long diagchar_ioctl(struct file *filp,
unsigned int iocmd, unsigned long ioarg)
{
int i, j, count_entries = 0, temp;
int success = -1;
void *temp_buf;
if (iocmd == DIAG_IOCTL_COMMAND_REG) {
struct bindpkt_params_per_process *pkt_params =
(struct bindpkt_params_per_process *) ioarg;
mutex_lock(&driver->diagchar_mutex);
for (i = 0; i < diag_max_registration; i++) {
if (driver->table[i].process_id == 0) {
diag_add_reg(i, pkt_params->params,
&success, &count_entries);
if (pkt_params->count > count_entries) {
pkt_params->params++;
} else {
mutex_unlock(&driver->diagchar_mutex);
return success;
}
}
}
if (i < diag_threshold_registration) {
/* Increase table size by amount required */
diag_max_registration += pkt_params->count -
count_entries;
/* Make sure size doesnt go beyond threshold */
if (diag_max_registration > diag_threshold_registration)
diag_max_registration =
diag_threshold_registration;
temp_buf = krealloc(driver->table,
diag_max_registration*sizeof(struct
diag_master_table), GFP_KERNEL);
if (!temp_buf) {
diag_max_registration -= pkt_params->count -
count_entries;
pr_alert("diag: Insufficient memory for reg.");
mutex_unlock(&driver->diagchar_mutex);
return 0;
} else {
driver->table = temp_buf;
}
for (j = i; j < diag_max_registration; j++) {
diag_add_reg(j, pkt_params->params,
&success, &count_entries);
if (pkt_params->count > count_entries) {
pkt_params->params++;
} else {
mutex_unlock(&driver->diagchar_mutex);
return success;
}
}
} else {
mutex_unlock(&driver->diagchar_mutex);
pr_err("Max size reached, Pkt Registration failed for"
" Process %d", current->tgid);
}
success = 0;
} else if (iocmd == DIAG_IOCTL_GET_DELAYED_RSP_ID) {
struct diagpkt_delay_params *delay_params =
(struct diagpkt_delay_params *) ioarg;
if ((delay_params->rsp_ptr) &&
(delay_params->size == sizeof(delayed_rsp_id)) &&
(delay_params->num_bytes_ptr)) {
*((uint16_t *)delay_params->rsp_ptr) =
DIAGPKT_NEXT_DELAYED_RSP_ID(delayed_rsp_id);
*(delay_params->num_bytes_ptr) = sizeof(delayed_rsp_id);
success = 0;
}
} else if (iocmd == DIAG_IOCTL_LSM_DEINIT) {
for (i = 0; i < driver->num_clients; i++)
if (driver->client_map[i].pid == current->tgid)
break;
if (i == -1)
return -EINVAL;
driver->data_ready[i] |= DEINIT_TYPE;
wake_up_interruptible(&driver->wait_q);
success = 1;
} else if (iocmd == DIAG_IOCTL_SWITCH_LOGGING) {
mutex_lock(&driver->diagchar_mutex);
temp = driver->logging_mode;
driver->logging_mode = (int)ioarg;
if (driver->logging_mode == MEMORY_DEVICE_MODE)
driver->mask_check = 1;
if (driver->logging_mode == UART_MODE) {
driver->mask_check = 0;
driver->logging_mode = MEMORY_DEVICE_MODE;
}
driver->logging_process_id = current->tgid;
mutex_unlock(&driver->diagchar_mutex);
if (temp == MEMORY_DEVICE_MODE && driver->logging_mode
== NO_LOGGING_MODE) {
driver->in_busy_1 = 1;
driver->in_busy_2 = 1;
driver->in_busy_qdsp_1 = 1;
driver->in_busy_qdsp_2 = 1;
driver->in_busy_wcnss = 1;
#ifdef CONFIG_DIAG_SDIO_PIPE
driver->in_busy_sdio = 1;
#endif
} else if (temp == NO_LOGGING_MODE && driver->logging_mode
== MEMORY_DEVICE_MODE) {
driver->in_busy_1 = 0;
driver->in_busy_2 = 0;
driver->in_busy_qdsp_1 = 0;
driver->in_busy_qdsp_2 = 0;
driver->in_busy_wcnss = 0;
/* Poll SMD channels to check for data*/
if (driver->ch)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_work));
if (driver->chqdsp)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_qdsp_work));
if (driver->ch_wcnss)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_wcnss_work));
#ifdef CONFIG_DIAG_SDIO_PIPE
driver->in_busy_sdio = 0;
/* Poll SDIO channel to check for data */
if (driver->sdio_ch)
queue_work(driver->diag_sdio_wq,
&(driver->diag_read_sdio_work));
#endif
}
#ifdef CONFIG_DIAG_OVER_USB
else if (temp == USB_MODE && driver->logging_mode
== NO_LOGGING_MODE)
diagfwd_disconnect();
else if (temp == NO_LOGGING_MODE && driver->logging_mode
== USB_MODE)
diagfwd_connect();
else if (temp == USB_MODE && driver->logging_mode
== MEMORY_DEVICE_MODE) {
diagfwd_disconnect();
driver->in_busy_1 = 0;
driver->in_busy_2 = 0;
driver->in_busy_qdsp_2 = 0;
driver->in_busy_qdsp_2 = 0;
driver->in_busy_wcnss = 0;
/* Poll SMD channels to check for data*/
if (driver->ch)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_work));
if (driver->chqdsp)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_qdsp_work));
if (driver->ch_wcnss)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_wcnss_work));
#ifdef CONFIG_DIAG_SDIO_PIPE
driver->in_busy_sdio = 0;
/* Poll SDIO channel to check for data */
if (driver->sdio_ch)
queue_work(driver->diag_sdio_wq,
&(driver->diag_read_sdio_work));
#endif
} else if (temp == MEMORY_DEVICE_MODE &&
driver->logging_mode == USB_MODE)
diagfwd_connect();
