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@ -30,644 +30,269 @@ |
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#include <asm/danube/danube_ioctl.h> |
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#define DANUBE_PORT_OUT_REG 0x00000010 |
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#define DANUBE_PORT_IN_REG 0x00000014 |
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#define DANUBE_PORT_DIR_REG 0x00000018 |
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#define DANUBE_PORT_ALTSEL0_REG 0x0000001C |
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#define DANUBE_PORT_ALTSEL1_REG 0x00000020 |
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#define DANUBE_PORT_OD_REG 0x00000024 |
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#define DANUBE_PORT_STOFF_REG 0x00000028 |
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#define DANUBE_PORT_PUDSEL_REG 0x0000002C |
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#define DANUBE_PORT_PUDEN_REG 0x00000030 |
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#define PORT_MODULE_ID 0xff |
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#define PORT_WRITE_REG(reg, value) \ |
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*((volatile u32*)(reg)) = (u32)value; |
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#define PORT_READ_REG(reg, value) \ |
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value = (u32)*((volatile u32*)(reg)); |
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#define PORT_IOC_CALL(ret,port,pin,func) \ |
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ret=danube_port_reserve_pin(port,pin,PORT_MODULE_ID); \
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if (ret == 0) ret=func(port,pin,PORT_MODULE_ID); \
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if (ret == 0) ret=danube_port_free_pin(port,pin,PORT_MODULE_ID); |
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#define MAX_PORTS 2 // Number of ports in system
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#define PINS_PER_PORT 16 // Number of available pins per port
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#define MAX_PORTS 2 |
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#define PINS_PER_PORT 16 |
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static int port_major = 0; |
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static int danube_port_pin_usage[MAX_PORTS][PINS_PER_PORT]; // Map for pin usage
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static u32 danube_port_bases[MAX_PORTS] |
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= { DANUBE_GPIO_BASE_ADDR, DANUBE_GPIO_P0_PUDEN }; |
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static unsigned int danube_gpio_major = 0; |
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/* TODO do we need this ? */ |
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static struct semaphore port_sem; |
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/* TODO do we really need this ? return in a define is forbidden by coding style */ |
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#define DANUBE_GPIO_SANITY {if (port > MAX_PORTS || pin > PINS_PER_PORT) return -EINVAL; } |
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int |
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danube_port_reserve_pin (int port, int pin, int module_id) |
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danube_port_reserve_pin (unsigned int port, unsigned int pin) |
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{ |
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if (port < 0 || pin < 0) |
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return -EINVAL; |
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if (port > MAX_PORTS || pin > PINS_PER_PORT) |
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return -EINVAL; |
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if (danube_port_pin_usage[port][pin] == 0) { |
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danube_port_pin_usage[port][pin] = module_id; |
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} |
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else { |
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return -EBUSY; |
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} |
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DANUBE_GPIO_SANITY; |
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printk("%s : call to obseleted function\n", __func__); |
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return 0; |
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} |
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EXPORT_SYMBOL(danube_port_reserve_pin); |
