2513 lines
64 KiB
C
2513 lines
64 KiB
C
/*
|
|
* Marvell Wireless LAN device driver: SDIO specific handling
|
|
*
|
|
* Copyright (C) 2011-2014, Marvell International Ltd.
|
|
*
|
|
* This software file (the "File") is distributed by Marvell International
|
|
* Ltd. under the terms of the GNU General Public License Version 2, June 1991
|
|
* (the "License"). You may use, redistribute and/or modify this File in
|
|
* accordance with the terms and conditions of the License, a copy of which
|
|
* is available by writing to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
|
|
* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
|
|
*
|
|
* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
|
|
* this warranty disclaimer.
|
|
*/
|
|
|
|
#include <linux/firmware.h>
|
|
|
|
#include "decl.h"
|
|
#include "ioctl.h"
|
|
#include "util.h"
|
|
#include "fw.h"
|
|
#include "main.h"
|
|
#include "wmm.h"
|
|
#include "11n.h"
|
|
#include "sdio.h"
|
|
|
|
|
|
#define SDIO_VERSION "1.0"
|
|
|
|
/* The mwifiex_sdio_remove() callback function is called when
|
|
* user removes this module from kernel space or ejects
|
|
* the card from the slot. The driver handles these 2 cases
|
|
* differently.
|
|
* If the user is removing the module, the few commands (FUNC_SHUTDOWN,
|
|
* HS_CANCEL etc.) are sent to the firmware.
|
|
* If the card is removed, there is no need to send these command.
|
|
*
|
|
* The variable 'user_rmmod' is used to distinguish these two
|
|
* scenarios. This flag is initialized as FALSE in case the card
|
|
* is removed, and will be set to TRUE for module removal when
|
|
* module_exit function is called.
|
|
*/
|
|
static u8 user_rmmod;
|
|
|
|
static struct mwifiex_if_ops sdio_ops;
|
|
static unsigned long iface_work_flags;
|
|
|
|
static struct semaphore add_remove_card_sem;
|
|
|
|
static struct memory_type_mapping mem_type_mapping_tbl[] = {
|
|
{"ITCM", NULL, 0, 0xF0},
|
|
{"DTCM", NULL, 0, 0xF1},
|
|
{"SQRAM", NULL, 0, 0xF2},
|
|
{"APU", NULL, 0, 0xF3},
|
|
{"CIU", NULL, 0, 0xF4},
|
|
{"ICU", NULL, 0, 0xF5},
|
|
{"MAC", NULL, 0, 0xF6},
|
|
{"EXT7", NULL, 0, 0xF7},
|
|
{"EXT8", NULL, 0, 0xF8},
|
|
{"EXT9", NULL, 0, 0xF9},
|
|
{"EXT10", NULL, 0, 0xFA},
|
|
{"EXT11", NULL, 0, 0xFB},
|
|
{"EXT12", NULL, 0, 0xFC},
|
|
{"EXT13", NULL, 0, 0xFD},
|
|
{"EXTLAST", NULL, 0, 0xFE},
|
|
};
|
|
|
|
/*
|
|
* SDIO probe.
|
|
*
|
|
* This function probes an mwifiex device and registers it. It allocates
|
|
* the card structure, enables SDIO function number and initiates the
|
|
* device registration and initialization procedure by adding a logical
|
|
* interface.
|
|
*/
|
|
static int
|
|
mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
|
|
{
|
|
int ret;
|
|
struct sdio_mmc_card *card = NULL;
|
|
|
|
pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n",
|
|
func->vendor, func->device, func->class, func->num);
|
|
|
|
card = kzalloc(sizeof(struct sdio_mmc_card), GFP_KERNEL);
|
|
if (!card)
|
|
return -ENOMEM;
|
|
|
|
card->func = func;
|
|
|
|
func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
|
|
|
|
if (id->driver_data) {
|
|
struct mwifiex_sdio_device *data = (void *)id->driver_data;
|
|
|
|
card->firmware = data->firmware;
|
|
card->reg = data->reg;
|
|
card->max_ports = data->max_ports;
|
|
card->mp_agg_pkt_limit = data->mp_agg_pkt_limit;
|
|
card->supports_sdio_new_mode = data->supports_sdio_new_mode;
|
|
card->has_control_mask = data->has_control_mask;
|
|
card->tx_buf_size = data->tx_buf_size;
|
|
card->mp_tx_agg_buf_size = data->mp_tx_agg_buf_size;
|
|
card->mp_rx_agg_buf_size = data->mp_rx_agg_buf_size;
|
|
card->can_dump_fw = data->can_dump_fw;
|
|
card->can_auto_tdls = data->can_auto_tdls;
|
|
card->can_ext_scan = data->can_ext_scan;
|
|
}
|
|
|
|
sdio_claim_host(func);
|
|
ret = sdio_enable_func(func);
|
|
sdio_release_host(func);
|
|
|
|
if (ret) {
|
|
pr_err("%s: failed to enable function\n", __func__);
|
|
kfree(card);
|
|
return -EIO;
|
|
}
|
|
|
|
if (mwifiex_add_card(card, &add_remove_card_sem, &sdio_ops,
|
|
MWIFIEX_SDIO)) {
|
|
pr_err("%s: add card failed\n", __func__);
|
|
kfree(card);
|
|
sdio_claim_host(func);
|
|
ret = sdio_disable_func(func);
|
|
sdio_release_host(func);
|
|
ret = -1;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* SDIO resume.
|
|
*
|
|
* Kernel needs to suspend all functions separately. Therefore all
|
|
* registered functions must have drivers with suspend and resume
|
|
* methods. Failing that the kernel simply removes the whole card.
|
|
*
|
|
* If already not resumed, this function turns on the traffic and
|
|
* sends a host sleep cancel request to the firmware.
|
|
*/
|
|
static int mwifiex_sdio_resume(struct device *dev)
|
|
{
|
|
struct sdio_func *func = dev_to_sdio_func(dev);
|
|
struct sdio_mmc_card *card;
|
|
struct mwifiex_adapter *adapter;
|
|
mmc_pm_flag_t pm_flag = 0;
|
|
|
|
if (func) {
|
|
pm_flag = sdio_get_host_pm_caps(func);
|
|
card = sdio_get_drvdata(func);
|
|
if (!card || !card->adapter) {
|
|
pr_err("resume: invalid card or adapter\n");
|
|
return 0;
|
|
}
|
|
} else {
|
|
pr_err("resume: sdio_func is not specified\n");
|
|
return 0;
|
|
}
|
|
|
|
adapter = card->adapter;
|
|
|
|
if (!adapter->is_suspended) {
|
|
mwifiex_dbg(adapter, WARN,
|
|
"device already resumed\n");
|
|
return 0;
|
|
}
|
|
|
|
adapter->is_suspended = false;
|
|
|
|
/* Disable Host Sleep */
|
|
mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
|
|
MWIFIEX_ASYNC_CMD);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* SDIO remove.
|
|
*
|
|
* This function removes the interface and frees up the card structure.
|
|
*/
|
|
static void
|
|
mwifiex_sdio_remove(struct sdio_func *func)
|
|
{
|
|
struct sdio_mmc_card *card;
|
|
struct mwifiex_adapter *adapter;
|
|
struct mwifiex_private *priv;
|
|
|
|
card = sdio_get_drvdata(func);
|
|
if (!card)
|
|
return;
|
|
|
|
adapter = card->adapter;
|
|
if (!adapter || !adapter->priv_num)
|
|
return;
|
|
|
|
mwifiex_dbg(adapter, INFO, "info: SDIO func num=%d\n", func->num);
|
|
|
|
if (user_rmmod) {
|
|
if (adapter->is_suspended)
|
|
mwifiex_sdio_resume(adapter->dev);
|
|
|
|
mwifiex_deauthenticate_all(adapter);
|
|
|
|
priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
|
|
mwifiex_disable_auto_ds(priv);
|
|
mwifiex_init_shutdown_fw(priv, MWIFIEX_FUNC_SHUTDOWN);
|
|
}
|
|
|
|
mwifiex_remove_card(card->adapter, &add_remove_card_sem);
|
|
}
|
|
|
|
/*
|
|
* SDIO suspend.
|
|
*
|
|
* Kernel needs to suspend all functions separately. Therefore all
|
|
* registered functions must have drivers with suspend and resume
|
|
* methods. Failing that the kernel simply removes the whole card.
|
|
*
|
|
* If already not suspended, this function allocates and sends a host
|
|
* sleep activate request to the firmware and turns off the traffic.
|
|
*/
|
|
static int mwifiex_sdio_suspend(struct device *dev)
|
|
{
|
|
struct sdio_func *func = dev_to_sdio_func(dev);
|
|
struct sdio_mmc_card *card;
|
|
struct mwifiex_adapter *adapter;
|
|
mmc_pm_flag_t pm_flag = 0;
|
|
int ret = 0;
|
|
|
|
if (func) {
|
|
pm_flag = sdio_get_host_pm_caps(func);
|
|
pr_debug("cmd: %s: suspend: PM flag = 0x%x\n",
|
|
sdio_func_id(func), pm_flag);
|
|
if (!(pm_flag & MMC_PM_KEEP_POWER)) {
|
|
pr_err("%s: cannot remain alive while host is"
|
|
" suspended\n", sdio_func_id(func));
|
|
return -ENOSYS;
|
|
}
|
|
|
|
card = sdio_get_drvdata(func);
|
|
if (!card || !card->adapter) {
|
|
pr_err("suspend: invalid card or adapter\n");
|
|
return 0;
|
|
}
|
|
} else {
|
|
pr_err("suspend: sdio_func is not specified\n");
|
|
return 0;
|
|
}
|
|
|
|
adapter = card->adapter;
|
|
|
|
/* Enable the Host Sleep */
|
|
if (!mwifiex_enable_hs(adapter)) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"cmd: failed to suspend\n");
|
|
adapter->hs_enabling = false;
|
|
return -EFAULT;
|
|
}
|
|
|
|
mwifiex_dbg(adapter, INFO,
|
|
"cmd: suspend with MMC_PM_KEEP_POWER\n");
|
|
ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
|
|
|
|
/* Indicate device suspended */
|
|
adapter->is_suspended = true;
|
|
adapter->hs_enabling = false;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Device ID for SD8786 */
|
|
#define SDIO_DEVICE_ID_MARVELL_8786 (0x9116)
|
|
/* Device ID for SD8787 */
|
|
#define SDIO_DEVICE_ID_MARVELL_8787 (0x9119)
|
|
/* Device ID for SD8797 */
|
|
#define SDIO_DEVICE_ID_MARVELL_8797 (0x9129)
|
|
/* Device ID for SD8897 */
|
|
#define SDIO_DEVICE_ID_MARVELL_8897 (0x912d)
|
|
/* Device ID for SD8887 */
|
|
#define SDIO_DEVICE_ID_MARVELL_8887 (0x9135)
|
|
/* Device ID for SD8801 */
|
|
#define SDIO_DEVICE_ID_MARVELL_8801 (0x9139)
|
|
|
|
|
|
/* WLAN IDs */
|
|
static const struct sdio_device_id mwifiex_ids[] = {
|
|
{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8786),
|
|
.driver_data = (unsigned long) &mwifiex_sdio_sd8786},
|
|
{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787),
|
|
.driver_data = (unsigned long) &mwifiex_sdio_sd8787},
|
|
{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797),
|
|
.driver_data = (unsigned long) &mwifiex_sdio_sd8797},
|
|
{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8897),
|
|
.driver_data = (unsigned long) &mwifiex_sdio_sd8897},
|
|
{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8887),
|
|
.driver_data = (unsigned long)&mwifiex_sdio_sd8887},
|
|
{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8801),
|
|
.driver_data = (unsigned long)&mwifiex_sdio_sd8801},
|
|
{},
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(sdio, mwifiex_ids);
|
|
|
|
static const struct dev_pm_ops mwifiex_sdio_pm_ops = {
|
|
.suspend = mwifiex_sdio_suspend,
|
|
.resume = mwifiex_sdio_resume,
|
|
};
|
|
|
|
static struct sdio_driver mwifiex_sdio = {
|
|
.name = "mwifiex_sdio",
|
|
.id_table = mwifiex_ids,
|
|
.probe = mwifiex_sdio_probe,
|
|
.remove = mwifiex_sdio_remove,
|
|
.drv = {
|
|
.owner = THIS_MODULE,
|
|
.pm = &mwifiex_sdio_pm_ops,
|
|
}
|
|
};
|
|
|
|
/* Write data into SDIO card register. Caller claims SDIO device. */
|
|
static int
|
|
mwifiex_write_reg_locked(struct sdio_func *func, u32 reg, u8 data)
|
|
{
|
|
int ret = -1;
|
|
sdio_writeb(func, data, reg, &ret);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* This function writes data into SDIO card register.
