diff options
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/cardbus/files.cardbus | 8 | ||||
| -rw-r--r-- | sys/dev/cardbus/if_ral_cardbus.c | 242 | ||||
| -rw-r--r-- | sys/dev/ic/ral.c | 2296 | ||||
| -rw-r--r-- | sys/dev/ic/ralreg.h | 308 | ||||
| -rw-r--r-- | sys/dev/ic/ralvar.h | 153 | ||||
| -rw-r--r-- | sys/dev/pci/files.pci | 6 | ||||
| -rw-r--r-- | sys/dev/pci/if_ral_pci.c | 147 |
7 files changed, 3158 insertions, 2 deletions
diff --git a/sys/dev/cardbus/files.cardbus b/sys/dev/cardbus/files.cardbus index b56c3fc15a5..195d0de3e01 100644 --- a/sys/dev/cardbus/files.cardbus +++ b/sys/dev/cardbus/files.cardbus @@ -1,4 +1,4 @@ -# $OpenBSD: files.cardbus,v 1.13 2005/01/14 02:52:06 pvalchev Exp $ +# $OpenBSD: files.cardbus,v 1.14 2005/02/15 20:51:18 damien Exp $ # $NetBSD: files.cardbus,v 1.8 2000/01/26 06:37:24 thorpej Exp $ # # files.cardbus @@ -73,6 +73,12 @@ attach rtw at cardbus with rtw_cardbus file dev/cardbus/if_rtw_cardbus.c rtw_cardbus # +# Ralink RT2500 +# +attach ral at cardbus with ral_cardbus +file dev/cardbus/if_ral_cardbus.c ral_cardbus + +# # EHCI USB controller # attach ehci at cardbus with ehci_cardbus diff --git a/sys/dev/cardbus/if_ral_cardbus.c b/sys/dev/cardbus/if_ral_cardbus.c new file mode 100644 index 00000000000..848210376b5 --- /dev/null +++ b/sys/dev/cardbus/if_ral_cardbus.c @@ -0,0 +1,242 @@ +/* $OpenBSD: if_ral_cardbus.c,v 1.1 2005/02/15 20:51:18 damien Exp $ */ + +/*- + * Copyright (c) 2005 + * Damien Bergamini <damien.bergamini@free.fr> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * CardBus front-end for the Ralink RT2500 driver. + */ + +#include <sys/param.h> +#include <sys/sockio.h> +#include <sys/mbuf.h> +#include <sys/kernel.h> +#include <sys/socket.h> +#include <sys/systm.h> +#include <sys/malloc.h> +#include <sys/timeout.h> + +#include <machine/bus.h> +#include <machine/intr.h> + +#include <net/if.h> +#include <net/if_dl.h> +#include <net/if_media.h> + +#include <netinet/in.h> +#include <netinet/if_ether.h> + +#include <net80211/ieee80211_var.h> +#include <net80211/ieee80211_rssadapt.h> +#include <net80211/ieee80211_radiotap.h> + +#include <dev/ic/ralvar.h> + +#include <dev/pci/pcireg.h> +#include <dev/pci/pcivar.h> +#include <dev/pci/pcidevs.h> + +#include <dev/cardbus/cardbusvar.h> + +struct ral_cardbus_softc { + struct ral_softc sc_sc; + + /* cardbus specific goo */ + cardbus_devfunc_t sc_ct; + cardbustag_t sc_tag; + void *sc_ih; + bus_size_t sc_mapsize; + pcireg_t sc_bar_val; + int sc_intrline; +}; + +int ral_cardbus_match(struct device *, void *, void *); +void ral_cardbus_attach(struct device *, struct device *, void *); +int ral_cardbus_detach(struct device *, int); + +struct cfattach ral_cardbus_ca = { + sizeof (struct ral_cardbus_softc), ral_cardbus_match, + ral_cardbus_attach, ral_cardbus_detach +}; + +int ral_cardbus_enable(struct ral_softc *); +void ral_cardbus_disable(struct ral_softc *); +void ral_cardbus_power(struct ral_softc *, int); +void ral_cardbus_setup(struct ral_cardbus_softc *); + +int +ral_cardbus_match(struct device *parent, void *match, void *aux) +{ + struct cardbus_attach_args *ca = aux; + + if (CARDBUS_VENDOR(ca->ca_id) == PCI_VENDOR_RALINK && + CARDBUS_PRODUCT(ca->ca_id) == PCI_PRODUCT_RALINK_RT2560) + return 1; + + return 0; +} + +void +ral_cardbus_attach(struct device *parent, struct device *self, void *aux) +{ + struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)self; + struct ral_softc *sc = &csc->sc_sc; + struct cardbus_attach_args *ca = aux; + cardbus_devfunc_t ct = ca->ca_ct; + bus_addr_t base; + int error; + + sc->sc_dmat = ca->ca_dmat; + csc->sc_ct = ct; + csc->sc_tag = ca->ca_tag; + csc->sc_intrline = ca->ca_intrline; + + printf("\n"); + + /* power management hooks */ + sc->sc_enable = ral_cardbus_enable; + sc->sc_disable = ral_cardbus_disable; + sc->sc_power = ral_cardbus_power; + + /* map control/status registers */ + error = Cardbus_mapreg_map(ct, CARDBUS_BASE0_REG, + CARDBUS_MAPREG_TYPE_MEM, 0, &sc->sc_st, &sc->sc_sh, &base, + &csc->sc_mapsize); + if (error != 0) { + printf(": could not map memory space\n"); + return; + } + +#if rbus +#else + (*cf->cardbus_mem_open)(cc, 0, base, base + csc->sc_mapsize); +#endif + + csc->sc_bar_val = base | CARDBUS_MAPREG_TYPE_MEM; + + /* set up the PCI configuration registers */ + ral_cardbus_setup(csc); + + ral_attach(sc); + + Cardbus_function_disable(ct); +} + +int +ral_cardbus_detach(struct device *self, int flags) +{ + struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)self; + struct ral_softc *sc = &csc->sc_sc; + cardbus_devfunc_t ct = csc->sc_ct; + cardbus_chipset_tag_t cc = ct->ct_cc; + cardbus_function_tag_t cf = ct->ct_cf; + int error; + + error = ral_detach(sc); + if (error != 0) + return error; + + /* unhook the interrupt handler */ + if (csc->sc_ih != NULL) { + cardbus_intr_disestablish(cc, cf, csc->sc_ih); + csc->sc_ih = NULL; + } + + /* release bus space and close window */ + Cardbus_mapreg_unmap(ct, CARDBUS_BASE0_REG, sc->sc_st, sc->sc_sh, + csc->sc_mapsize); + + return 0; +} + +int +ral_cardbus_enable(struct ral_softc *sc) +{ + struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; + cardbus_devfunc_t ct = csc->sc_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); + + /* setup the PCI configuration registers */ + ral_cardbus_setup(csc); + + /* map and establish the interrupt handler */ + csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, IPL_NET, + ral_intr, sc); + if (csc->sc_ih == NULL) { + printf(": could not establish interrupt\n"); + Cardbus_function_disable(ct); + return 1; + } + printf(" irq %d\n", csc->sc_intrline); + + return 0; +} + +void +ral_cardbus_disable(struct ral_softc *sc) +{ + struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; + cardbus_devfunc_t ct = csc->sc_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->sc_ih); + csc->sc_ih = NULL; + + /* power down the socket */ + Cardbus_function_disable(ct); +} + +void +ral_cardbus_power(struct ral_softc *sc, int why) +{ + struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; + + if (why == PWR_RESUME) { + /* kick the PCI configuration registers */ + ral_cardbus_setup(csc); + } +} + +void +ral_cardbus_setup(struct ral_cardbus_softc *csc) +{ + cardbus_devfunc_t ct = csc->sc_ct; + cardbus_chipset_tag_t cc = ct->ct_cc; + cardbus_function_tag_t cf = ct->ct_cf; + pcireg_t reg; + + /* program the BAR */ + cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BASE0_REG, + csc->sc_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); + + /* enable the appropriate bits in the PCI CSR */ + reg = cardbus_conf_read(cc, cf, csc->sc_tag, + CARDBUS_COMMAND_STATUS_REG); + reg |= CARDBUS_COMMAND_MASTER_ENABLE | CARDBUS_COMMAND_MEM_ENABLE; + cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_COMMAND_STATUS_REG, + reg); +} diff --git a/sys/dev/ic/ral.c b/sys/dev/ic/ral.c new file mode 100644 index 00000000000..49e05980d98 --- /dev/null +++ b/sys/dev/ic/ral.c @@ -0,0 +1,2296 @@ +/* $OpenBSD: ral.c,v 1.1 2005/02/15 20:51:20 damien Exp $ */ + +/*- + * Copyright (c) 2005 + * Damien Bergamini <damien.bergamini@free.fr> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/*- + * Ralink Technology RT2500 chipset driver + * http://www.ralinktech.com/ + * + * The chipset includes a RT2525 Radio Transceiver and a RT2560 MAC/BBP. + */ + +#include "bpfilter.h" + +#include <sys/param.h> +#include <sys/sockio.h> +#include <sys/sysctl.h> +#include <sys/mbuf.h> +#include <sys/kernel.h> +#include <sys/socket.h> +#include <sys/systm.h> +#include <sys/malloc.h> +#include <sys/timeout.h> +#include <sys/conf.h> + +#include <machine/bus.h> +#include <machine/endian.h> +#include <machine/intr.h> + +#if NBPFILTER > 0 +#include <net/bpf.h> +#endif +#include <net/if.h> +#include <net/if_arp.h> +#include <net/if_dl.h> +#include <net/if_media.h> +#include <net/if_types.h> + +#include <netinet/in.h> +#include <netinet/in_systm.h> +#include <netinet/in_var.h> +#include <netinet/if_ether.h> +#include <netinet/ip.h> + +#include <net80211/ieee80211_var.h> +#include <net80211/ieee80211_rssadapt.h> +#include <net80211/ieee80211_radiotap.h> + +#include <dev/ic/ralreg.h> +#include <dev/ic/ralvar.h> + +#include <dev/pci/pcireg.h> +#include <dev/pci/pcivar.h> +#include <dev/pci/pcidevs.h> + +#define RAL_DEBUG + +#ifdef RAL_DEBUG +#define DPRINTF(x) if (ral_debug > 0) printf x +#define DPRINTFN(n, x) if (ral_debug >= (n)) printf x +int ral_debug = 14; +#else +#define DPRINTF(x) +#define DPRINTFN(n, x) +#endif + +static const struct ieee80211_rateset ral_rateset_11a = + { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } }; + +static const struct ieee80211_rateset ral_rateset_11b = + { 4, { 2, 4, 11, 22 } }; + +static const struct ieee80211_rateset ral_rateset_11g = + { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } }; + +int ral_alloc_tx_ring(struct ral_softc *, struct ral_tx_ring *, int); +void ral_reset_tx_ring(struct ral_softc *, struct ral_tx_ring *); +void ral_free_tx_ring(struct ral_softc *, struct ral_tx_ring *); +int ral_alloc_rx_ring(struct ral_softc *, struct ral_rx_ring *, int); +void ral_reset_rx_ring(struct ral_softc *, struct ral_rx_ring *); +void ral_free_rx_ring(struct ral_softc *, struct ral_rx_ring *); +int ral_media_change(struct ifnet *); +void ral_next_scan(void *); +void ral_rssadapt_updatestats(void *); +int ral_newstate(struct ieee80211com *, enum ieee80211_state, int); +uint16_t ral_eeprom_read(struct ral_softc *, uint8_t); +void ral_encryption_intr(struct ral_softc *); +void ral_tx_intr(struct ral_softc *); +void ral_prio_intr(struct ral_softc *); +void ral_decryption_intr(struct ral_softc *); +void ral_rx_intr(struct ral_softc *); +void ral_beacon_expire(struct ral_softc *); +void ral_wakeup_expire(struct ral_softc *); +uint8_t ral_plcp_signal(int); +#if 0 +int ral_tx_bcn(struct ral_softc *, struct mbuf *, struct ieee80211_node *); +#endif +int ral_tx_mgt(struct ral_softc *, struct mbuf *, struct ieee80211_node *); +int ral_tx_data(struct ral_softc *, struct mbuf *, struct ieee80211_node *); +void ral_start(struct ifnet *); +void ral_watchdog(struct ifnet *); +int ral_ioctl(struct