[src/trunk]: src/sys/arch/macppc/dev bus_space-ify

[macallan <macallan%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/acdaea681db4
branches:  trunk
changeset: 356298:acdaea681db4
user:      macallan <macallan%NetBSD.org@localhost>
date:      Fri Sep 15 21:34:42 2017 +0000

description:
bus_space-ify

diffstat:

 sys/arch/macppc/dev/ki2c.c    |  26 ++++++++++++++------------
 sys/arch/macppc/dev/ki2cvar.h |   6 ++++--
 2 files changed, 18 insertions(+), 14 deletions(-)

diffs (95 lines):

diff -r 476a6bb0f3ff -r acdaea681db4 sys/arch/macppc/dev/ki2c.c
--- a/sys/arch/macppc/dev/ki2c.c        Fri Sep 15 21:33:52 2017 +0000
+++ b/sys/arch/macppc/dev/ki2c.c        Fri Sep 15 21:34:42 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ki2c.c,v 1.20 2017/09/05 17:21:09 macallan Exp $       */
+/*     $NetBSD: ki2c.c,v 1.21 2017/09/15 21:34:42 macallan Exp $       */
 /*     Id: ki2c.c,v 1.7 2002/10/05 09:56:05 tsubai Exp */
 
 /*-
@@ -45,8 +45,8 @@
 
 int ki2c_match(device_t, cfdata_t, void *);
 void ki2c_attach(device_t, device_t, void *);
-inline u_int ki2c_readreg(struct ki2c_softc *, int);
-inline void ki2c_writereg(struct ki2c_softc *, int, u_int);
+inline uint8_t ki2c_readreg(struct ki2c_softc *, int);
+inline void ki2c_writereg(struct ki2c_softc *, int, uint8_t);
 u_int ki2c_getmode(struct ki2c_softc *);
 void ki2c_setmode(struct ki2c_softc *, u_int);
 u_int ki2c_getspeed(struct ki2c_softc *);
@@ -95,6 +95,7 @@
        u_int reg[20];
 
        sc->sc_dev = self;
+       sc->sc_tag = ca->ca_tag;
        ca->ca_reg[0] += ca->ca_baseaddr;
 
        if (OF_getprop(node, "AAPL,i2c-rate", &rate, 4) != 4) {
@@ -105,7 +106,11 @@
                aprint_error(": unable to find i2c address\n");
                return;
        }
-       sc->sc_reg = mapiodev(addr, PAGE_SIZE, false);
+       if (bus_space_map(sc->sc_tag, addr, PAGE_SIZE, 0, &sc->sc_bh) != 0) {
+               aprint_error_dev(sc->sc_dev, "failed to map registers\n");
+               return;
+       }
+
        if (OF_getprop(node, "AAPL,address-step", &sc->sc_regstep, 4) != 4) {
                aprint_error(": unable to find i2c address step\n");
                return;
@@ -200,21 +205,18 @@
        return UNCONF;
 }
 
-u_int
+uint8_t
 ki2c_readreg(struct ki2c_softc *sc, int reg)
 {
-       u_char *addr = sc->sc_reg + sc->sc_regstep * reg;
 
-       return *addr;
+       return bus_space_read_1(sc->sc_tag, sc->sc_bh, sc->sc_regstep * reg);
 }
 
 void
-ki2c_writereg(struct ki2c_softc *sc, int reg, u_int val)
+ki2c_writereg(struct ki2c_softc *sc, int reg, uint8_t val)
 {
-       u_char *addr = sc->sc_reg + sc->sc_regstep * reg;
-
-       *addr = val;
-       __asm volatile ("eieio");
+       
+       bus_space_write_1(sc->sc_tag, sc->sc_bh, reg * sc->sc_regstep, val);
        delay(10);
 }
 
diff -r 476a6bb0f3ff -r acdaea681db4 sys/arch/macppc/dev/ki2cvar.h
--- a/sys/arch/macppc/dev/ki2cvar.h     Fri Sep 15 21:33:52 2017 +0000
+++ b/sys/arch/macppc/dev/ki2cvar.h     Fri Sep 15 21:34:42 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ki2cvar.h,v 1.4 2011/07/26 08:36:02 macallan Exp $     */
+/*     $NetBSD: ki2cvar.h,v 1.5 2017/09/15 21:34:42 macallan Exp $     */
 /*     Id: ki2c.c,v 1.7 2002/10/05 09:56:05 tsubai Exp */
 
 /*-
@@ -33,6 +33,7 @@
 #include <sys/param.h>
 #include <sys/device.h>
 #include <sys/systm.h>
+#include <machine/autoconf.h>
 
 #include <dev/i2c/i2cvar.h>
 
@@ -84,7 +85,8 @@
 
 struct ki2c_softc {
        device_t sc_dev;
-       u_char *sc_reg;
+       bus_space_tag_t sc_tag;
+       bus_space_handle_t sc_bh;
        int sc_regstep;
        
        struct i2c_controller sc_i2c;