|
|
*/
|
|
static int
|
|
mwifiex_write_reg(struct mwifiex_adapter *adapter, u32 reg, u8 data)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
int ret;
|
|
|
|
sdio_claim_host(card->func);
|
|
ret = mwifiex_write_reg_locked(card->func, reg, data);
|
|
sdio_release_host(card->func);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* This function reads data from SDIO card register.
|
|
*/
|
|
static int
|
|
mwifiex_read_reg(struct mwifiex_adapter *adapter, u32 reg, u8 *data)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
int ret = -1;
|
|
u8 val;
|
|
|
|
sdio_claim_host(card->func);
|
|
val = sdio_readb(card->func, reg, &ret);
|
|
sdio_release_host(card->func);
|
|
|
|
*data = val;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* This function writes multiple data into SDIO card memory.
|
|
*
|
|
* This does not work in suspended mode.
|
|
*/
|
|
static int
|
|
mwifiex_write_data_sync(struct mwifiex_adapter *adapter,
|
|
u8 *buffer, u32 pkt_len, u32 port)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
int ret;
|
|
u8 blk_mode =
|
|
(port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE : BLOCK_MODE;
|
|
u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1;
|
|
u32 blk_cnt =
|
|
(blk_mode ==
|
|
BLOCK_MODE) ? (pkt_len /
|
|
MWIFIEX_SDIO_BLOCK_SIZE) : pkt_len;
|
|
u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK);
|
|
|
|
if (adapter->is_suspended) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"%s: not allowed while suspended\n", __func__);
|
|
return -1;
|
|
}
|
|
|
|
sdio_claim_host(card->func);
|
|
|
|
ret = sdio_writesb(card->func, ioport, buffer, blk_cnt * blk_size);
|
|
|
|
sdio_release_host(card->func);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* This function reads multiple data from SDIO card memory.
|
|
*/
|
|
static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *buffer,
|
|
u32 len, u32 port, u8 claim)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
int ret;
|
|
u8 blk_mode = (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE
|
|
: BLOCK_MODE;
|
|
u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1;
|
|
u32 blk_cnt = (blk_mode == BLOCK_MODE) ? (len / MWIFIEX_SDIO_BLOCK_SIZE)
|
|
: len;
|
|
u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK);
|
|
|
|
if (claim)
|
|
sdio_claim_host(card->func);
|
|
|
|
ret = sdio_readsb(card->func, buffer, ioport, blk_cnt * blk_size);
|
|
|
|
if (claim)
|
|
sdio_release_host(card->func);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* This function wakes up the card.
|
|
*
|
|
* A host power up command is written to the card configuration
|
|
* register to wake up the card.
|
|
*/
|
|
static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter)
|
|
{
|
|
mwifiex_dbg(adapter, EVENT,
|
|
"event: wakeup device...\n");
|
|
|
|
return mwifiex_write_reg(adapter, CONFIGURATION_REG, HOST_POWER_UP);
|
|
}
|
|
|
|
/*
|
|
* This function is called after the card has woken up.
|
|
*
|
|
* The card configuration register is reset.
|
|
*/
|
|
static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter)
|
|
{
|
|
mwifiex_dbg(adapter, EVENT,
|
|
"cmd: wakeup device completed\n");
|
|
|
|
return mwifiex_write_reg(adapter, CONFIGURATION_REG, 0);
|
|
}
|
|
|
|
/*
|
|
* This function is used to initialize IO ports for the
|
|
* chipsets supporting SDIO new mode eg SD8897.
|
|
*/
|
|
static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter *adapter)
|
|
{
|
|
u8 reg;
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
adapter->ioport = MEM_PORT;
|
|
|
|
/* enable sdio new mode */
|
|
if (mwifiex_read_reg(adapter, card->reg->card_cfg_2_1_reg, ®))
|
|
return -1;
|
|
if (mwifiex_write_reg(adapter, card->reg->card_cfg_2_1_reg,
|
|
reg | CMD53_NEW_MODE))
|
|
return -1;
|
|
|
|
/* Configure cmd port and enable reading rx length from the register */
|
|
if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_0, ®))
|
|
return -1;
|
|
if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_0,
|
|
reg | CMD_PORT_RD_LEN_EN))
|
|
return -1;
|
|
|
|
/* Enable Dnld/Upld ready auto reset for cmd port after cmd53 is
|
|
* completed
|
|
*/
|
|
if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_1, ®))
|
|
return -1;
|
|
if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_1,
|
|
reg | CMD_PORT_AUTO_EN))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* This function initializes the IO ports.
|
|
*
|
|
* The following operations are performed -
|
|
* - Read the IO ports (0, 1 and 2)
|
|
* - Set host interrupt Reset-To-Read to clear
|
|
* - Set auto re-enable interrupt
|
|
*/
|
|
static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter)
|
|
{
|
|
u8 reg;
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
adapter->ioport = 0;
|
|
|
|
if (card->supports_sdio_new_mode) {
|
|
if (mwifiex_init_sdio_new_mode(adapter))
|
|
return -1;
|
|
goto cont;
|
|
}
|
|
|
|
/* Read the IO port */
|
|
if (!mwifiex_read_reg(adapter, card->reg->io_port_0_reg, ®))
|
|
adapter->ioport |= (reg & 0xff);
|
|
else
|
|
return -1;
|
|
|
|
if (!mwifiex_read_reg(adapter, card->reg->io_port_1_reg, ®))
|
|
adapter->ioport |= ((reg & 0xff) << 8);
|
|
else
|
|
return -1;
|
|
|
|
if (!mwifiex_read_reg(adapter, card->reg->io_port_2_reg, ®))
|
|
adapter->ioport |= ((reg & 0xff) << 16);
|
|
else
|
|
return -1;
|
|
cont:
|
|
mwifiex_dbg(adapter, INFO,
|
|
"info: SDIO FUNC1 IO port: %#x\n", adapter->ioport);
|
|
|
|
/* Set Host interrupt reset to read to clear */
|
|
if (!mwifiex_read_reg(adapter, card->reg->host_int_rsr_reg, ®))
|
|
mwifiex_write_reg(adapter, card->reg->host_int_rsr_reg,
|
|
reg | card->reg->sdio_int_mask);
|
|
else
|
|
return -1;
|
|
|
|
/* Dnld/Upld ready set to auto reset */
|
|
if (!mwifiex_read_reg(adapter, card->reg->card_misc_cfg_reg, ®))
|
|
mwifiex_write_reg(adapter, card->reg->card_misc_cfg_reg,
|
|
reg | AUTO_RE_ENABLE_INT);
|
|
else
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This function sends data to the card.
|
|
*/
|
|
static int mwifiex_write_data_to_card(struct mwifiex_adapter *adapter,
|
|
u8 *payload, u32 pkt_len, u32 port)
|
|
{
|
|
u32 i = 0;
|
|
int ret;
|
|
|
|
do {
|
|
ret = mwifiex_write_data_sync(adapter, payload, pkt_len, port);
|
|
if (ret) {
|
|
i++;
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"host_to_card, write iomem\t"
|
|
"(%d) failed: %d\n", i, ret);
|
|
if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04))
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"write CFG reg failed\n");
|
|
|
|
ret = -1;
|
|
if (i > MAX_WRITE_IOMEM_RETRY)
|
|
return ret;
|
|
}
|
|
} while (ret == -1);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* This function gets the read port.
|
|
*
|
|
* If control port bit is set in MP read bitmap, the control port
|
|
* is returned, otherwise the current read port is returned and
|
|
* the value is increased (provided it does not reach the maximum
|
|
* limit, in which case it is reset to 1)
|
|
*/
|
|
static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
const struct mwifiex_sdio_card_reg *reg = card->reg;
|
|
u32 rd_bitmap = card->mp_rd_bitmap;
|
|
|
|
mwifiex_dbg(adapter, DATA,
|
|
"data: mp_rd_bitmap=0x%08x\n", rd_bitmap);
|
|
|
|
if (card->supports_sdio_new_mode) {
|
|
if (!(rd_bitmap & reg->data_port_mask))
|
|
return -1;
|
|
} else {
|
|
if (!(rd_bitmap & (CTRL_PORT_MASK | reg->data_port_mask)))
|
|
return -1;
|
|
}
|
|
|
|
if ((card->has_control_mask) &&
|
|
(card->mp_rd_bitmap & CTRL_PORT_MASK)) {
|
|
card->mp_rd_bitmap &= (u32) (~CTRL_PORT_MASK);
|
|
*port = CTRL_PORT;
|
|
mwifiex_dbg(adapter, DATA,
|
|
"data: port=%d mp_rd_bitmap=0x%08x\n",
|
|
*port, card->mp_rd_bitmap);
|
|
return 0;
|
|
}
|
|
|
|
if (!(card->mp_rd_bitmap & (1 << card->curr_rd_port)))
|
|
return -1;
|
|
|
|
/* We are now handling the SDIO data ports */
|
|
card->mp_rd_bitmap &= (u32)(~(1 << card->curr_rd_port));
|
|
*port = card->curr_rd_port;
|
|
|
|
if (++card->curr_rd_port == card->max_ports)
|
|
card->curr_rd_port = reg->start_rd_port;
|
|
|
|
mwifiex_dbg(adapter, DATA,
|
|
"data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n",
|
|
*port, rd_bitmap, card->mp_rd_bitmap);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This function gets the write port for data.