#endif /* DIAG over USB */
success = 1;
}
return success;
}
long diagchar_ioctl(struct file *filp,
unsigned int iocmd, unsigned long ioarg)
{
int i, j, temp, success = -1;
unsigned int count_entries = 0, interim_count = 0;
void *temp_buf;
if (iocmd == DIAG_IOCTL_COMMAND_REG) {
struct bindpkt_params_per_process pkt_params;
struct bindpkt_params *params;
struct bindpkt_params *head_params;
if (copy_from_user(&pkt_params, (void *)ioarg,
sizeof(struct bindpkt_params_per_process))) {
return -EFAULT;
}
if ((UINT32_MAX/sizeof(struct bindpkt_params)) <
pkt_params.count) {
pr_alert("diag: integer overflow while multiply\n");
return -EFAULT;
}
params = kzalloc(pkt_params.count*sizeof(
struct bindpkt_params), GFP_KERNEL);
if (!params) {
pr_alert("diag: unable to alloc memory\n");
return -ENOMEM;
} else
head_params = params;
if (copy_from_user(params, pkt_params.params,
pkt_params.count*sizeof(struct bindpkt_params))) {
kfree(head_params);
return -EFAULT;
}
mutex_lock(&driver->diagchar_mutex);
for (i = 0; i < diag_max_reg; i++) {
if (driver->table[i].process_id == 0) {
diag_add_reg(i, params, &success,
&count_entries);
if (pkt_params.count > count_entries) {
params++;
} else {
mutex_unlock(&driver->diagchar_mutex);
kfree(head_params);
return success;
}
}
}
if (i < diag_threshold_reg) {
/* Increase table size by amount required */
if (pkt_params.count >= count_entries) {
interim_count = pkt_params.count -
count_entries;
} else {
pr_alert("diag: error in params count\n");
kfree(head_params);
mutex_unlock(&driver->diagchar_mutex);
return -EFAULT;
}
if (UINT32_MAX - diag_max_reg >=
interim_count) {
diag_max_reg += interim_count;
} else {
pr_alert("diag: Integer overflow\n");
kfree(head_params);
mutex_unlock(&driver->diagchar_mutex);
return -EFAULT;
}
/* Make sure size doesnt go beyond threshold */
if (diag_max_reg > diag_threshold_reg) {
diag_max_reg = diag_threshold_reg;
pr_info("diag: best case memory allocation\n");
}
if (UINT32_MAX/sizeof(struct diag_master_table) <
diag_max_reg) {
pr_alert("diag: integer overflow\n");
kfree(head_params);
mutex_unlock(&driver->diagchar_mutex);
return -EFAULT;
}
temp_buf = krealloc(driver->table,
diag_max_reg*sizeof(struct
diag_master_table), GFP_KERNEL);
if (!temp_buf) {
pr_alert("diag: Insufficient memory for reg.\n");
mutex_unlock(&driver->diagchar_mutex);
if (pkt_params.count >= count_entries) {
interim_count = pkt_params.count -
count_entries;
} else {
pr_alert("diag: params count error\n");
mutex_unlock(&driver->diagchar_mutex);
kfree(head_params);
return -EFAULT;
}
if (diag_max_reg >= interim_count) {
diag_max_reg -= interim_count;
} else {
pr_alert("diag: Integer underflow\n");
mutex_unlock(&driver->diagchar_mutex);
kfree(head_params);
return -EFAULT;
}
kfree(head_params);
return 0;
} else {
driver->table = temp_buf;
}
for (j = i; j < diag_max_reg; j++) {
diag_add_reg(j, params, &success,
&count_entries);
if (pkt_params.count > count_entries) {
params++;
} else {
mutex_unlock(&driver->diagchar_mutex);
kfree(head_params);
return success;
}
}
kfree(head_params);
mutex_unlock(&driver->diagchar_mutex);
} else {
mutex_unlock(&driver->diagchar_mutex);
kfree(head_params);
pr_err("Max size reached, Pkt Registration failed for"
" Process %d", current->tgid);
}
success = 0;
} else if (iocmd == DIAG_IOCTL_GET_DELAYED_RSP_ID) {
struct diagpkt_delay_params delay_params;
uint16_t interim_rsp_id;
int interim_size;
if (copy_from_user(&delay_params, (void *)ioarg,
sizeof(struct diagpkt_delay_params)))
return -EFAULT;
if ((delay_params.rsp_ptr) &&
(delay_params.size == sizeof(delayed_rsp_id)) &&
(delay_params.num_bytes_ptr)) {
interim_rsp_id = DIAGPKT_NEXT_DELAYED_RSP_ID(
delayed_rsp_id);
if (copy_to_user((void *)delay_params.rsp_ptr,
&interim_rsp_id, sizeof(uint16_t)))
return -EFAULT;
interim_size = sizeof(delayed_rsp_id);
if (copy_to_user((void *)delay_params.num_bytes_ptr,
&interim_size, sizeof(int)))
return -EFAULT;
success = 0;
}
} else if (iocmd == DIAG_IOCTL_LSM_DEINIT) {
for (i = 0; i < driver->num_clients; i++)
if (driver->client_map[i].pid == current->tgid)
break;
if (i == -1)
return -EINVAL;
driver->data_ready[i] |= DEINIT_TYPE;
wake_up_interruptible(&driver->wait_q);
success = 1;
} else if (iocmd == DIAG_IOCTL_SWITCH_LOGGING) {
mutex_lock(&driver->diagchar_mutex);
temp = driver->logging_mode;
driver->logging_mode = (int)ioarg;
if (driver->logging_mode == MEMORY_DEVICE_MODE)
driver->mask_check = 1;
if (driver->logging_mode == UART_MODE) {
driver->mask_check = 0;
driver->logging_mode = MEMORY_DEVICE_MODE;
}
driver->logging_process_id = current->tgid;
mutex_unlock(&driver->diagchar_mutex);
if (temp == MEMORY_DEVICE_MODE && driver->logging_mode
== NO_LOGGING_MODE) {
driver->in_busy_1 = 1;
