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Bcmchar.c
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Bcmchar.c
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#include <linux/fs.h>
#include "headers.h"
static int bcm_handle_nvm_read_cmd(struct bcm_mini_adapter *ad,
PUCHAR read_data,
struct bcm_nvm_readwrite *nvm_rw)
{
INT status = STATUS_FAILURE;
down(&ad->NVMRdmWrmLock);
if ((ad->IdleMode == TRUE) || (ad->bShutStatus == TRUE) ||
(ad->bPreparingForLowPowerMode == TRUE)) {
BCM_DEBUG_PRINT(ad,
DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
"Device is in Idle/Shutdown Mode\n");
up(&ad->NVMRdmWrmLock);
kfree(read_data);
return -EACCES;
}
status = BeceemNVMRead(ad, (PUINT)read_data,
nvm_rw->uiOffset,
nvm_rw->uiNumBytes);
up(&ad->NVMRdmWrmLock);
if (status != STATUS_SUCCESS) {
kfree(read_data);
return status;
}
if (copy_to_user(nvm_rw->pBuffer, read_data, nvm_rw->uiNumBytes)) {
kfree(read_data);
return -EFAULT;
}
return STATUS_SUCCESS;
}
static int handle_flash2x_adapter(struct bcm_mini_adapter *ad,
PUCHAR read_data,
struct bcm_nvm_readwrite *nvm_rw)
{
/*
* New Requirement:-
* DSD section updation will be allowed in two case:-
* 1. if DSD sig is present in DSD header means dongle
* is ok and updation is fruitfull
* 2. if point 1 failes then user buff should have
* DSD sig. this point ensures that if dongle is
* corrupted then user space program first modify
* the DSD header with valid DSD sig so that this
* as well as further write may be worthwhile.
*
* This restriction has been put assuming that
* if DSD sig is corrupted, DSD data won't be
* considered valid.
*/
INT status;
ULONG dsd_magic_num_in_usr_buff = 0;
status = BcmFlash2xCorruptSig(ad, ad->eActiveDSD);
if (status == STATUS_SUCCESS)
return STATUS_SUCCESS;
if (((nvm_rw->uiOffset + nvm_rw->uiNumBytes) !=
ad->uiNVMDSDSize) ||
(nvm_rw->uiNumBytes < SIGNATURE_SIZE)) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
"DSD Sig is present neither in Flash nor User provided Input..");
up(&ad->NVMRdmWrmLock);
kfree(read_data);
return status;
}
dsd_magic_num_in_usr_buff =
ntohl(*(PUINT)(read_data + nvm_rw->uiNumBytes -
SIGNATURE_SIZE));
if (dsd_magic_num_in_usr_buff != DSD_IMAGE_MAGIC_NUMBER) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
"DSD Sig is present neither in Flash nor User provided Input..");
up(&ad->NVMRdmWrmLock);
kfree(read_data);
return status;
}
return STATUS_SUCCESS;
}
/***************************************************************
* Function - bcm_char_open()
*
* Description - This is the "open" entry point for the character
* driver.