|
|
*
|
|
* The current write port is returned if available and the value is
|
|
* increased (provided it does not reach the maximum limit, in which
|
|
* case it is reset to 1)
|
|
*/
|
|
static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u32 *port)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
const struct mwifiex_sdio_card_reg *reg = card->reg;
|
|
u32 wr_bitmap = card->mp_wr_bitmap;
|
|
|
|
mwifiex_dbg(adapter, DATA,
|
|
"data: mp_wr_bitmap=0x%08x\n", wr_bitmap);
|
|
|
|
if (!(wr_bitmap & card->mp_data_port_mask)) {
|
|
adapter->data_sent = true;
|
|
return -EBUSY;
|
|
}
|
|
|
|
if (card->mp_wr_bitmap & (1 << card->curr_wr_port)) {
|
|
card->mp_wr_bitmap &= (u32) (~(1 << card->curr_wr_port));
|
|
*port = card->curr_wr_port;
|
|
if (++card->curr_wr_port == card->mp_end_port)
|
|
card->curr_wr_port = reg->start_wr_port;
|
|
} else {
|
|
adapter->data_sent = true;
|
|
return -EBUSY;
|
|
}
|
|
|
|
if ((card->has_control_mask) && (*port == CTRL_PORT)) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
|
|
*port, card->curr_wr_port, wr_bitmap,
|
|
card->mp_wr_bitmap);
|
|
return -1;
|
|
}
|
|
|
|
mwifiex_dbg(adapter, DATA,
|
|
"data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
|
|
*port, wr_bitmap, card->mp_wr_bitmap);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This function polls the card status.
|
|
*/
|
|
static int
|
|
mwifiex_sdio_poll_card_status(struct mwifiex_adapter *adapter, u8 bits)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
u32 tries;
|
|
u8 cs;
|
|
|
|
for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
|
|
if (mwifiex_read_reg(adapter, card->reg->poll_reg, &cs))
|
|
break;
|
|
else if ((cs & bits) == bits)
|
|
return 0;
|
|
|
|
usleep_range(10, 20);
|
|
}
|
|
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"poll card status failed, tries = %d\n", tries);
|
|
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* This function reads the firmware status.
|
|
*/
|
|
static int
|
|
mwifiex_sdio_read_fw_status(struct mwifiex_adapter *adapter, u16 *dat)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
const struct mwifiex_sdio_card_reg *reg = card->reg;
|
|
u8 fws0, fws1;
|
|
|
|
if (mwifiex_read_reg(adapter, reg->status_reg_0, &fws0))
|
|
return -1;
|
|
|
|
if (mwifiex_read_reg(adapter, reg->status_reg_1, &fws1))
|
|
return -1;
|
|
|
|
*dat = (u16) ((fws1 << 8) | fws0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This function disables the host interrupt.
|
|
*
|
|
* The host interrupt mask is read, the disable bit is reset and
|
|
* written back to the card host interrupt mask register.
|
|
*/
|
|
static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter *adapter)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
struct sdio_func *func = card->func;
|
|
|
|
sdio_claim_host(func);
|
|
mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg, 0);
|
|
sdio_release_irq(func);
|
|
sdio_release_host(func);
|
|
}
|
|
|
|
/*
|
|
* This function reads the interrupt status from card.
|
|
*/
|
|
static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
u8 sdio_ireg;
|
|
unsigned long flags;
|
|
|
|
if (mwifiex_read_data_sync(adapter, card->mp_regs,
|
|
card->reg->max_mp_regs,
|
|
REG_PORT | MWIFIEX_SDIO_BYTE_MODE_MASK, 0)) {
|
|
mwifiex_dbg(adapter, ERROR, "read mp_regs failed\n");
|
|
return;
|
|
}
|
|
|
|
sdio_ireg = card->mp_regs[card->reg->host_int_status_reg];
|
|
if (sdio_ireg) {
|
|
/*
|
|
* DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
|
|
* For SDIO new mode CMD port interrupts
|
|
* DN_LD_CMD_PORT_HOST_INT_STATUS and/or
|
|
* UP_LD_CMD_PORT_HOST_INT_STATUS
|
|
* Clear the interrupt status register
|
|
*/
|
|
mwifiex_dbg(adapter, INTR,
|
|
"int: sdio_ireg = %#x\n", sdio_ireg);
|
|
spin_lock_irqsave(&adapter->int_lock, flags);
|
|
adapter->int_status |= sdio_ireg;
|
|
spin_unlock_irqrestore(&adapter->int_lock, flags);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* SDIO interrupt handler.
|
|
*
|
|
* This function reads the interrupt status from firmware and handles
|
|
* the interrupt in current thread (ksdioirqd) right away.
|
|
*/
|
|
static void
|
|
mwifiex_sdio_interrupt(struct sdio_func *func)
|
|
{
|
|
struct mwifiex_adapter *adapter;
|
|
struct sdio_mmc_card *card;
|
|
|
|
card = sdio_get_drvdata(func);
|
|
if (!card || !card->adapter) {
|
|
pr_debug("int: func=%p card=%p adapter=%p\n",
|
|
func, card, card ? card->adapter : NULL);
|
|
return;
|
|
}
|
|
adapter = card->adapter;
|
|
|
|
if (!adapter->pps_uapsd_mode && adapter->ps_state == PS_STATE_SLEEP)
|
|
adapter->ps_state = PS_STATE_AWAKE;
|
|
|
|
mwifiex_interrupt_status(adapter);
|
|
mwifiex_main_process(adapter);
|
|
}
|
|
|
|
/*
|
|
* This function enables the host interrupt.
|
|
*
|
|
* The host interrupt enable mask is written to the card
|
|
* host interrupt mask register.
|
|
*/
|
|
static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter *adapter)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
struct sdio_func *func = card->func;
|
|
int ret;
|
|
|
|
sdio_claim_host(func);
|
|
|
|
/* Request the SDIO IRQ */
|
|
ret = sdio_claim_irq(func, mwifiex_sdio_interrupt);
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"claim irq failed: ret=%d\n", ret);
|
|
goto out;
|
|
}
|
|
|
|
/* Simply write the mask to the register */
|
|
ret = mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg,
|
|
card->reg->host_int_enable);
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"enable host interrupt failed\n");
|
|
sdio_release_irq(func);
|
|
}
|
|
|
|
out:
|
|
sdio_release_host(func);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* This function sends a data buffer to the card.
|
|
*/
|
|
static int mwifiex_sdio_card_to_host(struct mwifiex_adapter *adapter,
|
|
u32 *type, u8 *buffer,
|
|
u32 npayload, u32 ioport)
|
|
{
|
|
int ret;
|
|
u32 nb;
|
|
|
|
if (!buffer) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"%s: buffer is NULL\n", __func__);
|
|
return -1;
|
|
}
|
|
|
|
ret = mwifiex_read_data_sync(adapter, buffer, npayload, ioport, 1);
|
|
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"%s: read iomem failed: %d\n", __func__,
|
|
ret);
|
|
return -1;
|
|
}
|
|
|
|
nb = le16_to_cpu(*(__le16 *) (buffer));
|
|
if (nb > npayload) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"%s: invalid packet, nb=%d npayload=%d\n",
|
|
__func__, nb, npayload);
|
|
return -1;
|
|
}
|
|
|
|
*type = le16_to_cpu(*(__le16 *) (buffer + 2));
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* This function downloads the firmware to the card.
|
|
*
|
|
* Firmware is downloaded to the card in blocks. Every block download
|
|
* is tested for CRC errors, and retried a number of times before
|
|
* returning failure.
|
|
*/
|
|
static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
|
|
struct mwifiex_fw_image *fw)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
const struct mwifiex_sdio_card_reg *reg = card->reg;
|
|
int ret;
|
|
u8 *firmware = fw->fw_buf;
|
|
u32 firmware_len = fw->fw_len;
|
|
u32 offset = 0;
|
|
u8 base0, base1;
|
|
u8 *fwbuf;
|
|
u16 len = 0;
|
|
u32 txlen, tx_blocks = 0, tries;
|
|
u32 i = 0;
|
|
|
|
if (!firmware_len) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"firmware image not found! Terminating download\n");
|
|
return -1;
|
|
}
|
|
|
|
mwifiex_dbg(adapter, INFO,
|
|
"info: downloading FW image (%d bytes)\n",
|
|
firmware_len);
|
|
|
|
/* Assume that the allocated buffer is 8-byte aligned */
|
|
fwbuf = kzalloc(MWIFIEX_UPLD_SIZE, GFP_KERNEL);
|
|
if (!fwbuf)
|
|
return -ENOMEM;
|
|
|
|
/* Perform firmware data transfer */
|
|
do {
|
|
/* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY
|
|
bits */
|
|
ret = mwifiex_sdio_poll_card_status(adapter, CARD_IO_READY |
|
|
DN_LD_CARD_RDY);
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"FW download with helper:\t"
|
|
"poll status timeout @ %d\n", offset);
|
|
goto done;
|
|
}
|
|
|
|
/* More data? */
|
|
if (offset >= firmware_len)
|
|
break;
|
|
|
|
for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
|
|
ret = mwifiex_read_reg(adapter, reg->base_0_reg,
|
|
&base0);
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"dev BASE0 register read failed:\t"
|
|
"base0=%#04X(%d). Terminating dnld\n",
|
|
base0, base0);
|
|
goto done;
|
|
}
|
|
ret = mwifiex_read_reg(adapter, reg->base_1_reg,
|
|
&base1);
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"dev BASE1 register read failed:\t"
|
|
"base1=%#04X(%d). Terminating dnld\n",
|
|
base1, base1);
|
|
goto done;
|
|
}
|
|
len = (u16) (((base1 & 0xff) << 8) | (base0 & 0xff));
|
|
|
|
if (len)
|
|
break;
|
|
|
|
usleep_range(10, 20);
|
|
}
|
|
|
|
if (!len) {
|
|
break;
|
|
} else if (len > MWIFIEX_UPLD_SIZE) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"FW dnld failed @ %d, invalid length %d\n",
|
|
offset, len);
|
|
ret = -1;
|
|
goto done;
|
|
}
|
|
|
|
txlen = len;
|
|
|
|
if (len & BIT(0)) {
|
|
i++;
|
|
if (i > MAX_WRITE_IOMEM_RETRY) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"FW dnld failed @ %d, over max retry\n",
|
|
offset);
|
|
ret = -1;
|
|
goto done;
|
|
}
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"CRC indicated by the helper:\t"
|
|
"len = 0x%04X, txlen = %d\n", len, txlen);
|
|
len &= ~BIT(0);
|
|
/* Setting this to 0 to resend from same offset */
|
|
txlen = 0;
|
|
} else {
|
|
i = 0;
|
|
|
|
/* Set blocksize to transfer - checking for last
|
|
block */
|
|
if (firmware_len - offset < txlen)
|
|
txlen = firmware_len - offset;
|
|
|
|
tx_blocks = (txlen + MWIFIEX_SDIO_BLOCK_SIZE - 1)
|
|
/ MWIFIEX_SDIO_BLOCK_SIZE;
|
|
|
|
/* Copy payload to buffer */
|
|
memmove(fwbuf, &firmware[offset], txlen);
|
|
}
|
|
|
|
ret = mwifiex_write_data_sync(adapter, fwbuf, tx_blocks *
|
|
MWIFIEX_SDIO_BLOCK_SIZE,
|
|
adapter->ioport);
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"FW download, write iomem (%d) failed @ %d\n",
|
|
i, offset);
|
|
if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04))
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"write CFG reg failed\n");
|
|
|
|
ret = -1;
|
|
goto done;
|
|
}
|
|
|
|
offset += txlen;
|
|
} while (true);
|
|
|
|
mwifiex_dbg(adapter, MSG,
|
|
"info: FW download over, size %d bytes\n", offset);
|
|
|
|
ret = 0;
|
|
done:
|
|
kfree(fwbuf);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* This function checks the firmware status in card.
