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authortrwnh <a@trwnh.com>2022-05-31 00:28:55 -0500
committerGitHub <noreply@github.com>2022-05-31 15:28:55 +1000
commit9e2fe4eff6d36d20aeeea57408216ff329b2bd31 (patch)
treebc943a591e8af6f7960d918b248ab4a2f13c933b
parente869d089b74ba7b1f9dba4b97470dc3f282f7861 (diff)
downloadqmk_firmware-9e2fe4eff6d36d20aeeea57408216ff329b2bd31.tar.gz
qmk_firmware-9e2fe4eff6d36d20aeeea57408216ff329b2bd31.zip
Make SPI Mode configurable and change default mode to 3 (#17263)
-rw-r--r--docs/feature_rgb_matrix.md1
-rw-r--r--drivers/led/aw20216.c6
2 files changed, 6 insertions, 1 deletions
diff --git a/docs/feature_rgb_matrix.md b/docs/feature_rgb_matrix.md
index 295e610fc4..ec67e32078 100644
--- a/docs/feature_rgb_matrix.md
+++ b/docs/feature_rgb_matrix.md
@@ -409,6 +409,7 @@ You can use up to 2 AW20216 IC's. Do not specify `DRIVER_<N>_xxx` defines for IC
| `DRIVER_LED_TOTAL` | (Required) How many RGB lights are present across all drivers | |
| `AW_SCALING_MAX` | (Optional) LED current scaling value (0-255, higher values mean LED is brighter at full PWM) | 150 |
| `AW_GLOBAL_CURRENT_MAX` | (Optional) Driver global current limit (0-255, higher values means the driver may consume more power) | 150 |
+| `AW_SPI_MODE` | (Optional) Mode for SPI communication (0-3, defines polarity and phase of the clock) | 3 |
| `AW_SPI_DIVISOR` | (Optional) Clock divisor for SPI communication (powers of 2, smaller numbers means faster communication, should not be less than 4) | 4 |
Here is an example using 2 drivers.
diff --git a/drivers/led/aw20216.c b/drivers/led/aw20216.c
index 448accdcd3..299434f909 100644
--- a/drivers/led/aw20216.c
+++ b/drivers/led/aw20216.c
@@ -53,6 +53,10 @@
# define AW_GLOBAL_CURRENT_MAX 150
#endif
+#ifndef AW_SPI_MODE
+# define AW_SPI_MODE 3
+#endif
+
#ifndef AW_SPI_DIVISOR
# define AW_SPI_DIVISOR 4
#endif
@@ -63,7 +67,7 @@ bool g_pwm_buffer_update_required[DRIVER_COUNT] = {false};
bool AW20216_write(pin_t cs_pin, uint8_t page, uint8_t reg, uint8_t* data, uint8_t len) {
static uint8_t s_spi_transfer_buffer[2] = {0};
- if (!spi_start(cs_pin, false, 3, AW_SPI_DIVISOR)) {
+ if (!spi_start(cs_pin, false, AW_SPI_MODE, AW_SPI_DIVISOR)) {
spi_stop();
return false;
}