driver->in_busy_2 = 1;
driver->in_busy_qdsp_1 = 1;
driver->in_busy_qdsp_2 = 1;
driver->in_busy_wcnss = 1;
#ifdef CONFIG_DIAG_SDIO_PIPE
driver->in_busy_sdio = 1;
#endif
} else if (temp == NO_LOGGING_MODE && driver->logging_mode
== MEMORY_DEVICE_MODE) {
driver->in_busy_1 = 0;
driver->in_busy_2 = 0;
driver->in_busy_qdsp_1 = 0;
driver->in_busy_qdsp_2 = 0;
driver->in_busy_wcnss = 0;
/* Poll SMD channels to check for data*/
if (driver->ch)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_work));
if (driver->chqdsp)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_qdsp_work));
if (driver->ch_wcnss)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_wcnss_work));
#ifdef CONFIG_DIAG_SDIO_PIPE
driver->in_busy_sdio = 0;
/* Poll SDIO channel to check for data */
if (driver->sdio_ch)
queue_work(driver->diag_sdio_wq,
&(driver->diag_read_sdio_work));
#endif
}
#ifdef CONFIG_DIAG_OVER_USB
else if (temp == USB_MODE && driver->logging_mode
== NO_LOGGING_MODE)
diagfwd_disconnect();
else if (temp == NO_LOGGING_MODE && driver->logging_mode
== USB_MODE)
diagfwd_connect();
else if (temp == USB_MODE && driver->logging_mode
== MEMORY_DEVICE_MODE) {
diagfwd_disconnect();
driver->in_busy_1 = 0;
driver->in_busy_2 = 0;
driver->in_busy_qdsp_2 = 0;
driver->in_busy_qdsp_2 = 0;
driver->in_busy_wcnss = 0;
/* Poll SMD channels to check for data*/
if (driver->ch)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_work));
if (driver->chqdsp)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_qdsp_work));
if (driver->ch_wcnss)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_wcnss_work));
#ifdef CONFIG_DIAG_SDIO_PIPE
driver->in_busy_sdio = 0;
/* Poll SDIO channel to check for data */
if (driver->sdio_ch)
queue_work(driver->diag_sdio_wq,
&(driver->diag_read_sdio_work));
#endif
} else if (temp == MEMORY_DEVICE_MODE &&
driver->logging_mode == USB_MODE)
diagfwd_connect();
#endif /* DIAG over USB */
success = 1;
}
return success;
}
long diagchar_ioctl(struct file *filp,
unsigned int iocmd, unsigned long ioarg)
{
int i, j, temp, success = -1, status;
unsigned int count_entries = 0, interim_count = 0;
void *temp_buf;
uint16_t support_list = 0;
struct dci_notification_tbl *dci_params;
if (iocmd == DIAG_IOCTL_COMMAND_REG) {
struct bindpkt_params_per_process pkt_params;
struct bindpkt_params *params;
struct bindpkt_params *head_params;
if (copy_from_user(&pkt_params, (void *)ioarg,
sizeof(struct bindpkt_params_per_process))) {
return -EFAULT;
}
if ((UINT32_MAX/sizeof(struct bindpkt_params)) <
pkt_params.count) {
pr_warning("diag: integer overflow while multiply\n");
return -EFAULT;
}
params = kzalloc(pkt_params.count*sizeof(
struct bindpkt_params), GFP_KERNEL);
if (!params) {
pr_err("diag: unable to alloc memory\n");
return -ENOMEM;
} else
head_params = params;
if (copy_from_user(params, pkt_params.params,
pkt_params.count*sizeof(struct bindpkt_params))) {
kfree(head_params);
return -EFAULT;
}
mutex_lock(&driver->diagchar_mutex);
for (i = 0; i < diag_max_reg; i++) {
if (driver->table[i].process_id == 0) {
diag_add_reg(i, params,
&success, &count_entries);
if (pkt_params.count > count_entries) {
params++;
} else {
mutex_unlock(&driver->diagchar_mutex);
kfree(head_params);
return success;
}
}
}
if (i < diag_threshold_reg) {
/* Increase table size by amount required */
if (pkt_params.count >= count_entries) {
interim_count = pkt_params.count -
count_entries;
} else {
pr_warning("diag: error in params count\n");
kfree(head_params);
mutex_unlock(&driver->diagchar_mutex);
return -EFAULT;
}
if (UINT32_MAX - diag_max_reg >=
interim_count) {
diag_max_reg += interim_count;
} else {
pr_warning("diag: Integer overflow\n");
kfree(head_params);
mutex_unlock(&driver->diagchar_mutex);
return -EFAULT;
}
/* Make sure size doesnt go beyond threshold */
if (diag_max_reg > diag_threshold_reg) {
diag_max_reg = diag_threshold_reg;
pr_info("diag: best case memory allocation\n");
}
if (UINT32_MAX/sizeof(struct diag_master_table) <
diag_max_reg) {
pr_warning("diag: integer overflow\n");
kfree(head_params);
mutex_unlock(&driver->diagchar_mutex);
return -EFAULT;
}
temp_buf = krealloc(driver->table,
diag_max_reg*sizeof(struct
diag_master_table), GFP_KERNEL);
if (!temp_buf) {
pr_alert("diag: Insufficient memory for reg.\n");
mutex_unlock(&driver->diagchar_mutex);
if (pkt_params.count >= count_entries) {
interim_count = pkt_params.count -
count_entries;
} else {
pr_warning("diag: params count error\n");
mutex_unlock(&driver->diagchar_mutex);
kfree(head_params);
return -EFAULT;
}
if (diag_max_reg >= interim_count) {
diag_max_reg -= interim_count;
} else {
pr_warning("diag: Integer underflow\n");
mutex_unlock(&driver->diagchar_mutex);
kfree(head_params);
