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pcmcia: re-work pcmcia_request_irq()

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Instead of the old pcmcia_request_irq() interface, drivers may now
choose between:

- calling request_irq/free_irq directly. Use the IRQ from *p_dev->irq.

- use pcmcia_request_irq(p_dev, handler_t); the PCMCIA core will
  clean up automatically on calls to pcmcia_disable_device() or
  device ejection.

- drivers still not capable of IRQF_SHARED (or not telling us so) may
  use the deprecated pcmcia_request_exclusive_irq() for the time
  being; they might receive a shared IRQ nonetheless.

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Signed-off-by: Dominik Brodowski <[email protected]>
This commit is contained in:
Dominik Brodowski 2010-03-07 12:21:16 +01:00
commit eb14120f74
58 changed files with 244 additions and 593 deletions
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7
include/pcmcia/cs.h
View file

@ -114,13 +114,6 @@ typedef struct io_req_t {
#define IO_DATA_PATH_WIDTH_16 0x08
#define IO_DATA_PATH_WIDTH_AUTO 0x10
/* For RequestIRQ and ReleaseIRQ */
typedef struct irq_req_t {
u_int Attributes;
u_int AssignedIRQ;
irq_handler_t Handler;
} irq_req_t;
/* Attributes for RequestIRQ and ReleaseIRQ */
#define IRQ_TYPE 0x03
#define IRQ_TYPE_EXCLUSIVE 0x00

11
include/pcmcia/ds.h
View file

@ -91,12 +91,11 @@ struct pcmcia_device {
dev_node_t *dev_node;
u_int open;
io_req_t io;
irq_req_t irq;
config_req_t conf;
window_handle_t win;
/* device setup */
unsigned int irq_v; /* do not use directly yet */
unsigned int irq;
/* Is the device suspended? */
u16 suspended:1;
@ -194,7 +193,13 @@ int pcmcia_access_configuration_register(struct pcmcia_device *p_dev,
/* device configuration */
int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req);
int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req);
int __must_check __deprecated
pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev,
irq_handler_t handler);
int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev,
irq_handler_t handler);
int pcmcia_request_configuration(struct pcmcia_device *p_dev,
config_req_t *req);