diff options
| author | nonaka <nonaka@NetBSD.org> | 2010-03-27 03:04:51 +0000 |
|---|---|---|
| committer | nonaka <nonaka@NetBSD.org> | 2010-03-27 03:04:51 +0000 |
| commit | 821373d09b2857756f6bc7eb0799674969571f4f (patch) | |
| tree | eae22eaa380a56a3f4715bbd9b08af54bd1d007f /sys/dev | |
| parent | 6f6b6bc6dfd8c2e47c3e967c4204459345b62c7a (diff) | |
Added sdhc at cardbus support.
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/cardbus/files.cardbus | 8 | ||||
| -rw-r--r-- | sys/dev/cardbus/sdhc_cardbus.c | 207 | ||||
| -rw-r--r-- | sys/dev/sdmmc/sdhc.c | 93 | ||||
| -rw-r--r-- | sys/dev/sdmmc/sdhcvar.h | 9 |
4 files changed, 299 insertions, 18 deletions
diff --git a/sys/dev/cardbus/files.cardbus b/sys/dev/cardbus/files.cardbus index 5ae240f2bbc..564e0cd4d46 100644 --- a/sys/dev/cardbus/files.cardbus +++ b/sys/dev/cardbus/files.cardbus @@ -1,4 +1,4 @@ -# $NetBSD: files.cardbus,v 1.35 2009/07/19 06:28:08 kiyohara Exp $ +# $NetBSD: files.cardbus,v 1.36 2010/03/27 03:04:51 nonaka Exp $ # # files.cardbus # @@ -137,3 +137,9 @@ file dev/cardbus/njata_cardbus.c njata_cardbus # attach siisata at cardbus with siisata_cardbus file dev/cardbus/siisata_cardbus.c siisata_cardbus + +# +# SD Host Controller +# +attach sdhc at cardbus with sdhc_cardbus +file dev/cardbus/sdhc_cardbus.c sdhc_cardbus diff --git a/sys/dev/cardbus/sdhc_cardbus.c b/sys/dev/cardbus/sdhc_cardbus.c new file mode 100644 index 00000000000..8febd719cb7 --- /dev/null +++ b/sys/dev/cardbus/sdhc_cardbus.c @@ -0,0 +1,207 @@ +/* $NetBSD: sdhc_cardbus.c,v 1.1 2010/03/27 03:04:51 nonaka Exp $ */ + +/* + * Copyright (c) 2010 NONAKA Kimihiro <nonaka@netbsd.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__KERNEL_RCSID(0, "$NetBSD: sdhc_cardbus.c,v 1.1 2010/03/27 03:04:51 nonaka Exp $"); + +#include <sys/param.h> +#include <sys/device.h> +#include <sys/systm.h> +#include <sys/malloc.h> +#include <sys/pmf.h> + +#include <dev/cardbus/cardbusvar.h> +#include <dev/pci/pcidevs.h> + +#include <dev/sdmmc/sdhcreg.h> +#include <dev/sdmmc/sdhcvar.h> +#include <dev/sdmmc/sdmmcvar.h> + +/* PCI interface classes */ +#define SDHC_PCI_INTERFACE_NO_DMA 0x00 +#define SDHC_PCI_INTERFACE_DMA 0x01 +#define SDHC_PCI_INTERFACE_VENDOR 0x02 + +/* + * 8-bit PCI configuration register that tells us how many slots there + * are and which BAR entry corresponds to the first slot. + */ +#define SDHC_PCI_CONF_SLOT_INFO 0x40 +#define SDHC_PCI_NUM_SLOTS(info) ((((info) >> 4) & 0x7) + 1) +#define SDHC_PCI_FIRST_BAR(info) ((info) & 0x7) + +struct sdhc_cardbus_softc { + struct sdhc_softc sc; + cardbus_chipset_tag_t sc_cc; + cardbus_function_tag_t sc_cf; + cardbus_devfunc_t sc_ct; + pcitag_t sc_tag; + bus_space_tag_t sc_iot; /* CardBus I/O space tag */ + bus_space_tag_t sc_memt; /* CardBus MEM space tag */ + rbus_tag_t sc_rbus_iot; /* CardBus i/o rbus tag */ + rbus_tag_t sc_rbus_memt; /* CardBus mem rbus tag */ + + void *sc_ih; +}; + +static int sdhc_cardbus_match(device_t, cfdata_t, void *); +static void sdhc_cardbus_attach(device_t, device_t, void *); +static int sdhc_cardbus_detach(device_t, int); + +CFATTACH_DECL_NEW(sdhc_cardbus, sizeof(struct