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Merge pull request #10874 from ganesh-ramachandran/m3h6_newfeatures 

Add new features to Toshiba's TMPM3H6
pull/10976/head
Martin Kojtal 2019-07-05 13:06:03 +01:00 committed by GitHub
parent 4b7fd707f1 61ad427a35
commit e08b7137a6
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 882 additions and 75 deletions
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3
targets/TARGET_TOSHIBA/TARGET_TMPM3H6/device.h
View File

@ -16,7 +16,8 @@
#ifndef MBED_DEVICE_H
#define MBED_DEVICE_H
#define DEVICE_ID_LENGTH 32
#define DEVICE_ID_LENGTH 32
#define TRANSACTION_QUEUE_SIZE_SPI 4
#include "objects.h"

369
targets/TARGET_TOSHIBA/TARGET_TMPM3H6/i2c_api.c
View File

@ -21,6 +21,12 @@
#include "pinmap.h"
#include "gpio_include.h"
#if DEVICE_I2C_ASYNCH
#define I2C_S(obj) (struct i2c_s *) (&((obj)->i2c))
#else
#define I2C_S(obj) (struct i2c_s *) (obj)
#endif
static const PinMap PinMap_I2C_SDA[] = {
{PC1, I2C_0, PIN_DATA(1, 2)},
{PA5, I2C_1, PIN_DATA(1, 2)},
@ -49,40 +55,84 @@ static const uint32_t I2C_SCK_DIVIDER_TBL[8] = {
I2C_clock_setting_t clk;
static uint32_t start_flag = 0;
#if DEVICE_I2C_ASYNCH
enum {
I2C_TRANSFER_STATE_IDLE = 0U,
I2C_TRANSFER_STATE_START,
I2C_TRANSFER_STATE_WRITE,
I2C_TRANSFER_STATE_RESTART,
I2C_TRANSFER_STATE_READ,
I2C_TRANSFER_STATE_MAX
} TransferState;
typedef struct {
IRQn_Type i2c;
} i2c_irq_t;
static const i2c_irq_t I2C_CH0_IRQN_TBL[1] = {
{INTI2C0_IRQn}
};
static const i2c_irq_t I2C_CH1_IRQN_TBL[1] = {
{INTI2C1_IRQn}
};
static const i2c_irq_t I2C_CH2_IRQN_TBL[1] = {
{INTI2C2_IRQn}
};
#endif
static int32_t wait_status(i2c_t *p_obj);
static void i2c_start_bit(i2c_t *obj);
#if DEVICE_I2C_ASYNCH
static void disable_irq(uint32_t irqn);
static void clear_irq(uint32_t irqn);
static void i2c_irq_handler(i2c_t *obj);
#endif
// Initialize the I2C peripheral. It sets the default parameters for I2C
void i2c_init(i2c_t *obj, PinName sda, PinName scl)
{
MBED_ASSERT(obj != NULL);
struct i2c_s *obj_s = I2C_S(obj);
MBED_ASSERT(obj_s != NULL);
I2CName i2c_sda = (I2CName)pinmap_peripheral(sda, PinMap_I2C_SDA);
I2CName i2c_scl = (I2CName)pinmap_peripheral(scl, PinMap_I2C_SCL);
I2CName i2c_name = (I2CName)pinmap_merge(i2c_sda, i2c_scl);
MBED_ASSERT((int)i2c_name != NC);
switch (i2c_name) {
case I2C_0:
TSB_CG_FSYSENA_IPENA20 = ENABLE;
TSB_CG_FSYSENA_IPENA02 = ENABLE;
obj->i2c = TSB_I2C0;
obj_s->i2c = TSB_I2C0;
#if DEVICE_I2C_ASYNCH
obj_s->irqn = (uint32_t)&I2C_CH0_IRQN_TBL;
#endif
break;
case I2C_1:
TSB_CG_FSYSENA_IPENA21 = ENABLE;
TSB_CG_FSYSENA_IPENA00 = ENABLE;
obj->i2c = TSB_I2C1;
obj_s->i2c = TSB_I2C1;
#if DEVICE_I2C_ASYNCH
obj_s->irqn = (uint32_t)&I2C_CH1_IRQN_TBL;
#endif
break;
case I2C_2:
TSB_CG_FSYSENA_IPENA22 = ENABLE;
TSB_CG_FSYSENA_IPENA10 = ENABLE;
obj->i2c = TSB_I2C2;
obj_s->i2c = TSB_I2C2;
#if DEVICE_I2C_ASYNCH
obj_s->irqn = (uint32_t)&I2C_CH2_IRQN_TBL;
#endif
break;
default:
error("I2C is not available");
break;
}
#if DEVICE_I2C_ASYNCH
obj_s->state = I2C_TRANSFER_STATE_IDLE;
#endif
pinmap_pinout(sda, PinMap_I2C_SDA);
pin_mode(sda, OpenDrain);
@ -94,15 +144,16 @@ void i2c_init(i2c_t *obj, PinName sda, PinName scl)
i2c_reset(obj);
i2c_frequency(obj, 100000);
obj->i2c->CR2 = (I2CxCR2_I2CM_ENABLE | I2CxCR2_TRX | I2CxCR2_PIN_CLEAR |
I2CxCR2_INIT);
obj->i2c->OP = I2CxOP_INIT;
obj->i2c->IE = I2CxIE_CLEAR;
obj_s->i2c->CR2 = (I2CxCR2_I2CM_ENABLE | I2CxCR2_TRX | I2CxCR2_PIN_CLEAR |
I2CxCR2_INIT);
obj_s->i2c->OP = I2CxOP_INIT;
obj_s->i2c->IE = I2CxIE_CLEAR;
}
// Configure the I2C frequency
void i2c_frequency(i2c_t *obj, int hz)
{
struct i2c_s *obj_s = I2C_S(obj);
uint64_t sck;
uint64_t tmp_sck;
uint64_t prsck;
@ -134,8 +185,8 @@ void i2c_frequency(i2c_t *obj, int hz)
clk.prsck = (tmp_prsck < 32) ? (uint32_t)(tmp_prsck - 1) : 0;
}
obj->i2c->CR1 = (I2CxCR1_ACK | clk.sck);
obj->i2c->PRS = (I2CxPRS_PRCK & clk.prsck);
obj_s->i2c->CR1 = (I2CxCR1_ACK | clk.sck);
obj_s->i2c->PRS = (I2CxPRS_PRCK & clk.prsck);
}
int i2c_start(i2c_t *obj)
@ -146,11 +197,12 @@ int i2c_start(i2c_t *obj)
int i2c_stop(i2c_t *obj)
{
struct i2c_s *obj_s = I2C_S(obj);
uint32_t timeout = I2C_TIMEOUT;
obj->i2c->CR2 = I2CxCR2_STOP_CONDITION;