ifnet *, u_long, caddr_t); +void ral_bbp_write(struct ral_softc *, uint8_t, uint8_t); +uint8_t ral_bbp_read(struct ral_softc *, uint8_t); +void ral_rf_write(struct ral_softc *, uint8_t, uint32_t); +void ral_set_chan(struct ral_softc *, struct ieee80211_channel *); +void ral_disable_rf_tune(struct ral_softc *); +void ral_enable_tsf_sync(struct ral_softc *); +void ral_update_plcp(struct ral_softc *); +void ral_update_led(struct ral_softc *, int, int); +void ral_set_bssid(struct ral_softc *, uint8_t *); +void ral_set_macaddr(struct ral_softc *, uint8_t *); +int ral_read_eeprom(struct ral_softc *); +int ral_bbp_init(struct ral_softc *); +int ral_init(struct ifnet *); +void ral_stop(struct ifnet *, int); + +/* + * Default values for MAC registers; values taken from the reference driver. + */ +static const struct { + uint32_t reg; + uint32_t val; +} ral_def_mac[] = { + { RAL_PSCSR0, 0x00020002 }, + { RAL_PSCSR1, 0x00000002 }, + { RAL_PSCSR2, 0x00020002 }, + { RAL_PSCSR3, 0x00000002 }, + { RAL_TIMECSR, 0x00003f21 }, + { RAL_CSR9, 0x00000780 }, + { RAL_CSR11, 0x07041483 }, + { RAL_CSR18, 0x00140000 }, + { RAL_CSR19, 0x016C0028 }, + { RAL_CNT3, 0x00000000 }, + { RAL_TXCSR1, 0x07614562 }, + { RAL_TXCSR8, 0x8c8d8b8a }, + { RAL_ARTCSR0, 0x7038140a }, + { RAL_ARTCSR1, 0x1d21252d }, + { RAL_ARTCSR2, 0x1919191d }, + { RAL_RXCSR0, 0xffffffff }, + { RAL_RXCSR3, 0xb3aab3af }, + { RAL_PCICSR, 0x000003b8 }, + { RAL_PWRCSR0, 0x3f3b3100 }, + { RAL_GPIOCSR, 0x0000ff00 }, + { RAL_TESTCSR, 0x000000f0 }, + { RAL_PWRCSR1, 0x000001ff }, + { RAL_MACCSR0, 0x00213223 }, + { RAL_MACCSR1, 0x00235518 }, + { RAL_MACCSR2, 0x00000040 }, + { RAL_RALINKCSR, 0x9a009a11 }, + { RAL_CSR7, 0xffffffff }, + { RAL_BBPCSR1, 0x82188200 }, + { RAL_TXACKCSR0, 0x00000020 }, + { RAL_SECCSR3, 0x0000e78f } +}; + +/* + * Default values for BBP registers; values taken from the reference driver. + */ +static const struct { + uint8_t reg; + uint8_t val; +} ral_def_bbp[] = { + { 3, 0x02 }, + { 4, 0x19 }, + { 14, 0x1c }, + { 15, 0x30 }, + { 16, 0xac }, + { 17, 0x48 }, + { 18, 0x18 }, + { 19, 0xff }, + { 20, 0x1e }, + { 21, 0x08 }, + { 22, 0x08 }, + { 23, 0x08 }, + { 24, 0x70 }, + { 25, 0x40 }, + { 26, 0x08 }, + { 27, 0x23 }, + { 30, 0x10 }, + { 31, 0x2b }, + { 32, 0xb9 }, + { 34, 0x12 }, + { 35, 0x50 }, + { 39, 0xc4 }, + { 40, 0x02 }, + { 41, 0x60 }, + { 53, 0x10 }, + { 54, 0x18 }, + { 56, 0x08 }, + { 57, 0x10 }, + { 58, 0x08 }, + { 61, 0x6d }, + { 62, 0x10 } +}; + +/* + * Default values for RF register R2 indexed by channel numbers; values taken + * from the reference driver. + */ +static const uint32_t ral_rf2522_r2[] = { + 0x307f6, 0x307fb, 0x30800, 0x30805, 0x3080a, 0x3080f, 0x30814, + 0x30819, 0x3081e, 0x30823, 0x30828, 0x3082d, 0x30832, 0x3083e +}; + +static const uint32_t ral_rf2523_r2[] = { + 0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d, + 0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346 +}; + +static const uint32_t ral_rf2524_r2[] = { + 0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d, + 0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346 +}; + +static const uint32_t ral_rf2525_r2[] = { + 0x20327, 0x20328, 0x20329, 0x2032a, 0x2032b, 0x2032c, 0x2032d, + 0x2032e, 0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20346 +}; + +static const uint32_t ral_rf2525_hi_r2[] = { + 0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20344, 0x20345, + 0x20346, 0x20347, 0x20348, 0x20349, 0x2034a, 0x2034b, 0x2034e +}; + +static const uint32_t ral_rf2525e_r2[] = { + 0x2044d, 0x2044e, 0x2044f, 0x20460, 0x20461, 0x20462, 0x20463, + 0x20464, 0x20465, 0x20466, 0x20467, 0x20468, 0x20469, 0x2046b +}; + +/* + * For dual-band RF, RF registers R1 and R4 also depend on channel number; + * values taken from the reference driver. + */ +static const struct { + uint8_t chan; + uint32_t r1; + uint32_t r2; + uint32_t r4; +} ral_rf5222[] = { + /* channels on the 2.4GHz band */ + { 1, 0x08808, 0x0044d, 0x00282 }, + { 2, 0x08808, 0x0044e, 0x00282 }, + { 3, 0x08808, 0x0044f, 0x00282 }, + { 4, 0x08808, 0x00460, 0x00282 }, + { 5, 0x08808, 0x00461, 0x00282 }, + { 6, 0x08808, 0x00462, 0x00282 }, + { 7, 0x08808, 0x00463, 0x00282 }, + { 8, 0x08808, 0x00464, 0x00282 }, + { 9, 0x08808, 0x00465, 0x00282 }, + { 10, 0x08808, 0x00466, 0x00282 }, + { 11, 0x08808, 0x00467, 0x00282 }, + { 12, 0x08808, 0x00468, 0x00282 }, + { 13, 0x08808, 0x00469, 0x00282 }, + { 14, 0x08808, 0x0046b, 0x00286 }, + + /* channels on the 5.2GHz band */ + { 36, 0x08804, 0x06225, 0x00287 }, + { 40, 0x08804, 0x06226, 0x00287 }, + { 44, 0x08804, 0x06227, 0x00287 }, + { 48, 0x08804, 0x06228, 0x00287 }, + { 52, 0x08804, 0x06229, 0x00287 }, + { 56, 0x08804, 0x0622a, 0x00287 }, + { 60, 0x08804, 0x0622b, 0x00287 }, + { 64, 0x08804, 0x0622c, 0x00287 }, + + { 100, 0x08804, 0x02200, 0x00283 }, + { 104, 0x08804, 0x02201, 0x00283 }, + { 108, 0x08804, 0x02202, 0x00283 }, + { 112, 0x08804, 0x02203, 0x00283 }, + { 116, 0x08804, 0x02204, 0x00283 }, + { 120, 0x08804, 0x02205, 0x00283 }, + { 124, 0x08804, 0x02206, 0x00283 }, + { 128, 0x08804, 0x02207, 0x00283 }, + { 132, 0x08804, 0x02208, 0x00283 }, + { 136, 0x08804, 0x02209, 0x00283 }, + { 140, 0x08804, 0x0220a, 0x00283 }, + + { 149, 0x08808, 0x02429, 0x00281 }, + { 153, 0x08808, 0x0242b, 0x00281 }, + { 157, 0x08808, 0x0242d, 0x00281 }, + { 161, 0x08808, 0x0242f, 0x00281 } +}; + +int +ral_attach(struct ral_softc *sc) +{ + struct ieee80211com *ic = &sc->sc_ic; + struct ifnet *ifp = &ic->ic_if; + uint32_t val; + int i; + + timeout_set(&sc->scan_ch, ral_next_scan, sc); + timeout_set(&sc->rssadapt_ch, ral_rssadapt_updatestats, sc); + + /* retrieve RT2560 revision */ + sc->asic_rev = RAL_READ(sc, RAL_CSR0); + + if (ral_read_eeprom(sc) != 0) { + printf(": could not read EEPROM\n"); + goto fail; + } + + /* + * Allocate Tx and Rx rings. + */ + if (ral_alloc_tx_ring(sc, &sc->txq, RAL_TX_RING_COUNT) != 0) { + printf(": could not allocate Tx ring\n"); + goto fail; + } + + if (ral_alloc_tx_ring(sc, &sc->atimq, RAL_ATIM_RING_COUNT) != 0) { + printf(": could not allocate ATIM ring\n"); + goto fail; + } + + if (ral_alloc_tx_ring(sc, &sc->prioq, RAL_PRIO_RING_COUNT) != 0) { + printf(": could not allocate Prio ring\n"); + goto fail; + } + + if (ral_alloc_tx_ring(sc, &sc->bcnq, RAL_BEACON_RING_COUNT) != 0) { + printf(": could not allocate Beacon ring\n"); + goto fail; + } + + if (ral_alloc_rx_ring(sc, &sc->rxq, RAL_RX_RING_COUNT) != 0) { + printf(": could not allocate Rx ring\n"); + goto fail; + } + + ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ + ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ + ic->ic_state = IEEE80211_S_INIT; + + /* set device capabilities */ + ic->ic_caps = IEEE80211_C_MONITOR | IEEE80211_C_IBSS | + IEEE80211_C_SHPREAMBLE | IEEE80211_C_PMGT | IEEE80211_C_TXPMGT | + IEEE80211_C_WEP; + + /* read MAC address */ + val = RAL_READ(sc, RAL_CSR3); + ic->ic_myaddr[0] = val & 0xff; + ic->ic_myaddr[1] = (val >> 8) & 0xff; + ic->ic_myaddr[2] = (val >> 16) & 0xff; + ic->ic_myaddr[3] = (val >> 24) & 0xff; + val = RAL_READ(sc, RAL_CSR4); + ic->ic_myaddr[4] = val & 0xff; + ic->ic_myaddr[5] = (val >> 8) & 0xff; + + printf(", address %s\n", ether_sprintf(ic->ic_myaddr)); + + if (sc->rf_rev == RAL_RF_5222) { + /* set supported .11a rates */ + ic->ic_sup_rates[IEEE80211_MODE_11A] = ral_rateset_11a; + + /* set supported .11a channels */ + for (i = 36; i <= 64; i += 4) { + ic->ic_channels[i].ic_freq = + ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); + ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; + } + for (i = 100; i <= 140; i += 4) { + ic->ic_channels[i].ic_freq = + ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); + ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; + } + for (i = 149; i <= 161; i += 4) { + ic->ic_channels[i].ic_freq = + ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); + ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; + } + } + + /* set supported .11b and .11g rates */ + ic->ic_sup_rates[IEEE80211_MODE_11B] = ral_rateset_11b; + ic->ic_sup_rates[IEEE80211_MODE_11G] = ral_rateset_11g; + + /* set supported .11b and .11g channels (1 through 14) */ + for (i = 1; i <= 11; i++) { + ic->ic_channels[i].ic_freq = + ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); + ic->ic_channels[i].ic_flags = + IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | + IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; + } + + /* IBSS channel undefined for now */ + ic->ic_ibss_chan = &ic->ic_channels[0]; + + ifp->if_softc = sc; + ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; + ifp->if_init = ral_init; + ifp->if_ioctl = ral_ioctl; + ifp->if_start = ral_start; + ifp->if_watchdog = ral_watchdog; + IFQ_SET_READY(&ifp->if_snd); + memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); + + if_attach(ifp); + ieee80211_ifattach(ifp); + /* override state transition machine */ + sc->sc_newstate = ic->ic_newstate; + ic->ic_newstate = ral_newstate; + ieee80211_media_init(ifp, ral_media_change, ieee80211_media_status); + +#if NBPFILTER > 0 + bpfattach(&sc->sc_drvbpf, ifp, DLT_IEEE802_11_RADIO, + sizeof (struct ieee80211_frame) + 64); + + sc->sc_rxtap_len = sizeof sc->sc_rxtapu; + sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); + sc->sc_rxtap.wr_ihdr.it_present = htole32(RAL_RX_RADIOTAP_PRESENT); + + sc->sc_txtap_len = sizeof sc->sc_txtapu; + sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); + sc->sc_txtap.wt_ihdr.it_present = htole32(RAL_TX_RADIOTAP_PRESENT); +#endif + + return 0; + +fail: /*ral_detach(sc);*/ + return ENXIO; +} + +int +ral_detach(struct ral_softc *sc) +{ + struct ifnet *ifp = &sc->sc_ic.ic_if; + + timeout_del(&sc->scan_ch); + timeout_del(&sc->rssadapt_ch); + +#if NBPFILTER > 0 + bpfdetach(ifp); +#endif + ieee80211_ifdetach(ifp); + if_detach(ifp); + + ral_free_tx_ring(sc, &sc->txq); + ral_free_tx_ring(sc, &sc->prioq); + ral_free_tx_ring(sc, &sc->atimq); + ral_free_tx_ring(sc, &sc->bcnq); + ral_free_rx_ring(sc, &sc->rxq); + + return 0; +} + +int +ral_alloc_tx_ring(struct ral_softc *sc, struct ral_tx_ring *ring, int count) +{ + int i, nsegs, error; + + ring->count = count; + ring->queued = 0; + ring->cur = ring->next = 0; + ring->cur_encrypt = ring->next_encrypt = 0; + + error = bus_dmamap_create(sc->sc_dmat, count * RAL_TX_DESC_SIZE, 1, + count * RAL_TX_DESC_SIZE, 0, BUS_DMA_NOWAIT, &ring->map); + if (error != 0) { + printf("%s: could not create desc DMA map\n", + sc->sc_dev.dv_xname); + goto fail; + } + + error = bus_dmamem_alloc(sc->sc_dmat, count * RAL_TX_DESC_SIZE, + PAGE_SIZE, 0, &ring->seg, 1, &nsegs, BUS_DMA_NOWAIT); + if (error != 0) { + printf("%s: could not allocate DMA memory\n", + sc->sc_dev.dv_xname); + goto fail; + } + + error = bus_dmamem_map(sc->sc_dmat, &ring->seg, nsegs, + count * RAL_TX_DESC_SIZE, (caddr_t *)&ring->desc, BUS_DMA_NOWAIT); + if (error != 0) { + printf("%s: could not map desc DMA memory\n", + sc->sc_dev.dv_xname); + goto fail; + } + + error = bus_dmamap_load(sc->sc_dmat, ring->map, ring->desc, + count * RAL_TX_DESC_SIZE, NULL, BUS_DMA_NOWAIT); + if (error != 0) { + printf("%s: could not load desc DMA map\n", + sc->sc_dev.dv_xname); + goto fail; + } + + memset(ring->desc, 0, count * RAL_TX_DESC_SIZE); + ring->physaddr = ring->map->dm_segs->ds_addr; + + ring->data = malloc(count * sizeof (struct ral_tx_data), M_DEVBUF, + M_NOWAIT); + if (ring->data == NULL) { + printf("%s: could not allocate soft data\n", + sc->sc_dev.dv_xname); + error = ENOMEM; + goto fail; + } + + for (i = 0; i < count; i++) { + error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, + RAL_MAX_SCATTER, MCLBYTES, 0, BUS_DMA_NOWAIT, + &ring->data[i].map); + if (error != 0) { + printf("%s: could not create DMA map\n", + sc->sc_dev.dv_xname); + goto fail; + } + } + + return 0; + +fail: ral_free_tx_ring(sc, ring); + return error; +} + +void +ral_reset_tx_ring(struct ral_softc *sc, struct ral_tx_ring *ring) +{ + struct ieee80211com *ic = &sc->sc_ic; + struct ral_tx_desc *desc; + struct ral_tx_data *data; + int i; + + for (i = 0; i < ring->count; i++) { + desc = &ring->desc[i]; + data = &ring->data[i]; + + if (data->m != NULL) { + bus_dmamap_sync(sc->sc_dmat, data->map, 0, + data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); + bus_dmamap_unload(sc->sc_dmat, data->map); + m_freem(data->m); + data->m = NULL; + } + + if (data->ni != NULL && data->ni != ic->ic_bss) { + ieee80211_free_node(ic, data->ni); + data->ni = NULL; + } + + desc->flags = 0; + } + + bus_dmamap_sync(sc->sc_dmat, ring->map, 0, ring->map->dm_mapsize, + BUS_DMASYNC_PREWRITE); + + ring->queued = 0; + ring->cur = ring->next = 0; + ring->cur_encrypt = ring->next_encrypt = 0; +} + +void +ral_free_tx_ring(struct ral_softc *sc, struct ral_tx_ring *ring) +{ + struct ieee80211com *ic = &sc->sc_ic; + struct ral_tx_data *data; + int i; + + if (ring->desc != NULL) { + bus_dmamap_sync(sc->sc_dmat, ring->map, 0, + ring->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); + bus_dmamap_unload(sc->sc_dmat, ring->map); + bus_dmamem_free(sc->sc_dmat, &ring->seg, 1); + } + + if (ring->data != NULL) { + for (i = 0; i < ring->count; i++) { + data = &ring->data[i]; + + if (data->m != NULL) { + bus_dmamap_sync(sc->sc_dmat, data->map, 0, + data->map->dm_mapsize, + BUS_DMASYNC_POSTWRITE); + bus_dmamap_unload(sc->sc_dmat, data->map); + m_freem(data->m); + } + + if (data->ni != NULL && data->ni != ic->ic_bss) + ieee80211_free_node(ic, data->ni); + + if (data->map != NULL) + bus_dmamap_destroy(sc->sc_dmat, data->map); + } + free(ring->data, M_DEVBUF); + } +} + +int +ral_alloc_rx_ring(struct ral_softc *sc, struct ral_rx_ring *ring, int count) +{ + struct ral_rx_desc *desc; + struct ral_rx_data *data; + int i, nsegs, error; + + ring->count = count; + ring->cur = ring->next = 0; + ring->cur_decrypt = 0; + + error = bus_dmamap_create(sc->sc_dmat, count * RAL_RX_DESC_SIZE, 1, + count * RAL_RX_DESC_SIZE, 0, BUS_DMA_NOWAIT, &ring->map); + if (error != 0) { + printf("%s: could not create desc DMA map\n", + sc->sc_dev.dv_xname); + goto fail; + } + + error = bus_dmamem_alloc(sc->sc_dmat, count * RAL_RX_DESC_SIZE, + PAGE_SIZE, 0, &ring->seg, 1, &nsegs, BUS_DMA_NOWAIT); + if (error != 0) { + printf("%s: could not allocate DMA memory\n", + sc->sc_dev.dv_xname); + goto fail; + } + + error = bus_dmamem_map(sc->sc_dmat, &ring->seg, nsegs, + count * RAL_RX_DESC_SIZE, (caddr_t *)&ring->desc, BUS_DMA_NOWAIT); + if (error != 0) { + printf("%s: could not map desc DMA memory\n", + sc->sc_dev.dv_xname); + goto fail; + } + + error = bus_dmamap_load(sc->sc_dmat, ring->map, ring->desc, + count * RAL_RX_DESC_SIZE, NULL, BUS_DMA_NOWAIT); + if (error != 0) { + printf("%s: could not load desc DMA map\n", + sc->sc_dev.dv_xname); + goto fail; + } + + memset(ring->desc, 0, count * RAL_RX_DESC_SIZE); + ring->physaddr = ring->map->dm_segs->ds_addr; + + ring->data = malloc(count * sizeof (struct ral_rx_data), M_DEVBUF, + M_NOWAIT); + if (ring->data == NULL) { + printf("%s: could not allocate soft data\n", + sc->sc_dev.dv_xname); + error = ENOMEM; + goto fail; + } + + /* + * Pre-allocate Rx buffers and populate Rx ring + */ + for (i = 0; i < count; i++) { + desc = &sc->rxq.desc[i]; + data = &sc->rxq.data[i]; + + error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, + 0, BUS_DMA_NOWAIT, &data->map); + if (error != 0) { + printf("%s: could not create DMA map\n", + sc->sc_dev.dv_xname); + goto fail; + } + + MGETHDR(data->m, M_DONTWAIT, MT_DATA); + if (data->m == NULL) { + printf("%s: could not allocate rx mbuf\n", + sc->sc_dev.dv_xname); + error = ENOMEM; + goto fail; + } + + MCLGET(data->m, M_DONTWAIT); + if (!(data->m->m_flags & M_EXT)) { + m_freem(data->m); + printf("%s: could not allocate rx mbuf cluster\n", + sc->sc_dev.dv_xname); + error = ENOMEM; + goto fail; + } + + error = bus_dmamap_load(sc->sc_dmat, data->map, + mtod(data->m, void *), MCLBYTES, NULL, BUS_DMA_NOWAIT); + if (error != 0) { + printf("%s: could not load rx buf DMA map", + sc->sc_dev.dv_xname); + goto fail; + } + + desc->flags = htole32(RAL_RX_BUSY); + desc->physaddr = htole32(data->map->dm_segs->ds_addr); + } + + bus_dmamap_sync(sc->sc_dmat, ring->map, 0, ring->map->dm_mapsize, + BUS_DMASYNC_PREWRITE); + + return 0; + +fail: ral_free_rx_ring(sc, ring); + return error; +} + +void +ral_reset_rx_ring(struct ral_softc *sc, struct ral_rx_ring *ring) +{ + int i; + + for (i = 0; i < ring->count; i++) { + ring->desc[i].flags = htole32(RAL_RX_BUSY); + ring->data[i].drop = 0; + } + + bus_dmamap_sync(sc->sc_dmat, ring->map, 0, ring->map->dm_mapsize, + BUS_DMASYNC_PREWRITE); + + ring->cur = ring->next = 0; + ring->cur_decrypt = 0; +} + +void +ral_free_rx_ring(struct ral_softc *sc, struct ral_rx_ring *ring) +{ + struct ral_rx_data *data; + int i; + + if (ring->desc != NULL) { + bus_dmamap_sync(sc->sc_dmat, ring->map, 0, + ring->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); + bus_dmamap_unload(sc->sc_dmat, ring->map); + bus_dmamem_free(sc->sc_dmat, &ring->seg, 1); + } + + if (ring->data != NULL) { + for (i = 0; i < ring->count; i++) { + data = &ring->data[i]; + + if (data->m != NULL) { + bus_dmamap_sync(sc->sc_dmat, data->map, 0, + data->map->dm_mapsize, + BUS_DMASYNC_POSTREAD); + bus_dmamap_unload(sc->sc_dmat, data->map); + m_freem(data->m); + } + + if (data->map != NULL) + bus_dmamap_destroy(sc->sc_dmat, data->map); + } + free(ring->data, M_DEVBUF); + } +} + +int +ral_media_change(struct ifnet *ifp) +{ + int error; + + error = ieee80211_media_change(ifp); + if (error != ENETRESET) + return error; + + if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) + ral_init(ifp); + + return 0; +} + +/* + * This function is called periodically (every 200ms) during scanning to + * switch from one channel to another. + */ +void +ral_next_scan(void *arg) +{ + struct ral_softc *sc = arg; + struct ieee80211com *ic = &sc->sc_ic; + struct ifnet *ifp = &ic->ic_if; + + if (ic->ic_state == IEEE80211_S_SCAN) + ieee80211_next_scan(ifp); +} + +/* + * This function is called periodically (every 100ms) in RUN state to update + * the rate adaptation statistics. + */ +void +ral_rssadapt_updatestats(void *arg) +{ + struct ral_softc *sc = arg; + + ieee80211_rssadapt_updatestats(&sc->rssadapt); + + timeout_add(&sc->rssadapt_ch, hz / 10); +} + +int +ral_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) +{ + struct ral_softc *sc = ic->ic_if.if_softc; + enum ieee80211_state ostate; + + ostate = ic->ic_state; + timeout_del(&sc->scan_ch); + + switch (nstate) { + case IEEE80211_S_INIT: + timeout_del(&sc->rssadapt_ch); + + switch (ostate) { + case IEEE80211_S_RUN: + /* abort TSF synchronization */ + RAL_WRITE(sc, RAL_CSR14, 0); + + /* turn activity led off */ + if (sc->led_mode != RAL_LED_MODE_SINGLE) + ral_update_led(sc, 0, 0); + + sc->sc_newstate(ic, nstate, arg); + break; + + default: + sc->sc_newstate(ic, nstate, arg); + } + break; + + case IEEE80211_S_SCAN: + ral_set_chan(sc, ic->ic_bss->ni_chan); + timeout_add(&sc->scan_ch, hz / 5); + sc->sc_newstate(ic, nstate, arg); + break; + + case IEEE80211_S_AUTH: + ral_set_chan(sc, ic->ic_bss->ni_chan); + sc->sc_newstate(ic, nstate, arg); + break; + + case IEEE80211_S_ASSOC: + sc->sc_newstate(ic, nstate, arg); + break; + + case IEEE80211_S_RUN: + ral_set_bssid(sc, ic->ic_bss->ni_bssid); + + ral_enable_tsf_sync(sc); + + if (sc->led_mode != RAL_LED_MODE_SINGLE) + ral_update_led(sc, 1, 0); + + timeout_add(&sc->rssadapt_ch, hz / 10); + + sc->sc_newstate(ic, nstate, arg); + break; + } + + return 0; +} + +/* + * Read 16 bits at address 'addr' from the serial EEPROM (either 93C46 or + * 93C66). + */ +uint16_t +ral_eeprom_read(struct ral_softc *sc, uint8_t addr) +{ + uint32_t tmp; + uint16_t val; + int n; + + /* Clock C once before the first command */ + RAL_EEPROM_CTL(sc, 0); + + RAL_EEPROM_CTL(sc, RAL_EEPROM_S); + RAL_EEPROM_CTL(sc, RAL_EEPROM_S | RAL_EEPROM_C); + RAL_EEPROM_CTL(sc, RAL_EEPROM_S); + + /* Write start bit (1) */ + RAL_EEPROM_CTL(sc, RAL_EEPROM_S | RAL_EEPROM_D); + RAL_EEPROM_CTL(sc, RAL_EEPROM_S | RAL_EEPROM_D | RAL_EEPROM_C); + + /* Write READ opcode (10) */ + RAL_EEPROM_CTL(sc, RAL_EEPROM_S | RAL_EEPROM_D); + RAL_EEPROM_CTL(sc, RAL_EEPROM_S | RAL_EEPROM_D | RAL_EEPROM_C); + RAL_EEPROM_CTL(sc, RAL_EEPROM_S); + RAL_EEPROM_CTL(sc, RAL_EEPROM_S | RAL_EEPROM_C); + + /* Write address (A5-A0 or A7-A0) */ + n = (RAL_READ(sc, RAL_CSR21) & RAL_CSR21_93C46) ? 