static int diag_hsic_probe(struct platform_device *pdev)
{
int err = 0;
pr_debug("diag: in %s\n", __func__);
if (!driver->hsic_device_enabled) {
diagmem_hsic_init(driver);
INIT_WORK(&(driver->diag_read_hsic_work),
diag_read_hsic_work_fn);
driver->hsic_device_enabled = 1;
}
/*
* The probe function was called after the usb was connected
* on the legacy channel OR ODL is turned on. Communication over usb
* mdm and hsic needs to be turned on.
*/
if (driver->usb_mdm_connected || (driver->logging_mode ==
MEMORY_DEVICE_MODE)) {
/* The hsic (diag_bridge) platform device driver is enabled */
err = diag_bridge_open(&hsic_diag_bridge_ops);
if (err) {
pr_err("diag: could not open HSIC, err: %d\n", err);
driver->hsic_device_opened = 0;
return err;
}
pr_info("diag: opened HSIC channel\n");
driver->hsic_device_opened = 1;
driver->hsic_ch = 1;
driver->in_busy_hsic_read_on_device = 0;
driver->in_busy_hsic_write = 0;
if (driver->usb_mdm_connected) {
/* Poll USB mdm channel to check for data */
queue_work(driver->diag_bridge_wq,
&driver->diag_read_mdm_work);
}
/* Poll HSIC channel to check for data */
queue_work(driver->diag_bridge_wq,
&driver->diag_read_hsic_work);
}
return err;
}
static int diag_hsic_probe(struct platform_device *pdev)
{
int err = 0;
DIAGFWD_INFO("diag: in %s\n", __func__);
if (!driver->hsic_device_enabled) {
diagmem_hsic_init(driver);
INIT_WORK(&(driver->diag_read_hsic_work),
diag_read_hsic_work_fn);
driver->hsic_device_enabled = 1;
}
if (driver->usb_mdm_connected || (driver->logging_mode ==
MEMORY_DEVICE_MODE)) {
err = diag_bridge_open(&hsic_diag_bridge_ops);
if (err) {
pr_err("diag: could not open HSIC, err: %d\n", err);
driver->hsic_device_opened = 0;
return err;
}
pr_info("diag: opened HSIC channel\n");
driver->hsic_device_opened = 1;
driver->hsic_ch = 1;
driver->in_busy_hsic_read_on_device = 0;
driver->in_busy_hsic_write = 0;
if (driver->usb_mdm_connected) {
queue_work(driver->diag_bridge_wq,
&driver->diag_read_mdm_work);
}
queue_work(driver->diag_bridge_wq,
&driver->diag_read_hsic_work);
}
return err;
}
static int diag_hsic_probe_data(int pdev_id)
{
int err = 0;
int index = hsic_map[pdev_id].struct_idx;
int b_index = hsic_map[pdev_id].bridge_idx;
mutex_lock(&diag_bridge[index].bridge_mutex);
if (!diag_hsic[index].hsic_inited) {
spin_lock_init(&diag_hsic[index].hsic_spinlock);
diag_hsic[index].num_hsic_buf_tbl_entries = 0;
if (diag_hsic[index].hsic_buf_tbl == NULL)
diag_hsic[index].hsic_buf_tbl =
kzalloc(NUM_HSIC_BUF_TBL_ENTRIES *
sizeof(struct diag_write_device), GFP_KERNEL);
if (diag_hsic[index].hsic_buf_tbl == NULL) {
mutex_unlock(&diag_bridge[index].bridge_mutex);
return -ENOMEM;
}
diag_hsic[index].id = index;
diag_hsic[index].count_hsic_pool = 0;
diag_hsic[index].count_hsic_write_pool = 0;
diag_hsic[index].itemsize_hsic = READ_HSIC_BUF_SIZE;
diag_hsic[index].poolsize_hsic = N_MDM_WRITE;
diag_hsic[index].itemsize_hsic_write =
sizeof(struct diag_request);
diag_hsic[index].poolsize_hsic_write = N_MDM_WRITE;
diagmem_hsic_init(index);
INIT_WORK(&(diag_hsic[index].diag_read_hsic_work),
diag_read_hsic_work_fn);
diag_hsic[index].hsic_data_requested =
(driver->logging_mode == MEMORY_DEVICE_MODE) ? 0 : 1;
diag_hsic[index].hsic_inited = 1;
}
/*
* The probe function was called after the usb was connected
* on the legacy channel OR ODL is turned on and hsic data is
* requested. Communication over usb mdm and HSIC needs to be
* turned on.
