mirror of
https://github.com/torvalds/linux.git
synced 2024-11-16 17:12:06 +00:00
85f90cf6ca
This uses the new EC driver framework in drivers/platform/olpc. The XO-1 and XO-1.5-specific code is still in arch/x86, but the generic stuff (including a new workqueue; no more running EC commands with IRQs disabled!) can be shared with other architectures. Signed-off-by: Andres Salomon <dilinger@queued.net> Acked-by: Paul Fox <pgf@laptop.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
133 lines
3.1 KiB
C
133 lines
3.1 KiB
C
/* OLPC machine specific definitions */
|
|
|
|
#ifndef _ASM_X86_OLPC_H
|
|
#define _ASM_X86_OLPC_H
|
|
|
|
#include <asm/geode.h>
|
|
|
|
struct olpc_platform_t {
|
|
int flags;
|
|
uint32_t boardrev;
|
|
int ecver;
|
|
};
|
|
|
|
#define OLPC_F_PRESENT 0x01
|
|
#define OLPC_F_DCON 0x02
|
|
#define OLPC_F_EC_WIDE_SCI 0x04
|
|
|
|
#ifdef CONFIG_OLPC
|
|
|
|
extern struct olpc_platform_t olpc_platform_info;
|
|
|
|
/*
|
|
* OLPC board IDs contain the major build number within the mask 0x0ff0,
|
|
* and the minor build number within 0x000f. Pre-builds have a minor
|
|
* number less than 8, and normal builds start at 8. For example, 0x0B10
|
|
* is a PreB1, and 0x0C18 is a C1.
|
|
*/
|
|
|
|
static inline uint32_t olpc_board(uint8_t id)
|
|
{
|
|
return (id << 4) | 0x8;
|
|
}
|
|
|
|
static inline uint32_t olpc_board_pre(uint8_t id)
|
|
{
|
|
return id << 4;
|
|
}
|
|
|
|
static inline int machine_is_olpc(void)
|
|
{
|
|
return (olpc_platform_info.flags & OLPC_F_PRESENT) ? 1 : 0;
|
|
}
|
|
|
|
/*
|
|
* The DCON is OLPC's Display Controller. It has a number of unique
|
|
* features that we might want to take advantage of..
|
|
*/
|
|
static inline int olpc_has_dcon(void)
|
|
{
|
|
return (olpc_platform_info.flags & OLPC_F_DCON) ? 1 : 0;
|
|
}
|
|
|
|
/*
|
|
* The "Mass Production" version of OLPC's XO is identified as being model
|
|
* C2. During the prototype phase, the following models (in chronological
|
|
* order) were created: A1, B1, B2, B3, B4, C1. The A1 through B2 models
|
|
* were based on Geode GX CPUs, and models after that were based upon
|
|
* Geode LX CPUs. There were also some hand-assembled models floating
|
|
* around, referred to as PreB1, PreB2, etc.
|
|
*/
|
|
static inline int olpc_board_at_least(uint32_t rev)
|
|
{
|
|
return olpc_platform_info.boardrev >= rev;
|
|
}
|
|
|
|
extern void olpc_ec_wakeup_set(u16 value);
|
|
extern void olpc_ec_wakeup_clear(u16 value);
|
|
extern bool olpc_ec_wakeup_available(void);
|
|
|
|
extern int olpc_ec_mask_write(u16 bits);
|
|
extern int olpc_ec_sci_query(u16 *sci_value);
|
|
|
|
#else
|
|
|
|
static inline int machine_is_olpc(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int olpc_has_dcon(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void olpc_ec_wakeup_set(u16 value) { }
|
|
static inline void olpc_ec_wakeup_clear(u16 value) { }
|
|
|
|
static inline bool olpc_ec_wakeup_available(void)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifdef CONFIG_OLPC_XO1_PM
|
|
extern void do_olpc_suspend_lowlevel(void);
|
|
extern void olpc_xo1_pm_wakeup_set(u16 value);
|
|
extern void olpc_xo1_pm_wakeup_clear(u16 value);
|
|
#endif
|
|
|
|
extern int pci_olpc_init(void);
|
|
|
|
/* SCI source values */
|
|
|
|
#define EC_SCI_SRC_EMPTY 0x00
|
|
#define EC_SCI_SRC_GAME 0x01
|
|
#define EC_SCI_SRC_BATTERY 0x02
|
|
#define EC_SCI_SRC_BATSOC 0x04
|
|
#define EC_SCI_SRC_BATERR 0x08
|
|
#define EC_SCI_SRC_EBOOK 0x10 /* XO-1 only */
|
|
#define EC_SCI_SRC_WLAN 0x20 /* XO-1 only */
|
|
#define EC_SCI_SRC_ACPWR 0x40
|
|
#define EC_SCI_SRC_BATCRIT 0x80
|
|
#define EC_SCI_SRC_GPWAKE 0x100 /* XO-1.5 only */
|
|
#define EC_SCI_SRC_ALL 0x1FF
|
|
|
|
/* GPIO assignments */
|
|
|
|
#define OLPC_GPIO_MIC_AC 1
|
|
#define OLPC_GPIO_DCON_STAT0 5
|
|
#define OLPC_GPIO_DCON_STAT1 6
|
|
#define OLPC_GPIO_DCON_IRQ 7
|
|
#define OLPC_GPIO_THRM_ALRM geode_gpio(10)
|
|
#define OLPC_GPIO_DCON_LOAD 11
|
|
#define OLPC_GPIO_DCON_BLANK 12
|
|
#define OLPC_GPIO_SMB_CLK 14
|
|
#define OLPC_GPIO_SMB_DATA 15
|
|
#define OLPC_GPIO_WORKAUX geode_gpio(24)
|
|
#define OLPC_GPIO_LID 26
|
|
#define OLPC_GPIO_ECSCI 27
|
|
|
|
#endif /* _ASM_X86_OLPC_H */
|