Add detaching support to networking pcmcia cards

1 files changed, 347 insertions, 0 deletions

diff --git a/sys/dev/pcmcia/if_rl2_pcmcia.c b/sys/dev/pcmcia/if_rl2_pcmcia.c
new file mode 100644
index 00000000000..b94c886e055
--- /dev/null
+++ b/sys/dev/pcmcia/if_rl2_pcmcia.c
@@ -0,0 +1,347 @@
+/*	$OpenBSD: if_rl2_pcmcia.c,v 1.6 1999/08/08 01:17:23 niklas Exp $	*/
+/*
+ * David Leonard <d@openbsd.org>, 1999. Public domain.
+ *
+ * Proxim RangeLAN2 PC-Card and compatibles
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/socket.h>
+#include <sys/device.h>
+#include <sys/queue.h>
+
+#include <net/if.h>
+
+#ifdef INET
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+#endif
+
+#include <machine/bus.h>
+#include <machine/intr.h>
+
+#include <dev/ic/rl2.h>
+#include <dev/ic/rl2var.h>
+#include <dev/ic/rl2reg.h>
+
+#include <dev/pcmcia/pcmciareg.h>
+#include <dev/pcmcia/pcmciavar.h>
+#include <dev/pcmcia/pcmciadevs.h>
+
+struct rl2_pcmcia_softc {
+	struct rl2_softc sc_rl2;		/* real "rl2" softc */
+
+	struct pcmcia_io_handle sc_pcioh;	/* PCMCIA i/o information */
+	int sc_io_window;			/* i/o window for the card */
+	struct pcmcia_function *sc_pf;		/* our PCMCIA function */
+	void *sc_ih;				/* our interrupt handle */
+};
+
+int	rl2_pcmcia_match __P((struct device *, void *, void *));
+struct rl2_pcmcia_product *rl2_pcmcia_product_lookup
+    __P((struct pcmcia_attach_args *));
+void	rl2_pcmcia_attach __P((struct device *, struct device *, void *));
+int	rl2_pcmcia_detach __P((struct device *, int));
+int	rl2_pcmcia_activate __P((struct device *, enum devact));
+int	rl2intr_pcmcia __P((void *arg));
+
+#ifdef notyet
+int	rl2_pcmcia_enable __P((struct rl2_softc *));
+void	rl2_pcmcia_disable __P((struct rl2_softc *));
+#endif
+
+struct cfattach rln_pcmcia_ca = {
+	sizeof(struct rl2_pcmcia_softc), rl2_pcmcia_match, rl2_pcmcia_attach,
+	rl2_pcmcia_detach, rl2_pcmcia_activate
+};
+
+#define PCMCIA_CIS_RANGELAN2_7200 { "PROXIM", "LAN CARD",    "RANGELAN2", NULL }
+#define PCMCIA_CIS_RANGELAN2_7400 { "PROXIM", "LAN PC CARD", "RANGELAN2", NULL }
+#define PCMCIA_CIS_SYMPHONY       { "PROXIM", "LAN PC CARD", "SYMPHONY", NULL }
+
+static struct rl2_pcmcia_product {
+	u_int32_t	manufacturer;
+	u_int32_t	product;
+	const char	*name;
+	u_int8_t	flags;
+} rl2_pcmcia_products[] = {
+	{ 0x0126,				/* Digital */
+	  0x1058,				/* RoamAbout 2400 FH */
+	  "Digital RoamAbout 2400 FH",
+	  0 },
+	{ 0x8a01,				/* AMP */
+	  0x0066,				/* Wireless */
+	  "AMP Wireless",
+	  0 },
+	{ 0,
+	  0,
+	  "unknown RangeLAN2 wireless network card",
+	  0 },
+};
+
+/* Match the product and manufacturer codes with known card types */
+struct rl2_pcmcia_product *
+rl2_pcmcia_product_lookup(pa)
+	struct pcmcia_attach_args *pa;
+{
+	struct rl2_pcmcia_product *rpp;
+
+	for (rpp = rl2_pcmcia_products; rpp->manufacturer && rpp->product;
+	    rpp++)
+		if (pa->manufacturer == rpp->manufacturer &&
+		    pa->product == rpp->product)
+			break;
+	return (rpp);
+}
+
+/* Match card CIS info string with RangeLAN2 cards */
+int
+rl2_pcmcia_match(parent, match, aux)
+	struct device *parent;
+	void *match, *aux;
+{
+	struct pcmcia_attach_args *pa = aux;
+	static const char *cis_7200[] = PCMCIA_CIS_RANGELAN2_7200;
+	static const char *cis_7400[] = PCMCIA_CIS_RANGELAN2_7400;
+	static const char *cis_symp[] = PCMCIA_CIS_SYMPHONY;
+	static const char **cis_info[] = { cis_7200, cis_7400, cis_symp, NULL };
