void secwidevinemdw_listenDci(void)
{
enum mc_result mc_ret = MC_DRV_OK;
u32 cmdId;
MSG(INFO, "%s: DCI listener.\n", __func__);
for (;;) {
MSG(INFO, "%s: Waiting for notification\n", __func__);
/* Wait for notification from SWd */
mc_ret = mc_wait_notification(&secwidevinemdwdr_session, MC_INFINITE_TIMEOUT);
if (mc_ret != MC_DRV_OK) {
MSG(ERR, "%s: mcWaitNotification failed, mc_ret=%d\n", __func__, mc_ret);
break;
}
cmdId = secwidevinemdw_dci->command;
u32 currentversion = secwidevinemdw_dci->request.currenthdcpversion;
u32 requiredversion = secwidevinemdw_dci->request.requiredhdcpversion;
MSG(INFO, "%s: wait notification done!! cmdId = 0x%x, current = 0x%x, required = 0x%x\n",
__func__, cmdId, currentversion, requiredversion);
/* Received exception. */
mc_ret = secwidevinemdw_execute(cmdId);
/* Notify the STH*/
mc_ret = mc_notify(&secwidevinemdwdr_session);
if (mc_ret != MC_DRV_OK) {
MSG(ERR, "%s: mcNotify returned: %d\n", __func__, mc_ret);
break;
}
}
}
/* ------------------------------------------------------------- */
static void tlcWaitCmdFromDriver(void)
{
uint32_t ret = TUI_DCI_ERR_INTERNAL_ERROR;
/* Wait for a command from secure driver */
ret = mc_wait_notification(&drSessionHandle, -1);
if (MC_DRV_OK == ret)
pr_debug("tlcWaitCmdFromDriver: Got a command\n");
else
pr_debug("ERROR tlcWaitCmdFromDriver: mc_wait_notification() failed: %d\n",
ret);
}
/* ------------------------------------------------------------- */
static void tlc_wait_cmd_from_driver(void)
{
uint32_t ret = TUI_DCI_ERR_INTERNAL_ERROR;
/* Wait for a command from secure driver */
ret = mc_wait_notification(&dr_session_handle, -1);
if (MC_DRV_OK == ret)
pr_debug("tlc_wait_cmd_from_driver: Got a command\n");
else
pr_debug("ERROR %s: mc_wait_notification() failed: %d\n",
__func__, ret);
}
// return 0 for success and -1 for error
static int set_tplay_handle_addr_request(void)
{
int ret = 0;
enum mc_result mcRet = MC_DRV_OK;
DDPDBG("[SVP] set_tplay_handle_addr_request \n");
open_tplay_driver_connection();
if (tplaySessionHandle.session_id == 0)
{
DDPERR("[SVP] invalid tplay session \n");
return -1;
}
DDPDBG("[SVP] handle_pa=0x%pa \n", &handle_pa);
/* set other TCI parameter */
pTplayTci->tplay_handle_low_addr = (uint32_t)handle_pa;
pTplayTci->tplay_handle_high_addr = (uint32_t)(handle_pa >> 32);
/* set TCI command */
pTplayTci->cmd.header.commandId = CMD_TPLAY_REQUEST;
/* notify the trustlet */
DDPDBG("[SVP] notify Tlsec trustlet CMD_TPLAY_REQUEST \n");
mcRet = mc_notify(&tplaySessionHandle);
if (MC_DRV_OK != mcRet)
{
DDPERR("[SVP] mc_notify failed: %d @%s line %d\n", mcRet, __func__, __LINE__);
ret = -1;
goto _notify_to_trustlet_fail;
}
/* wait for response from the trustlet */
mcRet = mc_wait_notification(&tplaySessionHandle, MC_INFINITE_TIMEOUT);
if (MC_DRV_OK != mcRet)
{
DDPERR("[SVP] mc_wait_notification failed: %d @%s line %d\n", mcRet, __func__, __LINE__);
ret = -1;
goto _notify_from_trustlet_fail;
}
DDPDBG("[SVP] CMD_TPLAY_REQUEST result=%d, return code=%d\n", pTplayTci->result, pTplayTci->rsp.header.returnCode);
_notify_from_trustlet_fail:
_notify_to_trustlet_fail:
close_tplay_driver_connection();
return ret;
}
int32_t cmdq_sec_execute_session_unlocked(struct mc_session_handle *pSessionHandle,
CMDQ_IWC_STATE_ENUM *pIwcState, int32_t timeout_ms)
{
enum mc_result mcRet;
int32_t status = 0;
const int32_t secureWoldTimeout_ms = (0 < timeout_ms) ?