obj_s->i2c->CR2 = I2CxCR2_STOP_CONDITION;
while ((obj->i2c->SR & I2CxSR_BB) == I2CxSR_BB) {
while ((obj_s->i2c->SR & I2CxSR_BB) == I2CxSR_BB) {
if (timeout == 0) {
break;
}
@ -162,8 +214,9 @@ int i2c_stop(i2c_t *obj)
void i2c_reset(i2c_t *obj)
{
obj->i2c->CR2 = I2CxCR2_SWRES_10;
obj->i2c->CR2 = I2CxCR2_SWRES_01;
struct i2c_s *obj_s = I2C_S(obj);
obj_s->i2c->CR2 = I2CxCR2_SWRES_10;
obj_s->i2c->CR2 = I2CxCR2_SWRES_01;
}
int i2c_read(i2c_t *obj, int address, char *data, int length, int stop)
@ -224,22 +277,23 @@ int i2c_write(i2c_t *obj, int address, const char *data, int length, int stop)
int i2c_byte_read(i2c_t *obj, int last)
{
struct i2c_s *obj_s = I2C_S(obj);
int32_t result = 0;
obj->i2c->ST = I2CxST_CLEAR;
obj_s->i2c->ST = I2CxST_CLEAR;
if (last) {
obj->i2c->OP |= I2CxOP_MFACK;
obj_s->i2c->OP |= I2CxOP_MFACK;
} else {
obj->i2c->OP &= ~I2CxOP_MFACK;
obj_s->i2c->OP &= ~I2CxOP_MFACK;
}
obj->i2c->DBR = (0 & I2CxDBR_DB_MASK);
obj_s->i2c->DBR = (0 & I2CxDBR_DB_MASK);
if (wait_status(obj) < 0) {
result = -1;
} else {
result = (int32_t)(obj->i2c->DBR & I2CxDBR_DB_MASK);
result = (int32_t)(obj_s->i2c->DBR & I2CxDBR_DB_MASK);
}
return result;
@ -247,22 +301,23 @@ int i2c_byte_read(i2c_t *obj, int last)
int i2c_byte_write(i2c_t *obj, int data)
{
struct i2c_s *obj_s = I2C_S(obj);
int32_t result = 0;
obj->i2c->ST = I2CxST_CLEAR;
obj_s->i2c->ST = I2CxST_CLEAR;
if (start_flag == 1) {
obj->i2c->DBR = (data & I2CxDBR_DB_MASK);
obj_s->i2c->DBR = (data & I2CxDBR_DB_MASK);
i2c_start_bit(obj);
start_flag = 0;
} else {
obj->i2c->DBR = (data & I2CxDBR_DB_MASK);
obj_s->i2c->DBR = (data & I2CxDBR_DB_MASK);
}
if (wait_status(obj) < 0) {
return -1;
}
if (!((obj->i2c->SR & I2CxSR_LRB) == I2CxSR_LRB)) {
if (!((obj_s->i2c->SR & I2CxSR_LRB) == I2CxSR_LRB)) {
result = 1;
} else {
result = 0;
@ -273,25 +328,27 @@ int i2c_byte_write(i2c_t *obj, int data)
static void i2c_start_bit(i2c_t *obj) // Send START command
{
struct i2c_s *obj_s = I2C_S(obj);
uint32_t opreg = 0;
opreg = obj->i2c->OP;
opreg = obj_s->i2c->OP;
opreg &= ~(I2CxOP_RSTA | I2CxOP_SREN);
if ((obj->i2c->SR & I2CxSR_BB)) {
if ((obj_s->i2c->SR & I2CxSR_BB)) {
opreg |= I2CxOP_SREN;
}
obj->i2c->OP = opreg;
obj->i2c->CR2 |= I2CxCR2_START_CONDITION;
obj_s->i2c->OP = opreg;
obj_s->i2c->CR2 |= I2CxCR2_START_CONDITION;
}
static int32_t wait_status(i2c_t *p_obj)
{
struct i2c_s *obj_s = I2C_S(p_obj);
volatile int32_t timeout;
timeout = I2C_TIMEOUT;
while (!((p_obj->i2c->ST & I2CxST_I2C) == I2CxST_I2C)) {
while (!((obj_s->i2c->ST & I2CxST_I2C) == I2CxST_I2C)) {
if ((timeout--) == 0) {
return (-1);
}
@ -302,32 +359,38 @@ static int32_t wait_status(i2c_t *p_obj)
void i2c_slave_mode(i2c_t *obj, int enable_slave)
{
struct i2c_s *obj_s = I2C_S(obj);
if (enable_slave) {
obj->i2c->OP = I2CxOP_SLAVE_INIT;
obj->i2c->CR1 = (I2CxCR1_ACK | clk.sck);
obj->i2c->CR2 = (I2CxCR2_INIT | I2CxCR2_PIN_CLEAR);
obj->i2c->PRS = (I2CxPRS_PRCK & clk.prsck);
obj->i2c->AR = (obj->address & I2CAR_SA_MASK);
obj->i2c->IE = I2CxIE_INTI2C;
i2c_reset(obj);
obj_s->i2c->OP = I2CxOP_SLAVE_INIT;
obj_s->i2c->CR1 = (I2CxCR1_ACK | clk.sck);
obj_s->i2c->CR2 = (I2CxCR2_INIT | I2CxCR2_PIN_CLEAR);
obj_s->i2c->CR2 = I2CxCR2_INIT;
obj_s->i2c->PRS = (I2CxPRS_PRCK & clk.prsck);
obj_s->i2c->AR = (obj_s->address & I2CAR_SA_MASK);
obj_s->i2c->IE = I2CxIE_INTI2C;
} else {
i2c_reset(obj);
obj->i2c->CR2 = (I2CxCR2_I2CM_ENABLE | I2CxCR2_TRX | I2CxCR2_PIN_CLEAR |
I2CxCR2_INIT);
obj->i2c->OP = I2CxOP_INIT;
obj->i2c->CR1 = (I2CxCR1_ACK | clk.sck);
obj->i2c->PRS = (I2CxPRS_PRCK & clk.prsck);
NVIC_DisableIRQ(obj->IRQn);
NVIC_ClearPendingIRQ(obj->IRQn);
obj->i2c->ST = I2CxST_CLEAR;
obj_s->i2c->CR2 = (I2CxCR2_I2CM_ENABLE | I2CxCR2_TRX | I2CxCR2_PIN_CLEAR |
I2CxCR2_INIT);
obj_s->i2c->OP = I2CxOP_INIT;
obj_s->i2c->CR1 = (I2CxCR1_ACK | clk.sck);
obj_s->i2c->PRS = (I2CxPRS_PRCK & clk.prsck);
obj_s->i2c->ST = I2CxST_CLEAR;
}
}
int i2c_slave_receive(i2c_t *obj)
{
struct i2c_s *obj_s = I2C_S(obj);
int32_t result = I2C_NO_DATA;
if ((obj->i2c->ST & I2CxST_I2C) && (obj->i2c->OP & I2CxOP_SAST)) {
if ((obj->i2c->SR & I2CxSR_TRX) == I2CxSR_TRX) {
if ((obj_s->i2c->ST & I2CxST_I2C) && (obj_s->i2c->OP & I2CxOP_SAST)) {
// Detect and clear arbitration lost.