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int |
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danube_port_free_pin (int port, int pin, int module_id) |
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danube_port_free_pin (unsigned int port, unsigned int pin) |
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{ |
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if (port < 0 || pin < 0) |
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return -EINVAL; |
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if (port > MAX_PORTS || pin > PINS_PER_PORT) |
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return -EINVAL; |
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if (danube_port_pin_usage[port][pin] != module_id) |
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return -EBUSY; |
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danube_port_pin_usage[port][pin] = 0; |
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DANUBE_GPIO_SANITY; |
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printk("%s : call to obseleted function\n", __func__); |
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return 0; |
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} |
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EXPORT_SYMBOL(danube_port_free_pin); |
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int |
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danube_port_set_open_drain (int port, int pin, int module_id) |
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danube_port_set_open_drain (unsigned int port, unsigned int pin) |
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{ |
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u32 reg; |
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if (port < 0 || pin < 0) |
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return -EINVAL; |
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if (port > MAX_PORTS || pin > PINS_PER_PORT) |
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return -EINVAL; |
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if (danube_port_pin_usage[port][pin] != module_id) |
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return -EBUSY; |
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PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_OD_REG, reg); |
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reg |= (1 << pin); |
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PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_OD_REG, reg); |
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DANUBE_GPIO_SANITY; |
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writel(readl(DANUBE_GPIO_P0_OD + (port * 0x30)) | (1 << pin), DANUBE_GPIO_P0_OD); |
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return 0; |
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} |
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EXPORT_SYMBOL(danube_port_set_open_drain); |
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int |
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danube_port_clear_open_drain (int port, int pin, int module_id) |
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danube_port_clear_open_drain (unsigned int port, unsigned int pin) |
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{ |
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u32 reg; |
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if (port < 0 || pin < 0) |
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return -EINVAL; |
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if (port > MAX_PORTS || pin > PINS_PER_PORT) |
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return -EINVAL; |
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if (danube_port_pin_usage[port][pin] != module_id) |
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return -EBUSY; |
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PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_OD_REG, reg); |
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reg &= ~(1 << pin); |
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PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_OD_REG, reg); |
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DANUBE_GPIO_SANITY; |
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writel(readl(DANUBE_GPIO_P0_OD + (port * 0x30)) & ~(1 << pin), DANUBE_GPIO_P0_OD); |
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return 0; |
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} |
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EXPORT_SYMBOL(danube_port_clear_open_drain); |
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int |