*
* Parameters - inode: Pointer to the Inode structure of char device
* filp : File pointer of the char device
*
* Returns - Zero(Success)
****************************************************************/
static int bcm_char_open(struct inode *inode, struct file *filp)
{
struct bcm_mini_adapter *ad = NULL;
struct bcm_tarang_data *tarang = NULL;
ad = GET_BCM_ADAPTER(gblpnetdev);
tarang = kzalloc(sizeof(struct bcm_tarang_data), GFP_KERNEL);
if (!tarang)
return -ENOMEM;
tarang->Adapter = ad;
tarang->RxCntrlMsgBitMask = 0xFFFFFFFF & ~(1 << 0xB);
down(&ad->RxAppControlQueuelock);
tarang->next = ad->pTarangs;
ad->pTarangs = tarang;
up(&ad->RxAppControlQueuelock);
/* Store the Adapter structure */
filp->private_data = tarang;
/* Start Queuing the control response Packets */
atomic_inc(&ad->ApplicationRunning);
nonseekable_open(inode, filp);
return 0;
}
static int bcm_char_release(struct inode *inode, struct file *filp)
{
struct bcm_tarang_data *tarang, *tmp, *ptmp;
struct bcm_mini_adapter *ad = NULL;
struct sk_buff *pkt, *npkt;
tarang = (struct bcm_tarang_data *)filp->private_data;
if (tarang == NULL)
return 0;
ad = tarang->Adapter;
down(&ad->RxAppControlQueuelock);
tmp = ad->pTarangs;
for (ptmp = NULL; tmp; ptmp = tmp, tmp = tmp->next) {
if (tmp == tarang)
break;
}
if (tmp) {
if (!ptmp)
ad->pTarangs = tmp->next;
else
ptmp->next = tmp->next;
} else {
up(&ad->RxAppControlQueuelock);
return 0;
}
pkt = tarang->RxAppControlHead;
while (pkt) {
npkt = pkt->next;
kfree_skb(pkt);
pkt = npkt;
}
up(&ad->RxAppControlQueuelock);
/* Stop Queuing the control response Packets */
atomic_dec(&ad->ApplicationRunning);
kfree(tarang);
/* remove this filp from the asynchronously notified filp's */
filp->private_data = NULL;
return 0;
}
static ssize_t bcm_char_read(struct file *filp,
char __user *buf,
size_t size,
loff_t *f_pos)
{
struct bcm_tarang_data *tarang = filp->private_data;
struct bcm_mini_adapter *ad = tarang->Adapter;
struct sk_buff *packet = NULL;
ssize_t pkt_len = 0;
int wait_ret_val = 0;
unsigned long ret = 0;
wait_ret_val = wait_event_interruptible(
ad->process_read_wait_queue,
(tarang->RxAppControlHead ||
ad->device_removed));
if ((wait_ret_val == -ERESTARTSYS)) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
"Exiting as i've been asked to exit!!!\n");
return wait_ret_val;
}
if (ad->device_removed) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
"Device Removed... Killing the Apps...\n");
return -ENODEV;
}
if (false == ad->fw_download_done)
return -EACCES;
down(&ad->RxAppControlQueuelock);
if (tarang->RxAppControlHead) {
packet = tarang->RxAppControlHead;
DEQUEUEPACKET(tarang->RxAppControlHead,
tarang->RxAppControlTail);
tarang->AppCtrlQueueLen--;
}
up(&ad->RxAppControlQueuelock);
if (packet) {
pkt_len = packet->len;
ret = copy_to_user(buf, packet->data,
min_t(size_t, pkt_len, size));
if (ret) {
dev_kfree_skb(packet);
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"Returning from copy to user failure\n");
return -EFAULT;
}
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
"Read %zd Bytes From Adapter packet = %p by process %d!\n",