(timeout_ms) :
(MC_INFINITE_TIMEOUT);
CMDQ_PROF_START("CMDQ_SEC_EXE");
do {
/* notify to secure world */
mcRet = mc_notify(pSessionHandle);
if (MC_DRV_OK != mcRet) {
CMDQ_ERR("[SEC]EXEC: mc_notify err[0x%x]\n", mcRet);
status = -1;
break;
} else {
CMDQ_MSG("[SEC]EXEC: mc_notify ret[0x%x]\n", mcRet);
}
(*pIwcState) = IWC_SES_TRANSACTED;
/* wait respond */
mcRet = mc_wait_notification(pSessionHandle, secureWoldTimeout_ms);
if (MC_DRV_ERR_TIMEOUT == mcRet) {
CMDQ_ERR
("[SEC]EXEC: mc_wait_notification timeout, err[0x%x], secureWoldTimeout_ms[%d]\n",
mcRet, secureWoldTimeout_ms);
status = -ETIMEDOUT;
break;
}
if (MC_DRV_OK != mcRet) {
CMDQ_ERR("[SEC]EXEC: mc_wait_notification err[0x%x]\n", mcRet);
status = -1;
break;
} else {
CMDQ_MSG("[SEC]EXEC: mc_wait_notification err[%d]\n", mcRet);
}
(*pIwcState) = IWC_SES_ON_TRANSACTED;
} while (0);
CMDQ_PROF_END("CMDQ_SEC_EXE");
return status;
}
static int dump_tplay_physcial_addr(void)
{
DDPDBG("[SVP] dump_tplay_physcial_addr \n");
int ret = 0;
enum mc_result mcRet = MC_DRV_OK;
open_tplay_driver_connection();
if (tplaySessionHandle.session_id == 0)
{
DDPERR("[SVP] invalid tplay session \n");
return -1;
}
/* set TCI command */
pTplayTci->cmd.header.commandId = CMD_TPLAY_DUMP_PHY;
/* notify the trustlet */
DDPMSG("[SVP] notify Tlsec trustlet CMD_TPLAY_DUMP_PHY \n");
mcRet = mc_notify(&tplaySessionHandle);
if (MC_DRV_OK != mcRet)
{
DDPERR("[SVP] mc_notify failed: %d @%s line %d\n", mcRet, __func__, __LINE__);
ret = -1;
goto _notify_to_trustlet_fail;
}
/* wait for response from the trustlet */
mcRet = mc_wait_notification(&tplaySessionHandle, MC_INFINITE_TIMEOUT);
if (MC_DRV_OK != mcRet)
{
DDPERR("[SVP] mc_wait_notification failed: %d @%s line %d\n", mcRet, __func__, __LINE__);
ret = -1;
goto _notify_from_trustlet_fail;
}
DDPDBG("[SVP] CMD_TPLAY_DUMP_PHY result=%d, return code=%d\n", pTplayTci->result, pTplayTci->rsp.header.returnCode);
_notify_from_trustlet_fail:
_notify_to_trustlet_fail:
close_tplay_driver_connection();
return ret;
}
/* DO NOT invoke this function unless you get HACC lock */
int tee_secure_request(unsigned int user, unsigned char *data, unsigned int data_size,
unsigned int direction, unsigned char *seed, unsigned int seed_size)
{
int ret = SEC_OK;
struct mc_bulk_map dataMapInfo;
struct mc_bulk_map seedMapInfo;
char *databuf = NULL;
char *seedbuf = NULL;
enum mc_result mcRet = 0;
/* allocate data buffer to be sent to TEE */
databuf = vmalloc(data_size);
if (databuf == NULL) {
