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1577 lines
40 KiB
1577 lines
40 KiB
/* |
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* Copyright (c) 2014 Redpine Signals Inc. |
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* |
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* Permission to use, copy, modify, and/or distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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* |
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*/ |
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|
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#include <linux/module.h> |
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#include "rsi_sdio.h" |
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#include "rsi_common.h" |
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#include "rsi_coex.h" |
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#include "rsi_hal.h" |
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|
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/* Default operating mode is wlan STA + BT */ |
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static u16 dev_oper_mode = DEV_OPMODE_STA_BT_DUAL; |
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module_param(dev_oper_mode, ushort, 0444); |
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MODULE_PARM_DESC(dev_oper_mode, |
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"1[Wi-Fi], 4[BT], 8[BT LE], 5[Wi-Fi STA + BT classic]\n" |
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"9[Wi-Fi STA + BT LE], 13[Wi-Fi STA + BT classic + BT LE]\n" |
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"6[AP + BT classic], 14[AP + BT classic + BT LE]"); |
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|
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/** |
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* rsi_sdio_set_cmd52_arg() - This function prepares cmd 52 read/write arg. |
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* @rw: Read/write |
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* @func: function number |
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* @raw: indicates whether to perform read after write |
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* @address: address to which to read/write |
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* @writedata: data to write |
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* |
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* Return: argument |
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*/ |
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static u32 rsi_sdio_set_cmd52_arg(bool rw, |
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u8 func, |
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u8 raw, |
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u32 address, |
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u8 writedata) |
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{ |
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return ((rw & 1) << 31) | ((func & 0x7) << 28) | |
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((raw & 1) << 27) | (1 << 26) | |
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((address & 0x1FFFF) << 9) | (1 << 8) | |
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(writedata & 0xFF); |
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} |
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|
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/** |
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* rsi_cmd52writebyte() - This function issues cmd52 byte write onto the card. |
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* @card: Pointer to the mmc_card. |
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* @address: Address to write. |
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* @byte: Data to write. |
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* |
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* Return: Write status. |
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*/ |
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static int rsi_cmd52writebyte(struct mmc_card *card, |
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u32 address, |
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u8 byte) |
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{ |
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struct mmc_command io_cmd; |
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u32 arg; |
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|
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memset(&io_cmd, 0, sizeof(io_cmd)); |
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arg = rsi_sdio_set_cmd52_arg(1, 0, 0, address, byte); |
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io_cmd.opcode = SD_IO_RW_DIRECT; |
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io_cmd.arg = arg; |
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io_cmd.flags = MMC_RSP_R5 | MMC_CMD_AC; |
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|
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return mmc_wait_for_cmd(card->host, &io_cmd, 0); |
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} |
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|
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/** |
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* rsi_cmd52readbyte() - This function issues cmd52 byte read onto the card. |
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* @card: Pointer to the mmc_card. |
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* @address: Address to read from. |
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* @byte: Variable to store read value. |
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* |
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* Return: Read status. |
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*/ |
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static int rsi_cmd52readbyte(struct mmc_card *card, |
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u32 address, |
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u8 *byte) |
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{ |
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struct mmc_command io_cmd; |
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u32 arg; |
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int err; |
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|
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memset(&io_cmd, 0, sizeof(io_cmd)); |
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arg = rsi_sdio_set_cmd52_arg(0, 0, 0, address, 0); |
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io_cmd.opcode = SD_IO_RW_DIRECT; |
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io_cmd.arg = arg; |
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io_cmd.flags = MMC_RSP_R5 | MMC_CMD_AC; |
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|
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err = mmc_wait_for_cmd(card->host, &io_cmd, 0); |
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if ((!err) && (byte)) |
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*byte = io_cmd.resp[0] & 0xFF; |
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return err; |
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} |
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|
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/** |
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* rsi_issue_sdiocommand() - This function issues sdio commands. |
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* @func: Pointer to the sdio_func structure. |
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* @opcode: Opcode value. |
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* @arg: Arguments to pass. |
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* @flags: Flags which are set. |
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* @resp: Pointer to store response. |
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* |
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* Return: err: command status as 0 or -1. |
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*/ |
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static int rsi_issue_sdiocommand(struct sdio_func *func, |
