1 files changed, 161 insertions, 0 deletions

diff --git a/lib/chibios-contrib/os/hal/ports/LPC/LPC11Uxx/hal_lld.h b/lib/chibios-contrib/os/hal/ports/LPC/LPC11Uxx/hal_lld.h
new file mode 100644
index 000000000..9ed343e3e
--- /dev/null
+++ b/lib/chibios-contrib/os/hal/ports/LPC/LPC11Uxx/hal_lld.h
@@ -0,0 +1,161 @@
+/*
+    ChibiOS - Copyright (C) 2020 Yaotian Feng / Codetector
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    LPC11Uxx/hal_lld.h
+ * @brief   NXP LPC 11Uxx HAL subsystem low level driver header.
+ *
+ * @addtogroup HAL
+ * @{
+ */
+#ifndef HAL_LLD_H
+#define HAL_LLD_H
+
+#include "LPC11Uxx.h"
+#include "lpc_registry.h"
+
+/*===========================================================================*/
+/* Driver constants.                                                         */
+/*===========================================================================*/
+
+/**
+ * @name    Platform identification macros
+ * @{
+ */
+#define PLATFORM_NAME           "LPC"
+/** @} */
+
+
+/**
+ * @name    PLATFORM configuration options
+ * @{
+ */
+#define LPC_IRC_FREQUENCY   12000000UL // 12MHz
+/** @} */
+
+/*===========================================================================*/
+/* Derived constants and error checks.                                       */
+/*===========================================================================*/
+
+/*
+ * Configuration-related checks.
+ */
+#if !defined(LPC11Uxx_MCUCONF) && !defined(LPC11U35_MCUCONF) && \
+    !defined(LPC11U35_401_MCUCONF)
+    #error "Using a wrong mcuconf.h file, LPC11Uxx_MCUCONF not defined"
+#endif
+
+#if defined(LPC_USE_SYSOSC) && LPC_USE_SYSOSC != FALSE && !defined(LPC_SYSOSC_FREQUENCY)
+    #error "LPC_SYSOSC_FREQUENCY must be defined if LPC_USE_SYSOSC"
+#endif
+
+// SYSTEMPLL SEL
+#if defined(LPC_SYSPLLCLKSEL) && LPC_SYSPLLCLKSEL == SYSCON_SYSPLLCLKSEL_IRC
+    #define LPC_SYSPLLIN_FREQUENCY      (LPC_IRC_FREQUENCY)
+#elif defined(LPC_SYSPLLCLKSEL) && LPC_SYSPLLCLKSEL == SYSCON_SYSPLLCLKSEL_SYSOSC
+    #ifndef LPC_USE_SYSOSC
+    #error "LPC_USE_SYSOSC must be defined when using SYSOSC"
+    #endif
+    #define LPC_SYSPLLIN_FREQUENCY      (LPC_SYSOSC_FREQUENCY)
+#else
+#error "LPC_SYSPLLCLKSEL must be one of SYSCON_SYSPLLCLKSEL_IRC, \
+SYSCON_SYSPLLCLKSEL_SYSOSC"
+#endif
+
+#if defined(LPC_MAINCLKSEL) && LPC_MAINCLKSEL == SYSCON_MAINCLKSEL_IRC
+    // Using Internal OSC
+    #define LPC_MAINCLK_FREQUENCY       (LPC_IRC_FREQUENCY)
+
+#elif defined(LPC_MAINCLKSEL) &&  LPC_MAINCLKSEL == SYSCON_MAINCLKSEL_PLLIN
+    #define LPC_MAINCLK_FREQUENCY       (LPC_SYSPLLIN_FREQUENCY)
+#elif defined(LPC_MAINCLKSEL) &&  LPC_MAINCLKSEL == SYSCON_MAINCLKSEL_WATCHDOG
+
+    #error "Unsupported clock select"
+
+#elif defined(LPC_MAINCLKSEL) &&  LPC_MAINCLKSEL == SYSCON_MAINCLKSEL_PLLOUT
+    // PLL OUT
+    #if defined(LPC_SYSPLL_MULT) && LPC_SYSPLL_MULT > 0 && LPC_SYSPLL_MULT <= 32 \
+    && defined(LPC_SYSPLL_PDIV) && (LPC_SYSPLL_PDIV == 2 || LPC_SYSPLL_PDIV == 4 \
+    || LPC_SYSPLL_PDIV == 8 || LPC_SYSPLL_PDIV == 16)
+
+    #if LPC_SYSPLL_PDIV == 2
+    #define LPC_SYSPLL_PSEL_VAL     0x0U
+    #elif LPC_SYSPLL_PDIV == 4
+    #define LPC_SYSPLL_PSEL_VAL     0x1U
+    #elif LPC_SYSPLL_PDIV == 8
+    #define LPC_SYSPLL_PSEL_VAL     0x2U
+    #elif LPC_SYSPLL_PDIV == 16
+    #define LPC_SYSPLL_PSEL_VAL     0x3U
+    #else
+    #error "INVALID PDIV VALUE"
+    #endif //LPC_SYSPLL_PDIV == xx
+
+    #if (LPC_SYSPLLIN_FREQUENCY * LPC_SYSPLL_MULT * LPC_SYSPLL_PDIV < 156000000UL) ||\
+        (LPC_SYSPLLIN_FREQUENCY * LPC_SYSPLL_MULT * LPC_SYSPLL_PDIV > 320000000UL)
+    #error "Please check the documentation about how to pick MULT and PDIV. \
+current value gives a out of range CCO frequency"
+    #endif
+
+    #define LPC_MAINCLK_FREQUENCY (LPC_SYSPLLIN_FREQUENCY * LPC_SYSPLL_MULT)
+    #define LPC_SYSPLL_MSEL_VAL     (LPC_SYSPLL_MULT - 1)
+
+    #else
+        #error "LPC_SYSPLL_MULT must be defined and btween 1 and 32, \
+                LPC_SYSPLL_PDIV must be one of 2, 4, 8, 16."
+    #endif
+#else
+    #error "Invalid LPC_MAINCLKSEL. Must be one of SYSCON_MAINCLKSEL_IRC, \
+SYSCON_MAINCLKSEL_PLLIN, SYSCON_MAINCLKSEL_WATCHDOG, SYSCON_MAINCLKSEL_PLLOUT"
+#endif
+
+#if !defined(LPC_SYS_DIV) || LPC_SYS_DIV < 1 || LPC_SYS_DIV > 255
+    #error "LPC_SYS_DIV must be between 1 and 255"
+#else
+    #define LPC_SYS_FREQUENCY   (LPC_MAINCLK_FREQUENCY / LPC_SYS_DIV)
+#endif
+
+/*===========================================================================*/
+/* Driver data structures and types.                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver macros.                                                            */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations.                                                    */
+/*===========================================================================*/
+
+
+/*===========================================================================*/
+/* External declarations.                                                    */
+/*===========================================================================*/
+
+#include "nvic.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void hal_lld_init(void);
+  void lpc_clock_init(void);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_LLD_H_ */
+
+/** @} */
+