From 7772ea4579a45bcf63ebd5e68be66ba1a9c72dfa Mon Sep 17 00:00:00 2001 From: Clyne Sullivan Date: Fri, 11 Nov 2016 15:02:17 -0500 Subject: chibios! --- .../os/various/devices_lib/others/max7219.c | 94 +++++++++++ .../os/various/devices_lib/others/max7219.h | 187 +++++++++++++++++++++ 2 files changed, 281 insertions(+) create mode 100644 ChibiOS_16.1.5/community/os/various/devices_lib/others/max7219.c create mode 100644 ChibiOS_16.1.5/community/os/various/devices_lib/others/max7219.h (limited to 'ChibiOS_16.1.5/community/os/various/devices_lib/others') diff --git a/ChibiOS_16.1.5/community/os/various/devices_lib/others/max7219.c b/ChibiOS_16.1.5/community/os/various/devices_lib/others/max7219.c new file mode 100644 index 0000000..0e51167 --- /dev/null +++ b/ChibiOS_16.1.5/community/os/various/devices_lib/others/max7219.c @@ -0,0 +1,94 @@ +/* + Pretty LAYer for ChibiOS/RT - Copyright (C) 2015 Rocco Marco Guglielmi + + This file is part of PLAY for ChibiOS/RT. + + PLAY 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. + + PLAY 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 . +*/ + +/* + Special thanks to Giovanni Di Sirio for teachings, his moral support and + friendship. Note that some or every piece of this file could be part of + the ChibiOS project that is intellectual property of Giovanni Di Sirio. + Please refer to ChibiOS/RT license before use this file. + + For suggestion or Bug report - roccomarco.guglielmi@playembedded.org + */ + +/** + * @file max7219.c + * @brief MAX7219 display driver module code. + * + * @addtogroup max7219 + * @{ + */ + +#include "ch.h" +#include "hal.h" + +#include "max7219.h" + +/*===========================================================================*/ +/* Driver local definitions. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver exported variables. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver local variables and types. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver local functions. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver exported functions. */ +/*===========================================================================*/ + +/** + * @brief Reads a generic register value. + * @pre The SPI interface must be initialized and the driver started. + * + * @param[in] spip pointer to the SPI interface + * @param[in] adr address number + * @param[in] data data value. + */ +void max7219WriteRegister(SPIDriver *spip, uint16_t adr, uint8_t data) { + + switch (adr) { + default: + return; + case MAX7219_AD_DIGIT_0: + case MAX7219_AD_DIGIT_1: + case MAX7219_AD_DIGIT_2: + case MAX7219_AD_DIGIT_3: + case MAX7219_AD_DIGIT_4: + case MAX7219_AD_DIGIT_5: + case MAX7219_AD_DIGIT_6: + case MAX7219_AD_DIGIT_7: + case MAX7219_AD_DECODE_MODE: + case MAX7219_AD_INTENSITY: + case MAX7219_AD_SCAN_LIMIT: + case MAX7219_AD_SHUTDOWN: + case MAX7219_AD_DISPLAY_TEST: + spiSelect(spip); + uint16_t txbuf = {adr | data}; + spiSend(spip, 1, &txbuf); + spiUnselect(spip); + } +} +/** @} */ diff --git a/ChibiOS_16.1.5/community/os/various/devices_lib/others/max7219.h b/ChibiOS_16.1.5/community/os/various/devices_lib/others/max7219.h new file mode 100644 index 0000000..e672be9 --- /dev/null +++ b/ChibiOS_16.1.5/community/os/various/devices_lib/others/max7219.h @@ -0,0 +1,187 @@ +/* + Pretty LAYer for ChibiOS/RT - Copyright (C) 2015 Rocco Marco Guglielmi + + This file is part of PLAY for ChibiOS/RT. + + PLAY 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. + + PLAY 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 . +*/ + +/* + Special thanks to Giovanni Di Sirio for teachings, his moral support and + friendship. Note that some or every piece of this file could be part of + the ChibiOS project that is intellectual property of Giovanni Di Sirio. + Please refer to ChibiOS/RT license before use this file. + + For suggestion or Bug report - roccomarco.guglielmi@playembedded.org + */ + +/** + * @file MAX7219.h + * @brief MAX7219 display driver module header. + * + * @{ + */ + +#ifndef _MAX7219_H_ +#define _MAX7219_H_ + +/*===========================================================================*/ +/* Driver constants. */ +/*===========================================================================*/ + +/** + * @name MAX7219 register names + * @{ + */ +/******************************************************************************/ +/* */ +/* MAX7219 display driver */ +/* */ +/******************************************************************************/ +/******************* Bit definition for SPI communication *******************/ +#define MAX7219_DI ((uint16_t)0x00FF) /*!< DI[7:0] Data input */ +#define MAX7219_DI_0 ((uint16_t)0x0001) /*!< bit 0 */ +#define MAX7219_DI_1 ((uint16_t)0x0002) /*!< bit 1 */ +#define MAX7219_DI_2 ((uint16_t)0x0004) /*!< bit 2 */ +#define MAX7219_DI_3 ((uint16_t)0x0008) /*!< bit 3 */ +#define MAX7219_DI_4 ((uint16_t)0x0010) /*!< bit 4 */ +#define MAX7219_DI_5 ((uint16_t)0x0020) /*!< bit 5 */ +#define MAX7219_DI_6 ((uint16_t)0x0040) /*!< bit 6 */ +#define MAX7219_DI_7 ((uint16_t)0x0080) /*!< bit 7 */ + +#define MAX7219_AD ((uint16_t)0x0F00) /*!< AD[11:8] Data input */ +#define MAX7219_AD_0 ((uint16_t)0x0100) /*!< bit 8 */ +#define MAX7219_AD_1 ((uint16_t)0x0200) /*!< bit 9 */ +#define MAX7219_AD_2 ((uint16_t)0x0400) /*!< bit 10 */ +#define MAX7219_AD_3 ((uint16_t)0x0800) /*!< bit 11 */ + +/****************** Bit definition for Registers Addresses *******************/ +#define MAX7219_AD_NOP ((uint16_t)0x0000) /*!< No operation */ +#define MAX7219_AD_DIGIT_0 ((uint16_t)0x0100) /*!< Digit 0 */ +#define MAX7219_AD_DIGIT_1 ((uint16_t)0x0200) /*!< Digit 1 */ +#define MAX7219_AD_DIGIT_2 ((uint16_t)0x0300) /*!< Digit 2 */ +#define MAX7219_AD_DIGIT_3 ((uint16_t)0x0400) /*!< Digit 3 */ +#define MAX7219_AD_DIGIT_4 ((uint16_t)0x0500) /*!< Digit 4 */ +#define MAX7219_AD_DIGIT_5 ((uint16_t)0x0600) /*!< Digit 5 */ +#define MAX7219_AD_DIGIT_6 ((uint16_t)0x0700) /*!< Digit 6 */ +#define MAX7219_AD_DIGIT_7 ((uint16_t)0x0800) /*!< Digit 7 */ +#define MAX7219_AD_DECODE_MODE ((uint16_t)0x0900) /*!< Decode mode */ +#define MAX7219_AD_INTENSITY ((uint16_t)0x0A00) /*!< Intensity */ +#define MAX7219_AD_SCAN_LIMIT ((uint16_t)0x0B00) /*!< Scan limit */ +#define MAX7219_AD_SHUTDOWN ((uint16_t)0x0C00) /*!< Shutdown */ +#define MAX7219_AD_DISPLAY_TEST ((uint16_t)0x0F00) /*!< Display test */ + +/*************** Bit definition for Registers Configuration *****************/ +/** @} */ + +/*===========================================================================*/ +/* Driver pre-compile time settings. