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[src/trunk]: src/sys/dev - Add pmf(9) suspend, resume to bwi(4) cardbus front...



details:   https://anonhg.NetBSD.org/src/rev/405f495cc03a
branches:  trunk
changeset: 778748:405f495cc03a
user:      nakayama <nakayama%NetBSD.org@localhost>
date:      Thu Apr 12 12:52:58 2012 +0000

description:
- Add pmf(9) suspend, resume to bwi(4) cardbus front end.
- Apply cardbus code cleanups.

diffstat:

 sys/dev/cardbus/if_bwi_cardbus.c |  144 +++++++++++++++++---------------------
 sys/dev/ic/bwi.c                 |   14 ++-
 sys/dev/ic/bwivar.h              |    6 +-
 3 files changed, 78 insertions(+), 86 deletions(-)

diffs (truncated from 370 to 300 lines):

diff -r f09c5107a1b9 -r 405f495cc03a sys/dev/cardbus/if_bwi_cardbus.c
--- a/sys/dev/cardbus/if_bwi_cardbus.c  Thu Apr 12 11:46:14 2012 +0000
+++ b/sys/dev/cardbus/if_bwi_cardbus.c  Thu Apr 12 12:52:58 2012 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_bwi_cardbus.c,v 1.1 2012/04/08 20:49:29 christos Exp $ */
+/*     $NetBSD: if_bwi_cardbus.c,v 1.2 2012/04/12 12:52:58 nakayama Exp $ */
 /*     $OpenBSD: if_bwi_cardbus.c,v 1.13 2010/08/06 05:26:24 mglocker Exp $ */
 
 /*
@@ -19,11 +19,12 @@
  */
 
 /*
- * Cardbus front-end for the Broadcom AirForce
+ * Broadcom AirForce BCM43xx IEEE 802.11b/g wireless network driver
+ * CardBus front end
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0,"$NetBSD: if_bwi_cardbus.c,v 1.1 2012/04/08 20:49:29 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_bwi_cardbus.c,v 1.2 2012/04/12 12:52:58 nakayama Exp $");
 
 #include "opt_inet.h"
 
@@ -51,12 +52,12 @@
 
 #include <dev/pci/pcireg.h>
 #include <dev/pci/pcivar.h>
+#include <dev/pci/pcidevs.h>
 
 #include <dev/cardbus/cardbusvar.h>
 
 #include <dev/ic/bwireg.h>
 #include <dev/ic/bwivar.h>
-#include <dev/pci/pcidevs.h>
 
 struct bwi_cardbus_softc {
        struct bwi_softc         csc_bwi;
@@ -64,27 +65,24 @@
        /* cardbus specific goo */
        cardbus_devfunc_t        csc_ct;
        pcitag_t                 csc_tag;
-       void                    *csc_ih;
 
        bus_size_t               csc_mapsize;
        pcireg_t                 csc_bar_val;
-       int                      csc_intrline;
-       pci_chipset_tag_t        csc_pc;
 };
 
-int            bwi_cardbus_match(device_t, cfdata_t, void*);
-void           bwi_cardbus_attach(device_t, device_t, void *);
-int            bwi_cardbus_detach(device_t, int);
-void           bwi_cardbus_setup(struct bwi_cardbus_softc *);
-int            bwi_cardbus_enable(struct bwi_softc *);
-void           bwi_cardbus_disable(struct bwi_softc *);
-void           bwi_cardbus_conf_write(void *, uint32_t, uint32_t);
-uint32_t       bwi_cardbus_conf_read(void *, uint32_t);
+static int     bwi_cardbus_match(device_t, cfdata_t, void *);
+static void    bwi_cardbus_attach(device_t, device_t, void *);
+static int     bwi_cardbus_detach(device_t, int);
+static void    bwi_cardbus_setup(struct bwi_cardbus_softc *);
+static int     bwi_cardbus_enable(struct bwi_softc *, int);
+static void    bwi_cardbus_disable(struct bwi_softc *, int);
+static void    bwi_cardbus_conf_write(void *, uint32_t, uint32_t);
+static uint32_t        bwi_cardbus_conf_read(void *, uint32_t);
 
 CFATTACH_DECL_NEW(bwi_cardbus, sizeof (struct bwi_cardbus_softc),
     bwi_cardbus_match, bwi_cardbus_attach, bwi_cardbus_detach, NULL);
 
-int
+static int
 bwi_cardbus_match(device_t parent, cfdata_t match, void *aux)
 {
        struct cardbus_attach_args *ca = aux;
@@ -112,7 +110,7 @@
        return (0);
 }
 