if(!(obj_s->i2c->SR & 0x08)) {
obj_s->i2c->DBR = 0x00;
}
if ((obj_s->i2c->SR & I2CxSR_TRX) == I2CxSR_TRX) {
result = I2C_READ_ADDRESSED;
} else {
result = I2C_WRITE_ADDRESSED;
@ -339,11 +402,12 @@ int i2c_slave_receive(i2c_t *obj)
int i2c_slave_read(i2c_t *obj, char *data, int length)
{
struct i2c_s *obj_s = I2C_S(obj);
int32_t count = 0;
while (count < length) {
int32_t pdata = i2c_byte_read(obj, ((count < (length - 1)) ? 0 : 1));
if ((obj->i2c->SR & I2CxSR_TRX)) {
int32_t pdata = i2c_byte_read(obj, 0);
if ((obj_s->i2c->SR & I2CxSR_TRX)) {
return (count);
} else {
if (pdata < 0) {
@ -375,7 +439,8 @@ int i2c_slave_write(i2c_t *obj, const char *data, int length)
void i2c_slave_address(i2c_t *obj, int idx, uint32_t address, uint32_t mask)
{
obj->address = address & I2CAR_SA_MASK;
struct i2c_s *obj_s = I2C_S(obj);
obj_s->address = address & I2CAR_SA_MASK;
i2c_slave_mode(obj,1);
}
@ -399,4 +464,210 @@ const PinMap *i2c_slave_scl_pinmap()
return PinMap_I2C_SCL;
}
#if DEVICE_I2C_ASYNCH
void i2c_transfer_asynch(i2c_t *obj, const void *tx, size_t tx_length, void *rx, size_t rx_length, uint32_t address,
uint32_t stop, uint32_t handler, uint32_t event, DMAUsage hint)
{
struct i2c_s *obj_s = I2C_S(obj);
i2c_irq_t *p_irqn = (i2c_irq_t *)obj_s->irqn;
if(obj_s->state == I2C_TRANSFER_STATE_IDLE) {
// Disable and clear interrupt flag.
disable_irq(obj_s->irqn);
obj_s->i2c->IE = I2CxIE_CLEAR;
obj_s->i2c->ST = I2CxST_CLEAR;
clear_irq(obj_s->irqn);
// Store given buffer data and lenght into I2C object and set state as I2C_TRANSFER_STATE_START.
obj_s->address = address;
obj_s->event = 0;
obj_s->stop = stop;
obj->tx_buff.buffer = (void *)tx;
obj->tx_buff.length = tx_length;
obj->tx_buff.pos = 0;
obj->rx_buff.buffer = rx;
obj->rx_buff.length = rx_length;
obj->rx_buff.pos = 0;
obj_s->state = I2C_TRANSFER_STATE_START;
// Enable I2C interrupt.
obj_s->i2c->IE = I2CxIE_INTI2C;
if ((tx_length == 0) && (rx_length != 0)) {
i2c_start_bit(obj);
obj_s->i2c->DBR = ((address | 1U) & I2CxDBR_DB_MASK);
} else {
i2c_start_bit(obj);
obj_s->i2c->DBR = (address & I2CxDBR_DB_MASK);
}
// Enable I2C interrupr in NVIC.
NVIC_EnableIRQ(p_irqn->i2c);
NVIC_SetVector(p_irqn->i2c, handler);
}
}
uint32_t i2c_irq_handler_asynch(i2c_t *obj)
{
struct i2c_s *obj_s = I2C_S(obj);
i2c_irq_handler(obj);
return (obj_s->event & I2C_EVENT_ALL);
}
uint8_t i2c_active(i2c_t *obj)
{
struct i2c_s *obj_s = I2C_S(obj);
uint8_t ret_val = 0;
if ((obj_s->i2c->CR2 & 0x08)) {
ret_val = 1;
}
return ret_val;
}
void i2c_abort_asynch(i2c_t *obj)
{
struct i2c_s *obj_s = I2C_S(obj);
// Generate Stop condition on I2C bus
i2c_stop(obj);
// Set state as idle and disable I2C interrupt.
obj_s->state = I2C_TRANSFER_STATE_IDLE;
disable_irq(obj_s->irqn);
clear_irq(obj_s->irqn);
obj_s->i2c->IE = I2CxIE_CLEAR;
// Given I2C Software Reset
i2c_reset(obj);
// Re-Store the I2C configuration
obj_s->i2c->CR2 = (I2CxCR2_I2CM_ENABLE | I2CxCR2_TRX | I2CxCR2_PIN_CLEAR | I2CxCR2_INIT);
obj_s->i2c->OP = I2CxOP_INIT;
obj_s->i2c->CR1 = (I2CxCR1_ACK | clk.sck);
obj_s->i2c->PRS = (I2CxPRS_PRCK & clk.prsck);
obj_s->i2c->ST = I2CxST_CLEAR;
}
static void disable_irq(uint32_t irqn)
{
i2c_irq_t *p_irqn = (i2c_irq_t *)irqn;
NVIC_DisableIRQ(p_irqn->i2c);
}
static void clear_irq(uint32_t irqn)
{
i2c_irq_t *p_irqn = (i2c_irq_t *)irqn;
NVIC_ClearPendingIRQ(p_irqn->i2c);
}
static void i2c_irq_handler(i2c_t *obj)
{
struct i2c_s *obj_s = I2C_S(obj);
obj_s->i2c->ST = I2CxST_CLEAR;
switch(obj_s->state) {
case I2C_TRANSFER_STATE_START:
// Check ACK for sent slave address.
if (!((obj_s->i2c->SR & I2CxSR_LRB) == I2CxSR_LRB)) {
if(obj->tx_buff.length != (unsigned long)0) { // Check Tx buff length.
obj_s->i2c->DBR = *((uint8_t *)obj->tx_buff.buffer)& I2CxDBR_DB_MASK;
obj->tx_buff.buffer = (uint8_t *)obj->tx_buff.buffer + sizeof(uint8_t);
obj->tx_buff.pos++;
obj_s->state = I2C_TRANSFER_STATE_WRITE;
} else if(obj->rx_buff.length != 0) { // Check Rx buff length.
if ((obj->rx_buff.pos < (obj->rx_buff.length - 1))) {
obj_s->i2c->OP &= ~I2CxOP_MFACK;
} else {
obj_s->i2c->OP |= I2CxOP_MFACK;
}
obj_s->i2c->DBR = 0x00;
obj_s->state = I2C_TRANSFER_STATE_READ;
} else { // Return transfer complete because of not given any Tx/Rx data.
obj_s->event = I2C_EVENT_TRANSFER_COMPLETE;
obj_s->state = I2C_TRANSFER_STATE_IDLE;
}
} else { // Return "No Slave", Because of Did not get any ACK for sent slave address.