sdhc_cardbus_softc), + sdhc_cardbus_match, sdhc_cardbus_attach, sdhc_cardbus_detach, NULL); + +#ifdef SDHC_DEBUG +#define DPRINTF(s) printf s +#else +#define DPRINTF(s) /**/ +#endif + +static int +sdhc_cardbus_match(device_t parent, cfdata_t cf, void *aux) +{ + struct cardbus_attach_args *ca = aux; + + if (PCI_CLASS(ca->ca_class) == PCI_CLASS_SYSTEM && + PCI_SUBCLASS(ca->ca_class) == PCI_SUBCLASS_SYSTEM_SDHC) + return 3; + + return 0; +} + +static void +sdhc_cardbus_attach(device_t parent, device_t self, void *aux) +{ + struct sdhc_cardbus_softc *sc = device_private(self); + struct cardbus_attach_args *ca = aux; + cardbus_devfunc_t ct = ca->ca_ct; + cardbus_chipset_tag_t cc = ct->ct_cc; + cardbus_function_tag_t cf = ct->ct_cf; + pcireg_t csr; + pcireg_t slotinfo; + char devinfo[256]; + int nslots; + bus_space_tag_t iot; + bus_space_handle_t ioh; + bus_size_t size; + + sc->sc.sc_dev = self; + sc->sc.sc_dmat = ca->ca_dmat; + sc->sc.sc_host = NULL; + + sc->sc_cc = cc; + sc->sc_cf = cf; + sc->sc_ct = ct; + sc->sc_tag = ca->ca_tag; + + sc->sc_iot = ca->ca_iot; + sc->sc_memt = ca->ca_memt; + sc->sc_rbus_iot = ca->ca_rbus_iot; + sc->sc_rbus_memt = ca->ca_rbus_memt; + + pci_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo)); + aprint_normal(": %s (rev. 0x%02x)\n", devinfo, + PCI_REVISION(ca->ca_class)); + aprint_naive("\n"); + + /* + * Map and attach all hosts supported by the host controller. + */ + slotinfo = Cardbus_conf_read(ct, ca->ca_tag, SDHC_PCI_CONF_SLOT_INFO); + nslots = SDHC_PCI_NUM_SLOTS(slotinfo); + KASSERT(nslots == 1); + + /* Allocate an array big enough to hold all the possible hosts */ + sc->sc.sc_host = malloc(sizeof(struct sdhc_host *) * nslots, + M_DEVBUF, M_NOWAIT | M_ZERO); + if (sc->sc.sc_host == NULL) { + aprint_error_dev(self, "couldn't alloc memory\n"); + goto err; + } + + /* Enable the device. */ + csr = Cardbus_conf_read(ct, ca->ca_tag, PCI_COMMAND_STATUS_REG); + Cardbus_conf_write(ct, ca->ca_tag, PCI_COMMAND_STATUS_REG, + csr | PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE); + + /* Establish the interrupt. */ + sc->sc_ih = Cardbus_intr_establish(ct, ca->ca_intrline, IPL_SDMMC, + sdhc_intr, &sc->sc); + if (sc->sc_ih == NULL) { + aprint_error_dev(self, "couldn't establish interrupt\n"); + goto err; + } + + /* Enable use of DMA if supported by the interface. */ + if ((PCI_INTERFACE(ca->ca_class) == SDHC_PCI_INTERFACE_DMA)) + SET(sc->sc.sc_flags, SDHC_FLAG_USE_DMA); + + if (Cardbus_mapreg_map(ct, PCI_MAPREG_START, PCI_MAPREG_TYPE_MEM, 0, + &iot, &ioh, NULL, &size)) { + aprint_error_dev(self, "couldn't map register\n"); + goto err; + } + + if (sdhc_host_found(&sc->sc, iot, ioh, size) != 0) { + aprint_error_dev(self, "couldn't initialize host\n"); + goto err; + } + + if (!pmf_device_register1(self, sdhc_suspend, sdhc_resume, + sdhc_shutdown)) { + aprint_error_dev(self, "couldn't establish powerhook\n"); + } + + return; + +err: + if (sc->sc_ih != NULL) + Cardbus_intr_disestablish(ct, sc->sc_ih); + if (sc->sc.sc_host != NULL) + free(sc->sc.sc_host, M_DEVBUF); +} + +static int +sdhc_cardbus_detach(device_t self, int flags) +{ + struct sdhc_cardbus_softc *sc = device_private(self); + struct cardbus_devfunc *ct = sc->sc_ct; + int rv; + + rv = sdhc_detach((device_t)sc->sc.sc_host[0], flags); + if (rv) + return rv; + if (sc->sc_ih != NULL) { + Cardbus_intr_disestablish(ct, sc->sc_ih); + sc->sc_ih = NULL; + } + if (sc->sc.sc_host != NULL) { + free(sc->sc.sc_host, M_DEVBUF); + sc->sc.sc_host = NULL; + } + return 0; +} diff --git a/sys/dev/sdmmc/sdhc.c b/sys/dev/sdmmc/sdhc.c index b155988c974..179ba2e3a0c 100644 --- a/sys/dev/sdmmc/sdhc.c +++ b/sys/dev/sdmmc/sdhc.c @@ -1,4 +1,4 @@ -/* $NetBSD: sdhc.c,v 1.6 2010/02/24 22:38:08 dyoung Exp $ */ +/* $NetBSD: sdhc.c,v 1.7 2010/03/27 03:04:52 nonaka Exp $ */ /* $OpenBSD: sdhc.c,v 1.25 2009/01/13 19:44:20 grange Exp $ */ /* @@ -23,7 +23,7 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: sdhc.c,v 1.6 2010/02/24 22:38:08 dyoung Exp $"); +__KERNEL_RCSID(0, "$NetBSD: sdhc.c,v 1.7 2010/03/27 03:04:52 nonaka Exp $"); #include <sys/param.h> #include <sys/device.h> @@ -121,6 +121,7 @@ static int sdhc_wait_state(struct sdhc_host *, uint32_t, uint32_t); static int sdhc_soft_reset(struct sdhc_host *, int); static int sdhc_wait_intr(struct sdhc_host *, int, int); static void sdhc_transfer_data(struct sdhc_host *, struct sdmmc_command *); +static int sdhc_transfer_data_dma(struct sdhc_host *, struct sdmmc_command *); static int sdhc_transfer_data_pio(struct sdhc_host *, struct sdmmc_command *); static void sdhc_read_data_pio(struct sdhc_host *, uint8_t *, int); static void sdhc_write_data_pio(struct sdhc_host *, uint8_t *, int); @@ -225,7 +226,7 @@ sdhc_host_found(struct sdhc_softc *sc, bus_space_tag_t iot, hp->clkbase = SDHC_BASE_FREQ_KHZ(caps); if (hp->clkbase == 0) { /* The attachment driver must tell us. */ - aprint_error_dev(sc->sc_dev,"unknown base clock frequency\n"); + aprint_error_dev(sc->sc_dev, "unknown base clock frequency\n"); goto err; } else if (hp->clkbase < 10000 || hp->clkbase > 63000) { /* SDHC 1.0 supports only 10-63 MHz. */ @@ -294,7 +295,6 @@ sdhc_host_found(struct sdhc_softc *sc, bus_space_tag_t iot, if (ISSET(hp->flags, SHF_USE_DMA)) saa.saa_caps |= SMC_CAPS_DMA; #endif - hp->sdmmc = config_found(sc->sc_dev, &saa, NULL); return 0; @@ -309,6 +309,25 @@ err1: return 1; } +int +sdhc_detach(device_t dev, int flags) +{ + struct sdhc_host *hp = (struct sdhc_host *)dev; + struct sdhc_softc *sc = hp->sc; + int rv = 0; + + if (hp->sdmmc) + rv = config_detach(hp->sdmmc, flags); + + cv_destroy(&hp->intr_cv); + mutex_destroy(&hp->intr_mtx); + mutex_destroy(&hp->host_mtx); + free(hp, M_DEVBUF); + sc->sc_host[--sc->sc_nhosts] = NULL; + + return rv; +} + bool sdhc_suspend(device_t dev, const pmf_qual_t *qual) { @@ -759,10 +778,9 @@ sdhc_start_command(struct sdhc_host *hp, struct sdmmc_command *cmd) uint16_t command; int error; - DPRINTF(1,("%s: start cmd %d arg=%08x data=%p dlen=%d flags=%08x " - "proc=%p \"%s\"\n", HDEVNAME(hp), cmd->c_opcode, cmd->c_arg, - cmd->c_data, cmd->c_datalen, cmd->c_flags, curproc, - curproc ? curproc->p_comm : "")); + DPRINTF(1,("%s: start cmd %d arg=%08x data=%p dlen=%d flags=%08x\n", + HDEVNAME(hp), cmd->c_opcode, cmd->c_arg, cmd->c_data, + cmd->c_datalen, cmd->c_flags)); /* * The