return -EFAULT;
}
kfree(head_params);
return 0;
} else {
driver->table = temp_buf;
}
for (j = i; j < diag_max_reg; j++) {
diag_add_reg(j, params,
&success, &count_entries);
if (pkt_params.count > count_entries) {
params++;
} else {
mutex_unlock(&driver->diagchar_mutex);
kfree(head_params);
return success;
}
}
kfree(head_params);
mutex_unlock(&driver->diagchar_mutex);
} else {
mutex_unlock(&driver->diagchar_mutex);
kfree(head_params);
pr_err("Max size reached, Pkt Registration failed for"
" Process %d", current->tgid);
}
success = 0;
} else if (iocmd == DIAG_IOCTL_GET_DELAYED_RSP_ID) {
struct diagpkt_delay_params delay_params;
uint16_t interim_rsp_id;
int interim_size;
if (copy_from_user(&delay_params, (void *)ioarg,
sizeof(struct diagpkt_delay_params)))
return -EFAULT;
if ((delay_params.rsp_ptr) &&
(delay_params.size == sizeof(delayed_rsp_id)) &&
(delay_params.num_bytes_ptr)) {
interim_rsp_id = DIAGPKT_NEXT_DELAYED_RSP_ID(
delayed_rsp_id);
if (copy_to_user((void *)delay_params.rsp_ptr,
&interim_rsp_id, sizeof(uint16_t)))
return -EFAULT;
interim_size = sizeof(delayed_rsp_id);
if (copy_to_user((void *)delay_params.num_bytes_ptr,
&interim_size, sizeof(int)))
return -EFAULT;
success = 0;
}
} else if (iocmd == DIAG_IOCTL_DCI_REG) {
if (driver->dci_state == DIAG_DCI_NO_REG)
return DIAG_DCI_NO_REG;
if (driver->num_dci_client >= MAX_DCI_CLIENT)
return DIAG_DCI_NO_REG;
dci_params = kzalloc(sizeof(struct dci_notification_tbl),
GFP_KERNEL);
if (dci_params == NULL) {
pr_err("diag: unable to alloc memory\n");
return -ENOMEM;
}
if (copy_from_user(dci_params, (void *)ioarg,
sizeof(struct dci_notification_tbl)))
return -EFAULT;
mutex_lock(&driver->dci_mutex);
driver->num_dci_client++;
diag_printk(1,"diag:%s id = %d\n",__func__, driver->dci_client_id);
driver->dci_client_id++;
for (i = 0; i < MAX_DCI_CLIENT; i++) {
if (driver->dci_notify_tbl[i].client == NULL) {
driver->dci_notify_tbl[i].client = current;
driver->dci_notify_tbl[i].list =
dci_params->list;
driver->dci_notify_tbl[i].signal_type =
dci_params->signal_type;
break;
}
}
mutex_unlock(&driver->dci_mutex);
kfree(dci_params);
return driver->dci_client_id;
} else if (iocmd == DIAG_IOCTL_DCI_DEINIT) {
success = -1;
/* Delete this process from DCI table */
mutex_lock(&driver->dci_mutex);
for (i = 0; i < dci_max_reg; i++) {
if (driver->dci_tbl[i].pid == current->tgid) {
diag_printk(1,"diag:%s delete %d\n",__func__, current->tgid);
driver->dci_tbl[i].pid = 0;
success = i;
}
}
for (i = 0; i < MAX_DCI_CLIENT; i++) {
if (driver->dci_notify_tbl[i].client == current) {
driver->dci_notify_tbl[i].client = NULL;
break;
}
}
/* if any registrations were deleted successfully OR a valid
client_id was sent in DEINIT call , then its DCI client */
if (success >= 0 || ioarg)
driver->num_dci_client--;
driver->num_dci_client--;
mutex_unlock(&driver->dci_mutex);
for (i = 0; i < dci_max_reg; i++)
if (driver->dci_tbl[i].pid != 0)
diag_printk(1,"diag:%s PID = %d, UID = %d, tag = %d\n",__func__,
driver->dci_tbl[i].pid, driver->dci_tbl[i].uid, driver->dci_tbl[i].tag);
diag_printk(1,"diag:%s complete deleting registrations\n",__func__);
return success;
} else if (iocmd == DIAG_IOCTL_DCI_SUPPORT) {
if (driver->ch_dci)
support_list = support_list | DIAG_CON_MPSS;
*(uint16_t *)ioarg = support_list;
return DIAG_DCI_NO_ERROR;
} else if (iocmd == DIAG_IOCTL_LSM_DEINIT) {
for (i = 0; i < driver->num_clients; i++)
if (driver->client_map[i].pid == current->tgid)
break;
if (i == -1)
return -EINVAL;
driver->data_ready[i] |= DEINIT_TYPE;
wake_up_interruptible(&driver->wait_q);
success = 1;
} else if (iocmd == DIAG_IOCTL_SWITCH_LOGGING) {
mutex_lock(&driver->diagchar_mutex);
temp = driver->logging_mode;
driver->logging_mode = (int)ioarg;
if (driver->logging_mode == MEMORY_DEVICE_MODE) {
diag_clear_hsic_tbl();
driver->mask_check = 1;
if (driver->socket_process) {
/*
* Notify the socket logging process that we
* are switching to MEMORY_DEVICE_MODE
*/
status = send_sig(SIGCONT,
driver->socket_process, 0);
if (status) {
pr_err("diag: %s, Error notifying ",
__func__);
pr_err("socket process, status: %d\n",
status);
}
}
}
if (driver->logging_mode == UART_MODE) {
diag_clear_hsic_tbl();
driver->mask_check = 0;
driver->logging_mode = MEMORY_DEVICE_MODE;
}
if (driver->logging_mode == SOCKET_MODE) {
diag_clear_hsic_tbl();
driver->socket_process = current;
driver->mask_check = 0;
driver->logging_mode = MEMORY_DEVICE_MODE;
}
driver->logging_process_id = current->tgid;
mutex_unlock(&driver->diagchar_mutex);
if (temp == MEMORY_DEVICE_MODE && driver->logging_mode
== NO_LOGGING_MODE) {
driver->in_busy_1 = 1;
driver->in_busy_2 = 1;
driver->in_busy_qdsp_1 = 1;
driver->in_busy_qdsp_2 = 1;
driver->in_busy_wcnss_1 = 1;
