diff options
Diffstat (limited to 'drivers/net/wireless/sd8797/mlinux/moal_sdio_mmc.c')
| -rw-r--r-- | drivers/net/wireless/sd8797/mlinux/moal_sdio_mmc.c | 734 |
1 files changed, 734 insertions, 0 deletions
diff --git a/drivers/net/wireless/sd8797/mlinux/moal_sdio_mmc.c b/drivers/net/wireless/sd8797/mlinux/moal_sdio_mmc.c new file mode 100644 index 000000000000..f09f33e6435d --- /dev/null +++ b/drivers/net/wireless/sd8797/mlinux/moal_sdio_mmc.c @@ -0,0 +1,734 @@ +/** @file moal_sdio_mmc.c + * + * @brief This file contains SDIO MMC IF (interface) module + * related functions. + * + * Copyright (C) 2008-2011, Marvell International Ltd. + * + * This software file (the "File") is distributed by Marvell International + * Ltd. under the terms of the GNU General Public License Version 2, June 1991 + * (the "License"). You may use, redistribute and/or modify this File in + * accordance with the terms and conditions of the License, a copy of which + * is available by writing to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the + * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. + * + * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE + * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE + * ARE EXPRESSLY DISCLAIMED. The License provides additional details about + * this warranty disclaimer. + * + */ +/**************************************************** +Change log: + 02/25/09: Initial creation - + This file supports SDIO MMC only +****************************************************/ + +#include <linux/firmware.h> + +#include "moal_sdio.h" + +/** define marvell vendor id */ +#define MARVELL_VENDOR_ID 0x02df + +/******************************************************** + Local Variables +********************************************************/ + +/******************************************************** + Global Variables +********************************************************/ + +#ifdef SDIO_SUSPEND_RESUME +/** PM keep power */ +extern int pm_keep_power; +#endif + +/** Device ID for SD8797 */ +#define SD_DEVICE_ID_8797 (0x9129) + +/** WLAN IDs */ +static const struct sdio_device_id wlan_ids[] = { + {SDIO_DEVICE(MARVELL_VENDOR_ID, SD_DEVICE_ID_8797)}, + {}, +}; + +MODULE_DEVICE_TABLE(sdio, wlan_ids); + +int woal_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id); +void woal_sdio_remove(struct sdio_func *func); + +#ifdef SDIO_SUSPEND_RESUME +#ifdef MMC_PM_KEEP_POWER +int woal_sdio_suspend(struct device *dev); +int woal_sdio_resume(struct device *dev); + +static struct dev_pm_ops wlan_sdio_pm_ops = { + .suspend = woal_sdio_suspend, + .resume = woal_sdio_resume, +}; +#endif +#endif +static struct sdio_driver wlan_sdio = { + .name = "wlan_sdio", + .id_table = wlan_ids, + .probe = woal_sdio_probe, + .remove = woal_sdio_remove, +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29) + .drv = { + .owner = THIS_MODULE, +#ifdef SDIO_SUSPEND_RESUME +#ifdef MMC_PM_KEEP_POWER + .pm = &wlan_sdio_pm_ops, +#endif +#endif + } +#else +#ifdef SDIO_SUSPEND_RESUME +#ifdef MMC_PM_KEEP_POWER + .drv = { + .pm = &wlan_sdio_pm_ops, + } +#endif +#endif +#endif +}; + +/******************************************************** + Local Functions +********************************************************/ +/** @brief This function dump the sdio register + * + * @param handle A Pointer to the moal_handle structure + * @return N/A + */ +void +woal_dump_sdio_reg(moal_handle * handle) +{ + int ret = 0; + t_u8 data; + data = + sdio_f0_readb(((struct sdio_mmc_card *) handle->card)->func, 0x05, + &ret); + PRINTM(MMSG, "fun0: reg 0x05=0x%x ret=%d\n", data, ret); + data = + sdio_f0_readb(((struct sdio_mmc_card *) handle->card)->func, 0x04, + &ret); + PRINTM(MMSG, "fun0: reg 0x04=0x%x ret=%d\n", data, ret); + data = + sdio_readb(((struct sdio_mmc_card *) handle->card)->func, 0x03, &ret); + PRINTM(MMSG, "fun1: reg 0x03=0x%x ret=%d\n", data, ret); + data = + sdio_readb(((struct sdio_mmc_card *) handle->card)->func, 0x04, &ret); + PRINTM(MMSG, "fun1: reg 0x04=0x%x ret=%d\n", data, ret); + data = + sdio_readb(((struct sdio_mmc_card *) handle->card)->func, 0x05, &ret); + PRINTM(MMSG, "fun1: reg 0x05=0x%x ret=%d\n", data, ret); + data = + sdio_readb(((struct sdio_mmc_card *) handle->card)->func, 0x60, &ret); + PRINTM(MMSG, "fun1: reg 0x60=0x%x ret=%d\n", data, ret); + data = + sdio_readb(((struct sdio_mmc_card *) handle->card)->func, 0x61, &ret); + PRINTM(MMSG, "fun1: reg 0x61=0x%x ret=%d\n", data, ret); + return; +} + +/******************************************************** + Global Functions +********************************************************/ + +/** + * @brief This function handles the interrupt. + * + * @param func A pointer to the sdio_func structure + * @return N/A + */ +static void +woal_sdio_interrupt(struct sdio_func *func) +{ + moal_handle *handle; + struct sdio_mmc_card *card; + + ENTER(); + + card = sdio_get_drvdata(func); + if (!card || !card->handle) { + PRINTM(MINFO, + "sdio_mmc_interrupt(func = %p) card or handle is NULL, card=%p\n", + func, card); + LEAVE(); + return; + } + handle = card->handle; + + PRINTM(MINFO, "*** IN SDIO IRQ ***\n"); + woal_interrupt(handle); + + LEAVE(); +} + +/** @brief This function handles client driver probe. + * + * @param func A pointer to sdio_func structure. + * @param id A pointer to sdio_device_id structure. + * @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE/error code + */ +int +woal_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id) +{ + int ret = MLAN_STATUS_SUCCESS; + struct sdio_mmc_card *card = NULL; + + ENTER(); + + PRINTM(MINFO, "vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n", + func->vendor, func->device, func->class, func->num); + + card = kzalloc(sizeof(struct sdio_mmc_card), GFP_KERNEL); + if (!card) { + PRINTM(MFATAL, "Failed to allocate memory in probe function!\n"); + LEAVE(); + return -ENOMEM; + } + + card->func = func; + +#ifdef MMC_QUIRK_BLKSZ_FOR_BYTE_MODE + /* The byte mode patch is available in kernel MMC driver which fixes one + issue in MP-A transfer. bit1: use func->cur_blksize for byte mode */ + func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE; +#endif +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + /* wait for chip fully wake up */ + if (!func->enable_timeout) + func->enable_timeout = 200; +#endif + sdio_claim_host(func); + ret = sdio_enable_func(func); + if (ret) { + sdio_disable_func(func); + sdio_release_host(func); + kfree(card); + PRINTM(MFATAL, "sdio_enable_func() failed: