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staging/bcm: move IOCTL_BCM_EEPROM_REGISTER_WRITE case out to its own function.

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bcm_char_ioctl is one of the longest non-generated functions in the kernel,
at 1906 lines.  Splitting it up into multiple functions should simplify
this a lot.

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dave Jones 2014-02-13 14:45:21 -05:00 committed by Greg Kroah-Hartman
parent 3195d4e0d9
commit 4d4b00a968
1 changed files with 67 additions and 59 deletions
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126
drivers/staging/bcm/Bcmchar.c
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@ -310,6 +310,70 @@ static int bcm_char_ioctl_eeprom_reg_read(void __user *argp, struct bcm_mini_ada
return Status;
}
static int bcm_char_ioctl_eeprom_reg_write(void __user *argp, struct bcm_mini_adapter *Adapter, UINT cmd)
{
struct bcm_wrm_buffer sWrmBuffer = {0};
struct bcm_ioctl_buffer IoBuffer;
UINT uiTempVar = 0;
INT Status;
if ((Adapter->IdleMode == TRUE) ||
(Adapter->bShutStatus == TRUE) ||
(Adapter->bPreparingForLowPowerMode == TRUE)) {
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
"Device in Idle Mode, Blocking Wrms\n");
return -EACCES;
}
/* Copy Ioctl Buffer structure */
if (copy_from_user(&IoBuffer, argp, sizeof(struct bcm_ioctl_buffer)))
return -EFAULT;
if (IoBuffer.InputLength > sizeof(sWrmBuffer))
return -EINVAL;
/* Get WrmBuffer structure */
if (copy_from_user(&sWrmBuffer, IoBuffer.InputBuffer, IoBuffer.InputLength))
return -EFAULT;
if ((((ULONG)sWrmBuffer.Register & 0x0F000000) != 0x0F000000) ||
((ULONG)sWrmBuffer.Register & 0x3)) {
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
"WRM Done On invalid Address : %x Access Denied.\n",
(int)sWrmBuffer.Register);
return -EINVAL;
}
uiTempVar = sWrmBuffer.Register & EEPROM_REJECT_MASK;
if (!((Adapter->pstargetparams->m_u32Customize) & VSG_MODE) &&
((uiTempVar == EEPROM_REJECT_REG_1) ||
(uiTempVar == EEPROM_REJECT_REG_2) ||
(uiTempVar == EEPROM_REJECT_REG_3) ||
(uiTempVar == EEPROM_REJECT_REG_4)) &&
(cmd == IOCTL_BCM_REGISTER_WRITE)) {
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
"EEPROM Access Denied, not in VSG Mode\n");
return -EFAULT;
}
Status = wrmaltWithLock(Adapter, (UINT)sWrmBuffer.Register,
(PUINT)sWrmBuffer.Data,
sWrmBuffer.Length);
if (Status == STATUS_SUCCESS) {
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, OSAL_DBG,
DBG_LVL_ALL, "WRM Done\n");
} else {
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG,
DBG_LVL_ALL, "WRM Failed\n");
Status = -EFAULT;
}
return Status;
}
static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
{
struct bcm_tarang_data *pTarang = filp->private_data;
@ -375,66 +439,10 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
return Status;
case IOCTL_BCM_REGISTER_WRITE:
case IOCTL_BCM_EEPROM_REGISTER_WRITE: {
struct bcm_wrm_buffer sWrmBuffer = {0};
UINT uiTempVar = 0;
case IOCTL_BCM_EEPROM_REGISTER_WRITE:
Status = bcm_char_ioctl_eeprom_reg_write(argp, Adapter, cmd);
return Status;
if ((Adapter->IdleMode == TRUE) ||
(Adapter->bShutStatus == TRUE) ||
(Adapter->bPreparingForLowPowerMode == TRUE)) {
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
"Device in Idle Mode, Blocking Wrms\n");
return -EACCES;
}
/* Copy Ioctl Buffer structure */
if (copy_from_user(&IoBuffer, argp, sizeof(struct bcm_ioctl_buffer)))
return -EFAULT;
if (IoBuffer.InputLength > sizeof(sWrmBuffer))
return -EINVAL;
/* Get WrmBuffer structure */
if (copy_from_user(&sWrmBuffer, IoBuffer.InputBuffer, IoBuffer.InputLength))
return -EFAULT;
if ((((ULONG)sWrmBuffer.Register & 0x0F000000) != 0x0F000000) ||
((ULONG)sWrmBuffer.Register & 0x3)) {
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
"WRM Done On invalid Address : %x Access Denied.\n",
(int)sWrmBuffer.Register);
return -EINVAL;
}
uiTempVar = sWrmBuffer.Register & EEPROM_REJECT_MASK;
if (!((Adapter->pstargetparams->m_u32Customize) & VSG_MODE) &&
((uiTempVar == EEPROM_REJECT_REG_1) ||
(uiTempVar == EEPROM_REJECT_REG_2) ||
(uiTempVar == EEPROM_REJECT_REG_3) ||
(uiTempVar == EEPROM_REJECT_REG_4)) &&
(cmd == IOCTL_BCM_REGISTER_WRITE)) {
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
"EEPROM Access Denied, not in VSG Mode\n");
return -EFAULT;
}
Status = wrmaltWithLock(Adapter, (UINT)sWrmBuffer.Register,
(PUINT)sWrmBuffer.Data,
sWrmBuffer.Length);
if (Status == STATUS_SUCCESS) {
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, OSAL_DBG,
DBG_LVL_ALL, "WRM Done\n");
} else {
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG,
DBG_LVL_ALL, "WRM Failed\n");
Status = -EFAULT;
}
break;
}
case IOCTL_BCM_GPIO_SET_REQUEST: {
UCHAR ucResetValue[4];
UINT value = 0;