|
|
*
|
|
* The winner interface is also determined by this function.
|
|
*/
|
|
static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter,
|
|
u32 poll_num)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
int ret = 0;
|
|
u16 firmware_stat;
|
|
u32 tries;
|
|
u8 winner_status;
|
|
|
|
/* Wait for firmware initialization event */
|
|
for (tries = 0; tries < poll_num; tries++) {
|
|
ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat);
|
|
if (ret)
|
|
continue;
|
|
if (firmware_stat == FIRMWARE_READY_SDIO) {
|
|
ret = 0;
|
|
break;
|
|
} else {
|
|
msleep(100);
|
|
ret = -1;
|
|
}
|
|
}
|
|
|
|
if (ret) {
|
|
if (mwifiex_read_reg
|
|
(adapter, card->reg->status_reg_0, &winner_status))
|
|
winner_status = 0;
|
|
|
|
if (winner_status)
|
|
adapter->winner = 0;
|
|
else
|
|
adapter->winner = 1;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* This function decode sdio aggreation pkt.
|
|
*
|
|
* Based on the the data block size and pkt_len,
|
|
* skb data will be decoded to few packets.
|
|
*/
|
|
static void mwifiex_deaggr_sdio_pkt(struct mwifiex_adapter *adapter,
|
|
struct sk_buff *skb)
|
|
{
|
|
u32 total_pkt_len, pkt_len;
|
|
struct sk_buff *skb_deaggr;
|
|
u32 pkt_type;
|
|
u16 blk_size;
|
|
u8 blk_num;
|
|
u8 *data;
|
|
|
|
data = skb->data;
|
|
total_pkt_len = skb->len;
|
|
|
|
while (total_pkt_len >= (SDIO_HEADER_OFFSET + INTF_HEADER_LEN)) {
|
|
if (total_pkt_len < adapter->sdio_rx_block_size)
|
|
break;
|
|
blk_num = *(data + BLOCK_NUMBER_OFFSET);
|
|
blk_size = adapter->sdio_rx_block_size * blk_num;
|
|
if (blk_size > total_pkt_len) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"%s: error in blk_size,\t"
|
|
"blk_num=%d, blk_size=%d, total_pkt_len=%d\n",
|
|
__func__, blk_num, blk_size, total_pkt_len);
|
|
break;
|
|
}
|
|
pkt_len = le16_to_cpu(*(__le16 *)(data + SDIO_HEADER_OFFSET));
|
|
pkt_type = le16_to_cpu(*(__le16 *)(data + SDIO_HEADER_OFFSET +
|
|
2));
|
|
if ((pkt_len + SDIO_HEADER_OFFSET) > blk_size) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"%s: error in pkt_len,\t"
|
|
"pkt_len=%d, blk_size=%d\n",
|
|
__func__, pkt_len, blk_size);
|
|
break;
|
|
}
|
|
skb_deaggr = mwifiex_alloc_dma_align_buf(pkt_len,
|
|
GFP_KERNEL | GFP_DMA);
|
|
if (!skb_deaggr)
|
|
break;
|
|
skb_put(skb_deaggr, pkt_len);
|
|
memcpy(skb_deaggr->data, data + SDIO_HEADER_OFFSET, pkt_len);
|
|
skb_pull(skb_deaggr, INTF_HEADER_LEN);
|
|
|
|
mwifiex_handle_rx_packet(adapter, skb_deaggr);
|
|
data += blk_size;
|
|
total_pkt_len -= blk_size;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* This function decodes a received packet.
|
|
*
|
|
* Based on the type, the packet is treated as either a data, or
|
|
* a command response, or an event, and the correct handler
|
|
* function is invoked.
|
|
*/
|
|
static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter,
|
|
struct sk_buff *skb, u32 upld_typ)
|
|
{
|
|
u8 *cmd_buf;
|
|
__le16 *curr_ptr = (__le16 *)skb->data;
|
|
u16 pkt_len = le16_to_cpu(*curr_ptr);
|
|
struct mwifiex_rxinfo *rx_info;
|
|
|
|
if (upld_typ != MWIFIEX_TYPE_AGGR_DATA) {
|
|
skb_trim(skb, pkt_len);
|
|
skb_pull(skb, INTF_HEADER_LEN);
|
|
}
|
|
|
|
switch (upld_typ) {
|
|
case MWIFIEX_TYPE_AGGR_DATA:
|
|
mwifiex_dbg(adapter, INFO,
|
|
"info: --- Rx: Aggr Data packet ---\n");
|
|
rx_info = MWIFIEX_SKB_RXCB(skb);
|
|
rx_info->buf_type = MWIFIEX_TYPE_AGGR_DATA;
|
|
if (adapter->rx_work_enabled) {
|
|
skb_queue_tail(&adapter->rx_data_q, skb);
|
|
atomic_inc(&adapter->rx_pending);
|
|
adapter->data_received = true;
|
|
} else {
|
|
mwifiex_deaggr_sdio_pkt(adapter, skb);
|
|
dev_kfree_skb_any(skb);
|
|
}
|
|
break;
|
|
|
|
case MWIFIEX_TYPE_DATA:
|
|
mwifiex_dbg(adapter, DATA,
|
|
"info: --- Rx: Data packet ---\n");
|
|
if (adapter->rx_work_enabled) {
|
|
skb_queue_tail(&adapter->rx_data_q, skb);
|
|
adapter->data_received = true;
|
|
atomic_inc(&adapter->rx_pending);
|
|
} else {
|
|
mwifiex_handle_rx_packet(adapter, skb);
|
|
}
|
|
break;
|
|
|
|
case MWIFIEX_TYPE_CMD:
|
|
mwifiex_dbg(adapter, CMD,
|
|
"info: --- Rx: Cmd Response ---\n");
|
|
/* take care of curr_cmd = NULL case */
|
|
if (!adapter->curr_cmd) {
|
|
cmd_buf = adapter->upld_buf;
|
|
|
|
if (adapter->ps_state == PS_STATE_SLEEP_CFM)
|
|
mwifiex_process_sleep_confirm_resp(adapter,
|
|
skb->data,
|
|
skb->len);
|
|
|
|
memcpy(cmd_buf, skb->data,
|
|
min_t(u32, MWIFIEX_SIZE_OF_CMD_BUFFER,
|
|
skb->len));
|
|
|
|
dev_kfree_skb_any(skb);
|
|
} else {
|
|
adapter->cmd_resp_received = true;
|
|
adapter->curr_cmd->resp_skb = skb;
|
|
}
|
|
break;
|
|
|
|
case MWIFIEX_TYPE_EVENT:
|
|
mwifiex_dbg(adapter, EVENT,
|
|
"info: --- Rx: Event ---\n");
|
|
adapter->event_cause = le32_to_cpu(*(__le32 *) skb->data);
|
|
|
|
if ((skb->len > 0) && (skb->len < MAX_EVENT_SIZE))
|
|
memcpy(adapter->event_body,
|
|
skb->data + MWIFIEX_EVENT_HEADER_LEN,
|
|
skb->len);
|
|
|
|
/* event cause has been saved to adapter->event_cause */
|
|
adapter->event_received = true;
|
|
adapter->event_skb = skb;
|
|
|
|
break;
|
|
|
|
default:
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"unknown upload type %#x\n", upld_typ);
|
|
dev_kfree_skb_any(skb);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This function transfers received packets from card to driver, performing
|
|
* aggregation if required.
|
|
*
|
|
* For data received on control port, or if aggregation is disabled, the
|
|
* received buffers are uploaded as separate packets. However, if aggregation
|
|
* is enabled and required, the buffers are copied onto an aggregation buffer,
|
|
* provided there is space left, processed and finally uploaded.
|
|
*/
|
|
static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter,
|
|
u16 rx_len, u8 port)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
s32 f_do_rx_aggr = 0;
|
|
s32 f_do_rx_cur = 0;
|
|
s32 f_aggr_cur = 0;
|
|
s32 f_post_aggr_cur = 0;
|
|
struct sk_buff *skb_deaggr;
|
|
struct sk_buff *skb = NULL;
|
|
u32 pkt_len, pkt_type, mport, pind;
|
|
u8 *curr_ptr;
|
|
|
|
if ((card->has_control_mask) && (port == CTRL_PORT)) {
|
|
/* Read the command Resp without aggr */
|
|
mwifiex_dbg(adapter, CMD,
|
|
"info: %s: no aggregation for cmd\t"
|
|
"response\n", __func__);
|
|
|
|
f_do_rx_cur = 1;
|
|
goto rx_curr_single;
|
|
}
|
|
|
|
if (!card->mpa_rx.enabled) {
|
|
mwifiex_dbg(adapter, WARN,
|
|
"info: %s: rx aggregation disabled\n",
|
|
__func__);
|
|
|
|
f_do_rx_cur = 1;
|
|
goto rx_curr_single;
|
|
}
|
|
|
|
if ((!card->has_control_mask && (card->mp_rd_bitmap &
|
|
card->reg->data_port_mask)) ||
|
|
(card->has_control_mask && (card->mp_rd_bitmap &
|
|
(~((u32) CTRL_PORT_MASK))))) {
|
|
/* Some more data RX pending */
|
|
mwifiex_dbg(adapter, INFO,
|
|
"info: %s: not last packet\n", __func__);
|
|
|
|
if (MP_RX_AGGR_IN_PROGRESS(card)) {
|
|
if (MP_RX_AGGR_BUF_HAS_ROOM(card, rx_len)) {
|
|
f_aggr_cur = 1;
|
|
} else {
|
|
/* No room in Aggr buf, do rx aggr now */
|
|
f_do_rx_aggr = 1;
|
|
f_post_aggr_cur = 1;
|
|
}
|
|
} else {
|
|
/* Rx aggr not in progress */
|
|
f_aggr_cur = 1;
|
|
}
|
|
|
|
} else {
|
|
/* No more data RX pending */
|
|
mwifiex_dbg(adapter, INFO,
|
|
"info: %s: last packet\n", __func__);
|
|
|
|
if (MP_RX_AGGR_IN_PROGRESS(card)) {
|
|
f_do_rx_aggr = 1;
|
|
if (MP_RX_AGGR_BUF_HAS_ROOM(card, rx_len))
|
|
f_aggr_cur = 1;
|
|
else
|
|
/* No room in Aggr buf, do rx aggr now */
|
|
f_do_rx_cur = 1;
|
|
} else {
|
|
f_do_rx_cur = 1;
|
|
}
|
|
}
|
|
|
|
if (f_aggr_cur) {
|
|
mwifiex_dbg(adapter, INFO,
|
|
"info: current packet aggregation\n");
|
|
/* Curr pkt can be aggregated */
|
|
mp_rx_aggr_setup(card, rx_len, port);
|
|
|
|
if (MP_RX_AGGR_PKT_LIMIT_REACHED(card) ||
|
|
mp_rx_aggr_port_limit_reached(card)) {
|
|
mwifiex_dbg(adapter, INFO,
|
|
"info: %s: aggregated packet\t"
|
|
"limit reached\n", __func__);
|
|
/* No more pkts allowed in Aggr buf, rx it */
|
|
f_do_rx_aggr = 1;
|
|
}
|
|
}
|
|
|
|
if (f_do_rx_aggr) {
|
|
/* do aggr RX now */
|
|
mwifiex_dbg(adapter, DATA,
|
|
"info: do_rx_aggr: num of packets: %d\n",
|
|
card->mpa_rx.pkt_cnt);
|
|
|
|
if (card->supports_sdio_new_mode) {
|
|
int i;
|
|
u32 port_count;
|
|
|
|
for (i = 0, port_count = 0; i < card->max_ports; i++)
|
|
if (card->mpa_rx.ports & BIT(i))
|
|
port_count++;
|
|
|
|
/* Reading data from "start_port + 0" to "start_port +
|
|
* port_count -1", so decrease the count by 1
|
|
*/
|
|
port_count--;
|
|
mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
|
|
(port_count << 8)) + card->mpa_rx.start_port;
|
|
} else {
|
|
mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
|
|
(card->mpa_rx.ports << 4)) +
|
|
card->mpa_rx.start_port;
|
|
}
|
|
|
|
if (mwifiex_read_data_sync(adapter, card->mpa_rx.buf,
|
|
card->mpa_rx.buf_len, mport, 1))
|
|
goto error;
|
|
|
|
curr_ptr = card->mpa_rx.buf;
|
|
|
|
for (pind = 0; pind < card->mpa_rx.pkt_cnt; pind++) {
|
|
u32 *len_arr = card->mpa_rx.len_arr;
|
|
|
|
/* get curr PKT len & type */
|
|
