michaelh/zephyr
1
0
Fork 0
Code Releases Activity

drivers: ILI9341 add interface control registers

Browse source 
This enables the option through dts to drive the display
with RGB interface.

Signed-off-by: Konstantinos Papadopoulos <kostas.papadopulos@gmail.com>
This commit is contained in:
Konstantinos Papadopoulos 2022-03-16 01:08:10 +02:00 • committed by Marti Bolivar
commit 5e519fef40
3 changed files with 39 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

13
drivers/display/display_ili9341.c
View file

@ -1,6 +1,7 @@
/*
* Copyright (c) 2020 Teslabs Engineering S.L.
* Copyright (c) 2021 Krivorot Oleg <krivorot.oleg@gmail.com>
* Copyright (c) 2022 Konstantinos Papadopoulos <kostas.papadopulos@gmail.com>
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -115,6 +116,18 @@ int ili9341_regs_init(const struct device *dev)
return r;
}
LOG_HEXDUMP_DBG(regs->ifmode, ILI9341_IFMODE_LEN, "IFMODE");
r = ili9xxx_transmit(dev, ILI9341_IFMODE, regs->ifmode, ILI9341_IFMODE_LEN);
if (r < 0) {
return r;
}
LOG_HEXDUMP_DBG(regs->ifctl, ILI9341_IFCTL_LEN, "IFCTL");
r = ili9xxx_transmit(dev, ILI9341_IFCTL, regs->ifctl, ILI9341_IFCTL_LEN);
if (r < 0) {
return r;
}
LOG_HEXDUMP_DBG(regs->etmod, ILI9341_ETMOD_LEN, "ETMOD");
r = ili9xxx_transmit(dev, ILI9341_ETMOD, regs->etmod, ILI9341_ETMOD_LEN);
if (r < 0) {

13
drivers/display/display_ili9341.h
View file

@ -1,6 +1,7 @@
/*
* Copyright (c) 2020 Teslabs Engineering S.L.
* Copyright (c) 2021 Krivorot Oleg <krivorot.oleg@gmail.com>
* Copyright (c) 2022 Konstantinos Papadopoulos <kostas.papadopulos@gmail.com>
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -11,6 +12,7 @@
/* Commands/registers. */
#define ILI9341_GAMSET 0x26
#define ILI9341_IFMODE 0xB0
#define ILI9341_FRMCTR1 0xB1
#define ILI9341_DISCTRL 0xB6
#define ILI9341_ETMOD 0xB7
@ -26,10 +28,12 @@
#define ILI9341_TIMCTRLB 0xEA
#define ILI9341_PWSEQCTRL 0xED
#define ILI9341_ENABLE3G 0xF2
#define ILI9341_IFCTL 0xF6
#define ILI9341_PUMPRATIOCTRL 0xF7
/* Commands/registers length. */
#define ILI9341_GAMSET_LEN 1U
#define ILI9341_IFMODE_LEN 1U
#define ILI9341_FRMCTR1_LEN 2U
#define ILI9341_DISCTRL_LEN 3U
#define ILI9341_PWCTRL1_LEN 1U
@ -45,6 +49,7 @@
#define ILI9341_TIMCTRLB_LEN 2U
#define ILI9341_PUMPRATIOCTRL_LEN 1U
#define ILI9341_ENABLE3G_LEN 1U
#define ILI9341_IFCTL_LEN 3U
#define ILI9341_ETMOD_LEN 1U
/** X resolution (pixels). */
@ -55,6 +60,7 @@
/** ILI9341 registers to be initialized. */
struct ili9341_regs {
uint8_t gamset[ILI9341_GAMSET_LEN];
uint8_t ifmode[ILI9341_IFMODE_LEN];
uint8_t frmctr1[ILI9341_FRMCTR1_LEN];
uint8_t disctrl[ILI9341_DISCTRL_LEN];
uint8_t pwctrl1[ILI9341_PWCTRL1_LEN];
@ -70,6 +76,7 @@ struct ili9341_regs {
uint8_t timctrlb[ILI9341_TIMCTRLB_LEN];
uint8_t pumpratioctrl[ILI9341_PUMPRATIOCTRL_LEN];
uint8_t enable3g[ILI9341_ENABLE3G_LEN];
uint8_t ifctl[ILI9341_IFCTL_LEN];
uint8_t etmod[ILI9341_ETMOD_LEN];
};
@ -77,6 +84,8 @@ struct ili9341_regs {
#define ILI9341_REGS_INIT(n) \
BUILD_ASSERT(DT_PROP_LEN(DT_INST(n, ilitek_ili9341), gamset) == ILI9341_GAMSET_LEN, \
"ili9341: Error length gamma set (GAMSET) register"); \
BUILD_ASSERT(DT_PROP_LEN(DT_INST(n, ilitek_ili9341), ifmode) == ILI9341_IFMODE_LEN, \
"ili9341: Error length frame rate control (IFMODE) register"); \
BUILD_ASSERT(DT_PROP_LEN(DT_INST(n, ilitek_ili9341), frmctr1) == ILI9341_FRMCTR1_LEN, \
"ili9341: Error length frame rate control (FRMCTR1) register"); \
BUILD_ASSERT(DT_PROP_LEN(DT_INST(n, ilitek_ili9341), disctrl) == ILI9341_DISCTRL_LEN, \
@ -108,10 +117,13 @@ struct ili9341_regs {
"ili9341: Error length Pump ratio control (PUMPRATIOCTRL) register"); \
BUILD_ASSERT(DT_PROP_LEN(DT_INST(n, ilitek_ili9341), enable3g) == ILI9341_ENABLE3G_LEN, \
"ili9341: Error length enable 3G (ENABLE3G) register"); \
BUILD_ASSERT(DT_PROP_LEN(DT_INST(n, ilitek_ili9341), ifctl) == ILI9341_IFCTL_LEN, \
"ili9341: Error length frame rate control (IFCTL) register"); \
BUILD_ASSERT(DT_PROP_LEN(DT_INST(n, ilitek_ili9341), etmod) == ILI9341_ETMOD_LEN, \
"ili9341: Error length entry Mode Set (ETMOD) register"); \
static const struct ili9341_regs ili9xxx_regs_##n = { \
.gamset = DT_PROP(DT_INST(n, ilitek_ili9341), gamset), \
.ifmode = DT_PROP(DT_INST(n, ilitek_ili9341), ifmode), \
.frmctr1 = DT_PROP(DT_INST(n, ilitek_ili9341), frmctr1), \
.disctrl = DT_PROP(DT_INST(n, ilitek_ili9341), disctrl), \
.pwctrl1 = DT_PROP(DT_INST(n, ilitek_ili9341), pwctrl1), \
@ -127,6 +139,7 @@ struct ili9341_regs {
.timctrlb = DT_PROP(DT_INST(n, ilitek_ili9341), timctrlb), \
.pumpratioctrl = DT_PROP(DT_INST(n, ilitek_ili9341), pumpratioctrl), \
.enable3g = DT_PROP(DT_INST(n, ilitek_ili9341), enable3g), \
.ifctl = DT_PROP(DT_INST(n, ilitek_ili9341), ifctl), \
.etmod = DT_PROP(DT_INST(n, ilitek_ili9341), etmod), \
}