hal2.h
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上传日期:2013-04-10
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- #ifndef __HAL2_H
- #define __HAL2_H
- /*
- * Driver for HAL2 sound processors
- * Copyright (c) 1999 Ulf Carlsson <ulfc@bun.falkenberg.se>
- * Copyright (c) 2001 Ladislav Michl <ladis@psi.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
- #include <asm/addrspace.h>
- #include <asm/sgi/sgihpc.h>
- #include <linux/spinlock.h>
- #include <linux/types.h>
- #define H2_HAL2_BASE 0x58000
- #define H2_CTL_PIO (H2_HAL2_BASE + 0 * 0x400)
- #define H2_AES_PIO (H2_HAL2_BASE + 1 * 0x400)
- #define H2_VOL_PIO (H2_HAL2_BASE + 2 * 0x400)
- #define H2_SYN_PIO (H2_HAL2_BASE + 3 * 0x400)
- /* Indirect status register */
- #define H2_ISR_TSTATUS 0x01 /* RO: transaction status 1=busy */
- #define H2_ISR_USTATUS 0x02 /* RO: utime status bit 1=armed */
- #define H2_ISR_QUAD_MODE 0x04 /* codec mode 0=indigo 1=quad */
- #define H2_ISR_GLOBAL_RESET_N 0x08 /* chip global reset 0=reset */
- #define H2_ISR_CODEC_RESET_N 0x10 /* codec/synth reset 0=reset */
- /* Revision register */
- #define H2_REV_AUDIO_PRESENT 0x8000 /* RO: audio present 0=present */
- #define H2_REV_BOARD_M 0x7000 /* RO: bits 14:12, board revision */
- #define H2_REV_MAJOR_CHIP_M 0x00F0 /* RO: bits 7:4, major chip revision */
- #define H2_REV_MINOR_CHIP_M 0x000F /* RO: bits 3:0, minor chip revision */
- /* Indirect address register */
- /*
- * Address of indirect internal register to be accessed. A write to this
- * register initiates read or write access to the indirect registers in the
- * HAL2. Note that there af four indirect data registers for write access to
- * registers larger than 16 byte.
- */
- #define H2_IAR_TYPE_M 0xF000 /* bits 15:12, type of functional */
- /* block the register resides in */
- /* 1=DMA Port */
- /* 9=Global DMA Control */
- /* 2=Bresenham */
- /* 3=Unix Timer */
- #define H2_IAR_NUM_M 0x0F00 /* bits 11:8 instance of the */
- /* blockin which the indirect */
- /* register resides */
- /* If IAR_TYPE_M=DMA Port: */
- /* 1=Synth In */
- /* 2=AES In */
- /* 3=AES Out */
- /* 4=DAC Out */
- /* 5=ADC Out */
- /* 6=Synth Control */
- /* If IAR_TYPE_M=Global DMA Control: */
- /* 1=Control */
- /* If IAR_TYPE_M=Bresenham: */
- /* 1=Bresenham Clock Gen 1 */
- /* 2=Bresenham Clock Gen 2 */
- /* 3=Bresenham Clock Gen 3 */
- /* If IAR_TYPE_M=Unix Timer: */
- /* 1=Unix Timer */
- #define H2_IAR_ACCESS_SELECT 0x0080 /* 1=read 0=write */
- #define H2_IAR_PARAM 0x000C /* Parameter Select */
- #define H2_IAR_RB_INDEX_M 0x0003 /* Read Back Index */
- /* 00:word0 */
- /* 01:word1 */
- /* 10:word2 */
- /* 11:word3 */
- /*
- * HAL2 internal addressing
- *
- * The HAL2 has "indirect registers" (idr) which are accessed by writing to the
- * Indirect Data registers. Write the address to the Indirect Address register
- * to transfer the data.
- *
- * We define the H2IR_* to the read address and H2IW_* to the write address and
- * H2I_* to be fields in whatever register is referred to.
- *
- * When we write to indirect registers which are larger than one word (16 bit)
- * we have to fill more than one indirect register before writing. When we read
- * back however we have to read several times, each time with different Read
- * Back Indexes (there are defs for doing this easily).
