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5 * Driver for HAL2 sound processors
6 * Copyright (c) 1999 Ulf Carlsson <ulfc@bun.falkenberg.se>
7 * Copyright (c) 2001, 2002, 2003 Ladislav Michl <ladis@linux-mips.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
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.
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., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #include <linux/types.h>
26 /* Indirect status register */
28 #define H2_ISR_TSTATUS 0x01 /* RO: transaction status 1=busy */
29 #define H2_ISR_USTATUS 0x02 /* RO: utime status bit 1=armed */
30 #define H2_ISR_QUAD_MODE 0x04 /* codec mode 0=indigo 1=quad */
31 #define H2_ISR_GLOBAL_RESET_N 0x08 /* chip global reset 0=reset */
32 #define H2_ISR_CODEC_RESET_N 0x10 /* codec/synth reset 0=reset */
34 /* Revision register */
36 #define H2_REV_AUDIO_PRESENT 0x8000 /* RO: audio present 0=present */
37 #define H2_REV_BOARD_M 0x7000 /* RO: bits 14:12, board revision */
38 #define H2_REV_MAJOR_CHIP_M 0x00F0 /* RO: bits 7:4, major chip revision */
39 #define H2_REV_MINOR_CHIP_M 0x000F /* RO: bits 3:0, minor chip revision */
41 /* Indirect address register */
44 * Address of indirect internal register to be accessed. A write to this
45 * register initiates read or write access to the indirect registers in the
46 * HAL2. Note that there af four indirect data registers for write access to
47 * registers larger than 16 byte.
50 #define H2_IAR_TYPE_M 0xF000 /* bits 15:12, type of functional */
51 /* block the register resides in */
53 /* 9=Global DMA Control */
56 #define H2_IAR_NUM_M 0x0F00 /* bits 11:8 instance of the */
57 /* blockin which the indirect */
58 /* register resides */
59 /* If IAR_TYPE_M=DMA Port: */
66 /* If IAR_TYPE_M=Global DMA Control: */
68 /* If IAR_TYPE_M=Bresenham: */
69 /* 1=Bresenham Clock Gen 1 */
70 /* 2=Bresenham Clock Gen 2 */
71 /* 3=Bresenham Clock Gen 3 */
72 /* If IAR_TYPE_M=Unix Timer: */
74 #define H2_IAR_ACCESS_SELECT 0x0080 /* 1=read 0=write */
75 #define H2_IAR_PARAM 0x000C /* Parameter Select */
76 #define H2_IAR_RB_INDEX_M 0x0003 /* Read Back Index */
82 * HAL2 internal addressing
84 * The HAL2 has "indirect registers" (idr) which are accessed by writing to the
85 * Indirect Data registers. Write the address to the Indirect Address register
86 * to transfer the data.
88 * We define the H2IR_* to the read address and H2IW_* to the write address and
89 * H2I_* to be fields in whatever register is referred to.
91 * When we write to indirect registers which are larger than one word (16 bit)
92 * we have to fill more than one indirect register before writing. When we read
93 * back however we have to read several times, each time with different Read
94 * Back Indexes (there are defs for doing this easily).
100 #define H2I_RELAY_C 0x9100
101 #define H2I_RELAY_C_STATE 0x01 /* state of RELAY pin signal */
103 /* DMA port enable */
105 #define H2I_DMA_PORT_EN 0x9104
106 #define H2I_DMA_PORT_EN_SY_IN 0x01 /* Synth_in DMA port */
107 #define H2I_DMA_PORT_EN_AESRX 0x02 /* AES receiver DMA port */
108 #define H2I_DMA_PORT_EN_AESTX 0x04 /* AES transmitter DMA port */
109 #define H2I_DMA_PORT_EN_CODECTX 0x08 /* CODEC transmit DMA port */
110 #define H2I_DMA_PORT_EN_CODECR 0x10 /* CODEC receive DMA port */
112 #define H2I_DMA_END 0x9108 /* global dma endian select */
113 #define H2I_DMA_END_SY_IN 0x01 /* Synth_in DMA port */
114 #define H2I_DMA_END_AESRX 0x02 /* AES receiver DMA port */
115 #define H2I_DMA_END_AESTX 0x04 /* AES transmitter DMA port */
116 #define H2I_DMA_END_CODECTX 0x08 /* CODEC transmit DMA port */
117 #define H2I_DMA_END_CODECR 0x10 /* CODEC receive DMA port */
118 /* 0=b_end 1=l_end */
120 #define H2I_DMA_DRV 0x910C /* global PBUS DMA enable */
122 #define H2I_SYNTH_C 0x1104 /* Synth DMA control */
124 #define H2I_AESRX_C 0x1204 /* AES RX dma control */
