initrd, lcd, file cleanup

3 files changed, 82 insertions, 0 deletions

diff --git a/include/gpio.h b/include/gpio.h
new file mode 100644
index 0000000..25b32fe
--- /dev/null
+++ b/include/gpio.h
@@ -0,0 +1,45 @@
+#ifndef GPIO_H_
+#define GPIO_H_
+
+#include <stm32l476xx.h>
+
+#define GPIO_PORT(p, b) GPIO##p, b
+
+enum GPIO_MODE
+{
+	INPUT = 0,
+	OUTPUT,
+	ALTERNATE,
+	ANALOG
+};
+
+enum GPIO_TYPE
+{
+	PUSHPULL = 0,
+	OPENDRAIN
+};
+
+enum GPIO_SPEED
+{
+	LOW = 0,
+	MEDIUM,
+	HIGH,
+	VERYHIGH
+};
+
+enum GPIO_PUPD
+{
+	NOPUPD,
+	PULLUP,
+	PULLDOWN
+};
+
+void gpio_init(void);
+
+void gpio_pupd(GPIO_TypeDef *port, uint8_t pin, uint8_t pupd);
+void gpio_type(GPIO_TypeDef *port, uint8_t pin, uint8_t type);
+void gpio_mode(GPIO_TypeDef *port, uint8_t pin, uint8_t mode);
+void gpio_dout(GPIO_TypeDef *port, uint8_t pin, uint8_t val);
+uint8_t gpio_din(GPIO_TypeDef *port, uint8_t pin);
+
+#endif // GPIO_H_
diff --git a/include/initrd.h b/include/initrd.h
new file mode 100644
index 0000000..9c7a9de
--- /dev/null
+++ b/include/initrd.h
@@ -0,0 +1,23 @@
+#ifndef INITRD_H_
+#define INITRD_H_
+
+#include <stdint.h>
+
+typedef struct
+{
+	char signature[8];
+} __attribute__ ((packed)) initrd_header;
+
+typedef struct 
+{
+	char name[16];
+	uint8_t unused[32];
+	char size[10];
+	char sig[2];
+} __attribute__ ((packed)) initrd_file;
+
+uint8_t initrd_validate(void);
+char *initrd_getfile(const char *name);
+uint32_t initrd_getfilesize(const char *name);
+
+#endif // INITRD_H_
diff --git a/include/lcd.h b/include/lcd.h
new file mode 100644
index 0000000..0962e08
--- /dev/null
+++ b/include/lcd.h
@@ -0,0 +1,14 @@
+#ifndef LCD_H_
+#define LCD_H_
+
+#include <stdint.h>
+
+void lcd_init(void);
+
+void lcd_puts(const char *s);
+void lcd_puti(int i);
+void lcd_puth(int h);
+void lcd_putb(uint8_t b);
+void lcd_clear(void);
+
+#endif // LCD_H_