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u32 opcode, |
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u32 arg, |
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u32 flags, |
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u32 *resp) |
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{ |
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struct mmc_command cmd; |
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struct mmc_host *host; |
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int err; |
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|
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host = func->card->host; |
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|
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memset(&cmd, 0, sizeof(struct mmc_command)); |
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cmd.opcode = opcode; |
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cmd.arg = arg; |
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cmd.flags = flags; |
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err = mmc_wait_for_cmd(host, &cmd, 3); |
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|
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if ((!err) && (resp)) |
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*resp = cmd.resp[0]; |
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|
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return err; |
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} |
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|
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/** |
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* rsi_handle_interrupt() - This function is called upon the occurrence |
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* of an interrupt. |
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* @function: Pointer to the sdio_func structure. |
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* |
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* Return: None. |
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*/ |
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static void rsi_handle_interrupt(struct sdio_func *function) |
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{ |
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struct rsi_hw *adapter = sdio_get_drvdata(function); |
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struct rsi_91x_sdiodev *dev = |
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(struct rsi_91x_sdiodev *)adapter->rsi_dev; |
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|
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if (adapter->priv->fsm_state == FSM_FW_NOT_LOADED) |
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return; |
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|
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rsi_set_event(&dev->rx_thread.event); |
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} |
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|
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/** |
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* rsi_reset_card() - This function resets and re-initializes the card. |
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* @pfunction: Pointer to the sdio_func structure. |
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* |
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* Return: None. |
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*/ |
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static void rsi_reset_card(struct sdio_func *pfunction) |
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{ |
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int ret = 0; |
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int err; |
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struct mmc_card *card = pfunction->card; |
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struct mmc_host *host = card->host; |
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u8 cmd52_resp; |
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u32 clock, resp, i; |
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u16 rca; |
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|
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/* Reset 9110 chip */ |
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ret = rsi_cmd52writebyte(pfunction->card, |
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SDIO_CCCR_ABORT, |
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(1 << 3)); |
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|
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/* Card will not send any response as it is getting reset immediately |
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* Hence expect a timeout status from host controller |
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*/ |
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if (ret != -ETIMEDOUT) |
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rsi_dbg(ERR_ZONE, "%s: Reset failed : %d\n", __func__, ret); |
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|
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/* Wait for few milli seconds to get rid of residue charges if any */ |
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msleep(20); |
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|
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/* Initialize the SDIO card */ |
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host->ios.chip_select = MMC_CS_DONTCARE; |
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host->ios.bus_mode = MMC_BUSMODE_OPENDRAIN; |
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host->ios.power_mode = MMC_POWER_UP; |
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host->ios.bus_width = MMC_BUS_WIDTH_1; |
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host->ios.timing = MMC_TIMING_LEGACY; |
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host->ops->set_ios(host, &host->ios); |
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|
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/* |
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* This delay should be sufficient to allow the power supply |
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* to reach the minimum voltage. |
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*/ |
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msleep(20); |
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|
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host->ios.clock = host->f_min; |
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host->ios.power_mode = MMC_POWER_ON; |
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host->ops->set_ios(host, &host->ios); |
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|
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/* |
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* This delay must be at least 74 clock sizes, or 1 ms, or the |
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* time required to reach a stable voltage. |
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*/ |
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msleep(20); |
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|
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/* Issue CMD0. Goto idle state */ |
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host->ios.chip_select = MMC_CS_HIGH; |
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host->ops->set_ios(host, &host->ios); |
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msleep(20); |
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err = rsi_issue_sdiocommand(pfunction, |
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MMC_GO_IDLE_STATE, |
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0, |
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(MMC_RSP_NONE | MMC_CMD_BC), |
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NULL); |
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host->ios.chip_select = MMC_CS_DONTCARE; |
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host->ops->set_ios(host, &host->ios); |
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msleep(20); |
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host->use_spi_crc = 0; |
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|