- */
- /*
- * Relay Control
- */
- #define H2I_RELAY_C 0x9100
- #define H2I_RELAY_C_STATE 0x01 /* state of RELAY pin signal */
- /* DMA port enable */
- #define H2I_DMA_PORT_EN 0x9104
- #define H2I_DMA_PORT_EN_SY_IN 0x01 /* Synth_in DMA port */
- #define H2I_DMA_PORT_EN_AESRX 0x02 /* AES receiver DMA port */
- #define H2I_DMA_PORT_EN_AESTX 0x04 /* AES transmitter DMA port */
- #define H2I_DMA_PORT_EN_CODECTX 0x08 /* CODEC transmit DMA port */
- #define H2I_DMA_PORT_EN_CODECR 0x10 /* CODEC receive DMA port */
- #define H2I_DMA_END 0x9108 /* global dma endian select */
- #define H2I_DMA_END_SY_IN 0x01 /* Synth_in DMA port */
- #define H2I_DMA_END_AESRX 0x02 /* AES receiver DMA port */
- #define H2I_DMA_END_AESTX 0x04 /* AES transmitter DMA port */
- #define H2I_DMA_END_CODECTX 0x08 /* CODEC transmit DMA port */
- #define H2I_DMA_END_CODECR 0x10 /* CODEC receive DMA port */
- /* 0=b_end 1=l_end */
- #define H2I_DMA_DRV 0x910C /* global PBUS DMA enable */
- #define H2I_SYNTH_C 0x1104 /* Synth DMA control */
- #define H2I_AESRX_C 0x1204 /* AES RX dma control */
- #define H2I_C_TS_EN 0x20 /* Timestamp enable */
- #define H2I_C_TS_FRMT 0x40 /* Timestamp format */
- #define H2I_C_NAUDIO 0x80 /* Sign extend */
- /* AESRX CTL, 16 bit */
- #define H2I_AESTX_C 0x1304 /* AES TX DMA control */
- #define H2I_AESTX_C_CLKID_SHIFT 3 /* Bresenham Clock Gen 1-3 */
- #define H2I_AESTX_C_CLKID_M 0x18
- #define H2I_AESTX_C_DATAT_SHIFT 8 /* 1=mono 2=stereo (3=quad) */
- #define H2I_AESTX_C_DATAT_M 0x300
- /* CODEC registers */
- #define H2I_DAC_C1 0x1404 /* DAC DMA control, 16 bit */
- #define H2I_DAC_C2 0x1408 /* DAC DMA control, 32 bit */
- #define H2I_ADC_C1 0x1504 /* ADC DMA control, 16 bit */
- #define H2I_ADC_C2 0x1508 /* ADC DMA control, 32 bit */
- /* Bits in CTL1 register */
- #define H2I_C1_DMA_SHIFT 0 /* DMA channel */
- #define H2I_C1_DMA_M 0x7
- #define H2I_C1_CLKID_SHIFT 3 /* Bresenham Clock Gen 1-3 */
- #define H2I_C1_CLKID_M 0x18
- #define H2I_C1_DATAT_SHIFT 8 /* 1=mono 2=stereo (3=quad) */
- #define H2I_C1_DATAT_M 0x300
- /* Bits in CTL2 register */
- #define H2I_C2_R_GAIN_SHIFT 0 /* right a/d input gain */
- #define H2I_C2_R_GAIN_M 0xf
- #define H2I_C2_L_GAIN_SHIFT 4 /* left a/d input gain */
- #define H2I_C2_L_GAIN_M 0xf0
- #define H2I_C2_R_SEL 0x100 /* right input select */
- #define H2I_C2_L_SEL 0x200 /* left input select */
- #define H2I_C2_MUTE 0x400 /* mute */
- #define H2I_C2_DO1 0x00010000 /* digital output port bit 0 */
- #define H2I_C2_DO2 0x00020000 /* digital output port bit 1 */
- #define H2I_C2_R_ATT_SHIFT 18 /* right d/a output - */
- #define H2I_C2_R_ATT_M 0x007c0000 /* attenuation */
- #define H2I_C2_L_ATT_SHIFT 23 /* left d/a output - */
- #define H2I_C2_L_ATT_M 0x0f800000 /* attenuation */
- #define H2I_SYNTH_MAP_C 0x1104 /* synth dma handshake ctrl */
- /* Clock generator CTL 1, 16 bit */
- #define H2I_BRES1_C1 0x2104
- #define H2I_BRES2_C1 0x2204
- #define H2I_BRES3_C1 0x2304
- #define H2I_BRES_C1_SHIFT 0 /* 0=48.0 1=44.1 2=aes_rx */
- #define H2I_BRES_C1_M 0x03
-
- /* Clock generator CTL 2, 32 bit */
- #define H2I_BRES1_C2 0x2108
- #define H2I_BRES2_C2 0x2208
- #define H2I_BRES3_C2 0x2308
- #define H2I_BRES_C2_INC_SHIFT 0 /* increment value */
- #define H2I_BRES_C2_INC_M 0xffff
- #define H2I_BRES_C2_MOD_SHIFT 16 /* modcontrol value */
- #define H2I_BRES_C2_MOD_M 0xffff0000 /* modctrl=0xffff&(modinc-1) */
- /* Unix timer, 64 bit */
- #define H2I_UTIME 0x3104
- #define H2I_UTIME_0_LD 0xffff /* microseconds, LSB's */
- #define H2I_UTIME_1_LD0 0x0f /* microseconds, MSB's */
- #define H2I_UTIME_1_LD1 0xf0 /* tenths of microseconds */