pkt_len = le16_to_cpu(*(__le16 *) &curr_ptr[0]);
|
|
pkt_type = le16_to_cpu(*(__le16 *) &curr_ptr[2]);
|
|
|
|
/* copy pkt to deaggr buf */
|
|
skb_deaggr = mwifiex_alloc_dma_align_buf(len_arr[pind],
|
|
GFP_KERNEL |
|
|
GFP_DMA);
|
|
if (!skb_deaggr) {
|
|
mwifiex_dbg(adapter, ERROR, "skb allocation failure\t"
|
|
"drop pkt len=%d type=%d\n",
|
|
pkt_len, pkt_type);
|
|
curr_ptr += len_arr[pind];
|
|
continue;
|
|
}
|
|
|
|
skb_put(skb_deaggr, len_arr[pind]);
|
|
|
|
if ((pkt_type == MWIFIEX_TYPE_DATA ||
|
|
(pkt_type == MWIFIEX_TYPE_AGGR_DATA &&
|
|
adapter->sdio_rx_aggr_enable)) &&
|
|
(pkt_len <= len_arr[pind])) {
|
|
|
|
memcpy(skb_deaggr->data, curr_ptr, pkt_len);
|
|
|
|
skb_trim(skb_deaggr, pkt_len);
|
|
|
|
/* Process de-aggr packet */
|
|
mwifiex_decode_rx_packet(adapter, skb_deaggr,
|
|
pkt_type);
|
|
} else {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"drop wrong aggr pkt:\t"
|
|
"sdio_single_port_rx_aggr=%d\t"
|
|
"type=%d len=%d max_len=%d\n",
|
|
adapter->sdio_rx_aggr_enable,
|
|
pkt_type, pkt_len, len_arr[pind]);
|
|
dev_kfree_skb_any(skb_deaggr);
|
|
}
|
|
curr_ptr += len_arr[pind];
|
|
}
|
|
MP_RX_AGGR_BUF_RESET(card);
|
|
}
|
|
|
|
rx_curr_single:
|
|
if (f_do_rx_cur) {
|
|
mwifiex_dbg(adapter, INFO, "info: RX: port: %d, rx_len: %d\n",
|
|
port, rx_len);
|
|
|
|
skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL | GFP_DMA);
|
|
if (!skb) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"single skb allocated fail,\t"
|
|
"drop pkt port=%d len=%d\n", port, rx_len);
|
|
if (mwifiex_sdio_card_to_host(adapter, &pkt_type,
|
|
card->mpa_rx.buf, rx_len,
|
|
adapter->ioport + port))
|
|
goto error;
|
|
return 0;
|
|
}
|
|
|
|
skb_put(skb, rx_len);
|
|
|
|
if (mwifiex_sdio_card_to_host(adapter, &pkt_type,
|
|
skb->data, skb->len,
|
|
adapter->ioport + port))
|
|
goto error;
|
|
if (!adapter->sdio_rx_aggr_enable &&
|
|
pkt_type == MWIFIEX_TYPE_AGGR_DATA) {
|
|
mwifiex_dbg(adapter, ERROR, "drop wrong pkt type %d\t"
|
|
"current SDIO RX Aggr not enabled\n",
|
|
pkt_type);
|
|
dev_kfree_skb_any(skb);
|
|
return 0;
|
|
}
|
|
|
|
mwifiex_decode_rx_packet(adapter, skb, pkt_type);
|
|
}
|
|
if (f_post_aggr_cur) {
|
|
mwifiex_dbg(adapter, INFO,
|
|
"info: current packet aggregation\n");
|
|
/* Curr pkt can be aggregated */
|
|
mp_rx_aggr_setup(card, rx_len, port);
|
|
}
|
|
|
|
return 0;
|
|
error:
|
|
if (MP_RX_AGGR_IN_PROGRESS(card))
|
|
MP_RX_AGGR_BUF_RESET(card);
|
|
|
|
if (f_do_rx_cur && skb)
|
|
/* Single transfer pending. Free curr buff also */
|
|
dev_kfree_skb_any(skb);
|
|
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* This function checks the current interrupt status.
|
|
*
|
|
* The following interrupts are checked and handled by this function -
|
|
* - Data sent
|
|
* - Command sent
|
|
* - Packets received
|
|
*
|
|
* Since the firmware does not generate download ready interrupt if the
|
|
* port updated is command port only, command sent interrupt checking
|
|
* should be done manually, and for every SDIO interrupt.
|
|
*
|
|
* In case of Rx packets received, the packets are uploaded from card to
|
|
* host and processed accordingly.
|
|
*/
|
|
static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
const struct mwifiex_sdio_card_reg *reg = card->reg;
|
|
int ret = 0;
|
|
u8 sdio_ireg;
|
|
struct sk_buff *skb;
|
|
u8 port = CTRL_PORT;
|
|
u32 len_reg_l, len_reg_u;
|
|
u32 rx_blocks;
|
|
u16 rx_len;
|
|
unsigned long flags;
|
|
u32 bitmap;
|
|
u8 cr;
|
|
|
|
spin_lock_irqsave(&adapter->int_lock, flags);
|
|
sdio_ireg = adapter->int_status;
|
|
adapter->int_status = 0;
|
|
spin_unlock_irqrestore(&adapter->int_lock, flags);
|
|
|
|
if (!sdio_ireg)
|
|
return ret;
|
|
|
|
/* Following interrupt is only for SDIO new mode */
|
|
if (sdio_ireg & DN_LD_CMD_PORT_HOST_INT_STATUS && adapter->cmd_sent)
|
|
adapter->cmd_sent = false;
|
|
|
|
/* Following interrupt is only for SDIO new mode */
|
|
if (sdio_ireg & UP_LD_CMD_PORT_HOST_INT_STATUS) {
|
|
u32 pkt_type;
|
|
|
|
/* read the len of control packet */
|
|
rx_len = card->mp_regs[reg->cmd_rd_len_1] << 8;
|
|
rx_len |= (u16)card->mp_regs[reg->cmd_rd_len_0];
|
|
rx_blocks = DIV_ROUND_UP(rx_len, MWIFIEX_SDIO_BLOCK_SIZE);
|
|
if (rx_len <= INTF_HEADER_LEN ||
|
|
(rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) >
|
|
MWIFIEX_RX_DATA_BUF_SIZE)
|
|
return -1;
|
|
rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE);
|
|
mwifiex_dbg(adapter, INFO, "info: rx_len = %d\n", rx_len);
|
|
|
|
skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL | GFP_DMA);
|
|
if (!skb)
|
|
return -1;
|
|
|
|
skb_put(skb, rx_len);
|
|
|
|
if (mwifiex_sdio_card_to_host(adapter, &pkt_type, skb->data,
|
|
skb->len, adapter->ioport |
|
|
CMD_PORT_SLCT)) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"%s: failed to card_to_host", __func__);
|
|
dev_kfree_skb_any(skb);
|
|
goto term_cmd;
|
|
}
|
|
|
|
if ((pkt_type != MWIFIEX_TYPE_CMD) &&
|
|
(pkt_type != MWIFIEX_TYPE_EVENT))
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"%s:Received wrong packet on cmd port",
|
|
__func__);
|
|
|
|
mwifiex_decode_rx_packet(adapter, skb, pkt_type);
|
|
}
|
|
|
|
if (sdio_ireg & DN_LD_HOST_INT_STATUS) {
|
|
bitmap = (u32) card->mp_regs[reg->wr_bitmap_l];
|
|
bitmap |= ((u32) card->mp_regs[reg->wr_bitmap_u]) << 8;
|
|
if (card->supports_sdio_new_mode) {
|
|
bitmap |=
|
|
((u32) card->mp_regs[reg->wr_bitmap_1l]) << 16;
|
|
bitmap |=
|
|
((u32) card->mp_regs[reg->wr_bitmap_1u]) << 24;
|
|
}
|
|
card->mp_wr_bitmap = bitmap;
|
|
|
|
mwifiex_dbg(adapter, INTR,
|
|
"int: DNLD: wr_bitmap=0x%x\n",
|
|
card->mp_wr_bitmap);
|
|
if (adapter->data_sent &&
|
|
(card->mp_wr_bitmap & card->mp_data_port_mask)) {
|
|
mwifiex_dbg(adapter, INTR,
|
|
"info: <--- Tx DONE Interrupt --->\n");
|
|
adapter->data_sent = false;
|
|
}
|
|
}
|
|
|
|
/* As firmware will not generate download ready interrupt if the port
|
|
updated is command port only, cmd_sent should be done for any SDIO
|
|
interrupt. */
|
|
if (card->has_control_mask && adapter->cmd_sent) {
|
|
/* Check if firmware has attach buffer at command port and
|
|
update just that in wr_bit_map. */
|
|
card->mp_wr_bitmap |=
|
|
(u32) card->mp_regs[reg->wr_bitmap_l] & CTRL_PORT_MASK;
|
|
if (card->mp_wr_bitmap & CTRL_PORT_MASK)
|
|
adapter->cmd_sent = false;
|
|
}
|
|
|
|
mwifiex_dbg(adapter, INTR, "info: cmd_sent=%d data_sent=%d\n",
|
|
adapter->cmd_sent, adapter->data_sent);
|
|
if (sdio_ireg & UP_LD_HOST_INT_STATUS) {
|
|
bitmap = (u32) card->mp_regs[reg->rd_bitmap_l];
|
|
bitmap |= ((u32) card->mp_regs[reg->rd_bitmap_u]) << 8;
|
|
if (card->supports_sdio_new_mode) {
|
|
bitmap |=
|
|
((u32) card->mp_regs[reg->rd_bitmap_1l]) << 16;
|
|
bitmap |=
|
|
((u32) card->mp_regs[reg->rd_bitmap_1u]) << 24;
|
|
}
|
|
card->mp_rd_bitmap = bitmap;
|
|
mwifiex_dbg(adapter, INTR,
|
|
"int: UPLD: rd_bitmap=0x%x\n",
|
|
card->mp_rd_bitmap);
|
|
|
|
while (true) {
|
|
ret = mwifiex_get_rd_port(adapter, &port);
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, INFO,
|
|
"info: no more rd_port available\n");
|
|
break;
|
|
}
|
|
len_reg_l = reg->rd_len_p0_l + (port << 1);
|
|
len_reg_u = reg->rd_len_p0_u + (port << 1);
|
|
rx_len = ((u16) card->mp_regs[len_reg_u]) << 8;
|
|
rx_len |= (u16) card->mp_regs[len_reg_l];
|
|
mwifiex_dbg(adapter, INFO,
|
|
"info: RX: port=%d rx_len=%u\n",
|
|
port, rx_len);
|
|
rx_blocks =
|
|
(rx_len + MWIFIEX_SDIO_BLOCK_SIZE -
|
|
1) / MWIFIEX_SDIO_BLOCK_SIZE;
|
|
if (rx_len <= INTF_HEADER_LEN ||
|
|
(rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) >
|
|
card->mpa_rx.buf_size) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"invalid rx_len=%d\n",
|
|
rx_len);
|
|
return -1;
|
|
}
|
|
|
|
rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE);
|
|
mwifiex_dbg(adapter, INFO, "info: rx_len = %d\n",
|
|
rx_len);
|
|
|
|
if (mwifiex_sdio_card_to_host_mp_aggr(adapter, rx_len,
|
|
port)) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"card_to_host_mpa failed: int status=%#x\n",
|
|
sdio_ireg);
|
|
goto term_cmd;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
term_cmd:
|
|
/* terminate cmd */
|
|
if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr))
|
|
mwifiex_dbg(adapter, ERROR, "read CFG reg failed\n");
|
|
else
|
|
mwifiex_dbg(adapter, INFO,
|
|
"info: CFG reg val = %d\n", cr);
|
|
|
|
if (mwifiex_write_reg(adapter, CONFIGURATION_REG, (cr | 0x04)))
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"write CFG reg failed\n");
|
|
else
|
|
mwifiex_dbg(adapter, INFO, "info: write success\n");
|
|
|
|
if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr))
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"read CFG reg failed\n");
|
|
else
|
|
mwifiex_dbg(adapter, INFO,
|
|
"info: CFG reg val =%x\n", cr);
|
|
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* This function aggregates transmission buffers in driver and downloads
|
|
* the aggregated packet to card.