pkt_len, packet, current->pid);
dev_kfree_skb(packet);
}
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "<\n");
return pkt_len;
}
static int bcm_char_ioctl_reg_read_private(void __user *argp,
struct bcm_mini_adapter *ad)
{
struct bcm_rdm_buffer rdm_buff = {0};
struct bcm_ioctl_buffer io_buff;
PCHAR temp_buff;
INT status = STATUS_FAILURE;
UINT buff_len;
u16 temp_value;
int bytes;
/* Copy Ioctl Buffer structure */
if (copy_from_user(&io_buff, argp, sizeof(struct bcm_ioctl_buffer)))
return -EFAULT;
if (io_buff.InputLength > sizeof(rdm_buff))
return -EINVAL;
if (copy_from_user(&rdm_buff, io_buff.InputBuffer,
io_buff.InputLength))
return -EFAULT;
if (io_buff.OutputLength > USHRT_MAX ||
io_buff.OutputLength == 0) {
return -EINVAL;
}
buff_len = io_buff.OutputLength;
temp_value = 4 - (buff_len % 4);
buff_len += temp_value % 4;
temp_buff = kmalloc(buff_len, GFP_KERNEL);
if (!temp_buff)
return -ENOMEM;
bytes = rdmalt(ad, (UINT)rdm_buff.Register,
(PUINT)temp_buff, buff_len);
if (bytes > 0) {
status = STATUS_SUCCESS;
if (copy_to_user(io_buff.OutputBuffer, temp_buff, bytes)) {
kfree(temp_buff);
return -EFAULT;
}
} else {
status = bytes;
}
kfree(temp_buff);
return status;
}
static int bcm_char_ioctl_reg_write_private(void __user *argp,
struct bcm_mini_adapter *ad)
{
struct bcm_wrm_buffer wrm_buff = {0};
struct bcm_ioctl_buffer io_buff;
UINT tmp = 0;
INT status;
/* Copy Ioctl Buffer structure */
if (copy_from_user(&io_buff, argp, sizeof(struct bcm_ioctl_buffer)))
return -EFAULT;
if (io_buff.InputLength > sizeof(wrm_buff))
return -EINVAL;
/* Get WrmBuffer structure */
if (copy_from_user(&wrm_buff, io_buff.InputBuffer,
io_buff.InputLength))
return -EFAULT;
tmp = wrm_buff.Register & EEPROM_REJECT_MASK;
if (!((ad->pstargetparams->m_u32Customize) & VSG_MODE) &&
((tmp == EEPROM_REJECT_REG_1) ||
(tmp == EEPROM_REJECT_REG_2) ||
(tmp == EEPROM_REJECT_REG_3) ||
(tmp == EEPROM_REJECT_REG_4))) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"EEPROM Access Denied, not in VSG Mode\n");
return -EFAULT;
}
status = wrmalt(ad, (UINT)wrm_buff.Register,
(PUINT)wrm_buff.Data, sizeof(ULONG));
if (status == STATUS_SUCCESS) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG,
DBG_LVL_ALL, "WRM Done\n");
} else {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG,
DBG_LVL_ALL, "WRM Failed\n");
status = -EFAULT;
}
return status;
}
static int bcm_char_ioctl_eeprom_reg_read(void __user *argp,
struct bcm_mini_adapter *ad)
{
struct bcm_rdm_buffer rdm_buff = {0};
struct bcm_ioctl_buffer io_buff;
PCHAR temp_buff = NULL;
UINT tmp = 0;
INT status;
int bytes;
if ((ad->IdleMode == TRUE) ||
(ad->bShutStatus == TRUE) ||
(ad->bPreparingForLowPowerMode == TRUE)) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"Device in Idle Mode, Blocking Rdms\n");
return -EACCES;
}
/* Copy Ioctl Buffer structure */
if (copy_from_user(&io_buff, argp, sizeof(struct bcm_ioctl_buffer)))
return -EFAULT;
if (io_buff.InputLength > sizeof(rdm_buff))
return -EINVAL;
if (copy_from_user(&rdm_buff, io_buff.InputBuffer,
io_buff.InputLength))
return -EFAULT;
if (io_buff.OutputLength > USHRT_MAX ||
io_buff.OutputLength == 0) {
