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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2009-11-08 17:24:46 +0100 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2009-11-28 18:03:14 +0100 |
| commit | 5fa9167a1bf5f5a4b7282f5e7ac56a4a5a1fa044 (patch) | |
| tree | 2bf23e13308ef683302ff5a92af0ae8bc37c1b60 /include/pcmcia | |
| parent | dd2e5a156525f11754d9b1e0583f6bb49c253d62 (diff) | |
| download | lwn-5fa9167a1bf5f5a4b7282f5e7ac56a4a5a1fa044.tar.gz lwn-5fa9167a1bf5f5a4b7282f5e7ac56a4a5a1fa044.zip | |
pcmcia: rework the irq_req_t typedef
Most of the irq_req_t typedef'd struct can be re-worked quite
easily:
(1) IRQInfo2 was unused in any case, so drop it.
(2) IRQInfo1 was used write-only, so drop it.
(3) Instance (private data to be passed to the IRQ handler):
Most PCMCIA drivers using pcmcia_request_irq() to actually
register an IRQ handler set the "dev_id" to the same pointer
as the "priv" pointer in struct pcmcia_device. Modify the two
exceptions (ipwireless, ibmtr_cs) to also work this waym and
set the IRQ handler's "dev_id" to p_dev->priv unconditionally.
(4) Handler is to be of type irq_handler_t.
(5) Handler != NULL already tells whether an IRQ handler is present.
Therefore, we do not need the IRQ_HANDLER_PRESENT flag in
irq_req_t.Attributes.
CC: netdev@vger.kernel.org
CC: linux-bluetooth@vger.kernel.org
CC: linux-ide@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-scsi@vger.kernel.org
CC: alsa-devel@alsa-project.org
CC: Jaroslav Kysela <perex@perex.cz>
CC: Jiri Kosina <jkosina@suse.cz>
CC: Karsten Keil <isdn@linux-pingi.de>
for the Bluetooth parts: Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'include/pcmcia')
| -rw-r--r-- | include/pcmcia/cs.h | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/include/pcmcia/cs.h b/include/pcmcia/cs.h index 904468a191ef..afc2bfb9e917 100644 --- a/include/pcmcia/cs.h +++ b/include/pcmcia/cs.h @@ -15,6 +15,10 @@ #ifndef _LINUX_CS_H #define _LINUX_CS_H +#ifdef __KERNEL__ +#include <linux/interrupt.h> +#endif + /* For AccessConfigurationRegister */ typedef struct conf_reg_t { u_char Function; @@ -111,11 +115,9 @@ typedef struct io_req_t { /* For RequestIRQ and ReleaseIRQ */ typedef struct irq_req_t { - u_int Attributes; - u_int AssignedIRQ; - u_int IRQInfo1, IRQInfo2; /* IRQInfo2 is ignored */ - void *Handler; - void *Instance; + u_int Attributes; + u_int AssignedIRQ; + irq_handler_t Handler; } irq_req_t; /* Attributes for RequestIRQ and ReleaseIRQ */ @@ -125,7 +127,7 @@ typedef struct irq_req_t { #define IRQ_TYPE_DYNAMIC_SHARING 0x02 #define IRQ_FORCED_PULSE 0x04 #define IRQ_FIRST_SHARED 0x08 -#define IRQ_HANDLE_PRESENT 0x10 +//#define IRQ_HANDLE_PRESENT 0x10 #define IRQ_PULSE_ALLOCATED 0x100 /* Bits in IRQInfo1 field */ |