1 files changed, 267 insertions, 0 deletions

diff --git a/lib/chibios/os/hal/ports/simulator/hal_pal_lld.h b/lib/chibios/os/hal/ports/simulator/hal_pal_lld.h
new file mode 100644
index 000000000..dc8685e86
--- /dev/null
+++ b/lib/chibios/os/hal/ports/simulator/hal_pal_lld.h
@@ -0,0 +1,267 @@
+/*
+    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+    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    hal_pal_lld.h
+ * @brief   Simulator low level PAL driver header.
+ *
+ * @addtogroup SIMULATOR_PAL
+ * @{
+ */
+
+#ifndef HAL_PAL_LLD_H
+#define HAL_PAL_LLD_H
+
+#if (HAL_USE_PAL == TRUE) || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Unsupported modes and specific modes                                      */
+/*===========================================================================*/
+
+#undef PAL_MODE_INPUT_PULLUP
+#undef PAL_MODE_INPUT_PULLDOWN
+#undef PAL_MODE_OUTPUT_OPENDRAIN
+#undef PAL_MODE_INPUT_ANALOG
+
+/*===========================================================================*/
+/* I/O Ports Types and constants.                                            */
+/*===========================================================================*/
+
+/**
+ * @brief   VIO port structure.
+ */
+typedef struct {
+  /**
+   * @brief   VIO_LATCH register.
+   * @details This register represents the output latch of the VIO port.
+   */
+  uint32_t          latch;
+  /**
+   * @brief   VIO_PIN register.
+   * @details This register represents the logical level at the VIO port
+   *          pin level.
+   */
+  uint32_t          pin;
+  /**
+   * @brief   VIO_DIR register.
+   * @details Direction of the VIO port bits, 0=input, 1=output.
+   */
+  uint32_t          dir;
+} sim_vio_port_t;
+
+/**
+ * @brief   Virtual I/O ports static initializer.
+ * @details An instance of this structure must be passed to @p palInit() at
+ *          system startup time in order to initialized the digital I/O
+ *          subsystem. This represents only the initial setup, specific pads
+ *          or whole ports can be reprogrammed at later time.
+ */
+typedef struct {
+  /**
+   * @brief Virtual port 1 setup data.
+   */
+  sim_vio_port_t    VP1Data;
+  /**
+   * @brief Virtual port 2 setup data.
+   */
+  sim_vio_port_t    VP2Data;
+} PALConfig;
+
+/**
+ * @brief   Width, in bits, of an I/O port.
+ */
+#define PAL_IOPORTS_WIDTH 32
+
+/**
+ * @brief   Whole port mask.
+ * @details This macro specifies all the valid bits into a port.
+ */
+#define PAL_WHOLE_PORT              ((ioportmask_t)0xFFFFFFFFU)
+/** @} */
+
+/**
+ * @name    Line handling macros
+ * @{
+ */
+/**
+ * @brief   Forms a line identifier.
+ * @details A port/pad pair are encoded into an @p ioline_t type. The encoding
+ *          of this type is platform-dependent.
+ */
+#define PAL_LINE(port, pad)                                                 \
+  ((ioline_t)((uint32_t)(port)) | ((uint32_t)(pad)))
+
+/**
+ * @brief   Decodes a port identifier from a line identifier.
+ */
+#define PAL_PORT(line)                                                      \
+  ((sim_vio_port_t *)(((uint32_t)(line)) & 0xFFFFFFF0U))
+
+/**
+ * @brief   Decodes a pad identifier from a line identifier.
+ */
+#define PAL_PAD(line)                                                       \
+  ((uint32_t)((uint32_t)(line) & 0x0000000FU))
+
+/**
+ * @brief   Value identifying an invalid line.
+ */
+#define PAL_NOLINE                      0U
+/** @} */
+
+/**
+ * @brief   Digital I/O port sized unsigned type.
+ */
+typedef uint32_t ioportmask_t;
+
+/**
+ * @brief   Digital I/O modes.
+ */
+typedef uint32_t iomode_t;
+
+/**
+ * @brief   Type of an I/O line.
+ */
+typedef uint32_t ioline_t;
+
+/**
+ * @brief   Port Identifier.
+ */
+typedef sim_vio_port_t * ioportid_t;
+
+/**
+ * @brief   Type of an pad identifier.
+ */
+typedef uint32_t iopadid_t;
+
+/*===========================================================================*/
+/* I/O Ports Identifiers.                                                    */
+/*===========================================================================*/
+
+/**
+ * @brief   VIO port 1 identifier.
+ */
+#define IOPORT1         (&vio_port_1)
+
+/**
+ * @brief   VIO port 2 identifier.
+ */
+#define IOPORT2         (&vio_port_2)
+
+/*===========================================================================*/
+/* Implementation, some of the following macros could be implemented as      */
+/* functions, if so please put them in pal_lld.c.                            */
+/*===========================================================================*/
+
+/**
+ * @brief   Low level PAL subsystem initialization.
+ *
+ * @param[in] config    architecture-dependent ports configuration
+ *
+ * @notapi
+ */
+#define pal_lld_init(config)                                                \
+  (vio_port_1 = (config)->VP1Data,                                          \
+   vio_port_2 = (config)->VP2Data)
+
+/**
+ * @brief   Reads the physical I/O port states.
+ *
+ * @param[in] port      port identifier
+ * @return              The port bits.
+ *
+ * @notapi
+ */
+#define pal_lld_readport(port) ((port)->pin)
+
+/**
+ * @brief   Reads the output latch.
+ * @details The purpose of this function is to read back the latched output
+ *          value.
+ *
+ * @param[in] port      port identifier
+ * @return              The latched logical states.
+ *
+ * @notapi
+ */
+#define pal_lld_readlatch(port) ((port)->latch)
+
+/**
+ * @brief   Writes a bits mask on a I/O port.
+ *
+ * @param[in] port      port identifier
+ * @param[in] bits      bits to be written on the specified port
+ *
+ * @notapi
+ */
+#define pal_lld_writeport(port, bits) ((port)->latch = (bits))
+
+/**
+ * @brief   Pads group mode setup.
+ * @details This function programs a pads group belonging to the same port
+ *          with the specified mode.
+ * @note    Programming an unknown or unsupported mode is silently ignored.
+ *
+ * @param[in] port      port identifier
+ * @param[in] mask      group mask
+ * @param[in] offset    group bit offset within the port
+ * @param[in] mode      group mode
+ *
+ * @notapi
+ */
+#define pal_lld_setgroupmode(port, mask, offset, mode)                      \
+  _pal_lld_setgroupmode(port, mask << offset, mode)
+
+/**
+ * @brief   Returns a PAL event structure associated to a pad.
+ *
+ * @param[in] port      port identifier
+ * @param[in] pad       pad number within the port
+ *
+ * @notapi
+ */
+#define pal_lld_get_pad_event(port, pad) NULL; (void)(port); (void)pad
+
+/**
+ * @brief   Returns a PAL event structure associated to a line.
+ *
+ * @param[in] line      line identifier
+ *
+ * @notapi
+ */
+#define pal_lld_get_line_event(line) NULL; (void)line
+
+#if !defined(__DOXYGEN__)
+extern sim_vio_port_t vio_port_1;
+extern sim_vio_port_t vio_port_2;
+extern const PALConfig pal_default_config;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void _pal_lld_setgroupmode(ioportid_t port,
+                             ioportmask_t mask,
+                             iomode_t mode);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_PAL == TRUE */
+
+#endif /* HAL_PAL_LLD_H */
+
+/** @} */