static void logi_dj_recv_forward_report(struct dj_receiver_dev *djrcv_dev,
struct dj_report *dj_report)
{
/* We are called from atomic context (tasklet && djrcv->lock held) */
struct dj_device *dj_device;
dj_device = djrcv_dev->paired_dj_devices[dj_report->device_index];
if (dj_device == NULL) {
dbg_hid("djrcv_dev->paired_dj_devices[dj_report->device_index]"
" is NULL, index %d\n", dj_report->device_index);
return;
}
if ((dj_report->report_type > ARRAY_SIZE(hid_reportid_size_map) - 1) ||
(hid_reportid_size_map[dj_report->report_type] == 0)) {
dbg_hid("invalid report type:%x\n", dj_report->report_type);
return;
}
if (hid_input_report(dj_device->hdev,
HID_INPUT_REPORT, &dj_report->report_type,
hid_reportid_size_map[dj_report->report_type], 1)) {
dbg_hid("hid_input_report error\n");
}
}
static void logi_dj_recv_forward_report(struct dj_receiver_dev *djrcv_dev,
struct dj_report *dj_report)
{
struct dj_device *dj_device;
dj_device = djrcv_dev->paired_dj_devices[dj_report->device_index];
if (dj_device == NULL) {
dbg_hid("djrcv_dev->paired_dj_devices[dj_report->device_index]"
" is NULL, index %d\n", dj_report->device_index);
kfifo_in(&djrcv_dev->notif_fifo, dj_report, sizeof(struct dj_report));
if (schedule_work(&djrcv_dev->work) == 0) {
dbg_hid("%s: did not schedule the work item, was already "
"queued\n", __func__);
}
return;
}
if ((dj_report->report_type > ARRAY_SIZE(hid_reportid_size_map) - 1) ||
(hid_reportid_size_map[dj_report->report_type] == 0)) {
dbg_hid("invalid report type:%x\n", dj_report->report_type);
return;
}
if (hid_input_report(dj_device->hdev,
HID_INPUT_REPORT, &dj_report->report_type,
hid_reportid_size_map[dj_report->report_type], 1)) {
dbg_hid("hid_input_report error\n");
}
}
static void logi_dj_recv_forward_null_report(struct dj_receiver_dev *djrcv_dev,
struct dj_report *dj_report)
{
/* We are called from atomic context (tasklet && djrcv->lock held) */
unsigned int i;
u8 reportbuffer[MAX_REPORT_SIZE];
struct dj_device *djdev;
djdev = djrcv_dev->paired_dj_devices[dj_report->device_index];
if (!djdev) {
dbg_hid("djrcv_dev->paired_dj_devices[dj_report->device_index]"
" is NULL, index %d\n", dj_report->device_index);
return;
}
memset(reportbuffer, 0, sizeof(reportbuffer));
for (i = 0; i < NUMBER_OF_HID_REPORTS; i++) {
if (djdev->reports_supported & (1 << i)) {
reportbuffer[0] = i;
if (hid_input_report(djdev->hdev,
HID_INPUT_REPORT,
reportbuffer,
hid_reportid_size_map[i], 1)) {
dbg_hid("hid_input_report error sending null "
"report\n");
}
}
}
}
static void hid_irq_in(struct urb *urb)
{
struct hid_device *hid = urb->context;
struct usbhid_device *usbhid = hid->driver_data;
int status;
switch (urb->status) {
case 0: /* success */
usbhid_mark_busy(usbhid);
usbhid->retry_delay = 0;
hid_input_report(urb->context, HID_INPUT_REPORT,
urb->transfer_buffer,
urb->actual_length, 1);
/*
* autosuspend refused while keys are pressed
* because most keyboards don't wake up when
* a key is released
*/
if (hid_check_keys_pressed(hid))
set_bit(HID_KEYS_PRESSED, &usbhid->iofl);
else
clear_bit(HID_KEYS_PRESSED, &usbhid->iofl);
break;
case -EOVERFLOW:
case -EPIPE: /* stall */
usbhid_mark_busy(usbhid);
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
set_bit((urb->status == -EPIPE)? HID_CLEAR_HALT:HID_RESET_PENDING, &usbhid->iofl);
schedule_work(&usbhid->reset_work);
return;
case -ECONNRESET: /* unlink */
case -ENOENT:
