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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/include/linux/olpc-ec.h
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@@ -2,6 +2,8 @@
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 #ifndef _LINUX_OLPC_EC_H
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 #define _LINUX_OLPC_EC_H
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+#include <linux/bits.h>
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+
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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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@@ -16,28 +18,57 @@
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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_GAME         BIT(0)
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+#define EC_SCI_SRC_BATTERY      BIT(1)
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+#define EC_SCI_SRC_BATSOC       BIT(2)
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+#define EC_SCI_SRC_BATERR       BIT(3)
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+#define EC_SCI_SRC_EBOOK        BIT(4)    /* XO-1 only */
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+#define EC_SCI_SRC_WLAN         BIT(5)    /* XO-1 only */
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+#define EC_SCI_SRC_ACPWR        BIT(6)
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+#define EC_SCI_SRC_BATCRIT      BIT(7)
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+#define EC_SCI_SRC_GPWAKE       BIT(8)   /* XO-1.5 only */
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+#define EC_SCI_SRC_ALL          GENMASK(8, 0)
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+
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 struct platform_device;
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 struct olpc_ec_driver {
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-	int (*probe)(struct platform_device *);
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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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+
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+	bool wakeup_available;
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 };
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-#ifdef CONFIG_OLPC
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+#ifdef CONFIG_OLPC_EC
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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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+
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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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+
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+extern bool olpc_ec_wakeup_available(void);
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+
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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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-#endif /* CONFIG_OLPC */
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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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+
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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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+
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+#endif /* CONFIG_OLPC_EC */
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 #endif /* _LINUX_OLPC_EC_H */