restructuring

deprecated/F1/nokia5110/hw_init.h

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+/*
+ * hw_init.h
+ *
+ * Copyright 2015 Edward V. Emelianoff <eddy@sao.ru, edward.emelianoff@gmail.com>
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+#pragma once
+#ifndef __HW_INIT_H__
+#define __HW_INIT_H__
+
+#include "main.h"
+
+/*
+ * USB interface
+ */
+// USB_DICS (disconnect) - PC11
+#define USB_DISC_PIN		GPIO11
+#define USB_DISC_PORT		GPIOC
+// USB_POWER (high level when USB connected to PC)
+#define USB_POWER_PIN		GPIO10
+#define USB_POWER_PORT		GPIOC
+// change signal level on USB diconnect pin
+#define usb_disc_high()   gpio_set(USB_DISC_PORT, USB_DISC_PIN)
+#define usb_disc_low()    gpio_clear(USB_DISC_PORT, USB_DISC_PIN)
+// in case of n-channel FET on 1.5k pull-up change on/off disconnect means low level
+// in case of pnp bipolar transistor or p-channel FET on 1.5k pull-up disconnect means high level
+#define usb_disconnect()  usb_disc_high()
+#define usb_connect()     usb_disc_low()
+
+void GPIO_init();
+void SysTick_init();
+
+/* here are functions & macros for changing command pins state:
+ *   SET_DC()    - set D/~C pin high (data)
+ *   CLEAR_DC()  - clear D/~C (command)
+ *   CHIP_EN()   - clear ~SCE
+ *   CHIP_DIS()  - set ~SCE (disable chip)
+ *   CLEAR_RST() - set 1 on RST pin
+ *   LCD_RST()   - set 0 on RST pin
+ */
+/* pins:
+ * DC:  PB6
+ * SCE: PB7
+ * RST: PB8
+ */
+#define DC_PORT   GPIOB
+#define SCE_PORT  GPIOB
+#define RST_PORT  GPIOB
+#define DC_PIN    GPIO6
+#define SCE_PIN   GPIO7
+#define RST_PIN   GPIO8
+
+#define SET_DC()    do{GPIO_BSRR(DC_PORT) = DC_PIN;}while(0)
+#define CLEAR_DC()  do{GPIO_BSRR(DC_PORT) = DC_PIN << 16;}while(0)
+#define CHIP_EN()   do{GPIO_BSRR(SCE_PORT) = SCE_PIN << 16;}while(0)
+#define CHIP_DIS()  do{GPIO_BSRR(SCE_PORT) = SCE_PIN;}while(0)
+#define CLEAR_RST() do{GPIO_BSRR(RST_PORT) = RST_PIN;}while(0)
+#define LCD_RST()   do{GPIO_BSRR(RST_PORT) = RST_PIN << 16;}while(0)
+
+#endif // __HW_INIT_H__