/* * 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. * * $Id: linuxver.h,v 1.1.1.1 2008/07/21 09:14:16 james26_jang Exp $ */ #ifndef _linuxver_h_ #define _linuxver_h_ #include #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 0)) #include #else #include #endif #include #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 #else #include #endif #include #include #include #include #include #include #include #include #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 41)) #include #else #include #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 #include #include #include #include #include #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_ */