case -ESHUTDOWN: /* unplug */
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
return;
case -EILSEQ: /* protocol error or unplug */
case -EPROTO: /* protocol error or unplug */
case -ETIME: /* protocol error or unplug */
case -ETIMEDOUT: /* Should never happen, but... */
usbhid_mark_busy(usbhid);
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
hid_io_error(hid);
return;
default: /* error */
dev_warn(&urb->dev->dev, "input irq status %d "
"received\n", urb->status);
}
status = usb_submit_urb(urb, GFP_ATOMIC);
if (status) {
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
if (status != -EPERM) {
err_hid("can't resubmit intr, %s-%s/input%d, status %d",
hid_to_usb_dev(hid)->bus->bus_name,
hid_to_usb_dev(hid)->devpath,
usbhid->ifnum, status);
hid_io_error(hid);
}
}
}
static int uhid_dev_input(struct uhid_device *uhid, struct uhid_event *ev)
{
if (!uhid->running)
return -EINVAL;
return hid_input_report(uhid->hid, HID_INPUT_REPORT, ev->u.input.data,
min_t(size_t, ev->u.input.size, UHID_DATA_MAX), 0);
}
static void hid_irq_in(struct urb *urb)
{
struct hid_device *hid = urb->context;
struct usbhid_device *usbhid = hid->driver_data;
int status;
switch (urb->status) {
case 0:
usbhid_mark_busy(usbhid);
usbhid->retry_delay = 0;
hid_input_report(urb->context, HID_INPUT_REPORT,
urb->transfer_buffer,
urb->actual_length, 1);
if (hid_check_keys_pressed(hid))
set_bit(HID_KEYS_PRESSED, &usbhid->iofl);
else
clear_bit(HID_KEYS_PRESSED, &usbhid->iofl);
break;
case -EPIPE:
usbhid_mark_busy(usbhid);
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
set_bit(HID_CLEAR_HALT, &usbhid->iofl);
schedule_work(&usbhid->reset_work);
return;
case -ECONNRESET:
case -ENOENT:
case -ESHUTDOWN:
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
return;
case -EILSEQ:
case -EPROTO:
case -ETIME:
case -ETIMEDOUT:
usbhid_mark_busy(usbhid);
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
hid_io_error(hid);
return;
default:
dev_warn(&urb->dev->dev, "input irq status %d "
"received\n", urb->status);
}
status = usb_submit_urb(urb, GFP_ATOMIC);
if (status) {
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
if (status != -EPERM) {
err_hid("can't resubmit intr, %s-%s/input%d, status %d",
hid_to_usb_dev(hid)->bus->bus_name,
hid_to_usb_dev(hid)->devpath,
usbhid->ifnum, status);
hid_io_error(hid);
}
}
}
static ssize_t bthid_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
{
unsigned char *buf;
struct bthid_device *p_dev = file->private_data;
/*
#ifdef CONFIG_DEBUG_PRINTK
printk("######## bthid_write: count = %d ########\n", count);
#else
;
#endif
*/
if (p_dev->dscp_set == 0) {
#ifdef CONFIG_DEBUG_PRINTK
printk(KERN_INFO "bthid_write: Oops, HID report descriptor not configured\n");
#else
;
#endif
return 0;
}
buf = kmalloc(count + 1, GFP_KERNEL);
if (!buf)
{
return -ENOMEM;
}
if (copy_from_user(buf, buffer, count))
{
kfree(buf);
return -EFAULT;
}
if (p_dev->hid)
{
hid_input_report(p_dev->hid, HID_INPUT_REPORT, buf, count, 1);
}
kfree(buf);
/*
#ifdef CONFIG_DEBUG_PRINTK
printk("######## bthid_write: done ########\n");
#else
;
#endif
*/
return 0;
}
static void logi_dj_recv_forward_null_report(struct dj_receiver_dev *djrcv_dev,
struct dj_report *dj_report)
{
unsigned int i;
u8 reportbuffer[MAX_REPORT_SIZE];
struct dj_device *djdev;
djdev = djrcv_dev->paired_dj_devices[dj_report->device_index];
if (!djdev) {