+	const char ***cis;
+	int i;
+
+	for (cis = cis_info; *cis; cis++) {
+		for (i = 0; ; i++) {
+			if ((*cis)[i] == NULL)
+				return (1);
+			if (strcmp((*cis)[i], pa->card->cis1_info[i]) != 0)
+				break;
+		}
+	}
+	return (0);
+}
+
+/* Attach and configure */
+void
+rl2_pcmcia_attach(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct rl2_pcmcia_softc *psc = (void *) self;
+	struct rl2_softc *sc = &psc->sc_rl2;
+	struct pcmcia_attach_args *pa = aux;
+	struct pcmcia_config_entry *cfe;
+	struct rl2_pcmcia_product *rpp;
+
+#ifdef RL2DEBUG
+	/* Allowed i/o base addresses from the RoamAbout owner's manual */
+	int i;
+	static bus_addr_t iobases[] = {
+		0x270, 		/* useful in user-space debugging */
+		0x100, 0x120, 0x140, 0x218, 0x270, 0x280, 0x290, 0x298,
+		0x2a0, 0x2a8, 0x2e0, 0x300, 0x310, 0x358, 0x360, 0x368,
+		0
+	};
+#endif
+
+	psc->sc_pf = pa->pf;
+	cfe = psc->sc_pf->cfe_head.sqh_first;
+
+	/* Guess the transfer width we will be using */
+	if (cfe->flags & PCMCIA_CFE_IO16)
+		sc->sc_width = 16;
+	else if (cfe->flags & PCMCIA_CFE_IO8)
+		sc->sc_width = 8;
+	else
+		sc->sc_width = 0;
+
+#ifdef DIAGNOSTIC
+	/* We only expect one i/o region and no memory region */
+	if (cfe->num_memspace != 0)
+		printf(": unexpected number of memory spaces (%d)\n",
+		    cfe->num_memspace);
+	if (cfe->num_iospace != 1)
+		printf(": unexpected number of i/o spaces (%d)\n",
+		    cfe->num_iospace);
+	else if (cfe->iospace[0].length != RL2_NPORTS)
+		printf(": unexpected size of i/o space (0x%x)\n",
+		    cfe->iospace[0].length);
+	if (sc->sc_width == 0)
+		printf(": unknown bus width\n");
+#endif /* DIAGNOSTIC */
+
+	pcmcia_function_init(psc->sc_pf, cfe);
+
+	/* Allocate i/o space */
+#ifdef RL2DEBUG
+	/* Try only those ports from the manual */
+	for (i=0; iobases[i] != 0; i++)
+		if (pcmcia_io_alloc(psc->sc_pf, iobases[i], RL2_NPORTS,
+		    RL2_NPORTS, &psc->sc_pcioh) == 0)
+			break;
+	if (iobases[i] == 0) {
+#else
+	if (pcmcia_io_alloc(psc->sc_pf, 0, RL2_NPORTS,
+	    RL2_NPORTS, &psc->sc_pcioh)) {
+#endif
+		printf(": can't alloc i/o space\n");
+		return;
+	}
+
+	sc->sc_iot = psc->sc_pcioh.iot;
+	sc->sc_ioh = psc->sc_pcioh.ioh;
+
+	/* Map i/o space */
+	if (pcmcia_io_map(psc->sc_pf, ((sc->sc_width == 8) ? PCMCIA_WIDTH_IO8 :
+	    (sc->sc_width == 16) ? PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_AUTO),
+	    0, RL2_NPORTS, &psc->sc_pcioh, &psc->sc_io_window)) {
+		printf(": can't map i/o space\n");
+		return;
+	}
+
+	/* Enable the card */
+	if (pcmcia_function_enable(psc->sc_pf)) {
+		printf(": function enable failed\n");
+		return;
+	}
+
+#ifdef notyet
+	sc->enable = rl2_pcmcia_enable;
+	sc->disable = rl2_pcmcia_disable;
+#endif
+
+	rpp = rl2_pcmcia_product_lookup(pa);
+
+	/* Check if the device has a separate antenna module */
+	sc->sc_cardtype = 0;
+	switch (psc->sc_pf->ccr_base) {
+	case 0x0100:
+		sc->sc_cardtype |= RL2_CTYPE_ONE_PIECE;
+		break;
+	case 0x0800:
+		sc->sc_cardtype &= ~RL2_CTYPE_ONE_PIECE;
+		break;
+#ifdef DIAGNOSTIC
+	default:
+		printf("\n%s: cannot tell if one or two piece (ccr addr %x)\n",
+			sc->sc_dev.dv_xname, psc->sc_pf->ccr_base);
+#endif
+	}
+
+	/* The PC-card needs to be told to use 'irq' 15 */
+	sc->sc_irq = 15;
+
+	/*
+	 * We need to get an interrupt before configuring, since
+	 * polling registers (the alternative) to reading card
+	 * responses, causes hard lock-ups.