-void
+static void
 bwi_cardbus_attach(device_t parent, device_t self, void *aux)
 {
        struct bwi_cardbus_softc *csc = device_private(self);
@@ -123,6 +121,9 @@
        bus_addr_t base;
        int error;
 
+       aprint_naive("\n");
+       aprint_normal(": Broadcom Wireless\n");
+
        sc->sc_dev = self;
        sc->sc_dmat = ca->ca_dmat;
        csc->csc_ct = ct;
@@ -131,14 +132,13 @@
        /* power management hooks */
        sc->sc_enable = bwi_cardbus_enable;
        sc->sc_disable = bwi_cardbus_disable;
-       //sc->sc_power = bwi_cardbus_power;
 
        /* map control/status registers */
        error = Cardbus_mapreg_map(ct, BWI_PCIR_BAR,
            PCI_MAPREG_TYPE_MEM, 0, &sc->sc_mem_bt,
            &sc->sc_mem_bh, &base, &csc->csc_mapsize);
        if (error != 0) {
-               printf(": can't map mem space\n");
+               aprint_error_dev(self, "can't map mem space\n");
                return;
        }
        csc->csc_bar_val = base | PCI_MAPREG_TYPE_MEM;
@@ -146,8 +146,6 @@
        /* set up the PCI configuration registers */
        bwi_cardbus_setup(csc);
 
-       printf(": irq %d", csc->csc_intrline);
-
        /* we need to access Cardbus config space from the driver */
        sc->sc_conf_read = bwi_cardbus_conf_read;
        sc->sc_conf_write = bwi_cardbus_conf_write;
@@ -159,34 +157,38 @@
        sc->sc_pci_subvid = PCI_VENDOR(reg);
        sc->sc_pci_subdid = PCI_PRODUCT(reg);
 
+       if (pmf_device_register(self, bwi_suspend, bwi_resume))
+               pmf_class_network_register(self, &sc->sc_if);
+       else
+               aprint_error_dev(self, "couldn't establish power handler\n");
+
        error = bwi_attach(sc);
        if (error != 0)
-               bwi_cardbus_detach(sc->sc_dev, 0);
+               bwi_cardbus_detach(self, 0);
 
        Cardbus_function_disable(ct);
 }
 
-int
+static int
 bwi_cardbus_detach(device_t self, int flags)
 {
        struct bwi_cardbus_softc *csc = device_private(self);
        struct bwi_softc *sc = &csc->csc_bwi;
        cardbus_devfunc_t ct = csc->csc_ct;
-       cardbus_chipset_tag_t cc = ct->ct_cc;
-       cardbus_function_tag_t cf = ct->ct_cf;
 
 #ifdef DIAGNOSTIC
        if (ct == NULL)
                panic("%s: data structure lacks", device_xname(self));
+#endif
 
-#endif
+       pmf_device_deregister(self);
 
        bwi_detach(sc);
 
        /* unhook the interrupt handler */
-       if (csc->csc_ih != NULL) {
-               cardbus_intr_disestablish(cc, cf, csc->csc_ih);
-               csc->csc_ih = NULL;
+       if (sc->sc_ih != NULL) {
+               Cardbus_intr_disestablish(ct, sc->sc_ih);
+               sc->sc_ih = NULL;
        }
 
        /* release bus space and close window */
@@ -196,92 +198,78 @@
        return (0);
 }
 
-void
+static void
 bwi_cardbus_setup(struct bwi_cardbus_softc *csc)
 {
        cardbus_devfunc_t ct = csc->csc_ct;
-       cardbus_chipset_tag_t cc = ct->ct_cc;
-       pci_chipset_tag_t pc = csc->csc_pc;
-       cardbus_function_tag_t cf = ct->ct_cf;
        pcireg_t reg;
 
        /* program the BAR */
-       cardbus_conf_write(cc, cf, csc->csc_tag, BWI_PCIR_BAR,
-           csc->csc_bar_val);
-
-       /* make sure the right access type is on the cardbus bridge */
-       (*cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE);
-       (*cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
+       Cardbus_conf_write(ct, csc->csc_tag, BWI_PCIR_BAR, csc->csc_bar_val);
 
