int tdmb_fc8050_spi_write_read(uint8* tx_data, int tx_length, uint8 *rx_data, int rx_length)
{
int rc;
struct spi_transfer t = {
.tx_buf = tx_data,
.rx_buf = rx_data,
.len = tx_length+rx_length,
};
struct spi_message m;
if (fc8050_ctrl_info.spi_ptr == NULL)
{
printk("tdmb_fc8050_spi_write_read error txdata=0x%x, length=%d\n", (unsigned int)tx_data, tx_length+rx_length);
}
mutex_lock(&fc8050_ctrl_info.mutex);
spi_message_init(&m);
spi_message_add_tail(&t, &m);
rc = spi_sync(fc8050_ctrl_info.spi_ptr, &m);
if ( rc < 0 )
{
printk("tdmb_fc8050_spi_read_burst result(%d), actual_len=%d\n",rc, m.actual_length);
}
mutex_unlock(&fc8050_ctrl_info.mutex);
return TRUE;
}
#ifdef FEATURE_DMB_USE_WORKQUEUE
static irqreturn_t broadcast_tdmb_spi_isr(int irq, void *handle)
{
struct tdmb_fc8050_ctrl_blk* fc8050_info_p;
unsigned long flag;
fc8050_info_p = (struct tdmb_fc8050_ctrl_blk *)handle;
if ( fc8050_info_p && fc8050_info_p->TdmbPowerOnState )
{
if (fc8050_info_p->spi_irq_status)
{
printk("######### spi read function is so late skip #########\n");
return IRQ_HANDLED;
}
// printk("***** broadcast_tdmb_spi_isr coming *******\n");
spin_lock_irqsave(&fc8050_info_p->spin_lock, flag);
queue_work(fc8050_info_p->spi_wq, &fc8050_info_p->spi_work);
spin_unlock_irqrestore(&fc8050_info_p->spin_lock, flag);
}
else
{
printk("broadcast_tdmb_spi_isr is called, but device is off state\n");
}
return IRQ_HANDLED;
}
static void broacast_tdmb_spi_work(struct work_struct *tdmb_work)
{
struct tdmb_fc8050_ctrl_blk *pTdmbWorkData;
pTdmbWorkData = container_of(tdmb_work, struct tdmb_fc8050_ctrl_blk, spi_work);
if ( pTdmbWorkData )
{
fc8050_isr_control(0);
pTdmbWorkData->spi_irq_status = TRUE;
broadcast_drv_if_isr();
pTdmbWorkData->spi_irq_status = FALSE;
fc8050_isr_control(1);
}
else
{
printk("~~~~~~~broadcast_tdmb_spi_work call but pTdmbworkData is NULL ~~~~~~~\n");
}
}
#else
static irqreturn_t broadcast_tdmb_spi_event_handler(int irq, void *handle)
{
struct tdmb_fc8050_ctrl_blk* fc8050_info_p;
fc8050_info_p = (struct tdmb_fc8050_ctrl_blk *)handle;
if ( fc8050_info_p && fc8050_info_p->TdmbPowerOnState )
{
if (fc8050_info_p->spi_irq_status)
{
printk("######### spi read function is so late skip #########\n");
return IRQ_HANDLED;
}
fc8050_isr_control(0);
fc8050_info_p->spi_irq_status = TRUE;
broadcast_drv_if_isr();
fc8050_info_p->spi_irq_status = FALSE;
fc8050_isr_control(1);
}
else
{
printk("broadcast_tdmb_spi_isr is called, but device is off state\n");
}
return IRQ_HANDLED;
}
#endif
static int broadcast_tdmb_fc8050_probe(struct spi_device *spi)
{
int rc;
#ifdef ANTENNA_SWITCHING
struct pm_gpio GPIO11_CFG = {
.direction = PM_GPIO_DIR_OUT,
.pull = PM_GPIO_PULL_NO,
.function = PM_GPIO_FUNC_NORMAL,
.vin_sel = 2,
.inv_int_pol = 0,
};
struct pm_gpio GPIO12_CFG = {
.direction = PM_GPIO_DIR_OUT,
.pull = PM_GPIO_PULL_NO,
.function = PM_GPIO_FUNC_NORMAL,
.vin_sel = 2,
.inv_int_pol = 0,
