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[src/trunk]: src/sys/dev/pci Make oodles of mainly cosmetic changes that make...



details:   https://anonhg.NetBSD.org/src/rev/7324499cd5b7
branches:  trunk
changeset: 761379:7324499cd5b7
user:      dyoung <dyoung%NetBSD.org@localhost>
date:      Wed Jan 26 00:16:52 2011 +0000

description:
Make oodles of mainly cosmetic changes that make rtw(4)'s PCI attachment
resemble its CardBus attachment very, very closely: slightly more than
24 lines are different.  Alas, I cannot commit the CardBus part of this
change, yet, because I have to finish my overhaul of CardBus resource
handling, first.

diffstat:

 sys/dev/pci/if_rtw_pci.c |  222 ++++++++++++++++++++++++++++++----------------
 1 files changed, 145 insertions(+), 77 deletions(-)

diffs (truncated from 338 to 300 lines):

diff -r 908e3c4a504e -r 7324499cd5b7 sys/dev/pci/if_rtw_pci.c
--- a/sys/dev/pci/if_rtw_pci.c  Wed Jan 26 00:09:27 2011 +0000
+++ b/sys/dev/pci/if_rtw_pci.c  Wed Jan 26 00:16:52 2011 +0000
@@ -1,6 +1,33 @@
-/*     $NetBSD: if_rtw_pci.c,v 1.18 2010/03/04 22:57:37 dyoung Exp $   */
+/* $NetBSD: if_rtw_pci.c,v 1.19 2011/01/26 00:16:52 dyoung Exp $ */
 
 /*-
+ * Copyright (c) 2004, 2005, 2010 David Young.  All rights reserved.
+ *
+ * Adapted for the RTL8180 by David Young.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY David Young ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL David
+ * Young BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ */
+/*-
  * Copyright (c) 1998, 1999, 2000, 2002 The NetBSD Foundation, Inc.
  * All rights reserved.
  *
@@ -39,7 +66,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_rtw_pci.c,v 1.18 2010/03/04 22:57:37 dyoung Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_rtw_pci.c,v 1.19 2011/01/26 00:16:52 dyoung Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -79,51 +106,57 @@
 #define        RTW_PCI_MMBA            0x14    /* memory mapped base */
 
 struct rtw_pci_softc {
-       struct rtw_softc        psc_rtw;        /* real RTL8180 softc */
+       struct rtw_softc        psc_rtw;
 
-       pci_intr_handle_t       psc_ih;         /* interrupt handle */
-       void                    *psc_intrcookie;
-
-       pci_chipset_tag_t       psc_pc;         /* our PCI chipset */
-       pcitag_t                psc_pcitag;     /* our PCI tag */
+       pcireg_t                psc_csr;
+       void                    *psc_ih;
+       pci_chipset_tag_t       psc_pc;
+       pci_intr_handle_t       psc_pih;
+       pcitag_t                psc_tag;
 };
 
-static int     rtw_pci_match(device_t, cfdata_t, void *);
 static void    rtw_pci_attach(device_t, device_t, void *);
 static int     rtw_pci_detach(device_t, int);
+#if 0
+static void    rtw_pci_funcregen(struct rtw_regs *, int);
+#endif
+static const struct rtw_pci_product *
+               rtw_pci_lookup(const struct pci_attach_args *);
+static int     rtw_pci_match(device_t, cfdata_t, void *);
+static bool    rtw_pci_resume(device_t, const pmf_qual_t *);
+static int     rtw_pci_setup(struct rtw_pci_softc *);
+static bool    rtw_pci_suspend(device_t, const pmf_qual_t *);
 
-CFATTACH_DECL_NEW(rtw_pci, sizeof(struct rtw_pci_softc),
-    rtw_pci_match, rtw_pci_attach, rtw_pci_detach, NULL);
-
-static bool rtw_pci_resume(device_t, const pmf_qual_t *);
-static bool rtw_pci_suspend(device_t, const pmf_qual_t *);
+CFATTACH_DECL3_NEW(rtw_pci, sizeof(struct rtw_pci_softc),
+    rtw_pci_match, rtw_pci_attach, rtw_pci_detach, NULL, NULL, NULL,
+    DVF_DETACH_SHUTDOWN);
 