|
|
*
|
|
* The individual packets are aggregated by copying into an aggregation
|
|
* buffer and then downloaded to the card. Previous unsent packets in the
|
|
* aggregation buffer are pre-copied first before new packets are added.
|
|
* Aggregation is done till there is space left in the aggregation buffer,
|
|
* or till new packets are available.
|
|
*
|
|
* The function will only download the packet to the card when aggregation
|
|
* stops, otherwise it will just aggregate the packet in aggregation buffer
|
|
* and return.
|
|
*/
|
|
static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
|
|
u8 *payload, u32 pkt_len, u32 port,
|
|
u32 next_pkt_len)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
int ret = 0;
|
|
s32 f_send_aggr_buf = 0;
|
|
s32 f_send_cur_buf = 0;
|
|
s32 f_precopy_cur_buf = 0;
|
|
s32 f_postcopy_cur_buf = 0;
|
|
u32 mport;
|
|
|
|
if (!card->mpa_tx.enabled ||
|
|
(card->has_control_mask && (port == CTRL_PORT)) ||
|
|
(card->supports_sdio_new_mode && (port == CMD_PORT_SLCT))) {
|
|
mwifiex_dbg(adapter, WARN,
|
|
"info: %s: tx aggregation disabled\n",
|
|
__func__);
|
|
|
|
f_send_cur_buf = 1;
|
|
goto tx_curr_single;
|
|
}
|
|
|
|
if (next_pkt_len) {
|
|
/* More pkt in TX queue */
|
|
mwifiex_dbg(adapter, INFO,
|
|
"info: %s: more packets in queue.\n",
|
|
__func__);
|
|
|
|
if (MP_TX_AGGR_IN_PROGRESS(card)) {
|
|
if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) {
|
|
f_precopy_cur_buf = 1;
|
|
|
|
if (!(card->mp_wr_bitmap &
|
|
(1 << card->curr_wr_port)) ||
|
|
!MP_TX_AGGR_BUF_HAS_ROOM(
|
|
card, pkt_len + next_pkt_len))
|
|
f_send_aggr_buf = 1;
|
|
} else {
|
|
/* No room in Aggr buf, send it */
|
|
f_send_aggr_buf = 1;
|
|
|
|
if (!(card->mp_wr_bitmap &
|
|
(1 << card->curr_wr_port)))
|
|
f_send_cur_buf = 1;
|
|
else
|
|
f_postcopy_cur_buf = 1;
|
|
}
|
|
} else {
|
|
if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len) &&
|
|
(card->mp_wr_bitmap & (1 << card->curr_wr_port)))
|
|
f_precopy_cur_buf = 1;
|
|
else
|
|
f_send_cur_buf = 1;
|
|
}
|
|
} else {
|
|
/* Last pkt in TX queue */
|
|
mwifiex_dbg(adapter, INFO,
|
|
"info: %s: Last packet in Tx Queue.\n",
|
|
__func__);
|
|
|
|
if (MP_TX_AGGR_IN_PROGRESS(card)) {
|
|
/* some packs in Aggr buf already */
|
|
f_send_aggr_buf = 1;
|
|
|
|
if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len))
|
|
f_precopy_cur_buf = 1;
|
|
else
|
|
/* No room in Aggr buf, send it */
|
|
f_send_cur_buf = 1;
|
|
} else {
|
|
f_send_cur_buf = 1;
|
|
}
|
|
}
|
|
|
|
if (f_precopy_cur_buf) {
|
|
mwifiex_dbg(adapter, DATA,
|
|
"data: %s: precopy current buffer\n",
|
|
__func__);
|
|
MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port);
|
|
|
|
if (MP_TX_AGGR_PKT_LIMIT_REACHED(card) ||
|
|
mp_tx_aggr_port_limit_reached(card))
|
|
/* No more pkts allowed in Aggr buf, send it */
|
|
f_send_aggr_buf = 1;
|
|
}
|
|
|
|
if (f_send_aggr_buf) {
|
|
mwifiex_dbg(adapter, DATA,
|
|
"data: %s: send aggr buffer: %d %d\n",
|
|
__func__, card->mpa_tx.start_port,
|
|
card->mpa_tx.ports);
|
|
if (card->supports_sdio_new_mode) {
|
|
u32 port_count;
|
|
int i;
|
|
|
|
for (i = 0, port_count = 0; i < card->max_ports; i++)
|
|
if (card->mpa_tx.ports & BIT(i))
|
|
port_count++;
|
|
|
|
/* Writing data from "start_port + 0" to "start_port +
|
|
* port_count -1", so decrease the count by 1
|
|
*/
|
|
port_count--;
|
|
mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
|
|
(port_count << 8)) + card->mpa_tx.start_port;
|
|
} else {
|
|
mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
|
|
(card->mpa_tx.ports << 4)) +
|
|
card->mpa_tx.start_port;
|
|
}
|
|
|
|
ret = mwifiex_write_data_to_card(adapter, card->mpa_tx.buf,
|
|
card->mpa_tx.buf_len, mport);
|
|
|
|
MP_TX_AGGR_BUF_RESET(card);
|
|
}
|
|
|
|
tx_curr_single:
|
|
if (f_send_cur_buf) {
|
|
mwifiex_dbg(adapter, DATA,
|
|
"data: %s: send current buffer %d\n",
|
|
__func__, port);
|
|
ret = mwifiex_write_data_to_card(adapter, payload, pkt_len,
|
|
adapter->ioport + port);
|
|
}
|
|
|
|
if (f_postcopy_cur_buf) {
|
|
mwifiex_dbg(adapter, DATA,
|
|
"data: %s: postcopy current buffer\n",
|
|
__func__);
|
|
MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* This function downloads data from driver to card.
|
|
*
|
|
* Both commands and data packets are transferred to the card by this
|
|
* function.
|
|
*
|
|
* This function adds the SDIO specific header to the front of the buffer
|
|
* before transferring. The header contains the length of the packet and
|
|
* the type. The firmware handles the packets based upon this set type.
|
|
*/
|
|
static int mwifiex_sdio_host_to_card(struct mwifiex_adapter *adapter,
|
|
u8 type, struct sk_buff *skb,
|
|
struct mwifiex_tx_param *tx_param)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
int ret;
|
|
u32 buf_block_len;
|
|
u32 blk_size;
|
|
u32 port = CTRL_PORT;
|
|
u8 *payload = (u8 *)skb->data;
|
|
u32 pkt_len = skb->len;
|
|
|
|
/* Allocate buffer and copy payload */
|
|
blk_size = MWIFIEX_SDIO_BLOCK_SIZE;
|
|
buf_block_len = (pkt_len + blk_size - 1) / blk_size;
|
|
*(__le16 *)&payload[0] = cpu_to_le16((u16)pkt_len);
|
|
*(__le16 *)&payload[2] = cpu_to_le16(type);
|
|
|
|
/*
|
|
* This is SDIO specific header
|
|
* u16 length,
|
|
* u16 type (MWIFIEX_TYPE_DATA = 0, MWIFIEX_TYPE_CMD = 1,
|
|
* MWIFIEX_TYPE_EVENT = 3)
|
|
*/
|
|
if (type == MWIFIEX_TYPE_DATA) {
|
|
ret = mwifiex_get_wr_port_data(adapter, &port);
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"%s: no wr_port available\n",
|
|
__func__);
|
|
return ret;
|
|
}
|
|
} else {
|
|
adapter->cmd_sent = true;
|
|
/* Type must be MWIFIEX_TYPE_CMD */
|
|
|
|
if (pkt_len <= INTF_HEADER_LEN ||
|
|
pkt_len > MWIFIEX_UPLD_SIZE)
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"%s: payload=%p, nb=%d\n",
|
|
__func__, payload, pkt_len);
|
|
|
|
if (card->supports_sdio_new_mode)
|
|
port = CMD_PORT_SLCT;
|
|
}
|
|
|
|
/* Transfer data to card */
|
|
pkt_len = buf_block_len * blk_size;
|
|
|
|
if (tx_param)
|
|
ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len,
|
|
port, tx_param->next_pkt_len
|
|
);
|
|
else
|
|
ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len,
|
|
port, 0);
|
|
|
|
if (ret) {
|
|
if (type == MWIFIEX_TYPE_CMD)
|
|
adapter->cmd_sent = false;
|
|
if (type == MWIFIEX_TYPE_DATA) {
|
|
adapter->data_sent = false;
|
|
/* restore curr_wr_port in error cases */
|
|
card->curr_wr_port = port;
|
|
card->mp_wr_bitmap |= (u32)(1 << card->curr_wr_port);
|
|
}
|
|
} else {
|
|
if (type == MWIFIEX_TYPE_DATA) {
|
|
if (!(card->mp_wr_bitmap & (1 << card->curr_wr_port)))
|
|
adapter->data_sent = true;
|
|
else
|
|
adapter->data_sent = false;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* This function allocates the MPA Tx and Rx buffers.
