diff options
Diffstat (limited to 'libertas_uap/uap_sdio_mmc.c')
| -rw-r--r-- | libertas_uap/uap_sdio_mmc.c | 1428 |
1 files changed, 1428 insertions, 0 deletions
diff --git a/libertas_uap/uap_sdio_mmc.c b/libertas_uap/uap_sdio_mmc.c new file mode 100644 index 0000000..86f55b5 --- /dev/null +++ b/libertas_uap/uap_sdio_mmc.c @@ -0,0 +1,1428 @@ +/** @file uap_sdio_mmc.c + * @brief This file contains SDIO IF (interface) module + * related functions. + * + * Copyright (C) 2007-2009, 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 along with the File in the gpl.txt file or by writing to + * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + * 02111-1307 or on the worldwide web at http://www.gnu.org/licenses/gpl.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: +****************************************************/ + +#include "uap_sdio_mmc.h" + +#include <linux/firmware.h> + +/** define SDIO block size */ +/* We support up to 480-byte block size due to FW buffer limitation. */ +#define SD_BLOCK_SIZE 256 + +/** define allocated buffer size */ +#define ALLOC_BUF_SIZE (((MAX(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, \ + MRVDRV_SIZE_OF_CMD_BUFFER) + INTF_HEADER_LEN \ + + SD_BLOCK_SIZE - 1) / SD_BLOCK_SIZE) * SD_BLOCK_SIZE) + +/** Max retry number of CMD53 write */ +#define MAX_WRITE_IOMEM_RETRY 2 + +/******************************************************** + Local Variables +********************************************************/ + +/** SDIO Rx unit */ +static u8 sdio_rx_unit = 0; + +/**Interrupt status */ +static u8 sd_ireg = 0; +/******************************************************** + Global Variables +********************************************************/ +extern u8 *helper_name; +extern u8 *fw_name; +/** Default helper name */ +#define DEFAULT_HELPER_NAME "mrvl/helper_sd.bin" +/** Default firmware name */ +#define DEFAULT_FW_NAME "mrvl/sd8688_ap.bin" + +/******************************************************** + Local Functions +********************************************************/ +/** + * @brief This function reads the IO register. + * + * @param priv A pointer to uap_private structure + * @param reg register to be read + * @param dat A pointer to variable that keeps returned value + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +static int +sbi_read_ioreg(uap_private * priv, u32 reg, u8 * dat) +{ + struct sdio_mmc_card *card; + int ret = UAP_STATUS_FAILURE; + + ENTER(); + + card = priv->uap_dev.card; + if (!card || !card->func) { + PRINTM(ERROR, "sbi_read_ioreg(): card or function is NULL!\n"); + goto done; + } + + *dat = sdio_readb(card->func, reg, &ret); + if (ret) { + PRINTM(ERROR, "sbi_read_ioreg(): sdio_readb failed! ret=%d\n", ret); + goto done; + } + + PRINTM(INFO, "sbi_read_ioreg() priv=%p func=%d reg=%#x dat=%#x\n", priv, + card->func->num, reg, *dat); + + done: + LEAVE(); + return ret; +} + +/** + * @brief This function writes the IO register. + * + * @param priv A pointer to uap_private structure + * @param reg register to be written + * @param dat the value to be written + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +static int +sbi_write_ioreg(uap_private * priv, u32 reg, u8 dat) +{ + struct sdio_mmc_card *card; + int ret = UAP_STATUS_FAILURE; + + ENTER(); + + card = priv->uap_dev.card; + if (!card || !card->func) { + PRINTM(ERROR, "sbi_write_ioreg(): card or function is NULL!\n"); + goto done; + } + + PRINTM(INFO, "sbi_write_ioreg() priv=%p func=%d reg=%#x dat=%#x\n", priv, + card->func->num, reg, dat); + + sdio_writeb(card->func, dat, reg, &ret); + if (ret) { + PRINTM(ERROR, "sbi_write_ioreg(): sdio_readb failed! ret=%d\n", ret); + goto done; + } + + done: + LEAVE(); + return ret; +} + +/** + * @brief This function get rx_unit value + * + * @param priv A pointer to uap_private structure + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +static int +sd_get_rx_unit(uap_private * priv) +{ + int ret = UAP_STATUS_SUCCESS; + u8 reg; + + ENTER(); + + ret = sbi_read_ioreg(priv, CARD_RX_UNIT_REG, ®); + if (ret == UAP_STATUS_SUCCESS) + sdio_rx_unit = reg; + + LEAVE(); + return ret; +} + +/** + * @brief This function reads rx length + * + * @param priv A pointer to uap_private structure + * @param dat A pointer to keep returned data + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +static int +sd_read_rx_len(uap_private * priv, u16 * dat) +{ + int ret = UAP_STATUS_SUCCESS; + u8 reg; + + ENTER(); + + ret = sbi_read_ioreg(priv, CARD_RX_LEN_REG, ®); + if (ret == UAP_STATUS_SUCCESS) + *dat = (u16) reg << sdio_rx_unit; + + LEAVE(); + return ret; +} + +/** + * @brief This function reads fw status registers + * + * @param priv A pointer to uap_private structure + * @param dat A pointer to keep returned data + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +static int +sd_read_firmware_status(uap_private * priv, u16 * dat) +{ + int ret = UAP_STATUS_SUCCESS; + u8 fws0; + u8 fws1; + + ENTER(); + + ret = sbi_read_ioreg(priv, CARD_FW_STATUS0_REG, &fws0); + if (ret < 0) { + LEAVE(); + return UAP_STATUS_FAILURE; + } + + ret = sbi_read_ioreg(priv, CARD_FW_STATUS1_REG, &fws1); + if (ret < 0) { + LEAVE(); + return UAP_STATUS_FAILURE; + } + + *dat = (((u16) fws1) << 8) | fws0; + + LEAVE(); + return UAP_STATUS_SUCCESS; +} + +/** + * @brief This function polls the card status register. + * + * @param priv A pointer to uap_private structure + * @param bits the bit mask + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +static int +mv_sdio_poll_card_status(uap_private * priv, u8 bits) +{ + int tries; + u8 cs; + + ENTER(); + + for (tries = 0; tries < MAX_POLL_TRIES; tries++) { + if (sbi_read_ioreg(priv, CARD_STATUS_REG, &cs) < 0) + break; + else if ((cs & bits) == bits) { + LEAVE(); + return UAP_STATUS_SUCCESS; + } + udelay(10); + } + + PRINTM(WARN, "mv_sdio_poll_card_status failed, tries = %d\n", tries); + + LEAVE(); + return UAP_STATUS_FAILURE; +} + +/** + * @brief This function set the sdio bus width. + * + * @param priv A pointer to uap_private structure + * @param mode 1--1 bit mode, 4--4 bit mode + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +#if 0 +static int +sdio_set_bus_width(uap_private * priv, u8 mode) +{ + ENTER(); + LEAVE(); + return UAP_STATUS_SUCCESS; +} +#endif + +/** + * @brief This function reads data from the card. + * + * @param priv A pointer to uap_private structure + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +static int +sd_card_to_host(uap_private * priv) +{ + int ret = UAP_STATUS_SUCCESS; + u16 buf_len = 0; + int buf_block_len; + int blksz; + struct sk_buff *skb = NULL; + u16 type; + u8 *payload = NULL; + struct sdio_mmc_card *card = priv->uap_dev.card; + + ENTER(); + + if (!card || !card->func) { + PRINTM(ERROR, "card or function is NULL!\n"); + ret = UAP_STATUS_FAILURE; + goto exit; + } + + /* Read the length of data to be transferred */ + ret = sd_read_rx_len(priv, &buf_len); + if (ret < 0) { + PRINTM(ERROR, "card_to_host, read scratch reg failed\n"); + ret = UAP_STATUS_FAILURE; + goto exit; + } + + /* Allocate buffer */ + blksz = SD_BLOCK_SIZE; + buf_block_len = (buf_len + blksz - 1) / blksz; + if (buf_len <= INTF_HEADER_LEN || (buf_block_len * blksz) > ALLOC_BUF_SIZE) { + PRINTM(ERROR, "card_to_host, invalid packet length: %d\n", buf_len); + ret = UAP_STATUS_FAILURE; + goto exit; + } +#ifdef PXA3XX_DMA_ALIGN + skb = dev_alloc_skb(buf_block_len * blksz + PXA3XX_DMA_ALIGNMENT); +#else + skb = dev_alloc_skb(buf_block_len * blksz); +#endif + if (skb == NULL) { + PRINTM(WARN, "No free skb\n"); + goto exit; + } +#ifdef PXA3XX_DMA_ALIGN + if ((u32) skb->data & (PXA3XX_DMA_ALIGNMENT - 1)) { + skb_put(skb, (u32) skb->data & (PXA3XX_DMA_ALIGNMENT - 1)); + skb_pull(skb, (u32) skb->data & (PXA3XX_DMA_ALIGNMENT - 1)); + } +#endif /* PXA3XX_DMA_ALIGN */ + + payload = skb->tail; + ret = sdio_readsb(card->func, payload, priv->uap_dev.ioport, + buf_block_len * blksz); + if (ret < 0) { + PRINTM(ERROR, "card_to_host, read iomem failed: %d\n", ret); + ret = UAP_STATUS_FAILURE; + goto exit; + } + HEXDUMP("SDIO Blk Rd", payload, blksz * buf_block_len); + /* + * This is SDIO specific header + * u16 length, + * u16 type (MV_TYPE_DAT = 0, MV_TYPE_CMD = 1, MV_TYPE_EVENT = 3) + */ + buf_len = uap_le16_to_cpu(*(u16 *) & payload[0]); + type = uap_le16_to_cpu(*(u16 *) & payload[2]); + switch (type) { + case