obj_s->event = (I2C_EVENT_ERROR | I2C_EVENT_ERROR_NO_SLAVE);
obj_s->state = I2C_TRANSFER_STATE_IDLE;
}
break;
case I2C_TRANSFER_STATE_WRITE:
if(obj->tx_buff.pos < obj->tx_buff.length) {
if (!((obj_s->i2c->SR & I2CxSR_LRB) == I2CxSR_LRB)) {
obj_s->i2c->DBR = *((uint8_t *)obj->tx_buff.buffer)& I2CxDBR_DB_MASK;
obj->tx_buff.buffer = (uint8_t *)obj->tx_buff.buffer + sizeof(uint8_t);
obj->tx_buff.pos++;
} else {
obj_s->event = (I2C_EVENT_ERROR | I2C_EVENT_TRANSFER_EARLY_NACK);
obj_s->state = I2C_TRANSFER_STATE_IDLE;
}
} else if(obj->rx_buff.length != 0) {
if (!((obj_s->i2c->SR & I2CxSR_LRB) == I2CxSR_LRB)) {
i2c_start_bit(obj);
obj_s->i2c->DBR = ((obj_s->address | 1U) & I2CxDBR_DB_MASK);
obj_s->state = I2C_TRANSFER_STATE_RESTART;
} else {
obj_s->event = (I2C_EVENT_ERROR | I2C_EVENT_TRANSFER_EARLY_NACK);
obj_s->state = I2C_TRANSFER_STATE_IDLE;
}
} else {
if(obj_s->stop) {
obj_s->i2c->CR2 = I2CxCR2_STOP_CONDITION;
}
obj_s->event = I2C_EVENT_TRANSFER_COMPLETE;
obj_s->state = I2C_TRANSFER_STATE_IDLE;
}
break;
case I2C_TRANSFER_STATE_RESTART:
if(!((obj_s->i2c->SR & I2CxSR_LRB) == I2CxSR_LRB)) {
// Set ACK/NACK
if ((obj->rx_buff.pos < (obj->rx_buff.length - 1))) {
obj_s->i2c->OP &= ~I2CxOP_MFACK;
} else {
obj_s->i2c->OP |= I2CxOP_MFACK;
}
obj_s->i2c->DBR = 0x00;
obj_s->state = I2C_TRANSFER_STATE_READ;
} else {
obj_s->event = (I2C_EVENT_ERROR | I2C_EVENT_TRANSFER_EARLY_NACK);
obj_s->state = I2C_TRANSFER_STATE_IDLE;
}
break;
case I2C_TRANSFER_STATE_READ:
if(obj->rx_buff.pos < obj->rx_buff.length) {
*((uint8_t *)obj->rx_buff.buffer) = (uint8_t)obj_s->i2c->DBR & I2CxDBR_DB_MASK;
obj->rx_buff.buffer = (uint8_t *)obj->rx_buff.buffer + sizeof(uint8_t);
obj->rx_buff.pos++;
}
if(obj->rx_buff.pos < obj->rx_buff.length) {
// Set ACK/NACK
if ((obj->rx_buff.pos < (obj->rx_buff.length - 1))) {
obj_s->i2c->OP &= ~I2CxOP_MFACK;
} else {
obj_s->i2c->OP |= I2CxOP_MFACK;
}
obj_s->i2c->DBR = 0x00;
} else {
if(obj_s->stop) {
obj_s->i2c->CR2 = I2CxCR2_STOP_CONDITION;
}
obj_s->event = I2C_EVENT_TRANSFER_COMPLETE;
obj_s->state = I2C_TRANSFER_STATE_IDLE;
}
break;
default:
break;
}
if(obj_s->state == I2C_TRANSFER_STATE_IDLE) {
disable_irq(obj_s->irqn);
obj_s->i2c->IE = I2CxIE_CLEAR;
}
}
#endif // #if DEVICE_I2C_ASYNCH
#endif // #if DEVICE_I2C

22
targets/TARGET_TOSHIBA/TARGET_TMPM3H6/objects.h
View File

@ -93,14 +93,26 @@ struct pwmout_s {
struct i2c_s {
uint32_t address;
IRQn_Type IRQn;
TSB_I2C_TypeDef *i2c;
TSB_I2C_TypeDef *i2c;
#if DEVICE_I2C_ASYNCH
uint32_t irqn;
uint32_t state;
uint32_t event;
uint32_t stop;
#endif
};
struct spi_s {
tspi_t p_obj;
SPIName module;
uint8_t bits;
tspi_t p_obj;
SPIName module;
uint8_t bits;
PinName Slave_SCK;
#if DEVICE_SPI_ASYNCH
uint32_t irqn;
uint32_t event;
uint32_t max_size;
uint32_t state;
#endif
};
extern const gpio_regtypedef_t GPIO_SFRs[];

226
targets/TARGET_TOSHIBA/TARGET_TMPM3H6/rtc_api.c Normal file
View File

@ -0,0 +1,226 @@
/* mbed Microcontroller Library
* (C)Copyright TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION 2018 All rights reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "rtc_api.h"
#include "mbed_mktime.h"
#define RTC_24_HOUR_MODE ((uint8_t)0x01)
#define PAGER_PAGE_ONE ((uint8_t)0x01)
#define PAGER_PAGE_ZERO ((uint8_t)0xEE)
#define RTC_CLK_ENABLE ((uint8_t)0x08)
#define RTC_CLK_DISABLE ((uint8_t)0xE7)
#define RTCRESTR_RSTTMR_MASK ((uint8_t)0x20)
#define RTCRESTR_RSTTMR_R_RUN ((uint8_t)0x20)
#define CGWUPLCR_WUPTL_HIGH_MASK ((uint32_t)0x07FFF000)
#define CGWUPLCR_WULEF_MASK ((uint32_t)0x00000002)
#define CGWUPLCR_WULEF_R_DONE ((uint32_t)0x00000000)
#define CGWUPLCR_WULON_W_ENABLE ((uint32_t)0x00000001)
#define RLMLOSCCR_XTEN_RW_ENABLE ((uint32_t)0x00000001)
#define ELOSC_CFG_WARM_UP_TIME ((uint64_t)(5000))
#define ELOSC_CFG_CLOCK ((uint64_t)(32768))
#define HEX2DEC(val) ((val >> 4U) * 10U + val % 16U) // Hex to Dec conversion macro
#define DEC2HEX(val) ((val / 10U) * 16U + val % 10U) // Dec to Hex conversion macro
static int rtc_inited = 0;
static int diff_year = 100; //our RTC register only support 2000~2099
static void external_losc_enable(void);
void rtc_init(void)
{
if (!rtc_inited) {
TSB_CG_FSYSENB_IPENB03 = 1; // Enable Sys Clock for RTC
external_losc_enable(); // Enable low-speed oscillator
TSB_RTC->PAGER = 0x00; // Disable clock and alarm
while ((TSB_RTC->RESTR & RTCRESTR_RSTTMR_MASK) == RTCRESTR_RSTTMR_R_RUN) {
// Reset RTC sec counter
}
TSB_RTC->RESTR = 0xE7;
while ((TSB_RTC->RESTR & RTCRESTR_RSTTMR_MASK) == RTCRESTR_RSTTMR_R_RUN) {
// Reset RTC sec counter
}
TSB_RTC->PAGER |= PAGER_PAGE_ONE;
TSB_RTC->YEARR = 0x03; // Set leap year state
TSB_RTC->MONTHR = RTC_24_HOUR_MODE; // Set hour mode
TSB_RTC->PAGER &= PAGER_PAGE_ZERO; // Set hour mode
TSB_RTC->YEARR = 0x01; // Set year value
TSB_RTC->MONTHR = (uint8_t)0x01; // Set month value
TSB_RTC->DATER = (uint8_t)0x01; // Set date value
TSB_RTC->DAYR = (uint8_t)0x0; // Set day value
TSB_RTC->HOURR = (uint8_t)0x01; // Set hour value
TSB_RTC->MINR = (uint8_t)0x02; // Set minute value
TSB_RTC->SECR = (uint8_t)0x22; // Set second value
TSB_RTC->PAGER |= RTC_CLK_ENABLE; // Enable Clock
rtc_inited = 1; // Enable RTC initialzed status
}
}
void rtc_free(void)
{
rtc_inited = 0; // Set status of RTC peripheral driver as DISABLE
}
int rtc_isenabled(void)
{
return rtc_inited; // Return status of RTC peripheral driver
}
time_t rtc_read(void)
{
if (!rtc_inited) {
// Return invalid time for now!
