ssize_t SendRcp(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned long keyCode;
int status = -EINVAL;
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"SendRcp received string: ""%s""\n", buf);
if(HalAcquireIsrLock() != HAL_RET_SUCCESS)
{
return -ERESTARTSYS;
}
while(gDriverContext.flags & MHL_STATE_FLAG_RCP_READY) {
if(strict_strtoul(buf, 0, &keyCode)) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"Unable to convert keycode string\n");
break;
}
if(keyCode >= 0xFE) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"keycode (0x%x) is too large to be valid\n", (int)keyCode);
break;
}
gDriverContext.flags &= ~(MHL_STATE_FLAG_RCP_RECEIVED |
MHL_STATE_FLAG_RCP_ACK |
MHL_STATE_FLAG_RCP_NAK);
gDriverContext.flags |= MHL_STATE_FLAG_RCP_SENT;
gDriverContext.keyCode = (uint8_t)keyCode;
SiiMhlTxRcpSend((uint8_t)keyCode);
status = count;
break;
}
HalReleaseIsrLock();
return status;
}
/**
* @brief Write a series of bytes to an I2c device using SMBus protocol.
*
*****************************************************************************/
halReturn_t HalSmbusWriteBlock(uint8_t command, uint8_t const *blockData,
uint8_t length)
{
halReturn_t retStatus;
int32_t status;
retStatus = I2cAccessCheck();
if (retStatus != HAL_RET_SUCCESS)
{
return retStatus;
}
if(length > I2C_SMBUS_BLOCK_MAX)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,
"HalSmbusWriteBlock, bufferLen param too big (%d) max size (%d)!\n",
length, I2C_SMBUS_BLOCK_MAX);
return HAL_RET_PARAMETER_ERROR;
}
status = i2c_smbus_write_i2c_block_data(gMhlDevice.pI2cClient, command,
length, blockData);
if (status < 0)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,
"i2c_smbus_write_i2c_block_data returned error: %d\n",status);
return HAL_RET_FAILURE;
}
return HAL_RET_SUCCESS;
}
static halReturn_t HalGpioConfigStatus(enum iomux_func status)
{
int ret = 0;
struct iomux_block *pMhlGpioBlock = NULL;
struct block_config *pMhlGpioBlockConfig = NULL;
/* get gpio block*/
pMhlGpioBlock = iomux_get_block(MHL_GPIO_BLOCK_NAME);
if (IS_ERR(pMhlGpioBlock))
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"HalGpioSetResource: Get GPIO Block Failed\n");
return HAL_RET_FAILURE;
}
/* get gpio block config*/
pMhlGpioBlockConfig = iomux_get_blockconfig(MHL_GPIO_BLOCK_NAME);
if (IS_ERR(pMhlGpioBlockConfig))
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"HalGpioSetResource: get GPIO Block Config Failed\n");
return HAL_RET_FAILURE;
}
/* config gpio work mode*/
ret = blockmux_set(pMhlGpioBlock, pMhlGpioBlockConfig, status);
if (ret)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"HalGpioConfigStatus: Config GPIO Block Failed\n");
return HAL_RET_FAILURE;
}
return HAL_RET_SUCCESS;
}
/**
* @brief Platform specific function to get the input pin value of the MHL
* transmitter device.
*
*****************************************************************************/
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(MSG_ERR,"%d is NOT right gpio_index!\n",(int)gpio);
return HAL_RET_FAILURE;
}
if(pGpioInfo->gpio_direction != DIRECTION_IN)
{
SII_DEBUG_PRINT(MSG_ERR,"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;
}
int32_t StopMhlTxDevice(void)
{
halReturn_t halStatus;
printk("Stopping %s\n", MHL_PART_NAME);
HalRemoveIrqHandler();
//HalRemoveSilMonRequestIrqHandler();
#ifdef RGB_BOARD
//HalRemoveSilExtDeviceIrqHandler();
#endif
halStatus = HalCloseI2cDevice();
if (halStatus != HAL_RET_SUCCESS)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,
"Closing of I2c device failed, error code: %d\n",halStatus);
return -EIO;
}
halStatus = HalTerm();
if (halStatus != HAL_RET_SUCCESS)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,
"Termination of HAL failed, error code: %d\n",halStatus);
return -EIO;
}
SiiOsTerm();
return 0;
}
/**
* @brief Read a series of bytes from an I2c device using SMBus protocol.