MV_TYPE_EVENT: + skb_put(skb, buf_len); + skb_pull(skb, INTF_HEADER_LEN); + uap_process_event(priv, skb->data, skb->len); + kfree_skb(skb); + skb = NULL; + break; + case MV_TYPE_CMD: + skb_put(skb, buf_len); + skb_pull(skb, INTF_HEADER_LEN); + priv->adapter->cmd_pending = FALSE; + if (priv->adapter->cmd_wait_option == + HostCmd_OPTION_WAITFORRSP_SLEEPCONFIRM) { + priv->adapter->cmd_wait_option = FALSE; + uap_process_sleep_confirm_resp(priv, skb->data, skb->len); + } else if (priv->adapter->cmd_wait_option) { + memcpy(priv->adapter->CmdBuf, skb->data, skb->len); + priv->adapter->CmdSize = skb->len; + priv->adapter->cmd_wait_option = FALSE; + priv->adapter->CmdWaitQWoken = TRUE; + wake_up_interruptible(&priv->adapter->cmdwait_q); + } + kfree_skb(skb); + skb = NULL; + break; + case MV_TYPE_DAT: + skb_put(skb, buf_len); + skb_pull(skb, INTF_HEADER_LEN); + uap_process_rx_packet(priv, skb); + break; + default: + priv->stats.rx_errors++; + priv->stats.rx_dropped++; + /* Driver specified event and command resp should be handle here */ + PRINTM(INFO, "Unknown PKT type:%d\n", type); + kfree_skb(skb); + skb = NULL; + break; + } + exit: + if (ret) { + if (skb) + kfree_skb(skb); + } + + LEAVE(); + return ret; +} + +/** + * @brief This function enables the host interrupts mask + * + * @param priv A pointer to uap_private structure + * @param mask the interrupt mask + * @return UAP_STATUS_SUCCESS + */ +static int +enable_host_int_mask(uap_private * priv, u8 mask) +{ + int ret = UAP_STATUS_SUCCESS; + + ENTER(); + + /* Simply write the mask to the register */ + ret = sbi_write_ioreg(priv, HOST_INT_MASK_REG, mask); + + if (ret) { + PRINTM(WARN, "Unable to enable the host interrupt!\n"); + ret = UAP_STATUS_FAILURE; + } + + LEAVE(); + return ret; +} + +/** @brief This function disables the host interrupts mask. + * + * @param priv A pointer to uap_private structure + * @param mask the interrupt mask + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +static int +disable_host_int_mask(uap_private * priv, u8 mask) +{ + int ret = UAP_STATUS_SUCCESS; + u8 host_int_mask; + + ENTER(); + + /* Read back the host_int_mask register */ + ret = sbi_read_ioreg(priv, HOST_INT_MASK_REG, &host_int_mask); + if (ret) { + ret = UAP_STATUS_FAILURE; + goto done; + } + + /* Update with the mask and write back to the register */ + host_int_mask &= ~mask; + ret = sbi_write_ioreg(priv, HOST_INT_MASK_REG, host_int_mask); + if (ret < 0) { + PRINTM(WARN, "Unable to diable the host interrupt!\n"); + ret = UAP_STATUS_FAILURE; + goto done; + } + + done: + LEAVE(); + return ret; +} + +/******************************************************** + Global Functions +********************************************************/ + +/** + * @brief This function handles the interrupt. + * + * @param func A pointer to sdio_func structure. + * @return n/a + */ +static void +sbi_interrupt(struct sdio_func *func) +{ + struct sdio_mmc_card *card; + uap_private *priv; + u8 ireg = 0; + int ret = UAP_STATUS_SUCCESS; + + ENTER(); + + card = sdio_get_drvdata(func); + if (!card || !card->priv) { + PRINTM(MSG, "%s: sbi_interrupt(%p) card or priv is NULL, card=%p\n", + __FUNCTION__, func, card); + LEAVE(); + return; + } + priv = card->priv; +#ifdef FW_WAKEUP_TIME + if ((priv->adapter->wt_pwrup_sending != 0L) && + (priv->adapter->wt_int == 0L)) + priv->adapter->wt_int = get_utimeofday(); +#endif + + ireg = sdio_readb(card->func, HOST_INTSTATUS_REG, &ret); + if (ret) { + PRINTM(WARN, "sdio_read_ioreg: read int status register failed\n"); + goto done; + } + if (ireg != 0) { + /* + * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS + * Clear the interrupt status register and re-enable the interrupt + */ + PRINTM(INFO, "sdio_ireg = 0x%x\n", ireg); + sdio_writeb(card->func, + ~(ireg) & (DN_LD_HOST_INT_STATUS | UP_LD_HOST_INT_STATUS), + HOST_INTSTATUS_REG, &ret); + if (ret) { + PRINTM(WARN, + "sdio_write_ioreg: clear int status register failed\n"); + goto done; + } + } + OS_INT_DISABLE; + sd_ireg |= ireg; + OS_INT_RESTORE; + + uap_interrupt(priv); + done: + LEAVE(); +} + +/** + * @brief This function probe the card + * + * @param func A pointer to sdio_func