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Derived constants and error checks. */ +/*===========================================================================*/ + +#if !HAL_USE_SPI +#error "MAX7219 requires HAL_USE_SPI" +#endif +/*===========================================================================*/ +/* Driver data structures and types. */ +/*===========================================================================*/ + +/** + * @name MAX7219 data structures and types + * @{ + * + */ + +/** + * @brief MAX7219 operation mode + */ +typedef enum { + MAX7219_OM_Shutdown = 0x00, /*!< Shutdown mode */ + MAX7219_OM_Normal = 0x01 /*!< Normal mode */ +} MAX7219_OM_t; + +/** + * @brief MAX7219 decoder mode + */ +typedef enum { + MAX7219_DM_No_decode = 0x00, /*!< No decode */ + MAX7219_DM_CodeB_0 = 0x01, /*!< Code B on Digit 0 */ + MAX7219_DM_CodeB_1 = 0x03, /*!< Code B on Digits 0-1 */ + MAX7219_DM_CodeB_2 = 0x07, /*!< Code B on Digits from 0 to 2 */ + MAX7219_DM_CodeB_3 = 0x0F, /*!< Code B on Digits from 0 to 3 */ + MAX7219_DM_CodeB_4 = 0x1F, /*!< Code B on Digits from 0 to 4 */ + MAX7219_DM_CodeB_5 = 0x3F, /*!< Code B on Digits from 0 to 5 */ + MAX7219_DM_CodeB_6 = 0x7F, /*!< Code B on Digits from 0 to 6 */ + MAX7219_DM_CodeB_7 = 0xFF /*!< Code B on every digit */ +} MAX7219_DM_t; + +/** + * @brief MAX7219 intensity mode + */ +typedef enum { + MAX7219_IM_1_32 = 0x00, /*!< 1/32 intensity */ + MAX7219_IM_3_32 = 0x01, /*!< 3/32 intensity */ + MAX7219_IM_5_32 = 0x02, /*!< 5/32 intensity */ + MAX7219_IM_7_32 = 0x03, /*!< 7/32 intensity */ + MAX7219_IM_9_32 = 0x04, /*!< 9/32 intensity */ + MAX7219_IM_11_32 = 0x05, /*!< 11/32 intensity */ + MAX7219_IM_13_32 = 0x06, /*!< 13/32 intensity */ + MAX7219_IM_15_32 = 0x07, /*!< 15/32 intensity */ + MAX7219_IM_17_32 = 0x08, /*!< 17/32 intensity */ + MAX7219_IM_19_32 = 0x09, /*!< 19/32 intensity */ + MAX7219_IM_21_32 = 0x0A, /*!< 21/32 intensity */ + MAX7219_IM_23_32 = 0x0B, /*!< 23/32 intensity */ + MAX7219_IM_25_32 = 0x0C, /*!< 25/32 intensity */ + MAX7219_IM_27_32 = 0x0D, /*!< 27/32 intensity */ + MAX7219_IM_29_32 = 0x0E, /*!< 29/32 intensity */ + MAX7219_IM_31_32 = 0x0F /*!< 31/32 intensity */ +} MAX7219_IM_t; + +/** + * @brief MAX7219 scan line mode + */ +typedef enum { + MAX7219_SL_0 = 0x00, /*!< Scanned digit 0 only */ + MAX7219_SL_1 = 0x01, /*!< Scanned digit 0 & 1 */ + MAX7219_SL_2 = 0x02, /*!< Scanned digit 0 - 2 */ + MAX7219_SL_3 = 0x03, /*!< Scanned digit 0 - 3 */ + MAX7219_SL_4 = 0x04, /*!< Scanned digit 0 - 4 */ + MAX7219_SL_5 = 0x05, /*!< Scanned digit 0 - 5 */ + MAX7219_SL_6 = 0x06, /*!< Scanned digit 0 - 6 */ + MAX7219_SL_7 = 0x07 /*!< Scanned digit 0 - 7 */ +} MAX7219_SL_t; +/** @} */ +/*===========================================================================*/ +/* Driver macros. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* External declarations. */ +/*===========================================================================*/ + +#ifdef __cplusplus +extern "C" { +#endif + + void max7219WriteRegister(SPIDriver *spip, uint16_t adr, uint8_t data); +#ifdef __cplusplus +} +#endif +#endif /* _MAX7219_H_ */ + +/** @} */ + -- cgit v1.2.3