        /* enable the appropriate bits in the PCI CSR */
-       reg = pci_conf_read(pc, csc->csc_tag,
-           PCI_COMMAND_STATUS_REG);
+       reg = Cardbus_conf_read(ct, csc->csc_tag, PCI_COMMAND_STATUS_REG);
        reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE;
-       Cardbus_conf_write(ct, csc->csc_tag, PCI_COMMAND_STATUS_REG,
-           reg);
+       Cardbus_conf_write(ct, csc->csc_tag, PCI_COMMAND_STATUS_REG, reg);
 }
 
-int
-bwi_cardbus_enable(struct bwi_softc *sc)
+static int
+bwi_cardbus_enable(struct bwi_softc *sc, int pmf)
 {
        struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)sc;
        cardbus_devfunc_t ct = csc->csc_ct;
-       cardbus_chipset_tag_t cc = ct->ct_cc;
-       cardbus_function_tag_t cf = ct->ct_cf;
 
-       /* power on the socket */
-       Cardbus_function_enable(ct);
+       if (!pmf) {
+               /* power on the socket */
+               Cardbus_function_enable(ct);
 
-       /* setup the PCI configuration registers */
-       bwi_cardbus_setup(csc);
+               /* setup the PCI configuration registers */
+               bwi_cardbus_setup(csc);
+       }
 
        /* map and establish the interrupt handler */
-       csc->csc_ih = cardbus_intr_establish(cc, cf, IPL_NET,
-           bwi_intr, sc);
-       if (csc->csc_ih == NULL) {
+       sc->sc_ih = Cardbus_intr_establish(ct, IPL_NET, bwi_intr, sc);
+       if (sc->sc_ih == NULL) {
                aprint_error_dev(sc->sc_dev,
                    "unable to establish interrupt\n");
-               Cardbus_function_disable(ct);
-               return false;
+               if (!pmf)
+                       Cardbus_function_disable(ct);
+               return (1);
        }
 
        return (0);
 }
 
-void
-bwi_cardbus_disable(struct bwi_softc *sc)
+static void
+bwi_cardbus_disable(struct bwi_softc *sc, int pmf)
 {
        struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)sc;
        cardbus_devfunc_t ct = csc->csc_ct;
-       cardbus_chipset_tag_t cc = ct->ct_cc;
-       cardbus_function_tag_t cf = ct->ct_cf;
 
        /* unhook the interrupt handler */
-       cardbus_intr_disestablish(cc, cf, csc->csc_ih);
-       csc->csc_ih = NULL;
+       if (sc->sc_ih != NULL) {
+               Cardbus_intr_disestablish(ct, sc->sc_ih);
+               sc->sc_ih = NULL;
+       }
 
-       /* power down the socket */
-       Cardbus_function_disable(ct);
+       if (!pmf) {
+               /* power down the socket */
+               Cardbus_function_disable(ct);
+       }
 }
 
-void
-bwi_cardbus_conf_write(void *self, uint32_t reg, uint32_t val)
+static void
+bwi_cardbus_conf_write(void *sc, uint32_t reg, uint32_t val)
 {
-       struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)self;
-       cardbus_devfunc_t ct = csc->csc_ct;
-       cardbus_chipset_tag_t cc = ct->ct_cc;
-       cardbus_function_tag_t cf = ct->ct_cf;
+       struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)sc;
 
-       cardbus_conf_write(cc, cf, csc->csc_tag, reg, val);
+       Cardbus_conf_write(csc->csc_ct, csc->csc_tag, reg, val);
 }
 
-uint32_t
-bwi_cardbus_conf_read(void *self, uint32_t reg)
+static uint32_t
+bwi_cardbus_conf_read(void *sc, uint32_t reg)
 {
-       struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)self;
-       cardbus_devfunc_t ct = csc->csc_ct;
-       cardbus_chipset_tag_t cc = ct->ct_cc;
-       cardbus_function_tag_t cf = ct->ct_cf;
+       struct bwi_cardbus_softc *csc = (struct bwi_cardbus_softc *)sc;
 
-       return (cardbus_conf_read(cc, cf, csc->csc_tag, reg));
+       return Cardbus_conf_read(csc->csc_ct, csc->csc_tag, reg);
 }
diff -r f09c5107a1b9 -r 405f495cc03a sys/dev/ic/bwi.c
--- a/sys/dev/ic/bwi.c  Thu Apr 12 11:46:14 2012 +0000
+++ b/sys/dev/ic/bwi.c  Thu Apr 12 12:52:58 2012 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: bwi.c,v 1.19 2012/03/15 18:34:40 bouyer Exp $  */
+/*     $NetBSD: bwi.c,v 1.20 2012/04/12 12:52:58 nakayama Exp $        */



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