return 0;
}
struct tm timeinfo;
uint8_t read_1 = 0U;
uint8_t read_2 = 0U;
timeinfo.tm_isdst = 0;//no summer time
TSB_RTC->PAGER &= PAGER_PAGE_ZERO;
read_1 = TSB_RTC->SECR; // Get sec value
timeinfo.tm_sec = HEX2DEC(read_1);
do { // Get minute value
read_1 = TSB_RTC->MINR;
read_2 = TSB_RTC->MINR;
} while (read_1 != read_2);
timeinfo.tm_min = HEX2DEC(read_1);
do { // Get hour value
read_1 = TSB_RTC->HOURR;
read_2 = TSB_RTC->HOURR;
} while (read_1 != read_2);
timeinfo.tm_hour = HEX2DEC(read_1);
do { // Get Month date value
read_1 = TSB_RTC->DATER;
read_2 = TSB_RTC->DATER;
} while (read_1 != read_2);
timeinfo.tm_mday = HEX2DEC(read_1);
do { // Get Month value
read_1 = TSB_RTC->MONTHR;
read_2 = TSB_RTC->MONTHR;
} while (read_1 != read_2);
timeinfo.tm_mon = HEX2DEC(read_1)-1;
do { // Get weekday value
read_1 = TSB_RTC->DAYR;
read_2 = TSB_RTC->DAYR;
} while (read_1 != read_2);
timeinfo.tm_wday = HEX2DEC(read_1);
do { // Get year value
read_1 = TSB_RTC->YEARR;
read_2 = TSB_RTC->YEARR;
} while (read_1 != read_2);
timeinfo.tm_year = (HEX2DEC(read_1)+ diff_year);
time_t t;
if (_rtc_maketime(&timeinfo, &t, RTC_4_YEAR_LEAP_YEAR_SUPPORT) == false) {
return 0;
}
return t;
}
void rtc_write(time_t t)
{
if (!rtc_inited) {
// Initialize the RTC as not yet initialized
rtc_init();
}
struct tm timeinfo;
if (_rtc_localtime(t, &timeinfo, RTC_4_YEAR_LEAP_YEAR_SUPPORT) == false) {
return;
}
diff_year = timeinfo.tm_year - (timeinfo.tm_year % 100);
TSB_RTC->PAGER &= RTC_CLK_DISABLE; // Disable clock
// Check current year is leap year or not
if (((timeinfo.tm_year % 4) == 0 && (timeinfo.tm_year % 100) != 0) ||
(timeinfo.tm_year % 400) == 0) {
TSB_RTC->PAGER |= PAGER_PAGE_ONE; // Current year is a leap year
TSB_RTC->YEARR = 0x00;
} else if ((timeinfo.tm_year % 4) == 1) {
TSB_RTC->PAGER |= PAGER_PAGE_ONE; // Current year is the year following a leap year
TSB_RTC->YEARR = 0x01;
} else if ((timeinfo.tm_year % 4) == 2) {
TSB_RTC->PAGER |= PAGER_PAGE_ONE; // Current year is two years after a leap year
TSB_RTC->YEARR = 0x02;
} else {
TSB_RTC->PAGER |= PAGER_PAGE_ONE; // Current year is three years after a leap year
TSB_RTC->YEARR = 0x03;
}
TSB_RTC->PAGER &= PAGER_PAGE_ZERO; // Select PAGE 0
TSB_RTC->YEARR = (uint8_t)DEC2HEX((timeinfo.tm_year - diff_year)); // Set year value
// Set month value, tm_mon=0 means Jan while 1 is Jan
TSB_RTC->MONTHR = (uint8_t)DEC2HEX((timeinfo.tm_mon+1));
TSB_RTC->DATER = (uint8_t)DEC2HEX(timeinfo.tm_mday); // Set date value
TSB_RTC->DAYR = (uint8_t)(timeinfo.tm_wday); // Set week day value
TSB_RTC->HOURR = (uint8_t)DEC2HEX(timeinfo.tm_hour); // Set hour value
TSB_RTC->MINR = (uint8_t)DEC2HEX(timeinfo.tm_min); // Set minute value
TSB_RTC->SECR = (uint8_t)DEC2HEX(timeinfo.tm_sec); // Set second value
TSB_RTC->RESTR |= RTCRESTR_RSTTMR_R_RUN;
while ((TSB_RTC->RESTR & RTCRESTR_RSTTMR_MASK) == RTCRESTR_RSTTMR_R_RUN) {
// Reset RTC sec counter, otherwise the 1st second will not be accurate
}
// Setting Wait
// When stop mode is selected, CaseA or CaseB is need.
// CaseA: Wait for RTC 1Hz interrupt.
// CaseB: Check the clock register setting.
{
uint8_t flag = 1;
time_t time_read = {0};
while(flag) {
time_read = rtc_read();
if( time_read == t) { // Wait for setting successfully
flag = 0;
}
}
}
TSB_RTC->PAGER |= RTC_CLK_ENABLE; // Enable Clock
}
static void external_losc_enable(void)
{
uint32_t work;
if( (TSB_RLM->LOSCCR & 0x01) == 0 ) { //external losc is not enabled.