driver->in_busy_wcnss_2 = 1;
#ifdef CONFIG_DIAG_SDIO_PIPE
driver->in_busy_sdio = 1;
#endif
#ifdef CONFIG_DIAG_BRIDGE_CODE
diagfwd_disconnect_bridge(0);
diag_clear_hsic_tbl();
#endif
} else if (temp == NO_LOGGING_MODE && driver->logging_mode
== MEMORY_DEVICE_MODE) {
driver->in_busy_1 = 0;
driver->in_busy_2 = 0;
driver->in_busy_qdsp_1 = 0;
driver->in_busy_qdsp_2 = 0;
driver->in_busy_wcnss_1 = 0;
driver->in_busy_wcnss_2 = 0;
/* Poll SMD channels to check for data*/
if (driver->ch)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_work));
if (driver->chqdsp)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_qdsp_work));
if (driver->ch_wcnss)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_wcnss_work));
#ifdef CONFIG_DIAG_SDIO_PIPE
driver->in_busy_sdio = 0;
/* Poll SDIO channel to check for data */
if (driver->sdio_ch)
queue_work(driver->diag_sdio_wq,
&(driver->diag_read_sdio_work));
#endif
#ifdef CONFIG_DIAG_BRIDGE_CODE
diagfwd_connect_bridge(0);
#endif
}
#ifdef CONFIG_DIAG_OVER_USB
else if (temp == USB_MODE && driver->logging_mode
== NO_LOGGING_MODE) {
diagfwd_disconnect();
#ifdef CONFIG_DIAG_BRIDGE_CODE
diagfwd_disconnect_bridge(0);
#endif
} else if (temp == NO_LOGGING_MODE && driver->logging_mode
== USB_MODE) {
diagfwd_connect();
#ifdef CONFIG_DIAG_BRIDGE_CODE
diagfwd_connect_bridge(0);
#endif
} else if (temp == USB_MODE && driver->logging_mode
== MEMORY_DEVICE_MODE) {
diagfwd_disconnect();
driver->in_busy_1 = 0;
driver->in_busy_2 = 0;
driver->in_busy_qdsp_1 = 0;
driver->in_busy_qdsp_2 = 0;
driver->in_busy_wcnss_1 = 0;
driver->in_busy_wcnss_2 = 0;
/* Poll SMD channels to check for data*/
if (driver->ch)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_work));
if (driver->chqdsp)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_qdsp_work));
if (driver->ch_wcnss)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_wcnss_work));
#ifdef CONFIG_DIAG_SDIO_PIPE
driver->in_busy_sdio = 0;
/* Poll SDIO channel to check for data */
if (driver->sdio_ch)
queue_work(driver->diag_sdio_wq,
&(driver->diag_read_sdio_work));
#endif
#ifdef CONFIG_DIAG_BRIDGE_CODE
diagfwd_cancel_hsic();
diagfwd_connect_bridge(0);
#endif
} else if (temp == MEMORY_DEVICE_MODE &&
driver->logging_mode == USB_MODE) {
diagfwd_connect();
#ifdef CONFIG_DIAG_BRIDGE_CODE
diag_clear_hsic_tbl();
diagfwd_cancel_hsic();
diagfwd_connect_bridge(0);
#endif
}
#endif /* DIAG over USB */
success = 1;
}
return success;
}
long diagchar_ioctl(struct file *filp,
unsigned int iocmd, unsigned long ioarg)
{
int i, j, count_entries = 0, temp;
int success = -1;
void *temp_buf;
uint16_t support_list = 0;
struct dci_notification_tbl *notify_params;
if (iocmd == DIAG_IOCTL_COMMAND_REG) {
struct bindpkt_params_per_process *pkt_params =
(struct bindpkt_params_per_process *) ioarg;
mutex_lock(&driver->diagchar_mutex);
for (i = 0; i < diag_max_reg; i++) {
if (driver->table[i].process_id == 0) {
diag_add_reg(i, pkt_params->params,
&success, &count_entries);
if (pkt_params->count > count_entries) {
pkt_params->params++;
} else {
mutex_unlock(&driver->diagchar_mutex);
return success;
}
}
}
if (i < diag_threshold_reg) {
/* Increase table size by amount required */
diag_max_reg += pkt_params->count -
count_entries;
/* Make sure size doesnt go beyond threshold */
if (diag_max_reg > diag_threshold_reg) {
diag_max_reg = diag_threshold_reg;
pr_info("diag: best case memory allocation\n");
}
temp_buf = krealloc(driver->table,
diag_max_reg*sizeof(struct
diag_master_table), GFP_KERNEL);
if (!temp_buf) {
diag_max_reg -= pkt_params->count -
count_entries;
pr_alert("diag: Insufficient memory for reg.");
mutex_unlock(&driver->diagchar_mutex);
return 0;
} else {
driver->table = temp_buf;
}
for (j = i; j < diag_max_reg; j++) {
diag_add_reg(j, pkt_params->params,
&success, &count_entries);
if (pkt_params->count > count_entries) {
pkt_params->params++;
} else {
mutex_unlock(&driver->diagchar_mutex);
return success;
}
}
mutex_unlock(&driver->diagchar_mutex);
} else {
mutex_unlock(&driver->diagchar_mutex);
pr_err("Max size reached, Pkt Registration failed for"
" Process %d", current->tgid);
}
success = 0;
} else if (iocmd == DIAG_IOCTL_GET_DELAYED_RSP_ID) {
struct diagpkt_delay_params *delay_params =
(struct diagpkt_delay_params *) ioarg;
if ((delay_params->rsp_ptr) &&
(delay_params->size == sizeof(delayed_rsp_id)) &&
(delay_params->num_bytes_ptr)) {
*((uint16_t *)delay_params->rsp_ptr) =
DIAGPKT_NEXT_DELAYED_RSP_ID(delayed_rsp_id);
*(delay_params->num_bytes_ptr) = sizeof(delayed_rsp_id);
success = 0;
}
} else if (iocmd == DIAG_IOCTL_DCI_REG) {
if (driver->dci_state == DIAG_DCI_NO_REG)
return DIAG_DCI_NO_REG;
if (driver->num_dci_client >= MAX_DCI_CLIENT)
return DIAG_DCI_NO_REG;
