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linux/drivers/net/wireless/rsi/rsi_91x_sdio.c
Marek Vasut 31f97cf9f0 rsi: Fix module dev_oper_mode parameter description 
The module parameters are missing dev_oper_mode 12, BT classic alone,
add it. Moreover, the parameters encode newlines, which ends up being
printed malformed e.g. by modinfo, so fix that too.

However, the module parameter string is duplicated in both USB and SDIO
modules and the dev_oper_mode mode enumeration in those module parameters
is a duplicate of macros used by the driver. Furthermore, the enumeration
is confusing.

So, deduplicate the module parameter string and use __stringify() to
encode the correct mode enumeration values into the module parameter
string. Finally, replace 'Wi-Fi' with 'Wi-Fi alone' and 'BT' with
'BT classic alone' to clarify what those modes really mean.

Fixes: 898b255339 ("rsi: add module parameter operating mode")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Cc: Angus Ainslie <angus@akkea.ca>
Cc: David S. Miller <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Karun Eagalapati <karun256@gmail.com>
Cc: Martin Fuzzey <martin.fuzzey@flowbird.group>
Cc: Martin Kepplinger <martink@posteo.de>
Cc: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Cc: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Cc: Siva Rebbagondla <siva8118@gmail.com>
Cc: netdev@vger.kernel.org
Cc: <stable@vger.kernel.org> # 4.17+
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210916144245.10181-1-marex@denx.de
2021-09-21 18:03:48 +03:00

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/*
* Copyright (c) 2014 Redpine Signals Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include <linux/module.h>
#include "rsi_sdio.h"
#include "rsi_common.h"
#include "rsi_coex.h"
#include "rsi_hal.h"
/* Default operating mode is wlan STA + BT */
static u16 dev_oper_mode = DEV_OPMODE_STA_BT_DUAL;
module_param(dev_oper_mode, ushort, 0444);
MODULE_PARM_DESC(dev_oper_mode, DEV_OPMODE_PARAM_DESC);
/**
* rsi_sdio_set_cmd52_arg() - This function prepares cmd 52 read/write arg.
* @rw: Read/write
* @func: function number
* @raw: indicates whether to perform read after write
* @address: address to which to read/write
* @writedata: data to write
*
* Return: argument
*/
static u32 rsi_sdio_set_cmd52_arg(bool rw,
u8 func,
u8 raw,
u32 address,
u8 writedata)
{
return ((rw & 1) << 31) | ((func & 0x7) << 28) |
((raw & 1) << 27) | (1 << 26) |
((address & 0x1FFFF) << 9) | (1 << 8) |
(writedata & 0xFF);
}
/**
* rsi_cmd52writebyte() - This function issues cmd52 byte write onto the card.
* @card: Pointer to the mmc_card.
* @address: Address to write.
* @byte: Data to write.
*
* Return: Write status.
*/
static int rsi_cmd52writebyte(struct mmc_card *card,
u32 address,
u8 byte)
{
struct mmc_command io_cmd;
u32 arg;
memset(&io_cmd, 0, sizeof(io_cmd));
arg = rsi_sdio_set_cmd52_arg(1, 0, 0, address, byte);
io_cmd.opcode = SD_IO_RW_DIRECT;
io_cmd.arg = arg;
io_cmd.flags = MMC_RSP_R5 | MMC_CMD_AC;
return mmc_wait_for_cmd(card->host, &io_cmd, 0);
}
/**
* rsi_cmd52readbyte() - This function issues cmd52 byte read onto the card.
* @card: Pointer to the mmc_card.
* @address: Address to read from.
* @byte: Variable to store read value.
*
* Return: Read status.
*/
static int rsi_cmd52readbyte(struct mmc_card *card,
u32 address,
u8 *byte)
{
struct mmc_command io_cmd;
u32 arg;
int err;
memset(&io_cmd, 0, sizeof(io_cmd));
arg = rsi_sdio_set_cmd52_arg(0, 0, 0, address, 0);
io_cmd.opcode = SD_IO_RW_DIRECT;
io_cmd.arg = arg;
io_cmd.flags = MMC_RSP_R5 | MMC_CMD_AC;
err = mmc_wait_for_cmd(card->host, &io_cmd, 0);
if ((!err) && (byte))
*byte = io_cmd.resp[0] & 0xFF;
return err;
}
/**
* rsi_issue_sdiocommand() - This function issues sdio commands.