uint64_t x = (uint64_t)(ELOSC_CFG_WARM_UP_TIME * ELOSC_CFG_CLOCK);
x = (uint64_t)(x / (uint64_t)(1000000));
work = (uint32_t)x;
work &= (uint32_t)(0xFFFFFFF0);
work <<= 8;
TSB_CG->WUPLCR = work;
TSB_RLM->LOSCCR = RLMLOSCCR_XTEN_RW_ENABLE;
work = (uint32_t)(TSB_CG->WUPLCR & CGWUPLCR_WUPTL_HIGH_MASK);
TSB_CG->WUPLCR = (uint32_t)(work | CGWUPLCR_WULON_W_ENABLE);
while ((TSB_CG->WUPLCR & CGWUPLCR_WULEF_MASK) != CGWUPLCR_WULEF_R_DONE) {
// No processing
}
}
}

45
targets/TARGET_TOSHIBA/TARGET_TMPM3H6/serial_api.c
View File

@ -21,19 +21,35 @@
#include "objects.h"
static const PinMap PinMap_UART_TX[] = {
{PA1, SERIAL_0, PIN_DATA(1, 1)},
{PM1, SERIAL_0, PIN_DATA(1, 1)},
{PJ2, SERIAL_1, PIN_DATA(2, 1)},
{PL1, SERIAL_2, PIN_DATA(2, 1)},
{PB2, SERIAL_2, PIN_DATA(1, 1)},
{NC, NC, 0}
};
static const PinMap PinMap_UART_RX[] = {
{PA2, SERIAL_0, PIN_DATA(1, 0)},
{PM2, SERIAL_0, PIN_DATA(1, 0)},
{PJ1, SERIAL_1, PIN_DATA(2, 0)},
{PL0, SERIAL_2, PIN_DATA(2, 0)},
{PB3, SERIAL_2, PIN_DATA(1, 0)},
{NC, NC, 0}
};
#if DEVICE_SERIAL_FC
static const PinMap PinMap_UART_CTS[] = {
{PM3, SERIAL_0, PIN_DATA(1, 0)},
{PJ3, SERIAL_1, PIN_DATA(1, 0)},
{PB4, SERIAL_2, PIN_DATA(1, 0)},
{NC, NC, 0}
};
static const PinMap PinMap_UART_RTS[] = {
{PM4, SERIAL_0, PIN_DATA(1, 1)},
{PJ4, SERIAL_1, PIN_DATA(1, 1)},
{PB5, SERIAL_2, PIN_DATA(1, 1)},
{NC, NC, 0}
};
#endif
static uint32_t serial_irq_ids[UART_NUM] = {0};
static uart_irq_handler irq_handler;
int stdio_uart_inited = 0;
@ -56,7 +72,7 @@ void serial_init(serial_t *obj, PinName tx, PinName rx)
case SERIAL_0:
obj->UARTx = TSB_UART0;
TSB_CG_FSYSENA_IPENA23 = ENABLE;
TSB_CG_FSYSENA_IPENA00 = ENABLE;
TSB_CG_FSYSENA_IPENA11 = ENABLE;
break;
case SERIAL_1:
obj->UARTx = TSB_UART1;
@ -67,7 +83,7 @@ void serial_init(serial_t *obj, PinName tx, PinName rx)
case SERIAL_2:
obj->UARTx = TSB_UART2;
TSB_CG_FSYSENA_IPENA25 = ENABLE;
TSB_CG_FSYSENA_IPENA10 = ENABLE;
TSB_CG_FSYSENA_IPENA01 = ENABLE;
break;
default:
error("UART is not available");
@ -290,6 +306,23 @@ void serial_break_clear(serial_t *obj)
obj->UARTx->TRANS &= ~(0x08);
}
#if DEVICE_SERIAL_FC
void serial_set_flow_control(serial_t *obj, FlowControl type, PinName rxflow, PinName txflow)
{
UARTName uart_cts = (UARTName)pinmap_peripheral(txflow, PinMap_UART_CTS);
UARTName uart_rts = (UARTName)pinmap_peripheral(rxflow, PinMap_UART_RTS);
UARTName uart_name = (UARTName)pinmap_merge(uart_cts, uart_rts);
MBED_ASSERT((int)uart_name != NC);
pinmap_pinout(rxflow, PinMap_UART_RTS);
pinmap_pinout(txflow, PinMap_UART_CTS);
pin_mode(txflow, PullUp);
pin_mode(rxflow, PullUp);
obj->UARTx->CR0 |= (3U << 9);
}
#endif
static void uart_swreset(TSB_UART_TypeDef *UARTx)
{
while (((UARTx->SWRST) & UARTxSWRST_SWRSTF_MASK) == UARTxSWRST_SWRSTF_RUN) {

287
targets/TARGET_TOSHIBA/TARGET_TMPM3H6/spi_api.c
View File

@ -13,15 +13,50 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdbool.h>
#include "spi_api.h"
#include "mbed_error.h"
#include "pinmap.h"
#include "gpio_include.h"
#include "txz_tspi.h"
#define TIMEOUT 1000
#define INITIAL_SPI_FREQ 1000000
#if DEVICE_I2C_ASYNCH
#define SPI_S(obj) (struct spi_s *) (&((obj)->spi))
#else
#define SPI_S(obj) (struct spi_s *) (obj)
#endif
#if DEVICE_SPI_ASYNCH
static void spi_irq_handler(spi_t *obj);
static void disable_irq(uint32_t irqn);
static void clear_irq(uint32_t irqn);
enum {
SPI_TRANSFER_STATE_IDLE = 0U,
SPI_TRANSFER_STATE_BUSY
} SPI_TransferState;
typedef struct {
IRQn_Type Tx;
IRQn_Type Rx;
IRQn_Type Error;
} spi_irq_t;
static const spi_irq_t SPI_CH0_IRQN_TBL[1] = {
{INTT0RX_IRQn, INTT0TX_IRQn, INTT0ERR_IRQn}
};
static const spi_irq_t SPI_CH1_IRQN_TBL[1] = {
{INTT1RX_IRQn, INTT1TX_IRQn, INTT1ERR_IRQn}
};
#endif
static const PinMap PinMap_SPI_SCLK[] = {
{PM0, SPI_0, PIN_DATA(3, 2)},
{PP0, SPI_1, PIN_DATA(1, 2)},
{PM0, SPI_0, PIN_DATA(3, 1)},
{PP0, SPI_1, PIN_DATA(1, 1)},
{NC, NC, 0}
};
@ -38,13 +73,20 @@ static const PinMap PinMap_SPI_MISO[] = {
};
static const PinMap PinMap_SPI_SSEL[] = {
{PM3, SPI_0, PIN_DATA(3, 1)},
{PM3, SPI_0, PIN_DATA(3, 2)},
{PL6, SPI_1, PIN_DATA(1, 2)},
{NC, NC, 0}
};
void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel)
static const PinMap PinMap_SPISLAVE_SCLK[] = {
