Commit | Line | Data |
---|---|---|
a074364c | 1 | #include <stdbool.h> |
2 | #include <avr/sleep.h> | |
3 | #include <avr/wdt.h> | |
4 | #include <avr/interrupt.h> | |
5 | #include "matrix.h" | |
6 | #include "action.h" | |
7 | #include "backlight.h" | |
8 | #include "suspend_avr.h" | |
9 | #include "suspend.h" | |
10 | #include "timer.h" | |
b2badef7 | 11 | #include "led.h" |
4b3358ac | 12 | |
a074364c | 13 | #ifdef PROTOCOL_LUFA |
4b3358ac | 14 | #include "lufa.h" |
a074364c | 15 | #endif |
16 | ||
4b3358ac I |
17 | #ifdef AUDIO_ENABLE |
18 | #include "audio.h" | |
19 | #endif /* AUDIO_ENABLE */ | |
20 | ||
21 | ||
a074364c | 22 | |
23 | #define wdt_intr_enable(value) \ | |
24 | __asm__ __volatile__ ( \ | |
25 | "in __tmp_reg__,__SREG__" "\n\t" \ | |
26 | "cli" "\n\t" \ | |
27 | "wdr" "\n\t" \ | |
28 | "sts %0,%1" "\n\t" \ | |
29 | "out __SREG__,__tmp_reg__" "\n\t" \ | |
30 | "sts %0,%2" "\n\t" \ | |
31 | : /* no outputs */ \ | |
32 | : "M" (_SFR_MEM_ADDR(_WD_CONTROL_REG)), \ | |
33 | "r" (_BV(_WD_CHANGE_BIT) | _BV(WDE)), \ | |
34 | "r" ((uint8_t) ((value & 0x08 ? _WD_PS3_MASK : 0x00) | \ | |
35 | _BV(WDIE) | (value & 0x07)) ) \ | |
36 | : "r0" \ | |
37 | ) | |
38 | ||
39 | ||
40 | void suspend_idle(uint8_t time) | |
41 | { | |
42 | cli(); | |
43 | set_sleep_mode(SLEEP_MODE_IDLE); | |
44 | sleep_enable(); | |
45 | sei(); | |
46 | sleep_cpu(); | |
47 | sleep_disable(); | |
48 | } | |
49 | ||
5893f0fa | 50 | #ifndef NO_SUSPEND_POWER_DOWN |
a074364c | 51 | /* Power down MCU with watchdog timer |
52 | * wdto: watchdog timer timeout defined in <avr/wdt.h> | |
53 | * WDTO_15MS | |
54 | * WDTO_30MS | |
55 | * WDTO_60MS | |
56 | * WDTO_120MS | |
57 | * WDTO_250MS | |
58 | * WDTO_500MS | |
59 | * WDTO_1S | |
60 | * WDTO_2S | |
61 | * WDTO_4S | |
62 | * WDTO_8S | |
63 | */ | |
64 | static uint8_t wdt_timeout = 0; | |
5893f0fa | 65 | |
a074364c | 66 | static void power_down(uint8_t wdto) |
67 | { | |
68 | #ifdef PROTOCOL_LUFA | |
69 | if (USB_DeviceState == DEVICE_STATE_Configured) return; | |
70 | #endif | |
71 | wdt_timeout = wdto; | |
72 | ||
73 | // Watchdog Interrupt Mode | |
74 | wdt_intr_enable(wdto); | |
75 | ||
b2badef7 | 76 | #ifdef BACKLIGHT_ENABLE |
a70f4396 | 77 | backlight_set(0); |
b2badef7 PE |
78 | #endif |
79 | ||
a70f4396 I |
80 | // Turn off LED indicators |
81 | led_set(0); | |
82 | ||
4b3358ac | 83 | #ifdef AUDIO_ENABLE |
157ddccc JH |
84 | // This sometimes disables the start-up noise, so it's been disabled |
85 | // stop_all_notes(); | |
4b3358ac I |
86 | #endif /* AUDIO_ENABLE */ |
87 | ||
a074364c | 88 | // TODO: more power saving |
89 | // See PicoPower application note | |
90 | // - I/O port input with pullup | |
91 | // - prescale clock | |
92 | // - BOD disable | |
93 | // - Power Reduction Register PRR | |
94 | set_sleep_mode(SLEEP_MODE_PWR_DOWN); | |
95 | sleep_enable(); | |
96 | sei(); | |
97 | sleep_cpu(); | |
98 | sleep_disable(); | |
99 | ||
100 | // Disable watchdog after sleep | |
101 | wdt_disable(); | |
102 | } | |
5893f0fa | 103 | #endif |
a074364c | 104 | |
105 | void suspend_power_down(void) | |
106 | { | |
5893f0fa | 107 | #ifndef NO_SUSPEND_POWER_DOWN |
a074364c | 108 | power_down(WDTO_15MS); |
5893f0fa | 109 | #endif |
a074364c | 110 | } |
111 | ||
6b588eb7 | 112 | __attribute__ ((weak)) void matrix_power_up(void) {} |
113 | __attribute__ ((weak)) void matrix_power_down(void) {} | |
a074364c | 114 | bool suspend_wakeup_condition(void) |
115 | { | |
116 | matrix_power_up(); | |
117 | matrix_scan(); | |
118 | matrix_power_down(); | |
8e88d55b JH |
119 | for (uint8_t r = 0; r < MATRIX_ROWS; r++) { |
120 | if (matrix_get_row(r)) return true; | |
121 | } | |
122 | return false; | |
a074364c | 123 | } |
124 | ||
125 | // run immediately after wakeup | |
126 | void suspend_wakeup_init(void) | |
127 | { | |
128 | // clear keyboard state | |
129 | clear_keyboard(); | |
130 | #ifdef BACKLIGHT_ENABLE | |
131 | backlight_init(); | |
132 | #endif | |
cf3926a8 | 133 | led_set(host_keyboard_leds()); |
a074364c | 134 | } |
135 | ||
136 | #ifndef NO_SUSPEND_POWER_DOWN | |
137 | /* watchdog timeout */ | |
138 | ISR(WDT_vect) | |
139 | { | |
140 | // compensate timer for sleep | |
141 | switch (wdt_timeout) { | |
142 | case WDTO_15MS: | |
143 | timer_count += 15 + 2; // WDTO_15MS + 2(from observation) | |
144 | break; | |
145 | default: | |
146 | ; | |
147 | } | |
148 | } | |
149 | #endif |