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annotate target-utils/lunadrv/sleep.c @ 849:a66095c7f35f

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lunadrv: add suspend and resume commands
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 18 Aug 2021 04:00:14 +0000
parents
children 57f7db8c4f45
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849
a66095c7f35f lunadrv: add suspend and resume commands
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
a66095c7f35f lunadrv: add suspend and resume commands
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2 * This module implements suspend and resume commands for entering
a66095c7f35f lunadrv: add suspend and resume commands
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3 * and exiting ILI9225G sleep mode. These commands are expected
a66095c7f35f lunadrv: add suspend and resume commands
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4 * to work the same on both HaoRan and Formike LCDs, but the
a66095c7f35f lunadrv: add suspend and resume commands
Mychaela Falconia <falcon@freecalypso.org>
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5 * current measurement resistor that allows one to see the actual
a66095c7f35f lunadrv: add suspend and resume commands
Mychaela Falconia <falcon@freecalypso.org>
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6 * power supply current drawn by the LCD is present only on lunalcd2
a66095c7f35f lunadrv: add suspend and resume commands
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7 * boards.
a66095c7f35f lunadrv: add suspend and resume commands
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8 */
a66095c7f35f lunadrv: add suspend and resume commands
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9
a66095c7f35f lunadrv: add suspend and resume commands
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10 #include "types.h"
a66095c7f35f lunadrv: add suspend and resume commands
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11 #include "luna.h"
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12
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13 void
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14 cmd_suspend()
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15 {
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16 LCD_REG_WR(0x0007, 0); /* display off */
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17 wait_ARM_cycles(DELAY_1MS * 50);
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18 LCD_REG_WR(0x0010, 1); /* suspend mode */
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19 }
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20
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21 void
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22 cmd_resume()
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23 {
a66095c7f35f lunadrv: add suspend and resume commands
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24 LCD_REG_WR(0x0010, 0); /* out of suspend */
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25 wait_ARM_cycles(DELAY_1MS * 50);
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26 LCD_REG_WR(0x0007, 0x1017); /* display on */
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27 }