*
*****************************************************************************/
halReturn_t HalSmbusReadBlock(uint8_t command, uint8_t *buffer, uint8_t *bufferLen)
{
halReturn_t retStatus;
int32_t status;
retStatus = I2cAccessCheck();
if (retStatus != HAL_RET_SUCCESS)
{
return retStatus;
}
if(*bufferLen > I2C_SMBUS_BLOCK_MAX)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,
"HalSmbusReadBlock, bufferLen param too big (%d) max size (%d)!\n",
*bufferLen, I2C_SMBUS_BLOCK_MAX);
return HAL_RET_PARAMETER_ERROR;
}
status = i2c_smbus_read_i2c_block_data(gMhlDevice.pI2cClient, command,
*bufferLen, buffer);
if (status < 0)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,
"i2c_smbus_read_i2c_block_data returned error: %d\n",status);
return HAL_RET_FAILURE;
}
*bufferLen = (uint8_t)status; /* return # of bytes read */
return HAL_RET_SUCCESS;
}
/**
* @brief Platform specific function to set the output pin to control the MHL
* transmitter device.
*
*****************************************************************************/
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(MSG_ERR,"%d is NOT right gpio_index!\n",(int)gpio);
return HAL_RET_FAILURE;
}
if(pGpioInfo->gpio_direction != DIRECTION_OUT)
{
SII_DEBUG_PRINT(MSG_ERR,"gpio(%d) is NOT ouput gpio!\n",pGpioInfo->gpio_number);
return HAL_RET_FAILURE;
}
gpio_set_value(pGpioInfo->gpio_number, value ? 1 : 0);
if(value)
{
SII_DEBUG_PRINT(MSG_STAT,">> %s to HIGH <<\n",pGpioInfo->gpio_descripion);
}
else
{
SII_DEBUG_PRINT(MSG_STAT,">> %s to LOW <<\n",pGpioInfo->gpio_descripion);
}
return HAL_RET_SUCCESS;
}
halReturn_t HalInstallIrqHandler(fwIrqHandler_t irqHandler)
{
//int retStatus;
halReturn_t halRet;
init_waitqueue_head(&mhl_irq_wq);
mhl_irq_task = kthread_create(mhl_irq_kthread, NULL, "hdmi_update_kthread");
wake_up_process(mhl_irq_task);
if(irqHandler == NULL)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"HalInstallIrqHandler: irqHandler cannot be NULL!\n");
return HAL_RET_PARAMETER_ERROR;
}
halRet = I2cAccessCheck();
if (halRet != HAL_RET_SUCCESS)
{
return halRet;
}
#if 0
if(gMhlDevice.pI2cClient->irq == 0)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"HalInstallIrqHandler: No IRQ assigned to I2C device!\n");
return HAL_RET_FAILURE;
}
#endif
#if 0
mt_set_gpio_mode(GPIO_MHL_EINT_PIN, GPIO_MODE_01);
mt_set_gpio_dir(GPIO_MHL_EINT_PIN, GPIO_DIR_IN);
mt_set_gpio_pull_select(GPIO_MHL_EINT_PIN, GPIO_PULL_UP);
mt_set_gpio_pull_enable(GPIO_MHL_EINT_PIN, true);
#endif
mt65xx_eint_set_sens(CUST_EINT_MHL_NUM, MT65xx_LEVEL_SENSITIVE);
mt65xx_eint_registration(CUST_EINT_MHL_NUM, 0, MT65XX_EINT_POL_NEG, &mhl8338_irq_handler, 0);
#if 0
gMhlDevice.irqHandler = irqHandler;
retStatus = request_threaded_irq(gMhlDevice.pI2cClient->irq, NULL,
HalThreadedIrqHandler,
IRQF_TRIGGER_LOW | IRQF_ONESHOT,
gMhlI2cIdTable[0].name,
&gMhlDevice);
if(retStatus != 0)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"HalInstallIrqHandler: request_threaded_irq failed, status: %d\n",
retStatus);
gMhlDevice.irqHandler = NULL;
return HAL_RET_FAILURE;
}
#endif
return HAL_RET_SUCCESS;
}
/**
* @brief Request access to the specified I2c device.
