Initial fw commit

1 files changed, 65 insertions, 0 deletions

diff --git a/fw/global.h b/fw/global.h
new file mode 100644
index 0000000..1109b98
--- /dev/null
+++ b/fw/global.h
@@ -0,0 +1,65 @@
+/* Megumin LED display firmware
+ * Copyright (C) 2018 Sebastian Götte <code@jaseg.net>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GLOBAL_H__
+#define __GLOBAL_H__
+
+/* Workaround for sub-par ST libraries */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wstrict-aliasing"
+#include <stm32f0xx.h>
+#include <stm32f0xx_ll_utils.h>
+#include <stm32f0xx_ll_spi.h>
+#pragma GCC diagnostic pop
+
+#include <system_stm32f0xx.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+#include <unistd.h>
+
+/* Microcontroller part number: STM32F030F4C6 */
+
+/* Things used for module status reporting. */
+#define FIRMWARE_VERSION 1
+#define HARDWARE_VERSION 0
+
+#define TS_CAL1 (*(uint16_t *)0x1FFFF7B8)
+#define VREFINT_CAL (*(uint16_t *)0x1FFFF7BA)
+
+#define VMEAS_R_HIGH 10000 /* kiloohms */
+#define VMEAS_R_LOW 3300 /* kiloohms */
+
+static inline uint16_t be16toh(uint16_t be16in) { return __builtin_bswap16(be16in); }
+static inline uint16_t htobe16(uint16_t hostin) { return __builtin_bswap16(hostin); }
+static inline uint16_t le16toh(uint16_t le16in) { return le16in; }
+static inline uint16_t htole16(uint16_t hostin) { return hostin; }
+
+static inline uint32_t be32toh(uint32_t be32in) { return __builtin_bswap32(be32in); }
+static inline uint32_t htobe32(uint32_t hostin) { return __builtin_bswap32(hostin); }
+static inline uint32_t le32toh(uint32_t le32in) { return le32in; }
+static inline uint32_t htole32(uint32_t hostin) { return hostin; }
+
+
+#define ARRAY_SIZE(arr) \
+    (sizeof(arr) / sizeof((arr)[0]) \
+     + sizeof(typeof(int[1 - 2 * \
+           !!__builtin_types_compatible_p(typeof(arr), \
+                 typeof(&arr[0]))])) * 0)
+
+#endif/*__GLOBAL_H__*/