dbg_hid("djrcv_dev->paired_dj_devices[dj_report->device_index]"
" is NULL, index %d\n", dj_report->device_index);
kfifo_in(&djrcv_dev->notif_fifo, dj_report, sizeof(struct dj_report));
if (schedule_work(&djrcv_dev->work) == 0) {
dbg_hid("%s: did not schedule the work item, was already "
"queued\n", __func__);
}
return;
}
memset(reportbuffer, 0, sizeof(reportbuffer));
for (i = 0; i < NUMBER_OF_HID_REPORTS; i++) {
if (djdev->reports_supported & (1 << i)) {
reportbuffer[0] = i;
if (hid_input_report(djdev->hdev,
HID_INPUT_REPORT,
reportbuffer,
hid_reportid_size_map[i], 1)) {
dbg_hid("hid_input_report error sending null "
"report\n");
}
}
}
}
static void hid_irq_in(struct urb *urb)
{
struct hid_device *hid = urb->context;
struct usbhid_device *usbhid = hid->driver_data;
int status;
switch (urb->status) {
case 0: /* success */
usbhid_mark_busy(usbhid);
usbhid->retry_delay = 0;
#if defined(CONFIG_TOUCHSCREEN_NEXIO_USB)
if((hid->vendor == NEXIO_USB_TOUCH_VENDOR) && (hid->product == NEXIO_USB_TOUCH_PRODUCT)) {
if(nexio_touch_driver_open) {
nexio_touch_report_data(urb->transfer_buffer, urb->actual_length);
}
}
else
#endif
#if defined(CONFIG_TOUCHSCREEN_EGALAX_USB)
if((hid->vendor == EGALAX_USB_TOUCH_VENDOR) && (hid->product == EGALAX_USB_TOUCH_PRODUCT)) {
if(egalax_touch_driver_open) {
egalax_touch_report_data(urb->transfer_buffer, urb->actual_length);
}
}
else
#endif
{
hid_input_report(urb->context, HID_INPUT_REPORT,
urb->transfer_buffer,
urb->actual_length, 1);
/*
* autosuspend refused while keys are pressed
* because most keyboards don't wake up when
* a key is released
*/
if (hid_check_keys_pressed(hid))
set_bit(HID_KEYS_PRESSED, &usbhid->iofl);
else
clear_bit(HID_KEYS_PRESSED, &usbhid->iofl);
}
break;
case -EPIPE: /* stall */
usbhid_mark_busy(usbhid);
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
set_bit(HID_CLEAR_HALT, &usbhid->iofl);
schedule_work(&usbhid->reset_work);
return;
case -ECONNRESET: /* unlink */
case -ENOENT:
case -ESHUTDOWN: /* unplug */
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
return;
case -EILSEQ: /* protocol error or unplug */
case -EPROTO: /* protocol error or unplug */
case -ETIME: /* protocol error or unplug */
case -ETIMEDOUT: /* Should never happen, but... */
usbhid_mark_busy(usbhid);
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
hid_io_error(hid);
return;
default: /* error */
hid_warn(urb->dev, "input irq status %d received\n",
urb->status);
}
status = usb_submit_urb(urb, GFP_ATOMIC);
if (status) {
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
if (status != -EPERM) {
hid_err(hid, "can't resubmit intr, %s-%s/input%d, status %d\n",
hid_to_usb_dev(hid)->bus->bus_name,
hid_to_usb_dev(hid)->devpath,
usbhid->ifnum, status);
hid_io_error(hid);
}
}
}
static void mousevsc_on_receive(struct hv_device *device,
struct vmpacket_descriptor *packet)
{
struct pipe_prt_msg *pipe_msg;
struct synthhid_msg *hid_msg;
struct mousevsc_dev *input_dev = hv_get_drvdata(device);
struct synthhid_input_report *input_report;
pipe_msg = (struct pipe_prt_msg *)((unsigned long)packet +
(packet->offset8 << 3));
if (pipe_msg->type != PIPE_MESSAGE_DATA)
return;
hid_msg = (struct synthhid_msg *)pipe_msg->data;
switch (hid_msg->header.type) {
case SYNTH_HID_PROTOCOL_RESPONSE:
/*
* While it will be impossible for us to protect against
* malicious/buggy hypervisor/host, add a check here to
* ensure we don't corrupt memory.