*
*****************************************************************************/
halReturn_t HalOpenI2cDevice(char const *DeviceName, char const *DriverName)
{
halReturn_t retStatus;
int32_t retVal;
retStatus = HalInitCheck();
if (retStatus != HAL_RET_SUCCESS)
{
return retStatus;
}
retVal = strnlen(DeviceName, I2C_NAME_SIZE);
if (retVal >= I2C_NAME_SIZE)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "I2c device name too long!\n");
return HAL_RET_PARAMETER_ERROR;
}
memcpy(gMhlI2cIdTable[0].name, DeviceName, retVal);
gMhlI2cIdTable[0].name[retVal] = 0;
gMhlI2cIdTable[0].driver_data = 0;
gMhlDevice.driver.driver.name = DriverName;
gMhlDevice.driver.id_table = gMhlI2cIdTable;
gMhlDevice.driver.probe = MhlI2cProbe;
gMhlDevice.driver.remove = MhlI2cRemove;
retVal = i2c_add_driver(&gMhlDevice.driver);
if (retVal != 0)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "I2C driver add failed\n");
retStatus = HAL_RET_FAILURE;
}
else
{
if (gMhlDevice.pI2cClient == NULL)
{
i2c_del_driver(&gMhlDevice.driver);
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "I2C driver add failed\n");
retStatus = HAL_RET_NO_DEVICE;
}
else
{
retStatus = HAL_RET_SUCCESS;
}
}
return retStatus;
}
/**
* @brief Configure platform GPIOs needed by the MHL device.
*
*****************************************************************************/
halReturn_t HalGpioInit(void)
{
int status;
int i ,j;
#if 0 // pinmux need not be configed here in aml platform. by Jets, Nov/25/2013
HalSetPinMux();
#endif
aml_get_gpio();
for(i =0; i< ARRAY_SIZE(GPIO_List);i++)
{
/* Request GPIO . */
status = gpio_request(GPIO_List[i].gpio_number, GPIO_List[i].gpio_descripion);
if (status < 0 && status != -EBUSY)
{
SII_DEBUG_PRINT(MSG_ERR,"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(MSG_ERR,"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;
}
/**
* @brief SilMon IRQ handler,
*
*****************************************************************************/
static irqreturn_t HalSilMonRequestIrqHandler(int irq, void *data)
{
pMhlDeviceContext pMhlDevContext = (pMhlDeviceContext)data;
int gpio_value;
unsigned long flags;
// SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"------------- HalSilMonRequestIrqHandler irq coming! -------------\n");
spin_lock_irqsave(&pMhlDevContext->SilMonRequestIRQ_Lock, flags);
if(HalGpioGetPin(GPIO_REQ_IN,&gpio_value)<0)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"HalSilMonRequestIrqHandler GPIO(%d) get error\n",gpio_value);
spin_unlock_irqrestore(&pMhlDevContext->SilMonRequestIRQ_Lock, flags);
return IRQ_HANDLED;
}
/*
the following is for void wrongly invoke irq, it may be caused by EMI when plug in/out MHL cable;
*/
if((gMhlDevice.SilMonControlReleased&& gpio_value)
||(!gMhlDevice.SilMonControlReleased&&!gpio_value))
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"HalSilMonRequestIrqHandler, wrong IRQ coming, please check you board\n");
spin_unlock_irqrestore(&pMhlDevContext->SilMonRequestIRQ_Lock, flags);
return IRQ_HANDLED;
}
if(gpio_value)
{
HalGpioSetPin(GPIO_GNT,1);
HalEnableI2C(true);
enable_irq(pMhlDevContext->pI2cClient->irq);
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"release SiliMon control\n");
gMhlDevice.SilMonControlReleased = true;
}
else
{
disable_irq(pMhlDevContext->pI2cClient->irq);
HalEnableI2C(false);
HalGpioSetPin(GPIO_GNT,0);
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"under SiliMon control \n");
gMhlDevice.SilMonControlReleased = false;
}
spin_unlock_irqrestore(&pMhlDevContext->SilMonRequestIRQ_Lock, flags);
return IRQ_HANDLED;
}
halReturn_t HalInit(void)
{
//halReturn_t status;
if (gHalInitedFlag)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"Error: Hal layer already inited!\n");
return HAL_RET_ALREADY_INITIALIZED;
}
gMhlDevice.driver.driver.name = NULL;
gMhlDevice.driver.id_table = NULL;
gMhlDevice.driver.probe = NULL;
gMhlDevice.driver.remove = NULL;
gMhlDevice.pI2cClient = NULL;
gMhlDevice.irqHandler = NULL;
#ifdef RGB_BOARD
gMhlDevice.ExtDeviceirqHandler = NULL;
#endif
/*
status = HalGpioInit();
if(status != HAL_RET_SUCCESS)
{
return status;
}
*/
gHalInitedFlag = true;
return HAL_RET_SUCCESS;
}
/*
* @brief Interrupt handler for MHL transmitter interrupts.
