auto   h MAJOR=4 MINOR=54 DEVNAME=tty54 * l4( (  fB- y_I|+" /* SPDX-License-Identifier: GPL-2.0-only */ /* * Industry-pack bus. * * Copyright (C) 2011-2012 CERN (www.cern.ch) * Author: Samuel Iglesias Gonsalvez */ #include #include #include #define IPACK_IDPROM_OFFSET_I 0x01 #define IPACK_IDPROM_OFFSET_P 0x03 #define IPACK_IDPROM_OFFSET_A 0x05 #define IPACK_IDPROM_OFFSET_C 0x07 #define IPACK_IDPROM_OFFSET_MANUFACTURER_ID 0x09 #define IPACK_IDPROM_OFFSET_MODEL 0x0B #define IPACK_IDPROM_OFFSET_REVISION 0x0D #define IPACK_IDPROM_OFFSET_RESERVED 0x0F #define IPACK_IDPROM_OFFSET_DRIVER_ID_L 0x11 #define IPACK_IDPROM_OFFSET_DRIVER_ID_H 0x13 #define IPACK_IDPROM_OFFSET_NUM_BYTES 0x15 #define IPACK_IDPROM_OFFSET_CRC 0x17 /* * IndustryPack Fromat, Vendor and Device IDs. */ /* ID section format versions */ #define IPACK_ID_VERSION_INVALID 0x00 #define IPACK_ID_VERSION_1 0x01 #define IPACK_ID_VERSION_2 0x02 /* Vendors and devices. Sort key: vendor first, device next. */ #define IPACK1_VENDOR_ID_RESERVED1 0x00 #define IPACK1_VENDOR_ID_RESERVED2 0xFF #define IPACK1_VENDOR_ID_UNREGISTRED01 0x01 #define IPACK1_VENDOR_ID_UNREGISTRED02 0x02 #define IPACK1_VENDOR_ID_UNREGISTRED03 0x03 #define IPACK1_VENDOR_ID_UNREGISTRED04 0x04 #define IPACK1_VENDOR_ID_UNREGISTRED05 0x05 #define IPACK1_VENDOR_ID_UNREGISTRED06 0x06 #define IPACK1_VENDOR_ID_UNREGISTRED07 0x07 #define IPACK1_VENDOR_ID_UNREGISTRED08 0x08 #define IPACK1_VENDOR_ID_UNREGISTRED09 0x09 #define IPACK1_VENDOR_ID_UNREGISTRED10 0x0A #define IPACK1_VENDOR_ID_UNREGISTRED11 0x0B #define IPACK1_VENDOR_ID_UNREGISTRED12 0x0C #define IPACK1_VENDOR_ID_UNREGISTRED13 0x0D #define IPACK1_VENDOR_ID_UNREGISTRED14 0x0E #define IPACK1_VENDOR_ID_UNREGISTRED15 0x0F #define IPACK1_VENDOR_ID_SBS 0xF0 #define IPACK1_DEVICE_ID_SBS_OCTAL_232 0x22 #define IPACK1_DEVICE_ID_SBS_OCTAL_422 0x2A #define IPACK1_DEVICE_ID_SBS_OCTAL_485 0x48 struct ipack_bus_ops; struct ipack_driver; enum ipack_space { IPACK_IO_SPACE = 0, IPACK_ID_SPACE, IPACK_INT_SPACE, IPACK_MEM8_SPACE, IPACK_MEM16_SPACE, /* Dummy for counting the number of entries. Must remain the last * entry */ IPACK_SPACE_COUNT, }; /** */ struct ipack_region { phys_addr_t start; size_t size; }; /** * struct ipack_device * * @slot: Slot where the device is plugged in the carrier board * @bus: ipack_bus_device where the device is plugged to. * @id_space: Virtual address to ID space. * @io_space: Virtual address to IO space. * @mem_space: Virtual address to MEM space. * @dev: device in kernel representation. * * Warning: Direct access to mapped memory is possible but the endianness * is not the same with PCI carrier or VME carrier. The endianness is managed * by the carrier board throught bus->ops. */ struct ipack_device { unsigned int slot; struct ipack_bus_device *bus; struct device dev; void (*release) (struct ipack_device *dev); struct ipack_region region[IPACK_SPACE_COUNT]; u8 *id; size_t id_avail; u32 id_vendor; u32 id_device; u8 id_format; unsigned int id_crc_correct:1; unsigned int speed_8mhz:1; unsigned int speed_32mhz:1; }; /** * struct ipack_driver_ops -- Callbacks to IPack device driver * * @probe: Probe function * @remove: Prepare imminent removal of the device. Services provided by the * device should be revoked. */ struct ipack_driver_ops { int (*probe) (struct ipack_device *dev); void (*remove) (struct ipack_device *dev); }; /** * struct ipack_driver -- Specific data to each ipack device driver * * @driver: Device driver kernel representation * @ops: Callbacks provided by the IPack device driver */ struct ipack_driver { struct device_driver driver; const struct ipack_device_id *id_table; const struct ipack_driver_ops *ops; }; /** * struct ipack_bus_ops - available operations on a bridge module * * @map_space: map IP address