From b8c517e46d35e5c9691545eda8fe9b6c40d6943a Mon Sep 17 00:00:00 2001
From: Giovanni Di Sirio <gdisirio@gmail.com>
Date: Mon, 2 Nov 2015 10:07:40 +0000
Subject: Lines support in PAL driver.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@8417 35acf78f-673a-0410-8e92-d51de3d6d3f4
---
 os/hal/templates/pal_lld.h | 51 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

(limited to 'os/hal/templates')

diff --git a/os/hal/templates/pal_lld.h b/os/hal/templates/pal_lld.h
index 71a85d1d9..d8be65452 100644
--- a/os/hal/templates/pal_lld.h
+++ b/os/hal/templates/pal_lld.h
@@ -35,6 +35,52 @@
 /* I/O Ports Types and constants.                                            */
 /*===========================================================================*/
 
+/**
+ * @name    Port related definitions
+ * @{
+ */
+/**
+ * @brief   Width, in bits, of an I/O port.
+ */
+#define PAL_IOPORTS_WIDTH 16
+
+/**
+ * @brief   Whole port mask.
+ * @details This macro specifies all the valid bits into a port.
+ */
+#define PAL_WHOLE_PORT ((ioportmask_t)0xFFFF)
+/** @} */
+
+/**
+ * @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)                                                      \
+  ((stm32_gpio_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   Generic I/O ports static initializer.
  * @details An instance of this structure must be passed to @p palInit() at
@@ -69,6 +115,11 @@ typedef uint32_t ioportmask_t;
  */
 typedef uint32_t iomode_t;
 
+/**
+ * @brief   Type of an I/O line.
+ */
+typedef uint32_t ioline_t;
+
 /**
  * @brief   Port Identifier.
  * @details This type can be a scalar or some kind of pointer, do not make
-- 
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