structure + * @param id A pointer to structure sd_device_id + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +static int +uap_probe(struct sdio_func *func, const struct sdio_device_id *id) +{ + int ret = UAP_STATUS_FAILURE; + struct sdio_mmc_card *card = NULL; + + ENTER(); + + PRINTM(MSG, "%s: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n", + __FUNCTION__, func->vendor, func->device, func->class, func->num); + + card = kzalloc(sizeof(struct sdio_mmc_card), GFP_KERNEL); + if (!card) { + ret = -ENOMEM; + goto done; + } + + card->func = func; + + if (!uap_add_card(card)) { + PRINTM(ERROR, "%s: uap_add_callback failed\n", __FUNCTION__); + kfree(card); + ret = UAP_STATUS_FAILURE; + goto done; + } + + ret = UAP_STATUS_SUCCESS; + + done: + LEAVE(); + return ret; +} + +/** + * @brief This function removes the card + * + * @param func A pointer to sdio_func structure + * @return N/A + */ +static void +uap_remove(struct sdio_func *func) +{ + struct sdio_mmc_card *card; + + ENTER(); + + if (func) { + card = sdio_get_drvdata(func); + if (card) { + uap_remove_card(card); + kfree(card); + } + } + + LEAVE(); +} + +#ifdef CONFIG_PM +/** + * @brief This function handles client driver suspend + * + * @param func A pointer to sdio_func structure + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +int +uap_suspend(struct sdio_func *func) +{ + ENTER(); + LEAVE(); + return 0; +} + +/** + * @brief This function handles client driver resume + * + * @param func A pointer to sdio_func structure + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +int +uap_resume(struct sdio_func *func) +{ + ENTER(); + LEAVE(); + return 0; +} +#endif + +/** Device ID for SD8688 */ +#define SD_DEVICE_ID_8688_UAP 0x9104 +/** UAP IDs */ +static const struct sdio_device_id uap_ids[] = { + {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SD_DEVICE_ID_8688_UAP)}, + {}, +}; + +MODULE_DEVICE_TABLE(sdio, uap_ids); + +static struct sdio_driver uap_sdio = { + .name = "uap_sdio", + .id_table = uap_ids, + .probe = uap_probe, + .remove = uap_remove, +#ifdef CONFIG_PM +/* .suspend = uap_suspend, */ +/* .resume = uap_resume, */ +#endif + +}; + +/** + * @brief This function registers the IF module in bus driver. + * + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +int __init +sbi_register() +{ + int ret = UAP_STATUS_SUCCESS; + + ENTER(); + + /* SDIO Driver Registration */ + if (sdio_register_driver(&uap_sdio) != 0) { + PRINTM(FATAL, "SDIO Driver Registration Failed \n"); + ret = UAP_STATUS_FAILURE; + } + + LEAVE(); + return ret; +} + +/** + * @brief This function de-registers the IF module in bus driver. + * + * @return n/a + */ +void __exit +sbi_unregister(void) +{ + ENTER(); + + /* SDIO Driver Unregistration */ + sdio_unregister_driver(&uap_sdio); + + LEAVE(); +} + +/** + * @brief This function checks the interrupt status and handle it accordingly. + * + * @param priv A pointer to uap_private structure + * @param ireg A pointer to variable that keeps returned value + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +int +sbi_get_int_status(uap_private * priv, u8 * ireg) +{ + int ret = UAP_STATUS_SUCCESS; + u8 sdio_ireg = 0; + struct sdio_mmc_card *card = priv->uap_dev.card; + + ENTER(); + + *ireg = 0; + OS_INT_DISABLE; + sdio_ireg = sd_ireg; + sd_ireg = 0; + OS_INT_RESTORE; + + sdio_claim_host(card->func); + + if (sdio_ireg & DN_LD_HOST_INT_STATUS) { /* tx_done INT */ + if (!priv->uap_dev.cmd_sent) { /* tx_done already received */ + PRINTM(INFO, + "warning: tx_done already received: tx_dnld_rdy=0x%x int status=0x%x\n", + priv->uap_dev.cmd_sent, sdio_ireg); + } else { + priv->uap_dev.cmd_sent = FALSE; + priv->uap_dev.data_sent = FALSE; + if ( (priv->uap_dev.netdev->reg_state == NETREG_REGISTERED) && (skb_queue_len(&priv->adapter->tx_queue) < TX_LOW_WATERMARK)) { + os_start_queue(priv); + } + } + } + if (sdio_ireg & UP_LD_HOST_INT_STATUS) { + sd_card_to_host(priv); + } + + *ireg = sdio_ireg; + ret = UAP_STATUS_SUCCESS; + sdio_release_host(card->func); + + LEAVE(); + return ret; +} + +/** + * @brief This function disables the host interrupts. + * + * @param priv A pointer to uap_private structure + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +int +sbi_disable_host_int(uap_private * priv) +{ + struct sdio_mmc_card *card = priv->uap_dev.card; + int ret; + + ENTER(); + + sdio_claim_host(card->func); + ret = disable_host_int_mask(priv, HIM_DISABLE); + sdio_release_host(card->func); + + LEAVE(); + return ret; +} + +/** + * @brief This function enables the host interrupts. + * + * @param priv A pointer to uap_private structure + * @return UAP_STATUS_SUCCESS + */ +int +sbi_enable_host_int(uap_private * priv) +{ + struct sdio_mmc_card *card = priv->uap_dev.card; + int ret; + + ENTER(); + + sdio_claim_host(card->func); + ret = enable_host_int_mask(priv, HIM_ENABLE); + sdio_release_host(card->func); + + LEAVE(); + return ret; +} + +/** + * @brief This function de-registers the device. + * + * @param priv A pointer to uap_private structure + * @return UAP_STATUS_SUCCESS + */ +int +sbi_unregister_dev(uap_private * priv) +{ + struct sdio_mmc_card *card = priv->uap_dev.card; + + ENTER(); + + if (!card || !card->func) { + PRINTM(ERROR, "Error: card or function is NULL!\n"); + goto done; + } + + sdio_claim_host(card->func); + sdio_release_irq(card->func); + sdio_disable_func(card->func); + sdio_release_host(card->func); + + sdio_set_drvdata(card->func, NULL); + + done: + LEAVE(); + return UAP_STATUS_SUCCESS; +} + +/** + * @brief This function registers the device. + * + * @param priv A pointer to uap_private structure + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +int +sbi_register_dev(uap_private * priv) +{ + int ret = UAP_STATUS_FAILURE; + u8 reg; + struct sdio_mmc_card *card = priv->uap_dev.card; + struct sdio_func *func; + + ENTER(); + + if (!card || !card->func) { + PRINTM(ERROR, "Error: card or function is NULL!\n"); + goto done; + } + + func = card->func; + + /* Initialize the private structure */ + priv->uap_dev.ioport = 0; + + sdio_claim_host(func); + + ret = sdio_enable_func(func); + if (ret) { + PRINTM(FATAL, "sdio_enable_func() failed: ret=%d\n", ret); + goto release_host; + } + + ret = sdio_claim_irq(func, sbi_interrupt); + if (ret) { + PRINTM(FATAL, "sdio_claim_irq failed: ret=%d\n", ret); + goto disable_func; + } + + /* Read the IO port */ + ret = sbi_read_ioreg(priv, IO_PORT_0_REG, ®); + if (ret) + goto release_irq; + else + priv->uap_dev.ioport |= reg; + + ret = sbi_read_ioreg(priv, IO_PORT_1_REG, ®); + if (ret) + goto release_irq; + else + priv->uap_dev.ioport |= (reg << 8); + + ret = sbi_read_ioreg(priv, IO_PORT_2_REG, ®); + if (ret) + goto release_irq; + else + priv->uap_dev.ioport |= (reg << 16); + + PRINTM(INFO, "SDIO FUNC #%d IO port: 0x%x\n", func->num, + priv->uap_dev.ioport); + + ret = sdio_set_block_size(card->func, SD_BLOCK_SIZE); + if (ret) { + PRINTM(ERROR, "%s: cannot set SDIO block size\n", __FUNCTION__); + ret = UAP_STATUS_FAILURE; + goto release_irq; + } + priv->hotplug_device = &func->dev; + + if (helper_name == NULL) { + helper_name = DEFAULT_HELPER_NAME; + } + if (fw_name == NULL) { + fw_name = DEFAULT_FW_NAME; + } + sdio_release_host(func); + + sdio_set_drvdata(func, card); + + ret = UAP_STATUS_SUCCESS; + goto done; + + release_irq: + sdio_release_irq(func); + disable_func: + sdio_disable_func(func); + release_host: + sdio_release_host(func); + + done: + LEAVE(); + return ret; +} + +/** + * @brief This function sends data to the card. + * + * @param priv A pointer to uap_private structure + * @param payload A pointer to the data/cmd buffer + * @param nb the length of data/cmd + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +int +sbi_host_to_card(uap_private * priv, u8 * payload, u16 nb) +{ + struct sdio_mmc_card *card = priv->uap_dev.card; + int ret = UAP_STATUS_SUCCESS; + int buf_block_len; + int blksz; + int i = 0; + u8 *buf = NULL; +#ifdef PXA3XX_DMA_ALIGN + void *tmpbuf = NULL; + int tmpbufsz; +#endif + + ENTER(); + + if (!card || !card->func) { + PRINTM(ERROR, "card or function is NULL!