|
|
*/
|
|
static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter *adapter,
|
|
u32 mpa_tx_buf_size, u32 mpa_rx_buf_size)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
u32 rx_buf_size;
|
|
int ret = 0;
|
|
|
|
card->mpa_tx.buf = kzalloc(mpa_tx_buf_size, GFP_KERNEL);
|
|
if (!card->mpa_tx.buf) {
|
|
ret = -1;
|
|
goto error;
|
|
}
|
|
|
|
card->mpa_tx.buf_size = mpa_tx_buf_size;
|
|
|
|
rx_buf_size = max_t(u32, mpa_rx_buf_size,
|
|
(u32)SDIO_MAX_AGGR_BUF_SIZE);
|
|
card->mpa_rx.buf = kzalloc(rx_buf_size, GFP_KERNEL);
|
|
if (!card->mpa_rx.buf) {
|
|
ret = -1;
|
|
goto error;
|
|
}
|
|
|
|
card->mpa_rx.buf_size = rx_buf_size;
|
|
|
|
error:
|
|
if (ret) {
|
|
kfree(card->mpa_tx.buf);
|
|
kfree(card->mpa_rx.buf);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* This function unregisters the SDIO device.
|
|
*
|
|
* The SDIO IRQ is released, the function is disabled and driver
|
|
* data is set to null.
|
|
*/
|
|
static void
|
|
mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
if (adapter->card) {
|
|
sdio_claim_host(card->func);
|
|
sdio_disable_func(card->func);
|
|
sdio_release_host(card->func);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* This function registers the SDIO device.
|
|
*
|
|
* SDIO IRQ is claimed, block size is set and driver data is initialized.
|
|
*/
|
|
static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
|
|
{
|
|
int ret;
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
struct sdio_func *func = card->func;
|
|
|
|
/* save adapter pointer in card */
|
|
card->adapter = adapter;
|
|
adapter->tx_buf_size = card->tx_buf_size;
|
|
|
|
sdio_claim_host(func);
|
|
|
|
/* Set block size */
|
|
ret = sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE);
|
|
sdio_release_host(func);
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"cannot set SDIO block size\n");
|
|
return ret;
|
|
}
|
|
|
|
|
|
adapter->dev = &func->dev;
|
|
|
|
strcpy(adapter->fw_name, card->firmware);
|
|
adapter->mem_type_mapping_tbl = mem_type_mapping_tbl;
|
|
adapter->num_mem_types = ARRAY_SIZE(mem_type_mapping_tbl);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This function initializes the SDIO driver.
|
|
*
|
|
* The following initializations steps are followed -
|
|
* - Read the Host interrupt status register to acknowledge
|
|
* the first interrupt got from bootloader
|
|
* - Disable host interrupt mask register
|
|
* - Get SDIO port
|
|
* - Initialize SDIO variables in card
|
|
* - Allocate MP registers
|
|
* - Allocate MPA Tx and Rx buffers
|
|
*/
|
|
static int mwifiex_init_sdio(struct mwifiex_adapter *adapter)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
const struct mwifiex_sdio_card_reg *reg = card->reg;
|
|
int ret;
|
|
u8 sdio_ireg;
|
|
|
|
sdio_set_drvdata(card->func, card);
|
|
|
|
/*
|
|
* Read the host_int_status_reg for ACK the first interrupt got
|
|
* from the bootloader. If we don't do this we get a interrupt
|
|
* as soon as we register the irq.
|
|
*/
|
|
mwifiex_read_reg(adapter, card->reg->host_int_status_reg, &sdio_ireg);
|
|
|
|
/* Get SDIO ioport */
|
|
mwifiex_init_sdio_ioport(adapter);
|
|
|
|
/* Initialize SDIO variables in card */
|
|
card->mp_rd_bitmap = 0;
|
|
card->mp_wr_bitmap = 0;
|
|
card->curr_rd_port = reg->start_rd_port;
|
|
card->curr_wr_port = reg->start_wr_port;
|
|
|
|
card->mp_data_port_mask = reg->data_port_mask;
|
|
|
|
card->mpa_tx.buf_len = 0;
|
|
card->mpa_tx.pkt_cnt = 0;
|
|
card->mpa_tx.start_port = 0;
|
|
|
|
card->mpa_tx.enabled = 1;
|
|
card->mpa_tx.pkt_aggr_limit = card->mp_agg_pkt_limit;
|
|
|
|
card->mpa_rx.buf_len = 0;
|
|
card->mpa_rx.pkt_cnt = 0;
|
|
card->mpa_rx.start_port = 0;
|
|
|
|
card->mpa_rx.enabled = 1;
|
|
card->mpa_rx.pkt_aggr_limit = card->mp_agg_pkt_limit;
|
|
|
|
/* Allocate buffers for SDIO MP-A */
|
|
card->mp_regs = kzalloc(reg->max_mp_regs, GFP_KERNEL);
|
|
if (!card->mp_regs)
|
|
return -ENOMEM;
|
|
|
|
/* Allocate skb pointer buffers */
|
|
card->mpa_rx.skb_arr = kzalloc((sizeof(void *)) *
|
|
card->mp_agg_pkt_limit, GFP_KERNEL);
|
|
card->mpa_rx.len_arr = kzalloc(sizeof(*card->mpa_rx.len_arr) *
|
|
card->mp_agg_pkt_limit, GFP_KERNEL);
|
|
ret = mwifiex_alloc_sdio_mpa_buffers(adapter,
|
|
card->mp_tx_agg_buf_size,
|
|
card->mp_rx_agg_buf_size);
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"failed to alloc sdio mp-a buffers\n");
|
|
kfree(card->mp_regs);
|
|
return -1;
|
|
}
|
|
|
|
adapter->auto_tdls = card->can_auto_tdls;
|
|
adapter->ext_scan = card->can_ext_scan;
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* This function resets the MPA Tx and Rx buffers.
|
|
*/
|
|
static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter *adapter)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
MP_TX_AGGR_BUF_RESET(card);
|
|
MP_RX_AGGR_BUF_RESET(card);
|
|
}
|
|
|
|
/*
|
|
* This function cleans up the allocated card buffers.
|
|
*
|
|
* The following are freed by this function -
|
|
* - MP registers
|
|
* - MPA Tx buffer
|
|
* - MPA Rx buffer
|
|
*/
|
|
static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
kfree(card->mp_regs);
|
|
kfree(card->mpa_rx.skb_arr);
|
|
kfree(card->mpa_rx.len_arr);
|
|
kfree(card->mpa_tx.buf);
|
|
kfree(card->mpa_rx.buf);
|
|
sdio_set_drvdata(card->func, NULL);
|
|
kfree(card);
|
|
}
|
|
|
|
/*
|
|
* This function updates the MP end port in card.
|
|
*/
|
|
static void
|
|
mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
const struct mwifiex_sdio_card_reg *reg = card->reg;
|
|
int i;
|
|
|
|
card->mp_end_port = port;
|
|
|
|
card->mp_data_port_mask = reg->data_port_mask;
|
|
|
|
if (reg->start_wr_port) {
|
|
for (i = 1; i <= card->max_ports - card->mp_end_port; i++)
|
|
card->mp_data_port_mask &=
|
|
~(1 << (card->max_ports - i));
|
|
}
|
|
|
|
card->curr_wr_port = reg->start_wr_port;
|
|
|
|
mwifiex_dbg(adapter, CMD,
|
|
"cmd: mp_end_port %d, data port mask 0x%x\n",
|
|
port, card->mp_data_port_mask);
|
|
}
|
|
|
|
static struct mwifiex_adapter *save_adapter;
|
|
static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter *adapter)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
struct mmc_host *target = card->func->card->host;
|
|
|
|
/* The actual reset operation must be run outside of driver thread.
|
|
* This is because mmc_remove_host() will cause the device to be
|
|
* instantly destroyed, and the driver then needs to end its thread,
|
|
* leading to a deadlock.
|
|
*
|
|
* We run it in a totally independent workqueue.