 static const struct rtw_pci_product {
-       u_int32_t       app_vendor;     /* PCI vendor ID */
-       u_int32_t       app_product;    /* PCI product ID */
-       const char      *app_product_name;
+       u_int32_t       rpp_vendor;     /* PCI vendor ID */
+       u_int32_t       rpp_product;    /* PCI product ID */
+       const char      *rpp_product_name;
 } rtw_pci_products[] = {
-       { PCI_VENDOR_REALTEK,           PCI_PRODUCT_REALTEK_RT8180,
-         "Realtek RTL8180 802.11 MAC/BBP" },
-       { PCI_VENDOR_BELKIN,            PCI_PRODUCT_BELKIN_F5D6001,
-         "Belkin F5D6001" },
-
-       { 0,                            0,                              NULL },
+         {PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8180,
+          "Realtek RTL8180 802.11 MAC/BBP"}
+       , {PCI_VENDOR_BELKIN, PCI_PRODUCT_BELKIN_F5D6001, "Belkin F5D6001"}
+       , {PCI_VENDOR_BELKIN, PCI_PRODUCT_BELKIN_F5D6020V3,
+          "Belkin F5D6020v3 802.11b (RTL8180 MAC/BBP)"}
+       , {PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DWL610,
+          "DWL-610 D-Link Air 802.11b (RTL8180 MAC/BBP)"}
+       , {0, 0, NULL}
 };
 
 static const struct rtw_pci_product *
 rtw_pci_lookup(const struct pci_attach_args *pa)
 {
-       const struct rtw_pci_product *app;
+       const struct rtw_pci_product *rpp;
 
-       for (app = rtw_pci_products;
-            app->app_product_name != NULL;
-            app++) {
-               if (PCI_VENDOR(pa->pa_id) == app->app_vendor &&
-                   PCI_PRODUCT(pa->pa_id) == app->app_product)
-                       return (app);
+       for (rpp = rtw_pci_products; rpp->rpp_product_name != NULL; rpp++) {
+               if (PCI_VENDOR(pa->pa_id) == rpp->rpp_vendor &&
+                   PCI_PRODUCT(pa->pa_id) == rpp->rpp_product)
+                       return rpp;
        }
-       return (NULL);
+       return NULL;
 }
 
 static int
@@ -132,9 +165,9 @@
        struct pci_attach_args *pa = aux;
 
        if (rtw_pci_lookup(pa) != NULL)
-               return (1);
+               return 1;
 
-       return (0);
+       return 0;
 }
 
 static void
@@ -144,17 +177,16 @@
        struct rtw_softc *sc = &psc->psc_rtw;
        struct rtw_regs *regs = &sc->sc_regs;
        struct pci_attach_args *pa = aux;
-       pci_chipset_tag_t pc = pa->pa_pc;
        const char *intrstr = NULL;
-       const struct rtw_pci_product *app;
-       int error;
+       const struct rtw_pci_product *rpp;
 
        sc->sc_dev = self;
+       sc->sc_dmat = pa->pa_dmat;
        psc->psc_pc = pa->pa_pc;
-       psc->psc_pcitag = pa->pa_tag;
+       psc->psc_tag = pa->pa_tag;
 
-       app = rtw_pci_lookup(pa);
-       if (app == NULL) {
+       rpp = rtw_pci_lookup(pa);
+       if (rpp == NULL) {
                printf("\n");
                panic("rtw_pci_attach: impossible");
        }
@@ -163,51 +195,52 @@
         * Get revision info, and set some chip-specific variables.
         */
        sc->sc_rev = PCI_REVISION(pa->pa_class);
-       aprint_normal(": %s, revision %d.%d\n", app->app_product_name,
-           (sc->sc_rev >> 4) & 0xf, sc->sc_rev & 0xf);
-
-       /* power up chip */
-       if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, NULL)) != 0 &&
-           error != EOPNOTSUPP) {
-               aprint_error_dev(self, "cannot activate %d\n", error);
-               return;
-       }
+       aprint_normal(": %s, revision %d.%d signature %08x\n",
+           rpp->rpp_product_name,
+           (sc->sc_rev >> 4) & 0xf, sc->sc_rev & 0xf,
+           pci_conf_read(psc->psc_pc, psc->psc_tag, 0x80));
 
