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  * Driver for Digigram pcxhr compatible soundcards
  3  *
  4  * low level interface with interrupt ans message handling
  5  *
  6  * Copyright (c) 2004 by Digigram <alsa@digigram.com>
  7  *
  8  *   This program is free software; you can redistribute it and/or modify
  9  *   it under the terms of the GNU General Public License as published by
 10  *   the Free Software Foundation; either version 2 of the License, or
 11  *   (at your option) any later version.
 12  *
 13  *   This program is distributed in the hope that it will be useful,
 14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 16  *   GNU General Public License for more details.
 17  *
 18  *   You should have received a copy of the GNU General Public License
 19  *   along with this program; if not, write to the Free Software
 20  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 21  */
 22 
 23 #ifndef __SOUND_PCXHR_CORE_H
 24 #define __SOUND_PCXHR_CORE_H
 25 
 26 struct firmware;
 27 struct pcxhr_mgr;
 28 
 29 /* init and firmware download commands */
 30 void pcxhr_reset_xilinx_com(struct pcxhr_mgr *mgr);
 31 void pcxhr_reset_dsp(struct pcxhr_mgr *mgr);
 32 void pcxhr_enable_dsp(struct pcxhr_mgr *mgr);
 33 int pcxhr_load_xilinx_binary(struct pcxhr_mgr *mgr, const struct firmware *xilinx, int second);
 34 int pcxhr_load_eeprom_binary(struct pcxhr_mgr *mgr, const struct firmware *eeprom);
 35 int pcxhr_load_boot_binary(struct pcxhr_mgr *mgr, const struct firmware *boot);
 36 int pcxhr_load_dsp_binary(struct pcxhr_mgr *mgr, const struct firmware *dsp);
 37 
 38 /* DSP time available on MailBox4 register : 24 bit time samples() */
 39 #define PCXHR_DSP_TIME_MASK             0x00ffffff
 40 #define PCXHR_DSP_TIME_INVALID          0x10000000
 41 
 42 
 43 #define PCXHR_SIZE_MAX_CMD              8
 44 #define PCXHR_SIZE_MAX_STATUS           16
 45 #define PCXHR_SIZE_MAX_LONG_STATUS      256
 46 
 47 struct pcxhr_rmh {
 48         u16     cmd_len;                /* length of the command to send (WORDs) */
 49         u16     stat_len;               /* length of the status received (WORDs) */
 50         u16     dsp_stat;               /* status type, RMP_SSIZE_XXX */
 51         u16     cmd_idx;                /* index of the command */
 52         u32     cmd[PCXHR_SIZE_MAX_CMD];
 53         u32     stat[PCXHR_SIZE_MAX_STATUS];
 54 };
 55 
 56 enum {
 57         CMD_VERSION,                    /* cmd_len = 2  stat_len = 1 */
 58         CMD_SUPPORTED,                  /* cmd_len = 1  stat_len = 4 */
 59         CMD_TEST_IT,                    /* cmd_len = 1  stat_len = 1 */
 60         CMD_SEND_IRQA,                  /* cmd_len = 1  stat_len = 0 */
 61         CMD_ACCESS_IO_WRITE,            /* cmd_len >= 1 stat_len >= 1 */
 62         CMD_ACCESS_IO_READ,             /* cmd_len >= 1 stat_len >= 1 */
 63         CMD_ASYNC,                      /* cmd_len = 1  stat_len = 1 */
 64         CMD_MODIFY_CLOCK,               /* cmd_len = 3  stat_len = 0 */
 65         CMD_RESYNC_AUDIO_INPUTS,        /* cmd_len = 1  stat_len = 0 */
 66         CMD_GET_DSP_RESOURCES,          /* cmd_len = 1  stat_len = 4 */
 67         CMD_SET_TIMER_INTERRUPT,        /* cmd_len = 1  stat_len = 0 */
 68         CMD_RES_PIPE,                   /* cmd_len = 2  stat_len = 0 */
 69         CMD_FREE_PIPE,                  /* cmd_len = 1  stat_len = 0 */
 70         CMD_CONF_PIPE,                  /* cmd_len = 2  stat_len = 0 */
 71         CMD_STOP_PIPE,                  /* cmd_len = 1  stat_len = 0 */
 72         CMD_PIPE_SAMPLE_COUNT,          /* cmd_len = 2  stat_len = 2 */
 73         CMD_CAN_START_PIPE,             /* cmd_len >= 1 stat_len = 1 */
 74         CMD_START_STREAM,               /* cmd_len = 2  stat_len = 0 */
 75         CMD_STREAM_OUT_LEVEL_ADJUST,    /* cmd_len >= 1 stat_len = 0 */
 76         CMD_STOP_STREAM,                /* cmd_len = 2  stat_len = 0 */
 77         CMD_UPDATE_R_BUFFERS,           /* cmd_len = 4  stat_len = 0 */
 78         CMD_FORMAT_STREAM_OUT,          /* cmd_len >= 2 stat_len = 0 */
 79         CMD_FORMAT_STREAM_IN,           /* cmd_len >= 4 stat_len = 0 */
 80         CMD_STREAM_SAMPLE_COUNT,        /* cmd_len = 2  stat_len = (2 * nb_stream) */
 81         CMD_AUDIO_LEVEL_ADJUST,         /* cmd_len = 3  stat_len = 0 */
 82         CMD_LAST_INDEX
 83 };
 84 
 85 #define MASK_DSP_WORD           0x00ffffff
 86 #define MASK_ALL_STREAM         0x00ffffff
 87 #define MASK_DSP_WORD_LEVEL     0x000001ff
