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Radioberry-2.x
kopia lustrzana https://github.com/pa3gsb/Radioberry-2.x
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move init to probe

pull/55/head
Paul 2024-03-15 14:30:16 +01:00
rodzic eec2a05ee4
commit 6c86e019ee
1 zmienionych plików z 24 dodań i 32 usunięć
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56
SBC/rpi-4/device_driver/driver/radioberry.c
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@ -230,6 +230,8 @@ static struct file_operations radioberry_fops = {
static int radioberry_probe(struct platform_device *pdev)
{
int result;
printk(KERN_INFO "inside %s function \n", __FUNCTION__);
if(!device_property_present(&pdev->dev, "rx-sample-gpio"))
printk("radioberry - Error! Device property 'rx-sample-gpio' not found!\n");
@ -254,7 +256,27 @@ static int radioberry_probe(struct platform_device *pdev)
return irqNumber;
}
printk(KERN_INFO "Radioberry: The rx samples pin is mapped to IRQ: %d\n", irqNumber);
return 0;
mutex_init(&radioberry_mutex);
init_waitqueue_head(&rx_sample_queue);
printk(KERN_INFO "Radioberry: The rx sample state is currently: %d\n", gpiod_get_value(gpio_desc));
// GPIO numbers and IRQ numbers are not the same! This function performs the mapping for us
// Get the IRQ number for the GPIO pin
// This next call requests an interrupt line
if (irqNumber > 0) {
result = request_irq(irqNumber,
(irq_handler_t) radioberry_irq_handler,
IRQF_TRIGGER_RISING, // Interrupt on rising edge RQF_TRIGGER_RISING
"radioberry_rx_irq", // Used in /proc/interrupts to identify the owner
NULL);
}
printk(KERN_INFO "Radioberry: The interrupt request result is: %d\n", result);
mutex_init(&spi_mutex);
initialize_rpi();
loading_radioberry_gateware(radioberryCharDevice);
initialize_firmware();
return result;
}
static int radioberry_remove(struct platform_device *pdev)
@ -312,37 +334,7 @@ static int __init radioberry_init(void) {
printk(KERN_ALERT "Failed to create the device\n");
return PTR_ERR(radioberryCharDevice);
}
printk(KERN_INFO "Radioberry char: device class created correctly\n");
mutex_init(&radioberry_mutex);
init_waitqueue_head(&rx_sample_queue);
printk(KERN_INFO "Radioberry: The rx sample state is currently: %d\n", gpiod_get_value(gpio_desc));
// GPIO numbers and IRQ numbers are not the same! This function performs the mapping for us
// Get the IRQ number for the GPIO pin
printk(KERN_INFO "Radioberry: The rx samples pin is mapped to IRQ: %d\n", irqNumber);
// This next call requests an interrupt line
if (irqNumber > 0) {
result = request_irq(irqNumber,
(irq_handler_t) radioberry_irq_handler,
IRQF_TRIGGER_RISING, // Interrupt on rising edge RQF_TRIGGER_RISING
"radioberry_rx_irq", // Used in /proc/interrupts to identify the owner
NULL);
}
printk(KERN_INFO "Radioberry: The interrupt request result is: %d\n", result);
mutex_init(&spi_mutex);
initialize_rpi();
loading_radioberry_gateware(radioberryCharDevice);
initialize_firmware();
printk(KERN_INFO "Radioberry char: device class created correctly\n");
return result;
}