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if (err) |
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rsi_dbg(ERR_ZONE, "%s: CMD0 failed : %d\n", __func__, err); |
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|
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/* Issue CMD5, arg = 0 */ |
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err = rsi_issue_sdiocommand(pfunction, SD_IO_SEND_OP_COND, 0, |
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(MMC_RSP_R4 | MMC_CMD_BCR), &resp); |
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if (err) |
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rsi_dbg(ERR_ZONE, "%s: CMD5 failed : %d\n", |
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__func__, err); |
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card->ocr = resp; |
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/* Issue CMD5, arg = ocr. Wait till card is ready */ |
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for (i = 0; i < 100; i++) { |
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err = rsi_issue_sdiocommand(pfunction, SD_IO_SEND_OP_COND, |
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card->ocr, |
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(MMC_RSP_R4 | MMC_CMD_BCR), &resp); |
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if (err) { |
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rsi_dbg(ERR_ZONE, "%s: CMD5 failed : %d\n", |
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__func__, err); |
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break; |
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} |
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|
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if (resp & MMC_CARD_BUSY) |
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break; |
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msleep(20); |
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} |
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|
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if ((i == 100) || (err)) { |
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rsi_dbg(ERR_ZONE, "%s: card in not ready : %d %d\n", |
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__func__, i, err); |
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return; |
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} |
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|
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/* Issue CMD3, get RCA */ |
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err = rsi_issue_sdiocommand(pfunction, |
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SD_SEND_RELATIVE_ADDR, |
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0, |
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(MMC_RSP_R6 | MMC_CMD_BCR), |
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&resp); |
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if (err) { |
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rsi_dbg(ERR_ZONE, "%s: CMD3 failed : %d\n", __func__, err); |
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return; |
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} |
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rca = resp >> 16; |
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host->ios.bus_mode = MMC_BUSMODE_PUSHPULL; |
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host->ops->set_ios(host, &host->ios); |
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|
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/* Issue CMD7, select card */ |
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err = rsi_issue_sdiocommand(pfunction, |
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MMC_SELECT_CARD, |
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(rca << 16), |
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(MMC_RSP_R1 | MMC_CMD_AC), |
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NULL); |
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if (err) { |
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rsi_dbg(ERR_ZONE, "%s: CMD7 failed : %d\n", __func__, err); |
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return; |
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} |
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|
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/* Enable high speed */ |
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if (card->host->caps & MMC_CAP_SD_HIGHSPEED) { |
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rsi_dbg(ERR_ZONE, "%s: Set high speed mode\n", __func__); |
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err = rsi_cmd52readbyte(card, SDIO_CCCR_SPEED, &cmd52_resp); |
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if (err) { |
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rsi_dbg(ERR_ZONE, "%s: CCCR speed reg read failed: %d\n", |
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__func__, err); |
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} else { |
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err = rsi_cmd52writebyte(card, |
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SDIO_CCCR_SPEED, |
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(cmd52_resp | SDIO_SPEED_EHS)); |
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if (err) { |
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rsi_dbg(ERR_ZONE, |
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"%s: CCR speed regwrite failed %d\n", |
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__func__, err); |
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return; |
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} |
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host->ios.timing = MMC_TIMING_SD_HS; |
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host->ops->set_ios(host, &host->ios); |
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} |
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} |
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|
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/* Set clock */ |
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if (mmc_card_hs(card)) |
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clock = 50000000; |
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else |
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clock = card->cis.max_dtr; |
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|
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if (clock > host->f_max) |
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clock = host->f_max; |
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|
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host->ios.clock = clock; |
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host->ops->set_ios(host, &host->ios); |
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|
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if (card->host->caps & MMC_CAP_4_BIT_DATA) { |
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/* CMD52: Set bus width & disable card detect resistor */ |
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err = rsi_cmd52writebyte(card, |
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SDIO_CCCR_IF, |
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(SDIO_BUS_CD_DISABLE | |
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SDIO_BUS_WIDTH_4BIT)); |
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if (err) { |
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rsi_dbg(ERR_ZONE, "%s: Set bus mode failed : %d\n", |
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__func__, err); |
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return; |
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} |
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host->ios.bus_width = MMC_BUS_WIDTH_4; |
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host->ops->set_ios(host, &host->ios); |
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} |
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} |
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|
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/** |
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* rsi_setclock() - This function sets the clock frequency. |
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* @adapter: Pointer to the adapter structure. |
