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*** EFM32 branch ***

Browse Source 
1. Upgrade EFM32 driver libraries (CMSIS and efm32lib) to version 2.3.0 (from version 2.2.2) 
2. Add EFM32GG-DK3750 development kit support (driver version 1.2.1) 
3. Add giant gecko (EFM32GG) support
4. Add LEUART module driver (max 9600bsp)

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1839 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
onelife.real
2011-12-16 01:05:50 +00:00
parent 44b3b3ad87
commit 3c3b3697ad
265 changed files with 4453 additions and 935 deletions
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78
bsp/efm32/drv_iic.c
View File

@@ -6,20 +6,20 @@
* @version 0.4 beta
*******************************************************************************
* @section License
* The license and distribution terms for this file may be found in the file
* The license and distribution terms for this file may be found in the file
* LICENSE in this distribution or at http://www.rt-thread.org/license/LICENSE
*******************************************************************************
* @section Change Logs
* Date Author Notes
* 2011-01-06 onelife Initial creation for EFM32
* 2011-06-17 onelife Modify init function for EFM32 library v2.0.0
* 2011-06-17 onelife Modify init function for EFM32 library v2.0.0
* upgrading
* 2011-07-11 onelife Add lock (semaphore) to prevent simultaneously
* 2011-07-11 onelife Add lock (semaphore) to prevent simultaneously
* access
* 2011-08-04 onelife Change the usage of the second parameter of Read
* 2011-08-04 onelife Change the usage of the second parameter of Read
* and Write functions from (seldom used) "Offset" to "Slave address"
* 2011-08-04 onelife Add a timer to prevent from forever waiting
* 2011-11-29 onelife Modify init function for EFM32 library v2.2.2
* 2011-11-29 onelife Modify init function for EFM32 library v2.2.2
* upgrading
******************************************************************************/
@@ -52,15 +52,15 @@ struct efm32_iic_block
/* Private variables ---------------------------------------------------------*/
#ifdef RT_USING_IIC0
#if (RT_USING_IIC0 > 3)
#error "The location number range of IIC is 0~3"
#if (RT_USING_IIC0 > EFM32_IIC_LOCATION_COUNT)
#error "Wrong location number"
#endif
static struct efm32_iic_block iic0;
#endif
#ifdef RT_USING_IIC1
#if (RT_USING_IIC1 > 3)
#error "The location number range of IIC is 0~3"
#if (RT_USING_IIC1 > EFM32_IIC_LOCATION_COUNT)
#error "Wrong location number"
#endif
static struct efm32_iic_block iic1;
#endif
@@ -122,7 +122,7 @@ static rt_err_t rt_iic_open(rt_device_t dev, rt_uint16_t oflag)
RT_ASSERT(dev != RT_NULL);
struct efm32_iic_device_t *iic;
iic = (struct efm32_iic_device_t *)(dev->user_data);
iic->counter++;
@@ -149,7 +149,7 @@ static rt_err_t rt_iic_close(rt_device_t dev)
RT_ASSERT(dev != RT_NULL);
struct efm32_iic_device_t *iic;
iic = (struct efm32_iic_device_t *)(dev->user_data);
if (--iic->counter == 0)
{
@@ -184,9 +184,9 @@ static rt_err_t rt_iic_close(rt_device_t dev)
* Error code
******************************************************************************/
static rt_size_t rt_iic_read (
rt_device_t dev,
rt_off_t pos,
void* buffer,
rt_device_t dev,
rt_off_t pos,
void* buffer,
rt_size_t size)
{
rt_err_t err_code;
@@ -238,7 +238,7 @@ static rt_size_t rt_iic_read (
{
ret = I2C_Transfer(iic->iic_device);
}
if (ret != i2cTransferDone)
{
iic_debug("IIC read error: %x\n", ret);
@@ -335,9 +335,9 @@ static rt_size_t rt_iic_read (
* Error code
******************************************************************************/
static rt_size_t rt_iic_write (
rt_device_t dev,
rt_off_t pos,
const void* buffer,
rt_device_t dev,
rt_off_t pos,
const void* buffer,
rt_size_t size)
{
rt_err_t err_code;
@@ -391,7 +391,7 @@ static rt_size_t rt_iic_write (
{
ret = I2C_Transfer(iic->iic_device);
}
if (ret != i2cTransferDone)
{
err_code = (rt_err_t)ret;