* @func: Pointer to the sdio_func structure.
* @opcode: Opcode value.
* @arg: Arguments to pass.
* @flags: Flags which are set.
* @resp: Pointer to store response.
*
* Return: err: command status as 0 or -1.
*/
static int rsi_issue_sdiocommand(struct sdio_func *func,
u32 opcode,
u32 arg,
u32 flags,
u32 *resp)
{
struct mmc_command cmd;
struct mmc_host *host;
int err;
host = func->card->host;
memset(&cmd, 0, sizeof(struct mmc_command));
cmd.opcode = opcode;
cmd.arg = arg;
cmd.flags = flags;
err = mmc_wait_for_cmd(host, &cmd, 3);
if ((!err) && (resp))
*resp = cmd.resp[0];
return err;
}
/**
* rsi_handle_interrupt() - This function is called upon the occurrence
* of an interrupt.
* @function: Pointer to the sdio_func structure.
*
* Return: None.
*/
static void rsi_handle_interrupt(struct sdio_func *function)
{
struct rsi_hw *adapter = sdio_get_drvdata(function);
struct rsi_91x_sdiodev *dev =
(struct rsi_91x_sdiodev *)adapter->rsi_dev;
if (adapter->priv->fsm_state == FSM_FW_NOT_LOADED)
return;
rsi_set_event(&dev->rx_thread.event);
}
/**
* rsi_reset_card() - This function resets and re-initializes the card.
* @pfunction: Pointer to the sdio_func structure.
*
* Return: None.
*/
static void rsi_reset_card(struct sdio_func *pfunction)
{
int ret = 0;
int err;
struct mmc_card *card = pfunction->card;
struct mmc_host *host = card->host;
u8 cmd52_resp;
u32 clock, resp, i;
u16 rca;
/* Reset 9110 chip */
ret = rsi_cmd52writebyte(pfunction->card,
SDIO_CCCR_ABORT,
(1 << 3));
/* Card will not send any response as it is getting reset immediately
* Hence expect a timeout status from host controller
*/
if (ret != -ETIMEDOUT)
rsi_dbg(ERR_ZONE, "%s: Reset failed : %d\n", __func__, ret);
/* Wait for few milli seconds to get rid of residue charges if any */
msleep(20);
/* Initialize the SDIO card */
host->ios.chip_select = MMC_CS_DONTCARE;
host->ios.bus_mode = MMC_BUSMODE_OPENDRAIN;
host->ios.power_mode = MMC_POWER_UP;
host->ios.bus_width = MMC_BUS_WIDTH_1;
host->ios.timing = MMC_TIMING_LEGACY;
host->ops->set_ios(host, &host->ios);
/*
* This delay should be sufficient to allow the power supply
* to reach the minimum voltage.
*/
msleep(20);
host->ios.clock = host->f_min;
host->ios.power_mode = MMC_POWER_ON;
host->ops->set_ios(host, &host->ios);
/*
* This delay must be at least 74 clock sizes, or 1 ms, or the
* time required to reach a stable voltage.