*/
if ((diag_bridge[index].usb_connected &&
(driver->logging_mode != MEMORY_DEVICE_MODE)) ||
((driver->logging_mode == MEMORY_DEVICE_MODE) &&
diag_hsic[index].hsic_data_requested)) {
if (diag_hsic[index].hsic_device_opened) {
/* should not happen. close it before re-opening */
pr_warn("diag: HSIC channel already opened in probe\n");
diag_bridge_close(hsic_data_bridge_map[index]);
}
hsic_diag_bridge_ops[index].ctxt = (void *)(index);
err = diag_bridge_open(b_index,
&hsic_diag_bridge_ops[index]);
if (err) {
pr_err("diag: could not open HSIC, err: %d\n", err);
diag_hsic[index].hsic_device_opened = 0;
mutex_unlock(&diag_bridge[index].bridge_mutex);
return err;
}
pr_info("diag: opened HSIC bridge, ch = %d\n", index);
diag_hsic[index].hsic_device_opened = 1;
diag_hsic[index].hsic_ch = 1;
diag_hsic[index].in_busy_hsic_read_on_device = 0;
diag_hsic[index].in_busy_hsic_write = 0;
if (diag_bridge[index].usb_connected) {
/* Poll USB mdm channel to check for data */
queue_work(diag_bridge[index].wq,
&diag_bridge[index].diag_read_work);
}
/* Poll HSIC channel to check for data */
queue_work(diag_bridge[index].wq,
&diag_hsic[index].diag_read_hsic_work);
}
/* The HSIC (diag_bridge) platform device driver is enabled */
diag_hsic[index].hsic_device_enabled = 1;
mutex_unlock(&diag_bridge[index].bridge_mutex);
return err;
}
static int diag_hsic_probe(struct platform_device *pdev)
{
int err = 0;
pr_debug("diag: in %s\n", __func__);
mutex_lock(&diag_bridge[HSIC].bridge_mutex);
if (!driver->hsic_inited) {
spin_lock_init(&driver->hsic_spinlock);
driver->num_hsic_buf_tbl_entries = 0;
if (driver->hsic_buf_tbl == NULL)
driver->hsic_buf_tbl = kzalloc(NUM_HSIC_BUF_TBL_ENTRIES
* sizeof(struct diag_write_device), GFP_KERNEL);
if (driver->hsic_buf_tbl == NULL) {
mutex_unlock(&diag_bridge[HSIC].bridge_mutex);
return -ENOMEM;
}
driver->count_hsic_pool = 0;
driver->count_hsic_write_pool = 0;
driver->itemsize_hsic = READ_HSIC_BUF_SIZE;
driver->poolsize_hsic = N_MDM_WRITE;
driver->itemsize_hsic_write = sizeof(struct diag_request);
driver->poolsize_hsic_write = N_MDM_WRITE;
diagmem_hsic_init(driver);
INIT_WORK(&(driver->diag_read_hsic_work),
diag_read_hsic_work_fn);
driver->hsic_inited = 1;
}
if (diag_bridge[HSIC].usb_connected || (driver->logging_mode ==
MEMORY_DEVICE_MODE)) {
if (driver->hsic_device_opened) {
pr_warn("diag: HSIC channel already opened in probe\n");
diag_bridge_close();
}
err = diag_bridge_open(&hsic_diag_bridge_ops);
if (err) {
pr_err("diag: could not open HSIC, err: %d\n", err);
driver->hsic_device_opened = 0;
mutex_unlock(&diag_bridge[HSIC].bridge_mutex);
return err;
}
pr_info("diag: opened HSIC channel\n");
driver->hsic_device_opened = 1;
driver->hsic_ch = 1;
driver->in_busy_hsic_read_on_device = 0;
driver->in_busy_hsic_write = 0;
if (diag_bridge[HSIC].usb_connected) {
queue_work(diag_bridge[HSIC].wq,
&diag_bridge[HSIC].diag_read_work);
}
queue_work(diag_bridge[HSIC].wq,
&driver->diag_read_hsic_work);
}
driver->hsic_device_enabled = 1;
mutex_unlock(&diag_bridge[HSIC].bridge_mutex);
return err;
}
static int diag_hsic_probe(struct platform_device *pdev)
{
int err = 0;
/* pdev->Id will indicate which HSIC is working. 0 stands for HSIC
* or CP1 1 indicates HS-USB or CP2
*/
pr_debug("diag: in %s, ch = %d\n", __func__, pdev->id);
mutex_lock(&diag_bridge[pdev->id].bridge_mutex);
if (!diag_hsic[pdev->id].hsic_inited) {
spin_lock_init(&diag_hsic[pdev->id].hsic_spinlock);
diag_hsic[pdev->id].num_hsic_buf_tbl_entries = 0;
if (diag_hsic[pdev->id].hsic_buf_tbl == NULL)
diag_hsic[pdev->id].hsic_buf_tbl =
kzalloc(NUM_HSIC_BUF_TBL_ENTRIES *
sizeof(struct diag_write_device), GFP_KERNEL);
if (diag_hsic[pdev->id].hsic_buf_tbl == NULL) {
mutex_unlock(&diag_bridge[pdev->id].bridge_mutex);
return -ENOMEM;
}
diag_hsic[pdev->id].id = pdev->id;
diag_hsic[pdev->id].count_hsic_pool = 0;
diag_hsic[pdev->id].count_hsic_write_pool = 0;
diag_hsic[pdev->id].itemsize_hsic = READ_HSIC_BUF_SIZE;
diag_hsic[pdev->id].poolsize_hsic = N_MDM_WRITE;
diag_hsic[pdev->id].itemsize_hsic_write =
sizeof(struct diag_request);
diag_hsic[pdev->id].poolsize_hsic_write = N_MDM_WRITE;
diagmem_hsic_init(pdev->id);
INIT_WORK(&(diag_hsic[pdev->id].diag_read_hsic_work),
diag_read_hsic_work_fn);
diag_hsic[pdev->id].hsic_inited = 1;
}
/*
* The probe function was called after the usb was connected
* on the legacy channel OR ODL is turned on. Communication over usb
* mdm and HSIC needs to be turned on.
