FreeCalypso > hg > freecalypso-tools
diff target-utils/lunadrv/sleep.c @ 849:a66095c7f35f
lunadrv: add suspend and resume commands
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 18 Aug 2021 04:00:14 +0000 |
parents | |
children | 57f7db8c4f45 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/target-utils/lunadrv/sleep.c Wed Aug 18 04:00:14 2021 +0000 @@ -0,0 +1,27 @@ +/* + * This module implements suspend and resume commands for entering + * and exiting ILI9225G sleep mode. These commands are expected + * to work the same on both HaoRan and Formike LCDs, but the + * current measurement resistor that allows one to see the actual + * power supply current drawn by the LCD is present only on lunalcd2 + * boards. + */ + +#include "types.h" +#include "luna.h" + +void +cmd_suspend() +{ + LCD_REG_WR(0x0007, 0); /* display off */ + wait_ARM_cycles(DELAY_1MS * 50); + LCD_REG_WR(0x0010, 1); /* suspend mode */ +} + +void +cmd_resume() +{ + LCD_REG_WR(0x0010, 0); /* out of suspend */ + wait_ARM_cycles(DELAY_1MS * 50); + LCD_REG_WR(0x0007, 0x1017); /* display on */ +}