*/
msleep(20);
/* Issue CMD0. Goto idle state */
host->ios.chip_select = MMC_CS_HIGH;
host->ops->set_ios(host, &host->ios);
msleep(20);
err = rsi_issue_sdiocommand(pfunction,
MMC_GO_IDLE_STATE,
0,
(MMC_RSP_NONE | MMC_CMD_BC),
NULL);
host->ios.chip_select = MMC_CS_DONTCARE;
host->ops->set_ios(host, &host->ios);
msleep(20);
host->use_spi_crc = 0;
if (err)
rsi_dbg(ERR_ZONE, "%s: CMD0 failed : %d\n", __func__, err);
/* Issue CMD5, arg = 0 */
err = rsi_issue_sdiocommand(pfunction, SD_IO_SEND_OP_COND, 0,
(MMC_RSP_R4 | MMC_CMD_BCR), &resp);
if (err)
rsi_dbg(ERR_ZONE, "%s: CMD5 failed : %d\n",
__func__, err);
card->ocr = resp;
/* Issue CMD5, arg = ocr. Wait till card is ready */
for (i = 0; i < 100; i++) {
err = rsi_issue_sdiocommand(pfunction, SD_IO_SEND_OP_COND,
card->ocr,
(MMC_RSP_R4 | MMC_CMD_BCR), &resp);
if (err) {
rsi_dbg(ERR_ZONE, "%s: CMD5 failed : %d\n",
__func__, err);
break;
}
if (resp & MMC_CARD_BUSY)
break;
msleep(20);
}
if ((i == 100) || (err)) {
rsi_dbg(ERR_ZONE, "%s: card in not ready : %d %d\n",
__func__, i, err);
return;
}
/* Issue CMD3, get RCA */
err = rsi_issue_sdiocommand(pfunction,
SD_SEND_RELATIVE_ADDR,
0,
(MMC_RSP_R6 | MMC_CMD_BCR),
&resp);
if (err) {
rsi_dbg(ERR_ZONE, "%s: CMD3 failed : %d\n", __func__, err);
return;
}
rca = resp >> 16;
host->ios.bus_mode = MMC_BUSMODE_PUSHPULL;
host->ops->set_ios(host, &host->ios);
/* Issue CMD7, select card */
err = rsi_issue_sdiocommand(pfunction,
MMC_SELECT_CARD,
(rca << 16),
(MMC_RSP_R1 | MMC_CMD_AC),
NULL);
if (err) {
rsi_dbg(ERR_ZONE, "%s: CMD7 failed : %d\n", __func__, err);
return;
}
/* Enable high speed */
if (card->host->caps & MMC_CAP_SD_HIGHSPEED) {
rsi_dbg(ERR_ZONE, "%s: Set high speed mode\n", __func__);
err = rsi_cmd52readbyte(card, SDIO_CCCR_SPEED, &cmd52_resp);
if (err) {
rsi_dbg(ERR_ZONE, "%s: CCCR speed reg read failed: %d\n",
__func__, err);
} else {
err = rsi_cmd52writebyte(card,
SDIO_CCCR_SPEED,
(cmd52_resp | SDIO_SPEED_EHS));
if (err) {
rsi_dbg(ERR_ZONE,
"%s: CCR speed regwrite failed %d\n",
__func__, err);
return;
}
host->ios.timing = MMC_TIMING_SD_HS;
host->ops->set_ios(host, &host->ios);
}
}
/* Set clock */
if (mmc_card_hs(card))
clock = 50000000;
else
clock = card->cis.max_dtr;
if (clock > host->f_max)
clock = host->f_max;
host->ios.clock = clock;
host->ops->set_ios(host, &host->ios);
if (card->host->caps & MMC_CAP_4_BIT_DATA) {
/* CMD52: Set bus width & disable card detect resistor */
err = rsi_cmd52writebyte(card,
SDIO_CCCR_IF,
(SDIO_BUS_CD_DISABLE |
SDIO_BUS_WIDTH_4BIT));
if (err) {
rsi_dbg(ERR_ZONE, "%s: Set bus mode failed : %d\n",
__func__, err);
return;
}
host->ios.bus_width = MMC_BUS_WIDTH_4;
host->ops->set_ios(host, &host->ios);
}
}
/**
* rsi_setclock() - This function sets the clock frequency.
* @adapter: Pointer to the adapter structure.
* @freq: Clock frequency.
*
* Return: None.
*/
static void rsi_setclock(struct rsi_hw *adapter, u32 freq)
{
struct rsi_91x_sdiodev *dev =
(struct rsi_91x_sdiodev *)adapter->rsi_dev;
struct mmc_host *host = dev->pfunction->card->host;
u32 clock;
clock = freq * 1000;
if (clock > host->f_max)
clock = host->f_max;
host->ios.clock = clock;
host->ops->set_ios(host, &host->ios);
}
/**
* rsi_setblocklength() - This function sets the host block length.
* @adapter: Pointer to the adapter structure.
* @length: Block length to be set.
