Add .clang-format and run clang-format.

4 files changed, 46 insertions, 35 deletions

diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..567ff11
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,11 @@
+BasedOnStyle: Google
+IndentWidth: 2
+BreakBeforeBraces: Custom
+BraceWrapping:
+  AfterFunction: true
+AllowShortFunctionsOnASingleLine: InlineOnly
+AlignAfterOpenBracket: AlwaysBreak
+BinPackArguments: false
+BinPackParameters: false
+ExperimentalAutoDetectBinPacking: false
+AllowAllParametersOfDeclarationOnNextLine: true
diff --git a/include/drv/ws2812b.h b/include/drv/ws2812b.h
index 9cf35e4..b14b31a 100644
--- a/include/drv/ws2812b.h
+++ b/include/drv/ws2812b.h
@@ -3,6 +3,7 @@
 #define INCLUDE_DRV_WS2812B_H_
 
 #include <stdint.h>
+
 #include "driver/spi_master.h"
 
 typedef struct {
@@ -12,7 +13,7 @@ typedef struct {
 } ws2812b_rgb_t;
 
 typedef struct {
-  uint8_t* buf_;       /* Buffer to hold the value to spi. */
+  uint8_t* buf_; /* Buffer to hold the value to spi. */
 
   uint32_t n_rgb;      /* Number of rgb values which exist. */
   ws2812b_rgb_t rgb[]; /* Colors to write. */
diff --git a/main/drv/ws2812b.c b/main/drv/ws2812b.c
index aaa3c07..3ab6b41 100644
--- a/main/drv/ws2812b.c
+++ b/main/drv/ws2812b.c
@@ -27,7 +27,7 @@ static inline void byte_compile(uint8_t byte, uint8_t compl [3])
 
 static inline void compile(ws2812b_buffer_t* buffer)
 {
-  for (size_t i = 0; i < buffer->n_rgb; ++ i) {
+  for (size_t i = 0; i < buffer->n_rgb; ++i) {
     byte_compile(buffer->rgb[i].g, buffer->buf_ + i * 9 + 0);
     byte_compile(buffer->rgb[i].r, buffer->buf_ + i * 9 + 3);
     byte_compile(buffer->rgb[i].b, buffer->buf_ + i * 9 + 6);
@@ -48,7 +48,7 @@ esp_err_t ws2812b_write_sync(ws2812b_t* drv, ws2812b_buffer_t* buffer)
   esp_err_t err;
 
   compile(buffer);
-  spi_transaction_t t = { 0 };
+  spi_transaction_t t = {0};
   spi_transaction_t* rt;
 
   t.tx_buffer = buffer->buf_;
diff --git a/main/main.c b/main/main.c
index cffa6f5..7fbf47d 100644
--- a/main/main.c
+++ b/main/main.c
@@ -1,44 +1,43 @@
-#include "sdkconfig.h"
-#include "freertos/FreeRTOS.h"
-#include "freertos/task.h"
-#include "esp_system.h"
-#include "esp_spi_flash.h"
 #include "driver/spi_master.h"
-
 #include "drv/ws2812b.h"
+#include "esp_spi_flash.h"
+#include "esp_system.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "sdkconfig.h"
 
 #ifdef CONFIG_IDF_TARGET_ESP32
-#define LCD_HOST    HSPI_HOST
+#define LCD_HOST HSPI_HOST
 
 #define PIN_NUM_MISO 25
 #define PIN_NUM_MOSI 23
-#define PIN_NUM_CLK  19
-#define PIN_NUM_CS   22
+#define PIN_NUM_CLK 19
+#define PIN_NUM_CS 22
 
-#define PIN_NUM_DC   21
-#define PIN_NUM_RST  18
+#define PIN_NUM_DC 21
+#define PIN_NUM_RST 18
 #define PIN_NUM_BCKL 5
 #elif defined CONFIG_IDF_TARGET_ESP32S2
-#define LCD_HOST    SPI2_HOST
+#define LCD_HOST SPI2_HOST
 
 #define PIN_NUM_MISO 37
 #define PIN_NUM_MOSI 35
-#define PIN_NUM_CLK  36
-#define PIN_NUM_CS   34
+#define PIN_NUM_CLK 36
+#define PIN_NUM_CS 34
 
-#define PIN_NUM_DC   4
-#define PIN_NUM_RST  5
+#define PIN_NUM_DC 4
+#define PIN_NUM_RST 5
 #define PIN_NUM_BCKL 6
 #elif defined CONFIG_IDF_TARGET_ESP32C3
-#define LCD_HOST    SPI2_HOST
+#define LCD_HOST SPI2_HOST
 
 #define PIN_NUM_MISO 2
 #define PIN_NUM_MOSI 7
-#define PIN_NUM_CLK  6
-#define PIN_NUM_CS   10
+#define PIN_NUM_CLK 6
+#define PIN_NUM_CS 10
 
-#define PIN_NUM_DC   9
-#define PIN_NUM_RST  4
+#define PIN_NUM_DC 9
+#define PIN_NUM_RST 4
 #define PIN_NUM_BCKL 5
 #endif
 
@@ -53,20 +52,20 @@ void app_main(void)
   esp_err_t error;
   spi_device_handle_t spi;
   spi_bus_config_t cfg = {
-    .miso_io_num = PIN_NUM_MISO,
-    .mosi_io_num = PIN_NUM_MOSI,
-    .sclk_io_num = PIN_NUM_CLK,
-    .quadwp_io_num = -1,
-    .quadhd_io_num = -1,
-    .max_transfer_sz = 320 * 2 + 8,
+      .miso_io_num = PIN_NUM_MISO,
+      .mosi_io_num = PIN_NUM_MOSI,
+      .sclk_io_num = PIN_NUM_CLK,
+      .quadwp_io_num = -1,
+      .quadhd_io_num = -1,
+      .max_transfer_sz = 320 * 2 + 8,
   };
 
   spi_device_interface_config_t devcfg = {
-    .clock_speed_hz = 25 * 100 * 1000, /* 2.5 MHz */
-    .mode = 0,
-    .spics_io_num = PIN_NUM_CS,
-    .queue_size = 7,
-    .pre_cb = NULL,
+      .clock_speed_hz = 25 * 100 * 1000, /* 2.5 MHz */
+      .mode = 0,
+      .spics_io_num = PIN_NUM_CS,
+      .queue_size = 7,
+      .pre_cb = NULL,
   };
 
   printf("Hello, World!\n");