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danube_port_set_pudsel (int port, int pin, int module_id) |
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danube_port_set_pudsel (unsigned int port, unsigned int pin) |
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{ |
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u32 reg; |
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if (port < 0 || pin < 0) |
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return -EINVAL; |
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if (port > MAX_PORTS || pin > PINS_PER_PORT) |
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return -EINVAL; |
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if (danube_port_pin_usage[port][pin] != module_id) |
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return -EBUSY; |
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PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_PUDSEL_REG, reg); |
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reg |= (1 << pin); |
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PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_PUDSEL_REG, |
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reg); |
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DANUBE_GPIO_SANITY; |
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writel(readl(DANUBE_GPIO_P0_PUDSEL + (port * 0x30)) | (1 << pin), DANUBE_GPIO_P0_PUDSEL); |
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return 0; |
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} |
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EXPORT_SYMBOL(danube_port_set_pudsel); |
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int |
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danube_port_clear_pudsel (int port, int pin, int module_id) |
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danube_port_clear_pudsel (unsigned int port, unsigned int pin) |
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{ |
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u32 reg; |
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if (port < 0 || pin < 0) |
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return -EINVAL; |
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if (port > MAX_PORTS || pin > PINS_PER_PORT) |
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return -EINVAL; |
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if (danube_port_pin_usage[port][pin] != module_id) |
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return -EBUSY; |
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PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_PUDSEL_REG, reg); |
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reg &= ~(1 << pin); |
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PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_PUDSEL_REG, |
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reg); |
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DANUBE_GPIO_SANITY; |
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writel(readl(DANUBE_GPIO_P0_PUDSEL + (port * 0x30)) & ~(1 << pin), DANUBE_GPIO_P0_PUDSEL); |
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return 0; |
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} |
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EXPORT_SYMBOL(danube_port_clear_pudsel); |
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int |
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danube_port_set_puden (int port, int pin, int module_id) |
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danube_port_set_puden (unsigned int port, unsigned int pin) |
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{ |
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u32 reg; |
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if (port < 0 || pin < 0) |
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return -EINVAL; |
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if (port > MAX_PORTS || pin > PINS_PER_PORT) |
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return -EINVAL; |
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if (danube_port_pin_usage[port][pin] != module_id) |
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return -EBUSY; |
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PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_PUDEN_REG, reg); |
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reg |= (1 << pin); |
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PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_PUDEN_REG, reg); |
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DANUBE_GPIO_SANITY; |
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writel(readl(DANUBE_GPIO_P0_PUDEN + (port * 0x30)) | (1 << pin), DANUBE_GPIO_P0_PUDEN); |