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* @freq: Clock frequency. |
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* |
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* Return: None. |
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*/ |
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static void rsi_setclock(struct rsi_hw *adapter, u32 freq) |
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{ |
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struct rsi_91x_sdiodev *dev = |
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(struct rsi_91x_sdiodev *)adapter->rsi_dev; |
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struct mmc_host *host = dev->pfunction->card->host; |
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u32 clock; |
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|
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clock = freq * 1000; |
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if (clock > host->f_max) |
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clock = host->f_max; |
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host->ios.clock = clock; |
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host->ops->set_ios(host, &host->ios); |
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} |
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|
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/** |
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* rsi_setblocklength() - This function sets the host block length. |
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* @adapter: Pointer to the adapter structure. |
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* @length: Block length to be set. |
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* |
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* Return: status: 0 on success, -1 on failure. |
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*/ |
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static int rsi_setblocklength(struct rsi_hw *adapter, u32 length) |
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{ |
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struct rsi_91x_sdiodev *dev = |
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(struct rsi_91x_sdiodev *)adapter->rsi_dev; |
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int status; |
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rsi_dbg(INIT_ZONE, "%s: Setting the block length\n", __func__); |
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|
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status = sdio_set_block_size(dev->pfunction, length); |
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dev->pfunction->max_blksize = 256; |
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adapter->block_size = dev->pfunction->max_blksize; |
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|
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rsi_dbg(INFO_ZONE, |
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"%s: Operational blk length is %d\n", __func__, length); |
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return status; |
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} |
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|
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/** |
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* rsi_setupcard() - This function queries and sets the card's features. |
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* @adapter: Pointer to the adapter structure. |
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* |
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* Return: status: 0 on success, -1 on failure. |
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*/ |
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static int rsi_setupcard(struct rsi_hw *adapter) |
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{ |
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struct rsi_91x_sdiodev *dev = |
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(struct rsi_91x_sdiodev *)adapter->rsi_dev; |
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int status = 0; |
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|
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rsi_setclock(adapter, 50000); |
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|
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dev->tx_blk_size = 256; |
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status = rsi_setblocklength(adapter, dev->tx_blk_size); |
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if (status) |
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rsi_dbg(ERR_ZONE, |
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"%s: Unable to set block length\n", __func__); |
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return status; |
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} |
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|
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/** |
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* rsi_sdio_read_register() - This function reads one byte of information |
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* from a register. |
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* @adapter: Pointer to the adapter structure. |
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* @addr: Address of the register. |
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* @data: Pointer to the data that stores the data read. |
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* |
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* Return: 0 on success, -1 on failure. |
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*/ |
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int rsi_sdio_read_register(struct rsi_hw *adapter, |
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u32 addr, |
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u8 *data) |
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{ |
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struct rsi_91x_sdiodev *dev = |
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(struct rsi_91x_sdiodev *)adapter->rsi_dev; |
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u8 fun_num = 0; |
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int status; |
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|
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if (likely(dev->sdio_irq_task != current)) |
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sdio_claim_host(dev->pfunction); |
|
|
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if (fun_num == 0) |
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*data = sdio_f0_readb(dev->pfunction, addr, &status); |
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else |
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*data = sdio_readb(dev->pfunction, addr, &status); |
|
|
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if (likely(dev->sdio_irq_task != current)) |
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sdio_release_host(dev->pfunction); |
|
|
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return status; |
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} |
|
|
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/** |
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* rsi_sdio_write_register() - This function writes one byte of information |
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* into a register. |
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* @adapter: Pointer to the adapter structure. |
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* @function: Function Number. |
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* @addr: Address of the register. |
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* @data: Pointer to the data tha has to be written. |
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* |
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* Return: 0 on success, -1 on failure. |
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*/ |
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int rsi_sdio_write_register(struct rsi_hw *adapter, |
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u8 function, |
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u32 addr, |
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u8 *data) |