return -EINVAL;
}
temp_buff = kmalloc(io_buff.OutputLength, GFP_KERNEL);
if (!temp_buff)
return STATUS_FAILURE;
if ((((ULONG)rdm_buff.Register & 0x0F000000) != 0x0F000000) ||
((ULONG)rdm_buff.Register & 0x3)) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"RDM Done On invalid Address : %x Access Denied.\n",
(int)rdm_buff.Register);
kfree(temp_buff);
return -EINVAL;
}
tmp = rdm_buff.Register & EEPROM_REJECT_MASK;
bytes = rdmaltWithLock(ad, (UINT)rdm_buff.Register,
(PUINT)temp_buff, io_buff.OutputLength);
if (bytes > 0) {
status = STATUS_SUCCESS;
if (copy_to_user(io_buff.OutputBuffer, temp_buff, bytes)) {
kfree(temp_buff);
return -EFAULT;
}
} else {
status = bytes;
}
kfree(temp_buff);
return status;
}
static int bcm_char_ioctl_eeprom_reg_write(void __user *argp,
struct bcm_mini_adapter *ad,
UINT cmd)
{
struct bcm_wrm_buffer wrm_buff = {0};
struct bcm_ioctl_buffer io_buff;
UINT tmp = 0;
INT status;
if ((ad->IdleMode == TRUE) ||
(ad->bShutStatus == TRUE) ||
(ad->bPreparingForLowPowerMode == TRUE)) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"Device in Idle Mode, Blocking Wrms\n");
return -EACCES;
}
/* Copy Ioctl Buffer structure */
if (copy_from_user(&io_buff, argp, sizeof(struct bcm_ioctl_buffer)))
return -EFAULT;
if (io_buff.InputLength > sizeof(wrm_buff))
return -EINVAL;
/* Get WrmBuffer structure */
if (copy_from_user(&wrm_buff, io_buff.InputBuffer,
io_buff.InputLength))
return -EFAULT;
if ((((ULONG)wrm_buff.Register & 0x0F000000) != 0x0F000000) ||
((ULONG)wrm_buff.Register & 0x3)) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"WRM Done On invalid Address : %x Access Denied.\n",
(int)wrm_buff.Register);
return -EINVAL;
}
tmp = wrm_buff.Register & EEPROM_REJECT_MASK;
if (!((ad->pstargetparams->m_u32Customize) & VSG_MODE) &&
((tmp == EEPROM_REJECT_REG_1) ||
(tmp == EEPROM_REJECT_REG_2) ||
(tmp == EEPROM_REJECT_REG_3) ||
(tmp == EEPROM_REJECT_REG_4)) &&
(cmd == IOCTL_BCM_REGISTER_WRITE)) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"EEPROM Access Denied, not in VSG Mode\n");
return -EFAULT;
}
status = wrmaltWithLock(ad, (UINT)wrm_buff.Register,
(PUINT)wrm_buff.Data,
wrm_buff.Length);
if (status == STATUS_SUCCESS) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, OSAL_DBG,
DBG_LVL_ALL, "WRM Done\n");
} else {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG,
DBG_LVL_ALL, "WRM Failed\n");
status = -EFAULT;
}
return status;
}
static int bcm_char_ioctl_gpio_set_request(void __user *argp,
struct bcm_mini_adapter *ad)
{
struct bcm_gpio_info gpio_info = {0};
struct bcm_ioctl_buffer io_buff;
UCHAR reset_val[4];
UINT value = 0;
UINT bit = 0;
UINT operation = 0;
INT status;
int bytes;
if ((ad->IdleMode == TRUE) ||
(ad->bShutStatus == TRUE) ||
(ad->bPreparingForLowPowerMode == TRUE)) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG,
DBG_LVL_ALL,
"GPIO Can't be set/clear in Low power Mode");
return -EACCES;
}
if (copy_from_user(&io_buff, argp, sizeof(struct bcm_ioctl_buffer)))
return -EFAULT;
if (io_buff.InputLength > sizeof(gpio_info))
return -EINVAL;
if (copy_from_user(&gpio_info, io_buff.InputBuffer,