126 #define H2I_C_TS_EN 0x20 /* Timestamp enable */
127 #define H2I_C_TS_FRMT 0x40 /* Timestamp format */
128 #define H2I_C_NAUDIO 0x80 /* Sign extend */
130 /* AESRX CTL, 16 bit */
132 #define H2I_AESTX_C 0x1304 /* AES TX DMA control */
133 #define H2I_AESTX_C_CLKID_SHIFT 3 /* Bresenham Clock Gen 1-3 */
134 #define H2I_AESTX_C_CLKID_M 0x18
135 #define H2I_AESTX_C_DATAT_SHIFT 8 /* 1=mono 2=stereo (3=quad) */
136 #define H2I_AESTX_C_DATAT_M 0x300
138 /* CODEC registers */
140 #define H2I_DAC_C1 0x1404 /* DAC DMA control, 16 bit */
141 #define H2I_DAC_C2 0x1408 /* DAC DMA control, 32 bit */
142 #define H2I_ADC_C1 0x1504 /* ADC DMA control, 16 bit */
143 #define H2I_ADC_C2 0x1508 /* ADC DMA control, 32 bit */
145 /* Bits in CTL1 register */
147 #define H2I_C1_DMA_SHIFT 0 /* DMA channel */
148 #define H2I_C1_DMA_M 0x7
149 #define H2I_C1_CLKID_SHIFT 3 /* Bresenham Clock Gen 1-3 */
150 #define H2I_C1_CLKID_M 0x18
151 #define H2I_C1_DATAT_SHIFT 8 /* 1=mono 2=stereo (3=quad) */
152 #define H2I_C1_DATAT_M 0x300
154 /* Bits in CTL2 register */
156 #define H2I_C2_R_GAIN_SHIFT 0 /* right a/d input gain */
157 #define H2I_C2_R_GAIN_M 0xf
158 #define H2I_C2_L_GAIN_SHIFT 4 /* left a/d input gain */
159 #define H2I_C2_L_GAIN_M 0xf0
160 #define H2I_C2_R_SEL 0x100 /* right input select */
161 #define H2I_C2_L_SEL 0x200 /* left input select */
162 #define H2I_C2_MUTE 0x400 /* mute */
163 #define H2I_C2_DO1 0x00010000 /* digital output port bit 0 */
164 #define H2I_C2_DO2 0x00020000 /* digital output port bit 1 */
165 #define H2I_C2_R_ATT_SHIFT 18 /* right d/a output - */
166 #define H2I_C2_R_ATT_M 0x007c0000 /* attenuation */
167 #define H2I_C2_L_ATT_SHIFT 23 /* left d/a output - */
168 #define H2I_C2_L_ATT_M 0x0f800000 /* attenuation */
170 #define H2I_SYNTH_MAP_C 0x1104 /* synth dma handshake ctrl */
172 /* Clock generator CTL 1, 16 bit */
174 #define H2I_BRES1_C1 0x2104
175 #define H2I_BRES2_C1 0x2204
176 #define H2I_BRES3_C1 0x2304
178 #define H2I_BRES_C1_SHIFT 0 /* 0=48.0 1=44.1 2=aes_rx */
179 #define H2I_BRES_C1_M 0x03
181 /* Clock generator CTL 2, 32 bit */
183 #define H2I_BRES1_C2 0x2108
184 #define H2I_BRES2_C2 0x2208
185 #define H2I_BRES3_C2 0x2308
187 #define H2I_BRES_C2_INC_SHIFT 0 /* increment value */
188 #define H2I_BRES_C2_INC_M 0xffff
189 #define H2I_BRES_C2_MOD_SHIFT 16 /* modcontrol value */
190 #define H2I_BRES_C2_MOD_M 0xffff0000 /* modctrl=0xffff&(modinc-1) */
192 /* Unix timer, 64 bit */
194 #define H2I_UTIME 0x3104
195 #define H2I_UTIME_0_LD 0xffff /* microseconds, LSB's */
196 #define H2I_UTIME_1_LD0 0x0f /* microseconds, MSB's */
197 #define H2I_UTIME_1_LD1 0xf0 /* tenths of microseconds */
198 #define H2I_UTIME_2_LD 0xffff /* seconds, LSB's */
199 #define H2I_UTIME_3_LD 0xffff /* seconds, MSB's */
201 struct hal2_ctl_regs
{
203 u32 isr
; /* 0x10 Status Register */
205 u32 rev
; /* 0x20 Revision Register */
207 u32 iar
; /* 0x30 Indirect Address Register */
209 u32 idr0
; /* 0x40 Indirect Data Register 0 */
211 u32 idr1
; /* 0x50 Indirect Data Register 1 */
213 u32 idr2
; /* 0x60 Indirect Data Register 2 */
215 u32 idr3
; /* 0x70 Indirect Data Register 3 */
218 struct hal2_aes_regs
{
219 u32 rx_stat
[2]; /* Status registers */
220 u32 rx_cr
[2]; /* Control registers */
221 u32 rx_ud
[4]; /* User data window */
222 u32 rx_st
[24]; /* Channel status data */
224 u32 tx_stat
[1]; /* Status register */
225 u32 tx_cr
[3]; /* Control registers */
226 u32 tx_ud
[4]; /* User data window */
227 u32 tx_st
[24]; /* Channel status data */
230 struct hal2_vol_regs
{
231 u32 right
; /* Right volume */
232 u32 left
; /* Left volume */
235 struct hal2_syn_regs
{
237 u32 page
; /* DOC Page register */
238 u32 regsel
; /* DOC Register selection */
239 u32 dlow
; /* DOC Data low */
240 u32 dhigh
; /* DOC Data high */
241 u32 irq
; /* IRQ Status */
242 u32 dram
; /* DRAM Access */
245 #endif /* __HAL2_H */