#ifndef __HAL2_H #define __HAL2_H /* * Driver for HAL2 sound processors * Copyright (c) 1999 Ulf Carlsson * Copyright (c) 2001 Ladislav Michl * * 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 #include #include #include #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 */