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return 0; |
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} |
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EXPORT_SYMBOL(danube_port_set_puden); |
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int |
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danube_port_clear_puden (int port, int pin, int module_id) |
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danube_port_clear_puden (unsigned int port, unsigned int pin) |
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{ |
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u32 reg; |
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if (port < 0 || pin < 0) |
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return -EINVAL; |
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if (port > MAX_PORTS || pin > PINS_PER_PORT) |
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return -EINVAL; |
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if (danube_port_pin_usage[port][pin] != module_id) |
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return -EBUSY; |
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PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_PUDEN_REG, reg); |
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reg &= ~(1 << pin); |
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PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_PUDEN_REG, reg); |
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DANUBE_GPIO_SANITY; |
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writel(readl(DANUBE_GPIO_P0_PUDEN + (port * 0x30)) & ~(1 << pin), DANUBE_GPIO_P0_PUDEN); |
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return 0; |
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} |
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EXPORT_SYMBOL(danube_port_clear_puden); |
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int |
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danube_port_set_stoff (int port, int pin, int module_id) |
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danube_port_set_stoff (unsigned int port, unsigned int pin) |
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{ |
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u32 reg; |
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if (port < 0 || pin < 0) |
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return -EINVAL; |
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if (port > MAX_PORTS || pin > PINS_PER_PORT) |
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return -EINVAL; |
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if (danube_port_pin_usage[port][pin] != module_id) |
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return -EBUSY; |
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PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_STOFF_REG, reg); |
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reg |= (1 << pin); |
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PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_STOFF_REG, reg); |
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DANUBE_GPIO_SANITY; |
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writel(readl(DANUBE_GPIO_P0_STOFF + (port * 0x30)) | (1 << pin), DANUBE_GPIO_P0_STOFF); |
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return 0; |
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} |
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EXPORT_SYMBOL(danube_port_set_stoff); |
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int |
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danube_port_clear_stoff (int port, int pin, int module_id) |
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danube_port_clear_stoff (unsigned int port, unsigned int pin) |
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{ |
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u32 reg; |
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if (port < 0 || pin < 0) |
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return -EINVAL; |
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if (port > MAX_PORTS || pin > PINS_PER_PORT) |
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return -EINVAL; |
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if (danube_port_pin_usage[port][pin] != module_id) |
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return -EBUSY; |
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PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_STOFF_REG, reg); |
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reg &= ~(1 << pin); |