        /*
         * Map the device.
         */
-       if (pci_mapreg_map(pa, RTW_PCI_MMBA,
-           PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
-           &regs->r_bt, &regs->r_bh, NULL, &regs->r_sz) == 0)
-               ;
-       else if (pci_mapreg_map(pa, RTW_PCI_IOBA, PCI_MAPREG_TYPE_IO, 0,
-           &regs->r_bt, &regs->r_bh, NULL, &regs->r_sz) == 0)
-               ;
-       else {
+       psc->psc_csr = PCI_COMMAND_MASTER_ENABLE |
+                     PCI_COMMAND_PARITY_ENABLE |
+                     PCI_COMMAND_SERR_ENABLE;
+       if (pci_mapreg_map(pa, RTW_PCI_MMBA, PCI_MAPREG_TYPE_MEM, 0,
+           &regs->r_bt, &regs->r_bh, NULL, &regs->r_sz) == 0) {
+               RTW_DPRINTF(RTW_DEBUG_ATTACH,
+                   ("%s: %s mapped %" PRIuMAX " bytes mem space\n",
+                    device_xname(self), __func__, (uintmax_t)regs->r_sz));
+               psc->psc_csr |= PCI_COMMAND_MEM_ENABLE;
+       } else if (pci_mapreg_map(pa, RTW_PCI_IOBA, PCI_MAPREG_TYPE_IO, 0,
+           &regs->r_bt, &regs->r_bh, NULL, &regs->r_sz) == 0) {
+               RTW_DPRINTF(RTW_DEBUG_ATTACH,
+                   ("%s: %s mapped %" PRIuMAX " bytes I/O space\n",
+                    device_xname(self), __func__, (uintmax_t)regs->r_sz));
+               psc->psc_csr |= PCI_COMMAND_IO_ENABLE;
+       } else {
                aprint_error_dev(self, "unable to map device registers\n");
                return;
        }
 
-       sc->sc_dmat = pa->pa_dmat;
-
        /*
-        * Make sure bus mastering is enabled.
+        * Bring the chip out of powersave mode and initialize the
+        * configuration registers.
         */
-       pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
-           pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
-           PCI_COMMAND_MASTER_ENABLE);
+       if (rtw_pci_setup(psc) != 0)
+               return;
 
        /*
         * Map and establish our interrupt.
         */
-       if (pci_intr_map(pa, &psc->psc_ih)) {
+       if (pci_intr_map(pa, &psc->psc_pih)) {
                aprint_error_dev(self, "unable to map interrupt\n");
                return;
        }
-       intrstr = pci_intr_string(pc, psc->psc_ih);
-       psc->psc_intrcookie = pci_intr_establish(pc, psc->psc_ih, IPL_NET,
+       intrstr = pci_intr_string(psc->psc_pc, psc->psc_pih);
+       psc->psc_ih = pci_intr_establish(psc->psc_pc, psc->psc_pih, IPL_NET,
            rtw_intr, sc);
-       if (psc->psc_intrcookie == NULL) {
+       if (psc->psc_ih == NULL) {
                aprint_error_dev(self, "unable to establish interrupt");
                if (intrstr != NULL)
                        aprint_error(" at %s", intrstr);
@@ -222,15 +255,14 @@
         */
        rtw_attach(sc);
 
-       if (pmf_device_register(sc->sc_dev, rtw_pci_suspend, rtw_pci_resume)) {
+       if (pmf_device_register(self, rtw_pci_suspend, rtw_pci_resume)) {
                pmf_class_network_register(self, &sc->sc_if);
                /*
                 * Power down the socket.
                 */
-               pmf_device_suspend(sc->sc_dev, &sc->sc_qual);
+               pmf_device_suspend(self, &sc->sc_qual);
        } else
-               aprint_error_dev(sc->sc_dev,
-                   "couldn't establish power handler\n");
+               aprint_error_dev(self, "couldn't establish power handler\n");
 }
 
 static int
@@ -243,8 +275,8 @@
 
        if ((rc = rtw_detach(sc)) != 0)
                return rc;
-       if (psc->psc_intrcookie != NULL)
-               pci_intr_disestablish(psc->psc_pc, psc->psc_intrcookie);
+       if (psc->psc_ih != NULL)
+               pci_intr_disestablish(psc->psc_pc, psc->psc_ih);
        bus_space_unmap(regs->r_bt, regs->r_bh, regs->r_sz);
 
        return 0;
@@ -257,9 +289,9 @@
        struct rtw_softc *sc = &psc->psc_rtw;
 
        /* Establish the interrupt. */
-       psc->psc_intrcookie = pci_intr_establish(psc->psc_pc, psc->psc_ih,
-           IPL_NET, rtw_intr, sc);
-       if (psc->psc_intrcookie == NULL) {
+       psc->psc_ih = pci_intr_establish(psc->psc_pc, psc->psc_pih, IPL_NET,
+           rtw_intr, sc);
+       if (psc->psc_ih == NULL) {
                aprint_error_dev(sc->sc_dev, "unable to establish interrupt\n");
                return false;
        }
@@ -276,7 +308,43 @@
                return false;
 
        /* Unhook the interrupt handler. */
-       pci_intr_disestablish(psc->psc_pc, psc->psc_intrcookie);
-       psc->psc_intrcookie = NULL;
+       pci_intr_disestablish(psc->psc_pc, psc->psc_ih);
+       psc->psc_ih = NULL;



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