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#define SII_HAL_LINUX_GPIO_C
#include "sii_hal.h"
#include "sii_hal_priv.h"
#include <linux/ioport.h>
#include <asm/io.h>
unsigned char pinDbgMsgs = 0;
unsigned char pinOverrideTiming = 0;
unsigned char pinDbgSw3 = 0;
unsigned char pinDbgSw4 = 0;
unsigned char pinDbgSw5 = 0;
unsigned char pinDbgSw6 = 0;
unsigned char pinSw = 0;
unsigned char pinPwSw1aEn = 0;
unsigned char pinM2uVbusCtrlM = 0;
unsigned char pinMhlUsb = 0;
typedef enum {
DIRECTION_IN = 0,
DIRECTION_OUT,
} GPIODirection_t;
typedef struct tagGPIOInfo {
GpioIndex_t index;
int gpio_number;
char gpio_descripion[40];
GPIODirection_t gpio_direction;
int init_value;
} GPIOInfo_t;
#define GPIO_ITEM(a, b, c, d) \
{.index = (a),\
.gpio_number = (b), \
.gpio_descripion = (#a), \
.gpio_direction = (c), \
.init_value = (d), }
static GPIOInfo_t GPIO_List[] = {
GPIO_ITEM(GPIO_INT, 137, DIRECTION_IN, 0),
GPIO_ITEM(GPIO_RST, 138, DIRECTION_OUT, 1),
/*
GPIO_ITEM(GPIO_M2U_VBUS_CTRL, 139,DIRECTION_OUT,1),
GPIO_ITEM(GPIO_V_INT, 132,DIRECTION_IN,0),
GPIO_ITEM(GPIO_REQ_IN, 136,DIRECTION_IN,0),
GPIO_ITEM(GPIO_GNT, 135,DIRECTION_OUT,1),
GPIO_ITEM(GPIO_MHL_USB, 131,DIRECTION_OUT,1),
GPIO_ITEM(GPIO_SRC_VBUS_ON, 133,DIRECTION_OUT,0),
GPIO_ITEM(GPIO_SINK_VBUS_ON, 134,DIRECTION_OUT,0),
GPIO_ITEM(GPIO_VBUS_EN, 130,DIRECTION_IN,0),
*/
};
static GPIOInfo_t *GetGPIOInfo(int gpio)
{
int i;
for (i = 0; i < ARRAY_SIZE(GPIO_List); i++) {
if (gpio == GPIO_List[i].index) {
return &GPIO_List[i];
}
}
return NULL;
}
#define IEN (1 << 8)
#define IDIS (0 << 8)
#define PTU (1 << 4)
#define PTD (0 << 4)
#define EN (1 << 3)
#define DIS (0 << 3)
#define M0 0
#define M1 1
#define M2 2
#define M3 3
#define M4 4
#define M5 5
#define M6 6
#define M7 7
#define IO_PHY_ADDRESS 0x48000000
#define PAD_CONF_OFFSET 0x2030
static void HalSetPinMux(void)
{
#define PADCONF_SDMMC2_CLK_OFFSET 0x128
int i;
unsigned short x, old;
void *base = NULL;
base = ioremap(IO_PHY_ADDRESS, 0x10000);
if (base == NULL) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "IO Mapping failed\n");
return;
} else {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "iobase = 0x%x\n", base);
}
for (i = 0; i < 10; i++) {
old = ioread16(base + PAD_CONF_OFFSET + PADCONF_SDMMC2_CLK_OFFSET + i * 2);
switch (i) {
case 7:
case 0:
case 6:
case 2:
x = (IEN | EN | PTU | M4);
break;
default:
x = (M4 | IDIS);
break;
}
iowrite16(x, base + PAD_CONF_OFFSET + PADCONF_SDMMC2_CLK_OFFSET + i * 2);
}
iounmap(base);
}
halReturn_t HalEnableI2C(int bEnable)
{
#define PADCONF_I2C2_SCL_OFFSET 0x18e
#define PADCONF_I2C2_SDA_OFFSET 0x190
unsigned short x, old;
void *base = NULL;
base = ioremap(IO_PHY_ADDRESS, 0x10000);
if (base == NULL) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "IO Mapping failed\n");
return HAL_RET_FAILURE;
}
old = ioread16(base + PAD_CONF_OFFSET + PADCONF_I2C2_SCL_OFFSET);
if (bEnable) {
x = (IEN | PTU | EN | M0);
} else {
x = (EN | PTD | M4 | IDIS);
}
iowrite16(x, base + PAD_CONF_OFFSET + PADCONF_I2C2_SCL_OFFSET);
old = ioread16(base + PAD_CONF_OFFSET + PADCONF_I2C2_SDA_OFFSET);
if (bEnable) {
x = (IEN | M0);
} else {
x = (EN | PTD | M4 | IDIS);
}
iowrite16(x, base + PAD_CONF_OFFSET + PADCONF_I2C2_SDA_OFFSET);
iounmap(base);
return HAL_RET_SUCCESS;
}
halReturn_t HalGpioInit(void)
{
int status;
int i, j;
HalSetPinMux();
for (i = 0; i < ARRAY_SIZE(GPIO_List); i++) {
