// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for Digigram VX222 V2/Mic soundcards * * VX222-specific low-level routines * * Copyright (c) 2002 by Takashi Iwai <[email protected]> */ #include <linux/delay.h> #include <linux/device.h> #include <linux/firmware.h> #include <linux/mutex.h> #include <linux/io.h> #include <sound/core.h> #include <sound/control.h> #include <sound/tlv.h> #include "vx222.h" static const int vx2_reg_offset[VX_REG_MAX] = …; static const int vx2_reg_index[VX_REG_MAX] = …; static inline unsigned long vx2_reg_addr(struct vx_core *_chip, int reg) { … } /** * vx2_inb - read a byte from the register * @chip: VX core instance * @offset: register enum */ static unsigned char vx2_inb(struct vx_core *chip, int offset) { … } /** * vx2_outb - write a byte on the register * @chip: VX core instance * @offset: the register offset * @val: the value to write */ static void vx2_outb(struct vx_core *chip, int offset, unsigned char val) { … } /** * vx2_inl - read a 32bit word from the register * @chip: VX core instance * @offset: register enum */ static unsigned int vx2_inl(struct vx_core *chip, int offset) { … } /** * vx2_outl - write a 32bit word on the register * @chip: VX core instance * @offset: the register enum * @val: the value to write */ static void vx2_outl(struct vx_core *chip, int offset, unsigned int val) { … } /* * redefine macros to call directly */ #undef vx_inb #define vx_inb(chip,reg) … #undef vx_outb #define vx_outb(chip,reg,val) … #undef vx_inl #define vx_inl(chip,reg) … #undef vx_outl #define vx_outl(chip,reg,val) … /* * vx_reset_dsp - reset the DSP */ #define XX_DSP_RESET_WAIT_TIME … static void vx2_reset_dsp(struct vx_core *_chip) { … } static int vx2_test_xilinx(struct vx_core *_chip) { … } /** * vx2_setup_pseudo_dma - set up the pseudo dma read/write mode. * @chip: VX core instance * @do_write: 0 = read, 1 = set up for DMA write */ static void vx2_setup_pseudo_dma(struct vx_core *chip, int do_write) { … } /* * vx_release_pseudo_dma - disable the pseudo-DMA mode */ static inline void vx2_release_pseudo_dma(struct vx_core *chip) { … } /* pseudo-dma write */ static void vx2_dma_write(struct vx_core *chip, struct snd_pcm_runtime *runtime, struct vx_pipe *pipe, int count) { … } /* pseudo dma read */ static void vx2_dma_read(struct vx_core *chip, struct snd_pcm_runtime *runtime, struct vx_pipe *pipe, int count) { … } #define VX_XILINX_RESET_MASK … #define VX_USERBIT0_MASK … #define VX_USERBIT1_MASK … #define VX_CNTRL_REGISTER_VALUE … /* * transfer counts bits to PLX */ static int put_xilinx_data(struct vx_core *chip, unsigned int port, unsigned int counts, unsigned char data) { … } /* * load the xilinx image */ static int vx2_load_xilinx_binary(struct vx_core *chip, const struct firmware *xilinx) { … } /* * load the boot/dsp images */ static int vx2_load_dsp(struct vx_core *vx, int index, const struct firmware *dsp) { … } /* * vx_test_and_ack - test and acknowledge interrupt * * called from irq hander, too * * spinlock held! */ static int vx2_test_and_ack(struct vx_core *chip) { … } /* * vx_validate_irq - enable/disable IRQ */ static void vx2_validate_irq(struct vx_core *_chip, int enable) { … } /* * write an AKM codec data (24bit) */ static void vx2_write_codec_reg(struct vx_core *chip, unsigned int data) { … } #define AKM_CODEC_POWER_CONTROL_CMD … #define AKM_CODEC_RESET_ON_CMD … #define AKM_CODEC_RESET_OFF_CMD … #define AKM_CODEC_CLOCK_FORMAT_CMD … #define AKM_CODEC_MUTE_CMD … #define AKM_CODEC_UNMUTE_CMD … #define AKM_CODEC_LEFT_LEVEL_CMD … #define AKM_CODEC_RIGHT_LEVEL_CMD … static const u8 vx2_akm_gains_lut[VX2_AKM_LEVEL_MAX+1] = …; // [147] = -73.500 dB -> AKM(0x00) = mute error(+infini) /* * pseudo-codec write entry */ static void vx2_write_akm(struct vx_core *chip, int reg, unsigned int data) { … } /* * write codec bit for old VX222 board */ static void vx2_old_write_codec_bit(struct vx_core *chip, int codec, unsigned int data) { … } /* * reset codec bit */ static void vx2_reset_codec(struct vx_core *_chip) { … } /* * change the audio source */ static void vx2_change_audio_source(struct vx_core *_chip, int src) { … } /* * set the clock source */ static void vx2_set_clock_source(struct vx_core *_chip, int source) { … } /* * reset the board */ static void vx2_reset_board(struct vx_core *_chip, int cold_reset) { … } /* * input level controls for VX222 Mic */ /* Micro level is specified to be adjustable from -96dB to 63 dB (board coded 0x00 ... 318), * 318 = 210 + 36 + 36 + 36 (210 = +9dB variable) (3 * 36 = 3 steps of 18dB pre ampli) * as we will mute if less than -110dB, so let's simply use line input coded levels and add constant offset ! */ #define V2_MICRO_LEVEL_RANGE … static void vx2_set_input_level(struct snd_vx222 *chip) { … } #define MIC_LEVEL_MAX … static const DECLARE_TLV_DB_SCALE(db_scale_mic, -6450, 50, 0); /* * controls API for input levels */ /* input levels */ static int vx_input_level_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int vx_input_level_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int vx_input_level_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } /* mic level */ static int vx_mic_level_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } static int vx_mic_level_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int vx_mic_level_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static const struct snd_kcontrol_new vx_control_input_level = …; static const struct snd_kcontrol_new vx_control_mic_level = …; /* * FIXME: compressor/limiter implementation is missing yet... */ static int vx2_add_mic_controls(struct vx_core *_chip) { … } /* * callbacks */ const struct snd_vx_ops vx222_ops = …; /* for old VX222 board */ const struct snd_vx_ops vx222_old_ops = …;
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