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 /*
  2  *  The driver for the Cirrus Logic's Sound Fusion CS46XX based soundcards
  3  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
  4  *
  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 __CS46XX_LIB_H__
 23 #define __CS46XX_LIB_H__
 24 
 25 /*
 26  *  constants
 27  */
 28 
 29 #define CS46XX_BA0_SIZE           0x1000
 30 #define CS46XX_BA1_DATA0_SIZE 0x3000
 31 #define CS46XX_BA1_DATA1_SIZE 0x3800
 32 #define CS46XX_BA1_PRG_SIZE       0x7000
 33 #define CS46XX_BA1_REG_SIZE       0x0100
 34 
 35 
 36 
 37 #ifdef CONFIG_SND_CS46XX_NEW_DSP
 38 #define CS46XX_MIN_PERIOD_SIZE 64
 39 #define CS46XX_MAX_PERIOD_SIZE 1024*1024
 40 #else
 41 #define CS46XX_MIN_PERIOD_SIZE 2048
 42 #define CS46XX_MAX_PERIOD_SIZE 2048
 43 #endif
 44 
 45 #define CS46XX_FRAGS 2
 46 /* #define CS46XX_BUFFER_SIZE CS46XX_MAX_PERIOD_SIZE * CS46XX_FRAGS */
 47 
 48 #define SCB_NO_PARENT             0
 49 #define SCB_ON_PARENT_NEXT_SCB    1
 50 #define SCB_ON_PARENT_SUBLIST_SCB 2
 51 
 52 /* 3*1024 parameter, 3.5*1024 sample, 2*3.5*1024 code */
 53 #define BA1_DWORD_SIZE          (13 * 1024 + 512)
 54 #define BA1_MEMORY_COUNT        3
 55 
 56 /*
 57  *  common I/O routines
 58  */
 59 
 60 static inline void snd_cs46xx_poke(struct snd_cs46xx *chip, unsigned long reg, unsigned int val)
 61 {
 62         unsigned int bank = reg >> 16;
 63         unsigned int offset = reg & 0xffff;
 64 
 65         /*
 66         if (bank == 0)
 67                 printk(KERN_DEBUG "snd_cs46xx_poke: %04X - %08X\n",
 68                        reg >> 2,val);
 69         */
 70         writel(val, chip->region.idx[bank+1].remap_addr + offset);
 71 }
 72 
 73 static inline unsigned int snd_cs46xx_peek(struct snd_cs46xx *chip, unsigned long reg)
 74 {
 75         unsigned int bank = reg >> 16;
 76         unsigned int offset = reg & 0xffff;
 77         return readl(chip->region.idx[bank+1].remap_addr + offset);
 78 }
 79 
 80 static inline void snd_cs46xx_pokeBA0(struct snd_cs46xx *chip, unsigned long offset, unsigned int val)
 81 {
 82         writel(val, chip->region.name.ba0.remap_addr + offset);
 83 }
 84 
 85 static inline unsigned int snd_cs46xx_peekBA0(struct snd_cs46xx *chip, unsigned long offset)
 86 {
 87         return readl(chip->region.name.ba0.remap_addr + offset);
 88 }
 89 
 90 struct dsp_spos_instance *cs46xx_dsp_spos_create (struct snd_cs46xx * chip);
 91 void cs46xx_dsp_spos_destroy (struct snd_cs46xx * chip);
 92 int cs46xx_dsp_load_module (struct snd_cs46xx * chip, struct dsp_module_desc * module);
 93 #ifdef CONFIG_PM
 94 int cs46xx_dsp_resume(struct snd_cs46xx * chip);
 95 #endif
 96 struct dsp_symbol_entry *cs46xx_dsp_lookup_symbol (struct snd_cs46xx * chip, char * symbol_name,
 97                                                    int symbol_type);
 98 #ifdef CONFIG_PROC_FS
 99 int cs46xx_dsp_proc_init (struct snd_card *card, struct snd_cs46xx *chip);
100 int cs46xx_dsp_proc_done (struct snd_cs46xx *chip);
101 #else
102 #define cs46xx_dsp_proc_init(card, chip)
103 #define cs46xx_dsp_proc_done(chip)
104 #endif
105 int cs46xx_dsp_scb_and_task_init (struct snd_cs46xx *chip);
106 int snd_cs46xx_download (struct snd_cs46xx *chip, u32 *src, unsigned long offset,
107                          unsigned long len);
108 int snd_cs46xx_clear_BA1(struct snd_cs46xx *chip, unsigned long offset, unsigned long len);
