waterDataDiscreteRateMining memoryOperation.c 袁明明 commit at 2021-04-22

waterDataDiscreteRateMining/dataSharedMemory/memoryOperation.c

@@ -1223,3 +1223,106 @@ void bfin_reset_boot_spi_cs(unsigned short pin)
 {
 	unsigned short gpio = P_IDENT(pin);
 	port_setup(gpio, GPIO_USAGE);
+	gpio_array[gpio_bank(gpio)]->data_set = gpio_bit(gpio);
+	AWA_DUMMY_READ(data_set);
+	udelay(1);
+}
+
+#if defined(CONFIG_PROC_FS)
+static int gpio_proc_show(struct seq_file *m, void *v)
+{
+	int c, irq, gpio;
+
+	for (c = 0; c < MAX_RESOURCES; c++) {
+		irq = is_reserved(gpio_irq, c, 1);
+		gpio = is_reserved(gpio, c, 1);
+		if (!check_gpio(c) && (gpio || irq))
+			seq_printf(m, "GPIO_%d: \t%s%s \t\tGPIO %s\n", c,
+				 get_label(c), (gpio && irq) ? " *" : "",
+				 get_gpio_dir(c) ? "OUTPUT" : "INPUT");
+		else if (is_reserved(peri, c, 1))
+			seq_printf(m, "GPIO_%d: \t%s \t\tPeripheral\n", c, get_label(c));
+		else
+			continue;
+	}
+
+	return 0;
+}
+
+static int gpio_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, gpio_proc_show, NULL);
+}
+
+static const struct file_operations gpio_proc_ops = {
+	.open		= gpio_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static __init int gpio_register_proc(void)
+{
+	struct proc_dir_entry *proc_gpio;
+
+	proc_gpio = proc_create("gpio", 0, NULL, &gpio_proc_ops);
+	return proc_gpio == NULL;
+}
+__initcall(gpio_register_proc);
+#endif
+
+#ifdef CONFIG_GPIOLIB
+static int bfin_gpiolib_direction_input(struct gpio_chip *chip, unsigned gpio)
+{
+	return bfin_gpio_direction_input(gpio);
+}
+
+static int bfin_gpiolib_direction_output(struct gpio_chip *chip, unsigned gpio, int level)
+{
+	return bfin_gpio_direction_output(gpio, level);
+}
+
+static int bfin_gpiolib_get_value(struct gpio_chip *chip, unsigned gpio)
+{
+	return bfin_gpio_get_value(gpio);
+}
+
+static void bfin_gpiolib_set_value(struct gpio_chip *chip, unsigned gpio, int value)
+{
+	return bfin_gpio_set_value(gpio, value);
+}
+
+static int bfin_gpiolib_gpio_request(struct gpio_chip *chip, unsigned gpio)
+{
+	return bfin_gpio_request(gpio, chip->label);
+}
+
+static void bfin_gpiolib_gpio_free(struct gpio_chip *chip, unsigned gpio)
+{
+	return bfin_gpio_free(gpio);
+}
+
+static int bfin_gpiolib_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
+{
+	return gpio + GPIO_IRQ_BASE;
+}
+
+static struct gpio_chip bfin_chip = {
+	.label			= "BFIN-GPIO",
+	.direction_input	= bfin_gpiolib_direction_input,
+	.get			= bfin_gpiolib_get_value,
+	.direction_output	= bfin_gpiolib_direction_output,
+	.set			= bfin_gpiolib_set_value,
+	.request		= bfin_gpiolib_gpio_request,
+	.free			= bfin_gpiolib_gpio_free,
+	.to_irq			= bfin_gpiolib_gpio_to_irq,
+	.base			= 0,
+	.ngpio			= MAX_BLACKFIN_GPIOS,
+};
+
+static int __init bfin_gpiolib_setup(void)
+{
+	return gpiochip_add(&bfin_chip);
+}
+arch_initcall(bfin_gpiolib_setup);
+#endif