*
* @param[in] irq The number of the asserted IRQ line that caused
* this handler to be called.
* @param[in] data Data pointer passed when the interrupt was enabled,
* which in this case is a pointer to the
* MhlDeviceContext of the I2c device.
*
* @return Always returns IRQ_HANDLED.
*
*****************************************************************************/
static irqreturn_t HalThreadedIrqHandler(int irq, void *data)
{
pMhlDeviceContext pMhlDevContext = (pMhlDeviceContext)data;
// SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"HalThreadedIrqHandler called\n");
if (HalAcquireIsrLock() == HAL_RET_SUCCESS)
{
/*
if(pMhlDevContext->CheckDevice &&!pMhlDevContext->CheckDevice(0))//mhl device check;
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"mhl device errror\n");
HalReleaseIsrLock();
return IRQ_HANDLED;
}
*/
if(pMhlDevContext->irqHandler)
{
(pMhlDevContext->irqHandler)();
}
HalReleaseIsrLock();
}
else
{
SII_DEBUG_PRINT(MSG_ERR,"------------- irq missing! -------------\n");
}
return IRQ_HANDLED;
}
ssize_t ReadDevCap(struct device *dev, struct device_attribute *attr,
char *buf)
{
uint8_t regValue;
int status = -EINVAL;
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "ReadDevCap called\n");
if(HalAcquireIsrLock() != HAL_RET_SUCCESS)
{
return -ERESTARTSYS;
}
do {
if(gDriverContext.flags & MHL_STATE_FLAG_CONNECTED) {
status = SiiTxGetPeerDevCapEntry(gDriverContext.devCapOffset,
®Value);
if(status != 0) {
status = -EAGAIN;
break;
}
status = scnprintf(buf, PAGE_SIZE, "offset:0x%02x=0x%02x",
gDriverContext.devCapOffset, regValue);
}
} while(false);
HalReleaseIsrLock();
return status;
}
/**
* @brief Read a series of bytes from an I2c device.
*
*****************************************************************************/
halReturn_t HalI2cMasterRead(uint8_t i2cAddr, uint8_t length,
uint8_t *buffer)
{
struct i2c_msg i2cMsg;
halReturn_t retStatus;
int32_t status;
retStatus = I2cAccessCheck();
if (retStatus != HAL_RET_SUCCESS)
{
return retStatus;
}
i2cMsg.addr = (i2cAddr >> 1);
i2cMsg.flags = I2C_M_RD;
i2cMsg.len = length;
i2cMsg.buf = buffer;
status = i2c_transfer(gMhlDevice.pI2cClient->adapter, &i2cMsg, 1);
if (status < 0)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "i2c_transfer error: %d\n",status);
return HAL_RET_FAILURE;
}
return HAL_RET_SUCCESS;
}
/**
* @brief Release GPIO pins needed by the MHL device.