 88 #define MASK_FIRST_FIELD        0x0000001f
 89 #define FIELD_SIZE              5
 90 
 91 /*
 92  init the rmh struct; by default cmd_len is set to 1
 93  */
 94 void pcxhr_init_rmh(struct pcxhr_rmh *rmh, int cmd);
 95 
 96 void pcxhr_set_pipe_cmd_params(struct pcxhr_rmh* rmh, int capture, unsigned int param1,
 97                                unsigned int param2, unsigned int param3);
 98 
 99 /*
100  send the rmh
101  */
102 int pcxhr_send_msg(struct pcxhr_mgr *mgr, struct pcxhr_rmh *rmh);
103 
104 
105 /* values used for CMD_ACCESS_IO_WRITE and CMD_ACCESS_IO_READ */
106 #define IO_NUM_REG_CONT                 0
107 #define IO_NUM_REG_GENCLK               1
108 #define IO_NUM_REG_MUTE_OUT             2
109 #define IO_NUM_SPEED_RATIO              4
110 #define IO_NUM_REG_STATUS               5
111 #define IO_NUM_REG_CUER                 10
112 #define IO_NUM_UER_CHIP_REG             11
113 #define IO_NUM_REG_OUT_ANA_LEVEL        20
114 #define IO_NUM_REG_IN_ANA_LEVEL         21
115 
116 
117 #define REG_CONT_UNMUTE_INPUTS          0x020000
118 
119 /* parameters used with register IO_NUM_REG_STATUS */
120 #define REG_STATUS_OPTIONS              0
121 #define REG_STATUS_AES_SYNC             8
122 #define REG_STATUS_AES_1                9
123 #define REG_STATUS_AES_2                10
124 #define REG_STATUS_AES_3                11
125 #define REG_STATUS_AES_4                12
126 #define REG_STATUS_WORD_CLOCK           13
127 #define REG_STATUS_INTER_SYNC           14
128 #define REG_STATUS_CURRENT              0x80
129 /* results */
130 #define REG_STATUS_OPT_NO_VIDEO_SIGNAL  0x01
131 #define REG_STATUS_OPT_DAUGHTER_MASK    0x1c
132 #define REG_STATUS_OPT_ANALOG_BOARD     0x00
133 #define REG_STATUS_OPT_NO_DAUGHTER      0x1c
134 #define REG_STATUS_OPT_COMPANION_MASK   0xe0
135 #define REG_STATUS_OPT_NO_COMPANION     0xe0
136 #define REG_STATUS_SYNC_32000           0x00
137 #define REG_STATUS_SYNC_44100           0x01
138 #define REG_STATUS_SYNC_48000           0x02
139 #define REG_STATUS_SYNC_64000           0x03
140 #define REG_STATUS_SYNC_88200           0x04
141 #define REG_STATUS_SYNC_96000           0x05
142 #define REG_STATUS_SYNC_128000          0x06
143 #define REG_STATUS_SYNC_176400          0x07
144 #define REG_STATUS_SYNC_192000          0x08
145 
146 int pcxhr_set_pipe_state(struct pcxhr_mgr *mgr, int playback_mask, int capture_mask, int start);
147 
148 int pcxhr_write_io_num_reg_cont(struct pcxhr_mgr *mgr, unsigned int mask,
149                                 unsigned int value, int *changed);
150 
151 /* codec parameters */
152 #define CS8416_RUN              0x200401
153 #define CS8416_FORMAT_DETECT    0x200b00
154 #define CS8416_CSB0             0x201900
155 #define CS8416_CSB1             0x201a00
156 #define CS8416_CSB2             0x201b00
157 #define CS8416_CSB3             0x201c00
158 #define CS8416_CSB4             0x201d00
159 #define CS8416_VERSION          0x207f00
160 
161 #define CS8420_DATA_FLOW_CTL    0x200301
162 #define CS8420_CLOCK_SRC_CTL    0x200401
163 #define CS8420_RECEIVER_ERRORS  0x201000
164 #define CS8420_SRC_RATIO        0x201e00
165 #define CS8420_CSB0             0x202000
166 #define CS8420_CSB1             0x202100
167 #define CS8420_CSB2             0x202200
168 #define CS8420_CSB3             0x202300
169 #define CS8420_CSB4             0x202400
170 #define CS8420_VERSION          0x207f00
171 
172 #define CS4271_MODE_CTL_1       0x200101
173 #define CS4271_DAC_CTL          0x200201
174 #define CS4271_VOLMIX           0x200301
175 #define CS4271_VOLMUTE_LEFT     0x200401
176 #define CS4271_VOLMUTE_RIGHT    0x200501
177 #define CS4271_ADC_CTL          0x200601
178 #define CS4271_MODE_CTL_2       0x200701
179 
180 #define CHIP_SIG_AND_MAP_SPI    0xff7f00
181 
182 /* codec selection */
183 #define CS4271_01_CS            0x160018
184 #define CS4271_23_CS            0x160019
185 #define CS4271_45_CS            0x16001a
186 #define CS4271_67_CS            0x16001b
187 #define CS4271_89_CS            0x16001c
188 #define CS4271_AB_CS            0x16001d
189 #define CS8420_01_CS            0x080090
190 #define CS8420_23_CS            0x080092
191 #define CS8420_45_CS            0x080094
192 #define CS8420_67_CS            0x080096
193 #define CS8416_01_CS            0x080098
194 
195 
196 /* interrupt handling */
197 irqreturn_t pcxhr_interrupt(int irq, void *dev_id);
198 void pcxhr_msg_tasklet(unsigned long arg);
199 
200 #endif /* __SOUND_PCXHR_CORE_H */
201 
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