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kernel/linux-imx6_3.14.28/include/linux/ioc3.h 3.14 KB
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  /*
   * This file is subject to the terms and conditions of the GNU General Public
   * License.  See the file "COPYING" in the main directory of this archive
   * for more details.
   *
   * Copyright (c) 2005 Stanislaw Skowronek <skylark@linux-mips.org>
   */
  
  #ifndef _LINUX_IOC3_H
  #define _LINUX_IOC3_H
  
  #include <asm/sn/ioc3.h>
  
  #define IOC3_MAX_SUBMODULES	32
  
  #define IOC3_CLASS_NONE		0
  #define IOC3_CLASS_BASE_IP27	1
  #define IOC3_CLASS_BASE_IP30	2
  #define IOC3_CLASS_MENET_123	3
  #define IOC3_CLASS_MENET_4	4
  #define IOC3_CLASS_CADDUO	5
  #define IOC3_CLASS_SERIAL	6
  
  /* One of these per IOC3 */
  struct ioc3_driver_data {
  	struct list_head list;
  	int id;				/* IOC3 sequence number */
  	/* PCI mapping */
  	unsigned long pma;		/* physical address */
  	struct ioc3 __iomem *vma;	/* pointer to registers */
  	struct pci_dev *pdev;		/* PCI device */
  	/* IRQ stuff */
  	int dual_irq;			/* set if separate IRQs are used */
  	int irq_io, irq_eth;		/* IRQ numbers */
  	/* GPIO magic */
  	spinlock_t gpio_lock;
  	unsigned int gpdr_shadow;
  	/* NIC identifiers */
  	char nic_part[32];
  	char nic_serial[16];
  	char nic_mac[6];
  	/* submodule set */
  	int class;
  	void *data[IOC3_MAX_SUBMODULES];	/* for submodule use */
  	int active[IOC3_MAX_SUBMODULES];	/* set if probe succeeds */
  	/* is_ir_lock must be held while
  	 * modifying sio_ie values, so
  	 * we can be sure that sio_ie is
  	 * not changing when we read it
  	 * along with sio_ir.
  	 */
  	spinlock_t ir_lock;	/* SIO_IE[SC] mod lock */
  };
  
  /* One per submodule */
  struct ioc3_submodule {
  	char *name;		/* descriptive submodule name */
  	struct module *owner;	/* owning kernel module */
  	int ethernet;		/* set for ethernet drivers */
  	int (*probe) (struct ioc3_submodule *, struct ioc3_driver_data *);
  	int (*remove) (struct ioc3_submodule *, struct ioc3_driver_data *);
  	int id;			/* assigned by IOC3, index for the "data" array */
  	/* IRQ stuff */
  	unsigned int irq_mask;	/* IOC3 IRQ mask, leave clear for Ethernet */
  	int reset_mask;		/* non-zero if you want the ioc3.c module to reset interrupts */
  	int (*intr) (struct ioc3_submodule *, struct ioc3_driver_data *, unsigned int);
  	/* private submodule data */
  	void *data;		/* assigned by submodule */
  };
  
  /**********************************
   * Functions needed by submodules *
   **********************************/
  
  #define IOC3_W_IES		0
  #define IOC3_W_IEC		1
  
  /* registers a submodule for all existing and future IOC3 chips */
  extern int ioc3_register_submodule(struct ioc3_submodule *);
  /* unregisters a submodule */
  extern void ioc3_unregister_submodule(struct ioc3_submodule *);
  /* enables IRQs indicated by irq_mask for a specified IOC3 chip */
  extern void ioc3_enable(struct ioc3_submodule *, struct ioc3_driver_data *, unsigned int);
  /* ackowledges specified IRQs */
  extern void ioc3_ack(struct ioc3_submodule *, struct ioc3_driver_data *, unsigned int);
  /* disables IRQs indicated by irq_mask for a specified IOC3 chip */
  extern void ioc3_disable(struct ioc3_submodule *, struct ioc3_driver_data *, unsigned int);
  /* atomically sets GPCR bits */
  extern void ioc3_gpcr_set(struct ioc3_driver_data *, unsigned int);
  /* general ireg writer */
  extern void ioc3_write_ireg(struct ioc3_driver_data *idd, uint32_t value, int reg);
  
  #endif