*
*****************************************************************************/
halReturn_t HalGpioTerm(void)
{
halReturn_t halRet;
halRet = HalInitCheck();
if(halRet != HAL_RET_SUCCESS)
{
return halRet;
}
gpio_free(W_INT_GPIO);
gpio_free(W_RST_GPIO);
#ifdef MAKE_8240_DRIVER //(
// don't do the stuff in the else branch
#elif defined(MAKE_833X_DRIVER) //)(
// don't do the stuff in the else branch
#else //)(
gpio_free(M2U_VBUS_CTRL_M);
#endif //)
/* Set Gpio resource according config table in iomux.xls*/
halRet = HalGpioConfigStatus(LOWPOWER);
if (HAL_RET_FAILURE == halRet)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"HalGpioTerm: Config GPIO Block Failed\n");
return HAL_RET_FAILURE;
}
return HAL_RET_SUCCESS;
}
halReturn_t HalInstallSilExtDeviceIrqHandler(fwIrqHandler_t irqHandler)
{
int retStatus;
halReturn_t halRet;
halRet = I2cAccessCheck();
if (halRet != HAL_RET_SUCCESS)
{
return halRet;
}
halRet = HalGetGpioIrqNumber(GPIO_V_INT, &gMhlDevice.SilExtDeviceIRQ);
if(halRet!= HAL_RET_SUCCESS)
{
return halRet;
}
gMhlDevice.ExtDeviceirqHandler = irqHandler;
retStatus = request_threaded_irq(gMhlDevice.SilExtDeviceIRQ,NULL,
HalSilExtDeviceIrqHandler,
IRQF_TRIGGER_LOW | IRQF_ONESHOT,
gMhlI2cIdTable[0].name,
&gMhlDevice);
if(retStatus != 0)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"HalInstallIrqHandler: request_threaded_irq failed, status: %d\n",
retStatus);
gMhlDevice.ExtDeviceirqHandler = NULL;
return HAL_RET_FAILURE;
}
return HAL_RET_SUCCESS;
}
halReturn_t HalInstallSilMonRequestIrqHandler(void)
{
int retStatus;
halReturn_t halRet;
halRet = I2cAccessCheck();
if (halRet != HAL_RET_SUCCESS)
{
return halRet;
}
halRet = HalGetGpioIrqNumber(GPIO_REQ_IN, &gMhlDevice.SilMonRequestIRQ);
if(halRet!= HAL_RET_SUCCESS)
{
return halRet;
}
spin_lock_init(&gMhlDevice.SilMonRequestIRQ_Lock);
gMhlDevice.SilMonControlReleased = true;
retStatus = request_threaded_irq(gMhlDevice.SilMonRequestIRQ, NULL,
HalSilMonRequestIrqHandler,
IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING | IRQF_ONESHOT,
gMhlI2cIdTable[0].name,
&gMhlDevice);
if(retStatus != 0)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"HalInstallIrqHandler: request_threaded_irq failed, status: %d\n",
retStatus);
return HAL_RET_FAILURE;
}
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(MSG_ERR,"%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;
}
/**
* @brief Close the MHL transmitter device
*
* This is the file operation handler for release requests received from the
* system. It is called when the last process calls close() on the File
* structure created by open().
*
* Since this driver is only concerned with restricting access to one process
* at at time all that needs to be done here is to flag that the driver is no
* longer open by any process.
*
* @param[in] pInode pointer to inode representing transmitter device
* @param[in] pFile pointer to file descriptor being closed.
*
* @return Always returns 0 to indicate success.
*
*****************************************************************************/
int32_t SiiMhlRelease(struct inode *pInode, struct file *pFile)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "Close %s\n", MHL_DRIVER_NAME);
bTxOpen = false; // flag driver has been closed
return 0;
}
halReturn_t HalInitCheck(void)
{
if (!(gHalInitedFlag))
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"Error: Hal layer not currently initialize!\n");
return HAL_RET_NOT_INITIALIZED;
}
return HAL_RET_SUCCESS;
}
/**
* @brief Install IRQ handler.