io_buff.InputLength))
return -EFAULT;
bit = gpio_info.uiGpioNumber;
operation = gpio_info.uiGpioValue;
value = (1<<bit);
if (IsReqGpioIsLedInNVM(ad, value) == false) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG,
DBG_LVL_ALL,
"Sorry, Requested GPIO<0x%X> is not correspond to LED !!!",
value);
return -EINVAL;
}
/* Set - setting 1 */
if (operation) {
/* Set the gpio output register */
status = wrmaltWithLock(ad,
BCM_GPIO_OUTPUT_SET_REG,
(PUINT)(&value), sizeof(UINT));
if (status == STATUS_SUCCESS) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS,
OSAL_DBG, DBG_LVL_ALL,
"Set the GPIO bit\n");
} else {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS,
OSAL_DBG, DBG_LVL_ALL,
"Failed to set the %dth GPIO\n",
bit);
return status;
}
} else {
/* Set the gpio output register */
status = wrmaltWithLock(ad,
BCM_GPIO_OUTPUT_CLR_REG,
(PUINT)(&value), sizeof(UINT));
if (status == STATUS_SUCCESS) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS,
OSAL_DBG, DBG_LVL_ALL,
"Set the GPIO bit\n");
} else {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS,
OSAL_DBG, DBG_LVL_ALL,
"Failed to clear the %dth GPIO\n",
bit);
return status;
}
}
bytes = rdmaltWithLock(ad, (UINT)GPIO_MODE_REGISTER,
(PUINT)reset_val, sizeof(UINT));
if (bytes < 0) {
status = bytes;
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
"GPIO_MODE_REGISTER read failed");
return status;
}
status = STATUS_SUCCESS;
/* Set the gpio mode register to output */
*(UINT *)reset_val |= (1<<bit);
status = wrmaltWithLock(ad, GPIO_MODE_REGISTER,
(PUINT)reset_val, sizeof(UINT));
if (status == STATUS_SUCCESS) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG,
DBG_LVL_ALL,
"Set the GPIO to output Mode\n");
} else {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG,
DBG_LVL_ALL,
"Failed to put GPIO in Output Mode\n");
}
return status;
}
static int bcm_char_ioctl_led_thread_state_change_req(void __user *argp,
struct bcm_mini_adapter *ad)
{
struct bcm_user_thread_req thread_req = {0};
struct bcm_ioctl_buffer io_buff;
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
"User made LED thread InActive");
if ((ad->IdleMode == TRUE) ||
(ad->bShutStatus == TRUE) ||
(ad->bPreparingForLowPowerMode == TRUE)) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG,
DBG_LVL_ALL,
"GPIO Can't be set/clear in Low power Mode");
return -EACCES;
}
if (copy_from_user(&io_buff, argp, sizeof(struct bcm_ioctl_buffer)))
return -EFAULT;
if (io_buff.InputLength > sizeof(thread_req))
return -EINVAL;
if (copy_from_user(&thread_req, io_buff.InputBuffer,
io_buff.InputLength))
return -EFAULT;
/* if LED thread is running(Actively or Inactively)
* set it state to make inactive
*/
if (ad->LEDInfo.led_thread_running) {
if (thread_req.ThreadState == LED_THREAD_ACTIVATION_REQ) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS,
OSAL_DBG, DBG_LVL_ALL,
"Activating thread req");
ad->DriverState = LED_THREAD_ACTIVE;
} else {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS,
OSAL_DBG, DBG_LVL_ALL,
"DeActivating Thread req.....");
ad->DriverState = LED_THREAD_INACTIVE;
}
/* signal thread. */
wake_up(&ad->LEDInfo.notify_led_event);
