FreeCalypso > hg > fc-tourmaline

annotate src/cs/drivers/drv_app/r2d/r2d_blrr_api.h @ 281:a75eefbf8be4

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Phone boot with PWON: weed out short button presses Every standard end user phone has a design provision, most naturally implemented in firmware, whereby the PWON button effects a boot only if it is held down long enough - short presses of this PWON button are detected, assumed to be spurious and cause the fw to power back off instead of proceeding with boot. The present change introduces this standard function in FreeCalypso.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 24 Sep 2021 02:03:08 +0000
parents 6541e43f88e5
children
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1 /*
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2 * This header file is a FreeCalypso addition to R2D. It defines
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3 * the API for turning BLRR (backlight required for readability)
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4 * displays on and off, and for communicating different display modes
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5 * which may translate to different display brightness levels
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6 * (different backlight intensity levels) on some hw targets.
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7 */
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8
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9 #ifndef __R2D_BLRR_API_H
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10 #define __R2D_BLRR_API_H
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11
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12 #include "rv/rv_general.h"
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13
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14 enum blrr_display_state {
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15 BLRR_DISPLAY_OFF = 0,
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16 BLRR_DISPLAY_ON,
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17 BLRR_DISPLAY_INCALL,
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18 BLRR_DISPLAY_CHG_BOOT
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19 };
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20
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21 extern T_RV_RET blrr_display_ctrl(enum blrr_display_state);
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22
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23 #endif /* include guard */