5 : 7; + for (; n >= 0; n--) { + RAL_EEPROM_CTL(sc, RAL_EEPROM_S | + (((addr >> n) & 1) << RAL_EEPROM_SHIFT_D)); + RAL_EEPROM_CTL(sc, RAL_EEPROM_S | + (((addr >> n) & 1) << RAL_EEPROM_SHIFT_D) | RAL_EEPROM_C); + } + + RAL_EEPROM_CTL(sc, RAL_EEPROM_S); + + /* Read data Q15-Q0 */ + val = 0; + for (n = 15; n >= 0; n--) { + RAL_EEPROM_CTL(sc, RAL_EEPROM_S | RAL_EEPROM_C); + tmp = RAL_READ(sc, RAL_CSR21); + val |= ((tmp & RAL_EEPROM_Q) >> RAL_EEPROM_SHIFT_Q) << n; + RAL_EEPROM_CTL(sc, RAL_EEPROM_S); + } + + RAL_EEPROM_CTL(sc, 0); + + /* Clear Chip Select and clock C */ + RAL_EEPROM_CTL(sc, RAL_EEPROM_S); + RAL_EEPROM_CTL(sc, 0); + RAL_EEPROM_CTL(sc, RAL_EEPROM_C); + + return letoh16(val); +} + +/* + * Some frames have been processed by the hardware cipher engine and are ready + * for transmission. + */ +void +ral_encryption_intr(struct ral_softc *sc) +{ + struct ral_tx_desc *desc; + int hw; + + /* retrieve last descriptor index processed by cipher engine */ + hw = (RAL_READ(sc, RAL_SECCSR1) - sc->txq.physaddr) / RAL_TX_DESC_SIZE; + + for (; sc->txq.next_encrypt != hw;) { + desc = &sc->txq.desc[sc->txq.next_encrypt]; + + bus_dmamap_sync(sc->sc_dmat, sc->txq.map, + sc->txq.next_encrypt * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE, + BUS_DMASYNC_POSTREAD); + + if ((letoh32(desc->flags) & RAL_TX_BUSY) || + (letoh32(desc->flags) & RAL_TX_CIPHER_BUSY)) + break; + + /* for TKIP, swap eiv field to fix a bug in ASIC */ + if ((letoh32(desc->flags) & RAL_TX_CIPHER_MASK) == + RAL_TX_CIPHER_TKIP) + desc->eiv = swap32(desc->eiv); + + /* mark the frame ready for transmission */ + desc->flags |= htole32(RAL_TX_BUSY | RAL_TX_VALID); + + bus_dmamap_sync(sc->sc_dmat, sc->txq.map, + sc->txq.next_encrypt * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE, + BUS_DMASYNC_PREWRITE); + + DPRINTFN(5, ("encryption done idx=%u\n", sc->txq.next_encrypt)); + + sc->txq.next_encrypt = + (sc->txq.next_encrypt + 1) % RAL_TX_RING_COUNT; + } + + /* kick Tx */ + RAL_WRITE(sc, RAL_TXCSR0, RAL_TXCSR0_KICK_TX); +} + +void +ral_tx_intr(struct ral_softc *sc) +{ + struct ieee80211com *ic = &sc->sc_ic; + struct ifnet *ifp = &ic->ic_if; + struct ral_tx_desc *desc; + struct ral_tx_data *data; + + for (;;) { + desc = &sc->txq.desc[sc->txq.next]; + data = &sc->txq.data[sc->txq.next]; + + bus_dmamap_sync(sc->sc_dmat, sc->txq.map, + sc->txq.next * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE, + BUS_DMASYNC_POSTREAD); + + if ((letoh32(desc->flags) & RAL_TX_BUSY) || + (letoh32(desc->flags) & RAL_TX_CIPHER_BUSY) || + !(letoh32(desc->flags) & RAL_TX_VALID)) + break; + + switch (letoh32(desc->flags) & RAL_TX_RESULT_MASK) { + case RAL_TX_SUCCESS: + DPRINTFN(10, ("data frame sent successfully\n")); + ieee80211_rssadapt_raise_rate(ic, &sc->rssadapt, + &data->id); + break; + + case RAL_TX_SUCCESS_RETRY: + DPRINTFN(2, ("data frame sent after %u retries\n", + (letoh32(desc->flags) >> 5) & 0x7)); + ieee80211_rssadapt_lower_rate(ic, data->ni, + &sc->rssadapt, &data->id); + break; + + case RAL_TX_FAIL_RETRY: + DPRINTFN(2, ("sending data frame failed (too much " + "retries)\n")); + ieee80211_rssadapt_lower_rate(ic, data->ni, + &sc->rssadapt, &data->id); + break; + + case RAL_TX_FAIL_INVALID: + case RAL_TX_FAIL_OTHER: + default: + printf("%s: sending data frame failed 0x%08x\n", + sc->sc_dev.dv_xname, letoh32(desc->flags)); + } + + bus_dmamap_sync(sc->sc_dmat, data->map, 0, + data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); + bus_dmamap_unload(sc->sc_dmat, data->map); + m_freem(data->m); + data->m = NULL; + if (data->ni == ic->ic_bss) + ieee80211_unref_node(&data->ni); + else + ieee80211_free_node(ic, data->ni); + data->ni = NULL; + + /* descriptor is no longer valid */ + desc->flags &= ~htole32(RAL_TX_VALID); + + bus_dmamap_sync(sc->sc_dmat, sc->txq.map, + sc->txq.next * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE, + BUS_DMASYNC_PREWRITE); + + DPRINTFN(5, ("tx done idx=%u\n", sc->txq.next)); + + sc->txq.queued--; + sc->txq.next = (sc->txq.next + 1) % RAL_TX_RING_COUNT; + } + + sc->sc_tx_timer = 0; + ifp->if_flags &= ~IFF_OACTIVE; + ral_start(ifp); +} + +void +ral_prio_intr(struct ral_softc *sc) +{ + struct ieee80211com *ic = &sc->sc_ic; + struct ifnet *ifp = &ic->ic_if; + struct ral_tx_desc *desc; + struct ral_tx_data *data; + + for (;;) { + desc = &sc->prioq.desc[sc->prioq.next]; + data = &sc->prioq.data[sc->prioq.next]; + + bus_dmamap_sync(sc->sc_dmat, sc->prioq.map, + sc->prioq.next * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE, + BUS_DMASYNC_POSTREAD); + + if ((letoh32(desc->flags) & RAL_TX_BUSY) || + !(letoh32(desc->flags) & RAL_TX_VALID)) + break; + + switch (letoh32(desc->flags) & RAL_TX_RESULT_MASK) { + case RAL_TX_SUCCESS: + DPRINTFN(10, ("mgt frame sent successfully\n")); + break; + + case RAL_TX_SUCCESS_RETRY: + DPRINTFN(10, ("mgt frame sent after %u retries\n", + (letoh32(desc->flags) >> 5) & 0x7)); + break; + + case RAL_TX_FAIL_RETRY: + DPRINTFN(10, ("sending mgt frame failed (too much " + "retries)\n")); + break; + + case RAL_TX_FAIL_INVALID: + case RAL_TX_FAIL_OTHER: + default: + printf("%s: sending mgt frame failed 0x%08x\n", + sc->sc_dev.dv_xname, letoh32(desc->flags)); + } + + bus_dmamap_sync(sc->sc_dmat, data->map, 0, + data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); + bus_dmamap_unload(sc->sc_dmat, data->map); + m_freem(data->m); + data->m = NULL; + if (data->ni == ic->ic_bss) + ieee80211_unref_node(&data->ni); + else + ieee80211_free_node(ic, data->ni); + data->ni = NULL; + + /* descriptor is no longer valid */ + desc->flags &= ~htole32(RAL_TX_VALID); + + bus_dmamap_sync(sc->sc_dmat, sc->prioq.map, + sc->prioq.next * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE, + BUS_DMASYNC_PREWRITE); + + DPRINTFN(5, ("prio done idx=%u\n", sc->prioq.next)); + + sc->prioq.queued--; + sc->prioq.next = (sc->prioq.next + 1) % RAL_PRIO_RING_COUNT; + } + + sc->sc_tx_timer = 0; + ifp->if_flags &= ~IFF_OACTIVE; + ral_start(ifp); +} + +/* + * Some frames were processed by the hardware cipher engine and are ready for + * transmission to the IEEE802.11 layer. + */ +void +ral_decryption_intr(struct ral_softc *sc) +{ + struct ieee80211com *ic = &sc->sc_ic; + struct ifnet *ifp = &ic->ic_if; + struct ral_rx_desc *desc; + struct ral_rx_data *data; + struct ieee80211_frame *wh; + struct ieee80211_node *ni; + struct mbuf *m; + int hw, error; + + /* retrieve last decriptor index processed by cipher engine */ + hw = (RAL_READ(sc, RAL_SECCSR0) - sc->rxq.physaddr) / RAL_RX_DESC_SIZE; + + for (; sc->rxq.cur_decrypt != hw;) { + desc = &sc->rxq.desc[sc->rxq.cur_decrypt]; + data = &sc->rxq.data[sc->rxq.cur_decrypt]; + + bus_dmamap_sync(sc->sc_dmat, sc->rxq.map, + sc->rxq.cur_decrypt * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE, + BUS_DMASYNC_POSTREAD); + + if ((letoh32(desc->flags) & RAL_RX_BUSY) || + (letoh32(desc->flags) & RAL_RX_CIPHER_BUSY)) + break; + + if (data->drop) + goto skip; + + if ((letoh32(desc->flags) & RAL_RX_CIPHER_MASK) != 0 && + (letoh32(desc->flags) & RAL_RX_ICV_ERROR)) + goto skip; + + bus_dmamap_sync(sc->sc_dmat, data->map, 0, + data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); + bus_dmamap_unload(sc->sc_dmat, data->map); + + /* get timestamp (high and low 32 bits) */ + RAL_READ(sc, RAL_CSR17); + RAL_READ(sc, RAL_CSR16); + + /* finalize mbuf */ + m = data->m; + m->m_pkthdr.rcvif = ifp; + m->m_pkthdr.len = m->m_len = + (letoh32(desc->flags) >> 16) & 0xfff; + + wh = mtod(m, struct ieee80211_frame *); + ni = ieee80211_find_rxnode(ic, wh); + + /* send the frame to the 802.11 layer */ + ieee80211_input(ifp, m, ni, desc->rssi, 0); + + /* give rssi to the rate adatation algorithm */ + ieee80211_rssadapt_input(ic, ni, &sc->rssadapt, desc->rssi); + + MGETHDR(data->m, M_DONTWAIT, MT_DATA); + if (data->m == NULL) { + printf("%s: could not allocate rx mbuf\n", + sc->sc_dev.dv_xname); + break; + } + + MCLGET(data->m, M_DONTWAIT); + if (!(data->m->m_flags & M_EXT)) { + printf("%s: could not allocate rx mbuf cluster\n", + sc->sc_dev.dv_xname); + m_freem(data->m); + data->m = NULL; + break; + } + + error = bus_dmamap_load(sc->sc_dmat, data->map, + mtod(data->m, void *), MCLBYTES, NULL, BUS_DMA_NOWAIT); + if (error != 0) { + printf("%s: could not load rx buf DMA map\n", + sc->sc_dev.dv_xname); + m_freem(data->m); + data->m = NULL; + break; + } + + desc->physaddr = htole32(data->map->dm_segs->ds_addr); +skip: desc->flags = htole32(RAL_RX_BUSY); + + bus_dmamap_sync(sc->sc_dmat, sc->rxq.map, + sc->rxq.cur_decrypt * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE, + BUS_DMASYNC_PREWRITE); + + DPRINTFN(15, ("decryption done idx=%u\n", sc->rxq.cur_decrypt)); + + sc->rxq.cur_decrypt = + (sc->rxq.cur_decrypt + 1) % RAL_RX_RING_COUNT; + } +} + +/* + * Some frames were received. Pass them to the hardware cipher engine before + * sending them to the 802.11 layer. + */ +void +ral_rx_intr(struct ral_softc *sc) +{ + struct ral_rx_desc *desc; + struct ral_rx_data *data; + + for (;;) { + desc = &sc->rxq.desc[sc->rxq.cur]; + data = &sc->rxq.data[sc->rxq.cur]; + + bus_dmamap_sync(sc->sc_dmat, sc->rxq.map, + sc->rxq.cur * RAL_RX_DESC_SIZE, RAL_RX_DESC_SIZE, + BUS_DMASYNC_POSTREAD); + + if ((letoh32(desc->flags) & RAL_RX_BUSY) || + (letoh32(desc->flags) & RAL_RX_CIPHER_BUSY)) + break; + + data->drop = 0; + + if ((letoh32(desc->flags) & RAL_RX_PHY_ERROR) || + (letoh32(desc->flags) & RAL_RX_CRC_ERROR)) { + /* + * this should not happen since we did not request + * to receive those frames when we filled RXCSR0 + */ + DPRINTFN(5, ("PHY or CRC error flags 0x%08x\n", + letoh32(desc->flags))); + data->drop = 1; + } + + if (((letoh32(desc->flags) >> 16) & 0xfff) > MCLBYTES) { + DPRINTFN(5, ("bad length\n")); + data->drop = 1; + } + + /* mark the frame for decryption */ + desc->flags |= htole32(RAL_RX_CIPHER_BUSY); + + bus_dmamap_sync(sc->sc_dmat, sc->rxq.map, + sc->rxq.cur * RAL_RX_DESC_SIZE, RAL_RX_DESC_SIZE, + BUS_DMASYNC_PREWRITE); + + DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); + + sc->rxq.cur = (sc->rxq.cur + 1) % RAL_RX_RING_COUNT; + } + + /* kick decrypt */ + RAL_WRITE(sc, RAL_SECCSR0, RAL_SECCSR0_KICK); +} + +/* + * This function is called periodically in IBSS mode when a new beacon must be + * sent out. + */ +void +ral_beacon_expire(struct ral_softc *sc) +{ + struct ieee80211com *ic = &sc->sc_ic; + struct ral_tx_data *data; + + if (ic->ic_opmode != IEEE80211_M_IBSS) + return; + + data = &sc->bcnq.data[sc->bcnq.next]; + + bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, + BUS_DMASYNC_POSTWRITE); + bus_dmamap_unload(sc->sc_dmat, data->map); +#if 0 + ieee80211_beacon_update(ic, data->ni, &sc->sc_bo, data->m, 1); + ral_tx_bcn(sc, data->m, data->ni); +#endif + DPRINTFN(15, ("beacon expired\n")); + + sc->bcnq.next = (sc->bcnq.next + 1) % RAL_BEACON_RING_COUNT; +} + +void +ral_wakeup_expire(struct ral_softc *sc) +{ + DPRINTFN(10, ("wakeup expired\n")); +} + +int +ral_intr(void *arg) +{ + struct ral_softc *sc = arg; + uint32_t r; + + /* disable interrupts */ + RAL_WRITE(sc, RAL_CSR8, 0xffffffff); + + r = RAL_READ(sc, RAL_CSR7); + RAL_WRITE(sc, RAL_CSR7, r); + + if (r & RAL_CSR7_BEACON_EXPIRE) + ral_beacon_expire(sc); + + if (r & RAL_CSR7_WAKEUP_EXPIRE) + ral_wakeup_expire(sc); + + if (r & RAL_CSR7_ENCRYPTION_DONE) + ral_encryption_intr(sc); + + if (r & RAL_CSR7_TX_DONE) + ral_tx_intr(sc); + + if (r & RAL_CSR7_PRIO_DONE) + ral_prio_intr(sc); + + if (r & RAL_CSR7_DECRYPTION_DONE) + ral_decryption_intr(sc); + + if (r & RAL_CSR7_RX_DONE) + ral_rx_intr(sc); + + /* re-enable interrupts */ + RAL_WRITE(sc, RAL_CSR8, RAL_CSR8_MASK); + + return 1; +} + +uint8_t +ral_plcp_signal(int rate) +{ + switch (rate) { + /* CCK rates (returned values are device-dependent) */ + case 2: return 0x0; + case 4: return 0x1; + case 11: return 0x2; + case 22: return 0x3; + + /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ + case 12: return 0xb; + case 18: return 0xf; + case 24: return 0xa; + case 36: return 0xe; + case 48: return 0x9; + case 72: return 0xd; + case 96: return 0x8; + case 108: return 0xc; + + /* unsupported rates (should not get there) */ + default: return 0xff; + } +} + +#if 0 +#define RAL_RATE_IS_OFDM(rate) (((rate) % 3) == 0) +#else +/* quickly determine if a rate is CCK or OFDM */ +#define RAL_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22) +#endif + +#if 0 +int +ral_tx_bcn(struct ral_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) +{ + struct ieee80211com *ic = &sc->sc_ic; + struct ral_tx_desc *desc; + struct ral_tx_data *data; + struct ieee80211_frame *wh; + struct ieee80211_duration d0, dn; + int npkt, error; + + desc = &sc->bcnq.desc[sc->bcnq.cur]; + data = &sc->bcnq.data[sc->bcnq.cur]; + + wh = mtod(m0, struct ieee80211_frame *); + + /* XXX beacons are always sent at 2Mbps */ + error = ieee80211_compute_duration(wh, m0->m_pkthdr.len, ic->ic_flags, + ic->ic_fragthreshold, 4, &d0, &dn, &npkt, + ifp->if_flags & IFF_DEBUG); + if (error != 0) { + printf("%s: could not compute duration\n", sc->sc_dev.dv_xname); + m_freem(m0); + return error; + } + + error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, + BUS_DMA_NOWAIT); + if (error != 0) { + printf("%s: could not map mbuf (error %d)\n", + sc->sc_dev.dv_xname, error); + m_freem(m0); + return error; + } + + data->m = m0; + data->ni = ni; + + desc->physaddr = htole32(data->map->dm_segs->ds_addr); + + desc->flags = htole32(RAL_TX_VALID | RAL_TX_BUSY | + RAL_TX_INSERT_TIMESTAMP | RAL_TX_IFS_NEW_BACKOFF); + desc->flags |= htole32(m0->m_pkthdr.len) << 16; + + desc->wme = htole32( + 8 << RAL_WME_CWMAX_BITS_SHIFT | + 3 << RAL_WME_CWMIN_BITS_SHIFT | + 2 << RAL_WME_AIFSN_BITS_SHIFT); + + desc->plcp_length = htole16(d0.d_plcp_len); + desc->plcp_service = 4; + desc->plcp_signal = ral_plcp_signal(4); + if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) + desc->plcp_signal |= 0x8; + + bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, + BUS_DMASYNC_PREWRITE); + bus_dmamap_sync(sc->sc_dmat, sc->bcnq.map, + sc->bcnq.cur * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE, + BUS_DMASYNC_PREWRITE); + + sc->bcnq.cur = (sc->bcnq.cur + 1) % RAL_BEACON_RING_COUNT; + + return 0; +} +#endif + +int +ral_tx_mgt(struct ral_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) +{ + struct ieee80211com *ic = &sc->sc_ic; + struct ifnet *ifp = &ic->ic_if; + struct ral_tx_desc *desc; + struct ral_tx_data *data; + struct ieee80211_frame *wh; + struct ieee80211_duration d0, dn; + int npkt, error; + + desc = &sc->prioq.desc[sc->prioq.cur]; + data = &sc->prioq.data[sc->prioq.cur]; + + wh = mtod(m0, struct ieee80211_frame *); + + /* XXX management frames are always sent at 2Mbps */ + error = ieee80211_compute_duration(wh, m0->m_pkthdr.len, ic->ic_flags, + ic->ic_fragthreshold, 4, &d0, &dn, &npkt, + ifp->if_flags & IFF_DEBUG); + if (error != 0) { + printf("%s: could not compute duration\n", sc->sc_dev.dv_xname); + m_freem(m0); + return error; + } + + error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, + BUS_DMA_NOWAIT); + if (error != 0) { + printf("%s: could not map mbuf (error %d)\n", + sc->sc_dev.dv_xname, error); + m_freem(m0); + return error; + } + + data->m = m0; + data->ni = ni; + + desc->physaddr = htole32(data->map->dm_segs->ds_addr); + + desc->flags = htole32(RAL_TX_VALID | RAL_TX_BUSY); + desc->flags |= htole32(m0->m_pkthdr.len) << 16; + + if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { + desc->flags |= htole32(RAL_TX_NEED_ACK); + + *(uint16_t *)wh->i_dur = htole16(d0.d_data_dur); + + if ((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == + IEEE80211_FC0_SUBTYPE_PROBE_RESP) + desc->flags |= htole32(RAL_TX_INSERT_TIMESTAMP); + } + + desc->wme = htole32( + 8 << RAL_WME_CWMAX_BITS_SHIFT | + 3 << RAL_WME_CWMIN_BITS_SHIFT | + 2 << RAL_WME_AIFSN_BITS_SHIFT); + + desc->plcp_length = htole16(d0.d_plcp_len); + desc->plcp_service = 4; + desc->plcp_signal = ral_plcp_signal(4); + if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) + desc->plcp_signal |= 0x8; + + bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, + BUS_DMASYNC_PREWRITE); + bus_dmamap_sync(sc->sc_dmat, sc->prioq.map, + sc->prioq.cur * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE, + BUS_DMASYNC_PREWRITE); + + DPRINTFN(10, ("sending mgt frame len=%u idx=%u duration=%u plcp=%u\n", + m0->m_pkthdr.len, sc->prioq.cur, d0.d_data_dur, d0.d_plcp_len)); + + /* kick prio */ + sc->prioq.queued++; + sc->prioq.cur = (sc->prioq.cur + 1) % RAL_PRIO_RING_COUNT; + RAL_WRITE(sc, RAL_TXCSR0, RAL_TXCSR0_KICK_PRIO); + + return 0; +} + +int +ral_tx_data(struct ral_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) +{ + struct ieee80211com *ic = &sc->sc_ic; + struct ifnet *ifp = &ic->ic_if; + struct ral_tx_desc *desc; + struct ral_tx_data *data; + struct ieee80211_frame *wh; + struct ieee80211_frame_rts *rts; + struct ieee80211_duration d0, dn; + struct mbuf *m, *mnew; + int npkt, error; + + wh = mtod(m0, struct ieee80211_frame *); + + ni->ni_txrate = ieee80211_rssadapt_choose(&sc->rssadapt, &ni->ni_rates, + wh, m0->m_pkthdr.len, ic->ic_fixed_rate, NULL, 0); + + error = ieee80211_compute_duration(wh, m0->m_pkthdr.len, ic->ic_flags, + ic->ic_fragthreshold, ni->ni_rates.rs_rates[ni->ni_txrate], &d0, + &dn, &npkt, ifp->if_flags & IFF_DEBUG); + if (error != 0) { + printf("%s: could not compute duration\n", sc->sc_dev.dv_xname); + m_freem(m0); + return error; + } + + if (m0->m_pkthdr.len > ic->ic_rtsthreshold) { + desc = &sc->txq.desc[sc->txq.cur_encrypt]; + data = &sc->txq.data[sc->txq.cur_encrypt]; + + /* switch to long retry */ + /* switch to frame gap SIFS */ + + MGETHDR(m, M_DONTWAIT, MT_DATA); + if (m == NULL) { + printf("%s: could not allocate RTS/CTS frame\n", + sc->sc_dev.dv_xname); + return ENOMEM; + } + + rts = mtod(m, struct ieee80211_frame_rts *); + rts->i_fc[0] = IEEE80211_FC0_TYPE_CTL | + IEEE80211_FC0_SUBTYPE_RTS; + *(uint16_t *)rts->i_dur = htole16(d0.d_rts_dur); + memcpy(rts->i_ra, wh->i_addr1, IEEE80211_ADDR_LEN); + memcpy(rts->i_ta, wh->i_addr2, IEEE80211_ADDR_LEN); + + error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m, + BUS_DMA_NOWAIT); + if (error != 0) { + printf("%s: could not map mbuf (error %d)\n", + sc->sc_dev.dv_xname, error); + m_freem(m); + m_freem(m0); + return error; + } + + data->m = m; + data->ni = ni; + + bus_dmamap_sync(sc->sc_dmat, data->map, 0, + data->map->dm_mapsize, BUS_DMASYNC_PREWRITE); + + desc->flags = htole32(RAL_TX_VALID | RAL_TX_BUSY); + + desc->physaddr = htole32(data->map->dm_segs->ds_addr); + + sc->txq.queued++; + sc->txq.cur_encrypt = + (sc->txq.cur_encrypt + 1) % RAL_TX_RING_COUNT; + } + + data = &sc->txq.data[sc->txq.cur_encrypt]; + desc = &sc->txq.desc[sc->txq.cur_encrypt]; + + error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, + BUS_DMA_NOWAIT); + if (error != 0 && error != EFBIG) { + printf("%s: could not map mbuf (error %d)\n", + sc->sc_dev.dv_xname, error); + m_freem(m0); + return error; + } + if (error != 0) { + /* too many fragments, linearize */ + + MGETHDR(mnew, M_DONTWAIT, MT_DATA); + if (mnew == NULL) { + m_freem(m0); + return ENOMEM; + } + + M_DUP_PKTHDR(mnew, m0); + MCLGET(mnew, M_DONTWAIT); + if (!