}
return STATUS_SUCCESS;
}
static int bcm_char_ioctl_gpio_status_request(void __user *argp,
struct bcm_mini_adapter *ad)
{
struct bcm_gpio_info gpio_info = {0};
struct bcm_ioctl_buffer io_buff;
ULONG bit = 0;
UCHAR read[4];
INT status;
int bytes;
if ((ad->IdleMode == TRUE) ||
(ad->bShutStatus == TRUE) ||
(ad->bPreparingForLowPowerMode == TRUE))
return -EACCES;
if (copy_from_user(&io_buff, argp, sizeof(struct bcm_ioctl_buffer)))
return -EFAULT;
if (io_buff.InputLength > sizeof(gpio_info))
return -EINVAL;
if (copy_from_user(&gpio_info, io_buff.InputBuffer,
io_buff.InputLength))
return -EFAULT;
bit = gpio_info.uiGpioNumber;
/* Set the gpio output register */
bytes = rdmaltWithLock(ad, (UINT)GPIO_PIN_STATE_REGISTER,
(PUINT)read, sizeof(UINT));
if (bytes < 0) {
status = bytes;
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"RDM Failed\n");
return status;
}
status = STATUS_SUCCESS;
return status;
}
static int bcm_char_ioctl_gpio_multi_request(void __user *argp,
struct bcm_mini_adapter *ad)
{
struct bcm_gpio_multi_info gpio_multi_info[MAX_IDX];
struct bcm_gpio_multi_info *pgpio_multi_info =
(struct bcm_gpio_multi_info *)gpio_multi_info;
struct bcm_ioctl_buffer io_buff;
UCHAR reset_val[4];
INT status = STATUS_FAILURE;
int bytes;
memset(pgpio_multi_info, 0,
MAX_IDX * sizeof(struct bcm_gpio_multi_info));
if ((ad->IdleMode == TRUE) ||
(ad->bShutStatus == TRUE) ||
(ad->bPreparingForLowPowerMode == TRUE))
return -EINVAL;
if (copy_from_user(&io_buff, argp, sizeof(struct bcm_ioctl_buffer)))
return -EFAULT;
if (io_buff.InputLength > sizeof(gpio_multi_info))
return -EINVAL;
if (io_buff.OutputLength > sizeof(gpio_multi_info))
io_buff.OutputLength = sizeof(gpio_multi_info);
if (copy_from_user(&gpio_multi_info, io_buff.InputBuffer,
io_buff.InputLength))
return -EFAULT;
if (IsReqGpioIsLedInNVM(ad, pgpio_multi_info[WIMAX_IDX].uiGPIOMask)
== false) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG,
DBG_LVL_ALL,
"Sorry, Requested GPIO<0x%X> is not correspond to NVM LED bit map<0x%X>!!!",
pgpio_multi_info[WIMAX_IDX].uiGPIOMask,
ad->gpioBitMap);
return -EINVAL;
}
/* Set the gpio output register */
if ((pgpio_multi_info[WIMAX_IDX].uiGPIOMask) &
(pgpio_multi_info[WIMAX_IDX].uiGPIOCommand)) {
/* Set 1's in GPIO OUTPUT REGISTER */
*(UINT *)reset_val = pgpio_multi_info[WIMAX_IDX].uiGPIOMask &
pgpio_multi_info[WIMAX_IDX].uiGPIOCommand &
pgpio_multi_info[WIMAX_IDX].uiGPIOValue;
if (*(UINT *) reset_val)
status = wrmaltWithLock(ad,
BCM_GPIO_OUTPUT_SET_REG,
(PUINT)reset_val, sizeof(ULONG));
if (status != STATUS_SUCCESS) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"WRM to BCM_GPIO_OUTPUT_SET_REG Failed.");
return status;
}
/* Clear to 0's in GPIO OUTPUT REGISTER */
*(UINT *)reset_val =
(pgpio_multi_info[WIMAX_IDX].uiGPIOMask &
pgpio_multi_info[WIMAX_IDX].uiGPIOCommand &
(~(pgpio_multi_info[WIMAX_IDX].uiGPIOValue)));
if (*(UINT *) reset_val)
status = wrmaltWithLock(ad,
BCM_GPIO_OUTPUT_CLR_REG, (PUINT)reset_val,
sizeof(ULONG));
if (status != STATUS_SUCCESS) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"WRM to BCM_GPIO_OUTPUT_CLR_REG Failed.");
return status;