{PM0, SPI_0, PIN_DATA(3, 0)},
{PP0, SPI_1, PIN_DATA(1, 0)},
{NC, NC, 0}
};
void spi_init(spi_t *t_obj, PinName mosi, PinName miso, PinName sclk, PinName ssel)
{
struct spi_s *obj = SPI_S(t_obj);
// Check pin parameters
SPIName spi_mosi = (SPIName)pinmap_peripheral(mosi, PinMap_SPI_MOSI);
SPIName spi_miso = (SPIName)pinmap_peripheral(miso, PinMap_SPI_MISO);
@ -63,12 +105,18 @@ void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel
obj->p_obj.p_instance = TSB_TSPI0;
TSB_CG_FSYSENA_IPENA18 = ENABLE;
TSB_CG_FSYSENA_IPENA11 = ENABLE;
#if DEVICE_SPI_ASYNCH
obj->irqn = (uint32_t)&SPI_CH0_IRQN_TBL;
#endif
break;
case SPI_1:
obj->p_obj.p_instance = TSB_TSPI1;
TSB_CG_FSYSENA_IPENA19 = ENABLE;
TSB_CG_FSYSENA_IPENA13 = ENABLE;
TSB_CG_FSYSENA_IPENA10 = ENABLE;
#if DEVICE_SPI_ASYNCH
obj->irqn = (uint32_t)&SPI_CH1_IRQN_TBL;
#endif
break;
default:
error("Cannot found SPI module corresponding with input pins.");
@ -79,6 +127,7 @@ void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel
pinmap_pinout(mosi, PinMap_SPI_MOSI);
pinmap_pinout(miso, PinMap_SPI_MISO);
pinmap_pinout(sclk, PinMap_SPI_SCLK);
obj->Slave_SCK = sclk;
if (ssel != NC) {
pinmap_pinout(ssel, PinMap_SPI_SSEL);
@ -113,7 +162,7 @@ void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel
obj->p_obj.init.cnt3.rffllclr = TSPI_RX_BUFF_CLR_DONE; // receive buffer clear
//baudrate settings
spi_frequency(obj, (int)INITIAL_SPI_FREQ);
spi_frequency(t_obj, (int)INITIAL_SPI_FREQ);
//Format Control 0 settings
obj->p_obj.init.fmr0.dir = TSPI_DATA_DIRECTION_MSB; // MSB bit first
@ -141,14 +190,16 @@ void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel
tspi_init(&obj->p_obj);
}
void spi_free(spi_t *obj)
void spi_free(spi_t *t_obj)
{
struct spi_s *obj = SPI_S(t_obj);
tspi_deinit(&obj->p_obj);
obj->module = (SPIName)NC;
}
void spi_format(spi_t *obj, int bits, int mode, int slave)
void spi_format(spi_t *t_obj, int bits, int mode, int slave)
{
struct spi_s *obj = SPI_S(t_obj);
MBED_ASSERT((slave == 0U) || (slave == 1U)); // 0: master mode, 1: slave mode
MBED_ASSERT((bits >= 8) && (bits <= 32));
@ -167,11 +218,16 @@ void spi_format(spi_t *obj, int bits, int mode, int slave)
obj->p_obj.init.fmr0.ckpha = TSPI_SERIAL_CK_1ST_EDGE;
}
if(slave) {
pinmap_pinout(obj->Slave_SCK, PinMap_SPISLAVE_SCLK);
obj->p_obj.init.cnt1.mstr = TSPI_SLAVE_OPERATION; // Slave mode operation
}
tspi_init(&obj->p_obj);
}
void spi_frequency(spi_t *obj, int hz)
void spi_frequency(spi_t *t_obj, int hz)
{
struct spi_s *obj = SPI_S(t_obj);
uint8_t brs = 0;
uint8_t brck = 0;
uint16_t prsck = 1;
@ -203,8 +259,9 @@ void spi_frequency(spi_t *obj, int hz)
tspi_init(&obj->p_obj);
}
int spi_master_write(spi_t *obj, int value)
int spi_master_write(spi_t *t_obj, int value)
{
struct spi_s *obj = SPI_S(t_obj);
uint8_t ret_value = 0;
tspi_transmit_t send_obj;
@ -223,14 +280,14 @@ int spi_master_write(spi_t *obj, int value)
return ret_value;
}
int spi_master_block_write(spi_t *obj, const char *tx_buffer, int tx_length,
int spi_master_block_write(spi_t *t_obj, const char *tx_buffer, int tx_length,
char *rx_buffer, int rx_length, char write_fill)
{
int total = (tx_length > rx_length) ? tx_length : rx_length;
for (int i = 0; i < total; i++) {
char out = (i < tx_length) ? tx_buffer[i] : write_fill;
char in = spi_master_write(obj, out);
char in = spi_master_write(t_obj, out);
if (i < rx_length) {
rx_buffer[i] = in;
}
@ -239,8 +296,46 @@ int spi_master_block_write(spi_t *obj, const char *tx_buffer, int tx_length,
return total;
}
int spi_busy(spi_t *obj)
int spi_slave_receive(spi_t *t_obj)
{
struct spi_s *obj = SPI_S(t_obj);
int ret = 1;
uint32_t status;
tspi_get_status(&obj->p_obj, &status);
if((status & (TSPI_RX_REACH_FILL_LEVEL_MASK)) == 0) {
ret = 0;
}
return ret;
}
int spi_slave_read(spi_t *t_obj)
{
struct spi_s *obj = SPI_S(t_obj);
uint8_t ret_value = 0;
ret_value = obj->p_obj.p_instance->DR & 0xFF;
// Receive Complete Flag is clear.
obj->p_obj.p_instance->SR |= TSPI_RX_DONE_CLR;
obj->p_obj.p_instance->CR1 &= TSPI_TRXE_DISABLE_MASK;
return ret_value;
}
void spi_slave_write(spi_t *t_obj, int value)
{
struct spi_s *obj = SPI_S(t_obj);
// Enable TSPI Transmission Control.