(mnew->m_flags & M_EXT)) { + m_freem(m0); + m_freem(mnew); + return ENOMEM; + } + + m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, caddr_t)); + m_freem(m0); + mnew->m_len = mnew->m_pkthdr.len; + m0 = mnew; + + error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, + BUS_DMA_NOWAIT); + if (error != 0) { + printf("%s: could not map mbuf (error %d)\n", + sc->sc_dev.dv_xname, error); + m_freem(m0); + return error; + } + } + + data->m = m0; + data->ni = ni; + + /* remember link conditions for rate adaptation algorithm */ + data->id.id_len = m0->m_pkthdr.len; + data->id.id_rateidx = ni->ni_txrate; + data->id.id_node = ni; + data->id.id_rssi = ni->ni_rssi; + + desc->physaddr = htole32(data->map->dm_segs->ds_addr); + + desc->flags = htole32(RAL_TX_CIPHER_BUSY); + desc->flags |= htole32(m0->m_pkthdr.len) << 16; + + if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { + desc->flags |= htole32(RAL_TX_NEED_ACK); + + *(uint16_t *)wh->i_dur = htole16(d0.d_data_dur); + } + + desc->wme = htole32( + 8 << RAL_WME_CWMAX_BITS_SHIFT | + 3 << RAL_WME_CWMIN_BITS_SHIFT | + 2 << RAL_WME_AIFSN_BITS_SHIFT); + + desc->plcp_length = htole16(d0.d_plcp_len); + desc->plcp_service = 4; + if (d0.d_residue != 0) + desc->plcp_service |= RAL_PLCP_LENGEXT; + desc->plcp_signal = + ral_plcp_signal(ni->ni_rates.rs_rates[ni->ni_txrate]); + if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) + desc->plcp_signal |= 0x8; + + bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, + BUS_DMASYNC_PREWRITE); + bus_dmamap_sync(sc->sc_dmat, sc->txq.map, + sc->txq.cur_encrypt * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE, + BUS_DMASYNC_PREWRITE); + + DPRINTFN(10, ("sending data frame len=%u idx=%u phys=%x plcp=%u " + "residue=%u\n", m0->m_pkthdr.len, sc->txq.cur_encrypt, + d0.d_data_dur, d0.d_plcp_len, d0.d_residue)); + + /* kick encrypt */ + sc->txq.queued++; + sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RAL_TX_RING_COUNT; + RAL_WRITE(sc, RAL_SECCSR1, RAL_SECCSR1_KICK); + + return 0; +} + +void +ral_start(struct ifnet *ifp) +{ + struct ral_softc *sc = ifp->if_softc; + struct ieee80211com *ic = &sc->sc_ic; + struct mbuf *m0; + struct ieee80211_node *ni; + + for (;;) { + IF_POLL(&ic->ic_mgtq, m0); + if (m0 != NULL) { + if (sc->prioq.queued >= RAL_PRIO_RING_COUNT) { + ifp->if_flags |= IFF_OACTIVE; + break; + } + IF_DEQUEUE(&ic->ic_mgtq, m0); + + ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif; + m0->m_pkthdr.rcvif = NULL; +#if NBPFILTER > 0 + if (ic->ic_rawbpf != NULL) + bpf_mtap(ic->ic_rawbpf, m0); +#endif + if (ral_tx_mgt(sc, m0, ni) != 0) + break; + + } else { + if (ic->ic_state != IEEE80211_S_RUN) + break; + IFQ_DEQUEUE(&ifp->if_snd, m0); + if (m0 == NULL) + break; + if (sc->txq.queued >= RAL_TX_RING_COUNT) { + IF_PREPEND(&ifp->if_snd, m0); + ifp->if_flags |= IFF_OACTIVE; + break; + } +#if NBPFILTER > 0 + if (ifp->if_bpf != NULL) + bpf_mtap(ifp->if_bpf, m0); +#endif + m0 = ieee80211_encap(ifp, m0, &ni); + if (m0 == NULL) + continue; +#if NBPFILTER > 0 + if (ic->ic_rawbpf != NULL) + bpf_mtap(ic->ic_rawbpf, m0); +#endif + if (ral_tx_data(sc, m0, ni) != 0) { + if (ni != NULL && ni != ic->ic_bss) + ieee80211_free_node(ic, ni); + break; + } + } + + sc->sc_tx_timer = 5; + ifp->if_timer = 1; + } +} + +void +ral_watchdog(struct ifnet *ifp) +{ + struct ral_softc *sc = ifp->if_softc; + + ifp->if_timer = 0; + + if (sc->sc_tx_timer > 0) { + if (--sc->sc_tx_timer == 0) { + printf("%s: device timeout\n", sc->sc_dev.dv_xname); + return; + } + ifp->if_timer = 1; + } + + ieee80211_watchdog(ifp); +} + +int +ral_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) +{ + int s, error = 0; + + s = splnet(); + + switch (cmd) { + case SIOCSIFFLAGS: + if (ifp->if_flags & IFF_UP) { + if (!(ifp->if_flags & IFF_RUNNING)) + ral_init(ifp); + } else { + if (ifp->if_flags & IFF_RUNNING) + ral_stop(ifp, 1); + } + break; + + default: + error = ieee80211_ioctl(ifp, cmd, data); + } + + if (error == ENETRESET && cmd != SIOCADDMULTI) { + if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == + (IFF_UP | IFF_RUNNING)) + ral_init(ifp); + error = 0; + } + + splx(s); + + return error; +} + +void +ral_bbp_write(struct ral_softc *sc, uint8_t reg, uint8_t val) +{ + uint32_t tmp; + int ntries; + + for (ntries = 0; ntries < 100; ntries++) { + if (!(RAL_READ(sc, RAL_BBPCSR) & RAL_BBP_BUSY)) + break; + DELAY(1); + } + if (ntries == 100) { + printf("%s: could not write to BBP\n", sc->sc_dev.dv_xname); + return; + } + + tmp = RAL_BBP_WRITE | RAL_BBP_BUSY | reg << 8 | val; + RAL_WRITE(sc, RAL_BBPCSR, tmp); + + DPRINTFN(15, ("BBP R%u <- 0x%02x\n", reg, val)); +} + +uint8_t +ral_bbp_read(struct ral_softc *sc, uint8_t reg) +{ + uint32_t val; + int ntries; + + val = RAL_BBP_BUSY | reg << 8; + RAL_WRITE(sc, RAL_BBPCSR, val); + + for (ntries = 0; ntries < 100; ntries++) { + val = RAL_READ(sc, RAL_BBPCSR); + if (!(val & RAL_BBP_BUSY)) + return val & 0xff; + DELAY(1); + } + + printf("%s: could not read from BBP\n", sc->sc_dev.dv_xname); + return 0; +} + +void +ral_rf_write(struct ral_softc *sc, uint8_t reg, uint32_t val) +{ + uint32_t tmp; + int ntries; + + for (ntries = 0; ntries < 100; ntries++) { + if (!(RAL_READ(sc, RAL_RFCSR) & RAL_RF_BUSY)) + break; + DELAY(1); + } + if (ntries == 100) { + printf("%s: could not write to RF\n", sc->sc_dev.dv_xname); + return; + } + + tmp = RAL_RF_BUSY | RAL_RF_20BIT | (val & 0xfffff) << 2 | (reg & 0x3); + RAL_WRITE(sc, RAL_RFCSR, tmp); + + /* remember last written value in sc */ + sc->rf_regs[reg] = val; + + DPRINTFN(15, ("RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff)); +} + +void +ral_set_chan(struct ral_softc *sc, struct ieee80211_channel *c) +{ +#define N(a) (sizeof (a) / sizeof ((a)[0])) + struct ieee80211com *ic = &sc->sc_ic; + uint8_t power, tmp; + u_int i, chan; + + chan = ieee80211_chan2ieee(ic, c); + if (chan == 0 || chan == IEEE80211_CHAN_ANY) + return; + + if (IEEE80211_IS_CHAN_2GHZ(c)) + power = min(sc->txpow[chan - 1], 31); + else + power = 31; + + switch (sc->rf_rev) { + case RAL_RF_2522: + ral_rf_write(sc, RAL_RF1, 0x00814); + ral_rf_write(sc, RAL_RF2, ral_rf2522_r2[chan - 1]); + ral_rf_write(sc, RAL_RF3, power << 7 | 0x00040); + break; + + case RAL_RF_2523: + ral_rf_write(sc, RAL_RF1, 0x08804); + ral_rf_write(sc, RAL_RF2, ral_rf2523_r2[chan - 1]); + ral_rf_write(sc, RAL_RF3, power << 7 | 0x38044); + ral_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286); + break; + + case RAL_RF_2524: + ral_rf_write(sc, RAL_RF1, 0x0c808); + ral_rf_write(sc, RAL_RF2, ral_rf2524_r2[chan - 1]); + ral_rf_write(sc, RAL_RF3, power << 7 | 0x00040); + ral_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286); + break; + + case RAL_RF_2525: + ral_rf_write(sc, RAL_RF1, 0x08808); + ral_rf_write(sc, RAL_RF2, ral_rf2525_hi_r2[chan - 1]); + ral_rf_write(sc, RAL_RF3, power << 7 | 0x18044); + ral_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286); + + ral_rf_write(sc, RAL_RF1, 0x08808); + ral_rf_write(sc, RAL_RF2, ral_rf2525_r2[chan - 1]); + ral_rf_write(sc, RAL_RF3, power << 7 | 0x18044); + ral_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286); + break; + + case RAL_RF_2525E: + ral_rf_write(sc, RAL_RF1, 0x08808); + ral_rf_write(sc, RAL_RF2, ral_rf2525e_r2[chan - 1]); + ral_rf_write(sc, RAL_RF3, power << 7 | 0x18044); + ral_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282); + break; + + /* dual-band RF */ + case RAL_RF_5222: + for (i = 0; i < N(ral_rf5222); i++) + if (ral_rf5222[i].chan == chan) + break; + + if (i < N(ral_rf5222)) { + ral_rf_write(sc, RAL_RF1, ral_rf5222[i].r1); + ral_rf_write(sc, RAL_RF2, ral_rf5222[i].r2); + ral_rf_write(sc, RAL_RF3, power << 7 | 0x00040); + ral_rf_write(sc, RAL_RF4, ral_rf5222[i].r4); + } + break; + } + + if (sc->sc_ic.ic_state != IEEE80211_S_SCAN) { + /* set Japan filter bit for channel 14 */ + tmp = ral_bbp_read(sc, 70); + + tmp &= ~RAL_JAPAN_FILTER; + if (chan == 14) + tmp |= RAL_JAPAN_FILTER; + + ral_bbp_write(sc, 70, tmp); + + DELAY(1000); /* RF needs a 1ms delay here */ + ral_disable_rf_tune(sc); + + /* clear CRC errors */ + RAL_READ(sc, RAL_CNT0); + } +#undef N +} + +/* + * Disable RF auto-tuning. + */ +void +ral_disable_rf_tune(struct ral_softc *sc) +{ + uint32_t tmp; + + if (sc->rf_rev != RAL_RF_2523) { + tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE; + ral_rf_write(sc, RAL_RF1, tmp); + } + + tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE; + ral_rf_write(sc, RAL_RF3, tmp); +} + +/* cf IEEE80211-1999 pp123 */ +void +ral_enable_tsf_sync(struct ral_softc *sc) +{ + struct ieee80211com *ic = &sc->sc_ic; + uint32_t tmp; + + /* first, disable TSF synchronization */ + RAL_WRITE(sc, RAL_CSR14, 0); + + /* set beacon interval and CfpMaxDuration in 1/16TU */ + tmp = 16 * ic->ic_bss->ni_intval; + RAL_WRITE(sc, RAL_CSR12, tmp); + +/* voir ni->ni_timoff ou on doit trouver le cfp et le atim */ + + /* set CFP Period to 0 */ + RAL_WRITE(sc, RAL_CSR13, 0); + + /* set bcncsr1 (CWMin + preload) */ + tmp = 5 << 16 | (IEEE80211_DUR_DS_LONG_PREAMBLE + 240); + RAL_WRITE(sc, RAL_BCNCSR1, tmp); + + if (ic->ic_opmode == IEEE80211_M_IBSS) + RAL_WRITE(sc, RAL_CSR14, RAL_CSR14_TSF_SYNC_IBSS | + RAL_CSR14_TSF_AUTOCOUNT | RAL_CSR14_BCN_RELOAD | + RAL_CSR14_GENERATE_BEACON); + else + RAL_WRITE(sc, RAL_CSR14, RAL_CSR14_TSF_SYNC_BSS | + RAL_CSR14_TSF_AUTOCOUNT | RAL_CSR14_BCN_RELOAD); +} + +void +ral_update_plcp(struct ral_softc *sc) +{ + /* no short preamble for 1Mbps */ + RAL_WRITE(sc, RAL_ARCSR2, 0x00700400); + + if (!(sc->sc_ic.ic_flags & IEEE80211_F_SHPREAMBLE)) { + /* values taken from the reference driver */ + RAL_WRITE(sc, RAL_ARCSR3, 0x00380401); + RAL_WRITE(sc, RAL_ARCSR4, 0x00150402); + RAL_WRITE(sc, RAL_ARCSR5, 0x000b8403); + } else { + /* same values as above or'ed 0x8 */ + RAL_WRITE(sc, RAL_ARCSR3, 0x00380409); + RAL_WRITE(sc, RAL_ARCSR4, 0x0015040a); + RAL_WRITE(sc, RAL_ARCSR5, 0x000b840b); + } +} + +void +ral_update_led(struct ral_softc *sc, int led1, int led2) +{ + uint32_t tmp; + + /* set ON period to 70ms and OFF period to 30ms */ + tmp = led1 << 16 | led2 << 17 | 70 << 8 | 30; + RAL_WRITE(sc, RAL_LEDCSR, tmp); +} + +void +ral_set_bssid(struct ral_softc *sc, uint8_t *bssid) +{ + uint32_t tmp; + + tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; + RAL_WRITE(sc, RAL_CSR5, tmp); + + tmp = bssid[4] | bssid[5] << 8; + RAL_WRITE(sc, RAL_CSR6, tmp); + + DPRINTFN(10, ("setting BSSID to %s\n", ether_sprintf(bssid))); +} + +void +ral_set_macaddr(struct ral_softc *sc, uint8_t *addr) +{ + uint32_t tmp; + + tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; + RAL_WRITE(sc, RAL_CSR3, tmp); + + tmp = addr[4] | addr[5] << 8; + RAL_WRITE(sc, RAL_CSR4, tmp); + + DPRINTFN(10, ("setting MAC address to %s\n", ether_sprintf(addr))); +} + +int +ral_read_eeprom(struct ral_softc *sc) +{ + uint16_t val; + const char *rf; + int i; + + val = ral_eeprom_read(sc, RAL_EEPROM_VERSION); + sc->eeprom_rev = val >> 8; + + if (sc->eeprom_rev != 1) { + printf("%s: unknown EEPROM rev. 0x%x\n", sc->sc_dev.dv_xname, + sc->eeprom_rev); + return EIO; + } + + val = ral_eeprom_read(sc, RAL_EEPROM_ANTENNA); + sc->rf_rev = (val >> 11) & 0x1f; + sc->led_mode = (val >> 6) & 0x7; + sc->hw_radio = (val >> 10) & 0x1; + sc->rx_ant = (val >> 4) & 0x3; + sc->tx_ant = (val >> 2) & 0x3; + sc->nb_ant = val & 0x3; +/* DPRINTFN(10, ("RF rev. 0x%02x, Tx Ant %u, Rx Ant %u, Nb Ant %u, " + "Led Mode %u, HW radio %s\n", + sc->rf_rev, sc->tx_ant, sc->rx_ant, sc->nb_ant, sc->led_mode, + sc->hw_radio ? "yes" : "no"));*/ + + switch (sc->rf_rev) { + case RAL_RF_2522: rf = "RT2522"; break; + case RAL_RF_2523: rf = "RT2523"; break; + case RAL_RF_2524: rf = "RT2524"; break; + case RAL_RF_2525: rf = "RT2525"; break; + case RAL_RF_2525E: rf = "RT2525e"; break; + case RAL_RF_5222: rf = "RT5222"; break; + default: rf = "unknown"; + } + + printf("%s: MAC/BBP RT2560 (rev 0x%02x), RF %s\n", sc->sc_dev.dv_xname, + sc->asic_rev, rf); + + val = ral_eeprom_read(sc, RAL_EEPROM_CONFIG); + if (val == 0xffff) + val = 0; + + sc->bbp_tune = !