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{ |
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struct rsi_91x_sdiodev *dev = |
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(struct rsi_91x_sdiodev *)adapter->rsi_dev; |
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int status = 0; |
|
|
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if (likely(dev->sdio_irq_task != current)) |
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sdio_claim_host(dev->pfunction); |
|
|
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if (function == 0) |
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sdio_f0_writeb(dev->pfunction, *data, addr, &status); |
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else |
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sdio_writeb(dev->pfunction, *data, addr, &status); |
|
|
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if (likely(dev->sdio_irq_task != current)) |
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sdio_release_host(dev->pfunction); |
|
|
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return status; |
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} |
|
|
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/** |
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* rsi_sdio_ack_intr() - This function acks the interrupt received. |
|
* @adapter: Pointer to the adapter structure. |
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* @int_bit: Interrupt bit to write into register. |
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* |
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* Return: None. |
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*/ |
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void rsi_sdio_ack_intr(struct rsi_hw *adapter, u8 int_bit) |
|
{ |
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int status; |
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status = rsi_sdio_write_register(adapter, |
|
1, |
|
(SDIO_FUN1_INTR_CLR_REG | |
|
RSI_SD_REQUEST_MASTER), |
|
&int_bit); |
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if (status) |
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rsi_dbg(ERR_ZONE, "%s: unable to send ack\n", __func__); |
|
} |
|
|
|
|
|
|
|
/** |
|
* rsi_sdio_read_register_multiple() - This function read multiple bytes of |
|
* information from the SD card. |
|
* @adapter: Pointer to the adapter structure. |
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* @addr: Address of the register. |
|
* @count: Number of multiple bytes to be read. |
|
* @data: Pointer to the read data. |
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* |
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* Return: 0 on success, -1 on failure. |
|
*/ |
|
static int rsi_sdio_read_register_multiple(struct rsi_hw *adapter, |
|
u32 addr, |
|
u8 *data, |
|
u16 count) |
|
{ |
|
struct rsi_91x_sdiodev *dev = |
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(struct rsi_91x_sdiodev *)adapter->rsi_dev; |
|
u32 status; |
|
|
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if (likely(dev->sdio_irq_task != current)) |
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sdio_claim_host(dev->pfunction); |
|
|
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status = sdio_readsb(dev->pfunction, data, addr, count); |
|
|
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if (likely(dev->sdio_irq_task != current)) |
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sdio_release_host(dev->pfunction); |
|
|
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if (status != 0) |
|
rsi_dbg(ERR_ZONE, "%s: Synch Cmd53 read failed\n", __func__); |
|
return status; |
|
} |
|
|
|
/** |
|
* rsi_sdio_write_register_multiple() - This function writes multiple bytes of |
|
* information to the SD card. |
|
* @adapter: Pointer to the adapter structure. |
|
* @addr: Address of the register. |
|
* @data: Pointer to the data that has to be written. |
|
* @count: Number of multiple bytes to be written. |
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* |
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* Return: 0 on success, -1 on failure. |
|
*/ |
|
int rsi_sdio_write_register_multiple(struct rsi_hw *adapter, |
|
u32 addr, |
|
u8 *data, |
|
u16 count) |
|
{ |
|
struct rsi_91x_sdiodev *dev = |
|
(struct rsi_91x_sdiodev *)adapter->rsi_dev; |
|
int status; |
|
|
|
if (dev->write_fail > 1) { |
|
rsi_dbg(ERR_ZONE, "%s: Stopping card writes\n", __func__); |
|
return 0; |
|
} else if (dev->write_fail == 1) { |
|
/** |
|
* Assuming it is a CRC failure, we want to allow another |
|
* card write |
|
*/ |
|
rsi_dbg(ERR_ZONE, "%s: Continue card writes\n", __func__); |
|
dev->write_fail++; |
|
} |
|
|
|
if (likely(dev->sdio_irq_task != current)) |
|
sdio_claim_host(dev->pfunction); |
|
|
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status = sdio_writesb(dev->pfunction, addr, data, count); |
|
|
|
if (likely(dev->sdio_irq_task != current)) |
|
sdio_release_host(dev->pfunction); |
|
|
|
if (status) { |
|
rsi_dbg(ERR_ZONE, "%s: Synch Cmd53 write failed %d\n", |
|
__func__, status); |
|
dev->write_fail = 2; |
|
} else { |
|
memcpy(dev->prev_desc, data, FRAME_DESC_SZ); |
|
} |
|
return status; |
|
} |
|
|
|
static int rsi_sdio_load_data_master_write(struct rsi_hw *adapter, |
|
u32 base_address, |
|
u32 instructions_sz, |
|
u16 block_size, |
|
u8 *ta_firmware) |
|
{ |
|
u32 num_blocks, offset, i; |
|
u16 msb_address, lsb_address; |
|
u8 *temp_buf; |
|
int status; |
|
|
|
num_blocks = instructions_sz / block_size; |
|
msb_address = base_address >> 16; |
|
|
|
rsi_dbg(INFO_ZONE, "ins_size: %d, num_blocks: %d\n", |
|
instructions_sz, num_blocks); |
|
|
|
temp_buf = kmalloc(block_size, GFP_KERNEL); |
|
if (!temp_buf) |
|
return -ENOMEM; |
|
|
|
/* Loading DM ms word in the sdio slave */ |
|
status = rsi_sdio_master_access_msword(adapter, msb_address); |
|
if (status < 0) { |
|
rsi_dbg(ERR_ZONE, "%s: Unable to set ms word reg\n", __func__); |
|
goto out_free; |
|
} |
|
|
|
for (offset = 0, i = 0; i < num_blocks; i++, offset += block_size) { |
|
memcpy(temp_buf, ta_firmware + offset, block_size); |
|
lsb_address = (u16)base_address; |
|
status = rsi_sdio_write_register_multiple |
|
(adapter, |
|
lsb_address | RSI_SD_REQUEST_MASTER, |
|
temp_buf, block_size); |
|
if (status < 0) { |
|
rsi_dbg(ERR_ZONE, "%s: failed to write\n", __func__); |
|
goto out_free; |
|
} |
|
rsi_dbg(INFO_ZONE, "%s: loading block: %d\n", __func__, i); |
|
base_address += block_size; |
|
|
|
if ((base_address >> 16) != msb_address) { |
|
msb_address += 1; |
|
|
|
/* Loading DM ms word in the sdio slave */ |
|
status = rsi_sdio_master_access_msword(adapter, |
|
msb_address); |
|
if (status < 0) { |
|
rsi_dbg(ERR_ZONE, |
|
"%s: Unable to set ms word reg\n", |
|
__func__); |
|
goto out_free; |
|
} |
|
} |
|
} |
|
|
|
if (instructions_sz % block_size) { |
|
memset(temp_buf, 0, block_size); |
|
memcpy(temp_buf, ta_firmware + offset, |
|
instructions_sz % block_size); |
|
lsb_address = (u16)base_address; |
|
status = rsi_sdio_write_register_multiple |
|
(adapter, |
|
lsb_address | RSI_SD_REQUEST_MASTER, |
|
temp_buf, |
|
instructions_sz % block_size); |
|
if (status < 0) |
|
goto out_free; |
|
rsi_dbg(INFO_ZONE, |
|
"Written Last Block in Address 0x%x Successfully\n", |
|
offset | RSI_SD_REQUEST_MASTER); |
|
} |
|
|
|
status = 0; |
|
out_free: |
|
kfree(temp_buf); |
|
return status; |
|
} |
|
|
|
#define FLASH_SIZE_ADDR 0x04000016 |
|
static int rsi_sdio_master_reg_read(struct rsi_hw *adapter, u32 addr, |
|
u32 *read_buf, u16 size) |
|
{ |
|
u32 addr_on_bus, *data; |
|
u16 ms_addr; |
|
int status; |
|
|
|
data = kzalloc(RSI_MASTER_REG_BUF_SIZE, GFP_KERNEL); |
|
if (!data) |
|
return -ENOMEM; |
|
|
|
ms_addr = (addr >> 16); |
|
status = rsi_sdio_master_access_msword(adapter, ms_addr); |
|
if (status < 0) { |
|
rsi_dbg(ERR_ZONE, |
|
"%s: Unable to set ms word to common reg\n", |
|
__func__); |
|
goto err; |
|
} |
|
addr &= 0xFFFF; |
|
|
|
addr_on_bus = (addr & 0xFF000000); |
|
if ((addr_on_bus == (FLASH_SIZE_ADDR & 0xFF000000)) || |
|
(addr_on_bus == 0x0)) |
|
addr_on_bus = (addr & ~(0x3)); |
|
else |
|
addr_on_bus = addr; |
|
|
|
/* Bring TA out of reset */ |
|
status = rsi_sdio_read_register_multiple |
|
(adapter, |
|
(addr_on_bus | RSI_SD_REQUEST_MASTER), |
|
(u8 *)data, 4); |
|
if (status < 0) { |
|
rsi_dbg(ERR_ZONE, "%s: AHB register read failed\n", __func__); |
|
goto err; |
|
} |
|
if (size == 2) { |
|
