stm32f2xx_timer: Add the stm32f2xx Timer

This patch adds the stm32f2xx timers: TIM2, TIM3, TIM4 and TIM5
to QEMU.

Signed-off-by: Alistair Francis <alistair@alistair23.me>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 155091a323390f8da3cca496e4c611c493e62a77.1424175342.git.alistair@alistair23.me
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 101 insertions, 0 deletions

diff --git a/include/hw/timer/stm32f2xx_timer.h b/include/hw/timer/stm32f2xx_timer.h
new file mode 100644
index 0000000..e6a8323
--- /dev/null
+++ b/include/hw/timer/stm32f2xx_timer.h
@@ -0,0 +1,101 @@
+/*
+ * STM32F2XX Timer
+ *
+ * Copyright (c) 2014 Alistair Francis <alistair@alistair23.me>
+ *
+ * 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.
+ */
+
+#ifndef HW_STM32F2XX_TIMER_H
+#define HW_STM32F2XX_TIMER_H
+
+#include "hw/sysbus.h"
+#include "qemu/timer.h"
+#include "sysemu/sysemu.h"
+
+#define TIM_CR1      0x00
+#define TIM_CR2      0x04
+#define TIM_SMCR     0x08
+#define TIM_DIER     0x0C
+#define TIM_SR       0x10
+#define TIM_EGR      0x14
+#define TIM_CCMR1    0x18
+#define TIM_CCMR2    0x1C
+#define TIM_CCER     0x20
+#define TIM_CNT      0x24
+#define TIM_PSC      0x28
+#define TIM_ARR      0x2C
+#define TIM_CCR1     0x34
+#define TIM_CCR2     0x38
+#define TIM_CCR3     0x3C
+#define TIM_CCR4     0x40
+#define TIM_DCR      0x48
+#define TIM_DMAR     0x4C
+#define TIM_OR       0x50
+
+#define TIM_CR1_CEN   1
+
+#define TIM_EGR_UG 1
+
+#define TIM_CCER_CC2E   (1 << 4)
+#define TIM_CCMR1_OC2M2 (1 << 14)
+#define TIM_CCMR1_OC2M1 (1 << 13)
+#define TIM_CCMR1_OC2M0 (1 << 12)
+#define TIM_CCMR1_OC2PE (1 << 11)
+
+#define TIM_DIER_UIE  1
+
+#define TYPE_STM32F2XX_TIMER "stm32f2xx-timer"
+#define STM32F2XXTIMER(obj) OBJECT_CHECK(STM32F2XXTimerState, \
+                            (obj), TYPE_STM32F2XX_TIMER)
+
+typedef struct STM32F2XXTimerState {
+    /* <private> */
+    SysBusDevice parent_obj;
+
+    /* <public> */
+    MemoryRegion iomem;
+    QEMUTimer *timer;
+    qemu_irq irq;
+
+    int64_t tick_offset;
+    uint64_t hit_time;
+    uint64_t freq_hz;
+
+    uint32_t tim_cr1;
+    uint32_t tim_cr2;
+    uint32_t tim_smcr;
+    uint32_t tim_dier;
+    uint32_t tim_sr;
+    uint32_t tim_egr;
+    uint32_t tim_ccmr1;
+    uint32_t tim_ccmr2;
+    uint32_t tim_ccer;
+    uint32_t tim_psc;
+    uint32_t tim_arr;
+    uint32_t tim_ccr1;
+    uint32_t tim_ccr2;
+    uint32_t tim_ccr3;
+    uint32_t tim_ccr4;
+    uint32_t tim_dcr;
+    uint32_t tim_dmar;
+    uint32_t tim_or;
+} STM32F2XXTimerState;
+
+#endif /* HW_STM32F2XX_TIMER_H */