notify_params = (struct dci_notification_tbl *) ioarg;
mutex_lock(&driver->dci_mutex);
driver->num_dci_client++;
pr_debug("diag: id = %d\n", driver->dci_client_id);
driver->dci_client_id++;
for (i = 0; i < MAX_DCI_CLIENT; i++) {
if (driver->dci_notify_tbl[i].client == NULL) {
driver->dci_notify_tbl[i].client = current;
driver->dci_notify_tbl[i].list =
notify_params->list;
driver->dci_notify_tbl[i].signal_type =
notify_params->signal_type;
break;
}
}
mutex_unlock(&driver->dci_mutex);
return driver->dci_client_id;
} else if (iocmd == DIAG_IOCTL_DCI_DEINIT) {
success = -1;
/* Delete this process from DCI table */
mutex_lock(&driver->dci_mutex);
for (i = 0; i < dci_max_reg; i++) {
if (driver->dci_tbl[i].pid == current->tgid) {
pr_debug("diag: delete %d\n", current->tgid);
driver->dci_tbl[i].pid = 0;
success = i;
}
}
for (i = 0; i < MAX_DCI_CLIENT; i++) {
if (driver->dci_notify_tbl[i].client == current) {
driver->dci_notify_tbl[i].client = NULL;
break;
}
}
/* if any registrations were deleted successfully OR a valid
client_id was sent in DEINIT call , then its DCI client */
if (success >= 0 || ioarg)
driver->num_dci_client--;
driver->num_dci_client--;
mutex_unlock(&driver->dci_mutex);
for (i = 0; i < dci_max_reg; i++)
if (driver->dci_tbl[i].pid != 0)
pr_debug("diag: PID = %d, UID = %d, tag = %d\n",
driver->dci_tbl[i].pid, driver->dci_tbl[i].uid, driver->dci_tbl[i].tag);
pr_debug("diag: complete deleting registrations\n");
return success;
} else if (iocmd == DIAG_IOCTL_DCI_SUPPORT) {
if (driver->ch_dci)
support_list = support_list | DIAG_CON_MPSS;
*(uint16_t *)ioarg = support_list;
return DIAG_DCI_NO_ERROR;
} else if (iocmd == DIAG_IOCTL_LSM_DEINIT) {
for (i = 0; i < driver->num_clients; i++)
if (driver->client_map[i].pid == current->tgid)
break;
if (i == -1)
return -EINVAL;
driver->data_ready[i] |= DEINIT_TYPE;
wake_up_interruptible(&driver->wait_q);
success = 1;
} else if (iocmd == DIAG_IOCTL_SWITCH_LOGGING) {
mutex_lock(&driver->diagchar_mutex);
temp = driver->logging_mode;
driver->logging_mode = (int)ioarg;
if (driver->logging_mode == MEMORY_DEVICE_MODE)
driver->mask_check = 1;
if (driver->logging_mode == UART_MODE) {
driver->mask_check = 0;
driver->logging_mode = MEMORY_DEVICE_MODE;
}
driver->logging_process_id = current->tgid;
mutex_unlock(&driver->diagchar_mutex);
if (temp == MEMORY_DEVICE_MODE && driver->logging_mode
== NO_LOGGING_MODE) {
driver->in_busy_1 = 1;
driver->in_busy_2 = 1;
driver->in_busy_qdsp_1 = 1;
driver->in_busy_qdsp_2 = 1;
driver->in_busy_wcnss_1 = 1;
driver->in_busy_wcnss_2 = 1;
#ifdef CONFIG_DIAG_SDIO_PIPE
driver->in_busy_sdio = 1;
#endif
#ifdef CONFIG_DIAG_BRIDGE_CODE
diagfwd_disconnect_bridge(0);
#endif
} else if (temp == NO_LOGGING_MODE && driver->logging_mode
== MEMORY_DEVICE_MODE) {
driver->in_busy_1 = 0;
driver->in_busy_2 = 0;
driver->in_busy_qdsp_1 = 0;
driver->in_busy_qdsp_2 = 0;
driver->in_busy_wcnss_1 = 0;
driver->in_busy_wcnss_2 = 0;
/* Poll SMD channels to check for data*/
if (driver->ch)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_work));
if (driver->chqdsp)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_qdsp_work));
if (driver->ch_wcnss)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_wcnss_work));
#ifdef CONFIG_DIAG_SDIO_PIPE
driver->in_busy_sdio = 0;
/* Poll SDIO channel to check for data */
if (driver->sdio_ch)
queue_work(driver->diag_sdio_wq,
&(driver->diag_read_sdio_work));
#endif
#ifdef CONFIG_DIAG_BRIDGE_CODE
diagfwd_connect_bridge(0);
#endif
}
#ifdef CONFIG_DIAG_OVER_USB
else if (temp == USB_MODE && driver->logging_mode
== NO_LOGGING_MODE) {
diagfwd_disconnect();
#ifdef CONFIG_DIAG_BRIDGE_CODE
diagfwd_disconnect_bridge(0);
#endif
} else if (temp == NO_LOGGING_MODE && driver->logging_mode
== USB_MODE) {
diagfwd_connect();
#ifdef CONFIG_DIAG_BRIDGE_CODE
diagfwd_connect_bridge(0);
#endif
} else if (temp == USB_MODE && driver->logging_mode
== MEMORY_DEVICE_MODE) {
diagfwd_disconnect();
driver->in_busy_1 = 0;
driver->in_busy_2 = 0;
driver->in_busy_qdsp_1 = 0;
driver->in_busy_qdsp_2 = 0;
driver->in_busy_wcnss_1 = 0;
driver->in_busy_wcnss_2 = 0;
/* Poll SMD channels to check for data*/
if (driver->ch)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_work));
if (driver->chqdsp)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_qdsp_work));
if (driver->ch_wcnss)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_wcnss_work));
#ifdef CONFIG_DIAG_SDIO_PIPE
driver->in_busy_sdio = 0;
/* Poll SDIO channel to check for data */
if (driver->sdio_ch)
queue_work(driver->diag_sdio_wq,
&(driver->diag_read_sdio_work));
#endif
#ifdef CONFIG_DIAG_BRIDGE_CODE
diagfwd_cancel_hsic();
diagfwd_connect_bridge(0);
#endif
} else if (temp == MEMORY_DEVICE_MODE &&
