct awacs_regs __iomem *awacs;
138 	int awacs_reg[8]; /* register cache */
139 	unsigned int hp_stat_mask;
140 
141 	unsigned char __iomem *latch_base;
142 	unsigned char __iomem *macio_base;
143 
144 	pmac_stream_t playback;
145 	pmac_stream_t capture;
146 
147 	pmac_dbdma_t extra_dma;
148 
149 	int irq, tx_irq, rx_irq;
150 
151 	snd_pcm_t *pcm;
152 
153 	pmac_beep_t *beep;
154 
155 	unsigned int control_mask;	/* control mask */
156 
157 	/* mixer stuffs */
158 	void *mixer_data;
159 	void (*mixer_free)(pmac_t *);
160 	snd_kcontrol_t *master_sw_ctl;
161 	snd_kcontrol_t *speaker_sw_ctl;
162 	snd_kcontrol_t *drc_sw_ctl;	/* only used for tumbler -ReneR */
163 	snd_kcontrol_t *hp_detect_ctl;
164 	snd_kcontrol_t *lineout_sw_ctl;
165 
166 	/* lowlevel callbacks */
167 	void (*set_format)(pmac_t *chip);
168 	void (*update_automute)(pmac_t *chip, int do_notify);
169 	int (*detect_headphone)(pmac_t *chip);
170 #ifdef CONFIG_PM
171 	void (*suspend)(pmac_t *chip);
172 	void (*resume)(pmac_t *chip);
173 #endif
174 
175 };
176 
177 
178 /* exported functions */
179 int snd_pmac_new(snd_card_t *card, pmac_t **chip_return);
180 int snd_pmac_pcm_new(pmac_t *chip);
181 int snd_pmac_attach_beep(pmac_t *chip);
182 void snd_pmac_detach_beep(pmac_t *chip);
183 void snd_pmac_beep_stop(pmac_t *chip);
184 unsigned int snd_pmac_rate_index(pmac_t *chip, pmac_stream_t *rec, unsigned int rate);
185 
186 void snd_pmac_beep_dma_start(pmac_t *chip, int bytes, unsigned long addr, int speed);
187 void snd_pmac_beep_dma_stop(pmac_t *chip);
188 
189 /* initialize mixer */
190 int snd_pmac_awacs_init(pmac_t *chip);
191 int snd_pmac_burgundy_init(pmac_t *chip);
192 int snd_pmac_daca_init(pmac_t *chip);
193 int snd_pmac_tumbler_init(pmac_t *chip);
194 int snd_pmac_tumbler_post_init(void);
195 int snd_pmac_toonie_init(pmac_t *chip);
196 
197 /* i2c functions */
198 typedef struct snd_pmac_keywest {
199 	int addr;
200 	struct i2c_client *client;
201 	int id;
202 	int (*init_client)(struct snd_pmac_keywest *i2c);
203 	char *name;
204 } pmac_keywest_t;
205 
206 int snd_pmac_keywest_init(pmac_keywest_t *i2c);
207 void snd_pmac_keywest_cleanup(pmac_keywest_t *i2c);
208 
209 /* misc */
210 int snd_pmac_boolean_stereo_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo);
211 int snd_pmac_boolean_mono_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo);
212 
213 int snd_pmac_add_automute(pmac_t *chip);
214 
215 #endif /* __PMAC_H */
216