/**
@brief wpalReadDeviceMemory provides a mechansim for a client
to read data from the hardware address space
@param address: Start address of physical memory to be read
@param d_buffer: Virtual destination address to which the
data will be written
@param len: Number of bytes of data to be read
@return SUCCESS if the data was successfully read
*/
wpt_status wpalReadDeviceMemory
(
wpt_uint32 address,
wpt_uint8* d_buffer,
wpt_uint32 len
)
{
/* if SSR is in progress, and WCNSS is not out of reset (re-init
* not invoked), then do not access WCNSS registers */
if (NULL == gpEnv ||
(vos_is_logp_in_progress(VOS_MODULE_ID_WDI, NULL) &&
!vos_is_reinit_in_progress(VOS_MODULE_ID_WDI, NULL))) {
WPAL_TRACE(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_ERROR,
"%s: invoked before subsystem initialized",
__func__);
return eWLAN_PAL_STATUS_E_INVAL;
}
if ((address < gpEnv->wcnss_memory->start) ||
((address + len) > gpEnv->wcnss_memory->end)) {
WPAL_TRACE(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_ERROR,
"%s: Memory address 0x%0x len %d out of range 0x%0x - 0x%0x",
__func__, address, len,
(u32) gpEnv->wcnss_memory->start,
(u32) gpEnv->wcnss_memory->end);
return eWLAN_PAL_STATUS_E_INVAL;
}
memcpy(d_buffer, gpEnv->mmio + (address - WCNSS_BASE_ADDRESS), len);
rmb();
return eWLAN_PAL_STATUS_SUCCESS;
}
/**
@brief wpalReadDeviceMemory provides a mechansim for a client
to read data from the hardware address space
@param address: Start address of physical memory to be read
@param d_buffer: Virtual destination address to which the
data will be written
@param len: Number of bytes of data to be read
@return SUCCESS if the data was successfully read
*/
wpt_status wpalReadDeviceMemory
(
wpt_uint32 address,
wpt_uint8* d_buffer,
wpt_uint32 len
)
{
if (NULL == gpEnv || wcnss_device_is_shutdown() ||
(vos_is_logp_in_progress(VOS_MODULE_ID_WDI, NULL) &&
!vos_is_reinit_in_progress(VOS_MODULE_ID_WDI, NULL))) {
WPAL_TRACE(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_ERROR,
"%s: invoked before subsystem initialized",
__func__);
return eWLAN_PAL_STATUS_E_INVAL;
}
address = (address | gpEnv->wcnss_memory->start);
if ((address < gpEnv->wcnss_memory->start) ||
((address + len) > gpEnv->wcnss_memory->end)) {
WPAL_TRACE(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_ERROR,
"%s: Memory address 0x%0x len %d out of range 0x%0x - 0x%0x",
__func__, address, len,
gpEnv->wcnss_memory->start, gpEnv->wcnss_memory->end);
return eWLAN_PAL_STATUS_E_INVAL;
}
vos_mem_copy(d_buffer,
gpEnv->mmio + (address - gpEnv->wcnss_memory->start), len);
rmb();
return eWLAN_PAL_STATUS_SUCCESS;
}
/**
@brief wpalReadRegister provides a mechansim for a client
to read data from a hardware data register
@param address: Physical memory address of the register
@param data: Return location for value that is read
@return SUCCESS if the data was successfully read
*/
wpt_status wpalReadRegister
(
wpt_uint32 address,
wpt_uint32 *data
)
{
/* if SSR is in progress, and WCNSS is not out of reset (re-init
* not invoked), then do not access WCNSS registers */
if (NULL == gpEnv || wcnss_device_is_shutdown() ||
(vos_is_logp_in_progress(VOS_MODULE_ID_WDI, NULL) &&
!vos_is_reinit_in_progress(VOS_MODULE_ID_WDI, NULL))) {
/* Ratelimit wpalReadRegister failure messages which
* can flood serial console during improper system
* initialization or wcnss_device in shutdown state.
