| #ifndef DEVICE_PNP_H |
| #define DEVICE_PNP_H |
| |
| #include <stdint.h> |
| #include <rules.h> |
| #include <device/device.h> |
| #include <device/pnp_def.h> |
| #include <arch/io.h> |
| |
| #ifndef __SIMPLE_DEVICE__ |
| |
| /* Primitive PNP resource manipulation */ |
| void pnp_write_config(device_t dev, u8 reg, u8 value); |
| u8 pnp_read_config(device_t dev, u8 reg); |
| void pnp_set_logical_device(device_t dev); |
| void pnp_set_enable(device_t dev, int enable); |
| int pnp_read_enable(device_t dev); |
| void pnp_set_iobase(device_t dev, u8 index, u16 iobase); |
| void pnp_set_irq(device_t dev, u8 index, u8 irq); |
| void pnp_set_drq(device_t dev, u8 index, u8 drq); |
| |
| /* PNP device operations */ |
| void pnp_read_resources(device_t dev); |
| void pnp_set_resources(device_t dev); |
| void pnp_enable_resources(device_t dev); |
| void pnp_enable(device_t dev); |
| void pnp_alt_enable(device_t dev); |
| |
| extern struct device_operations pnp_ops; |
| |
| /* PNP helper operations */ |
| |
| struct io_info { |
| unsigned mask, set; |
| }; |
| |
| struct pnp_info { |
| struct device_operations *ops; |
| unsigned int function; /* Must be at least 16 bits (virtual LDNs)! */ |
| unsigned int flags; |
| #define PNP_IO0 0x001 |
| #define PNP_IO1 0x002 |
| #define PNP_IO2 0x004 |
| #define PNP_IO3 0x008 |
| #define PNP_IRQ0 0x010 |
| #define PNP_IRQ1 0x020 |
| #define PNP_DRQ0 0x040 |
| #define PNP_DRQ1 0x080 |
| #define PNP_EN 0x100 |
| #define PNP_MSC0 0x200 |
| #define PNP_MSC1 0x400 |
| #define PNP_MSC4 0x800 |
| #define PNP_MSC10 0x1000 |
| struct io_info io0, io1, io2, io3; |
| }; |
| struct resource *pnp_get_resource(device_t dev, unsigned index); |
| void pnp_enable_devices(struct device *dev, struct device_operations *ops, |
| unsigned int functions, struct pnp_info *info); |
| |
| struct pnp_mode_ops { |
| void (*enter_conf_mode)(device_t dev); |
| void (*exit_conf_mode)(device_t dev); |
| }; |
| void pnp_enter_conf_mode(device_t dev); |
| void pnp_exit_conf_mode(device_t dev); |
| |
| /* PNP indexed I/O operations */ |
| |
| /* |
| * u8 pnp_read_index(u16 port, u8 reg) |
| * Description: |
| * This routine reads indexed I/O registers. The reg byte is written |
| * to the index register at I/O address = port. The result is then |
| * read from the data register at I/O address = port + 1. |
| * |
| * Parameters: |
| * @param[in] u16 port = The I/O address of the port index register. |
| * @param[in] u8 reg = The offset within the indexed space. |
| * @param[out] u8 result = The value read back from the data register. |
| */ |
| static inline u8 pnp_read_index(u16 port, u8 reg) |
| { |
| outb(reg, port); |
| return inb(port + 1); |
| } |
| |
| /* |
| * void pnp_write_index(u16 port, u8 reg, u8 value) |
| * Description: |
| * This routine writes indexed I/O registers. The reg byte is written |
| * to the index register at I/O address = port. The value byte is then |
| * written to the data register at I/O address = port + 1. |
| * |
| * Parameters: |
| * @param[in] u16 port = The address of the port index register. |
| * @param[in] u8 reg = The offset within the indexed space. |
| * @param[in] u8 value = The value to be written to the data register. |
| */ |
| static inline void pnp_write_index(u16 port, u8 reg, u8 value) |
| { |
| outb(reg, port); |
| outb(value, port + 1); |
| } |
| |
| #endif /* ! __SIMPLE_DEVICE__ */ |
| #endif /* DEVICE_PNP_H */ |