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x86, olpc-xo1-sci: Add GPE handler and ebook switch functionality

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The EC in the OLPC XO-1 delivers GPE events to provide various
notifications. Add the basic code for GPE/EC event processing and
enable the ebook switch, which can be used as a wakeup source.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Link: http://lkml.kernel.org/r/1309019658-1712-8-git-send-email-dsd@laptop.org
Acked-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
Daniel Drake
2011-06-25 17:34:14 +01:00
committed by H. Peter Anvin
parent bc4ecd5a5e
commit 7bc74b3df7
4 changed files with 209 additions and 3 deletions
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5
arch/x86/include/asm/olpc.h
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@@ -111,6 +111,7 @@ extern int olpc_ec_cmd(unsigned char cmd, unsigned char *inbuf, size_t inlen,
#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
@@ -144,7 +145,7 @@ extern int olpc_ec_cmd(unsigned char cmd, unsigned char *inbuf, size_t inlen,
#define OLPC_GPIO_SMB_CLK 14
#define OLPC_GPIO_SMB_DATA 15
#define OLPC_GPIO_WORKAUX geode_gpio(24)
#define OLPC_GPIO_LID geode_gpio(26)
#define OLPC_GPIO_ECSCI geode_gpio(27)
#define OLPC_GPIO_LID 26
#define OLPC_GPIO_ECSCI 27
#endif /* _ASM_X86_OLPC_H */