diff options
Diffstat (limited to 'src/keypad.c')
| -rw-r--r-- | src/keypad.c | 50 |
1 files changed, 43 insertions, 7 deletions
diff --git a/src/keypad.c b/src/keypad.c index b00cf41..cb569e1 100644 --- a/src/keypad.c +++ b/src/keypad.c @@ -35,6 +35,8 @@ #define COL_3 GPIO_PORT(A, 12) #define COL_4 GPIO_PORT(C, 5) +#define BTN_SLEEP GPIO_PORT(C, 11) + #define ROWS 6 #define COLS 5 @@ -59,7 +61,7 @@ static const port_t keypad_cols[COLS] = { static const char keypad_map[ROWS * COLS * 4] = { "\x7F\0\0\0" "\xFF\0\0\0" "\xFF\x02\0\0" "\x19\0\0\0" "\x18\0\0\0" - "x\0\0\0" "\0\0\0\0" "\0\0\0\0" "\x1B\0\0\0" "\x1A\0\0\0" + "sin\0" "cos\0" "tan\0" "\x1B\0\0\0" "\x1A\0\0\0" "7\0\0\0" "8\0\0\0" "9\0\0\0" "(\0\0\0" ")\0\0\0" "4\0\0\0" "5\0\0\0" "6\0\0\0" "/\0\0\0" "*\0\0\0" "1\0\0\0" "2\0\0\0" "3\0\0\0" "-\0\0\0" "+\0\0\0" @@ -67,12 +69,12 @@ static const char keypad_map[ROWS * COLS * 4] = { }; static const char keypad_map_2nd[ROWS * COLS * 4] = { - "a\0\0\0" "b\0\0\0" "c\0\0\0" "d\0\0\0" "e\0\0\0" - "f\0\0\0" "g\0\0\0" "h\0\0\0" "i\0\0\0" "j\0\0\0" - "k\0\0\0" "l\0\0\0" "m\0\0\0" "n\0\0\0" "o\0\0\0" - "p\0\0\0" "q\0\0\0" "r\0\0\0" "s\0\0\0" "t\0\0\0" - "u\0\0\0" "v\0\0\0" "w\0\0\0" "x\0\0\0" "y\0\0\0" - "z\0\0\0" "\0\0\0\0" "\0\0\0\0" "\0\0\0\0" "\xFF\x01\0\0" + "\x7F\0\0\0" "pi\0\0" "X\0\0\0" "Y\0\0\0" "Z\0\0\0" + "A\0\0\0" "B\0\0\0" "C\0\0\0" "D\0\0\0" "E\0\0\0" + "F\0\0\0" "G\0\0\0" "H\0\0\0" "I\0\0\0" "J\0\0\0" + "K\0\0\0" "L\0\0\0" "M\0\0\0" "N\0\0\0" "O\0\0\0" + "P\0\0\0" "Q\0\0\0" "R\0\0\0" "S\0\0\0" "T\0\0\0" + "U\0\0\0" "V\0\0\0" "W\0\0\0" "\b\0\0\0" "\xFF\x01\0\0" }; #define KEY(r, c, i) map[r * COLS * 4 + c * 4 + i] @@ -142,6 +144,19 @@ void keypad_init(void) gpio_speed(p, pin, VERYHIGH); gpio_dout(p, pin, 0); } + + gpio_mode(BTN_SLEEP, OUTPUT); + gpio_dout(BTN_SLEEP, 0); + gpio_mode(BTN_SLEEP, INPUT); + gpio_pupd(BTN_SLEEP, PULLDOWN); + + //SYSCFG->EXTICR[2] |= 0x200; // C10 + EXTI->RTSR1 |= (1 << 11); + EXTI->EMR1 |= (1 << 11); // Allow *10 + EXTI->IMR1 |= (1 << 11); + + // enable IRQ in NVIC + ((uint32_t *)0xE000E100)[1] |= (1 << 8); } void keypad_start(void) @@ -160,3 +175,24 @@ int keypad_get(void) keypad_buffer_pos--; return key; } + +uint32_t sleep_pending = 0; +void EXTI15_10_IRQHandler(void) +{ + uint32_t PR1 = EXTI->PR1; + + if (gpio_din(BTN_SLEEP)) { + while (gpio_din(BTN_SLEEP)); + if (sleep_pending != 0) { + sleep_pending = 0; + extern void wakeup(void); + wakeup(); + } else { + sleep_pending |= 1; + } + return; + } + + EXTI->PR1 |= PR1; +} + |