diff options
Diffstat (limited to 'drivers/staging/brcm80211/brcmfmac/bcmsdh.c')
| -rw-r--r-- | drivers/staging/brcm80211/brcmfmac/bcmsdh.c | 150 |
1 files changed, 149 insertions, 1 deletions
diff --git a/drivers/staging/brcm80211/brcmfmac/bcmsdh.c b/drivers/staging/brcm80211/brcmfmac/bcmsdh.c index 97c0f9d3526..5fdeeaf8aba 100644 --- a/drivers/staging/brcm80211/brcmfmac/bcmsdh.c +++ b/drivers/staging/brcm80211/brcmfmac/bcmsdh.c @@ -17,8 +17,10 @@ #include <linux/types.h> #include <linux/netdevice.h> +#include <linux/pci.h> #include <linux/pci_ids.h> #include <linux/sched.h> +#include <linux/completion.h> #include <defs.h> #include <brcm_hw_ids.h> @@ -29,12 +31,15 @@ #include "sbsdio.h" /* BRCM sdio device core */ #include "dngl_stats.h" #include "dhd.h" +#include "dhd_bus.h" +#include "sdio_host.h" #define SDIOH_API_ACCESS_RETRY_LIMIT 2 #define BRCMF_SD_ERROR_VAL 0x0001 /* Error */ #define BRCMF_SD_INFO_VAL 0x0002 /* Info */ + #ifdef BCMDBG #define BRCMF_SD_ERROR(x) \ do { \ @@ -53,7 +58,8 @@ #define BRCMF_SD_INFO(x) #endif /* BCMDBG */ -const uint brcmf_sdio_msglevel = BRCMF_SD_ERROR_VAL; +/* debugging macros */ +#define SDLX_MSG(x) struct brcmf_sdio_card { bool init_success; /* underlying driver successfully attached */ @@ -63,9 +69,46 @@ struct brcmf_sdio_card { reg_read/reg_write call */ u32 sbwad; /* Save backplane window address */ }; + +/** + * SDIO Host Controller info + */ +struct sdio_hc { + struct sdio_hc *next; + struct device *dev; /* platform device handle */ + void *regs; /* SDIO Host Controller address */ + struct brcmf_sdio_card *card; + void *ch; + unsigned int oob_irq; + unsigned long oob_flags; /* OOB Host specifiction + as edge and etc */ + bool oob_irq_registered; +}; + /* local copy of bcm sd handler */ static struct brcmf_sdio_card *l_card; +const uint brcmf_sdio_msglevel = BRCMF_SD_ERROR_VAL; + +static struct sdio_hc *sdhcinfo; + +/* driver info, initialized when brcmf_sdio_register is called */ +static struct brcmf_sdioh_driver drvinfo = { NULL, NULL }; + +/* Module parameters specific to each host-controller driver */ + +module_param(sd_msglevel, uint, 0); + +extern uint sd_f2_blocksize; +module_param(sd_f2_blocksize, int, 0); + +/* forward declarations */ +int brcmf_sdio_probe(struct device *dev); +EXPORT_SYMBOL(brcmf_sdio_probe); + +int brcmf_sdio_remove(struct device *dev); +EXPORT_SYMBOL(brcmf_sdio_remove); + struct brcmf_sdio_card* brcmf_sdcard_attach(void *cfghdl, u32 *regsva, uint irq) { @@ -500,3 +543,108 @@ u32 brcmf_sdcard_cur_sbwad(struct brcmf_sdio_card *card) return card->sbwad; } + +int brcmf_sdio_probe(struct device *dev) +{ + struct sdio_hc *sdhc = NULL; + u32 regs = 0; + struct brcmf_sdio_card *card = NULL; + int irq = 0; + u32 vendevid; + unsigned long irq_flags = 0; + + /* allocate SDIO Host Controller state info */ + sdhc = kzalloc(sizeof(struct sdio_hc), GFP_ATOMIC); + if (!sdhc) { + SDLX_MSG(("%s: out of memory\n", __func__)); + goto err; + } + sdhc->dev = (void *)dev; + + card = brcmf_sdcard_attach((void *)0, ®s, irq); + if (!card) { + SDLX_MSG(("%s: attach failed\n", __func__)); + goto err; + } + + sdhc->card = card; + sdhc->oob_irq = irq; + sdhc->oob_flags = irq_flags; + sdhc->oob_irq_registered = false; /* to make sure.. */ + + /* chain SDIO Host Controller info together */ + sdhc->next = sdhcinfo; + sdhcinfo = sdhc; + /* Read the vendor/device ID from the CIS */ + vendevid = brcmf_sdcard_query_device(card); + + /* try to attach to the target device */ + sdhc->ch = drvinfo.attach((vendevid >> 16), (vendevid & 0xFFFF), + 0, 0, 0, 0, regs, card); + if (!sdhc->ch) { + SDLX_MSG(("%s: device attach failed\n", __func__)); + goto err; + } + + return 0; + + /* error handling */ +err: + if (sdhc) { + if (sdhc->card) + brcmf_sdcard_detach(sdhc->card); + kfree(sdhc); + } + + return -ENODEV; +} + +int brcmf_sdio_remove(struct device *dev) +{ + struct sdio_hc *sdhc, *prev; + + sdhc = sdhcinfo; + drvinfo.detach(sdhc->ch); + brcmf_sdcard_detach(sdhc->card); + /* find the SDIO Host Controller state for this pdev + and take it out from the list */ + for (sdhc = sdhcinfo, prev = NULL; sdhc; sdhc = sdhc->next) { + if (sdhc->dev == (void *)dev) { + if (prev) + prev->next = sdhc->next; + else + sdhcinfo = NULL; + break; + } + prev = sdhc; + } + if (!sdhc) { + SDLX_MSG(("%s: failed\n", __func__)); + return 0; + } + + /* release SDIO Host Controller info */ + kfree(sdhc); + return 0; +} + +int brcmf_sdio_register(struct brcmf_sdioh_driver *driver) +{ + drvinfo = *driver; + + SDLX_MSG(("Linux Kernel SDIO/MMC Driver\n")); + return brcmf_sdio_function_init(); +} + +void brcmf_sdio_unregister(void) +{ + brcmf_sdio_function_cleanup(); +} + +void brcmf_sdio_wdtmr_enable(bool enable) +{ + if (enable) + brcmf_sdbrcm_wd_timer(sdhcinfo->ch, brcmf_watchdog_ms); + else + brcmf_sdbrcm_wd_timer(sdhcinfo->ch, 0); +} |