driver->logging_mode == USB_MODE) {
diagfwd_connect();
#ifdef CONFIG_DIAG_BRIDGE_CODE
diagfwd_cancel_hsic();
diagfwd_connect_bridge(0);
#endif
}
#endif /* DIAG over USB */
success = 1;
}
return success;
}
long diagchar_ioctl(struct file *filp,
unsigned int iocmd, unsigned long ioarg)
{
int i, j, count_entries = 0, temp;
int success = -1;
void *temp_buf;
uint16_t support_list = 0;
struct diag_dci_client_tbl *params =
kzalloc(sizeof(struct diag_dci_client_tbl), GFP_KERNEL);
struct diag_dci_health_stats stats;
int status;
if (iocmd == DIAG_IOCTL_COMMAND_REG) {
struct bindpkt_params_per_process *pkt_params =
(struct bindpkt_params_per_process *) ioarg;
mutex_lock(&driver->diagchar_mutex);
for (i = 0; i < diag_max_reg; i++) {
if (driver->table[i].process_id == 0) {
diag_add_reg(i, pkt_params->params,
&success, &count_entries);
if (pkt_params->count > count_entries) {
pkt_params->params++;
} else {
mutex_unlock(&driver->diagchar_mutex);
return success;
}
}
}
if (i < diag_threshold_reg) {
/* Increase table size by amount required */
diag_max_reg += pkt_params->count -
count_entries;
/* Make sure size doesnt go beyond threshold */
if (diag_max_reg > diag_threshold_reg) {
diag_max_reg = diag_threshold_reg;
pr_info("diag: best case memory allocation\n");
}
temp_buf = krealloc(driver->table,
diag_max_reg*sizeof(struct
diag_master_table), GFP_KERNEL);
if (!temp_buf) {
diag_max_reg -= pkt_params->count -
count_entries;
pr_alert("diag: Insufficient memory for reg.");
mutex_unlock(&driver->diagchar_mutex);
return 0;
} else {
driver->table = temp_buf;
}
for (j = i; j < diag_max_reg; j++) {
diag_add_reg(j, pkt_params->params,
&success, &count_entries);
if (pkt_params->count > count_entries) {
pkt_params->params++;
} else {
mutex_unlock(&driver->diagchar_mutex);
return success;
}
}
mutex_unlock(&driver->diagchar_mutex);
} else {
mutex_unlock(&driver->diagchar_mutex);
pr_err("Max size reached, Pkt Registration failed for"
" Process %d", current->tgid);
}
success = 0;
} else if (iocmd == DIAG_IOCTL_GET_DELAYED_RSP_ID) {
struct diagpkt_delay_params *delay_params =
(struct diagpkt_delay_params *) ioarg;
if ((delay_params->rsp_ptr) &&
(delay_params->size == sizeof(delayed_rsp_id)) &&
(delay_params->num_bytes_ptr)) {
*((uint16_t *)delay_params->rsp_ptr) =
DIAGPKT_NEXT_DELAYED_RSP_ID(delayed_rsp_id);
*(delay_params->num_bytes_ptr) = sizeof(delayed_rsp_id);
success = 0;
}
} else if (iocmd == DIAG_IOCTL_DCI_REG) {
if (driver->dci_state == DIAG_DCI_NO_REG)
return DIAG_DCI_NO_REG;
if (driver->num_dci_client >= MAX_DCI_CLIENTS)
return DIAG_DCI_NO_REG;
if (copy_from_user(params, (void *)ioarg,
sizeof(struct diag_dci_client_tbl)))
return -EFAULT;
mutex_lock(&driver->dci_mutex);
if (!(driver->num_dci_client))
driver->in_busy_dci = 0;
driver->num_dci_client++;
pr_debug("diag: id = %d\n", driver->dci_client_id);
driver->dci_client_id++;
for (i = 0; i < MAX_DCI_CLIENTS; i++) {
if (driver->dci_client_tbl[i].client == NULL) {
driver->dci_client_tbl[i].client = current;
driver->dci_client_tbl[i].list =
params->list;
driver->dci_client_tbl[i].signal_type =
params->signal_type;
create_dci_log_mask_tbl(driver->
dci_client_tbl[i].dci_log_mask);
create_dci_event_mask_tbl(driver->
dci_client_tbl[i].dci_event_mask);
driver->dci_client_tbl[i].data_len = 0;
driver->dci_client_tbl[i].dci_data =
kzalloc(IN_BUF_SIZE, GFP_KERNEL);
driver->dci_client_tbl[i].total_capacity =
IN_BUF_SIZE;
driver->dci_client_tbl[i].dropped_logs = 0;
driver->dci_client_tbl[i].dropped_events = 0;
driver->dci_client_tbl[i].received_logs = 0;
driver->dci_client_tbl[i].received_events = 0;
break;
}
}
mutex_unlock(&driver->dci_mutex);
return driver->dci_client_id;
} else if (iocmd == DIAG_IOCTL_DCI_DEINIT) {
success = -1;
/* Delete this process from DCI table */
mutex_lock(&driver->dci_mutex);
for (i = 0; i < dci_max_reg; i++)
if (driver->req_tracking_tbl[i].pid == current->tgid)
driver->req_tracking_tbl[i].pid = 0;
for (i = 0; i < MAX_DCI_CLIENTS; i++) {
if (driver->dci_client_tbl[i].client &&
driver->dci_client_tbl[i].client->tgid ==
current->tgid) {
driver->dci_client_tbl[i].client = NULL;
success = i;
break;
}
}
if (success >= 0)
driver->num_dci_client--;
mutex_unlock(&driver->dci_mutex);
return success;
} else if (iocmd == DIAG_IOCTL_DCI_SUPPORT) {
if (driver->ch_dci)
support_list = support_list | DIAG_CON_MPSS;
*(uint16_t *)ioarg = support_list;
return DIAG_DCI_NO_ERROR;
} else if (iocmd == DIAG_IOCTL_DCI_HEALTH_STATS) {
if (copy_from_user(&stats, (void *)ioarg,
sizeof(struct diag_dci_health_stats)))
return -EFAULT;
for (i = 0; i < MAX_DCI_CLIENTS; i++) {
params = &(driver->dci_client_tbl[i]);
if (params->client &&
params->client->tgid == current->tgid) {