ret=%d\n", ret); + LEAVE(); + return -EIO; + } + sdio_release_host(func); + if (NULL == woal_add_card(card)) { + PRINTM(MERROR, "woal_add_card failed\n"); + kfree(card); + sdio_claim_host(func); + sdio_disable_func(func); + sdio_release_host(func); + ret = MLAN_STATUS_FAILURE; + } + + LEAVE(); + return ret; +} + +/** @brief This function handles client driver remove. + * + * @param func A pointer to sdio_func structure. + * @return N/A + */ +void +woal_sdio_remove(struct sdio_func *func) +{ + struct sdio_mmc_card *card; + + ENTER(); + + PRINTM(MINFO, "SDIO func=%d\n", func->num); + + if (func) { + card = sdio_get_drvdata(func); + if (card) { + woal_remove_card(card); + kfree(card); + } + } + + LEAVE(); +} + +#ifdef SDIO_SUSPEND_RESUME +#ifdef MMC_PM_KEEP_POWER +#ifdef MMC_PM_FUNC_SUSPENDED +/** @brief This function tells lower driver that WLAN is suspended + * + * @param handle A Pointer to the moal_handle structure + * @return N/A + */ +void +woal_wlan_is_suspended(moal_handle * handle) +{ + ENTER(); + if (handle->suspend_notify_req == MTRUE) { + handle->is_suspended = MTRUE; + sdio_func_suspended(((struct sdio_mmc_card *) handle->card)->func); + } + LEAVE(); +} +#endif + +/** @brief This function handles client driver suspend + * + * @param dev A pointer to device structure + * @return MLAN_STATUS_SUCCESS or error code + */ +int +woal_sdio_suspend(struct device *dev) +{ + struct sdio_func *func = dev_to_sdio_func(dev); + mmc_pm_flag_t pm_flags = 0; + moal_handle *handle = NULL; + struct sdio_mmc_card *cardp; + int i; + int ret = MLAN_STATUS_SUCCESS; + int hs_actived = 0; + mlan_ds_ps_info pm_info; + + ENTER(); + PRINTM(MCMND, "<--- Enter woal_sdio_suspend --->\n"); + if (func) { + pm_flags = sdio_get_host_pm_caps(func); + PRINTM(MCMND, "%s: suspend: PM flags = 0x%x\n", sdio_func_id(func), + pm_flags); + if (!(pm_flags & MMC_PM_KEEP_POWER)) { + PRINTM(MERROR, "%s: cannot remain alive while host is suspended\n", + sdio_func_id(func)); + LEAVE(); + return -ENOSYS; + } + cardp = sdio_get_drvdata(func); + if (!cardp || !cardp->handle) { + PRINTM(MERROR, "Card or moal_handle structure is not valid\n"); + LEAVE(); + return MLAN_STATUS_SUCCESS; + } + } else { + PRINTM(MERROR, "sdio_func is not specified\n"); + LEAVE(); + return MLAN_STATUS_SUCCESS; + } + + handle = cardp->handle; + if (handle->is_suspended == MTRUE) { + PRINTM(MWARN, "Device already suspended\n"); + LEAVE(); + return MLAN_STATUS_SUCCESS; + } + + handle->suspend_fail = MFALSE; + memset(&pm_info, 0, sizeof(pm_info)); + if (MLAN_STATUS_SUCCESS == + woal_get_pm_info(woal_get_priv(handle, MLAN_BSS_ROLE_ANY), &pm_info)) { + if (pm_info.is_suspend_allowed == MFALSE) { + PRINTM(MMSG, "suspend not allowed!"); + ret = -EBUSY; + goto done; + } + } + for (i = 0; i < handle->priv_num; i++) + netif_device_detach(handle->priv[i]->netdev); + + if (pm_keep_power) { + /* Enable the Host Sleep */ +#ifdef MMC_PM_FUNC_SUSPENDED + handle->suspend_notify_req = MTRUE; +#endif + hs_actived = woal_enable_hs(woal_get_priv(handle, MLAN_BSS_ROLE_ANY)); +#ifdef MMC_PM_FUNC_SUSPENDED + handle->suspend_notify_req = MFALSE; +#endif + if (hs_actived) { +#ifdef MMC_PM_SKIP_RESUME_PROBE + PRINTM(MCMND, "suspend with MMC_PM_KEEP_POWER and " + "MMC_PM_SKIP_RESUME_PROBE\n"); + ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER | + MMC_PM_SKIP_RESUME_PROBE); +#else + PRINTM(MCMND, "suspend with MMC_PM_KEEP_POWER\n"); + ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); +#endif + } else { + PRINTM(MMSG, "HS not actived, suspend fail!"); + ret = -EBUSY; + goto done; + } + } + + /* Indicate device suspended */ + handle->is_suspended = MTRUE; + done: + PRINTM(MCMND, "<--- Leave woal_sdio_suspend --->\n"); + LEAVE(); + return ret; +} + +/** @brief This function handles client driver resume + * + * @param dev A pointer to device structure + * @return MLAN_STATUS_SUCCESS + */ +int +woal_sdio_resume(struct device *dev) +{ + struct sdio_func *func = dev_to_sdio_func(dev); + mmc_pm_flag_t pm_flags = 0; + moal_handle *handle = NULL; + struct sdio_mmc_card *cardp; + int i; + + ENTER(); + PRINTM(MCMND, "<--- Enter woal_sdio_resume --->\n"); + if (func) { + pm_flags = sdio_get_host_pm_caps(func); + PRINTM(MCMND, "%s: resume: PM flags = 0x%x\n", sdio_func_id(func), + pm_flags); + cardp = sdio_get_drvdata(func); + if (!cardp || !cardp->handle) { + PRINTM(MERROR, "Card or moal_handle structure is not valid\n"); + LEAVE(); + return MLAN_STATUS_SUCCESS; + } + } else { + PRINTM(MERROR, "sdio_func is not specified\n"); + LEAVE(); + return MLAN_STATUS_SUCCESS; + } + handle = cardp->handle; + + if (handle->is_suspended == MFALSE) { + PRINTM(MWARN, "Device already resumed\n"); + LEAVE(); + return MLAN_STATUS_SUCCESS; + } + + handle->is_suspended = MFALSE; + for (i = 0; i < handle->priv_num; i++) + netif_device_attach(handle->priv[i]->netdev); + + /* Disable Host Sleep */ + woal_cancel_hs(woal_get_priv(handle, MLAN_BSS_ROLE_ANY), MOAL_NO_WAIT); + PRINTM(MCMND, "<--- Leave woal_sdio_resume --->\n"); + LEAVE(); + return MLAN_STATUS_SUCCESS; +} +#endif +#endif /* SDIO_SUSPEND_RESUME */ + +/** + * @brief This function writes data into card register + * + * @param handle A Pointer to the moal_handle structure + * @param reg Register offset + * @param data Value + * + * @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE + */ +mlan_status +woal_write_reg(moal_handle * handle, t_u32 reg, t_u32 data) +{ + mlan_status ret = MLAN_STATUS_FAILURE; + sdio_writeb(((struct sdio_mmc_card *) handle->card)->func, (t_u8) data, reg, + (int *) &ret); + return ret; +} + +/** + * @brief This function reads data from card register + * + * @param handle A Pointer to the moal_handle structure + * @param reg Register offset + * @param data Value + * + * @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE + */ +mlan_status +woal_read_reg(moal_handle * handle, t_u32 reg, t_u32 * data) +{ + mlan_status ret = MLAN_STATUS_FAILURE; + t_u8 val; + + val = + sdio_readb(((struct sdio_mmc_card *) handle->card)->func, reg, + (int *) &ret); + *data = val; + + return ret; +} + +/** + * @brief This function writes multiple bytes into card memory + * + * @param handle A Pointer to the moal_handle structure + * @param pmbuf Pointer to mlan_buffer structure + * @param port Port + * @param timeout Time out value + * + * @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE + */ +mlan_status +woal_write_data_sync(moal_handle * handle, mlan_buffer * pmbuf, t_u32 port, + t_u32 