FreeCalypso > hg > fc-tourmaline

comparison src/cs/drivers/drv_app/r2d/lcds/luna/r2d_onoff_i.c @ 277:0196b6bf633c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
R2D: LCD hardware suspend implemented for Luna
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 07 Sep 2021 22:18:20 +0000
parents 6541e43f88e5
children 75758d7a9be3
comparison
equal deleted inserted replaced
276:4221c724c664 277:0196b6bf633c
1 #include "r2d/lcds/luna/r2d_luna_lcd.h" 1 #include "r2d/lcds/luna/r2d_luna_lcd.h"
2 #include "main/sys_types.h" 2 #include "main/sys_types.h"
3 #include "armio.h" 3 #include "armio.h"
4
5 static void lcd_suspend(void)
6 {
7 if (r2d_lcd_hw_suspend)
8 return; /* already in suspend */
9 r2d_lcd_hw_suspend = 1;
10 LCD_REG_WR(0x0007, 0); /* display off */
11 rvf_delay(RVF_MS_TO_TICKS(50));
12 LCD_REG_WR(0x0010, 1); /* suspend mode */
13 }
14
15 static void lcd_resume(void)
16 {
17 if (!r2d_lcd_hw_suspend)
18 return; /* already on */
19 LCD_REG_WR(0x0010, 0); /* out of suspend */
20 rvf_delay(RVF_MS_TO_TICKS(50));
21 LCD_REG_WR(0x0007, 0x1017); /* display on */
22 r2d_lcd_hw_suspend = 0;
23 r2d_refresh();
24 }
4 25
5 static void r2d_onoff_action(enum blrr_display_state set_state) 26 static void r2d_onoff_action(enum blrr_display_state set_state)
6 { 27 {
7 UBYTE on_off; 28 UBYTE on_off;
8 29
9 /* 30 /*
10 * PWL control: on our current Luna setups (Caramel2 or iWOW DSK) 31 * PWL control: on our current Luna setups (Caramel2 or iWOW DSK)
11 * PWL is only an indicator LED for developers, but the Mother's 32 * PWL is only an indicator LED for developers. We use this PWL
12 * plan for the dream FreeCalypso handset includes having PWL 33 * indicator to show the state of "virtual dimming", as there is
13 * regulate the backlight intensity. 34 * no physical LCD backlight dimming control on Luna.
14 */ 35 */
15 switch (set_state) { 36 switch (set_state) {
16 case BLRR_DISPLAY_OFF: 37 case BLRR_DISPLAY_OFF:
17 *(volatile SYS_UWORD8 *)0xFFFE8000 = 0; 38 *(volatile SYS_UWORD8 *)0xFFFE8000 = 0;
18 *(volatile SYS_UWORD8 *)0xFFFE8001 = 0; 39 *(volatile SYS_UWORD8 *)0xFFFE8001 = 0;
34 on_off = 1; 55 on_off = 1;
35 break; 56 break;
36 default: 57 default:
37 return; /* error, but we are a void function */ 58 return; /* error, but we are a void function */
38 } 59 }
39 /* physical backlight on/off */ 60 /* physical LCD and backlight on/off */
40 if (on_off) 61 if (on_off) {
62 lcd_resume();
41 AI_SetBit(9); 63 AI_SetBit(9);
42 else 64 } else {
43 AI_ResetBit(9); 65 AI_ResetBit(9);
44 /* TFT on/off control remains to be implemented */ 66 lcd_suspend();
67 }
45 } 68 }