stats.dropped_logs = params->dropped_logs;
stats.dropped_events = params->dropped_events;
stats.received_logs = params->received_logs;
stats.received_events = params->received_events;
if (stats.reset_status) {
params->dropped_logs = 0;
params->dropped_events = 0;
params->received_logs = 0;
params->received_events = 0;
}
break;
}
}
if (copy_to_user((void *)ioarg, &stats,
sizeof(struct diag_dci_health_stats)))
return -EFAULT;
return DIAG_DCI_NO_ERROR;
} else if (iocmd == DIAG_IOCTL_LSM_DEINIT) {
for (i = 0; i < driver->num_clients; i++)
if (driver->client_map[i].pid == current->tgid)
break;
if (i == -1)
return -EINVAL;
driver->data_ready[i] |= DEINIT_TYPE;
wake_up_interruptible(&driver->wait_q);
success = 1;
} else if (iocmd == DIAG_IOCTL_SWITCH_LOGGING) {
mutex_lock(&driver->diagchar_mutex);
temp = driver->logging_mode;
driver->logging_mode = (int)ioarg;
if (temp == driver->logging_mode) {
mutex_unlock(&driver->diagchar_mutex);
pr_alert("diag: forbidden logging change requested\n");
return 0;
}
if (driver->logging_mode == MEMORY_DEVICE_MODE) {
diag_clear_hsic_tbl();
driver->mask_check = 1;
if (driver->socket_process) {
/*
* Notify the socket logging process that we
* are switching to MEMORY_DEVICE_MODE
*/
status = send_sig(SIGCONT,
driver->socket_process, 0);
if (status) {
pr_err("diag: %s, Error notifying ",
__func__);
pr_err("socket process, status: %d\n",
status);
}
}
}
if (driver->logging_mode == SOCKET_MODE)
driver->socket_process = current;
if (driver->logging_mode == CALLBACK_MODE)
driver->callback_process = current;
if (driver->logging_mode == UART_MODE ||
driver->logging_mode == SOCKET_MODE ||
driver->logging_mode == CALLBACK_MODE) {
diag_clear_hsic_tbl();
driver->mask_check = 0;
driver->logging_mode = MEMORY_DEVICE_MODE;
}
driver->logging_process_id = current->tgid;
mutex_unlock(&driver->diagchar_mutex);
if (temp == MEMORY_DEVICE_MODE && driver->logging_mode
== NO_LOGGING_MODE) {
driver->in_busy_1 = 1;
driver->in_busy_2 = 1;
driver->in_busy_lpass_1 = 1;
driver->in_busy_lpass_2 = 1;
driver->in_busy_wcnss_1 = 1;
driver->in_busy_wcnss_2 = 1;
#ifdef CONFIG_DIAG_SDIO_PIPE
driver->in_busy_sdio = 1;
#endif
#ifdef CONFIG_DIAG_BRIDGE_CODE
diagfwd_disconnect_bridge(0);
diag_clear_hsic_tbl();
#endif
} else if (temp == NO_LOGGING_MODE && driver->logging_mode
== MEMORY_DEVICE_MODE) {
driver->in_busy_1 = 0;
driver->in_busy_2 = 0;
driver->in_busy_lpass_1 = 0;
driver->in_busy_lpass_2 = 0;
driver->in_busy_wcnss_1 = 0;
driver->in_busy_wcnss_2 = 0;
/* Poll SMD channels to check for data*/
if (driver->ch)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_work));
if (driver->chlpass)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_lpass_work));
if (driver->ch_wcnss)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_wcnss_work));
#ifdef CONFIG_DIAG_SDIO_PIPE
driver->in_busy_sdio = 0;
/* Poll SDIO channel to check for data */
if (driver->sdio_ch)
queue_work(driver->diag_sdio_wq,
&(driver->diag_read_sdio_work));
#endif
#ifdef CONFIG_DIAG_BRIDGE_CODE
diagfwd_connect_bridge(0);
#endif
}
#ifdef CONFIG_DIAG_OVER_USB
else if (temp == USB_MODE && driver->logging_mode
== NO_LOGGING_MODE) {
diagfwd_disconnect();
#ifdef CONFIG_DIAG_BRIDGE_CODE
diagfwd_disconnect_bridge(0);
#endif
} else if (temp == NO_LOGGING_MODE && driver->logging_mode
== USB_MODE) {
diagfwd_connect();
#ifdef CONFIG_DIAG_BRIDGE_CODE
diagfwd_connect_bridge(0);
#endif
} else if (temp == USB_MODE && driver->logging_mode
== MEMORY_DEVICE_MODE) {
diagfwd_disconnect();
driver->in_busy_1 = 0;
driver->in_busy_2 = 0;
driver->in_busy_lpass_1 = 0;
driver->in_busy_lpass_2 = 0;
driver->in_busy_wcnss_1 = 0;
driver->in_busy_wcnss_2 = 0;
/* Poll SMD channels to check for data*/
if (driver->ch)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_work));
if (driver->chlpass)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_lpass_work));
if (driver->ch_wcnss)
queue_work(driver->diag_wq,
&(driver->diag_read_smd_wcnss_work));
#ifdef CONFIG_DIAG_SDIO_PIPE
driver->in_busy_sdio = 0;
/* Poll SDIO channel to check for data */
if (driver->sdio_ch)
queue_work(driver->diag_sdio_wq,
&(driver->diag_read_sdio_work));
#endif
#ifdef CONFIG_DIAG_BRIDGE_CODE
diagfwd_cancel_hsic();
diagfwd_connect_bridge(0);
#endif
} else if (temp == MEMORY_DEVICE_MODE &&
driver->logging_mode == USB_MODE) {
diagfwd_connect();
#ifdef CONFIG_DIAG_BRIDGE_CODE
diag_clear_hsic_tbl();
diagfwd_cancel_hsic();
diagfwd_connect_bridge(0);
#endif
}
#endif /* DIAG over USB */
success = 1;
} else if (iocmd == DIAG_IOCTL_REMOTE_DEV) {
uint16_t remote_dev = diag_get_remote_device_mask();
if (copy_to_user((void *)ioarg, &remote_dev, sizeof(uint16_t)))
success = -EFAULT;
else
success = 1;
}
return success;
}