Re: F2 get power and date off (Re: iBook/sleep ?)

[Tsubai Masanari <tsubai@iri.co.jp>]

たぶんこんな感じでいいと思いますが、このコードどこに入れれば
いいのだろう…。(ここでは埋め込んでる)R128_BASE というアドレスは
ofb なんですが、ofb は建前上はハードウェアに直接さわらないことに
なっているので行き場所がなくなってしまったのでした。

*** abtn.c~	Fri Mar 30 02:44:50 2001
--- abtn.c	Mon Apr  9 00:24:05 2001
***************
*** 30,40 ****
--- 30,48 ----
  #include <sys/device.h>
  #include <sys/systm.h>
  
+ #include <machine/pio.h>
  #include <macppc/dev/adbvar.h>
  
  #define NVRAM_BRIGHTNESS 0x140e
  #define ABTN_HANDLER_ID 31
  
+ #define R128_BASE		0xa0000000		/* XXX */
+ #define LVDS_GEN_CNTL		0x02d0
+ #define LVDS_BL_MOD_LEVEL_MASK	0x0000ff00
+ #define LVDS_BL_MOD_EN		0x00010000
+ #define LVDS_DIGION		0x00040000
+ #define LVDS_BLON		0x00080000
+ 
  struct abtn_softc {
  	struct device sc_dev;
  
***************
*** 81,90 ****
  
  	printf("brightness/volume button\n");
  
! 	bright = pm_read_nvram(NVRAM_BRIGHTNESS);
! 	if (bright != 0)
! 		pm_set_brightness(bright);
! 	sc->brightness = bright;
  
  	sc->origaddr = aa->origaddr;
  	sc->adbaddr = aa->adbaddr;
--- 89,96 ----
  
  	printf("brightness/volume button\n");
  
! 	sc->brightness =
! 	    (in32rb(R128_BASE + LVDS_GEN_CNTL) & LVDS_BL_MOD_LEVEL_MASK) >> 8;
  
  	sc->origaddr = aa->origaddr;
  	sc->adbaddr = aa->adbaddr;
***************
*** 103,126 ****
  {
  	struct abtn_softc *sc = (struct abtn_softc *)data;
  	u_int cmd;
  
  	cmd = buffer[1];
  
  	switch (cmd) {
  	case 0x0a:
! 		sc->brightness -= 8;
! 		if (sc->brightness < 8)
! 			sc->brightness = 8;
! 		pm_set_brightness(sc->brightness);
! 		pm_write_nvram(NVRAM_BRIGHTNESS, sc->brightness);
  		break;
  
  	case 0x09:
! 		sc->brightness += 8;
! 		if (sc->brightness > 0x78)
! 			sc->brightness = 0x78;
! 		pm_set_brightness(sc->brightness);
! 		pm_write_nvram(NVRAM_BRIGHTNESS, sc->brightness);
  		break;
  	}
  }
--- 109,137 ----
  {
  	struct abtn_softc *sc = (struct abtn_softc *)data;
  	u_int cmd;
+ 	u_int x;
  
  	cmd = buffer[1];
  
+ 	x = in32rb(R128_BASE + LVDS_GEN_CNTL);
+ 	x &= ~LVDS_BL_MOD_LEVEL_MASK;
+ 	x |= LVDS_BL_MOD_EN | LVDS_BLON;
+ 
  	switch (cmd) {
  	case 0x0a:
! 		sc->brightness += 8;
! 		if (sc->brightness > 0xe0)
! 			sc->brightness = 0xe0;
! 		x |= sc->brightness << 8;
! 		out32rb(R128_BASE + LVDS_GEN_CNTL, x);
  		break;
  
  	case 0x09:
! 		sc->brightness -= 8;
! 		if (sc->brightness < 0)
! 			sc->brightness = 0;
! 		x |= sc->brightness << 8;
! 		out32rb(R128_BASE + LVDS_GEN_CNTL, x);
  		break;
  	}
  }