if ((addr & 0x3) == 0) |
|
*read_buf = *data; |
|
else |
|
*read_buf = (*data >> 16); |
|
*read_buf = (*read_buf & 0xFFFF); |
|
} else if (size == 1) { |
|
if ((addr & 0x3) == 0) |
|
*read_buf = *data; |
|
else if ((addr & 0x3) == 1) |
|
*read_buf = (*data >> 8); |
|
else if ((addr & 0x3) == 2) |
|
*read_buf = (*data >> 16); |
|
else |
|
*read_buf = (*data >> 24); |
|
*read_buf = (*read_buf & 0xFF); |
|
} else { |
|
*read_buf = *data; |
|
} |
|
|
|
err: |
|
kfree(data); |
|
return status; |
|
} |
|
|
|
static int rsi_sdio_master_reg_write(struct rsi_hw *adapter, |
|
unsigned long addr, |
|
unsigned long data, u16 size) |
|
{ |
|
unsigned long *data_aligned; |
|
int status; |
|
|
|
data_aligned = kzalloc(RSI_MASTER_REG_BUF_SIZE, GFP_KERNEL); |
|
if (!data_aligned) |
|
return -ENOMEM; |
|
|
|
if (size == 2) { |
|
*data_aligned = ((data << 16) | (data & 0xFFFF)); |
|
} else if (size == 1) { |
|
u32 temp_data = data & 0xFF; |
|
|
|
*data_aligned = ((temp_data << 24) | (temp_data << 16) | |
|
(temp_data << 8) | temp_data); |
|
} else { |
|
*data_aligned = data; |
|
} |
|
size = 4; |
|
|
|
status = rsi_sdio_master_access_msword(adapter, (addr >> 16)); |
|
if (status < 0) { |
|
rsi_dbg(ERR_ZONE, |
|
"%s: Unable to set ms word to common reg\n", |
|
__func__); |
|
kfree(data_aligned); |
|
return -EIO; |
|
} |
|
addr = addr & 0xFFFF; |
|
|
|
/* Bring TA out of reset */ |
|
status = rsi_sdio_write_register_multiple |
|
(adapter, |
|
(addr | RSI_SD_REQUEST_MASTER), |
|
(u8 *)data_aligned, size); |
|
if (status < 0) |
|
rsi_dbg(ERR_ZONE, |
|
"%s: Unable to do AHB reg write\n", __func__); |
|
|
|
kfree(data_aligned); |
|
return status; |
|
} |
|
|
|
/** |
|
* rsi_sdio_host_intf_write_pkt() - This function writes the packet to device. |
|
* @adapter: Pointer to the adapter structure. |
|
* @pkt: Pointer to the data to be written on to the device. |
|
* @len: length of the data to be written on to the device. |
|
* |
|
* Return: 0 on success, -1 on failure. |
|
*/ |
|
static int rsi_sdio_host_intf_write_pkt(struct rsi_hw *adapter, |
|
u8 *pkt, |
|
u32 len) |
|
{ |
|
struct rsi_91x_sdiodev *dev = |
|
(struct rsi_91x_sdiodev *)adapter->rsi_dev; |
|
u32 block_size = dev->tx_blk_size; |
|
u32 num_blocks, address, length; |
|
u32 queueno; |
|
int status; |
|
|
|
queueno = ((pkt[1] >> 4) & 0xf); |
|
if (queueno == RSI_BT_MGMT_Q || queueno == RSI_BT_DATA_Q) |
|
queueno = RSI_BT_Q; |
|
|
|
num_blocks = len / block_size; |
|
|
|
if (len % block_size) |
|
num_blocks++; |
|
|
|
address = (num_blocks * block_size | (queueno << 12)); |
|
length = num_blocks * block_size; |
|
|
|
status = rsi_sdio_write_register_multiple(adapter, |
|
address, |
|
(u8 *)pkt, |
|
length); |
|
if (status) |
|
rsi_dbg(ERR_ZONE, "%s: Unable to write onto the card: %d\n", |
|
__func__, status); |
|
rsi_dbg(DATA_TX_ZONE, "%s: Successfully written onto card\n", __func__); |
|
return status; |
|
} |
|
|
|
/** |
|
* rsi_sdio_host_intf_read_pkt() - This function reads the packet |
|
* from the device. |
|
* @adapter: Pointer to the adapter data structure. |
|
* @pkt: Pointer to the packet data to be read from the the device. |
|
* @length: Length of the data to be read from the device. |
|
* |
|
* Return: 0 on success, -1 on failure. |
|
*/ |
|
int rsi_sdio_host_intf_read_pkt(struct rsi_hw *adapter, |
|
u8 *pkt, |
|
u32 length) |
|
{ |
|
int status = -EINVAL; |
|
|
|
if (!length) { |
|
rsi_dbg(ERR_ZONE, "%s: Pkt size is zero\n", __func__); |
|
return status; |
|
} |
|
|
|
status = rsi_sdio_read_register_multiple(adapter, |
|
length, |
|
(u8 *)pkt, |
|
length); /*num of bytes*/ |
|
|
|
if (status) |
|
rsi_dbg(ERR_ZONE, "%s: Failed to read frame: %d\n", __func__, |
|
status); |
|
return status; |
|
} |
|
|
|
/** |
|
* rsi_init_sdio_interface() - This function does init specific to SDIO. |
|
* |
|
* @adapter: Pointer to the adapter data structure. |
|
* @pfunction: Pointer to the sdio_func structure. |
|
* |
|
* Return: 0 on success, -1 on failure. |
|
*/ |
|
static int rsi_init_sdio_interface(struct rsi_hw *adapter, |
|
struct sdio_func *pfunction) |
|
{ |
|
struct rsi_91x_sdiodev *rsi_91x_dev; |
|
int status; |
|
|
|
rsi_91x_dev = kzalloc(sizeof(*rsi_91x_dev), GFP_KERNEL); |
|
if (!rsi_91x_dev) |
|
return -ENOMEM; |
|
|
|
adapter->rsi_dev = rsi_91x_dev; |
|
|
|
sdio_claim_host(pfunction); |
|
|
|
pfunction->enable_timeout = 100; |
|
status = sdio_enable_func(pfunction); |
|
if (status) { |
|
rsi_dbg(ERR_ZONE, "%s: Failed to enable interface\n", __func__); |
|
sdio_release_host(pfunction); |
|
return status; |
|
} |
|
|
|
rsi_dbg(INIT_ZONE, "%s: Enabled the interface\n", __func__); |
|
|
|
rsi_91x_dev->pfunction = pfunction; |
|
adapter->device = &pfunction->dev; |
|
|
|
sdio_set_drvdata(pfunction, adapter); |
|
|
|
status = rsi_setupcard(adapter); |
|
if (status) { |
|
rsi_dbg(ERR_ZONE, "%s: Failed to setup card\n", __func__); |
|
goto fail; |
|
} |
|
|
|
rsi_dbg(INIT_ZONE, "%s: Setup card successfully\n", __func__); |
|
|
|
status = rsi_init_sdio_slave_regs(adapter); |
|
if (status) { |
|
rsi_dbg(ERR_ZONE, "%s: Failed to init slave regs\n", __func__); |
|
goto fail; |
|
} |
|
sdio_release_host(pfunction); |
|
|
|
adapter->determine_event_timeout = rsi_sdio_determine_event_timeout; |
|
adapter->check_hw_queue_status = rsi_sdio_check_buffer_status; |
|
|
|
#ifdef CONFIG_RSI_DEBUGFS |
|
adapter->num_debugfs_entries = MAX_DEBUGFS_ENTRIES; |
|
#endif |
|
return 0; |
|
fail: |
|
sdio_disable_func(pfunction); |
|
sdio_release_host(pfunction); |
|
return status; |
|
} |
|
|
|
static int rsi_sdio_reinit_device(struct rsi_hw *adapter) |
|
{ |
|
struct rsi_91x_sdiodev *sdev = adapter->rsi_dev; |
|
struct sdio_func *pfunction = sdev->pfunction; |
|
int ii; |
|
|
|
for (ii = 0; ii < NUM_SOFT_QUEUES; ii++) |
|
skb_queue_purge(&adapter->priv->tx_queue[ii]); |
|
|
|
/* Initialize device again */ |
|
sdio_claim_host(pfunction); |
|
|
|
sdio_release_irq(pfunction); |
|
rsi_reset_card(pfunction); |
|
|
|
sdio_enable_func(pfunction); |
|
rsi_setupcard(adapter); |
|
rsi_init_sdio_slave_regs(adapter); |
|
sdio_claim_irq(pfunction, rsi_handle_interrupt); |
|
rsi_hal_device_init(adapter); |
|
|
|
sdio_release_host(pfunction); |
|
|
|
return 0; |
|
} |
|
|
|
static int rsi_sdio_ta_reset(struct rsi_hw *adapter) |
|
{ |
|
int status; |
|
u32 addr; |
|
u8 *data; |
|
|
|
data = kzalloc(RSI_9116_REG_SIZE, GFP_KERNEL); |
|
if (!data) |
|
return -ENOMEM; |
|
|
|
status = rsi_sdio_master_access_msword(adapter, TA_BASE_ADDR); |
|
if (status < 0) { |
|
rsi_dbg(ERR_ZONE, |
|
"Unable to set ms word to common reg\n"); |
|
goto err; |
|
} |
|
|
|
rsi_dbg(INIT_ZONE, "%s: Bring TA out of reset\n", __func__); |
|
put_unaligned_le32(TA_HOLD_THREAD_VALUE, data); |
|
addr = TA_HOLD_THREAD_REG | RSI_SD_REQUEST_MASTER; |
|
status = rsi_sdio_write_register_multiple(adapter, addr, |
|
(u8 *)data, |
|
RSI_9116_REG_SIZE); |
|
if (status < 0) { |
|
rsi_dbg(ERR_ZONE, "Unable to hold TA threads\n"); |
|
goto err; |
|
} |
|
|
|
put_unaligned_le32(TA_SOFT_RST_CLR, data); |
|
addr = TA_SOFT_RESET_REG | RSI_SD_REQUEST_MASTER; |
|
status = rsi_sdio_write_register_multiple(adapter, addr, |
|
(u8 *)data, |
|
RSI_9116_REG_SIZE); |
|
if (status < 0) { |
|
rsi_dbg(ERR_ZONE, "Unable to get TA out of reset\n"); |
|
goto err; |
|
} |
|
|
|
put_unaligned_le32(TA_PC_ZERO, data); |
|
addr = TA_TH0_PC_REG | RSI_SD_REQUEST_MASTER; |
|
status = rsi_sdio_write_register_multiple(adapter, addr, |
|
(u8 *)data, |
|
RSI_9116_REG_SIZE); |
|
if (status < 0) { |
|
rsi_dbg(ERR_ZONE, "Unable to Reset TA PC value\n"); |
|
status = -EINVAL; |
|
goto err; |
|
} |
|
|
|
put_unaligned_le32(TA_RELEASE_THREAD_VALUE, data); |
|
addr = TA_RELEASE_THREAD_REG | RSI_SD_REQUEST_MASTER; |
|
status = rsi_sdio_write_register_multiple(adapter, addr, |
|
(u8 *)data, |
|
RSI_9116_REG_SIZE); |
|
if (status < 0) { |
|
rsi_dbg(ERR_ZONE, "Unable to release TA threads\n"); |
|
goto err; |
|
} |
|
|
|
status = rsi_sdio_master_access_msword(adapter, MISC_CFG_BASE_ADDR); |
|
if (status < 0) { |
|
rsi_dbg(ERR_ZONE, "Unable to set ms word to common reg\n"); |
|
goto err; |
|
} |
|
rsi_dbg(INIT_ZONE, "***** TA Reset done *****\n"); |
|
|
|
err: |
|
kfree(data); |
|
return status; |
|
} |
|
|
|
static struct rsi_host_intf_ops sdio_host_intf_ops = { |
|
.write_pkt = rsi_sdio_host_intf_write_pkt, |
|
.read_pkt = rsi_sdio_host_intf_read_pkt, |
|
.master_access_msword = rsi_sdio_master_access_msword, |
|
.read_reg_multiple = rsi_sdio_read_register_multiple, |
|
.write_reg_multiple = rsi_sdio_write_register_multiple, |
