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OpenCloudOS-Kernel/include/linux/olpc-ec.h

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Platform: OLPC: add a stub to drivers/platform/ for the OLPC EC driver The OLPC EC driver has outgrown arch/x86/platform/. It's time to both share common code amongst different architectures, as well as move it out of arch/x86/. The XO-1.75 is ARM-based, and the EC driver shares a lot of code with the x86 code. Signed-off-by: Andres Salomon <dilinger@queued.net> Acked-by: Paul Fox <pgf@laptop.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2012-07-11 10:31:51 +08:00
#ifndef _LINUX_OLPC_EC_H
#define _LINUX_OLPC_EC_H
/* XO-1 EC commands */
#define EC_FIRMWARE_REV 0x08
#define EC_WRITE_SCI_MASK 0x1b
#define EC_WAKE_UP_WLAN 0x24
#define EC_WLAN_LEAVE_RESET 0x25
#define EC_READ_EB_MODE 0x2a
#define EC_SET_SCI_INHIBIT 0x32
#define EC_SET_SCI_INHIBIT_RELEASE 0x34
#define EC_WLAN_ENTER_RESET 0x35
#define EC_WRITE_EXT_SCI_MASK 0x38
#define EC_SCI_QUERY 0x84
#define EC_EXT_SCI_QUERY 0x85
Platform: OLPC: allow EC cmd to be overridden, and create a workqueue to call it This provides a new API allows different OLPC architectures to override the EC driver. x86 and ARM OLPC machines use completely different EC backends. The olpc_ec_cmd is synchronous, and waits for the workqueue to send the command to the EC. Multiple callers can run olpc_ec_cmd() at once, and they will by serialized and sleep while only one executes on the EC at a time. We don't provide an unregister function, as that doesn't make sense within the context of OLPC machines - there's only ever 1 EC, it's critical to functionality, and it certainly not hotpluggable. Signed-off-by: Andres Salomon <dilinger@queued.net> Acked-by: Paul Fox <pgf@laptop.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2012-07-12 08:40:25 +08:00
struct olpc_ec_driver {
int (*ec_cmd)(u8, u8 *, size_t, u8 *, size_t, void *);
};
Platform: OLPC: add a stub to drivers/platform/ for the OLPC EC driver The OLPC EC driver has outgrown arch/x86/platform/. It's time to both share common code amongst different architectures, as well as move it out of arch/x86/. The XO-1.75 is ARM-based, and the EC driver shares a lot of code with the x86 code. Signed-off-by: Andres Salomon <dilinger@queued.net> Acked-by: Paul Fox <pgf@laptop.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2012-07-11 10:31:51 +08:00
#ifdef CONFIG_OLPC
Platform: OLPC: allow EC cmd to be overridden, and create a workqueue to call it This provides a new API allows different OLPC architectures to override the EC driver. x86 and ARM OLPC machines use completely different EC backends. The olpc_ec_cmd is synchronous, and waits for the workqueue to send the command to the EC. Multiple callers can run olpc_ec_cmd() at once, and they will by serialized and sleep while only one executes on the EC at a time. We don't provide an unregister function, as that doesn't make sense within the context of OLPC machines - there's only ever 1 EC, it's critical to functionality, and it certainly not hotpluggable. Signed-off-by: Andres Salomon <dilinger@queued.net> Acked-by: Paul Fox <pgf@laptop.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2012-07-12 08:40:25 +08:00
extern void olpc_ec_driver_register(struct olpc_ec_driver *drv, void *arg);
Platform: OLPC: add a stub to drivers/platform/ for the OLPC EC driver The OLPC EC driver has outgrown arch/x86/platform/. It's time to both share common code amongst different architectures, as well as move it out of arch/x86/. The XO-1.75 is ARM-based, and the EC driver shares a lot of code with the x86 code. Signed-off-by: Andres Salomon <dilinger@queued.net> Acked-by: Paul Fox <pgf@laptop.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2012-07-11 10:31:51 +08:00
extern int olpc_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf,
size_t outlen);
#else
static inline int olpc_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf,
size_t outlen) { return -ENODEV; }
#endif /* CONFIG_OLPC */
#endif /* _LINUX_OLPC_EC_H */