status = gpio_request(GPIO_List[i].gpio_number, GPIO_List[i].gpio_descripion);
if (status < 0 && status != -EBUSY) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,
"HalInit gpio_request for GPIO %d (H/W Reset) failed, status: %d\n",
GPIO_List[i].gpio_number, status);
for (j = 0; j < i; j++) {
gpio_free(GPIO_List[j].gpio_number);
}
return HAL_RET_FAILURE;
}
if (GPIO_List[i].gpio_direction == DIRECTION_OUT) {
status =
gpio_direction_output(GPIO_List[i].gpio_number,
GPIO_List[i].init_value);
} else {
status = gpio_direction_input(GPIO_List[i].gpio_number);
}
if (status < 0) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,
"HalInit gpio_direction_output for GPIO %d (H/W Reset) failed, status: %d\n",
GPIO_List[i].gpio_number, status);
for (j = 0; j <= i; j++) {
gpio_free(GPIO_List[j].gpio_number);
}
return HAL_RET_FAILURE;
}
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "initialize %s successfully\n",
GPIO_List[i].gpio_descripion);
}
return HAL_RET_SUCCESS;
}
halReturn_t HalGpioTerm(void)
{
halReturn_t halRet;
int index;
halRet = HalInitCheck();
if (halRet != HAL_RET_SUCCESS) {
return halRet;
}
for (index = 0; index < ARRAY_SIZE(GPIO_List); index++) {
gpio_free(GPIO_List[index].gpio_number);
}
return HAL_RET_SUCCESS;
}
halReturn_t HalGpioSetPin(GpioIndex_t gpio, int value)
{
halReturn_t halRet;
GPIOInfo_t *pGpioInfo;
halRet = HalInitCheck();
if (halRet != HAL_RET_SUCCESS) {
return halRet;
}
pGpioInfo = GetGPIOInfo(gpio);
if (!pGpioInfo) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "%d is NOT right gpio_index!\n", (int)gpio);
return HAL_RET_FAILURE;
}
if (pGpioInfo->gpio_direction != DIRECTION_OUT) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "gpio(%d) is NOT ouput gpio!\n",
pGpioInfo->gpio_number);
return HAL_RET_FAILURE;
}
gpio_set_value(pGpioInfo->gpio_number, value ? 1 : 0);
if (gpio != GPIO_GNT) {
if (value) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, ">> %s to HIGH <<\n",
pGpioInfo->gpio_descripion);
} else {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, ">> %s to LOW <<\n",
pGpioInfo->gpio_descripion);
}
}
return HAL_RET_SUCCESS;
}
halReturn_t HalGpioGetPin(GpioIndex_t gpio, int *value)
{
halReturn_t halRet;
GPIOInfo_t *pGpioInfo;
halRet = HalInitCheck();
if (halRet != HAL_RET_SUCCESS) {
return halRet;
}
pGpioInfo = GetGPIOInfo(gpio);
if (!pGpioInfo) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "%d is NOT right gpio_index!\n", (int)gpio);
return HAL_RET_FAILURE;
}
if (pGpioInfo->gpio_direction != DIRECTION_IN) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "gpio(%d) is NOT input gpio!\n",
pGpioInfo->gpio_number);
return HAL_RET_FAILURE;
}
*value = gpio_get_value(pGpioInfo->gpio_number);
return HAL_RET_SUCCESS;
}
halReturn_t HalGetGpioIrqNumber(GpioIndex_t gpio, unsigned int *irqNumber)
{
halReturn_t halRet;
GPIOInfo_t *pGpioInfo;
halRet = HalInitCheck();
if (halRet != HAL_RET_SUCCESS) {
return halRet;
}
pGpioInfo = GetGPIOInfo(gpio);
if (!pGpioInfo) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "%d is NOT right gpio_index!\n", (int)gpio);
return HAL_RET_FAILURE;
}
*irqNumber = gpio_to_irq(pGpioInfo->gpio_number);
if (*irqNumber >= 0) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "%s(%d)-->IRQ(%d)\n",
pGpioInfo->gpio_descripion, pGpioInfo->gpio_number, *irqNumber);
return HAL_RET_SUCCESS;
}
return HAL_RET_FAILURE;
}
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