\n"); + LEAVE(); + return UAP_STATUS_FAILURE; + } + buf = payload; +#ifdef PXA3XX_DMA_ALIGN + if ((u32) payload & (PXA3XX_DMA_ALIGNMENT - 1)) { + tmpbufsz = ALIGN_SZ(nb, PXA3XX_DMA_ALIGNMENT); + tmpbuf = kmalloc(tmpbufsz, GFP_KERNEL); + memset(tmpbuf, 0, tmpbufsz); + /* Ensure 8-byte aligned CMD buffer */ + buf = (u8 *) ALIGN_ADDR(tmpbuf, PXA3XX_DMA_ALIGNMENT); + memcpy(buf, payload, nb); + } +#endif + /* Allocate buffer and copy payload */ + blksz = SD_BLOCK_SIZE; + buf_block_len = (nb + blksz - 1) / blksz; + sdio_claim_host(card->func); +#define MAX_WRITE_IOMEM_RETRY 2 + priv->uap_dev.cmd_sent = TRUE; + priv->uap_dev.data_sent = TRUE; + do { + /* Transfer data to card */ + ret = sdio_writesb(card->func, priv->uap_dev.ioport, buf, + buf_block_len * blksz); + if (ret < 0) { + i++; + PRINTM(ERROR, "host_to_card, write iomem (%d) failed: %d\n", i, + ret); + ret = UAP_STATUS_FAILURE; + if (i > MAX_WRITE_IOMEM_RETRY) + goto exit; + } else { + HEXDUMP("SDIO Blk Wr", payload, nb); + } + } while (ret == UAP_STATUS_FAILURE); + exit: + sdio_release_host(card->func); +#ifdef PXA3XX_DMA_ALIGN + if (tmpbuf) + kfree(tmpbuf); +#endif + if (ret == UAP_STATUS_FAILURE) { + priv->uap_dev.cmd_sent = FALSE; + priv->uap_dev.data_sent = FALSE; + } + LEAVE(); + return ret; +} + +/** + * @brief This function reads CIS information. + * + * @param priv A pointer to uap_private structure + * @param cisinfo A pointer to CIS information output buffer + * @param cislen A pointer to length of CIS info output buffer + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +#if 0 +static int +sbi_get_cis_info(uap_private * priv, void *cisinfo, int *cislen) +{ +#define CIS_PTR (0x8000) + struct sdio_mmc_card *card = priv->uap_dev.card; + unsigned int i, cis_ptr = CIS_PTR; + int ret = UAP_STATUS_FAILURE; + + ENTER(); + + if (!card || !card->func) { + PRINTM(ERROR, "sbi_get_cis_info(): card or function is NULL!\n"); + goto exit; + } +#define MAX_SDIO_CIS_INFO_LEN (256) + if (!cisinfo || (*cislen < MAX_SDIO_CIS_INFO_LEN)) { + PRINTM(WARN, "ERROR! get_cis_info: insufficient buffer passed\n"); + goto exit; + } + + *cislen = MAX_SDIO_CIS_INFO_LEN; + + sdio_claim_host(card->func); + + PRINTM(INFO, "cis_ptr=%#x\n", cis_ptr); + + /* Read the Tuple Data */ + for (i = 0; i < *cislen; i++) { + ((unsigned char *) cisinfo)[i] = + sdio_readb(card->func, cis_ptr + i, &ret); + if (ret) { + PRINTM(WARN, "get_cis_info error: ret=%d\n", ret); + ret = UAP_STATUS_FAILURE; + goto done; + } + PRINTM(INFO, "cisinfo[%d]=%#x\n", i, ((unsigned char *) cisinfo)[i]); + } + + done: + sdio_release_host(card->func); + exit: + LEAVE(); + return ret; +} +#endif +/** + * @brief This function downloads helper image to the card. + * + * @param priv A pointer to uap_private structure + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +int +sbi_prog_helper(uap_private * priv) +{ + struct sdio_mmc_card *card = priv->uap_dev.card; + u8 *helper = NULL; + int helperlen; + int ret = UAP_STATUS_SUCCESS; + void *tmphlprbuf = NULL; + int tmphlprbufsz; + u8 *hlprbuf; + int hlprblknow; + u32 tx_len; +#ifdef FW_DOWNLOAD_SPEED + u32 tv1, tv2; +#endif + + ENTER(); + + if (!card || !card->func) { + PRINTM(ERROR, "sbi_prog_helper(): card or function is NULL!\n"); + goto done; + } + + if (priv->fw_helper) { + helper = (u8 *) priv->fw_helper->data; + helperlen = priv->fw_helper->size; + } else { + PRINTM(MSG, "No helper image found! Terminating download.\n"); + LEAVE(); + return UAP_STATUS_FAILURE; + } + + PRINTM(INFO, "Downloading helper image (%d bytes), block size %d bytes\n", + helperlen, SD_BLOCK_SIZE); + +#ifdef FW_DOWNLOAD_SPEED + tv1 = get_utimeofday(); +#endif + +#ifdef PXA3XX_DMA_ALIGN + tmphlprbufsz = ALIGN_SZ(UAP_UPLD_SIZE, PXA3XX_DMA_ALIGNMENT); +#else /* !PXA3XX_DMA_ALIGN */ + tmphlprbufsz = UAP_UPLD_SIZE; +#endif /* !PXA3XX_DMA_ALIGN */ + tmphlprbuf = kmalloc(tmphlprbufsz, GFP_KERNEL); + if (!tmphlprbuf) { + PRINTM(ERROR, + "Unable to allocate buffer for helper. Terminating download\n"); + ret = UAP_STATUS_FAILURE; + goto done; + } + memset(tmphlprbuf, 0, tmphlprbufsz); +#ifdef PXA3XX_DMA_ALIGN + hlprbuf = (u8 *) ALIGN_ADDR(tmphlprbuf, PXA3XX_DMA_ALIGNMENT); +#else /* !PXA3XX_DMA_ALIGN */ + hlprbuf = (u8 *) tmphlprbuf; +#endif /* !PXA3XX_DMA_ALIGN */ + + sdio_claim_host(card->func); + + /* Perform helper data transfer */ + tx_len = (FIRMWARE_TRANSFER_NBLOCK * SD_BLOCK_SIZE) - INTF_HEADER_LEN; + hlprblknow = 0; + do { + /* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY bits */ + ret = mv_sdio_poll_card_status(priv, CARD_IO_READY | DN_LD_CARD_RDY); + if (ret < 0) { + PRINTM(FATAL, "Helper download poll status timeout @ %d\n", + hlprblknow); + goto done; + } + + /* More data? */ + if (hlprblknow >= helperlen) + break; + + /* Set blocksize to transfer - checking for last block */ + if (helperlen - hlprblknow < tx_len) + tx_len = helperlen - hlprblknow; + + /* Set length to the 4-byte header */ + *(u32 *) hlprbuf = uap_cpu_to_le32(tx_len); + + /* Copy payload to buffer */ + memcpy(&hlprbuf[INTF_HEADER_LEN], &helper[hlprblknow], tx_len); + + PRINTM(INFO, "."); + + /* Send data */ + ret = sdio_writesb(card->func, priv->uap_dev.ioport, + hlprbuf, FIRMWARE_TRANSFER_NBLOCK * SD_BLOCK_SIZE); + + if (ret < 0) { + PRINTM(FATAL, "IO error during helper download @ %d\n", hlprblknow); + goto done; + } + + hlprblknow += tx_len; + } while (TRUE); + +#ifdef FW_DOWNLOAD_SPEED + tv2 = get_utimeofday(); + PRINTM(INFO, "helper: %ld.%03ld.%03ld ", tv1 / 1000000, + (tv1 % 1000000) / 1000, tv1 % 1000); + PRINTM(INFO, " -> %ld.%03ld.%03ld ", tv2 / 1000000, (tv2 % 1000000) / 1000, + tv2 % 1000); + tv2 -= tv1; + PRINTM(INFO, " == %ld.%03ld.%03ld\n", tv2 / 1000000, (tv2 % 1000000) / 1000, + tv2 % 1000); +#endif + + /* Write last EOF data */ + PRINTM(INFO, "\nTransferring helper image EOF block\n"); + memset(hlprbuf, 0x0, SD_BLOCK_SIZE); + ret = sdio_writesb(card->func, priv->uap_dev.ioport, + hlprbuf, SD_BLOCK_SIZE); + + if (ret < 0) { + PRINTM(FATAL, "IO error in writing helper image EOF block\n"); + goto done; + } + + ret = UAP_STATUS_SUCCESS; + + done: + sdio_release_host(card->func); + if (tmphlprbuf) + kfree(tmphlprbuf); + + LEAVE(); + return ret; +} + +/** + * @brief This function downloads firmware image to the card. + * + * @param priv A pointer to uap_private structure + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +int +sbi_prog_fw_w_helper(uap_private * priv) +{ + struct sdio_mmc_card *card = priv->uap_dev.card; + u8 *firmware = NULL; + int firmwarelen; + u8 base0; + u8 base1; + int ret = UAP_STATUS_SUCCESS; + int offset; + void *tmpfwbuf = NULL; + int tmpfwbufsz; + u8 *fwbuf; + u16 len; + int txlen = 0; + int tx_blocks = 0; + int i = 0; + int tries = 0; +#ifdef FW_DOWNLOAD_SPEED + u32 tv1, tv2; +#endif + + ENTER(); + + if (!card || !card->func) { + PRINTM(ERROR, "sbi_prog_fw_w_helper(): card or function is NULL!\n"); + goto done; + } + + if (priv->firmware) { + firmware = (u8 *) priv->firmware->data; + firmwarelen = priv->firmware->size; + } else { + PRINTM(MSG, "No firmware image found! Terminating download.\n"); + LEAVE(); + return UAP_STATUS_FAILURE; + } + + PRINTM(INFO, "Downloading FW image (%d bytes)\n", firmwarelen); + +#ifdef FW_DOWNLOAD_SPEED + tv1 = get_utimeofday(); +#endif + +#ifdef PXA3XX_DMA_ALIGN + tmpfwbufsz = ALIGN_SZ(UAP_UPLD_SIZE, PXA3XX_DMA_ALIGNMENT); +#else /* PXA3XX_DMA_ALIGN */ + tmpfwbufsz = UAP_UPLD_SIZE; +#endif /* PXA3XX_DMA_ALIGN */ + tmpfwbuf = kmalloc(tmpfwbufsz, GFP_KERNEL); + if (!tmpfwbuf) { + PRINTM(ERROR, + "Unable to allocate buffer for firmware. Terminating download.\n"); + ret = UAP_STATUS_FAILURE; + goto done; + } + memset(tmpfwbuf, 0, tmpfwbufsz); +#ifdef PXA3XX_DMA_ALIGN + /* Ensure 8-byte aligned firmware buffer */ + fwbuf = (u8 *) ALIGN_ADDR(tmpfwbuf, PXA3XX_DMA_ALIGNMENT); +#else /* PXA3XX_DMA_ALIGN */ + fwbuf = (u8 *) tmpfwbuf; +#endif /* PXA3XX_DMA_ALIGN */ + + sdio_claim_host(card->func); + + /* Perform firmware data transfer */ + offset = 0; + do { + /* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY bits */ + ret = mv_sdio_poll_card_status(priv, CARD_IO_READY | DN_LD_CARD_RDY); + if (ret < 0) { + PRINTM(FATAL, "FW download with helper poll status timeout @ %d\n", + offset); + goto done; + } + + /* More data? */ + if (offset >= firmwarelen) + break; + + for (tries = 0; tries < MAX_POLL_TRIES; tries++) { + if ((ret = sbi_read_ioreg(priv, HOST_F1_RD_BASE_0, &base0)) < 0) { + PRINTM(WARN, "Dev BASE0 register read failed:" + " base0=0x%04X(%d). Terminating download.