+	 */
+	printf("\n");
+	sc->sc_ih = pcmcia_intr_establish(psc->sc_pf, IPL_NET,
+		rl2intr_pcmcia, sc);
+	if (sc->sc_ih == NULL)
+		printf("%s: couldn't establish interrupt\n",
+		    sc->sc_dev.dv_xname);
+
+	printf("%s: %s", sc->sc_dev.dv_xname, rpp->name);
+#ifdef DIAGNOSTIC
+	if (rpp->manufacturer == 0)
+		printf(" manf %04x prod %04x", pa->manufacturer, pa->product);
+#endif
+	rl2config(sc);
+	printf("\n");
+}
+
+int
+rl2_pcmcia_detach(dev, flags)
+	struct device *dev;
+	int flags;
+{
+	struct rl2_pcmcia_softc *psc = (struct rl2_pcmcia_softc *)dev;
+	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
+	int rv = 0;
+
+	pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window);
+	pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh);
+
+	ether_ifdetach(ifp);
+	if_detach(ifp);
+
+	return (rv);
+}
+
+int
+rl2_pcmcia_activate(dev, act)
+	struct device *dev;
+	enum devact act;
+{
+	struct rl2_pcmcia_softc *sc = (struct rl2_pcmcia_softc *)dev;
+	int s;
+
+	s = splnet();
+	switch (act) {
+	case DVACT_ACTIVATE:
+		pcmcia_function_enable(sc->sc_pf);
+		sc->sc_rl2.sc_ih =
+		    pcmcia_intr_establish(sc->sc_pf, IPL_NET, rl2intr_pcmcia,
+		        sc);
+		break;
+
+	case DVACT_DEACTIVATE:
+		pcmcia_function_disable(sc->sc_pf);
+		pcmcia_intr_disestablish(sc->sc_pf, sc->sc_rl2.sc_ih);
+		break;
+	}
+	splx(s);
+	return (0);
+}
+
+/* Interrupt handler */
+int
+rl2intr_pcmcia(arg)
+	void *arg;
+{
+	struct rl2_softc *sc = (struct rl2_softc *)arg;
+	struct rl2_pcmcia_softc *psc = (struct rl2_pcmcia_softc *)sc;
+	int opt;
+	int ret;
+
+	/* Need to immediately read/write the option register for PC-card */
+	opt = pcmcia_ccr_read(psc->sc_pf, PCMCIA_CCR_OPTION);
+	pcmcia_ccr_write(psc->sc_pf, PCMCIA_CCR_OPTION, opt);
+
+	/* Call actual interrupt handler */
+	ret = rl2intr(arg);
+
+	return (ret);
+}
+
+#ifdef notyet
+int
+rl2_pcmcia_enable(sc)
+	struct rl2_softc *sc;
+{
+	struct rl2_pcmcia_softc *psc = (struct rl2_pcmcia_softc *) sc;
+	struct pcmcia_function *pf = psc->sc_pf;
+
+	/* Establish the interrupt */
+	sc->sc_ih = pcmcia_intr_establish(psc->sc_pf, IPL_NET,
+		rl2intr_pcmcia, sc);
+	if (sc->sc_ih == NULL) {
+		printf("%s: couldn't establish interrupt\n",
+		    sc->sc_dev.dv_xname);
+		return (1);
+	}
+
+	return (pcmcia_function_enable(pf));
+}
+
+void
+rl2_pcmcia_disable(sc)
+	struct rl2_softc *sc;
+{
+	struct rl2_pcmcia_softc *psc = (struct rl2_pcmcia_softc *) sc;
+
+	pcmcia_function_disable(psc->sc_pf);
+	pcmcia_intr_disestablish(psc->sc_pf, sc->sc_ih);
+}
+#endif