mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-28 22:39:23 +02:00
796a9d1091
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15242 3c298f89-4303-0410-b956-a3cf2f4a3e73
433 lines
11 KiB
C
433 lines
11 KiB
C
/*
|
|
* Linux-specific abstractions to gain some independence from linux kernel versions.
|
|
* Pave over some 2.2 versus 2.4 versus 2.6 kernel differences.
|
|
*
|
|
* Copyright 2007, Broadcom Corporation
|
|
* All Rights Reserved.
|
|
*
|
|
* THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
|
|
* KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
|
|
* SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
|
|
* FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
#ifndef _linuxver_h_
|
|
#define _linuxver_h_
|
|
|
|
#include <linux/version.h>
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 0))
|
|
#include <linux/config.h>
|
|
#else
|
|
#include <linux/autoconf.h>
|
|
#endif
|
|
#include <linux/module.h>
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 3, 0))
|
|
/* __NO_VERSION__ must be defined for all linkables except one in 2.2 */
|
|
#ifdef __UNDEF_NO_VERSION__
|
|
#undef __NO_VERSION__
|
|
#else
|
|
#define __NO_VERSION__
|
|
#endif
|
|
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2, 3, 0) */
|
|
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)
|
|
#define module_param(_name_, _type_, _perm_) MODULE_PARM(_name_, "i")
|
|
#define module_param_string(_name_, _string_, _size_, _perm_) \
|
|
MODULE_PARM(_string_, "c" __MODULE_STRING(_size_))
|
|
#endif
|
|
|
|
/* linux/malloc.h is deprecated, use linux/slab.h instead. */
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 4, 9))
|
|
#include <linux/malloc.h>
|
|
#else
|
|
#include <linux/slab.h>
|
|
#endif
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/init.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/string.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/netdevice.h>
|
|
#include <asm/io.h>
|
|
|
|
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 41))
|
|
#include <linux/workqueue.h>
|
|
#else
|
|
#include <linux/tqueue.h>
|
|
#ifndef work_struct
|
|
#define work_struct tq_struct
|
|
#endif
|
|
#ifndef INIT_WORK
|
|
#define INIT_WORK(_work, _func, _data) INIT_TQUEUE((_work), (_func), (_data))
|
|
#endif
|
|
#ifndef schedule_work
|
|
#define schedule_work(_work) schedule_task((_work))
|
|
#endif
|
|
#ifndef flush_scheduled_work
|
|
#define flush_scheduled_work() flush_scheduled_tasks()
|
|
#endif
|
|
#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 41) */
|
|
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 20)
|
|
#define MY_INIT_WORK(_work, _func, _data) INIT_WORK(_work, _func)
|
|
#else
|
|
#define MY_INIT_WORK(_work, _func, _data) INIT_WORK(_work, _func, _data)
|
|
typedef void (*work_func_t)(void *work);
|
|
#endif /* < 2.6.20 */
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 0))
|
|
/* Some distributions have their own 2.6.x compatibility layers */
|
|
#ifndef IRQ_NONE
|
|
typedef void irqreturn_t;
|
|
#define IRQ_NONE
|
|
#define IRQ_HANDLED
|
|
#define IRQ_RETVAL(x)
|
|
#endif
|
|
#else
|
|
typedef irqreturn_t(*FN_ISR) (int irq, void *dev_id, struct pt_regs *ptregs);
|
|
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 0) */
|
|
|
|
#if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE)
|
|
|
|
#include <pcmcia/version.h>
|
|
#include <pcmcia/cs_types.h>
|
|
#include <pcmcia/cs.h>
|
|
#include <pcmcia/cistpl.h>
|
|
#include <pcmcia/cisreg.h>
|
|
#include <pcmcia/ds.h>
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 69))
|
|
/* In 2.5 (as of 2.5.69 at least) there is a cs_error exported which
|
|
* does this, but it's not in 2.4 so we do our own for now.
