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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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ec9964b480
Move the olpc-ec driver away from the X86 OLPC platform so that it could be used by the ARM based laptops too. Notably, the driver for the OLPC battery, which is also used on the ARM models, builds on this driver's interface. It is actually plaform independent: the OLPC EC commands with their argument and responses are mostly the same despite the delivery mechanism is different. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_OLPC_EC_H
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#define _LINUX_OLPC_EC_H
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/* XO-1 EC commands */
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#define EC_FIRMWARE_REV 0x08
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#define EC_WRITE_SCI_MASK 0x1b
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#define EC_WAKE_UP_WLAN 0x24
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#define EC_WLAN_LEAVE_RESET 0x25
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#define EC_DCON_POWER_MODE 0x26
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#define EC_READ_EB_MODE 0x2a
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#define EC_SET_SCI_INHIBIT 0x32
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#define EC_SET_SCI_INHIBIT_RELEASE 0x34
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#define EC_WLAN_ENTER_RESET 0x35
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#define EC_WRITE_EXT_SCI_MASK 0x38
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#define EC_SCI_QUERY 0x84
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#define EC_EXT_SCI_QUERY 0x85
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/* SCI source values */
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#define EC_SCI_SRC_EMPTY 0x00
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#define EC_SCI_SRC_GAME 0x01
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#define EC_SCI_SRC_BATTERY 0x02
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#define EC_SCI_SRC_BATSOC 0x04
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#define EC_SCI_SRC_BATERR 0x08
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#define EC_SCI_SRC_EBOOK 0x10 /* XO-1 only */
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#define EC_SCI_SRC_WLAN 0x20 /* XO-1 only */
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#define EC_SCI_SRC_ACPWR 0x40
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#define EC_SCI_SRC_BATCRIT 0x80
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#define EC_SCI_SRC_GPWAKE 0x100 /* XO-1.5 only */
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#define EC_SCI_SRC_ALL 0x1FF
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struct platform_device;
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struct olpc_ec_driver {
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int (*suspend)(struct platform_device *);
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int (*resume)(struct platform_device *);
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int (*ec_cmd)(u8, u8 *, size_t, u8 *, size_t, void *);
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bool wakeup_available;
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};
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#ifdef CONFIG_OLPC
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extern void olpc_ec_driver_register(struct olpc_ec_driver *drv, void *arg);
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extern int olpc_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf,
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size_t outlen);
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extern void olpc_ec_wakeup_set(u16 value);
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extern void olpc_ec_wakeup_clear(u16 value);
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extern int olpc_ec_mask_write(u16 bits);
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extern int olpc_ec_sci_query(u16 *sci_value);
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extern bool olpc_ec_wakeup_available(void);
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#else
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static inline int olpc_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf,
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size_t outlen) { return -ENODEV; }
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static inline void olpc_ec_wakeup_set(u16 value) { }
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static inline void olpc_ec_wakeup_clear(u16 value) { }
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static inline bool olpc_ec_wakeup_available(void)
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{
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return false;
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}
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#endif /* CONFIG_OLPC */
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#endif /* _LINUX_OLPC_EC_H */
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