[ILI9320] LLD for olimex pic32 demo board

2 files changed, 116 insertions, 0 deletions

diff --git a/drivers/gdisp/ILI9320/gdisp_lld.c b/drivers/gdisp/ILI9320/gdisp_lld.c
index 9daab02e..857d64e2 100644
--- a/drivers/gdisp/ILI9320/gdisp_lld.c
+++ b/drivers/gdisp/ILI9320/gdisp_lld.c
@@ -40,6 +40,8 @@
 	#include "gdisp_lld_board.h"
 #elif defined(BOARD_OLIMEX_STM32_LCD)
 	#include "gdisp_lld_board_olimex_stm32_lcd.h"
+#elif defined(BOARD_OLIMEX_PIC32MX_LCD)
+	#include "gdisp_lld_board_olimex_pic32mx_lcd.h"
 #else
 	#include "gdisp_lld_board.h"
 #endif
diff --git a/drivers/gdisp/ILI9320/gdisp_lld_board_olimex_pic32mx_lcd.h b/drivers/gdisp/ILI9320/gdisp_lld_board_olimex_pic32mx_lcd.h
new file mode 100644
index 00000000..ec63352a
--- /dev/null
+++ b/drivers/gdisp/ILI9320/gdisp_lld_board_olimex_pic32mx_lcd.h
@@ -0,0 +1,114 @@
+/*
+    ChibiOS/GFX - Copyright (C) 2013
+                 Dmytro Milinevskyy <milinevskyy@gmail.com>
+
+    This file is part of ChibiOS/GFX.
+
+    ChibiOS/GFX 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.
+
+    ChibiOS/GFX 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/>.
+*/
+
+/**
+ * @file    drivers/gdisp/ILI9320/gdisp_lld_board_olimex_pic32mx_lcd.h
+ * @brief   GDISP Graphic Driver subsystem board interface for the ILI9325 display.
+ *
+ * @addtogroup GDISP
+ * @{
+ */
+
+#ifndef GDISP_LLD_BOARD_H
+#define GDISP_LLD_BOARD_H
+
+#ifndef noinline
+#define noinline __attribute__((noinline))
+#endif
+
+static void gdisp_lld_init_board(void) {
+  // RST
+  palSetPadMode(IOPORTA, 7, PAL_MODE_OUTPUT);
+  palClearPad(IOPORTA, 7);
+
+  // RS
+  palSetPadMode(IOPORTA, 10, PAL_MODE_OUTPUT);
+  palSetPad(IOPORTA, 10);
+
+  // CS
+  palSetPadMode(IOPORTA, 9, PAL_MODE_OUTPUT);
+  palClearPad(IOPORTA, 9);
+
+  // Backlight
+  palSetPadMode(IOPORTD, 3, PAL_MODE_OUTPUT);
+  palSetPad(IOPORTD, 3);
+
+  // PMP setup
+  PMMODE = 0;
+  PMAEN = 0;
+  PMCON = 0;
+  PMMODEbits.MODE = 2;
+  PMMODEbits.WAITB = 0;
+  PMMODEbits.WAITM = 1;
+  PMMODEbits.WAITE = 0;
+  PMCONbits.CSF = 0;
+  PMCONbits.PTRDEN = 1;
+  PMCONbits.PTWREN = 1;
+  PMMODEbits.MODE16 = 1;
+  PMCONbits.PMPEN = 1;
+
+  palClearPad(IOPORTA, 9);
+}
+
+#define PmpWaitBusy()   do {} while (PMMODEbits.BUSY)
+
+static noinline void gdisp_lld_reset_pin(bool_t state) {
+  if (state)
+    palClearPad(IOPORTA, 7);
+  else
+    palSetPad(IOPORTA, 7);
+}
+
+static noinline void gdisp_lld_write_index(uint16_t data) {
+  PmpWaitBusy();
+  palClearPad(IOPORTA, 10);
+  PMDIN = data;
+  PmpWaitBusy();
+  palSetPad(IOPORTA, 10);
+}
+
+static noinline void gdisp_lld_write_data(uint16_t data) {
+  PMDIN = data;
+  PmpWaitBusy();
+}
+
+static noinline uint16_t gdisp_lld_read_data(void) {
+  PmpWaitBusy();
+  return PMDIN;
+}
+
+/* if not available, just ignore the argument and return */
+static void gdisp_lld_backlight(uint8_t percentage) {
+  if (percentage)
+    palClearPad(IOPORTD, 3);
+  else
+    palSetPad(IOPORTD, 3);
+}
+
+static inline void acquire_bus(void) {
+  /* Nothing to do here since LCD is the only device on that bus */
+}
+
+static inline void release_bus(void) {
+  /* Nothing to do here since LCD is the only device on that bus */
+}
+#endif /* GDISP_LLD_BOARD_H */
+/** @} */
+