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PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_STOFF_REG, reg); |
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DANUBE_GPIO_SANITY; |
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writel(readl(DANUBE_GPIO_P0_STOFF + (port * 0x30)) & ~(1 << pin), DANUBE_GPIO_P0_STOFF); |
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return 0; |
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} |
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EXPORT_SYMBOL(danube_port_clear_stoff); |
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int |
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danube_port_set_dir_out (int port, int pin, int module_id) |
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danube_port_set_dir_out (unsigned int port, unsigned int pin) |
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{ |
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u32 reg; |
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if (port < 0 || pin < 0) |
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return -EINVAL; |
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if (port > MAX_PORTS || pin > PINS_PER_PORT) |
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return -EINVAL; |
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if (danube_port_pin_usage[port][pin] != module_id) |
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return -EBUSY; |
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PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_DIR_REG, reg); |
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reg |= (1 << pin); |
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PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_DIR_REG, reg); |
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DANUBE_GPIO_SANITY; |
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writel(readl(DANUBE_GPIO_P0_DIR + (port * 0x30)) | (1 << pin), DANUBE_GPIO_P0_DIR); |
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return 0; |
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} |
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EXPORT_SYMBOL(danube_port_set_dir_out); |
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int |
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danube_port_set_dir_in (int port, int pin, int module_id) |
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danube_port_set_dir_in (unsigned int port, unsigned int pin) |
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{ |
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u32 reg; |
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if (port < 0 || pin < 0) |
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return -EINVAL; |
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if (port > MAX_PORTS || pin > PINS_PER_PORT) |
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return -EINVAL; |
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if (danube_port_pin_usage[port][pin] != module_id) |
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return -EBUSY; |
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PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_DIR_REG, reg); |
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reg &= ~(1 << pin); |
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PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_DIR_REG, reg); |
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DANUBE_GPIO_SANITY; |
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|
|
writel(readl(DANUBE_GPIO_P0_DIR + (port * 0x30)) & ~(1 << pin), DANUBE_GPIO_P0_DIR); |
|
|
|
|
|
|
|
|
|
return 0; |
|
|
|
|
} |
|
|
|
|
EXPORT_SYMBOL(danube_port_set_dir_in); |
|
|
|
|
|
|
|
|
|
int |
|
|
|
|
danube_port_set_output (int port, int pin, int module_id) |
|
|
|
|
danube_port_set_output (unsigned int port, unsigned int pin) |
|
|
|
|
{ |
|
|
|
|
u32 reg; |
|
|
|
|
|
|
|
|
|
if (port < 0 || pin < 0) |
|
|
|
|
return -EINVAL; |
|
|
|
|
if (port > MAX_PORTS || pin > PINS_PER_PORT) |
|
|
|
|
return -EINVAL; |
|
|
|
|
|
|
|
|
|
if (danube_port_pin_usage[port][pin] != module_id) |
|
|
|
|
return -EBUSY; |
|
|
|
|
|
|
|
|
|
PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_OUT_REG, reg); |
|
|
|
|
reg |= (1 << pin); |
|
|
|
|
PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_OUT_REG, reg); |
|
|
|
|
DANUBE_GPIO_SANITY; |
|
|
|
|
writel(readl(DANUBE_GPIO_P0_OUT + (port * 0x30)) | (1 << pin), DANUBE_GPIO_P0_OUT); |
|
|
|
|
|
|
|
|
|
return 0; |
|
|
|
|
} |
|
|
|
|
EXPORT_SYMBOL(danube_port_set_output); |
|
|
|
|
|
|
|
|
|
int |
|
|
|
|
danube_port_clear_output (int port, int pin, int module_id) |
|
|
|
|
danube_port_clear_output (unsigned int port, unsigned int pin) |
|
|
|
|
{ |
|
|
|
|
u32 reg; |
|
|