};
#endif /* ANTENNA_SWITCHING */
fc8050_ctrl_info.TdmbPowerOnState = FALSE;
fc8050_ctrl_info.spi_ptr = spi;
fc8050_ctrl_info.spi_ptr->mode = SPI_MODE_0;
fc8050_ctrl_info.spi_ptr->bits_per_word = 8;
fc8050_ctrl_info.spi_ptr->max_speed_hz = ( 24000*1000 );
rc = spi_setup(spi);
printk("broadcast_tdmb_fc8050_probe spi_setup=%d\n", rc);
BBM_HOSTIF_SELECT(NULL, 1);
#ifdef FEATURE_DMB_USE_WORKQUEUE
INIT_WORK(&fc8050_ctrl_info.spi_work, broacast_tdmb_spi_work);
fc8050_ctrl_info.spi_wq = create_singlethread_workqueue("tdmb_spi_wq");
if(fc8050_ctrl_info.spi_wq == NULL){
printk("Failed to setup tdmb spi workqueue \n");
return -ENOMEM;
}
#endif
gpio_request(DMB_RESET_N, "DMB_RESET_N");
gpio_request(DMB_EN, "DMB_EN");
gpio_request(DMB_INT_N, "DMB_INT_N");
//gpio_direction_output(DMB_RESET_N, false);
//gpio_direction_output(DMB_EN, false);
//gpio_direction_output(DMB_INT_N, false);
#ifdef ANTENNA_SWITCHING
pm8xxx_gpio_config(DMB_ANT_SEL_P_EAR, &GPIO11_CFG);
pm8xxx_gpio_config(DMB_ANT_SEL_N_INNER, &GPIO12_CFG);
gpio_set_value_cansleep(DMB_ANT_SEL_P_EAR, 1);
gpio_set_value_cansleep(DMB_ANT_SEL_N_INNER, 0);
#endif /* ANTENNA_SWITCHING */
#ifdef FEATURE_DMB_USE_WORKQUEUE
rc = request_irq(spi->irq, broadcast_tdmb_spi_isr, IRQF_DISABLED | IRQF_TRIGGER_FALLING,
spi->dev.driver->name, &fc8050_ctrl_info);
#else
rc = request_threaded_irq(spi->irq, NULL, broadcast_tdmb_spi_event_handler, IRQF_DISABLED | IRQF_TRIGGER_FALLING,
spi->dev.driver->name, &fc8050_ctrl_info);
#endif
printk("broadcast_tdmb_fc8050_probe request_irq=%d\n", rc);
tdmb_fc8050_interrupt_lock();
mutex_init(&fc8050_ctrl_info.mutex);
wake_lock_init(&fc8050_ctrl_info.wake_lock, WAKE_LOCK_SUSPEND, dev_name(&spi->dev));
spin_lock_init(&fc8050_ctrl_info.spin_lock);
#ifdef PM_QOS
pm_qos_add_request(&fc8050_ctrl_info.pm_req_list, PM_QOS_CPU_DMA_LATENCY, PM_QOS_DEFAULT_VALUE);
#endif /* PM_QOS */
printk("broadcast_fc8050_probe End\n");
return rc;
}
static int broadcast_tdmb_fc8050_remove(struct spi_device *spi)
{
printk("broadcast_tdmb_fc8050_remove \n");
#ifdef FEATURE_DMB_USE_WORKQUEUE
if (fc8050_ctrl_info.spi_wq)
{
flush_workqueue(fc8050_ctrl_info.spi_wq);
destroy_workqueue(fc8050_ctrl_info.spi_wq);
}
#endif
free_irq(spi->irq, &fc8050_ctrl_info);
mutex_destroy(&fc8050_ctrl_info.mutex);
wake_lock_destroy(&fc8050_ctrl_info.wake_lock);
#ifdef PM_QOS
pm_qos_remove_request(&fc8050_ctrl_info.pm_req_list);
#endif /* PM_QOS */
memset((unsigned char*)&fc8050_ctrl_info, 0x0, sizeof(struct tdmb_fc8050_ctrl_blk));
return 0;
}
static int broadcast_tdmb_fc8050_suspend(struct spi_device *spi, pm_message_t mesg)
{
printk("broadcast_tdmb_fc8050_suspend \n");
return 0;
}
int tdmb_fc8050_spi_write_read(uint8* tx_data, int tx_length, uint8 *rx_data, int rx_length)
{
int rc;
struct spi_transfer t = {
.tx_buf = tx_data,
.rx_buf = rx_data,
.len = tx_length+rx_length,
};
struct spi_message m;