|
|
*/
|
|
static inline void
|
|
cs_error(client_handle_t handle, int func, int ret)
|
|
{
|
|
error_info_t err = { func, ret };
|
|
CardServices(ReportError, handle, &err);
|
|
}
|
|
#endif
|
|
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 15))
|
|
|
|
typedef struct pcmcia_device dev_link_t;
|
|
|
|
#endif
|
|
|
|
#endif /* CONFIG_PCMCIA */
|
|
|
|
#ifndef __exit
|
|
#define __exit
|
|
#endif
|
|
#ifndef __devexit
|
|
#define __devexit
|
|
#endif
|
|
#ifndef __devinit
|
|
#define __devinit __init
|
|
#endif
|
|
#ifndef __devinitdata
|
|
#define __devinitdata
|
|
#endif
|
|
#ifndef __devexit_p
|
|
#define __devexit_p(x) x
|
|
#endif
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 4, 0))
|
|
|
|
#define pci_get_drvdata(dev) (dev)->sysdata
|
|
#define pci_set_drvdata(dev, value) (dev)->sysdata = (value)
|
|
|
|
/*
|
|
* New-style (2.4.x) PCI/hot-pluggable PCI/CardBus registration
|
|
*/
|
|
|
|
struct pci_device_id {
|
|
unsigned int vendor, device; /* Vendor and device ID or PCI_ANY_ID */
|
|
unsigned int subvendor, subdevice; /* Subsystem ID's or PCI_ANY_ID */
|
|
unsigned int class, class_mask; /* (class,subclass,prog-if) triplet */
|
|
unsigned long driver_data; /* Data private to the driver */
|
|
};
|
|
|
|
struct pci_driver {
|
|
struct list_head node;
|
|
char *name;
|
|
const struct pci_device_id *id_table; /* NULL if wants all devices */
|
|
int (*probe)(struct pci_dev *dev,
|
|
const struct pci_device_id *id); /* New device inserted */
|
|
void (*remove)(struct pci_dev *dev); /* Device removed (NULL if not a hot-plug
|
|
* capable driver)
|
|
*/
|
|
void (*suspend)(struct pci_dev *dev); /* Device suspended */
|
|
void (*resume)(struct pci_dev *dev); /* Device woken up */
|
|
};
|
|
|
|
#define MODULE_DEVICE_TABLE(type, name)
|
|
#define PCI_ANY_ID (~0)
|
|
|
|
/* compatpci.c */
|
|
#define pci_module_init pci_register_driver
|
|
extern int pci_register_driver(struct pci_driver *drv);
|
|
extern void pci_unregister_driver(struct pci_driver *drv);
|
|
|
|
#endif /* PCI registration */
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 2, 18))
|
|
#ifdef MODULE
|
|
#define module_init(x) int init_module(void) { return x(); }
|
|
#define module_exit(x) void cleanup_module(void) { x(); }
|
|
#else
|
|
#define module_init(x) __initcall(x);
|
|
#define module_exit(x) __exitcall(x);
|
|
#endif
|
|
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2, 2, 18) */
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 3, 48))
|
|
#define list_for_each(pos, head) \
|
|
for (pos = (head)->next; pos != (head); pos = pos->next)
|
|
#endif
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 3, 13))
|
|
#define pci_resource_start(dev, bar) ((dev)->base_address[(bar)])
|
|
#elif (LINUX_VERSION_CODE < KERNEL_VERSION(2, 3, 44))
|
|
#define pci_resource_start(dev, bar) ((dev)->resource[(bar)].start)
|
|
#endif
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 3, 23))
|
|
#define pci_enable_device(dev) do { } while (0)
|
|
#endif
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 3, 14))
|
|
#define net_device device
|
|
#endif
