STM32F2: Add timer support.

Standard series peripheral support patch, containing STM32F2 series
timer.h and timer.c.

Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>

1 files changed, 185 insertions, 0 deletions

diff --git a/libmaple/stm32f2/timer.c b/libmaple/stm32f2/timer.c
new file mode 100644
index 0000000..eed7810
--- /dev/null
+++ b/libmaple/stm32f2/timer.c
@@ -0,0 +1,185 @@
+/******************************************************************************
+ * The MIT License
+ *
+ * Copyright (c) 2012 LeafLabs, LLC.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *****************************************************************************/
+
+/**
+ * @file   libmaple/stm32f2/timer.c
+ * @author Marti Bolivar <mbolivar@leaflabs.com>
+ * @brief  STM32F2 timer support.
+ */
+
+#include <libmaple/timer.h>
+#include "timer_private.h"
+
+/*
+ * Devices
+ *
+ * Defer to the timer_private API for declaring these.
+ */
+
+static DECLARE_ADVANCED_TIMER(timer1, 1);
+static DECLARE_GENERAL_TIMER(timer2, 2);
+static DECLARE_GENERAL_TIMER(timer3, 3);
+static DECLARE_GENERAL_TIMER(timer4, 4);
+static DECLARE_GENERAL_TIMER(timer5, 5);
+static DECLARE_BASIC_TIMER(timer6, 6);
+static DECLARE_BASIC_TIMER(timer7, 7);
+static DECLARE_ADVANCED_TIMER(timer8, 8);
+/* TIM9 has UIE, CC1IE, CC2IE, TIE bits in DIER. */
+static DECLARE_RESTRICTED_GENERAL_TIMER(timer9, 9, TIMER_DIER_TIE_BIT);
+/* TIM10 has UIE, CC1IE. */
+static DECLARE_RESTRICTED_GENERAL_TIMER(timer10, 10, TIMER_DIER_CC1IE_BIT);
+/* TIM11 has UIE, CC1IE. */
+static DECLARE_RESTRICTED_GENERAL_TIMER(timer11, 11, TIMER_DIER_CC1IE_BIT);
+/* TIM12 has UIE, CC1IE, CC2IE, TIE. */
+static DECLARE_RESTRICTED_GENERAL_TIMER(timer12, 12, TIMER_DIER_TIE_BIT);
+/* TIM13 has UIE, CC1IE. */
+static DECLARE_RESTRICTED_GENERAL_TIMER(timer13, 13, TIMER_DIER_CC1IE_BIT);
+/* TIM14 has UIE, CC1IE. */
+static DECLARE_RESTRICTED_GENERAL_TIMER(timer14, 14, TIMER_DIER_CC1IE_BIT);
+
+/** Timer 1 device (advanced) */
+timer_dev *TIMER1 = &timer1;
+/** Timer 2 device (general-purpose) */
+timer_dev *TIMER2 = &timer2;
+/** Timer 3 device (general-purpose) */
+timer_dev *TIMER3 = &timer3;
+/** Timer 4 device (general-purpose) */
+timer_dev *TIMER4 = &timer4;
+/** Timer 5 device (general-purpose) */
+timer_dev *TIMER5 = &timer5;
+/** Timer 6 device (basic) */
+timer_dev *TIMER6 = &timer6;
+/** Timer 7 device (basic) */
+timer_dev *TIMER7 = &timer7;
+/** Timer 8 device (advanced) */
+timer_dev *TIMER8 = &timer8;
+/** Timer 9 device (general-purpose) */
+timer_dev *TIMER9 = &timer9;
+/** Timer 10 device (general-purpose) */
+timer_dev *TIMER10 = &timer10;
+/** Timer 11 device (general-purpose) */
+timer_dev *TIMER11 = &timer11;
+/** Timer 12 device (general-purpose) */
+timer_dev *TIMER12 = &timer12;
+/** Timer 13 device (general-purpose) */
+timer_dev *TIMER13 = &timer13;
+/** Timer 14 device (general-purpose) */
+timer_dev *TIMER14 = &timer14;
+
+/*
+ * Routines
+ */
+
+/**
+ * @brief Call a function on timer devices.
+ * @param fn Function to call on each timer device.
+ */
+void timer_foreach(void (*fn)(timer_dev*)) {
+    fn(TIMER1);
+    fn(TIMER2);
+    fn(TIMER3);
+    fn(TIMER4);
+    fn(TIMER5);
+    fn(TIMER6);
+    fn(TIMER7);
+    fn(TIMER8);
+    fn(TIMER9);
+    fn(TIMER10);
+    fn(TIMER11);
+    fn(TIMER12);
+    fn(TIMER13);
+    fn(TIMER14);
+}
+
+/*
+ * IRQ handlers
+ *
+ * Defer to the timer_private dispatch API.
+ */
+
+void __irq_tim1_brk_tim9(void) {
+    dispatch_adv_brk(TIMER1);
+    dispatch_tim_9_12(TIMER9);
+}
+
+void __irq_tim1_up_tim10(void) {
+    dispatch_adv_up(TIMER1);
+    dispatch_tim_10_11_13_14(TIMER10);
+}
+
+void __irq_tim1_trg_com_tim11(void) {
+    dispatch_adv_trg_com(TIMER1);
+    dispatch_tim_10_11_13_14(TIMER11);
+}
+
+void __irq_tim1_cc(void) {
+    dispatch_adv_cc(TIMER1);
+}
+
+void __irq_tim2(void) {
+    dispatch_general(TIMER2);
+}
+
+void __irq_tim3(void) {
+    dispatch_general(TIMER3);
+}
+
+void __irq_tim4(void) {
+    dispatch_general(TIMER4);
+}
+
+void __irq_tim5(void) {
+    dispatch_general(TIMER5);
+}
+
+/* FIXME: this is also the DAC DMA underrun interrupt, so it needs a
+ * different name (and to be supported?). */
+void __irq_tim6(void) {
+    dispatch_basic(TIMER6);
+}
+
+void __irq_tim7(void) {
+    dispatch_basic(TIMER7);
+}
+
+void __irq_tim8_brk_tim12(void) {
+    dispatch_adv_brk(TIMER8);
+    dispatch_tim_9_12(TIMER12);
+}
+
+void __irq_tim8_up_tim13(void) {
+    dispatch_adv_up(TIMER8);
+    dispatch_tim_10_11_13_14(TIMER13);
+}
+
+void __irq_tim8_trg_com_tim14(void) {
+    dispatch_adv_trg_com(TIMER8);
+    dispatch_tim_10_11_13_14(TIMER14);
+}
+
+void __irq_tim8_cc(void) {
+    dispatch_adv_cc(TIMER8);
+}