Commit 2cdf359a authored by Amitkumar Karwar's avatar Amitkumar Karwar Committed by John W. Linville

mwifiex: code rearrangement in sdio.c

Some function definitions are moved to appropriate place
to avoid forward declarations.
Signed-off-by: default avatarAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: default avatarBing Zhao <bzhao@marvell.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 6b41f941
......@@ -50,9 +50,6 @@ static struct mwifiex_if_ops sdio_ops;
static struct semaphore add_remove_card_sem;
static int mwifiex_sdio_resume(struct device *dev);
static void mwifiex_sdio_interrupt(struct sdio_func *func);
/*
* SDIO probe.
*
......@@ -112,6 +109,51 @@ mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
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) {
dev_warn(adapter->dev, "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.
*
......@@ -212,51 +254,6 @@ static int mwifiex_sdio_suspend(struct device *dev)
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) {
dev_warn(adapter->dev, "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;
}
/* Device ID for SD8786 */
#define SDIO_DEVICE_ID_MARVELL_8786 (0x9116)
/* Device ID for SD8787 */
......@@ -706,6 +703,65 @@ static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter *adapter)
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)) {
dev_err(adapter->dev, "read mp_regs failed\n");
return;
}
sdio_ireg = card->mp_regs[HOST_INTSTATUS_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
*/
dev_dbg(adapter->dev, "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.
*
......@@ -962,65 +1018,6 @@ static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter,
return ret;
}
/*
* 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)) {
dev_err(adapter->dev, "read mp_regs failed\n");
return;
}
sdio_ireg = card->mp_regs[HOST_INTSTATUS_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
*/
dev_dbg(adapter->dev, "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 decodes a received packet.
*
......
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