*/
if ((pipe_msg->size + sizeof(struct pipe_prt_msg)
- sizeof(unsigned char))
> sizeof(struct mousevsc_prt_msg)) {
WARN_ON(1);
break;
}
memcpy(&input_dev->protocol_resp, pipe_msg,
pipe_msg->size + sizeof(struct pipe_prt_msg) -
sizeof(unsigned char));
complete(&input_dev->wait_event);
break;
case SYNTH_HID_INITIAL_DEVICE_INFO:
WARN_ON(pipe_msg->size < sizeof(struct hv_input_dev_info));
/*
* Parse out the device info into device attr,
* hid desc and report desc
*/
mousevsc_on_receive_device_info(input_dev,
(struct synthhid_device_info *)pipe_msg->data);
break;
case SYNTH_HID_INPUT_REPORT:
input_report =
(struct synthhid_input_report *)pipe_msg->data;
if (!input_dev->init_complete)
break;
hid_input_report(input_dev->hid_device,
HID_INPUT_REPORT, input_report->buffer,
input_report->header.size, 1);
break;
default:
pr_err("unsupported hid msg type - type %d len %d",
hid_msg->header.type, hid_msg->header.size);
break;
}
}
static void mousevsc_on_receive(struct hv_device *device,
struct vmpacket_descriptor *packet)
{
struct pipe_prt_msg *pipe_msg;
struct synthhid_msg *hid_msg;
struct mousevsc_dev *input_dev = hv_get_drvdata(device);
struct synthhid_input_report *input_report;
pipe_msg = (struct pipe_prt_msg *)((unsigned long)packet +
(packet->offset8 << 3));
if (pipe_msg->type != PIPE_MESSAGE_DATA)
return;
hid_msg = (struct synthhid_msg *)pipe_msg->data;
switch (hid_msg->header.type) {
case SYNTH_HID_PROTOCOL_RESPONSE:
/*
*/
if ((pipe_msg->size + sizeof(struct pipe_prt_msg)
- sizeof(unsigned char))
> sizeof(struct mousevsc_prt_msg)) {
WARN_ON(1);
break;
}
memcpy(&input_dev->protocol_resp, pipe_msg,
pipe_msg->size + sizeof(struct pipe_prt_msg) -
sizeof(unsigned char));
complete(&input_dev->wait_event);
break;
case SYNTH_HID_INITIAL_DEVICE_INFO:
WARN_ON(pipe_msg->size < sizeof(struct hv_input_dev_info));
/*
*/
mousevsc_on_receive_device_info(input_dev,
(struct synthhid_device_info *)pipe_msg->data);
break;
case SYNTH_HID_INPUT_REPORT:
input_report =
(struct synthhid_input_report *)pipe_msg->data;
if (!input_dev->init_complete)
break;
hid_input_report(input_dev->hid_device,
HID_INPUT_REPORT, input_report->buffer,
input_report->header.size, 1);
break;
default:
pr_err("unsupported hid msg type - type %d len %d",
hid_msg->header.type, hid_msg->header.size);
break;
}
}
/**
* process_recv() - Received and parse incoming packet
* @hid_ishtp_cl: Client instance to get stats
* @recv_buf: Raw received host interface message
* @data_len: length of the message
*
* Parse the incoming packet. If it is a response packet then it will update
* per instance flags and wake up the caller waiting to for the response.