timeout) +{ + mlan_status ret = MLAN_STATUS_FAILURE; + t_u8 *buffer = (t_u8 *) (pmbuf->pbuf + pmbuf->data_offset); + t_u8 blkmode = (port & MLAN_SDIO_BYTE_MODE_MASK) ? BYTE_MODE : BLOCK_MODE; + t_u32 blksz = (blkmode == BLOCK_MODE) ? MLAN_SDIO_BLOCK_SIZE : 1; + t_u32 blkcnt = + (blkmode == + BLOCK_MODE) ? (pmbuf->data_len / + MLAN_SDIO_BLOCK_SIZE) : pmbuf->data_len; + t_u32 ioport = (port & MLAN_SDIO_IO_PORT_MASK); +#ifdef SDIO_MMC_DEBUG + handle->cmd53w = 1; +#endif + if (!sdio_writesb + (((struct sdio_mmc_card *) handle->card)->func, ioport, buffer, + blkcnt * blksz)) + ret = MLAN_STATUS_SUCCESS; +#ifdef SDIO_MMC_DEBUG + handle->cmd53w = 2; +#endif + return ret; +} + +/** + * @brief This function reads multiple bytes from card memory + * + * @param handle A Pointer to the moal_handle structure + * @param pmbuf Pointer to mlan_buffer structure + * @param port Port + * @param timeout Time out value + * + * @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE + */ +mlan_status +woal_read_data_sync(moal_handle * handle, mlan_buffer * pmbuf, t_u32 port, + t_u32 timeout) +{ + mlan_status ret = MLAN_STATUS_FAILURE; + t_u8 *buffer = (t_u8 *) (pmbuf->pbuf + pmbuf->data_offset); + t_u8 blkmode = (port & MLAN_SDIO_BYTE_MODE_MASK) ? BYTE_MODE : BLOCK_MODE; + t_u32 blksz = (blkmode == BLOCK_MODE) ? MLAN_SDIO_BLOCK_SIZE : 1; + t_u32 blkcnt = + (blkmode == + BLOCK_MODE) ? (pmbuf->data_len / + MLAN_SDIO_BLOCK_SIZE) : pmbuf->data_len; + t_u32 ioport = (port & MLAN_SDIO_IO_PORT_MASK); + +#ifdef SDIO_MMC_DEBUG + handle->cmd53r = 1; +#endif + if (!sdio_readsb + (((struct sdio_mmc_card *) handle->card)->func, buffer, ioport, + blkcnt * blksz)) + ret = MLAN_STATUS_SUCCESS; + else + woal_dump_sdio_reg(handle); +#ifdef SDIO_MMC_DEBUG + handle->cmd53r = 2; +#endif + return ret; +} + +/** + * @brief This function registers the IF module in bus driver + * + * @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE + */ +mlan_status +woal_bus_register(void) +{ + mlan_status ret = MLAN_STATUS_SUCCESS; + + ENTER(); + + /* SDIO Driver Registration */ + if (sdio_register_driver(&wlan_sdio)) { + PRINTM(MFATAL, "SDIO Driver Registration Failed \n"); + LEAVE(); + return MLAN_STATUS_FAILURE; + } + + LEAVE(); + return ret; +} + +/** + * @brief This function de-registers the IF module in bus driver + * + * @return N/A + */ +void +woal_bus_unregister(void) +{ + ENTER(); + + /* SDIO Driver Unregistration */ + sdio_unregister_driver(&wlan_sdio); + + LEAVE(); +} + +/** + * @brief This function de-registers the device + * + * @param handle A pointer to moal_handle structure + * @return N/A + */ +void +woal_unregister_dev(moal_handle * handle) +{ + ENTER(); + if (handle->card) { + /* Release the SDIO IRQ */ + sdio_claim_host(((struct sdio_mmc_card *) handle->card)->func); + sdio_release_irq(((struct sdio_mmc_card *) handle->card)->func); + sdio_disable_func(((struct sdio_mmc_card *) handle->card)->func); + sdio_release_host(((struct sdio_mmc_card *) handle->card)->func); + + sdio_set_drvdata(((struct sdio_mmc_card *) handle->card)->func, NULL); + + PRINTM(MWARN, "Making the sdio dev card as NULL\n"); + } + + LEAVE(); +} + +/** + * @brief This function registers the device + * + * @param handle A pointer to moal_handle