*/
if (diag_bridge[pdev->id].usb_connected || (driver->logging_mode ==
MEMORY_DEVICE_MODE)) {
if (diag_hsic[pdev->id].hsic_device_opened) {
/* should not happen. close it before re-opening */
pr_warn("diag: HSIC channel already opened in probe\n");
diag_bridge_close(pdev->id);
}
hsic_diag_bridge_ops[pdev->id].ctxt = (void *)(pdev->id);
err = diag_bridge_open(pdev->id,
&hsic_diag_bridge_ops[pdev->id]);
if (err) {
pr_err("diag: could not open HSIC, err: %d\n", err);
diag_hsic[pdev->id].hsic_device_opened = 0;
mutex_unlock(&diag_bridge[pdev->id].bridge_mutex);
return err;
}
pr_info("diag: opened HSIC bridge, ch = %d\n", pdev->id);
diag_hsic[pdev->id].hsic_device_opened = 1;
diag_hsic[pdev->id].hsic_ch = 1;
diag_hsic[pdev->id].in_busy_hsic_read_on_device = 0;
diag_hsic[pdev->id].in_busy_hsic_write = 0;
if (diag_bridge[pdev->id].usb_connected) {
/* Poll USB mdm channel to check for data */
queue_work(diag_bridge[pdev->id].wq,
&diag_bridge[pdev->id].diag_read_work);
}
/* Poll HSIC channel to check for data */
queue_work(diag_bridge[pdev->id].wq,
&diag_hsic[pdev->id].diag_read_hsic_work);
}
/* The HSIC (diag_bridge) platform device driver is enabled */
diag_hsic[pdev->id].hsic_device_enabled = 1;
mutex_unlock(&diag_bridge[pdev->id].bridge_mutex);
return err;
}
static int diag_hsic_probe(struct platform_device *pdev)
{
int err = 0;
pr_debug("diag: in %s\n", __func__);
if (!driver->hsic_device_enabled) {
driver->read_len_mdm = 0;
if (driver->usb_buf_mdm_out == NULL)
driver->usb_buf_mdm_out = kzalloc(USB_MAX_OUT_BUF,
GFP_KERNEL);
if (driver->usb_buf_mdm_out == NULL)
goto err;
if (driver->usb_read_mdm_ptr == NULL)
driver->usb_read_mdm_ptr = kzalloc(
sizeof(struct diag_request), GFP_KERNEL);
if (driver->usb_read_mdm_ptr == NULL)
goto err;
#ifdef CONFIG_DIAG_OVER_USB
INIT_WORK(&(driver->diag_read_mdm_work), diag_read_mdm_work_fn);
#endif
diagmem_hsic_init(driver);
INIT_WORK(&(driver->diag_read_hsic_work),
diag_read_hsic_work_fn);
driver->hsic_device_enabled = 1;
}
/*
* The probe function was called after the usb was connected
* on the legacy channel OR ODL is turned on. Communication over usb
* mdm and hsic needs to be turned on.
*/
if (driver->usb_mdm_connected || (driver->logging_mode ==
MEMORY_DEVICE_MODE)) {
/* The hsic (diag_bridge) platform device driver is enabled */
err = diag_bridge_open(&hsic_diag_bridge_ops);
if (err) {
pr_err("diag: could not open HSIC, err: %d\n", err);
driver->hsic_device_opened = 0;
return err;
}
pr_info("diag: opened HSIC channel\n");
driver->hsic_device_opened = 1;
driver->hsic_ch = 1;
driver->in_busy_hsic_read_on_device = 0;
driver->in_busy_hsic_write = 0;
if (driver->usb_mdm_connected) {
/* Poll USB mdm channel to check for data */
queue_work(driver->diag_hsic_wq,
&driver->diag_read_mdm_work);
}
/* Poll HSIC channel to check for data */
queue_work(driver->diag_hsic_wq, &driver->diag_read_hsic_work);
}
return err;
err:
pr_err("DIAG could not initialize buf for HSIC\n");
kfree(driver->usb_buf_mdm_out);
kfree(driver->usb_read_mdm_ptr);
if (driver->diag_hsic_wq)
destroy_workqueue(driver->diag_hsic_wq);
return -ENOMEM;
}