pr_debug("NWD HACC: vmalloc fail for data buffer");
ret = ERR_HACC_ALLOCATE_BUFFER_FAIL;
goto _allocate_data_buf_err;
}
memcpy(databuf, data, data_size);
if (seed_size != 0) {
/* allocate seed buffer to be sent to TEE */
seedbuf = vmalloc(seed_size);
if (seedbuf == NULL) {
pr_debug("NWD HACC: vmalloc fail for seed buffer");
ret = ERR_HACC_ALLOCATE_BUFFER_FAIL;
goto _allocate_seed_buf_err;
}
memcpy(seedbuf, seed, seed_size);
}
/* map TCI virtual address for data buffer */
ret = mc_map(&drSessionHandle, databuf, data_size, &dataMapInfo);
if (MC_DRV_OK != ret) {
pr_debug("NWD HACC: mcMap failed of data buffer: %d", ret);
ret = ERR_HACC_MCMAP_BUFFER_FAIL;
goto _mcmap_data_fail;
}
pTci->data_addr = (uint32_t) dataMapInfo.secure_virt_addr;
pTci->data_len = data_size;
if (seed_size != 0) {
/* map TCI virtual address for seed buffer */
ret = mc_map(&drSessionHandle, seedbuf, seed_size, &seedMapInfo);
if (MC_DRV_OK != ret) {
pr_debug("NWD HACC: mcMap failed of seed buffer: %d", ret);
ret = ERR_HACC_MCMAP_BUFFER_FAIL;
goto _mcmap_seed_fail;
}
pTci->seed_addr = (uint32_t) seedMapInfo.secure_virt_addr;
pTci->seed_len = seed_size;
} else {
pTci->seed_addr = 0;
pTci->seed_len = 0;
}
/* set other TCI parameter */
pTci->hacc_user = user;
pTci->direction = direction;
/* set TCI command */
pTci->cmd.header.commandId = CMD_HACC_REQUEST;
/* notify the trustlet */
pr_debug("NWD HACC: prepare notify\n");
mcRet = mc_notify(&drSessionHandle);
if (MC_DRV_OK != mcRet) {
pr_debug("NWD HACC IRQ fail: mc_notify returned: %d\n", mcRet);
ret = ERR_HACC_NOTIFY_TO_TRUSTLET_FAIL;
goto _notify_to_trustlet_fail;
}
/* wait for response from the trustlet */
mcRet = mc_wait_notification(&drSessionHandle, /*MC_INFINITE_TIMEOUT */ 20000);
if (MC_DRV_OK != mcRet) {
pr_debug("NWD HACC IRQ fail: mc_wait_notification 20s timeout: %d\n", mcRet);
ret = ERR_HACC_NOTIFY_FROM_TRUSTLET_FAIL;
goto _notify_from_trustlet_fail;
}
if (pTci->result != 0) {
pr_debug("NWD HACC Request Fail!!!!!!!!(ret:%d, err:%d)\n", pTci->result,
pTci->rsp.header.returnCode);
} else {
pr_debug("NWD HACC Request Success!!!!!!!!\n");
/* update result from secure buffer */
memcpy(data, databuf, data_size);
}
_notify_from_trustlet_fail:
_notify_to_trustlet_fail:
if (seed_size != 0)
mc_unmap(&drSessionHandle, seedbuf, &seedMapInfo);
_mcmap_seed_fail:
mc_unmap(&drSessionHandle, databuf, &dataMapInfo);
_mcmap_data_fail:
if (seed_size != 0)
vfree(seedbuf);
_allocate_seed_buf_err:
vfree(databuf);
_allocate_data_buf_err:
return ret;
}
