diff options
Diffstat (limited to 'gpxe/src/include/gpxe/eisa.h')
-rw-r--r-- | gpxe/src/include/gpxe/eisa.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/gpxe/src/include/gpxe/eisa.h b/gpxe/src/include/gpxe/eisa.h new file mode 100644 index 00000000..e9d890e1 --- /dev/null +++ b/gpxe/src/include/gpxe/eisa.h @@ -0,0 +1,125 @@ +#ifndef EISA_H +#define EISA_H + +#include <stdint.h> +#include <gpxe/isa_ids.h> +#include <gpxe/device.h> +#include <gpxe/tables.h> + +/* + * EISA constants + * + */ + +#define EISA_MIN_SLOT (0x1) +#define EISA_MAX_SLOT (0xf) /* Must be 2^n - 1 */ +#define EISA_SLOT_BASE( n ) ( 0x1000 * (n) ) + +#define EISA_VENDOR_ID ( 0xc80 ) +#define EISA_PROD_ID ( 0xc82 ) +#define EISA_GLOBAL_CONFIG ( 0xc84 ) + +#define EISA_CMD_RESET ( 1 << 2 ) +#define EISA_CMD_ENABLE ( 1 << 0 ) + +/** An EISA device ID list entry */ +struct eisa_device_id { + /** Name */ + const char *name; + /** Manufacturer ID */ + uint16_t vendor_id; + /** Product ID */ + uint16_t prod_id; +}; + +/** An EISA device */ +struct eisa_device { + /** Generic device */ + struct device dev; + /** Slot number */ + unsigned int slot; + /** I/O address */ + uint16_t ioaddr; + /** Manufacturer ID */ + uint16_t vendor_id; + /** Product ID */ + uint16_t prod_id; + /** Driver for this device */ + struct eisa_driver *driver; + /** Driver-private data + * + * Use eisa_set_drvdata() and eisa_get_drvdata() to access + * this field. + */ + void *priv; + /** Driver name */ + const char *driver_name; +}; + +/** An EISA driver */ +struct eisa_driver { + /** EISA ID table */ + struct eisa_device_id *ids; + /** Number of entries in EISA ID table */ + unsigned int id_count; + /** + * Probe device + * + * @v eisa EISA device + * @v id Matching entry in ID table + * @ret rc Return status code + */ + int ( * probe ) ( struct eisa_device *eisa, + const struct eisa_device_id *id ); + /** + * Remove device + * + * @v eisa EISA device + */ + void ( * remove ) ( struct eisa_device *eisa ); +}; + +/** Declare an EISA driver */ +#define __eisa_driver __table ( struct eisa_driver, eisa_drivers, 01 ) + +extern void eisa_device_enabled ( struct eisa_device *eisa, int enabled ); + +/** + * Enable EISA device + * + * @v eisa EISA device + */ +static inline void enable_eisa_device ( struct eisa_device *eisa ) { + eisa_device_enabled ( eisa, 1 ); +} + +/** + * Disable EISA device + * + * @v eisa EISA device + */ +static inline void disable_eisa_device ( struct eisa_device *eisa ) { + eisa_device_enabled ( eisa, 0 ); +} + +/** + * Set EISA driver-private data + * + * @v eisa EISA device + * @v priv Private data + */ +static inline void eisa_set_drvdata ( struct eisa_device *eisa, void *priv ) { + eisa->priv = priv; +} + +/** + * Get EISA driver-private data + * + * @v eisa EISA device + * @ret priv Private data + */ +static inline void * eisa_get_drvdata ( struct eisa_device *eisa ) { + return eisa->priv; +} + +#endif /* EISA_H */ |