maximum block length for commands should be the minimum @@ -799,10 +817,13 @@ sdhc_start_command(struct sdhc_host *hp, struct sdmmc_command *cmd) mode |= SDHC_AUTO_CMD12_ENABLE; } } -#if notyet - if (cmd->c_dmap != NULL && cmd->c_datalen > 0) - mode |= SDHC_DMA_ENABLE; -#endif + if (cmd->c_dmamap != NULL && cmd->c_datalen > 0) { + if (cmd->c_dmamap->dm_nsegs == 1) { + mode |= SDHC_DMA_ENABLE; + } else { + cmd->c_dmamap = NULL; + } + } /* * Prepare command register value. (2.2.6) @@ -839,6 +860,10 @@ sdhc_start_command(struct sdhc_host *hp, struct sdmmc_command *cmd) /* Alert the user not to remove the card. */ HSET1(hp, SDHC_HOST_CTL, SDHC_LED_ON); + /* Set DMA start address. */ + if (ISSET(mode, SDHC_DMA_ENABLE)) + HWRITE4(hp, SDHC_DMA_ADDR, cmd->c_dmamap->dm_segs[0].ds_addr); + /* * Start a CPU data transfer. Writing to the high order byte * of the SDHC_COMMAND register triggers the SD command. (1.5) @@ -873,7 +898,10 @@ sdhc_transfer_data(struct sdhc_host *hp, struct sdmmc_command *cmd) } #endif - error = sdhc_transfer_data_pio(hp, cmd); + if (cmd->c_dmamap != NULL) + error = sdhc_transfer_data_dma(hp, cmd); + else + error = sdhc_transfer_data_pio(hp, cmd); if (error) cmd->c_error = error; SET(cmd->c_flags, SCF_ITSDONE); @@ -883,6 +911,45 @@ sdhc_transfer_data(struct sdhc_host *hp, struct sdmmc_command *cmd) } static int +sdhc_transfer_data_dma(struct sdhc_host *hp, struct sdmmc_command *cmd) +{ + bus_dmamap_t dmap = cmd->c_dmamap; + uint16_t blklen = cmd->c_blklen; + uint16_t blkcnt = cmd->c_datalen / blklen; + uint16_t remain; + int error = 0; + + for (;;) { + if (!sdhc_wait_intr(hp, + SDHC_DMA_INTERRUPT|SDHC_TRANSFER_COMPLETE, + SDHC_DMA_TIMEOUT)) { + error = ETIMEDOUT; + break; + } + + /* single block mode */ + if (blkcnt == 1) + break; + + /* multi block mode */ + remain = HREAD2(hp, SDHC_BLOCK_COUNT); + if (remain == 0) + break; + + HWRITE4(hp, SDHC_DMA_ADDR, + dmap->dm_segs[0].ds_addr + (blkcnt - remain) * blklen); + } + +#if 0 + if (error == 0 && !sdhc_wait_intr(hp, SDHC_TRANSFER_COMPLETE, + SDHC_TRANSFER_TIMEOUT)) + error = ETIMEDOUT; +#endif + + return error; +} + +static int sdhc_transfer_data_pio(struct sdhc_host *hp, struct sdmmc_command *cmd) { uint8_t *data = cmd->c_data; diff --git a/sys/dev/sdmmc/sdhcvar.h b/sys/dev/sdmmc/sdhcvar.h index 617800f6a18..382d0ff4666 100644 --- a/sys/dev/sdmmc/sdhcvar.h +++ b/sys/dev/sdmmc/sdhcvar.h @@ -1,4 +1,4 @@ -/* $NetBSD: sdhcvar.h,v 1.3 2010/02/24 22:38:08 dyoung Exp $ */ +/* $NetBSD: sdhcvar.h,v 1.4 2010/03/27 03:04:52 nonaka Exp $ */ /* $OpenBSD: sdhcvar.h,v 1.3 2007/09/06 08:01:01 jsg Exp $ */ /* @@ -44,8 +44,9 @@ struct sdhc_softc { int sdhc_host_found(struct sdhc_softc *, bus_space_tag_t, bus_space_handle_t, bus_size_t); int sdhc_intr(void *); -bool sdhc_suspend(device_t dev, const pmf_qual_t *qual); -bool sdhc_resume(device_t dev, const pmf_qual_t *qual); -bool sdhc_shutdown(device_t dev, int flags); +int sdhc_detach(device_t, int); +bool sdhc_suspend(device_t, const pmf_qual_t *); +bool sdhc_resume(device_t, const pmf_qual_t *); +bool sdhc_shutdown(device_t, int); #endif /* _SDHCVAR_H_ */ |
