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https://github.com/grymoire/i2c_puppet-Linux.git
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81 lines
2.9 KiB
C
81 lines
2.9 KiB
C
#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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enum reg_id
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{
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REG_ID_VER = 0x01, // fw version
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REG_ID_CFG = 0x02, // config
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REG_ID_INT = 0x03, // interrupt status
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REG_ID_KEY = 0x04, // key status
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REG_ID_BKL = 0x05, // backlight
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REG_ID_DEB = 0x06, // key debounce cfg (not implemented)
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REG_ID_FRQ = 0x07, // key poll freq cfg
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REG_ID_RST = 0x08, // trigger a reset
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REG_ID_FIF = 0x09, // key fifo
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REG_ID_BK2 = 0x0A, // backlight 2
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REG_ID_DIR = 0x0B, // gpio direction
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REG_ID_PUE = 0x0C, // gpio input pull enable
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REG_ID_PUD = 0x0D, // gpio input pull direction
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REG_ID_GIO = 0x0E, // gpio value
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REG_ID_GIC = 0x0F, // gpio interrupt config
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REG_ID_GIN = 0x10, // gpio interrupt status
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REG_ID_HLD = 0x11, // key hold time cfg (in 10ms units)
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REG_ID_ADR = 0x12, // i2c puppet address
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REG_ID_IND = 0x13, // interrupt pin assert duration
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REG_ID_CF2 = 0x14, // config 2
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REG_ID_TOX = 0x15, // touch delta x since last read, at most (-128 to 127)
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REG_ID_TOY = 0x16, // touch delta y since last read, at most (-128 to 127)
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REG_ID_LAST,
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};
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#define CFG_OVERFLOW_ON (1 << 0) // Should new FIFO entries overwrite oldest ones if FIFO is full
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#define CFG_OVERFLOW_INT (1 << 1) // Should FIFO overflow generate an interrupt
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#define CFG_CAPSLOCK_INT (1 << 2) // Should toggling caps lock generate interrupts
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#define CFG_NUMLOCK_INT (1 << 3) // Should toggling num lock generate interrupts
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#define CFG_KEY_INT (1 << 4) // Should key events generate interrupts
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#define CFG_PANIC_INT (1 << 5) // Not implemented
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#define CFG_REPORT_MODS (1 << 6) // Should Alt, Sym and Shifts be reported as well
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#define CFG_USE_MODS (1 << 7) // Should Alt, Sym and Shifts modify the keys reported
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#define CF2_TOUCH_INT (1 << 0) // Should touch events generate interrupts
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#define CF2_USB_KEYB_ON (1 << 1) // Should key events be sent over USB HID
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#define CF2_USB_MOUSE_ON (1 << 2) // Should touch events be sent over USB HID
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// TODO? CF2_STICKY_MODS // Pressing and releasing a mod affects next key pressed
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#define INT_OVERFLOW (1 << 0)
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#define INT_CAPSLOCK (1 << 1)
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#define INT_NUMLOCK (1 << 2)
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#define INT_KEY (1 << 3)
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#define INT_PANIC (1 << 4)
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#define INT_GPIO (1 << 5)
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#define INT_TOUCH (1 << 6)
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// Future me: If we need more INT_*, add a INT2 and use (1 << 7) here as indicator that the info is in INT2
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#define KEY_CAPSLOCK (1 << 5) // Caps lock status
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#define KEY_NUMLOCK (1 << 6) // Num lock status
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#define KEY_COUNT_MASK 0x1F
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#define DIR_OUTPUT 0
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#define DIR_INPUT 1
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#define PUD_DOWN 0
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#define PUD_UP 1
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#define VER_VAL ((VERSION_MAJOR << 4) | (VERSION_MINOR << 0))
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#define PACKET_WRITE_MASK (1 << 7)
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void reg_process_packet(uint8_t in_reg, uint8_t in_data, uint8_t *out_buffer, uint8_t *out_len);
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uint8_t reg_get_value(enum reg_id reg);
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void reg_set_value(enum reg_id reg, uint8_t value);
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bool reg_is_bit_set(enum reg_id reg, uint8_t bit);
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void reg_set_bit(enum reg_id reg, uint8_t bit);
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void reg_clear_bit(enum reg_id reg, uint8_t bit);
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void reg_init(void);
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