forked from forks/qmk_firmware
f0b30e0027
This converts the array that the Swap Hands feature uses to use PROGMEM, and to read from that array, as such. Since this array never changes at runtime, there is no reason to keep it in memory. Especially for AVR boards, as memory is a precious resource.
85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
#include QMK_KEYBOARD_H
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bool i2c_initialized = 0;
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i2c_status_t mcp23018_status = 0x20;
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void matrix_init_kb(void) {
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// (tied to Vcc for hardware convenience)
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//DDRB &= ~(1<<4); // set B(4) as input
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//PORTB &= ~(1<<4); // set B(4) internal pull-up disabled
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// unused pins - C7, D4, D5, D7, E6
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// set as input with internal pull-up enabled
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DDRC &= ~(1<<7);
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DDRD &= ~(1<<5 | 1<<4 | 1<<6 | 1<<7);
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DDRE &= ~(1<<6);
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PORTC |= (1<<7);
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PORTD |= (1<<5 | 1<<4 | 1<<6 | 1<<7);
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PORTE |= (1<<6);
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matrix_init_user();
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}
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uint8_t init_mcp23018(void) {
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print("starting init");
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mcp23018_status = 0x20;
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// I2C subsystem
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// uint8_t sreg_prev;
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// sreg_prev=SREG;
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// cli();
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if (i2c_initialized == 0) {
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i2c_init(); // on pins D(1,0)
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i2c_initialized = true;
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_delay_ms(1000);
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}
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// i2c_init(); // on pins D(1,0)
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// _delay_ms(1000);
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// set pin direction
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// - unused : input : 1
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// - input : input : 1
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// - driving : output : 0
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mcp23018_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(IODIRA, I2C_TIMEOUT); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(0b10000000, I2C_TIMEOUT); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(0b11111111, I2C_TIMEOUT); if (mcp23018_status) goto out;
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i2c_stop();
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// set pull-up
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// - unused : on : 1
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// - input : on : 1
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// - driving : off : 0
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mcp23018_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(GPPUA, I2C_TIMEOUT); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(0b10000000, I2C_TIMEOUT); if (mcp23018_status) goto out;
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mcp23018_status = i2c_write(0b11111111, I2C_TIMEOUT); if (mcp23018_status) goto out;
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out:
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i2c_stop();
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// SREG=sreg_prev;
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//uprintf("Init %x\n", mcp23018_status);
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return mcp23018_status;
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}
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const keypos_t PROGMEM hand_swap_config[MATRIX_ROWS][MATRIX_COLS] = {
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{ {0,0}, {0,7}, {2,7}, {3,7} },
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{ {0,8}, {1,8}, {2,8}, {3,8} },
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{ {0,9}, {1,9}, {2,9}, {3,9} },
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{ {0,10}, {1,10}, {2,10}, {3,10} },
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{ {0,11}, {1,11}, {2,11}, {3,11} },
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{ {0,12}, {1,12}, {2,12}, {0,0} },
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{ {0,13}, {1,13}, {2,13}, {0,0} },
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{ {1,0}, {0,0}, {2,0}, {3,0} },
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{ {0,1}, {1,1}, {2,1}, {3,1} },
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{ {0,2}, {1,2}, {2,2}, {3,2} },
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{ {0,3}, {1,3}, {2,3}, {3,3} },
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{ {0,4}, {1,4}, {2,4}, {3,4} },
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{ {0,5}, {1,5}, {2,5}, {3,5} },
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{ {0,6}, {1,6}, {2,6}, {3,6} }
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};
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