@@ -430,8 +430,8 @@ static rt_size_t rt_iic_write (
* Error code
******************************************************************************/
static rt_err_t rt_iic_control (
rt_device_t dev,
rt_uint8_t cmd,
rt_device_t dev,
rt_uint8_t cmd,
void *args)
{
RT_ASSERT(dev != RT_NULL);
@@ -502,7 +502,7 @@ static rt_err_t rt_iic_control (
iic->rx_buffer->read_index = 0;
iic->rx_buffer->save_index = 0;
}
/* Enable slave mode */
I2C_SlaveAddressSet(iic->iic_device, iic->address);
I2C_SlaveAddressMaskSet(iic->iic_device, 0xFF);
@@ -511,7 +511,7 @@ static rt_err_t rt_iic_control (
/* Enable interrupts */
I2C_IntEnable(iic->iic_device, I2C_IEN_ADDR | I2C_IEN_RXDATAV | I2C_IEN_SSTOP);
I2C_IntClear(iic->iic_device, _I2C_IFC_MASK);
/* Enable I2Cn interrupt vector in NVIC */
#ifdef RT_USING_IIC0
if (dev == &iic0.device)
@@ -574,20 +574,20 @@ static void rt_iic_timer(void *timeout)
* Configuration flags
*
* @param[in] iic
* Pointer to IIC device descriptor
* Pointer to IIC device descriptor
*
* @return
* Error code
******************************************************************************/
rt_err_t rt_hw_iic_register(
rt_device_t device,
const char *name,
rt_uint32_t flag,
rt_device_t device,
const char *name,
rt_uint32_t flag,
struct efm32_iic_device_t *iic)
{
RT_ASSERT(device != RT_NULL);
if ((flag & RT_DEVICE_FLAG_DMA_TX) || (flag & RT_DEVICE_FLAG_DMA_RX) ||
if ((flag & RT_DEVICE_FLAG_DMA_TX) || (flag & RT_DEVICE_FLAG_DMA_RX) ||
(flag & RT_DEVICE_FLAG_INT_TX))
{
RT_ASSERT(0);
@@ -635,20 +635,20 @@ static void rt_hw_iic_slave_isr(rt_device_t dev)
if (status & I2C_IF_ADDR)
{
/* Address Match */
/* Address Match */
/* Indicating that reception is started */
temp = iic->iic_device->RXDATA & 0xFFUL;
if ((temp != 0x00) || (iic->state & IIC_STATE_BROADCAST))
{
iic->state |= IIC_STATE_RX_BUSY;
}
}
}
else if (status & I2C_IF_RXDATAV)
{
if (iic->state & IIC_STATE_RX_BUSY)
{
rt_base_t level;
/* disable interrupt */
level = rt_hw_interrupt_disable();
@@ -687,7 +687,7 @@ static void rt_hw_iic_slave_isr(rt_device_t dev)
/***************************************************************************//**
* @brief
* Initialize the specified IIC unit
* Initialize the specified IIC unit
*
* @details
*
@@ -697,11 +697,11 @@ static void rt_hw_iic_slave_isr(rt_device_t dev)
* Unit number
*
* @param[in] location
* Pin location number
* Pin location number
******************************************************************************/
static struct efm32_iic_device_t *rt_hw_iic_unit_init(
struct efm32_iic_block *block,
rt_uint8_t unitNumber,
rt_uint8_t unitNumber,
rt_uint8_t location)
{
struct efm32_iic_device_t *iic;
@@ -737,7 +737,7 @@ static struct efm32_iic_device_t *rt_hw_iic_unit_init(
{
case 0:
iic->iic_device = I2C0;
iicClock = (CMU_Clock_TypeDef)cmuClock_I2C0;
iicClock = (CMU_Clock_TypeDef)cmuClock_I2C0;
port_scl = AF_I2C0_SCL_PORT(location);
pin_scl = AF_I2C0_SCL_PIN(location);
port_sda = AF_I2C0_SDA_PORT(location);
@@ -747,7 +747,7 @@ static struct efm32_iic_device_t *rt_hw_iic_unit_init(
#if (I2C_COUNT > 1)
case 1:
iic->iic_device = I2C1;
iicClock = (CMU_Clock_TypeDef)cmuClock_I2C1;
iicClock = (CMU_Clock_TypeDef)cmuClock_I2C1;
port_scl = AF_I2C1_SCL_PORT(location);
pin_scl = AF_I2C1_SCL_PIN(location);
port_sda = AF_I2C1_SDA_PORT(location);
@@ -761,7 +761,7 @@ static struct efm32_iic_device_t *rt_hw_iic_unit_init(
rt_sprintf(name, "iic%d", unitNumber);
/* Enabling clock */
CMU_ClockEnable(iicClock, true);
CMU_ClockEnable(iicClock, true);
/* Reset */
I2C_Reset(iic->iic_device);
@@ -803,7 +803,7 @@ static struct efm32_iic_device_t *rt_hw_iic_unit_init(
}
/* Initialize timer */
rt_timer_init(iic->timer, name, rt_iic_timer, &iic->timeout,
rt_timer_init(iic->timer, name, rt_iic_timer, &iic->timeout,
IIC_TIMEOUT_PERIOD, RT_TIMER_FLAG_ONE_SHOT);
return iic;
@@ -813,7 +813,7 @@ static struct efm32_iic_device_t *rt_hw_iic_unit_init(
{
rt_free(iic);
}
iic_debug("IIC: Unit %d init failed!\n", unitNumber);
return RT_NULL;
}