109 int cs46xx_dsp_enable_spdif_out (struct snd_cs46xx *chip);
110 int cs46xx_dsp_enable_spdif_hw (struct snd_cs46xx *chip);
111 int cs46xx_dsp_disable_spdif_out (struct snd_cs46xx *chip);
112 int cs46xx_dsp_enable_spdif_in (struct snd_cs46xx *chip);
113 int cs46xx_dsp_disable_spdif_in (struct snd_cs46xx *chip);
114 int cs46xx_dsp_enable_pcm_capture (struct snd_cs46xx *chip);
115 int cs46xx_dsp_disable_pcm_capture (struct snd_cs46xx *chip);
116 int cs46xx_dsp_enable_adc_capture (struct snd_cs46xx *chip);
117 int cs46xx_dsp_disable_adc_capture (struct snd_cs46xx *chip);
118 int cs46xx_poke_via_dsp (struct snd_cs46xx *chip, u32 address, u32 data);
119 struct dsp_scb_descriptor * cs46xx_dsp_create_scb (struct snd_cs46xx *chip, char * name,
120                                                    u32 * scb_data, u32 dest);
121 #ifdef CONFIG_PROC_FS
122 void cs46xx_dsp_proc_free_scb_desc (struct dsp_scb_descriptor * scb);
123 void cs46xx_dsp_proc_register_scb_desc (struct snd_cs46xx *chip,
124                                         struct dsp_scb_descriptor * scb);
125 #else
126 #define cs46xx_dsp_proc_free_scb_desc(scb)
127 #define cs46xx_dsp_proc_register_scb_desc(chip, scb)
128 #endif
129 struct dsp_scb_descriptor * cs46xx_dsp_create_timing_master_scb (struct snd_cs46xx *chip);
130 struct dsp_scb_descriptor *
131 cs46xx_dsp_create_codec_out_scb(struct snd_cs46xx * chip,
132                                 char * codec_name, u16 channel_disp, u16 fifo_addr,
133                                 u16 child_scb_addr, u32 dest,
134                                 struct dsp_scb_descriptor * parent_scb,
135                                 int scb_child_type);
136 struct dsp_scb_descriptor *
137 cs46xx_dsp_create_codec_in_scb(struct snd_cs46xx * chip, char * codec_name,
138                                u16 channel_disp, u16 fifo_addr,
139                                u16 sample_buffer_addr, u32 dest,
140                                struct dsp_scb_descriptor * parent_scb,
141                                int scb_child_type);
142 void cs46xx_dsp_remove_scb (struct snd_cs46xx *chip,
143                             struct dsp_scb_descriptor * scb);
144 struct dsp_scb_descriptor *
145 cs46xx_dsp_create_codec_in_scb(struct snd_cs46xx * chip, char * codec_name,
146                                u16 channel_disp, u16 fifo_addr,
147                                u16 sample_buffer_addr, u32 dest,
148                                struct dsp_scb_descriptor * parent_scb,
149                                int scb_child_type);
150 struct dsp_scb_descriptor *
151 cs46xx_dsp_create_src_task_scb(struct snd_cs46xx * chip, char * scb_name,
152                                int sample_rate, u16 src_buffer_addr,
153                                u16 src_delay_buffer_addr, u32 dest,
154                                struct dsp_scb_descriptor * parent_scb,
155                                int scb_child_type, int pass_through);
156 struct dsp_scb_descriptor *
157 cs46xx_dsp_create_mix_only_scb(struct snd_cs46xx * chip, char * scb_name,
158                                u16 mix_buffer_addr, u32 dest,
159                                struct dsp_scb_descriptor * parent_scb,
160                                int scb_child_type);
161 
162 struct dsp_scb_descriptor *
