1This file details changes in 2.6 which affect PCMCIA card driver authors: 2 3* New configuration loop helper (as of 2.6.28) 4 By calling pcmcia_loop_config(), a driver can iterate over all available 5 configuration options. During a driver's probe() phase, one doesn't need 6 to use pcmcia_get_{first,next}_tuple, pcmcia_get_tuple_data and 7 pcmcia_parse_tuple directly in most if not all cases. 8 9* New release helper (as of 2.6.17) 10 Instead of calling pcmcia_release_{configuration,io,irq,win}, all that's 11 necessary now is calling pcmcia_disable_device. As there is no valid 12 reason left to call pcmcia_release_io and pcmcia_release_irq, the 13 exports for them were removed. 14 15* Unify detach and REMOVAL event code, as well as attach and INSERTION 16 code (as of 2.6.16) 17 void (*remove) (struct pcmcia_device *dev); 18 int (*probe) (struct pcmcia_device *dev); 19 20* Move suspend, resume and reset out of event handler (as of 2.6.16) 21 int (*suspend) (struct pcmcia_device *dev); 22 int (*resume) (struct pcmcia_device *dev); 23 should be initialized in struct pcmcia_driver, and handle 24 (SUSPEND == RESET_PHYSICAL) and (RESUME == CARD_RESET) events 25 26* event handler initialization in struct pcmcia_driver (as of 2.6.13) 27 The event handler is notified of all events, and must be initialized 28 as the event() callback in the driver's struct pcmcia_driver. 29 30* pcmcia/version.h should not be used (as of 2.6.13) 31 This file will be removed eventually. 32 33* in-kernel device<->driver matching (as of 2.6.13) 34 PCMCIA devices and their correct drivers can now be matched in 35 kernelspace. See 'devicetable.txt' for details. 36 37* Device model integration (as of 2.6.11) 38 A struct pcmcia_device is registered with the device model core, 39 and can be used (e.g. for SET_NETDEV_DEV) by using 40 handle_to_dev(client_handle_t * handle). 41 42* Convert internal I/O port addresses to unsigned int (as of 2.6.11) 43 ioaddr_t should be replaced by unsigned int in PCMCIA card drivers. 44 45* irq_mask and irq_list parameters (as of 2.6.11) 46 The irq_mask and irq_list parameters should no longer be used in 47 PCMCIA card drivers. Instead, it is the job of the PCMCIA core to 48 determine which IRQ should be used. Therefore, link->irq.IRQInfo2 49 is ignored. 50 51* client->PendingEvents is gone (as of 2.6.11) 52 client->PendingEvents is no longer available. 53 54* client->Attributes are gone (as of 2.6.11) 55 client->Attributes is unused, therefore it is removed from all 56 PCMCIA card drivers 57 58* core functions no longer available (as of 2.6.11) 59 The following functions have been removed from the kernel source 60 because they are unused by all in-kernel drivers, and no external 61 driver was reported to rely on them: 62 pcmcia_get_first_region() 63 pcmcia_get_next_region() 64 pcmcia_modify_window() 65 pcmcia_set_event_mask() 66 pcmcia_get_first_window() 67 pcmcia_get_next_window() 68 69* device list iteration upon module removal (as of 2.6.10) 70 It is no longer necessary to iterate on the driver's internal 71 client list and call the ->detach() function upon module removal. 72 73* Resource management. (as of 2.6.8) 74 Although the PCMCIA subsystem will allocate resources for cards, 75 it no longer marks these resources busy. This means that driver 76 authors are now responsible for claiming your resources as per 77 other drivers in Linux. You should use request_region() to mark 78 your IO regions in-use, and request_mem_region() to mark your 79 memory regions in-use. The name argument should be a pointer to 80 your driver name. Eg, for pcnet_cs, name should point to the 81 string "pcnet_cs". 82 83* CardServices is gone 84 CardServices() in 2.4 is just a big switch statement to call various 85 services. In 2.6, all of those entry points are exported and called 86 directly (except for pcmcia_report_error(), just use cs_error() instead). 87 88* struct pcmcia_driver 89 You need to use struct pcmcia_driver and pcmcia_{un,}register_driver 90 instead of {un,}register_pccard_driver 91