|
.master_reg_read = rsi_sdio_master_reg_read, |
|
.master_reg_write = rsi_sdio_master_reg_write, |
|
.load_data_master_write = rsi_sdio_load_data_master_write, |
|
.reinit_device = rsi_sdio_reinit_device, |
|
.ta_reset = rsi_sdio_ta_reset, |
|
}; |
|
|
|
/** |
|
* rsi_probe() - This function is called by kernel when the driver provided |
|
* Vendor and device IDs are matched. All the initialization |
|
* work is done here. |
|
* @pfunction: Pointer to the sdio_func structure. |
|
* @id: Pointer to sdio_device_id structure. |
|
* |
|
* Return: 0 on success, 1 on failure. |
|
*/ |
|
static int rsi_probe(struct sdio_func *pfunction, |
|
const struct sdio_device_id *id) |
|
{ |
|
struct rsi_hw *adapter; |
|
struct rsi_91x_sdiodev *sdev; |
|
int status = -EINVAL; |
|
|
|
rsi_dbg(INIT_ZONE, "%s: Init function called\n", __func__); |
|
|
|
adapter = rsi_91x_init(dev_oper_mode); |
|
if (!adapter) { |
|
rsi_dbg(ERR_ZONE, "%s: Failed to init os intf ops\n", |
|
__func__); |
|
return -EINVAL; |
|
} |
|
adapter->rsi_host_intf = RSI_HOST_INTF_SDIO; |
|
adapter->host_intf_ops = &sdio_host_intf_ops; |
|
|
|
if (rsi_init_sdio_interface(adapter, pfunction)) { |
|
rsi_dbg(ERR_ZONE, "%s: Failed to init sdio interface\n", |
|
__func__); |
|
status = -EIO; |
|
goto fail_free_adapter; |
|
} |
|
|
|
if (pfunction->device == SDIO_DEVICE_ID_RSI_9113) { |
|
rsi_dbg(ERR_ZONE, "%s: 9113 module detected\n", __func__); |
|
adapter->device_model = RSI_DEV_9113; |
|
} else if (pfunction->device == SDIO_DEVICE_ID_RSI_9116) { |
|
rsi_dbg(ERR_ZONE, "%s: 9116 module detected\n", __func__); |
|
adapter->device_model = RSI_DEV_9116; |
|
} else { |
|
rsi_dbg(ERR_ZONE, |
|
"%s: Unsupported RSI device id 0x%x\n", __func__, |
|
pfunction->device); |
|
goto fail_free_adapter; |
|
} |
|
|
|
sdev = (struct rsi_91x_sdiodev *)adapter->rsi_dev; |
|
rsi_init_event(&sdev->rx_thread.event); |
|
status = rsi_create_kthread(adapter->priv, &sdev->rx_thread, |
|
rsi_sdio_rx_thread, "SDIO-RX-Thread"); |
|
if (status) { |
|
rsi_dbg(ERR_ZONE, "%s: Unable to init rx thrd\n", __func__); |
|
goto fail_kill_thread; |
|
} |
|
|
|
sdio_claim_host(pfunction); |
|
if (sdio_claim_irq(pfunction, rsi_handle_interrupt)) { |
|
rsi_dbg(ERR_ZONE, "%s: Failed to request IRQ\n", __func__); |
|
sdio_release_host(pfunction); |
|
status = -EIO; |
|
goto fail_claim_irq; |
|
} |
|
sdio_release_host(pfunction); |
|
rsi_dbg(INIT_ZONE, "%s: Registered Interrupt handler\n", __func__); |
|
|
|
if (rsi_hal_device_init(adapter)) { |
|
rsi_dbg(ERR_ZONE, "%s: Failed in device init\n", __func__); |
|
status = -EINVAL; |
|
goto fail_dev_init; |
|
} |
|
rsi_dbg(INFO_ZONE, "===> RSI Device Init Done <===\n"); |
|
|
|
if (rsi_sdio_master_access_msword(adapter, MISC_CFG_BASE_ADDR)) { |
|
rsi_dbg(ERR_ZONE, "%s: Unable to set ms word reg\n", __func__); |
|
status = -EIO; |
|
goto fail_dev_init; |
|
} |
|
|
|
adapter->priv->hibernate_resume = false; |
|
adapter->priv->reinit_hw = false; |
|
return 0; |
|
|
|
fail_dev_init: |
|
sdio_claim_host(pfunction); |
|
sdio_release_irq(pfunction); |
|
sdio_release_host(pfunction); |
|
fail_claim_irq: |
|
rsi_kill_thread(&sdev->rx_thread); |
|
fail_kill_thread: |
|
sdio_claim_host(pfunction); |
|
sdio_disable_func(pfunction); |
|
sdio_release_host(pfunction); |
|
fail_free_adapter: |
|
rsi_91x_deinit(adapter); |
|
rsi_dbg(ERR_ZONE, "%s: Failed in probe...Exiting\n", __func__); |
|
return status; |
|
} |
|
|
|
static void ulp_read_write(struct rsi_hw *adapter, u16 addr, u32 data, |
|
u16 len_in_bits) |
|
{ |
|
rsi_sdio_master_reg_write(adapter, RSI_GSPI_DATA_REG1, |
|
((addr << 6) | ((data >> 16) & 0xffff)), 2); |
|
rsi_sdio_master_reg_write(adapter, RSI_GSPI_DATA_REG0, |
|
(data & 0xffff), 2); |
|
rsi_sdio_master_reg_write(adapter, RSI_GSPI_CTRL_REG0, |
|
RSI_GSPI_CTRL_REG0_VALUE, 2); |
|
rsi_sdio_master_reg_write(adapter, RSI_GSPI_CTRL_REG1, |
|
((len_in_bits - 1) | RSI_GSPI_TRIG), 2); |
|
msleep(20); |
|
} |
|
|
|
/*This function resets and re-initializes the chip.*/ |
|
static void rsi_reset_chip(struct rsi_hw *adapter) |
|
{ |
|
u8 *data; |
|
u8 sdio_interrupt_status = 0; |
|
u8 request = 1; |
|
int ret; |
|
|
|
data = kzalloc(sizeof(u32), GFP_KERNEL); |
|
if (!data) |
|
return; |
|
|
|
rsi_dbg(INFO_ZONE, "Writing disable to wakeup register\n"); |
|
ret = rsi_sdio_write_register(adapter, 0, SDIO_WAKEUP_REG, &request); |
|
if (ret < 0) { |
|
rsi_dbg(ERR_ZONE, |
|
"%s: Failed to write SDIO wakeup register\n", __func__); |
|
goto err; |
|
} |
|
msleep(20); |
|
ret = rsi_sdio_read_register(adapter, RSI_FN1_INT_REGISTER, |
|
&sdio_interrupt_status); |
|
if (ret < 0) { |
|
rsi_dbg(ERR_ZONE, "%s: Failed to Read Intr Status Register\n", |
|
__func__); |
|
goto err; |
|
} |
|
rsi_dbg(INFO_ZONE, "%s: Intr Status Register value = %d\n", |
|
__func__, sdio_interrupt_status); |
|
|
|
/* Put Thread-Arch processor on hold */ |
|
if (rsi_sdio_master_access_msword(adapter, TA_BASE_ADDR)) { |
|
rsi_dbg(ERR_ZONE, |
|
"%s: Unable to set ms word to common reg\n", |
|
__func__); |
|
goto err; |
|
} |
|
|
|
put_unaligned_le32(TA_HOLD_THREAD_VALUE, data); |
|
if (rsi_sdio_write_register_multiple(adapter, TA_HOLD_THREAD_REG | |
|
RSI_SD_REQUEST_MASTER, |
|
data, 4)) { |
|
rsi_dbg(ERR_ZONE, |
|
"%s: Unable to hold Thread-Arch processor threads\n", |
|
__func__); |
|
goto err; |
|
} |
|
|
|
/* This msleep will ensure Thread-Arch processor to go to hold |
|
* and any pending dma transfers to rf spi in device to finish. |
|
*/ |
|
msleep(100); |
|
if (adapter->device_model != RSI_DEV_9116) { |
|
ulp_read_write(adapter, RSI_ULP_RESET_REG, RSI_ULP_WRITE_0, 32); |
|
ulp_read_write(adapter, |
|
RSI_WATCH_DOG_TIMER_1, RSI_ULP_WRITE_2, 32); |
|
ulp_read_write(adapter, RSI_WATCH_DOG_TIMER_2, RSI_ULP_WRITE_0, |
|
32); |
|
ulp_read_write(adapter, RSI_WATCH_DOG_DELAY_TIMER_1, |
|
RSI_ULP_WRITE_50, 32); |
|
ulp_read_write(adapter, RSI_WATCH_DOG_DELAY_TIMER_2, |
|
RSI_ULP_WRITE_0, 32); |
|
ulp_read_write(adapter, RSI_WATCH_DOG_TIMER_ENABLE, |
|
RSI_ULP_TIMER_ENABLE, 32); |
|
} else { |
|
if ((rsi_sdio_master_reg_write(adapter, |
|
NWP_WWD_INTERRUPT_TIMER, |
|
NWP_WWD_INT_TIMER_CLKS, |
|
RSI_9116_REG_SIZE)) < 0) { |
|
rsi_dbg(ERR_ZONE, "Failed to write to intr timer\n"); |
|
} |
|
if ((rsi_sdio_master_reg_write(adapter, |
|
NWP_WWD_SYSTEM_RESET_TIMER, |
|
NWP_WWD_SYS_RESET_TIMER_CLKS, |
|
RSI_9116_REG_SIZE)) < 0) { |
|
rsi_dbg(ERR_ZONE, |
|
"Failed to write to system reset timer\n"); |
|
} |
|
if ((rsi_sdio_master_reg_write(adapter, |
|
NWP_WWD_MODE_AND_RSTART, |
|
NWP_WWD_TIMER_DISABLE, |
|
RSI_9116_REG_SIZE)) < 0) { |
|
rsi_dbg(ERR_ZONE, |
|
"Failed to write to mode and restart\n"); |
|
} |
|
rsi_dbg(ERR_ZONE, "***** Watch Dog Reset Successful *****\n"); |
|
} |
|
/* This msleep will be sufficient for the ulp |
|
* read write operations to complete for chip reset. |
|
*/ |
|
msleep(500); |
|
err: |
|
kfree(data); |
|
return; |
|
} |
|
|
|
/** |
|
* rsi_disconnect() - This function performs the reverse of the probe function. |
|
* @pfunction: Pointer to the sdio_func structure. |
|
* |
|
* Return: void. |
|
*/ |
|
static void rsi_disconnect(struct sdio_func *pfunction) |
|
{ |
|
struct rsi_hw *adapter = sdio_get_drvdata(pfunction); |
|
struct rsi_91x_sdiodev *dev; |
|
|
|
if (!adapter) |
|
return; |
|
|
|
dev = (struct rsi_91x_sdiodev *)adapter->rsi_dev; |
|
|
|
rsi_kill_thread(&dev->rx_thread); |
|
sdio_claim_host(pfunction); |
|
sdio_release_irq(pfunction); |
|
sdio_release_host(pfunction); |
|
mdelay(10); |
|
|
|
rsi_mac80211_detach(adapter); |
|
mdelay(10); |
|
|
|
if (IS_ENABLED(CONFIG_RSI_COEX) && adapter->priv->coex_mode > 1 && |
|
adapter->priv->bt_adapter) { |
|
rsi_bt_ops.detach(adapter->priv->bt_adapter); |
|
adapter->priv->bt_adapter = NULL; |
|
} |
|
|
|
/* Reset Chip */ |
|
rsi_reset_chip(adapter); |
|
|
|
/* Resetting to take care of the case, where-in driver is re-loaded */ |
|
sdio_claim_host(pfunction); |
|
rsi_reset_card(pfunction); |
|
sdio_disable_func(pfunction); |
|
sdio_release_host(pfunction); |
|
dev->write_fail = 2; |
|
rsi_91x_deinit(adapter); |
|
rsi_dbg(ERR_ZONE, "##### RSI SDIO device disconnected #####\n"); |
|
|
|
} |
|
|
|
#ifdef CONFIG_PM |
|
static int rsi_set_sdio_pm_caps(struct rsi_hw *adapter) |
|
{ |
|
struct rsi_91x_sdiodev *dev = |
|
(struct rsi_91x_sdiodev *)adapter->rsi_dev; |
|
struct sdio_func *func = dev->pfunction; |
|
int ret; |
|
|
|
ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); |
|
if (ret) |
|
rsi_dbg(ERR_ZONE, "Set sdio keep pwr flag failed: %d\n", ret); |