|
|
|
|
|
|
|
if (port < 0 || pin < 0) |
|
|
|
|
return -EINVAL; |
|
|
|
|
if (port > MAX_PORTS || pin > PINS_PER_PORT) |
|
|
|
|
return -EINVAL; |
|
|
|
|
|
|
|
|
|
if (danube_port_pin_usage[port][pin] != module_id) |
|
|
|
|
return -EBUSY; |
|
|
|
|
|
|
|
|
|
PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_OUT_REG, reg); |
|
|
|
|
reg &= ~(1 << pin); |
|
|
|
|
PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_OUT_REG, reg); |
|
|
|
|
DANUBE_GPIO_SANITY; |
|
|
|
|
writel(readl(DANUBE_GPIO_P0_OUT + (port * 0x30)) & ~(1 << pin), DANUBE_GPIO_P0_OUT); |
|
|
|
|
|
|
|
|
|
return 0; |
|
|
|
|
} |
|
|
|
|
EXPORT_SYMBOL(danube_port_clear_output); |
|
|
|
|
|
|
|
|
|
int |
|
|
|
|
danube_port_get_input (int port, int pin, int module_id) |
|
|
|
|
danube_port_get_input (unsigned int port, unsigned int pin) |
|
|
|
|
{ |
|
|
|
|
u32 reg; |
|
|
|
|
|
|
|
|
|
if (port < 0 || pin < 0) |
|
|
|
|
return -EINVAL; |
|
|
|
|
if (port > MAX_PORTS || pin > PINS_PER_PORT) |
|
|
|
|
return -EINVAL; |
|
|
|
|
DANUBE_GPIO_SANITY; |
|
|
|
|
|
|
|
|
|
if (danube_port_pin_usage[port][pin] != module_id) |
|
|
|
|
return -EBUSY; |
|
|
|
|
|
|
|
|
|
PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_IN_REG, reg); |
|
|
|
|
reg &= (1 << pin); |
|
|
|
|
if (reg == 0x00) |
|
|
|
|
if (readl(DANUBE_GPIO_P0_IN + (port * 0x30)) & (1 << pin)) |
|
|
|
|
return 0; |
|
|
|
|
else |
|
|
|
|
return 1; |
|
|
|
|
} |
|
|
|
|
EXPORT_SYMBOL(danube_port_get_input); |
|
|
|
|
|
|
|
|
|
int |
|
|
|
|
danube_port_set_altsel0 (int port, int pin, int module_id) |
|
|
|
|
danube_port_set_altsel0 (unsigned int port, unsigned int pin) |
|
|
|
|
{ |
|
|
|
|
u32 reg; |
|
|
|
|
|
|
|
|
|
if (port < 0 || pin < 0) |
|
|
|
|
return -EINVAL; |
|
|
|
|
if (port > MAX_PORTS || pin > PINS_PER_PORT) |
|
|
|
|
return -EINVAL; |
|
|
|
|
|
|
|
|
|
if (danube_port_pin_usage[port][pin] != module_id) |
|
|
|
|
return -EBUSY; |
|
|
|
|
|
|
|
|
|
PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_ALTSEL0_REG, |
|
|
|
|
reg); |
|
|
|
|
reg |= (1 << pin); |
|
|
|
|
PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_ALTSEL0_REG, |
|
|
|
|
reg); |
|
|
|
|
DANUBE_GPIO_SANITY; |
|
|
|
|
writel(readl(DANUBE_GPIO_P0_ALTSEL0 + (port * 0x30)) | (1 << pin), DANUBE_GPIO_P0_ALTSEL0); |
|
|
|
|
|
|
|
|
|
return 0; |
|
|
|
|
} |
|
|
|
|
EXPORT_SYMBOL(danube_port_set_altsel0); |
|
|
|
|
|
|
|
|
|
int |
|
|
|
|
danube_port_clear_altsel0 (int port, int pin, int module_id) |
|
|
|
|
danube_port_clear_altsel0 (unsigned int port, unsigned int pin) |
|
|
|
|
{ |
|
|
|
|
u32 reg; |
|
|
|
|
|
|
|
|
|
if (port < 0 || pin < 0) |
|
|
|
|
return -EINVAL; |
|
|
|
|
if (port > MAX_PORTS || pin > PINS_PER_PORT) |
|
|
|
|
return -EINVAL; |
|
|
|
|
|
|
|
|
|
if (danube_port_pin_usage[port][pin] != module_id) |
|
|
|
|
return -EBUSY; |
|
|
|
|
|
|
|
|
|
PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_ALTSEL0_REG, |
|
|
|
|
reg); |
|
|
|
|
reg &= ~(1 << pin); |
|
|
|
|
PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_ALTSEL0_REG, |
|
|
|
|
reg); |
|
|
|
|
DANUBE_GPIO_SANITY; |
|
|
|
|
writel(readl(DANUBE_GPIO_P0_ALTSEL0 + (port * 0x30)) & ~(1 << pin), DANUBE_GPIO_P0_ALTSEL0); |
|
|
|
|
|
|
|
|
|
return 0; |
|
|
|
|
} |
|
|
|
|
EXPORT_SYMBOL(danube_port_clear_altsel0); |
|
|
|
|
|
|
|
|
|
int |
|
|
|
|
danube_port_set_altsel1 (int port, int pin, int module_id) |
|
|
|
|
danube_port_set_altsel1 (unsigned int port, unsigned int pin) |
|
|
|
|
{ |
|
|
|
|
u32 reg; |
|
|
|
|
|
|
|
|
|
if (port < 0 || pin < 0) |
|
|
|
|
return -EINVAL; |
|
|
|
|
if (port > MAX_PORTS || pin > PINS_PER_PORT) |
|
|
|
|
return -EINVAL; |
|
|
|
|
|
|
|
|
|
if (danube_port_pin_usage[port][pin] != module_id) |
|
|
|
|
return -EBUSY; |
|
|
|
|
|
|
|
|
|
PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_ALTSEL1_REG, |
|
|
|
|
reg); |
|
|
|
|
reg |= (1 << pin); |
|
|
|
|
PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_ALTSEL1_REG, |
|
|
|
|
reg); |
|
|
|
|
DANUBE_GPIO_SANITY; |
|
|
|
|
writel(readl(DANUBE_GPIO_P0_ALTSEL1 + (port * 0x30)) | (1 << pin), DANUBE_GPIO_P0_ALTSEL1); |
|
|
|
|
|
|
|
|
|
return 0; |
|
|
|
|
} |
|
|
|
|
EXPORT_SYMBOL(danube_port_set_altsel1); |
|
|
|
|
|
|
|
|
|
int |
|
|
|
|
danube_port_clear_altsel1 (int port, int pin, int module_id) |
|
|
|
|
danube_port_clear_altsel1 (unsigned int port, unsigned int pin) |
|
|
|
|
{ |
|
|
|
|
u32 reg; |
|
|
|
|
|
|
|
|
|
if (port < 0 || pin < 0) |
|
|
|
|
return -EINVAL; |
|
|
|
|
if (port > MAX_PORTS || pin > PINS_PER_PORT) |
|
|
|
|
return -EINVAL; |
|
|
|
|
|
|
|
|
|
if (danube_port_pin_usage[port][pin] != module_id) |
|
|
|
|
return -EBUSY; |
|
|
|
|
|
|
|
|
|
PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_ALTSEL1_REG, |
|
|
|
|
reg); |
|
|
|
|
reg &= ~(1 << pin); |
|
|
|
|
PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_ALTSEL1_REG, |
|
|
|
|
reg); |
|
|
|
|
DANUBE_GPIO_SANITY; |
|
|
|
|
writel(readl(DANUBE_GPIO_P0_ALTSEL1 + (port * 0x30)) & ~(1 << pin), DANUBE_GPIO_P0_ALTSEL1); |
|
|
|
|
|
|
|
|
|
return 0; |
|
|
|
|
} |
|
|
|
|
EXPORT_SYMBOL(danube_port_clear_altsel1); |
|
|
|
|
|
|
|
|
|
int |
|
|
|
|
danube_port_read_procmem (char *buf, char **start, off_t offset, int count, |
|
|
|
|
int *eof, void *data) |
|
|
|
|
long danube_port_read_procmem_helper(char* tag, u32* in_reg, char *buf) |
|
|
|
|
{ |
|
|
|
|
long len = 0; |
|
|
|
|
int t = 0; |
|
|
|
|
u32 bit = 0; |
|
|
|
|
u32 reg = 0; |
|
|
|
|
|
|
|
|
|
len = sprintf (buf, "\nDanube Port Settings\n"); |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, |
|
|
|
|
" 3 2 1 0\n"); |
|
|
|
|
len = len + sprintf (buf + len, |
|
|
|
|
" 10987654321098765432109876543210\n"); |
|
|
|
|
len = len + sprintf (buf + len, |
|
|
|
|
"----------------------------------------\n"); |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP0-OUT: "); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P0_OUT, reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
u32 reg, bit = 0; |
|
|
|
|
unsigned int len, t; |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP1-OUT: "); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P1_OUT, reg); |
|
|
|
|
len = sprintf(buf, "\n%s: ", tag); |
|
|
|
|
reg = readl(in_reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
len = len + sprintf(buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
len = len + sprintf(buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP0-IN: "); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P0_IN, reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP1-IN: "); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P1_IN, reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP0-DIR: "); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P0_DIR, reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP1-DIR: "); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P1_DIR, reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP0-STO: "); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P0_STOFF, reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP1-STO: "); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P1_STOFF, reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP0-PUDE:"); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P0_PUDEN, reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP1-PUDE:"); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P1_PUDEN, reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP0-OD: "); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P0_OD, reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP1-OD: "); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P1_OD, reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP0-PUDS:"); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P0_PUDSEL, reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP1-PUDS:"); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P1_PUDSEL, reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP0_ALT0:"); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P0_ALTSEL0, reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP0_ALT1:"); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P0_ALTSEL1, reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP1_ALT0:"); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P1_ALTSEL0, reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
len = len + sprintf (buf + len, "\nP1_ALT1:"); |
|
|
|
|
PORT_READ_REG (DANUBE_GPIO_P1_ALTSEL1, reg); |
|
|
|
|
bit = 0x80000000; |
|
|
|
|
for (t = 0; t < 32; t++) { |
|
|
|
|
if ((reg & bit) > 0) |
|
|
|
|
len = len + sprintf (buf + len, "X"); |
|
|
|
|
else |
|
|
|
|
len = len + sprintf (buf + len, " "); |
|
|
|
|
bit = bit >> 1; |
|
|
|
|
} |
|
|
|
|
return len; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
int |
|
|
|
|
danube_port_read_procmem (char *buf, char **start, off_t offset, int count, |
|
|
|
|
int *eof, void *data) |
|
|
|
|
{ |
|
|
|
|
long len = sprintf (buf, "\nDanube Port Settings\n"); |
|
|
|
|
|
|
|
|
|
len += sprintf (buf + len, |
|
|
|
|
" 3 2 1 0\n"); |
|
|
|
|
len += sprintf (buf + len, |
|
|
|
|
" 10987654321098765432109876543210\n"); |
|
|
|
|
len += sprintf (buf + len, |
|
|
|
|
"----------------------------------------\n"); |
|
|
|
|
|
|
|
|
|
len += danube_port_read_procmem_helper("P0-OUT", DANUBE_GPIO_P0_OUT, &buf[len]); |
|
|
|
|
len += danube_port_read_procmem_helper("P1-OUT", DANUBE_GPIO_P1_OUT, &buf[len]); |
|
|
|
|
len += danube_port_read_procmem_helper("P0-IN ", DANUBE_GPIO_P0_IN, &buf[len]); |
|
|
|
|
len += danube_port_read_procmem_helper("P1-IN ", DANUBE_GPIO_P1_IN, &buf[len]); |
|
|
|
|