}
}
if (pgpio_multi_info[WIMAX_IDX].uiGPIOMask) {
bytes = rdmaltWithLock(ad, (UINT)GPIO_PIN_STATE_REGISTER,
(PUINT)reset_val, sizeof(UINT));
if (bytes < 0) {
status = bytes;
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"RDM to GPIO_PIN_STATE_REGISTER Failed.");
return status;
}
status = STATUS_SUCCESS;
pgpio_multi_info[WIMAX_IDX].uiGPIOValue =
(*(UINT *)reset_val &
pgpio_multi_info[WIMAX_IDX].uiGPIOMask);
}
status = copy_to_user(io_buff.OutputBuffer, &gpio_multi_info,
io_buff.OutputLength);
if (status) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"Failed while copying Content to IOBufer for user space err:%d",
status);
return -EFAULT;
}
return status;
}
static int bcm_char_ioctl_gpio_mode_request(void __user *argp,
struct bcm_mini_adapter *ad)
{
struct bcm_gpio_multi_mode gpio_multi_mode[MAX_IDX];
struct bcm_gpio_multi_mode *pgpio_multi_mode =
(struct bcm_gpio_multi_mode *)gpio_multi_mode;
struct bcm_ioctl_buffer io_buff;
UCHAR reset_val[4];
INT status;
int bytes;
if ((ad->IdleMode == TRUE) ||
(ad->bShutStatus == TRUE) ||
(ad->bPreparingForLowPowerMode == TRUE))
return -EINVAL;
if (copy_from_user(&io_buff, argp, sizeof(struct bcm_ioctl_buffer)))
return -EFAULT;
if (io_buff.InputLength > sizeof(gpio_multi_mode))
return -EINVAL;
if (io_buff.OutputLength > sizeof(gpio_multi_mode))
io_buff.OutputLength = sizeof(gpio_multi_mode);
if (copy_from_user(&gpio_multi_mode, io_buff.InputBuffer,
io_buff.InputLength))
return -EFAULT;
bytes = rdmaltWithLock(ad, (UINT)GPIO_MODE_REGISTER,
(PUINT)reset_val, sizeof(UINT));
if (bytes < 0) {
status = bytes;
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"Read of GPIO_MODE_REGISTER failed");
return status;
}
status = STATUS_SUCCESS;
/* Validating the request */
if (IsReqGpioIsLedInNVM(ad, pgpio_multi_mode[WIMAX_IDX].uiGPIOMask)
== false) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
"Sorry, Requested GPIO<0x%X> is not correspond to NVM LED bit map<0x%X>!!!",
pgpio_multi_mode[WIMAX_IDX].uiGPIOMask,
ad->gpioBitMap);
return -EINVAL;
}
if (pgpio_multi_mode[WIMAX_IDX].uiGPIOMask) {
/* write all OUT's (1's) */
*(UINT *) reset_val |=
(pgpio_multi_mode[WIMAX_IDX].uiGPIOMode &
pgpio_multi_mode[WIMAX_IDX].uiGPIOMask);
/* write all IN's (0's) */
*(UINT *) reset_val &=
~((~pgpio_multi_mode[WIMAX_IDX].uiGPIOMode) &
pgpio_multi_mode[WIMAX_IDX].uiGPIOMask);
/* Currently implemented return the modes of all GPIO's
* else needs to bit AND with mask
*/
pgpio_multi_mode[WIMAX_IDX].uiGPIOMode = *(UINT *)reset_val;
status = wrmaltWithLock(ad, GPIO_MODE_REGISTER,
(PUINT)reset_val, sizeof(ULONG));
if (status == STATUS_SUCCESS) {
BCM_DEBUG_PRINT(ad,
DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
"WRM to GPIO_MODE_REGISTER Done");
} else {
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"WRM to GPIO_MODE_REGISTER Failed");
return -EFAULT;
}
} else {
/* if uiGPIOMask is 0 then return mode register configuration */
pgpio_multi_mode[WIMAX_IDX].uiGPIOMode = *(UINT *)reset_val;
}
status = copy_to_user(io_buff.OutputBuffer, &gpio_multi_mode,
io_buff.OutputLength);