|
|
|
return ret; |
|
} |
|
|
|
static int rsi_sdio_disable_interrupts(struct sdio_func *pfunc) |
|
{ |
|
struct rsi_hw *adapter = sdio_get_drvdata(pfunc); |
|
u8 isr_status = 0, data = 0; |
|
int ret; |
|
unsigned long t1; |
|
|
|
rsi_dbg(INFO_ZONE, "Waiting for interrupts to be cleared.."); |
|
t1 = jiffies; |
|
do { |
|
rsi_sdio_read_register(adapter, RSI_FN1_INT_REGISTER, |
|
&isr_status); |
|
rsi_dbg(INFO_ZONE, "."); |
|
} while ((isr_status) && (jiffies_to_msecs(jiffies - t1) < 20)); |
|
rsi_dbg(INFO_ZONE, "Interrupts cleared\n"); |
|
|
|
sdio_claim_host(pfunc); |
|
ret = rsi_cmd52readbyte(pfunc->card, RSI_INT_ENABLE_REGISTER, &data); |
|
if (ret < 0) { |
|
rsi_dbg(ERR_ZONE, |
|
"%s: Failed to read int enable register\n", |
|
__func__); |
|
goto done; |
|
} |
|
|
|
data &= RSI_INT_ENABLE_MASK; |
|
ret = rsi_cmd52writebyte(pfunc->card, RSI_INT_ENABLE_REGISTER, data); |
|
if (ret < 0) { |
|
rsi_dbg(ERR_ZONE, |
|
"%s: Failed to write to int enable register\n", |
|
__func__); |
|
goto done; |
|
} |
|
ret = rsi_cmd52readbyte(pfunc->card, RSI_INT_ENABLE_REGISTER, &data); |
|
if (ret < 0) { |
|
rsi_dbg(ERR_ZONE, |
|
"%s: Failed to read int enable register\n", |
|
__func__); |
|
goto done; |
|
} |
|
rsi_dbg(INFO_ZONE, "int enable reg content = %x\n", data); |
|
|
|
done: |
|
sdio_release_host(pfunc); |
|
return ret; |
|
} |
|
|
|
static int rsi_sdio_enable_interrupts(struct sdio_func *pfunc) |
|
{ |
|
u8 data; |
|
int ret; |
|
struct rsi_hw *adapter = sdio_get_drvdata(pfunc); |
|
struct rsi_common *common = adapter->priv; |
|
|
|
sdio_claim_host(pfunc); |
|
ret = rsi_cmd52readbyte(pfunc->card, RSI_INT_ENABLE_REGISTER, &data); |
|
if (ret < 0) { |
|
rsi_dbg(ERR_ZONE, |
|
"%s: Failed to read int enable register\n", __func__); |
|
goto done; |
|
} |
|
|
|
data |= ~RSI_INT_ENABLE_MASK & 0xff; |
|
|
|
ret = rsi_cmd52writebyte(pfunc->card, RSI_INT_ENABLE_REGISTER, data); |
|
if (ret < 0) { |
|
rsi_dbg(ERR_ZONE, |
|
"%s: Failed to write to int enable register\n", |
|
__func__); |
|
goto done; |
|
} |
|
|
|
if ((common->wow_flags & RSI_WOW_ENABLED) && |
|
(common->wow_flags & RSI_WOW_NO_CONNECTION)) |
|
rsi_dbg(ERR_ZONE, |
|
"##### Device can not wake up through WLAN\n"); |
|
|
|
ret = rsi_cmd52readbyte(pfunc->card, RSI_INT_ENABLE_REGISTER, &data); |
|
if (ret < 0) { |
|
rsi_dbg(ERR_ZONE, |
|
"%s: Failed to read int enable register\n", __func__); |
|
goto done; |
|
} |
|
rsi_dbg(INFO_ZONE, "int enable reg content = %x\n", data); |
|
|
|
done: |
|
sdio_release_host(pfunc); |
|
return ret; |
|
} |
|
|
|
static int rsi_suspend(struct device *dev) |
|
{ |
|
int ret; |
|
struct sdio_func *pfunction = dev_to_sdio_func(dev); |
|
struct rsi_hw *adapter = sdio_get_drvdata(pfunction); |
|
struct rsi_common *common; |
|
|
|
if (!adapter) { |
|
rsi_dbg(ERR_ZONE, "Device is not ready\n"); |
|
return -ENODEV; |
|
} |
|
common = adapter->priv; |
|
rsi_sdio_disable_interrupts(pfunction); |
|
|
|
ret = rsi_set_sdio_pm_caps(adapter); |
|
if (ret) |
|
rsi_dbg(INFO_ZONE, |
|
"Setting power management caps failed\n"); |
|
common->fsm_state = FSM_CARD_NOT_READY; |
|
|
|
return 0; |
|
} |
|
|
|
static int rsi_resume(struct device *dev) |
|
{ |
|
struct sdio_func *pfunction = dev_to_sdio_func(dev); |
|
struct rsi_hw *adapter = sdio_get_drvdata(pfunction); |
|
struct rsi_common *common = adapter->priv; |
|
|
|
common->fsm_state = FSM_MAC_INIT_DONE; |
|
rsi_sdio_enable_interrupts(pfunction); |
|
|
|
return 0; |
|
} |
|
|
|
static int rsi_freeze(struct device *dev) |
|
{ |
|
int ret; |
|
struct sdio_func *pfunction = dev_to_sdio_func(dev); |
|
struct rsi_hw *adapter = sdio_get_drvdata(pfunction); |
|
struct rsi_common *common; |
|
struct rsi_91x_sdiodev *sdev; |
|
|
|
rsi_dbg(INFO_ZONE, "SDIO Bus freeze ===>\n"); |
|
|
|
if (!adapter) { |
|
rsi_dbg(ERR_ZONE, "Device is not ready\n"); |
|
return -ENODEV; |
|
} |
|
common = adapter->priv; |
|
sdev = (struct rsi_91x_sdiodev *)adapter->rsi_dev; |
|
|
|
if ((common->wow_flags & RSI_WOW_ENABLED) && |
|
(common->wow_flags & RSI_WOW_NO_CONNECTION)) |
|
rsi_dbg(ERR_ZONE, |
|
"##### Device can not wake up through WLAN\n"); |
|
|
|
if (IS_ENABLED(CONFIG_RSI_COEX) && common->coex_mode > 1 && |
|
common->bt_adapter) { |
|
rsi_bt_ops.detach(common->bt_adapter); |
|
common->bt_adapter = NULL; |
|
} |
|
|
|
ret = rsi_sdio_disable_interrupts(pfunction); |
|
|
|
if (sdev->write_fail) |
|
rsi_dbg(INFO_ZONE, "###### Device is not ready #######\n"); |
|
|
|
ret = rsi_set_sdio_pm_caps(adapter); |
|
if (ret) |
|
rsi_dbg(INFO_ZONE, "Setting power management caps failed\n"); |
|
|
|
rsi_dbg(INFO_ZONE, "***** RSI module freezed *****\n"); |
|
|
|
return 0; |
|
} |
|
|
|
static int rsi_thaw(struct device *dev) |
|
{ |
|
struct sdio_func *pfunction = dev_to_sdio_func(dev); |
|
struct rsi_hw *adapter = sdio_get_drvdata(pfunction); |
|
struct rsi_common *common = adapter->priv; |
|
|
|
rsi_dbg(ERR_ZONE, "SDIO Bus thaw =====>\n"); |
|
|
|
common->hibernate_resume = true; |
|
common->fsm_state = FSM_CARD_NOT_READY; |
|
common->iface_down = true; |
|
|
|
rsi_sdio_enable_interrupts(pfunction); |
|
|
|
rsi_dbg(INFO_ZONE, "***** RSI module thaw done *****\n"); |
|
|
|
return 0; |
|
} |
|
|
|
static void rsi_shutdown(struct device *dev) |
|
{ |
|
struct sdio_func *pfunction = dev_to_sdio_func(dev); |
|
struct rsi_hw *adapter = sdio_get_drvdata(pfunction); |
|
struct rsi_91x_sdiodev *sdev = |
|
(struct rsi_91x_sdiodev *)adapter->rsi_dev; |
|
struct ieee80211_hw *hw = adapter->hw; |
|
|
|
rsi_dbg(ERR_ZONE, "SDIO Bus shutdown =====>\n"); |
|
|
|
if (hw) { |
|
struct cfg80211_wowlan *wowlan = hw->wiphy->wowlan_config; |
|
|
|
if (rsi_config_wowlan(adapter, wowlan)) |
|
rsi_dbg(ERR_ZONE, "Failed to configure WoWLAN\n"); |
|
} |
|
|
|
if (IS_ENABLED(CONFIG_RSI_COEX) && adapter->priv->coex_mode > 1 && |
|
adapter->priv->bt_adapter) { |
|
rsi_bt_ops.detach(adapter->priv->bt_adapter); |
|
adapter->priv->bt_adapter = NULL; |
|
} |
|
|
|
rsi_sdio_disable_interrupts(sdev->pfunction); |
|
|
|
if (sdev->write_fail) |
|
rsi_dbg(INFO_ZONE, "###### Device is not ready #######\n"); |
|
|
|
if (rsi_set_sdio_pm_caps(adapter)) |
|
rsi_dbg(INFO_ZONE, "Setting power management caps failed\n"); |
|
|
|
rsi_dbg(INFO_ZONE, "***** RSI module shut down *****\n"); |
|
} |
|
|
|
static int rsi_restore(struct device *dev) |
|
{ |
|
struct sdio_func *pfunction = dev_to_sdio_func(dev); |
|
struct rsi_hw *adapter = sdio_get_drvdata(pfunction); |
|
struct rsi_common *common = adapter->priv; |
|
|
|
rsi_dbg(INFO_ZONE, "SDIO Bus restore ======>\n"); |
|
common->hibernate_resume = true; |
|
common->fsm_state = FSM_FW_NOT_LOADED; |
|
common->iface_down = true; |
|
|
|
adapter->sc_nvifs = 0; |
|
adapter->ps_state = PS_NONE; |
|
|
|
common->wow_flags = 0; |
|
common->iface_down = false; |
|
|
|
rsi_dbg(INFO_ZONE, "RSI module restored\n"); |
|
|
|
return 0; |
|
} |
|
static const struct dev_pm_ops rsi_pm_ops = { |
|
.suspend = rsi_suspend, |
|
.resume_noirq = rsi_resume, |
|
.freeze = rsi_freeze, |
|
.thaw = rsi_thaw, |
|
.restore = rsi_restore, |
|
}; |
|
#endif |
|
|
|
static const struct sdio_device_id rsi_dev_table[] = { |
|
{ SDIO_DEVICE(SDIO_VENDOR_ID_RSI, SDIO_DEVICE_ID_RSI_9113) }, |
|
{ SDIO_DEVICE(SDIO_VENDOR_ID_RSI, SDIO_DEVICE_ID_RSI_9116) }, |
|
{ /* Blank */}, |
|
}; |
|
|
|
static struct sdio_driver rsi_driver = { |
|
.name = "RSI-SDIO WLAN", |
|
.probe = rsi_probe, |
|
.remove = rsi_disconnect, |
|
.id_table = rsi_dev_table, |
|
#ifdef CONFIG_PM |
|
.drv = { |
|
.pm = &rsi_pm_ops, |
|
.shutdown = rsi_shutdown, |
|
} |
|
#endif |
|
}; |
|
|
|
/** |
|
* rsi_module_init() - This function registers the sdio module. |
|
* @void: Void. |
|
* |
|
* Return: 0 on success. |
|
*/ |
|
static int rsi_module_init(void) |
|
{ |
|
int ret; |
|
|
|
ret = sdio_register_driver(&rsi_driver); |
|
rsi_dbg(INIT_ZONE, "%s: Registering driver\n", __func__); |
|
return ret; |
|
} |
|
|
|
/** |
|
* rsi_module_exit() - This function unregisters the sdio module. |
|
* @void: Void. |
|
* |
|
* Return: None. |
|
*/ |
|
static void rsi_module_exit(void) |
|
{ |
|
sdio_unregister_driver(&rsi_driver); |
|
rsi_dbg(INFO_ZONE, "%s: Unregistering driver\n", __func__); |
|
} |
|
|
|
module_init(rsi_module_init); |
|
module_exit(rsi_module_exit); |
|
|
|
MODULE_AUTHOR("Redpine Signals Inc"); |
|
MODULE_DESCRIPTION("Common SDIO layer for RSI drivers"); |
|
MODULE_DEVICE_TABLE(sdio, rsi_dev_table); |
|
MODULE_FIRMWARE(FIRMWARE_RSI9113); |
|
MODULE_VERSION("0.1"); |
|
MODULE_LICENSE("Dual BSD/GPL");
|
|
|