\n", base0, + base0); + ret = UAP_STATUS_FAILURE; + goto done; + } + if ((ret = sbi_read_ioreg(priv, HOST_F1_RD_BASE_1, &base1)) < 0) { + PRINTM(WARN, "Dev BASE1 register read failed:" + " base1=0x%04X(%d). Terminating download.\n", base1, + base1); + ret = UAP_STATUS_FAILURE; + goto done; + } + len = (((u16) base1) << 8) | base0; + + /* For SD8688 wait until the length is not 0, 1 or 2 before + downloading the first FW block, since BOOT code writes the + register to indicate the helper/FW download winner, the value + could be 1 or 2 (Func1 or Func2). */ + if ((len && offset) || (len > 2)) + break; + udelay(10); + } + + if (len == 0) + break; + else if (len > UAP_UPLD_SIZE) { + PRINTM(FATAL, "FW download failure @ %d, invalid length %d\n", + offset, len); + ret = UAP_STATUS_FAILURE; + goto done; + } + + txlen = len; + + if (len & BIT(0)) { + i++; + if (i > MAX_WRITE_IOMEM_RETRY) { + PRINTM(FATAL, + "FW download failure @ %d, over max retry count\n", + offset); + ret = UAP_STATUS_FAILURE; + goto done; + } + PRINTM(ERROR, "FW CRC error indicated by the helper:" + " len = 0x%04X, txlen = %d\n", len, txlen); + len &= ~BIT(0); + /* Setting this to 0 to resend from same offset */ + txlen = 0; + } else { + i = 0; + + /* Set blocksize to transfer - checking for last block */ + if (firmwarelen - offset < txlen) { + txlen = firmwarelen - offset; + } + PRINTM(INFO, "."); + + tx_blocks = (txlen + SD_BLOCK_SIZE - 1) / SD_BLOCK_SIZE; + + /* Copy payload to buffer */ + memcpy(fwbuf, &firmware[offset], txlen); + } + + /* Send data */ + ret = sdio_writesb(card->func, priv->uap_dev.ioport, + fwbuf, tx_blocks * SD_BLOCK_SIZE); + + if (ret < 0) { + PRINTM(ERROR, "FW download, write iomem (%d) failed @ %d\n", i, + offset); + if (sbi_write_ioreg(priv, CONFIGURATION_REG, 0x04) < 0) { + PRINTM(ERROR, "write ioreg failed (CFG)\n"); + } + } + + offset += txlen; + } while (TRUE); + + PRINTM(INFO, "\nFW download over, size %d bytes\n", offset); + + ret = UAP_STATUS_SUCCESS; + done: +#ifdef FW_DOWNLOAD_SPEED + tv2 = get_utimeofday(); + PRINTM(INFO, "FW: %ld.%03ld.%03ld ", tv1 / 1000000, + (tv1 % 1000000) / 1000, tv1 % 1000); + PRINTM(INFO, " -> %ld.%03ld.%03ld ", tv2 / 1000000, + (tv2 % 1000000) / 1000, tv2 % 1000); + tv2 -= tv1; + PRINTM(INFO, " == %ld.%03ld.%03ld\n", tv2 / 1000000, + (tv2 % 1000000) / 1000, tv2 % 1000); +#endif + sdio_release_host(card->func); + if (tmpfwbuf) + kfree(tmpfwbuf); + + LEAVE(); + return ret; +} + +/** + * @brief This function checks if the firmware is ready to accept + * command or not. + * + * @param priv A pointer to uap_private structure + * @param pollnum Poll number + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +int +sbi_check_fw_status(uap_private * priv, int pollnum) +{ + struct sdio_mmc_card *card = priv->uap_dev.card; + int ret = UAP_STATUS_SUCCESS; + u16 firmwarestat; + int tries; + + ENTER(); + + sdio_claim_host(card->func); + + /* Wait for firmware initialization event */ + for (tries = 0; tries < pollnum; tries++) { + if ((ret = sd_read_firmware_status(priv, &firmwarestat)) < 0) + continue; + if (firmwarestat == FIRMWARE_READY) { + ret = UAP_STATUS_SUCCESS; + break; + } else { + mdelay(10); + ret = UAP_STATUS_FAILURE; + } + } + + if (ret < 0) + goto done; + + ret = UAP_STATUS_SUCCESS; + sd_get_rx_unit(priv); + + done: + sdio_release_host(card->func); + + LEAVE(); + return ret; +} + +/** + * @brief This function set bus clock on/off + * + * @param priv A pointer to uap_private structure + * @param option TRUE--on , FALSE--off + * @return UAP_STATUS_SUCCESS + */ +#if 0 +static int +sbi_set_bus_clock(uap_private * priv, u8 option) +{ + ENTER(); + LEAVE(); + return UAP_STATUS_SUCCESS; +} +#endif + +/** + * @brief This function wakeup firmware + * + * @param priv A pointer to uap_private structure + * @return UAP_STATUS_SUCCESS or UAP_STATUS_FAILURE + */ +int +sbi_wakeup_firmware(uap_private * priv) +{ + struct sdio_mmc_card *card = priv->uap_dev.card; + int ret = UAP_STATUS_SUCCESS; + + ENTER(); + + if (!card || !card->func) { + PRINTM(ERROR, "card or function is NULL!\n"); + LEAVE(); + return UAP_STATUS_FAILURE; + } + sdio_claim_host(card->func); + sdio_writeb(card->func, HOST_POWER_UP, CONFIGURATION_REG, &ret); + sdio_release_host(card->func); + LEAVE(); + return ret; +} |