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 3, 42))
|
|
|
|
/*
|
|
* DMA mapping
|
|
*
|
|
* See linux/Documentation/DMA-mapping.txt
|
|
*/
|
|
|
|
#ifndef PCI_DMA_TODEVICE
|
|
#define PCI_DMA_TODEVICE 1
|
|
#define PCI_DMA_FROMDEVICE 2
|
|
#endif
|
|
|
|
typedef u32 dma_addr_t;
|
|
|
|
/* Pure 2^n version of get_order */
|
|
static inline int get_order(unsigned long size)
|
|
{
|
|
int order;
|
|
|
|
size = (size-1) >> (PAGE_SHIFT-1);
|
|
order = -1;
|
|
do {
|
|
size >>= 1;
|
|
order++;
|
|
} while (size);
|
|
return order;
|
|
}
|
|
|
|
static inline void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
|
|
dma_addr_t *dma_handle)
|
|
{
|
|
void *ret;
|
|
int gfp = GFP_ATOMIC | GFP_DMA;
|
|
|
|
ret = (void *)__get_free_pages(gfp, get_order(size));
|
|
|
|
if (ret != NULL) {
|
|
memset(ret, 0, size);
|
|
*dma_handle = virt_to_bus(ret);
|
|
}
|
|
return ret;
|
|
}
|
|
static inline void pci_free_consistent(struct pci_dev *hwdev, size_t size,
|
|
void *vaddr, dma_addr_t dma_handle)
|
|
{
|
|
free_pages((unsigned long)vaddr, get_order(size));
|
|
}
|
|
#ifdef ILSIM
|
|
extern uint pci_map_single(void *dev, void *va, uint size, int direction);
|
|
extern void pci_unmap_single(void *dev, uint pa, uint size, int direction);
|
|
#else
|
|
#define pci_map_single(cookie, address, size, dir) virt_to_bus(address)
|
|
#define pci_unmap_single(cookie, address, size, dir)
|
|
#endif
|
|
|
|
#endif /* DMA mapping */
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 3, 43))
|
|
|
|
#define dev_kfree_skb_any(a) dev_kfree_skb(a)
|
|
#define netif_down(dev) do { (dev)->start = 0; } while (0)
|
|
|
|
/* pcmcia-cs provides its own netdevice compatibility layer */
|
|
#ifndef _COMPAT_NETDEVICE_H
|
|
|
|
/*
|
|
* SoftNet
|
|
*
|
|
* For pre-softnet kernels we need to tell the upper layer not to
|
|
* re-enter start_xmit() while we are in there. However softnet
|
|
* guarantees not to enter while we are in there so there is no need
|
|
* to do the netif_stop_queue() dance unless the transmit queue really
|
|
* gets stuck. This should also improve performance according to tests
|
|
* done by Aman Singla.
|
|
*/
|
|
|
|
#define dev_kfree_skb_irq(a) dev_kfree_skb(a)
|
|
#define netif_wake_queue(dev) \
|
|
do { clear_bit(0, &(dev)->tbusy); mark_bh(NET_BH); } while (0)
|
|
#define netif_stop_queue(dev) set_bit(0, &(dev)->tbusy)
|
|
|
|
static inline void netif_start_queue(struct net_device *dev)
|
|
{
|
|
dev->tbusy = 0;
|
|
dev->interrupt = 0;
|
|
dev->start = 1;
|
|
}
|
|
|
|
#define netif_queue_stopped(dev) (dev)->tbusy
|
|
#define netif_running(dev) (dev)->start
|
|
|
|
#endif /* _COMPAT_NETDEVICE_H */
|
|
|
|
#define netif_device_attach(dev) netif_start_queue(dev)
|
|
#define netif_device_detach(dev) netif_stop_queue(dev)
|
|
|
|
/* 2.4.x renamed bottom halves to tasklets */
|
|
#define tasklet_struct tq_struct
|
|
static inline void tasklet_schedule(struct tasklet_struct *tasklet)
|
|
{
|
|
queue_task(tasklet, &tq_immediate);
|
|
mark_bh(IMMEDIATE_BH);
|
|
}
|
|
|
|
static inline void tasklet_init(struct tasklet_struct *tasklet,
|
|
void (*func)(unsigned long),
|
|