|
|
*/
|
|
|
|
mwifiex_dbg(adapter, WARN, "Resetting card...\n");
|
|
mmc_remove_host(target);
|
|
/* 200ms delay is based on experiment with sdhci controller */
|
|
mdelay(200);
|
|
target->rescan_entered = 0; /* rescan non-removable cards */
|
|
mmc_add_host(target);
|
|
}
|
|
|
|
/* This function read/write firmware */
|
|
static enum
|
|
rdwr_status mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter *adapter,
|
|
u8 doneflag)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
int ret, tries;
|
|
u8 ctrl_data = 0;
|
|
|
|
sdio_writeb(card->func, FW_DUMP_HOST_READY, card->reg->fw_dump_ctrl,
|
|
&ret);
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, ERROR, "SDIO Write ERR\n");
|
|
return RDWR_STATUS_FAILURE;
|
|
}
|
|
for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
|
|
ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl,
|
|
&ret);
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, ERROR, "SDIO read err\n");
|
|
return RDWR_STATUS_FAILURE;
|
|
}
|
|
if (ctrl_data == FW_DUMP_DONE)
|
|
break;
|
|
if (doneflag && ctrl_data == doneflag)
|
|
return RDWR_STATUS_DONE;
|
|
if (ctrl_data != FW_DUMP_HOST_READY) {
|
|
mwifiex_dbg(adapter, WARN,
|
|
"The ctrl reg was changed, re-try again!\n");
|
|
sdio_writeb(card->func, FW_DUMP_HOST_READY,
|
|
card->reg->fw_dump_ctrl, &ret);
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, ERROR, "SDIO write err\n");
|
|
return RDWR_STATUS_FAILURE;
|
|
}
|
|
}
|
|
usleep_range(100, 200);
|
|
}
|
|
if (ctrl_data == FW_DUMP_HOST_READY) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"Fail to pull ctrl_data\n");
|
|
return RDWR_STATUS_FAILURE;
|
|
}
|
|
|
|
return RDWR_STATUS_SUCCESS;
|
|
}
|
|
|
|
/* This function dump firmware memory to file */
|
|
static void mwifiex_sdio_fw_dump(struct mwifiex_adapter *adapter)
|
|
{
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
int ret = 0;
|
|
unsigned int reg, reg_start, reg_end;
|
|
u8 *dbg_ptr, *end_ptr, dump_num, idx, i, read_reg, doneflag = 0;
|
|
enum rdwr_status stat;
|
|
u32 memory_size;
|
|
|
|
if (!card->can_dump_fw)
|
|
return;
|
|
|
|
for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) {
|
|
struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
|
|
|
|
if (entry->mem_ptr) {
|
|
vfree(entry->mem_ptr);
|
|
entry->mem_ptr = NULL;
|
|
}
|
|
entry->mem_size = 0;
|
|
}
|
|
|
|
mwifiex_pm_wakeup_card(adapter);
|
|
sdio_claim_host(card->func);
|
|
|
|
mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump start ==\n");
|
|
|
|
stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
|
|
if (stat == RDWR_STATUS_FAILURE)
|
|
goto done;
|
|
|
|
reg = card->reg->fw_dump_start;
|
|
/* Read the number of the memories which will dump */
|
|
dump_num = sdio_readb(card->func, reg, &ret);
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, ERROR, "SDIO read memory length err\n");
|
|
goto done;
|
|
}
|
|
|
|
/* Read the length of every memory which will dump */
|
|
for (idx = 0; idx < dump_num; idx++) {
|
|
struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
|
|
|
|
stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
|
|
if (stat == RDWR_STATUS_FAILURE)
|
|
goto done;
|
|
|
|
memory_size = 0;
|
|
reg = card->reg->fw_dump_start;
|
|
for (i = 0; i < 4; i++) {
|
|
read_reg = sdio_readb(card->func, reg, &ret);
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, ERROR, "SDIO read err\n");
|
|
goto done;
|
|
}
|
|
memory_size |= (read_reg << i*8);
|
|
reg++;
|
|
}
|
|
|
|
if (memory_size == 0) {
|
|
mwifiex_dbg(adapter, DUMP, "Firmware dump Finished!\n");
|
|
ret = mwifiex_write_reg(adapter,
|
|
card->reg->fw_dump_ctrl,
|
|
FW_DUMP_READ_DONE);
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, ERROR, "SDIO write err\n");
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
|
|
mwifiex_dbg(adapter, DUMP,
|
|
"%s_SIZE=0x%x\n", entry->mem_name, memory_size);
|
|
entry->mem_ptr = vmalloc(memory_size + 1);
|
|
entry->mem_size = memory_size;
|
|
if (!entry->mem_ptr) {
|
|
mwifiex_dbg(adapter, ERROR, "Vmalloc %s failed\n",
|
|
entry->mem_name);
|
|
goto done;
|
|
}
|
|
dbg_ptr = entry->mem_ptr;
|
|
end_ptr = dbg_ptr + memory_size;
|
|
|
|
doneflag = entry->done_flag;
|
|
mwifiex_dbg(adapter, DUMP,
|
|
"Start %s output, please wait...\n",
|
|
entry->mem_name);
|
|
|
|
do {
|
|
stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
|
|
if (stat == RDWR_STATUS_FAILURE)
|
|
goto done;
|
|
|
|
reg_start = card->reg->fw_dump_start;
|
|
reg_end = card->reg->fw_dump_end;
|
|
for (reg = reg_start; reg <= reg_end; reg++) {
|
|
*dbg_ptr = sdio_readb(card->func, reg, &ret);
|
|
if (ret) {
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"SDIO read err\n");
|
|
goto done;
|
|
}
|
|
if (dbg_ptr < end_ptr)
|
|
dbg_ptr++;
|
|
else
|
|
mwifiex_dbg(adapter, ERROR,
|
|
"Allocated buf not enough\n");
|
|
}
|
|
|
|
if (stat != RDWR_STATUS_DONE)
|
|
continue;
|
|
|
|
mwifiex_dbg(adapter, DUMP, "%s done: size=0x%tx\n",
|
|
entry->mem_name, dbg_ptr - entry->mem_ptr);
|
|
break;
|
|
} while (1);
|
|
}
|
|
mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump end ==\n");
|
|
|
|
done:
|
|
sdio_release_host(card->func);
|
|
}
|
|
|
|
static void mwifiex_sdio_device_dump_work(struct mwifiex_adapter *adapter)
|
|
{
|
|
mwifiex_drv_info_dump(adapter);
|
|
mwifiex_sdio_fw_dump(adapter);
|
|
mwifiex_upload_device_dump(adapter);
|
|
}
|
|
|
|
static void mwifiex_sdio_work(struct work_struct *work)
|
|
{
|
|
if (test_and_clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP,
|
|
&iface_work_flags))
|
|
mwifiex_sdio_device_dump_work(save_adapter);
|
|
if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET,
|
|
&iface_work_flags))
|
|
mwifiex_sdio_card_reset_work(save_adapter);
|
|
}
|
|
|
|
static DECLARE_WORK(sdio_work, mwifiex_sdio_work);
|
|
/* This function resets the card */
|
|
static void mwifiex_sdio_card_reset(struct mwifiex_adapter *adapter)
|
|
{
|
|
save_adapter = adapter;
|
|
if (test_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &iface_work_flags))
|
|
return;
|
|
|
|
set_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &iface_work_flags);
|
|
|
|
schedule_work(&sdio_work);
|
|
}
|
|
|
|
/* This function dumps FW information */
|
|
static void mwifiex_sdio_device_dump(struct mwifiex_adapter *adapter)
|
|
{
|
|
save_adapter = adapter;
|
|
if (test_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, &iface_work_flags))
|
|
return;
|
|
|
|
set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, &iface_work_flags);
|
|
schedule_work(&sdio_work);
|
|
}
|
|
|
|
/* Function to dump SDIO function registers and SDIO scratch registers in case
|
|
* of FW crash
|
|
*/
|
|
static int
|
|
mwifiex_sdio_reg_dump(struct mwifiex_adapter *adapter, char *drv_buf)
|
|
{
|
|
char *p = drv_buf;
|
|
struct sdio_mmc_card *cardp = adapter->card;
|
|
int ret = 0;
|
|
u8 count, func, data, index = 0, size = 0;
|
|
u8 reg, reg_start, reg_end;
|
|
char buf[256], *ptr;
|
|
|
|
if (!p)
|
|
return 0;
|
|
|
|
mwifiex_dbg(adapter, MSG, "SDIO register dump start\n");
|
|
|
|
mwifiex_pm_wakeup_card(adapter);
|
|
|
|
sdio_claim_host(cardp->func);
|
|
|
|
for (count = 0; count < 5; count++) {
|
|
memset(buf, 0, sizeof(buf));
|
|
ptr = buf;
|
|
|
|
switch (count) {
|
|
case 0:
|
|
/* Read the registers of SDIO function0 */
|
|
func = count;
|
|
reg_start = 0;
|
|
reg_end = 9;
|
|
break;
|
|
case 1:
|
|
/* Read the registers of SDIO function1 */
|
|
func = count;
|
|
reg_start = cardp->reg->func1_dump_reg_start;
|
|
reg_end = cardp->reg->func1_dump_reg_end;
|
|
break;
|
|
case 2:
|
|
index = 0;
|
|
func = 1;
|
|
reg_start = cardp->reg->func1_spec_reg_table[index++];
|
|
size = cardp->reg->func1_spec_reg_num;
|
|
reg_end = cardp->reg->func1_spec_reg_table[size-1];
|
|
break;
|
|
default:
|
|
/* Read the scratch registers of SDIO function1 */
|
|
if (count == 4)
|
|
mdelay(100);
|
|
func = 1;
|
|
reg_start = cardp->reg->func1_scratch_reg;
|
|
reg_end = reg_start + MWIFIEX_SDIO_SCRATCH_SIZE;
|
|
}
|
|
|
|
if (count != 2)
|
|
ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ",
|
|
func, reg_start, reg_end);
|
|
else
|
|
ptr += sprintf(ptr, "SDIO Func%d: ", func);
|
|
|
|
for (reg = reg_start; reg <= reg_end;) {
|
|
if (func == 0)
|
|
data = sdio_f0_readb(cardp->func, reg, &ret);
|
|
else
|
|
data = sdio_readb(cardp->func, reg, &ret);
|
|
|
|
if (count == 2)
|
|
ptr += sprintf(ptr, "(%#x) ", reg);
|
|
if (!ret) {
|
|
ptr += sprintf(ptr, "%02x ", data);
|
|
} else {
|
|
ptr += sprintf(ptr, "ERR");
|
|
break;
|
|
}
|
|
|
|
if (count == 2 && reg < reg_end)
|
|
reg = cardp->reg->func1_spec_reg_table[index++];
|
|
else
|
|
reg++;
|
|
}
|
|
|
|
mwifiex_dbg(adapter, MSG, "%s\n", buf);
|
|
p += sprintf(p, "%s\n", buf);
|
|
}
|
|
|
|
sdio_release_host(cardp->func);
|
|
|
|
mwifiex_dbg(adapter, MSG, "SDIO register dump end\n");
|
|
|
|
return p - drv_buf;
|
|
}
|
|
|
|
static struct mwifiex_if_ops sdio_ops = {
|
|
.init_if = mwifiex_init_sdio,
|
|
.cleanup_if = mwifiex_cleanup_sdio,
|
|
.check_fw_status = mwifiex_check_fw_status,
|
|
.prog_fw = mwifiex_prog_fw_w_helper,
|
|
.register_dev = mwifiex_register_dev,
|
|
.unregister_dev = mwifiex_unregister_dev,
|
|
.enable_int = mwifiex_sdio_enable_host_int,
|
|
.disable_int = mwifiex_sdio_disable_host_int,
|
|
.process_int_status = mwifiex_process_int_status,
|
|
.host_to_card = mwifiex_sdio_host_to_card,
|
|
.wakeup = mwifiex_pm_wakeup_card,
|
|
.wakeup_complete = mwifiex_pm_wakeup_card_complete,
|
|
|
|
/* SDIO specific */
|
|
.update_mp_end_port = mwifiex_update_mp_end_port,
|
|
.cleanup_mpa_buf = mwifiex_cleanup_mpa_buf,
|
|
.cmdrsp_complete = mwifiex_sdio_cmdrsp_complete,
|
|
.event_complete = mwifiex_sdio_event_complete,
|
|
.card_reset = mwifiex_sdio_card_reset,
|
|
.reg_dump = mwifiex_sdio_reg_dump,
|
|
.device_dump = mwifiex_sdio_device_dump,
|
|
.deaggr_pkt = mwifiex_deaggr_sdio_pkt,
|
|
};
|
|
|
|
/*
|
|
* This function initializes the SDIO driver.
|
|
*
|
|
* This initiates the semaphore and registers the device with
|
|
* SDIO bus.
|
|
*/
|
|
static int
|
|
mwifiex_sdio_init_module(void)
|
|
{
|
|
sema_init(&add_remove_card_sem, 1);
|
|
|
|
/* Clear the flag in case user removes the card. */
|
|
user_rmmod = 0;
|
|
|
|
return sdio_register_driver(&mwifiex_sdio);
|
|
}
|
|
|
|
/*
|
|
* This function cleans up the SDIO driver.
|
|
*
|
|
* The following major steps are followed for cleanup -
|
|
* - Resume the device if its suspended
|
|
* - Disconnect the device if connected
|
|
* - Shutdown the firmware
|
|
* - Unregister the device from SDIO bus.
|
|
*/
|
|
static void
|
|
mwifiex_sdio_cleanup_module(void)
|
|
{
|
|
if (!down_interruptible(&add_remove_card_sem))
|
|
up(&add_remove_card_sem);
|
|
|
|
/* Set the flag as user is removing this module. */
|
|
user_rmmod = 1;
|
|
cancel_work_sync(&sdio_work);
|
|
|
|
sdio_unregister_driver(&mwifiex_sdio);
|
|
}
|
|
|
|
module_init(mwifiex_sdio_init_module);
|
|
module_exit(mwifiex_sdio_cleanup_module);
|
|
|
|
MODULE_AUTHOR("Marvell International Ltd.");
|
|
MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION);
|
|
MODULE_VERSION(SDIO_VERSION);
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME);
|
|
MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME);
|
|
MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME);
|
|
MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME);
|
|
MODULE_FIRMWARE(SD8887_DEFAULT_FW_NAME);
|