if (fc8050_ctrl_info.spi_ptr == NULL)
{
printk("tdmb_fc8050_spi_write_read error txdata=0x%x, length=%d\n", (unsigned int)tx_data, tx_length+rx_length);
return FALSE;
}
mutex_lock(&fc8050_ctrl_info.mutex);
spi_message_init(&m);
spi_message_add_tail(&t, &m);
rc = spi_sync(fc8050_ctrl_info.spi_ptr, &m);
if ( rc < 0 )
{
printk("tdmb_fc8050_spi_read_burst result(%d), actual_len=%d\n",rc, m.actual_length);
}
mutex_unlock(&fc8050_ctrl_info.mutex);
return TRUE;
}
#ifdef FEATURE_DMB_USE_WORKQUEUE
static irqreturn_t broadcast_tdmb_spi_isr(int irq, void *handle)
{
struct tdmb_fc8050_ctrl_blk* fc8050_info_p;
unsigned long flag;
fc8050_info_p = (struct tdmb_fc8050_ctrl_blk *)handle;
if ( fc8050_info_p && fc8050_info_p->TdmbPowerOnState )
{
if (fc8050_info_p->spi_irq_status)
{
printk("######### spi read function is so late skip #########\n");
return IRQ_HANDLED;
}
// printk("***** broadcast_tdmb_spi_isr coming *******\n");
spin_lock_irqsave(&fc8050_info_p->spin_lock, flag);
queue_work(fc8050_info_p->spi_wq, &fc8050_info_p->spi_work);
spin_unlock_irqrestore(&fc8050_info_p->spin_lock, flag);
}
else
{
printk("broadcast_tdmb_spi_isr is called, but device is off state\n");
}
return IRQ_HANDLED;
}
static void broacast_tdmb_spi_work(struct work_struct *tdmb_work)
{
struct tdmb_fc8050_ctrl_blk *pTdmbWorkData;
pTdmbWorkData = container_of(tdmb_work, struct tdmb_fc8050_ctrl_blk, spi_work);
if ( pTdmbWorkData )
{
fc8050_isr_control(0);
pTdmbWorkData->spi_irq_status = TRUE;
broadcast_drv_if_isr();
pTdmbWorkData->spi_irq_status = FALSE;
fc8050_isr_control(1);
}
else
{
printk("~~~~~~~broadcast_tdmb_spi_work call but pTdmbworkData is NULL ~~~~~~~\n");
}
}
#else
static irqreturn_t broadcast_tdmb_spi_event_handler(int irq, void *handle)
{
struct tdmb_fc8050_ctrl_blk* fc8050_info_p;
fc8050_info_p = (struct tdmb_fc8050_ctrl_blk *)handle;
if ( fc8050_info_p && fc8050_info_p->TdmbPowerOnState )
{
if (fc8050_info_p->spi_irq_status)
{
printk("######### spi read function is so late skip ignore #########\n");
return IRQ_HANDLED;
}
fc8050_isr_control(0);
fc8050_info_p->spi_irq_status = TRUE;
broadcast_drv_if_isr();
fc8050_info_p->spi_irq_status = FALSE;
fc8050_isr_control(1);
}
else
{
printk("broadcast_tdmb_spi_isr is called, but device is off state\n");
}
return IRQ_HANDLED;
}
#endif
static int tdmb_configure_gpios(void)
{
int rc = OK;
int err_count = 0;
rc = gpio_request(DMB_RESET_N, "DMB_RESET_N");
if (rc < 0) {
err_count++;
printk("%s:Failed GPIO DMB_RESET_N request!!!\n",__func__);
}
rc = gpio_request(DMB_EN, "DMB_EN");
if (rc < 0) {
err_count++;
printk("%s:Failed GPIO DMB_EN request!!!\n",__func__);
}
rc = gpio_request(DMB_INT_N, "DMB_INT_N");
if (rc < 0) {
err_count++;
printk("%s:Failed GPIO DMB_INT_N request!!!\n",__func__);
}
gpio_direction_output(DMB_RESET_N, 0);
gpio_direction_output(DMB_EN, 0);
gpio_direction_input(DMB_INT_N);
if(err_count > 0) rc = -EINVAL;
return rc;
}
