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74 lines
2.0 KiB
74 lines
2.0 KiB
/* 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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#include <linux/bits.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_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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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_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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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_EC */ |
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#endif /* _LINUX_OLPC_EC_H */
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