- #define H2I_UTIME_2_LD 0xffff /* seconds, LSB's */
- #define H2I_UTIME_3_LD 0xffff /* seconds, MSB's */
- typedef volatile u32 hal2_reg_t;
- typedef struct stru_hal2_ctl_regs hal2_ctl_regs_t;
- struct stru_hal2_ctl_regs {
- hal2_reg_t _unused0[4];
- hal2_reg_t isr; /* 0x10 Status Register */
- hal2_reg_t _unused1[3];
- hal2_reg_t rev; /* 0x20 Revision Register */
- hal2_reg_t _unused2[3];
- hal2_reg_t iar; /* 0x30 Indirect Address Register */
- hal2_reg_t _unused3[3];
- hal2_reg_t idr0; /* 0x40 Indirect Data Register 0 */
- hal2_reg_t _unused4[3];
- hal2_reg_t idr1; /* 0x50 Indirect Data Register 1 */
- hal2_reg_t _unused5[3];
- hal2_reg_t idr2; /* 0x60 Indirect Data Register 2 */
- hal2_reg_t _unused6[3];
- hal2_reg_t idr3; /* 0x70 Indirect Data Register 3 */
- };
- typedef struct stru_hal2_aes_regs hal2_aes_regs_t;
- struct stru_hal2_aes_regs {
- hal2_reg_t rx_stat[2]; /* Status registers */
- hal2_reg_t rx_cr[2]; /* Control registers */
- hal2_reg_t rx_ud[4]; /* User data window */
- hal2_reg_t rx_st[24]; /* Channel status data */
-
- hal2_reg_t tx_stat[1]; /* Status register */
- hal2_reg_t tx_cr[3]; /* Control registers */
- hal2_reg_t tx_ud[4]; /* User data window */
- hal2_reg_t tx_st[24]; /* Channel status data */
- };
- typedef struct stru_hal2_vol_regs hal2_vol_regs_t;
- struct stru_hal2_vol_regs {
- hal2_reg_t right; /* 0x00 Right volume */
- hal2_reg_t left; /* 0x04 Left volume */
- };
- typedef struct stru_hal2_syn_regs hal2_syn_regs_t;
- struct stru_hal2_syn_regs {
- hal2_reg_t _unused0[2];
- hal2_reg_t page; /* DOC Page register */
- hal2_reg_t regsel; /* DOC Register selection */
- hal2_reg_t dlow; /* DOC Data low */
- hal2_reg_t dhigh; /* DOC Data high */
- hal2_reg_t irq; /* IRQ Status */
- hal2_reg_t dram; /* DRAM Access */
- };
- /* HAL2 specific structures */
- typedef struct stru_hal2_pbus hal2_pbus_t;
- struct stru_hal2_pbus {
- struct hpc3_pbus_dmacregs *pbus;
- int pbusnr;
- unsigned int ctrl; /* Current state of pbus->pbdma_ctrl */
- };
- typedef struct stru_hal2_binfo hal2_binfo_t;
- typedef struct stru_hal2_buffer hal2_buf_t;
- struct stru_hal2_binfo {
- volatile struct hpc_dma_desc desc;
- hal2_buf_t *next; /* pointer to next buffer */
- int cnt; /* bytes in buffer */
- };
- #define H2_BUFFER_SIZE (PAGE_SIZE -
- ((sizeof(hal2_binfo_t) - 1) / 8 + 1) * 8)
- struct stru_hal2_buffer {
- hal2_binfo_t info;
- char data[H2_BUFFER_SIZE] __attribute__((aligned(8)));
- };
- typedef struct stru_hal2_codec hal2_codec_t;
- struct stru_hal2_codec {
- hal2_buf_t *head;
- hal2_buf_t *tail;
- hal2_pbus_t pbus;
- unsigned int format; /* Audio data format */
- int voices; /* mono/stereo */
- unsigned int sample_rate;
- unsigned int master; /* Master frequency */
- unsigned short mod; /* MOD value */
- unsigned short inc; /* INC value */
- wait_queue_head_t dma_wait;
- spinlock_t lock;
- struct semaphore sem;
- int usecount; /* recording and playback are
- * independent */
- };
- #define H2_MIX_OUTPUT_ATT 0
- #define H2_MIX_INPUT_GAIN 1
- #define H2_MIXERS 2
- typedef struct stru_hal2_mixer hal2_mixer_t;
- struct stru_hal2_mixer {
- int modcnt;
- unsigned int volume[H2_MIXERS];
- };
- typedef struct stru_hal2_card hal2_card_t;
- struct stru_hal2_card {
- int dev_dsp; /* audio device */
- int dev_mixer; /* mixer device */
- int dev_midi; /* midi device */
-
- hal2_ctl_regs_t *ctl_regs; /* HAL2 ctl registers */
- hal2_aes_regs_t *aes_regs; /* HAL2 vol registers */
- hal2_vol_regs_t *vol_regs; /* HAL2 aes registers */
- hal2_syn_regs_t *syn_regs; /* HAL2 syn registers */
- hal2_codec_t dac;
- hal2_codec_t adc;
- hal2_mixer_t mixer;
- };
- #endif /* __HAL2_H */