*
*****************************************************************************/
halReturn_t HalInstallIrqHandler(fwIrqHandler_t irqHandler)
{
int retStatus;
halReturn_t halRet;
if(irqHandler == NULL)
{
SII_DEBUG_PRINT(MSG_ERR,"HalInstallIrqHandler: irqHandler cannot be NULL!\n");
return HAL_RET_PARAMETER_ERROR;
}
halRet = I2cAccessCheck();
if (halRet != HAL_RET_SUCCESS)
{
return halRet;
}
if(gMhlDevice.pI2cClient->irq == 0)
{
SII_DEBUG_PRINT(MSG_ERR,"HalInstallIrqHandler: No IRQ assigned to I2C device!\n");
return HAL_RET_FAILURE;
}
gMhlDevice.irqHandler = irqHandler;
aml_config_gpio_irq();
retStatus = request_threaded_irq(gMhlDevice.pI2cClient->irq, NULL,
HalThreadedIrqHandler,
IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
gMhlI2cIdTable[0].name,
&gMhlDevice);
if(retStatus != 0)
{
SII_DEBUG_PRINT(MSG_ERR,"sii5293 HalInstallIrqHandler: request_threaded_irq failed, status: %d\n",
retStatus);
gMhlDevice.irqHandler = NULL;
return HAL_RET_FAILURE;
}
return HAL_RET_SUCCESS;
}
int32_t SiiMhlOpen(struct inode *pInode, struct file *pFile)
{
if (bTxOpen) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,
"Driver already open, failing open request\n");
return -EBUSY;
}
bTxOpen = true;
return 0;
}
halReturn_t HalGpioSetResource(void)
{
int status;
struct iomux_pin *pIntPin = NULL; //interrupt pin "T28"
struct iomux_pin *pRstPin = NULL; //Reset pin "T26"
/*Set interrupt GPIO resource*/
pIntPin = iomux_get_pin(PIN_NAME_INT);
if( !pIntPin )
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,
"HalGpioSetResource: get pin of GPIO %d failed\n",
W_INT_GPIO);
return HAL_RET_FAILURE;
}
status = pinmux_setpullupdown(pIntPin, PULLUP);
if (status < 0)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,
"HalGpioSetResource: pinmux_setpullupdown of GPIO %d failed, status = %d \n",
W_INT_GPIO,status);
return HAL_RET_FAILURE;
}
/*Set Reset GPIO resource*/
pRstPin = iomux_get_pin(PIN_NAME_RST);
if( !pRstPin )
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,
"HalGpioSetResource get pin of GPIO %d failed\n",
W_RST_GPIO);
return HAL_RET_FAILURE;
}
status = pinmux_setpullupdown(pIntPin, PULLUP);
if (status < 0)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,
"HalGpioSetResource: pinmux_setpullupdown of GPIO %d failed, status = %d \n",
W_RST_GPIO,status);
return HAL_RET_FAILURE;
}
return HAL_RET_SUCCESS;
}
static irqreturn_t HalSilMonRequestIrqHandler(int irq, void *data)
{
pMhlDeviceContext pMhlDevContext = (pMhlDeviceContext)data;
int gpio_value;
unsigned long flags;
spin_lock_irqsave(&pMhlDevContext->SilMonRequestIRQ_Lock, flags);
if(HalGpioGetPin(GPIO_REQ_IN,&gpio_value)<0)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"HalSilMonRequestIrqHandler GPIO(%d) get error\n",gpio_value);
spin_unlock_irqrestore(&pMhlDevContext->SilMonRequestIRQ_Lock, flags);
return IRQ_HANDLED;
}
if((gMhlDevice.SilMonControlReleased&& gpio_value)
||(!gMhlDevice.SilMonControlReleased&&!gpio_value))
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"HalSilMonRequestIrqHandler, wrong IRQ coming, please check you board\n");
spin_unlock_irqrestore(&pMhlDevContext->SilMonRequestIRQ_Lock, flags);
return IRQ_HANDLED;
}
if(gpio_value)
{
//HalGpioSetPin(GPIO_GNT,1);
HalEnableI2C(true);
enable_irq(pMhlDevContext->pI2cClient->irq);
#ifdef RGB_BOARD
enable_irq(pMhlDevContext->SilExtDeviceIRQ);
#endif
gMhlDevice.SilMonControlReleased = true;
}
else
{
disable_irq(pMhlDevContext->pI2cClient->irq);
#ifdef RGB_BOARD
disable_irq(pMhlDevContext->SilExtDeviceIRQ);
#endif
HalEnableI2C(false);
//HalGpioSetPin(GPIO_GNT,0);
gMhlDevice.SilMonControlReleased = false;