163 cs46xx_dsp_create_vari_decimate_scb(struct snd_cs46xx * chip, char * scb_name,
164                                     u16 vari_buffer_addr0, u16 vari_buffer_addr1, u32 dest,
165                                     struct dsp_scb_descriptor * parent_scb,
166                                     int scb_child_type);
167 struct dsp_scb_descriptor *
168 cs46xx_dsp_create_asynch_fg_rx_scb(struct snd_cs46xx * chip, char * scb_name,
169                                    u32 dest, u16 hfg_scb_address, u16 asynch_buffer_address,
170                                    struct dsp_scb_descriptor * parent_scb,
171                                    int scb_child_type);
172 struct dsp_scb_descriptor *
173 cs46xx_dsp_create_spio_write_scb(struct snd_cs46xx * chip, char * scb_name, u32 dest,
174                                  struct dsp_scb_descriptor * parent_scb,
175                                  int scb_child_type);
176 struct dsp_scb_descriptor *
177 cs46xx_dsp_create_mix_to_ostream_scb(struct snd_cs46xx * chip, char * scb_name,
178                                      u16 mix_buffer_addr, u16 writeback_spb, u32 dest,
179                                      struct dsp_scb_descriptor * parent_scb,
180                                      int scb_child_type);
181 struct dsp_scb_descriptor *
182 cs46xx_dsp_create_magic_snoop_scb(struct snd_cs46xx * chip, char * scb_name,
183                                   u32 dest, u16 snoop_buffer_address,
184                                   struct dsp_scb_descriptor * snoop_scb,
185                                   struct dsp_scb_descriptor * parent_scb,
186                                   int scb_child_type);
187 struct dsp_pcm_channel_descriptor *
188 cs46xx_dsp_create_pcm_channel (struct snd_cs46xx * chip, u32 sample_rate,
189                                void * private_data, u32 hw_dma_addr,
190                                int pcm_channel_id);
191 void cs46xx_dsp_destroy_pcm_channel (struct snd_cs46xx * chip,
192                                      struct dsp_pcm_channel_descriptor * pcm_channel);
193 int cs46xx_dsp_pcm_unlink (struct snd_cs46xx * chip,
194                            struct dsp_pcm_channel_descriptor * pcm_channel);
195 int cs46xx_dsp_pcm_link (struct snd_cs46xx * chip,
196                          struct dsp_pcm_channel_descriptor * pcm_channel);
197 struct dsp_scb_descriptor *
198 cs46xx_add_record_source (struct snd_cs46xx *chip, struct dsp_scb_descriptor * source,
199                           u16 addr, char * scb_name);
200 int cs46xx_src_unlink(struct snd_cs46xx *chip, struct dsp_scb_descriptor * src);
201 int cs46xx_src_link(struct snd_cs46xx *chip, struct dsp_scb_descriptor * src);
202 int cs46xx_iec958_pre_open (struct snd_cs46xx *chip);
203 int cs46xx_iec958_post_close (struct snd_cs46xx *chip);
204 int cs46xx_dsp_pcm_channel_set_period (struct snd_cs46xx * chip,
205                                        struct dsp_pcm_channel_descriptor * pcm_channel,
206                                        int period_size);
207 int cs46xx_dsp_pcm_ostream_set_period (struct snd_cs46xx * chip, int period_size);
208 int cs46xx_dsp_set_dac_volume (struct snd_cs46xx * chip, u16 left, u16 right);
209 int cs46xx_dsp_set_iec958_volume (struct snd_cs46xx * chip, u16 left, u16 right);
210 #endif /* __CS46XX_LIB_H__ */
211 
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