*
* Return: status: 0 on success, -1 on failure.
*/
static int rsi_setblocklength(struct rsi_hw *adapter, u32 length)
{
struct rsi_91x_sdiodev *dev =
(struct rsi_91x_sdiodev *)adapter->rsi_dev;
int status;
rsi_dbg(INIT_ZONE, "%s: Setting the block length\n", __func__);
status = sdio_set_block_size(dev->pfunction, length);
dev->pfunction->max_blksize = 256;
adapter->block_size = dev->pfunction->max_blksize;
rsi_dbg(INFO_ZONE,
"%s: Operational blk length is %d\n", __func__, length);
return status;
}
/**
* rsi_setupcard() - This function queries and sets the card's features.
* @adapter: Pointer to the adapter structure.
*
* Return: status: 0 on success, -1 on failure.
*/
static int rsi_setupcard(struct rsi_hw *adapter)
{
struct rsi_91x_sdiodev *dev =
(struct rsi_91x_sdiodev *)adapter->rsi_dev;
int status = 0;
rsi_setclock(adapter, 50000);
dev->tx_blk_size = 256;
status = rsi_setblocklength(adapter, dev->tx_blk_size);
if (status)
rsi_dbg(ERR_ZONE,
"%s: Unable to set block length\n", __func__);
return status;
}
/**
* rsi_sdio_read_register() - This function reads one byte of information
* from a register.
* @adapter: Pointer to the adapter structure.
* @addr: Address of the register.
* @data: Pointer to the data that stores the data read.
*
* Return: 0 on success, -1 on failure.
*/
int rsi_sdio_read_register(struct rsi_hw *adapter,
u32 addr,
u8 *data)
{
struct rsi_91x_sdiodev *dev =
(struct rsi_91x_sdiodev *)adapter->rsi_dev;
u8 fun_num = 0;
int status;
if (likely(dev->sdio_irq_task != current))
sdio_claim_host(dev->pfunction);
if (fun_num == 0)
*data = sdio_f0_readb(dev->pfunction, addr, &status);
else
*data = sdio_readb(dev->pfunction, addr, &status);
if (likely(dev->sdio_irq_task != current))
sdio_release_host(dev->pfunction);
return status;
}
/**
* rsi_sdio_write_register() - This function writes one byte of information
* into a register.
* @adapter: Pointer to the adapter structure.
* @function: Function Number.
* @addr: Address of the register.
* @data: Pointer to the data tha has to be written.
*
* Return: 0 on success, -1 on failure.
*/
int rsi_sdio_write_register(struct rsi_hw *adapter,
u8 function,
u32 addr,
u8 *data)
{
struct rsi_91x_sdiodev *dev =
(struct rsi_91x_sdiodev *)adapter->rsi_dev;
int status = 0;
if (likely(dev->sdio_irq_task != current))
sdio_claim_host(dev->pfunction);
if (function == 0)
sdio_f0_writeb(dev->pfunction, *data, addr, &status);
else
sdio_writeb(dev->pfunction, *data, addr, &status);
if (likely(dev->sdio_irq_task != current))
sdio_release_host(dev->pfunction);
return status;
}
/**
* rsi_sdio_ack_intr() - This function acks the interrupt received.
* @adapter: Pointer to the adapter structure.
* @int_bit: Interrupt bit to write into register.
*
* Return: None.
*/
void rsi_sdio_ack_intr(struct rsi_hw *adapter, u8 int_bit)
{
int status;
status = rsi_sdio_write_register(adapter,
1,
(SDIO_FUN1_INTR_CLR_REG |
RSI_SD_REQUEST_MASTER),
&int_bit);
if (status)
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.
* @addr: Address of the register.
* @count: Number of multiple bytes to be read.
* @data: Pointer to the read data.
*
* 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 =
(struct rsi_91x_sdiodev *)adapter->rsi_dev;
u32 status;
if (likely(dev->sdio_irq_task != current))
sdio_claim_host(dev->pfunction);
status = sdio_readsb(dev->pfunction, data, addr, count);
if (likely(dev->sdio_irq_task != current))
sdio_release_host(dev->pfunction);
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.
*
* 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);
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");
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