}
spin_unlock_irqrestore(&pMhlDevContext->SilMonRequestIRQ_Lock, flags);
return IRQ_HANDLED;
}
static void HalSetPinMux(void)
{
#define PADCONF_SDMMC2_CLK_OFFSET 0x128 //GPIO130 OFFSET
int i;
unsigned short x,old;
void * base = NULL;
base = ioremap(IO_PHY_ADDRESS,
0x10000);
if (base == NULL)
{
SII_DEBUG_PRINT(MSG_ERR,"IO Mapping failed\n");
return ;
}
else
{
SII_DEBUG_PRINT(MSG_STAT,"iobase = 0x%x\n",base);
}
for(i = 0 ;i<10;i++) //GPIO130 ~~ GPIO139
{
old = ioread16(base + PAD_CONF_OFFSET + PADCONF_SDMMC2_CLK_OFFSET + i*2);
switch(i)
{
case 5:
x = (IEN | EN | PTU | M4 );break;
default:
x = (M4 | IDIS);break;
}
iowrite16(x,base + PAD_CONF_OFFSET + PADCONF_SDMMC2_CLK_OFFSET + i*2);
// SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"GPIO%d {0x%x}:0x%x => 0x%x ;\n",130+ i,(int)(base + 0x2030 + 0x128 + i*2),old,x);
}
iounmap(base);
}
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;
}
ssize_t SelectDevCap(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned long devCapOffset;
int status = -EINVAL;
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "SelectDevCap received string: ""%s""\n", buf);
do {
if(strict_strtoul(buf, 0, &devCapOffset)) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,
"Unable to convert register offset string\n");
break;
}
if(devCapOffset >= 0x0F) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,
"dev cap offset (0x%x) is too large to be valid\n",
devCapOffset);
break;
}
gDriverContext.devCapOffset = (uint8_t)devCapOffset;
status = count;
} while(false);
return status;
}
/**
* @brief Platform specific function to control Vbus power on the MHL port.
*
*****************************************************************************/
halReturn_t HalGpioSetVbusPowerPin(bool powerOn)
{
halReturn_t halRet;
halRet = HalInitCheck();
if(halRet != HAL_RET_SUCCESS)
{
return halRet;
}
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,
"HalGpioSetVbusPowerPin called but this function is not implemented yet!\n");
return HAL_RET_SUCCESS;
}
ssize_t SendRcpAck(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned long keyCode = 0x100;
unsigned long errCode = 0x100;
char *pStr;
int status = -EINVAL;
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"SendRcpAck received buf len = %d\n", count);
while(count)
{
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"SendRcpAck received string: ""%s""\n", buf);
pStr = strstr(buf, "keycode=");
if(pStr != NULL)
{
if(strict_strtoul(pStr + strlen("keycode="), 0, &keyCode)) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "Unable to convert keycode string\n");
break;
}
}
pStr = strstr(buf, "errorcode=");
if(pStr != NULL) {
if(strict_strtoul(pStr + strlen("errorcode="), 0, &errCode)) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE, "Unable to convert keycode string\n");
break;
}
}
while(--count&&*buf++);
}
if((keyCode > 0xFF) || (errCode > 0xFF)) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,"Invalid key code or error code "\
"specified, key code: 0x%02x error code: 0x%02x\n",
(int)keyCode, (int)errCode);
return status;
}
if(HalAcquireIsrLock() != HAL_RET_SUCCESS)
{
return -ERESTARTSYS;
}
while(gDriverContext.flags & MHL_STATE_FLAG_RCP_READY) {
if((keyCode != gDriverContext.keyCode)
|| !(gDriverContext.flags & MHL_STATE_FLAG_RCP_RECEIVED)) {
SII_DEBUG_PRINT(SII_OSAL_DEBUG_TRACE,
"Attempting to ACK a key code that was not received!\n");
break;
}
if(errCode == 0) {
SiiMhlTxRcpkSend((uint8_t)keyCode);
} else {
SiiMhlTxRcpeSend((uint8_t)errCode);
}
status = count;
break;
}
HalReleaseIsrLock();
return status;
}