From 63ea7464925b8cbeb8623d08a2bde0b1d2044047 Mon Sep 17 00:00:00 2001
From: Marti Bolivar <mbolivar@leaflabs.com>
Date: Thu, 24 Mar 2011 17:27:38 -0400
Subject: Adding /wirish/boards/ for easier porting; shrank PIN_MAPs.

/wirish/boards/ contains xxx.h and xxx.cpp (for xxx=maple,
maple_native, maple_mini, maple_RET6).  The headers contain the
board-specific #defines that used to live in boards.h (except
BOARD_INIT, which was removed).  The CPP files contain the PIN_MAP
definitions that used to live in boards.cpp, and a proper boardInit()
function to replace the old BOARD_INIT macro.  This will make it
easier to add new boards in the future.

struct PinMapping was renamed struct stm32_pin_info, and was moved
into a new wirish_types.h.  Its external interrupt field was moved
into struct gpio_dev, which saves memory by storing an afio_exti_port
per port, rather than one per pin.  Also rearranged the stm32_pin_info
fields to improve packing.  Maple's PIN_MAP is now down to below 500
bytes.
---
 libmaple/gpio.c | 35 +++++++++++++++++++++--------------
 1 file changed, 21 insertions(+), 14 deletions(-)

(limited to 'libmaple/gpio.c')

diff --git a/libmaple/gpio.c b/libmaple/gpio.c
index 18b856b..5484e21 100644
--- a/libmaple/gpio.c
+++ b/libmaple/gpio.c
@@ -34,45 +34,52 @@
  */
 
 gpio_dev gpioa = {
-    .regs   = GPIOA_BASE,
-    .clk_id = RCC_GPIOA
+    .regs      = GPIOA_BASE,
+    .clk_id    = RCC_GPIOA,
+    .exti_port = AFIO_EXTI_PA,
 };
 gpio_dev* const GPIOA = &gpioa;
 
 gpio_dev gpiob = {
-    .regs   = GPIOB_BASE,
-    .clk_id = RCC_GPIOB
+    .regs      = GPIOB_BASE,
+    .clk_id    = RCC_GPIOB,
+    .exti_port = AFIO_EXTI_PB,
 };
 gpio_dev* const GPIOB = &gpiob;
 
 gpio_dev gpioc = {
-    .regs   = GPIOC_BASE,
-    .clk_id = RCC_GPIOC
+    .regs      = GPIOC_BASE,
+    .clk_id    = RCC_GPIOC,
+    .exti_port = AFIO_EXTI_PC,
 };
 gpio_dev* const GPIOC = &gpioc;
 
 gpio_dev gpiod = {
-    .regs   = GPIOD_BASE,
-    .clk_id = RCC_GPIOD
+    .regs      = GPIOD_BASE,
+    .clk_id    = RCC_GPIOD,
+    .exti_port = AFIO_EXTI_PD,
 };
 gpio_dev* const GPIOD = &gpiod;
 
 #ifdef STM32_HIGH_DENSITY
 gpio_dev gpioe = {
-    .regs   = GPIOE_BASE,
-    .clk_id = RCC_GPIOE
+    .regs      = GPIOE_BASE,
+    .clk_id    = RCC_GPIOE,
+    .exti_port = AFIO_EXTI_PE,
 };
 gpio_dev* const GPIOE = &gpioe;
 
 gpio_dev gpiof = {
-    .regs   = GPIOF_BASE,
-    .clk_id = RCC_GPIOF
+    .regs      = GPIOF_BASE,
+    .clk_id    = RCC_GPIOF,
+    .exti_port = AFIO_EXTI_PF,
 };
 gpio_dev* const GPIOF = &gpiof;
 
 gpio_dev gpiog = {
-    .regs   = GPIOG_BASE,
-    .clk_id = RCC_GPIOG
+    .regs      = GPIOG_BASE,
+    .clk_id    = RCC_GPIOG,
+    .exti_port = AFIO_EXTI_PG,
 };
 gpio_dev* const GPIOG = &gpiog;
 #endif
-- 
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