chibios!

2 files changed, 281 insertions, 0 deletions

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 <http://www.gnu.org/licenses/>.
+*/
+
+/*
+    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 <http://www.gnu.org/licenses/>.
+*/
+
+/*
+    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_ */
+
+/** @} */
+