len += danube_port_read_procmem_helper("P0-DIR", DANUBE_GPIO_P0_DIR, &buf[len]); |
|
|
|
|
len += danube_port_read_procmem_helper("P1-DIR", DANUBE_GPIO_P1_DIR, &buf[len]); |
|
|
|
|
len += danube_port_read_procmem_helper("P0-STO ", DANUBE_GPIO_P0_STOFF, &buf[len]); |
|
|
|
|
len += danube_port_read_procmem_helper("P1-STO ", DANUBE_GPIO_P1_STOFF, &buf[len]); |
|
|
|
|
len += danube_port_read_procmem_helper("P0-PUDE", DANUBE_GPIO_P0_PUDEN, &buf[len]); |
|
|
|
|
len += danube_port_read_procmem_helper("P1-PUDE", DANUBE_GPIO_P1_PUDEN, &buf[len]); |
|
|
|
|
len += danube_port_read_procmem_helper("P0-OD ", DANUBE_GPIO_P0_OD, &buf[len]); |
|
|
|
|
len += danube_port_read_procmem_helper("P1-OD ", DANUBE_GPIO_P1_OD, &buf[len]); |
|
|
|
|
len += danube_port_read_procmem_helper("P0-PUDS", DANUBE_GPIO_P0_PUDSEL, &buf[len]); |
|
|
|
|
len += danube_port_read_procmem_helper("P1-PUDS", DANUBE_GPIO_P1_PUDSEL, &buf[len]); |
|
|
|
|
len += danube_port_read_procmem_helper("P0-ALT0", DANUBE_GPIO_P0_ALTSEL0, &buf[len]); |
|
|
|
|
len += danube_port_read_procmem_helper("P1-ALT0", DANUBE_GPIO_P1_ALTSEL0, &buf[len]); |
|
|
|
|
len += danube_port_read_procmem_helper("P0-ALT1", DANUBE_GPIO_P0_ALTSEL1, &buf[len]); |
|
|
|
|
len += danube_port_read_procmem_helper("P1-ALT1", DANUBE_GPIO_P1_ALTSEL1, &buf[len]); |
|
|
|
|
len = len + sprintf (buf + len, "\n\n"); |
|
|
|
|
|
|
|
|
|
*eof = 1; // No more data available
|
|
|
|
|
*eof = 1; |
|
|
|
|
|
|
|
|
|
return len; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
@ -814,62 +439,41 @@ danube_port_ioctl (struct inode *inode, struct file *filp, |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static struct file_operations port_fops = { |
|
|
|
|
open:danube_port_open, |
|
|
|
|
release:danube_port_release, |
|
|
|
|
ioctl:danube_port_ioctl |
|
|
|
|
.open = danube_port_open, |
|
|
|
|
.release = danube_port_release, |
|
|
|
|
.ioctl = danube_port_ioctl |
|
|
|
|
}; |
|
|
|
|
|
|
|
|
|
int __init |
|
|
|
|
danube_port_init (void) |
|
|
|
|
danube_gpio_init (void) |
|
|
|
|
{ |
|
|
|
|
int t = 0; |
|
|
|
|
int i = 0; |
|
|
|
|
int err = 0; |
|
|
|
|
printk ("Danube Port Initialization\n"); |
|
|
|
|
int retval = 0; |
|
|
|
|
|
|
|
|
|
sema_init (&port_sem, 1); |
|
|
|
|
|
|
|
|
|
/* Check ports for available pins */ |
|
|
|
|
for (t = 0; t < MAX_PORTS; t++) { |
|
|
|
|
for (i = 0; i < PINS_PER_PORT; i++) |
|
|
|
|
danube_port_pin_usage[t][i] = 0; |
|
|
|
|
danube_gpio_major = register_chrdev(0, "danube_gpio", &port_fops); |
|
|
|
|
if (!danube_gpio_major) |
|
|
|
|
{ |
|
|
|
|
printk("danube-port: Error! Could not register port device. #%d\n", danube_gpio_major); |
|
|
|
|
retval = -EINVAL; |
|
|
|
|
goto out; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/* register port device */ |
|
|
|
|
err = register_chrdev (0, "danube-port", &port_fops); |
|
|
|
|
if (err > 0) |
|
|
|
|
port_major = err; |
|
|
|
|
else { |
|
|
|
|
printk ("danube-port: Error! Could not register port device. #%d\n", err); |
|
|
|
|
return err; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/* Create proc file */ |
|
|
|
|
create_proc_read_entry ("driver/danube_port", 0, NULL, |
|
|
|
|
create_proc_read_entry("driver/danube_port", 0, NULL, |
|
|
|
|
danube_port_read_procmem, NULL); |
|
|
|
|
|
|
|
|
|
return 0; |
|
|
|
|
printk("registered danube gpio driver\n"); |
|
|
|
|
|
|
|
|
|
out: |
|
|
|
|
return retval; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
void __exit |
|
|
|
|
danube_gpio_exit (void) |
|
|
|
|
{ |
|
|
|
|
unregister_chrdev(danube_gpio_major, "danube_gpio"); |
|
|
|
|
remove_proc_entry("danube_wdt", NULL); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
module_init (danube_port_init); |
|
|
|
|
|
|
|
|
|
EXPORT_SYMBOL (danube_port_reserve_pin); |
|
|
|
|
EXPORT_SYMBOL (danube_port_free_pin); |
|
|
|
|
EXPORT_SYMBOL (danube_port_set_open_drain); |
|
|
|
|
EXPORT_SYMBOL (danube_port_clear_open_drain); |
|
|
|
|
EXPORT_SYMBOL (danube_port_set_pudsel); |
|
|
|
|
EXPORT_SYMBOL (danube_port_clear_pudsel); |
|
|
|
|
EXPORT_SYMBOL (danube_port_set_puden); |
|
|
|
|
EXPORT_SYMBOL (danube_port_clear_puden); |
|
|
|
|
EXPORT_SYMBOL (danube_port_set_stoff); |
|
|
|
|
EXPORT_SYMBOL (danube_port_clear_stoff); |
|
|
|
|
EXPORT_SYMBOL (danube_port_set_dir_out); |
|
|
|
|
EXPORT_SYMBOL (danube_port_set_dir_in); |
|
|
|
|
EXPORT_SYMBOL (danube_port_set_output); |
|
|
|
|
EXPORT_SYMBOL (danube_port_clear_output); |
|
|
|
|
EXPORT_SYMBOL (danube_port_get_input); |
|
|
|
|
|
|
|
|
|
EXPORT_SYMBOL (danube_port_set_altsel0); |
|
|
|
|
EXPORT_SYMBOL (danube_port_clear_altsel0); |
|
|
|
|
EXPORT_SYMBOL (danube_port_set_altsel1); |
|
|
|
|
EXPORT_SYMBOL (danube_port_clear_altsel1); |
|
|
|
|
module_init(danube_gpio_init); |
|
|
|
|
module_exit(danube_gpio_exit); |
|
|
|
|