((val >> 1) & 0x1); + + /* read default values for BBP registers */ + for (i = 0; i < 16; i++) { + val = ral_eeprom_read(sc, RAL_EEPROM_BBP_BASE + i); + sc->bbp_prom[i].reg = val >> 8; + sc->bbp_prom[i].val = val & 0xff; + } + + /* read Tx power for all b/g channels */ + for (i = 0; i < 14 / 2; i++) { + val = ral_eeprom_read(sc, RAL_EEPROM_TXPOWER_BASE + i); + sc->txpow[i * 2] = val >> 8; + sc->txpow[i * 2 + 1] = val & 0xff; + } + + return 0; +} + +int +ral_bbp_init(struct ral_softc *sc) +{ +#define N(a) (sizeof (a) / sizeof ((a)[0])) + int i, ntries; + + /* wait for BBP to be ready */ + for (ntries = 0; ntries < 100; ntries++) { + if (ral_bbp_read(sc, RAL_BBP_VERSION) != 0) + break; + DELAY(1); + } + if (ntries == 100) { + printf("%s: timeout waiting for BBP\n", sc->sc_dev.dv_xname); + return EIO; + } + + /* initialize BBP registers to default values */ + for (i = 0; i < N(ral_def_bbp); i++) + ral_bbp_write(sc, ral_def_bbp[i].reg, ral_def_bbp[i].val); + + /* initialize BBP registers to values stored in EEPROM */ + for (i = 0; i < 16; i++) { + if (sc->bbp_prom[i].reg == 0xff) + continue; + ral_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); + } + + return 0; +#undef N +} + +int +ral_init(struct ifnet *ifp) +{ +#define N(a) (sizeof (a) / sizeof ((a)[0])) + struct ral_softc *sc = ifp->if_softc; + struct ieee80211com *ic = &sc->sc_ic; + uint32_t tmp; + int i; + + /* for CardBus, power on the socket */ + if (sc->sc_enable != NULL) + (*sc->sc_enable)(sc); + + ral_stop(ifp, 0); + + /* setup tx rings */ + tmp = RAL_PRIO_RING_COUNT << 24 | + RAL_ATIM_RING_COUNT << 16 | + RAL_TX_RING_COUNT << 8 | + RAL_TX_DESC_SIZE; + RAL_WRITE(sc, RAL_TXCSR2, tmp); + RAL_WRITE(sc, RAL_TXCSR3, sc->txq.physaddr); + RAL_WRITE(sc, RAL_TXCSR4, sc->atimq.physaddr); + RAL_WRITE(sc, RAL_TXCSR5, sc->prioq.physaddr); + RAL_WRITE(sc, RAL_TXCSR6, sc->bcnq.physaddr); + + /* setup rx ring */ + tmp = RAL_RX_RING_COUNT << 8 | RAL_RX_DESC_SIZE; + RAL_WRITE(sc, RAL_RXCSR1, tmp); + RAL_WRITE(sc, RAL_RXCSR2, sc->rxq.physaddr); + + /* initialize MAC registers to default values */ + for (i = 0; i < N(ral_def_mac); i++) + RAL_WRITE(sc, ral_def_mac[i].reg, ral_def_mac[i].val); + + /* set basic rates mask */ + RAL_WRITE(sc, RAL_ARCSR1, 0x15f); + + IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(ifp->if_sadl)); + ral_set_macaddr(sc, ic->ic_myaddr); + + ral_update_plcp(sc); + ral_update_led(sc, 0, 0); + + /* set soft reset and host ready */ + RAL_WRITE(sc, RAL_CSR1, RAL_CSR1_SOFT_RESET); + RAL_WRITE(sc, RAL_CSR1, RAL_CSR1_HOST_READY); + + if (ral_bbp_init(sc) != 0) { + ral_stop(ifp, 1); + return 1; + } + + /* set default BSS channel */ + ic->ic_bss->ni_chan = &ic->ic_channels[1]; + ral_set_chan(sc, ic->ic_bss->ni_chan); + + /* kick Rx */ + if (ic->ic_opmode != IEEE80211_M_MONITOR) + RAL_WRITE(sc, RAL_RXCSR0, + RAL_RXCSR0_DROP_CRC | RAL_RXCSR0_DROP_PHY | + RAL_RXCSR0_DROP_CTL | RAL_RXCSR0_DROP_NOT_TO_ME | + RAL_RXCSR0_DROP_TODS | RAL_RXCSR0_DROP_BAD_VERSION); + else + RAL_WRITE(sc, RAL_RXCSR0, 0); + + /* clear old FCS and Rx FIFO errors */ + RAL_READ(sc, RAL_CNT0); + RAL_READ(sc, RAL_CNT4); + + /* clear any pending interrupts */ + RAL_WRITE(sc, RAL_CSR7, 0xffffffff); + + /* enable interrupts */ + RAL_WRITE(sc, RAL_CSR8, RAL_CSR8_MASK); + + ifp->if_flags &= ~IFF_OACTIVE; + ifp->if_flags |= IFF_RUNNING; + + if (ic->ic_opmode != IEEE80211_M_MONITOR) + ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); + + return 0; +#undef N +} + +void +ral_stop(struct ifnet *ifp, int disable) +{ + struct ral_softc *sc = ifp->if_softc; + struct ieee80211com *ic = &sc->sc_ic; + + ieee80211_new_state(ic, IEEE80211_S_INIT, -1); + + /* abort Tx */ + RAL_WRITE(sc, RAL_TXCSR0, RAL_TXCSR0_ABORT); + + /* disable Rx */ + RAL_WRITE(sc, RAL_RXCSR0, RAL_RXCSR0_DISABLE); + + /* reset ASIC (and thus, BBP) */ + RAL_WRITE(sc, RAL_CSR1, RAL_CSR1_SOFT_RESET); + RAL_WRITE(sc, RAL_CSR1, 0); + + /* disable interrupts */ + RAL_WRITE(sc, RAL_CSR8, 0xffffffff); + + /* reset Tx and Rx rings */ + ral_reset_tx_ring(sc, &sc->txq); + ral_reset_tx_ring(sc, &sc->prioq); + ral_reset_tx_ring(sc, &sc->atimq); + ral_reset_tx_ring(sc, &sc->bcnq); + ral_reset_rx_ring(sc, &sc->rxq); + + /* for CardBus, power down the socket */ + if (disable && sc->sc_disable != NULL) + (*sc->sc_disable)(sc); + + sc->sc_tx_timer = 0; + ifp->if_timer = 0; + ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); +} + +struct cfdriver ral_cd = { + 0, "ral", DV_IFNET +}; diff --git a/sys/dev/ic/ralreg.h b/sys/dev/ic/ralreg.h new file mode 100644 index 00000000000..739d4a28a46 --- /dev/null +++ b/sys/dev/ic/ralreg.h @@ -0,0 +1,308 @@ +/* $OpenBSD: ralreg.h,v 1.1 2005/02/15 20:51:21 damien Exp $ */ + +/*- + * Copyright (c) 2005 + * Damien Bergamini <damien.bergamini@free.fr> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#define RAL_TX_RING_COUNT 48 +#define RAL_ATIM_RING_COUNT 4 +#define RAL_PRIO_RING_COUNT 16 +#define RAL_BEACON_RING_COUNT 1 +#define RAL_RX_RING_COUNT 32 + +#define RAL_TX_DESC_SIZE (sizeof (struct ral_tx_desc)) +#define RAL_RX_DESC_SIZE (sizeof (struct ral_rx_desc)) + +#define RAL_MAX_SCATTER 1 + +#define RAL_CSR0 0x0000 +#define RAL_CSR1 0x0004 +#define RAL_CSR2 0x0008 +#define RAL_CSR3 0x000c +#define RAL_CSR4 0x0010 +#define RAL_CSR5 0x0014 +#define RAL_CSR6 0x0018 +#define RAL_CSR7 0x001c +#define RAL_CSR8 0x0020 +#define RAL_CSR9 0x0024 +#define RAL_CSR11 0x002c +#define RAL_CSR12 0x0030 +#define RAL_CSR13 0x0034 +#define RAL_CSR14 0x0038 +#define RAL_CSR15 0x003c +#define RAL_CSR16 0x0040 +#define RAL_CSR17 0x0044 +#define RAL_CSR18 0x0048 +#define RAL_CSR19 0x004c +#define RAL_CSR20 0x0050 +#define RAL_CSR21 0x0054 +#define RAL_CSR22 0x0058 + +#define RAL_SECCSR0 0x0028 +#define RAL_SECCSR1 0x0158 +#define RAL_SECCSR3 0x00fc + +#define RAL_TXCSR0 0x0060 +#define RAL_TXCSR1 0x0064 +#define RAL_TXCSR2 0x0068 +#define RAL_TXCSR3 0x006c +#define RAL_TXCSR4 0x0070 +#define RAL_TXCSR5 0x0074 +#define RAL_TXCSR6 0x0078 +#define RAL_TXCSR7 0x007c +#define RAL_TXCSR8 0x0098 +#define RAL_TXCSR9 0x0094 + +#define RAL_RXCSR0 0x0080 +#define RAL_RXCSR1 0x0084 +#define RAL_RXCSR2 0x0088 +#define RAL_RXCSR3 0x0090 +#define RAL_ARCSR1 0x009c + +#define RAL_PCICSR 0x008c + +#define RAL_CNT0 0x00a0 +#define RAL_CNT1 0x00ac +#define RAL_CNT2 0x00b0 +#define RAL_CNT3 0x00b8 +#define RAL_CNT4 0x00bc +#define RAL_CNT5 0x00c0 + +#define RAL_PWRCSR0 0x00c4 +#define RAL_PSCSR0 0x00c8 +#define RAL_PSCSR1 0x00cc +#define RAL_PSCSR2 0x00d0 +#define RAL_PSCSR3 0x00d4 +#define RAL_PWRCSR1 0x00d8 +#define RAL_TIMECSR 0x00dc +#define RAL_MACCSR0 0x00e0 +#define RAL_MACCSR1 0x00e4 +#define RAL_RALINKCSR 0x00e8 +#define RAL_BCNCSR 0x00ec + +#define RAL_BBPCSR 0x00f0 +#define RAL_RFCSR 0x00f4 +#define RAL_LEDCSR 0x00f8 + +#define RAL_TXACKCSR0 0x0110 +#define RAL_ACKCNT0 0x0114 +#define RAL_ACKCNT1 0x0118 + +#define RAL_GPIOCSR 0x0120 +#define RAL_FIFOCSR0 0x0128 +#define RAL_FIFOCSR1 0x012C +#define RAL_BCNCSR1 0x0130 +#define RAL_MACCSR2 0x0134 +#define RAL_TESTCSR 0x0138 + +#define RAL_ARCSR2 0x013c +#define RAL_ARCSR3 0x0140 +#define RAL_ARCSR4 0x0144 +#define RAL_ARCSR5 0x0148 + +#define RAL_ARTCSR0 0x014c +#define RAL_ARTCSR1 0x0150 +#define RAL_ARTCSR2 0x0154 +#define RAL_SECCSR1 0x0158 +#define RAL_BBPCSR1 0x015c + + +#define RAL_CSR1_SOFT_RESET (1 << 0) +#define RAL_CSR1_HOST_READY (1 << 2) + +#define RAL_CSR21_93C46 (1 << 5) + +#define RAL_TXCSR0_KICK_TX (1 << 0) +#define RAL_TXCSR0_KICK_ATIM (1 << 1) +#define RAL_TXCSR0_KICK_PRIO (1 << 2) +#define RAL_TXCSR0_ABORT (1 << 3) + +#define RAL_RXCSR0_DISABLE (1 << 0) +#define RAL_RXCSR0_DROP_CRC (1 << 1) +#define RAL_RXCSR0_DROP_PHY (1 << 2) +#define RAL_RXCSR0_DROP_CTL (1 << 3) +#define RAL_RXCSR0_DROP_NOT_TO_ME (1 << 4) +#define RAL_RXCSR0_DROP_TODS (1 << 5) +#define RAL_RXCSR0_DROP_BAD_VERSION (1 << 6) + +#define RAL_SECCSR0_KICK (1 << 0) + +#define RAL_SECCSR1_KICK (1 << 0) + +/* possible flags for register CSR7 */ +#define RAL_CSR7_BEACON_EXPIRE 0x00000001 +#define RAL_CSR7_WAKEUP_EXPIRE 0x00000002 +#define RAL_CSR7_ATIM_EXPIRE 0x00000004 +#define RAL_CSR7_TX_DONE 0x00000008 +#define RAL_CSR7_ATIM_DONE 0x00000010 +#define RAL_CSR7_PRIO_DONE 0x00000020 +#define RAL_CSR7_RX_DONE 0x00000040 +#define RAL_CSR7_DECRYPTION_DONE 0x00000080 +#define RAL_CSR7_ENCRYPTION_DONE 0x00000100 + +#define RAL_CSR8_MASK \ + (~(RAL_CSR7_BEACON_EXPIRE | RAL_CSR7_WAKEUP_EXPIRE | \ + RAL_CSR7_TX_DONE | RAL_CSR7_PRIO_DONE | RAL_CSR7_RX_DONE | \ + RAL_CSR7_DECRYPTION_DONE | RAL_CSR7_ENCRYPTION_DONE)) + +#define RAL_CSR14_TSF_AUTOCOUNT (1 << 0) +#define RAL_CSR14_TSF_SYNC_BSS (1 << 1) +#define RAL_CSR14_TSF_SYNC_IBSS (2 << 1) +#define RAL_CSR14_BCN_RELOAD (1 << 3) +#define RAL_CSR14_GENERATE_BEACON (1 << 6) +#define RAL_CSR14_PRELOAD_SHIFT 16 + +/* Tx descriptor */ +struct ral_tx_desc { + uint32_t flags; +#define RAL_TX_BUSY (1 << 0) +#define RAL_TX_VALID (1 << 1) + +#define RAL_TX_RESULT_MASK 0x0000001c +#define RAL_TX_SUCCESS (0 << 2) +#define RAL_TX_SUCCESS_RETRY (1 << 2) +#define RAL_TX_FAIL_RETRY (2 << 2) +#define RAL_TX_FAIL_INVALID (3 << 2) +#define RAL_TX_FAIL_OTHER (4 << 2) + +#define RAL_TX_NOT_LAST (1 << 8) +#define RAL_TX_NEED_ACK (1 << 9) +#define RAL_TX_INSERT_TIMESTAMP (1 << 10) +#define RAL_TX_OFDM (1 << 11) +#define RAL_TX_CIPHER_BUSY (1 << 12) + +#define RAL_TX_IFS_MASK 0x00006000 +#define RAL_TX_IFS_BACKOFF (0 << 13) +#define RAL_TX_IFS_SIFS (1 << 13) +#define RAL_TX_IFS_NEW_BACKOFF (2 << 13) +#define RAL_TX_IFS_NONE (3 << 13) + +#define RAL_TX_CIPHER_MASK 0xe0000000 +#define RAL_TX_CIPHER_NONE (0 << 29) +#define RAL_TX_CIPHER_WEP40 (1 << 29) +#define RAL_TX_CIPHER_WEP104 (2 << 29) +#define RAL_TX_CIPHER_TKIP (3 << 29) +#define RAL_TX_CIPHER_AES (4 << 29) + + uint32_t physaddr; + uint32_t wme; +#define RAL_WME_CWMAX_BITS_SHIFT 12 +#define RAL_WME_CWMIN_BITS_SHIFT 8 +#define RAL_WME_AIFSN_BITS_SHIFT 6 + + uint8_t plcp_signal; + uint8_t plcp_service; +#define RAL_PLCP_LENGEXT 0x80 + + uint16_t plcp_length; + uint32_t iv; + uint32_t eiv; + uint8_t key[IEEE80211_KEYBUF_SIZE]; + uint32_t reserved[2]; +} __packed; + +/* Rx descriptor */ +struct ral_rx_desc { + uint32_t flags; +#define RAL_RX_BUSY (1 << 0) +#define RAL_RX_CRC_ERROR (1 << 5) +#define RAL_RX_PHY_ERROR (1 << 7) +#define RAL_RX_CIPHER_BUSY (1 << 8) +#define RAL_RX_ICV_ERROR (1 << 9) + +#define RAL_RX_CIPHER_MASK 0xe0000000 +#define RAL_RX_CIPHER_NONE (0 << 29) +#define RAL_RX_CIPHER_WEP40 (1 << 29) +#define RAL_RX_CIPHER_WEP104 (2 << 29) +#define RAL_RX_CIPHER_TKIP (3 << 29) +#define RAL_RX_CIPHER_AES (4 << 29) + + uint32_t physaddr; + uint8_t rate; + uint8_t rssi; + uint8_t ta[IEEE80211_ADDR_LEN]; + uint32_t iv; + uint32_t eiv; + uint8_t key[IEEE80211_KEYBUF_SIZE]; + uint32_t reserved[2]; +} __packed; + + +#define RAL_RF1 0 +#define RAL_RF2 2 +#define RAL_RF3 1 +#define RAL_RF4 3 + +#define RAL_RF1_AUTOTUNE 0x08000 +#define RAL_RF3_AUTOTUNE 0x00040 + +#define RAL_BBP_BUSY (1 << 15) +#define RAL_BBP_WRITE (1 << 16) +#define RAL_RF_BUSY (1 << 31) +#define RAL_RF_20BIT (20 << 24) + +#define RAL_RF_2522 0x00 +#define RAL_RF_2523 0x01 +#define RAL_RF_2524 0x02 +#define RAL_RF_2525 0x03 +#define RAL_RF_2525E 0x04 +/* dual-band RF */ +#define RAL_RF_5222 0x10 + +#define RAL_BBP_VERSION 0 + +#define RAL_LED_MODE_DEFAULT 0 +#define RAL_LED_MODE_TXRX_ACTIVITY 1 +#define RAL_LED_MODE_SINGLE 2 +#define RAL_LED_MODE_ASUS 3 + +#define RAL_JAPAN_FILTER 0x8 + +#define RAL_EEPROM_ANTENNA 16 +#define RAL_EEPROM_CONFIG 17 +#define RAL_EEPROM_COUNTRY 18 +#define RAL_EEPROM_BBP_BASE 19 +#define RAL_EEPROM_TXPOWER_BASE 35 +#define RAL_EEPROM_TSSI_BASE 42 +#define RAL_EEPROM_RSSITODBM 62 +#define RAL_EEPROM_VERSION 63 + +#define RAL_EEPROM_DELAY 1 /* minimum hold time (microsecond) */ + +#define RAL_EEPROM_C (1 << 1) /* Serial Clock */ +#define RAL_EEPROM_S (1 << 2) /* Chip Select */ +#define RAL_EEPROM_D (1 << 3) /* Serial data input */ +#define RAL_EEPROM_Q (1 << 4) /* Serial data output */ + +#define RAL_EEPROM_SHIFT_D 3 +#define RAL_EEPROM_SHIFT_Q 4 + +/* + * control and status registers access macros + */ +#define RAL_READ(sc, reg) \ + bus_space_read_4((sc)->sc_st, (sc)->sc_sh, (reg)) + +#define RAL_WRITE(sc, reg, val) \ + bus_space_write_4((sc)->sc_st, (sc)->sc_sh, (reg), (val)) + +/* + * EEPROM access macro + */ +#define RAL_EEPROM_CTL(sc, val) do { \ + RAL_WRITE((sc), RAL_CSR21, (val)); \ + DELAY(RAL_EEPROM_DELAY); \ +} while (/* CONSTCOND */0) diff --git a/sys/dev/ic/ralvar.h b/sys/dev/ic/ralvar.h new file mode 100644 index 00000000000..9499e4c0d59 --- /dev/null +++ b/sys/dev/ic/ralvar.h @@ -0,0 +1,153 @@ +/* $OpenBSD: ralvar.h,v 1.1 2005/02/15 20:51:21 damien Exp $ */ + +/*- + * Copyright (c) 2005 + * Damien Bergamini <damien.bergamini@free.fr> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +struct ral_rx_radiotap_header { + struct ieee80211_radiotap_header wr_ihdr; + uint8_t wr_flags; + uint16_t wr_chan_freq; + uint16_t wr_chan_flags; + uint8_t wr_antsignal; +}; + +#define RAL_RX_RADIOTAP_PRESENT \ + ((1 << IEEE80211_RADIOTAP_FLAGS) | \ + (1 << IEEE80211_RADIOTAP_CHANNEL) | \ + (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL)) + +struct ral_tx_radiotap_header { + struct ieee80211_radiotap_header wt_ihdr; + uint8_t wt_flags; + uint16_t wt_chan_freq; + uint16_t wt_chan_flags; +}; + +#define RAL_TX_RADIOTAP_PRESENT \ + ((1 << IEEE80211_RADIOTAP_FLAGS) | \ + (1 << IEEE80211_RADIOTAP_CHANNEL)) + +struct ral_tx_data { + bus_dmamap_t map; + struct mbuf *m; + struct ieee80211_node *ni; + struct ieee80211_rssdesc id; +}; + +struct ral_tx_ring { + bus_dmamap_t map; + bus_dma_segment_t seg; + bus_addr_t physaddr; + struct ral_tx_desc *desc; + struct ral_tx_data *data; + int count; + int queued; + int cur; + int next; + int cur_encrypt; + int next_encrypt; +}; + +struct ral_rx_data { + bus_dmamap_t map; + struct mbuf *m; + int drop; +}; + +struct ral_rx_ring { + bus_dmamap_t map; + bus_dma_segment_t seg; + bus_addr_t physaddr; + struct ral_rx_desc *desc; + struct ral_rx_data *data; + int count; + int cur; + int next; + int cur_decrypt; +}; + +struct ral_softc { + struct device sc_dev; + + struct ieee80211com sc_ic; + int (*sc_newstate)(struct ieee80211com *, + enum ieee80211_state, int); + + int (*sc_enable)(struct ral_softc *); + void (*sc_disable)(struct ral_softc *); + void (*sc_power)(struct ral_softc *, int); + + bus_dma_tag_t sc_dmat; + bus_space_tag_t sc_st; + bus_space_handle_t sc_sh; + + struct ieee80211_rssadapt rssadapt; + + struct timeout scan_ch; + struct timeout rssadapt_ch; + + int sc_tx_timer; + + uint32_t asic_rev; + uint32_t eeprom_rev; + uint8_t rf_rev; + + struct ral_tx_ring txq; + struct ral_tx_ring prioq; + struct ral_tx_ring atimq; + struct ral_tx_ring bcnq; + struct ral_rx_ring rxq; + + uint32_t rf_regs[4]; + uint8_t txpow[14]; + + struct { + uint8_t reg; + uint8_t val; + } bbp_prom[16]; + + int led_mode; + int hw_radio; + int rx_ant; + int tx_ant; + int nb_ant; + int bbp_tune; + + +#if NBPFILTER > 0 + caddr_t sc_drvbpf; + + union { + struct ral_rx_radiotap_header th; + uint8_t pad[64]; + } sc_rxtapu; +#define sc_rxtap sc_rxtapu.th + int sc_rxtap_len; + + union { + struct ral_tx_radiotap_header th; + uint8_t pad[64]; + } sc_txtapu; +#define sc_txtap sc_txtapu.th + int sc_txtap_len; +#endif +}; + +int ral_attach(struct ral_softc *); +int ral_detach(struct ral_softc *); +int ral_intr(void *); +int ral_activate(struct device *, enum devact); diff --git a/sys/dev/pci/files.pci b/sys/dev/pci/files.pci index 38eda9a75b8..69156be13be 100644 --- a/sys/dev/pci/files.pci +++ b/sys/dev/pci/files.pci @@ -1,4 +1,4 @@ -# $OpenBSD: files.pci,v 1.170 2005/01/14 01:08:11 pvalchev Exp $ +# $OpenBSD: files.pci,v 1.171 2005/02/15 20:51:22 damien Exp $ # $NetBSD: files.pci,v 1.20 1996/09/24 17:47:15 christos Exp $ # # Config file and device description for machine-independent PCI code. @@ -522,6 +522,10 @@ file dev/pci/if_atw_pci.c atw_pci attach rtw at pci with rtw_pci file dev/pci/if_rtw_pci.c rtw_pci +# Ralink RT2500 PCI/Mini-PCI +attach ral at pci with ral_pci +file dev/pci/if_ral_pci.c ral_pci + # Sangoma PCI card device san: ifnet, ifmedia attach san at pci diff --git a/sys/dev/pci/if_ral_pci.c b/sys/dev/pci/if_ral_pci.c new file mode 100644 index 00000000000..eeed36845e5 --- /dev/null +++ b/sys/dev/pci/if_ral_pci.c @@ -0,0 +1,147 @@ +/* $OpenBSD: if_ral_pci.c,v 1.1 2005/02/15 20:51:22 damien Exp $ */ + +/*- + * Copyright (c) 2005 + * Damien Bergamini <damien.bergamini@free.fr> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * PCI front-end for the Ralink RT2500 driver. + */ + +#include <sys/param.h> +#include <sys/sockio.h> +#include <sys/mbuf.h> +#include <sys/kernel.h> +#include <sys/socket.h> +#include <sys/systm.h> +#include <sys/malloc.h> +#include <sys/timeout.h> + +#include <machine/bus.h> +#include <machine/intr.h> + +#include <net/if.h> +#include <net/if_dl.h> +#include <net/if_media.h> + +#include <netinet/in.h> +#include <netinet/if_ether.h> + +#include <net80211/ieee80211_var.h> +#include <net80211/ieee80211_rssadapt.h> +#include <net80211/ieee80211_radiotap.h> + +#include <dev/ic/ralvar.h> + +#include <dev/pci/pcireg.h> +#include <dev/pci/pcivar.h> +#include <dev/pci/pcidevs.h> + +struct ral_pci_softc { + struct ral_softc sc_sc; + + /* PCI specific goo */ + pci_chipset_tag_t sc_pc; + void *sc_ih; + bus_size_t sc_mapsize; +}; + +/* Base Address Register */ +#define RAL_PCI_BAR0 0x10 + +int ral_pci_match(struct device *, void *, void *); +void ral_pci_attach(struct device *, struct device *, void *); +int ral_pci_detach(struct device *, int); + +struct cfattach ral_pci_ca = { + sizeof (struct ral_pci_softc), ral_pci_match, ral_pci_attach, + ral_pci_detach +}; + +int +ral_pci_match(struct device *parent, void *match, void *aux) +{ + struct pci_attach_args *pa = aux; + + if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_RALINK && + PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_RALINK_RT2560) + return 1; + + return 0; +} + +void +ral_pci_attach(struct device *parent, struct device *self, void *aux) +{ + struct ral_pci_softc *psc = (struct ral_pci_softc *)self; + struct ral_softc *sc = &psc->sc_sc; + struct pci_attach_args *pa = aux; + const char *intrstr; + bus_addr_t base; + pci_intr_handle_t ih; + pcireg_t reg; + int error; + + sc->sc_dmat = pa->pa_dmat; + psc->sc_pc = pa->pa_pc; + + printf("\n"); + + /* enable the appropriate bits in the PCI CSR */ + reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); + reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE; + pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg); + + /* map control/status registers */ + error = pci_mapreg_map(pa, RAL_PCI_BAR0, PCI_MAPREG_TYPE_MEM | + PCI_MAPREG_MEM_TYPE_32BIT, 0, &sc->sc_st, &sc->sc_sh, &base, + &psc->sc_mapsize, 0); + if (error != 0) { + printf(": could not map memory space\n"); + return; + } + + if (pci_intr_map(pa, &ih) != 0) { + printf(": could not map interrupt\n"); + return; + } + + intrstr = pci_intr_string(psc->sc_pc, ih); + psc->sc_ih = pci_intr_establish(psc->sc_pc, ih, IPL_NET, ral_intr, sc, + sc->sc_dev.dv_xname); + if (psc->sc_ih == NULL) { + printf(": could not establish interrupt"); + if (intrstr != NULL) + printf(" at %s", intrstr); + printf("\n"); + return; + } + printf(": %s\n", intrstr); + + ral_attach(sc); +} + +int +ral_pci_detach(struct device *self, int flags) +{ + struct ral_pci_softc *psc = (struct ral_pci_softc *)self; + struct ral_softc *sc = &psc->sc_sc; + + ral_detach(sc); + pci_intr_disestablish(psc->sc_pc, psc->sc_ih); + + return 0; +} |