obj->p_obj.p_instance->CR1 |= TSPI_TRXE_ENABLE;
obj->p_obj.p_instance->DR = value & 0xFF;
}
int spi_busy(spi_t *t_obj)
{
struct spi_s *obj = SPI_S(t_obj);
int ret = 1;
uint32_t status = 0;
@ -253,8 +348,9 @@ int spi_busy(spi_t *obj)
return ret;
}
uint8_t spi_get_module(spi_t *obj)
uint8_t spi_get_module(spi_t *t_obj)
{
struct spi_s *obj = SPI_S(t_obj);
return (uint8_t)(obj->module);
}
@ -290,10 +386,173 @@ const PinMap *spi_slave_miso_pinmap()
const PinMap *spi_slave_clk_pinmap()
{
return PinMap_SPI_SCLK;
return PinMap_SPISLAVE_SCLK;
}
const PinMap *spi_slave_cs_pinmap()
{
return PinMap_SPI_SSEL;
}
#if DEVICE_SPI_ASYNCH
void spi_master_transfer(spi_t *obj, const void *tx, size_t tx_length, void *rx, size_t rx_length, uint8_t bit_width,
uint32_t handler, uint32_t event, DMAUsage hint)
{
struct spi_s *spiobj = SPI_S(obj);
spi_irq_t *p_irqn = (spi_irq_t *)spiobj->irqn;
bool use_tx = (tx != NULL && tx_length > 0);
bool use_rx = (rx != NULL && rx_length > 0);
// don't do anything, if the buffers aren't valid
if (!use_tx && !use_rx) {
return;
}
disable_irq(spiobj->irqn);
spiobj->p_obj.p_instance->CR1 &= TSPI_TRXE_DISABLE_MASK;
spiobj->p_obj.p_instance->SR |= (TSPI_TX_DONE_CLR | TSPI_RX_DONE_CLR);
spiobj->p_obj.p_instance->CR3 |= (TSPI_TX_BUFF_CLR_DONE | TSPI_RX_BUFF_CLR_DONE);
clear_irq(spiobj->irqn);
obj->tx_buff.buffer = (void *)tx;
obj->tx_buff.length = tx_length;
obj->tx_buff.pos = 0;
obj->rx_buff.buffer = (void *)rx;
obj->rx_buff.length = rx_length;
obj->rx_buff.pos = 0;
spiobj->event = 0;
spiobj->state = SPI_TRANSFER_STATE_IDLE;
NVIC_SetVector(p_irqn->Error, (uint32_t)handler);
NVIC_SetVector(p_irqn->Tx, (uint32_t)handler);
NVIC_SetVector(p_irqn->Rx, (uint32_t)handler);
// Enable Error Interrupt, Receive complete interrupt and Transmit complete interrupt
spiobj->p_obj.p_instance->CR2 |= (TSPI_TX_INT_ENABLE | TSPI_RX_INT_ENABLE | TSPI_ERR_INT_ENABLE);
if (use_tx && use_rx) {
spiobj->max_size = tx_length < rx_length ? rx_length:tx_length;
spiobj->p_obj.p_instance->CR1 |= TSPI_TRXE_ENABLE;
spiobj->p_obj.p_instance->DR = ((uint8_t *)obj->tx_buff.buffer)[obj->tx_buff.pos] & 0xFF;
} else if(use_tx) {
spiobj->max_size = tx_length;
spiobj->p_obj.p_instance->CR1 |= TSPI_TRXE_ENABLE;
spiobj->p_obj.p_instance->DR = ((uint8_t *)obj->tx_buff.buffer)[obj->tx_buff.pos] & 0xFF;
} else if(use_rx) {
spiobj->max_size = rx_length;
spiobj->p_obj.p_instance->CR1 |= TSPI_TRXE_ENABLE;
spiobj->p_obj.p_instance->DR = 0xFF;
}
spiobj->state = SPI_TRANSFER_STATE_BUSY;
NVIC_EnableIRQ(p_irqn->Error);
NVIC_EnableIRQ(p_irqn->Tx);
NVIC_EnableIRQ(p_irqn->Rx);
}
uint32_t spi_irq_handler_asynch(spi_t *obj)
{
struct spi_s *spiobj = SPI_S(obj);
spi_irq_handler(obj);
return ((spiobj->event & SPI_EVENT_ALL)| SPI_EVENT_INTERNAL_TRANSFER_COMPLETE) ;
}
uint8_t spi_active(spi_t *obj)
{
struct spi_s *spiobj = SPI_S(obj);
uint8_t ret_val = 0;
if (spiobj->state != SPI_TRANSFER_STATE_IDLE) {
ret_val = 1;
}
return ret_val;
}
void spi_abort_asynch(spi_t *obj)
{
struct spi_s *spiobj = SPI_S(obj);
disable_irq(spiobj->irqn);
clear_irq(spiobj->irqn);
tspi_init(&spiobj->p_obj);
}
static void spi_irq_handler(spi_t *obj)
{
struct spi_s *spiobj = SPI_S(obj);
// Check for revceive complete flag.
if((spiobj->p_obj.p_instance->SR & TSPI_RX_DONE) &&
(spiobj->p_obj.p_instance->SR & TSPI_RX_REACH_FILL_LEVEL_MASK)) {
// Check receiver FIFO level
uint8_t rlvl = spiobj->p_obj.p_instance->SR & 0xF;
while((rlvl != 0) && (obj->rx_buff.pos < obj->rx_buff.length)) {
((uint8_t *)obj->rx_buff.buffer)[obj->rx_buff.pos++] = spiobj->p_obj.p_instance->DR & 0xFF;
rlvl--;
}
if(obj->rx_buff.pos == spiobj->max_size) {
spiobj->state = SPI_TRANSFER_STATE_IDLE;
}
// Clear rx buffer
spiobj->p_obj.p_instance->CR3 |= TSPI_RX_BUFF_CLR_DONE;
}
// Check for transmit completion flag
if(spiobj->p_obj.p_instance->SR & TSPI_TX_DONE) {
obj->tx_buff.pos++;
spiobj->p_obj.p_instance->SR |= TSPI_RX_DONE_CLR;
if(obj->tx_buff.pos == (spiobj->max_size)) {
spiobj->state = SPI_TRANSFER_STATE_IDLE;
}
if((obj->tx_buff.pos < obj->tx_buff.length) && (obj->tx_buff.pos < spiobj->max_size)) {
spiobj->p_obj.p_instance->DR = (((uint8_t *)obj->tx_buff.buffer)[obj->tx_buff.pos] & 0xFF);
} else if (obj->tx_buff.pos < spiobj->max_size) {
spiobj->p_obj.p_instance->DR = 0xFF;
}
}
// Check for error flag
if(spiobj->p_obj.p_instance->ERR) {
spiobj->event = SPI_EVENT_ERROR;
spiobj->state = SPI_TRANSFER_STATE_IDLE;
disable_irq(spiobj->irqn);
spiobj->p_obj.p_instance->SR |= (TSPI_TX_DONE_CLR | TSPI_RX_DONE_CLR);
spiobj->p_obj.p_instance->CR3 |= (TSPI_TX_BUFF_CLR_DONE | TSPI_RX_BUFF_CLR_DONE);
clear_irq(spiobj->irqn);
return;
}
if(spiobj->state == SPI_TRANSFER_STATE_IDLE) {
spiobj->event = SPI_EVENT_COMPLETE;
disable_irq(spiobj->irqn);
spiobj->p_obj.p_instance->SR |= (TSPI_TX_DONE_CLR | TSPI_RX_DONE_CLR);
spiobj->p_obj.p_instance->CR3 |= (TSPI_TX_BUFF_CLR_DONE | TSPI_RX_BUFF_CLR_DONE);
clear_irq(spiobj->irqn);
}
}
static void disable_irq(uint32_t irqn)
{
spi_irq_t *p_irqn = (spi_irq_t *)irqn;
NVIC_DisableIRQ(p_irqn->Tx);
NVIC_DisableIRQ(p_irqn->Rx);
NVIC_DisableIRQ(p_irqn->Error);
}
static void clear_irq(uint32_t irqn)
{
spi_irq_t *p_irqn = (spi_irq_t *)irqn;
NVIC_ClearPendingIRQ(p_irqn->Tx);
NVIC_ClearPendingIRQ(p_irqn->Rx);
NVIC_ClearPendingIRQ(p_irqn->Error);
}
#endif

5
targets/targets.json
View File

@ -8699,11 +8699,16 @@
"PORTINOUT",
"PORTOUT",
"PWMOUT",
"RTC",
"SERIAL",
"SERIAL_FC",
"SLEEP",
"SPI",
"SPISLAVE",
"SPI_ASYNCH",
"I2C",
"I2CSLAVE",
"I2C_ASYNCH",
"STDIO_MESSAGES",
"MPU"
],