if (status) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"Failed while copying Content to IOBufer for user space err:%d",
status);
return -EFAULT;
}
return status;
}
static int bcm_char_ioctl_misc_request(void __user *argp,
struct bcm_mini_adapter *ad)
{
struct bcm_ioctl_buffer io_buff;
PVOID buff = NULL;
INT status;
/* Copy Ioctl Buffer structure */
if (copy_from_user(&io_buff, argp, sizeof(struct bcm_ioctl_buffer)))
return -EFAULT;
if (io_buff.InputLength < sizeof(struct bcm_link_request))
return -EINVAL;
if (io_buff.InputLength > MAX_CNTL_PKT_SIZE)
return -EINVAL;
buff = memdup_user(io_buff.InputBuffer,
io_buff.InputLength);
if (IS_ERR(buff))
return PTR_ERR(buff);
down(&ad->LowPowerModeSync);
status = wait_event_interruptible_timeout(
ad->lowpower_mode_wait_queue,
!ad->bPreparingForLowPowerMode,
(1 * HZ));
if (status == -ERESTARTSYS)
goto cntrlEnd;
if (ad->bPreparingForLowPowerMode) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
"Preparing Idle Mode is still True - Hence Rejecting control message\n");
status = STATUS_FAILURE;
goto cntrlEnd;
}
status = CopyBufferToControlPacket(ad, (PVOID)buff);
cntrlEnd:
up(&ad->LowPowerModeSync);
kfree(buff);
return status;
}
static int bcm_char_ioctl_buffer_download_start(
struct bcm_mini_adapter *ad)
{
INT status;
if (down_trylock(&ad->NVMRdmWrmLock)) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
"IOCTL_BCM_CHIP_RESET not allowed as EEPROM Read/Write is in progress\n");
return -EACCES;
}
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"Starting the firmware download PID =0x%x!!!!\n",
current->pid);
if (down_trylock(&ad->fw_download_sema))
return -EBUSY;
ad->bBinDownloaded = false;
ad->fw_download_process_pid = current->pid;
ad->bCfgDownloaded = false;
ad->fw_download_done = false;
netif_carrier_off(ad->dev);
netif_stop_queue(ad->dev);
status = reset_card_proc(ad);
if (status) {
pr_err(PFX "%s: reset_card_proc Failed!\n", ad->dev->name);
up(&ad->fw_download_sema);
up(&ad->NVMRdmWrmLock);
return status;
}
mdelay(10);
up(&ad->NVMRdmWrmLock);
return status;
}
static int bcm_char_ioctl_buffer_download(void __user *argp,
struct bcm_mini_adapter *ad)
{
struct bcm_firmware_info *fw_info = NULL;
struct bcm_ioctl_buffer io_buff;
INT status;
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"Starting the firmware download PID =0x%x!!!!\n", current->pid);
if (!down_trylock(&ad->fw_download_sema)) {
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"Invalid way to download buffer. Use Start and then call this!!!\n");
up(&ad->fw_download_sema);
return -EINVAL;
}
/* Copy Ioctl Buffer structure */
if (copy_from_user(&io_buff, argp, sizeof(struct bcm_ioctl_buffer))) {
up(&ad->fw_download_sema);
return -EFAULT;
}
BCM_DEBUG_PRINT(ad, DBG_TYPE_PRINTK, 0, 0,
"Length for FW DLD is : %lx\n", io_buff.InputLength);
if (io_buff.InputLength > sizeof(struct bcm_firmware_info)) {
up(&ad->fw_download_sema);
return -EINVAL;
}
fw_info = kmalloc(sizeof(*fw_info), GFP_KERNEL);
if (!fw_info) {
up(&ad->fw_download_sema);
return -ENOMEM;
}
if (copy_from_user(fw_info, io_buff.InputBuffer,
io_buff.InputLength)) {
up(&ad->fw_download_sema);
kfree(fw_info);