static int lirc_serial_resume(struct platform_device *dev) {
unsigned long flags;
hardware_init_port();
local_irq_save(flags);
/* Enable Interrupt */
do_gettimeofday(&lasttv);
soutp(UART_IER, sinp(UART_IER)|UART_IER_MSI);
off();
lirc_buffer_clear(&rbuf);
local_irq_restore(flags);
return 0;
}
static int serial_ir_resume(struct platform_device *dev)
{
unsigned long flags;
int result;
result = hardware_init_port();
if (result < 0)
return result;
spin_lock_irqsave(&hardware[type].lock, flags);
/* Enable Interrupt */
serial_ir.lastkt = ktime_get();
soutp(UART_IER, sinp(UART_IER) | UART_IER_MSI);
off();
spin_unlock_irqrestore(&hardware[type].lock, flags);
return 0;
}
static int lirc_serial_resume(struct platform_device *dev)
{
unsigned long flags;
if (hardware_init_port() < 0) {
lirc_serial_exit();
return -EINVAL;
}
spin_lock_irqsave(&hardware[type].lock, flags);
/* Enable Interrupt */
do_gettimeofday(&lasttv);
soutp(UART_IER, sinp(UART_IER)|UART_IER_MSI);
off();
lirc_buffer_clear(&rbuf);
spin_unlock_irqrestore(&hardware[type].lock, flags);
return 0;
}
static int serial_ir_probe(struct platform_device *dev)
{
struct rc_dev *rcdev;
int i, nlow, nhigh, result;
rcdev = devm_rc_allocate_device(&dev->dev, RC_DRIVER_IR_RAW);
if (!rcdev)
return -ENOMEM;
if (hardware[type].send_pulse && hardware[type].send_space)
rcdev->tx_ir = serial_ir_tx;
if (hardware[type].set_send_carrier)
rcdev->s_tx_carrier = serial_ir_tx_carrier;
if (hardware[type].set_duty_cycle)
rcdev->s_tx_duty_cycle = serial_ir_tx_duty_cycle;
switch (type) {
case IR_HOMEBREW:
rcdev->input_name = "Serial IR type home-brew";
break;
case IR_IRDEO:
rcdev->input_name = "Serial IR type IRdeo";
break;
case IR_IRDEO_REMOTE:
rcdev->input_name = "Serial IR type IRdeo remote";
break;
case IR_ANIMAX:
rcdev->input_name = "Serial IR type AnimaX";
break;
case IR_IGOR:
rcdev->input_name = "Serial IR type IgorPlug";
break;
}
rcdev->input_phys = KBUILD_MODNAME "/input0";
rcdev->input_id.bustype = BUS_HOST;
rcdev->input_id.vendor = 0x0001;
rcdev->input_id.product = 0x0001;
rcdev->input_id.version = 0x0100;
rcdev->open = serial_ir_open;
rcdev->close = serial_ir_close;
rcdev->dev.parent = &serial_ir.pdev->dev;
rcdev->allowed_protocols = RC_BIT_ALL_IR_DECODER;
rcdev->driver_name = KBUILD_MODNAME;
rcdev->map_name = RC_MAP_RC6_MCE;
rcdev->min_timeout = 1;
rcdev->timeout = IR_DEFAULT_TIMEOUT;
rcdev->max_timeout = 10 * IR_DEFAULT_TIMEOUT;
rcdev->rx_resolution = 250000;
serial_ir.rcdev = rcdev;
setup_timer(&serial_ir.timeout_timer, serial_ir_timeout,
(unsigned long)&serial_ir);
result = devm_request_irq(&dev->dev, irq, serial_ir_irq_handler,
share_irq ? IRQF_SHARED : 0,
KBUILD_MODNAME, &hardware);
if (result < 0) {
if (result == -EBUSY)
dev_err(&dev->dev, "IRQ %d busy\n", irq);
else if (result == -EINVAL)
dev_err(&dev->dev, "Bad irq number or handler\n");
return result;
}
/* Reserve io region. */
if ((iommap &&
(devm_request_mem_region(&dev->dev, iommap, 8 << ioshift,
KBUILD_MODNAME) == NULL)) ||
(!iommap && (devm_request_region(&dev->dev, io, 8,
KBUILD_MODNAME) == NULL))) {
dev_err(&dev->dev, "port %04x already in use\n", io);
dev_warn(&dev->dev, "use 'setserial /dev/ttySX uart none'\n");
dev_warn(&dev->dev,
"or compile the serial port driver as module and\n");
dev_warn(&dev->dev, "make sure this module is loaded first\n");
return -EBUSY;
}
result = hardware_init_port();
if (result < 0)
return result;
/* Initialize pulse/space widths */
init_timing_params(50, 38000);
/* If pin is high, then this must be an active low receiver. */
if (sense == -1) {
/* wait 1/2 sec for the power supply */
msleep(500);
/*
* probe 9 times every 0.04s, collect "votes" for
* active high/low
*/
nlow = 0;
nhigh = 0;
for (i = 0; i < 9; i++) {
if (sinp(UART_MSR) & hardware[type].signal_pin)
nlow++;
else
nhigh++;
msleep(40);
}
sense = nlow >= nhigh ? 1 : 0;
dev_info(&dev->dev, "auto-detected active %s receiver\n",
sense ? "low" : "high");
} else
dev_info(&dev->dev, "Manually using active %s receiver\n",
sense ? "low" : "high");
dev_dbg(&dev->dev, "Interrupt %d, port %04x obtained\n", irq, io);
return devm_rc_register_device(&dev->dev, rcdev);
}
static int init_port(void)
{
int i, nlow, nhigh;
/* Reserve io region. */
#if defined(LIRC_ALLOW_MMAPPED_IO)
/* Future MMAP-Developers: Attention!
For memory mapped I/O you *might* need to use ioremap() first,
for the NSLU2 it's done in boot code. */
if(((iommap != 0)
&& (request_mem_region(iommap, 8<<ioshift,
LIRC_DRIVER_NAME) == NULL))
|| ((iommap == 0)
&& (request_region(io, 8, LIRC_DRIVER_NAME) == NULL)))
#else
if(request_region(io, 8, LIRC_DRIVER_NAME)==NULL)
#endif
{
printk(KERN_ERR LIRC_DRIVER_NAME
": port %04x already in use\n", io);
printk(KERN_WARNING LIRC_DRIVER_NAME
": use 'setserial /dev/ttySX uart none'\n");
printk(KERN_WARNING LIRC_DRIVER_NAME
": or compile the serial port driver as module and\n");
printk(KERN_WARNING LIRC_DRIVER_NAME
": make sure this module is loaded first\n");
return(-EBUSY);
}
hardware_init_port();
/* Initialize pulse/space widths */
init_timing_params(duty_cycle, freq);
/* If pin is high, then this must be an active low receiver. */
if(sense==-1)
{
/* wait 1/2 sec for the power supply */
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(HZ/2);
/* probe 9 times every 0.04s, collect "votes" for
active high/low */
nlow = 0;
nhigh = 0;
for(i = 0; i < 9; i ++)
{
if (sinp(UART_MSR) & hardware[type].signal_pin)
{
nlow++;
}
else
{
nhigh++;
}
schedule_timeout(HZ/25);
}
sense = (nlow >= nhigh ? 1 : 0);
printk(KERN_INFO LIRC_DRIVER_NAME ": auto-detected active "
"%s receiver\n",sense ? "low":"high");
}
else
{
printk(KERN_INFO LIRC_DRIVER_NAME ": Manually using active "
"%s receiver\n",sense ? "low":"high");
};
return 0;
}