* wpalRegisterInterrupt() call to wpalReadRegister is
* likely to cause flooding. */
if (__ratelimit(&wpalReadRegister_rs)) {
WPAL_TRACE(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_ERROR,
"%s: invoked before subsystem initialized",
__func__);
}
return eWLAN_PAL_STATUS_E_INVAL;
}
address = (address | gpEnv->wcnss_memory->start);
if ((address < gpEnv->wcnss_memory->start) ||
(address > gpEnv->wcnss_memory->end)) {
WPAL_TRACE(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_ERROR,
"%s: Register address 0x%0x out of range 0x%0x - 0x%0x",
__func__, address,
(u32) gpEnv->wcnss_memory->start,
(u32) gpEnv->wcnss_memory->end);
return eWLAN_PAL_STATUS_E_INVAL;
}
if (0 != (address & 0x3)) {
WPAL_TRACE(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_ERROR,
"%s: Register address 0x%0x is not word aligned",
__func__, address);
return eWLAN_PAL_STATUS_E_INVAL;
}
*data = readl_relaxed(gpEnv->mmio + (address - gpEnv->wcnss_memory->start));
rmb();
return eWLAN_PAL_STATUS_SUCCESS;
}
/**
@brief wpalWriteRegister provides a mechansim for a client
to write data into a hardware data register
@param address: Physical memory address of the register
@param data: Data value to be written
@return SUCCESS if the data was successfully written
*/
wpt_status wpalWriteRegister
(
wpt_uint32 address,
wpt_uint32 data
)
{
/* if SSR is in progress, and WCNSS is not out of reset (re-init
* not invoked), then do not access WCNSS registers */
if (NULL == gpEnv || wcnss_device_is_shutdown() ||
(vos_is_logp_in_progress(VOS_MODULE_ID_WDI, NULL) &&
!vos_is_reinit_in_progress(VOS_MODULE_ID_WDI, NULL))) {
WPAL_TRACE(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_ERROR,
"%s: invoked before subsystem initialized",
__func__);
return eWLAN_PAL_STATUS_E_INVAL;
}
address = (address | gpEnv->wcnss_memory->start);
if ((address < gpEnv->wcnss_memory->start) ||
(address > gpEnv->wcnss_memory->end)) {
WPAL_TRACE(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_ERROR,
"%s: Register address 0x%0x out of range 0x%0x - 0x%0x",
__func__, address,
(u32) gpEnv->wcnss_memory->start,
(u32) gpEnv->wcnss_memory->end);
return eWLAN_PAL_STATUS_E_INVAL;
}
if (0 != (address & 0x3)) {
WPAL_TRACE(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_ERROR,
"%s: Register address 0x%0x is not word aligned",
__func__, address);
return eWLAN_PAL_STATUS_E_INVAL;
}
wmb();
writel_relaxed(data, gpEnv->mmio + (address - gpEnv->wcnss_memory->start));
return eWLAN_PAL_STATUS_SUCCESS;
}
wpt_status wpalReadRegister
(
wpt_uint32 address,
wpt_uint32 *data
)
{
if (NULL == gpEnv || wcnss_device_is_shutdown() ||
(vos_is_logp_in_progress(VOS_MODULE_ID_WDI, NULL) &&
!vos_is_reinit_in_progress(VOS_MODULE_ID_WDI, NULL))) {
WPAL_TRACE(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_ERROR,
"%s: invoked before subsystem initialized",
__func__);
return eWLAN_PAL_STATUS_E_INVAL;
}
address = (address | gpEnv->wcnss_memory->start);
if ((address < gpEnv->wcnss_memory->start) ||
(address > gpEnv->wcnss_memory->end)) {
WPAL_TRACE(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_ERROR,
"%s: Register address 0x%0x out of range 0x%0x - 0x%0x",
__func__, address,
gpEnv->wcnss_memory->start, gpEnv->wcnss_memory->end);
return eWLAN_PAL_STATUS_E_INVAL;
}
if (0 != (address & 0x3)) {
WPAL_TRACE(eWLAN_MODULE_DAL_DATA, eWLAN_PAL_TRACE_LEVEL_ERROR,
"%s: Register address 0x%0x is not word aligned",
__func__, address);
return eWLAN_PAL_STATUS_E_INVAL;
}
*data = readl_relaxed(gpEnv->mmio + (address - gpEnv->wcnss_memory->start));
rmb();
return eWLAN_PAL_STATUS_SUCCESS;
}