unsigned long data)
|
|
{
|
|
tasklet->next = NULL;
|
|
tasklet->sync = 0;
|
|
tasklet->routine = (void (*)(void *))func;
|
|
tasklet->data = (void *)data;
|
|
}
|
|
#define tasklet_kill(tasklet) { do{} while (0); }
|
|
|
|
/* 2.4.x introduced del_timer_sync() */
|
|
#define del_timer_sync(timer) del_timer(timer)
|
|
|
|
#else
|
|
|
|
#define netif_down(dev)
|
|
|
|
#endif /* SoftNet */
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 4, 3))
|
|
|
|
/*
|
|
* Emit code to initialise a tq_struct's routine and data pointers
|
|
*/
|
|
#define PREPARE_TQUEUE(_tq, _routine, _data) \
|
|
do { \
|
|
(_tq)->routine = _routine; \
|
|
(_tq)->data = _data; \
|
|
} while (0)
|
|
|
|
/*
|
|
* Emit code to initialise all of a tq_struct
|
|
*/
|
|
#define INIT_TQUEUE(_tq, _routine, _data) \
|
|
do { \
|
|
INIT_LIST_HEAD(&(_tq)->list); \
|
|
(_tq)->sync = 0; \
|
|
PREPARE_TQUEUE((_tq), (_routine), (_data)); \
|
|
} while (0)
|
|
|
|
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2, 4, 3) */
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 4, 6))
|
|
|
|
/* Power management related routines */
|
|
|
|
static inline int
|
|
pci_save_state(struct pci_dev *dev, u32 *buffer)
|
|
{
|
|
int i;
|
|
if (buffer) {
|
|
for (i = 0; i < 16; i++)
|
|
pci_read_config_dword(dev, i * 4, &buffer[i]);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
pci_restore_state(struct pci_dev *dev, u32 *buffer)
|
|
{
|
|
int i;
|
|
|
|
if (buffer) {
|
|
for (i = 0; i < 16; i++)
|
|
pci_write_config_dword(dev, i * 4, buffer[i]);
|
|
}
|
|
/*
|
|
* otherwise, write the context information we know from bootup.
|
|
* This works around a problem where warm-booting from Windows
|
|
* combined with a D3(hot)->D0 transition causes PCI config
|
|
* header data to be forgotten.
|
|
*/
|
|
else {
|
|
for (i = 0; i < 6; i ++)
|
|
pci_write_config_dword(dev,
|
|
PCI_BASE_ADDRESS_0 + (i * 4),
|
|
pci_resource_start(dev, i));
|
|
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#endif /* PCI power management */
|
|
|
|
/* Old cp0 access macros deprecated in 2.4.19 */
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 4, 19))
|
|
#define read_c0_count() read_32bit_cp0_register(CP0_COUNT)
|
|
#endif
|
|
|
|
/* Module refcount handled internally in 2.6.x */
|
|
#ifndef SET_MODULE_OWNER
|
|
#define SET_MODULE_OWNER(dev) do {} while (0)
|
|
#define OLD_MOD_INC_USE_COUNT MOD_INC_USE_COUNT
|
|
#define OLD_MOD_DEC_USE_COUNT MOD_DEC_USE_COUNT
|
|
#else
|
|
#define OLD_MOD_INC_USE_COUNT do {} while (0)
|
|
#define OLD_MOD_DEC_USE_COUNT do {} while (0)
|
|
#endif
|
|
|
|
#ifndef SET_NETDEV_DEV
|
|
#define SET_NETDEV_DEV(net, pdev) do {} while (0)
|
|
#endif
|
|
|
|
#ifndef HAVE_FREE_NETDEV
|
|
#define free_netdev(dev) kfree(dev)
|
|
#endif
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 0))
|
|
/* struct packet_type redefined in 2.6.x */
|
|
#define af_packet_priv data
|
|
#endif
|
|
|
|
/* suspend args */
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
|
|
#define DRV_SUSPEND_STATE_TYPE pm_message_t
|
|
#else
|
|
#define DRV_SUSPEND_STATE_TYPE uint32
|
|
#endif
|
|
|
|
#endif /* _linuxver_h_ */
|