structure + * @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE + */ +mlan_status +woal_register_dev(moal_handle * handle) +{ + int ret = MLAN_STATUS_SUCCESS; + struct sdio_mmc_card *card = handle->card; + struct sdio_func *func; + + ENTER(); + + func = card->func; + sdio_claim_host(func); + /* Request the SDIO IRQ */ + ret = sdio_claim_irq(func, woal_sdio_interrupt); + if (ret) { + PRINTM(MFATAL, "sdio_claim_irq failed: ret=%d\n", ret); + goto release_host; + } + + /* Set block size */ + ret = sdio_set_block_size(card->func, MLAN_SDIO_BLOCK_SIZE); + if (ret) { + PRINTM(MERROR, "sdio_set_block_seize(): cannot set SDIO block size\n"); + ret = MLAN_STATUS_FAILURE; + goto release_irq; + } + + sdio_release_host(func); + sdio_set_drvdata(func, card); + + handle->hotplug_device = &func->dev; + + LEAVE(); + return MLAN_STATUS_SUCCESS; + + release_irq: + sdio_release_irq(func); + release_host: + sdio_release_host(func); + handle->card = NULL; + + LEAVE(); + return MLAN_STATUS_FAILURE; +} + +/** + * @brief This function set bus clock on/off + * + * @param handle A pointer to moal_handle structure + * @param option TRUE--on , FALSE--off + * @return MLAN_STATUS_SUCCESS + */ +int +woal_sdio_set_bus_clock(moal_handle * handle, t_u8 option) +{ + struct sdio_mmc_card *cardp = (struct sdio_mmc_card *) handle->card; + struct mmc_host *host = cardp->func->card->host; + + ENTER(); + if (option == MTRUE) { + /* restore value if non-zero */ + if (cardp->host_clock) + host->ios.clock = cardp->host_clock; + } else { + /* backup value if non-zero, then clear */ + if (host->ios.clock) + cardp->host_clock = host->ios.clock; + host->ios.clock = 0; + } + + host->ops->set_ios(host, &host->ios); + LEAVE(); + return MLAN_STATUS_SUCCESS; +} + +/** + * @brief This function updates card reg based on the Cmd52 value in dev structure + * + * @param handle A pointer to moal_handle structure + * @param func A pointer to store func variable + * @param reg A pointer to store reg variable + * @param val A pointer to store val variable + * @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE + */ +int +woal_sdio_read_write_cmd52(moal_handle * handle, int func, int reg, int val) +{ + int ret = MLAN_STATUS_SUCCESS; + struct sdio_mmc_card *card = (struct sdio_mmc_card *) handle->card; + + ENTER(); + /* Save current func and reg for read */ + handle->cmd52_func = func; + handle->cmd52_reg = reg; + sdio_claim_host(card->func); + if (val >= 0) { + /* Perform actual write only if val is provided */ + if (func) + sdio_writeb(card->func, val, reg, &ret); + else + sdio_f0_writeb(card->func, val, reg, &ret); + if (ret) { + PRINTM(MERROR, "Cannot write value (0x%x) to func %d reg 0x%x\n", + val, func, reg); + } else { + PRINTM(MMSG, "write value (0x%x) to func %d reg 0x%x\n", (u8) val, + func, reg); + handle->cmd52_val = val; + } + } else { + if (func) + val = sdio_readb(card->func, reg, &ret); + else + val = sdio_f0_readb(card->func, reg, &ret); + if (ret) { + PRINTM(MERROR, "Cannot read value from func %d reg 0x%x\n", func, + reg); + } else { + PRINTM(MMSG, "read value (0x%x) from func %d reg 0x%x\n", (u8) val, + func, reg); + handle->cmd52_val = val; + } + } + sdio_release_host(card->func); + LEAVE(); + return ret; +} |