*/
static void process_recv(struct ishtp_cl *hid_ishtp_cl, void *recv_buf,
size_t data_len)
{
struct hostif_msg *recv_msg;
unsigned char *payload;
struct device_info *dev_info;
int i, j;
size_t payload_len, total_len, cur_pos;
int report_type;
struct report_list *reports_list;
char *reports;
size_t report_len;
struct ishtp_cl_data *client_data = hid_ishtp_cl->client_data;
int curr_hid_dev = client_data->cur_hid_dev;
if (data_len < sizeof(struct hostif_msg_hdr)) {
dev_err(&client_data->cl_device->dev,
"[hid-ish]: error, received %u which is less than data header %u\n",
(unsigned int)data_len,
(unsigned int)sizeof(struct hostif_msg_hdr));
++client_data->bad_recv_cnt;
ish_hw_reset(hid_ishtp_cl->dev);
return;
}
payload = recv_buf + sizeof(struct hostif_msg_hdr);
total_len = data_len;
cur_pos = 0;
do {
recv_msg = (struct hostif_msg *)(recv_buf + cur_pos);
payload_len = recv_msg->hdr.size;
/* Sanity checks */
if (cur_pos + payload_len + sizeof(struct hostif_msg) >
total_len) {
++client_data->bad_recv_cnt;
report_bad_packet(hid_ishtp_cl, recv_msg, cur_pos,
payload_len);
ish_hw_reset(hid_ishtp_cl->dev);
break;
}
hid_ishtp_trace(client_data, "%s %d\n",
__func__, recv_msg->hdr.command & CMD_MASK);
switch (recv_msg->hdr.command & CMD_MASK) {
case HOSTIF_DM_ENUM_DEVICES:
if ((!(recv_msg->hdr.command & ~CMD_MASK) ||
client_data->init_done)) {
++client_data->bad_recv_cnt;
report_bad_packet(hid_ishtp_cl, recv_msg,
cur_pos,
payload_len);
ish_hw_reset(hid_ishtp_cl->dev);
break;
}
client_data->hid_dev_count = (unsigned int)*payload;
if (!client_data->hid_devices)
client_data->hid_devices = devm_kzalloc(
&client_data->cl_device->dev,
client_data->hid_dev_count *
sizeof(struct device_info),
GFP_KERNEL);
if (!client_data->hid_devices) {
dev_err(&client_data->cl_device->dev,
"Mem alloc failed for hid device info\n");
wake_up_interruptible(&client_data->init_wait);
break;
}
for (i = 0; i < client_data->hid_dev_count; ++i) {
if (1 + sizeof(struct device_info) * i >=
payload_len) {
dev_err(&client_data->cl_device->dev,
"[hid-ish]: [ENUM_DEVICES]: content size %lu is bigger than payload_len %u\n",
1 + sizeof(struct device_info)
* i,
(unsigned int)payload_len);
}
if (1 + sizeof(struct device_info) * i >=
data_len)
break;
dev_info = (struct device_info *)(payload + 1 +
sizeof(struct device_info) * i);
if (client_data->hid_devices)
memcpy(client_data->hid_devices + i,
dev_info,
sizeof(struct device_info));
}
client_data->enum_devices_done = true;
wake_up_interruptible(&client_data->init_wait);
break;
case HOSTIF_GET_HID_DESCRIPTOR:
if ((!(recv_msg->hdr.command & ~CMD_MASK) ||
client_data->init_done)) {
++client_data->bad_recv_cnt;
report_bad_packet(hid_ishtp_cl, recv_msg,
cur_pos,
payload_len);
ish_hw_reset(hid_ishtp_cl->dev);
break;
}
if (!client_data->hid_descr[curr_hid_dev])
client_data->hid_descr[curr_hid_dev] =
devm_kmalloc(&client_data->cl_device->dev,
payload_len, GFP_KERNEL);
if (client_data->hid_descr[curr_hid_dev]) {
memcpy(client_data->hid_descr[curr_hid_dev],
payload, payload_len);
client_data->hid_descr_size[curr_hid_dev] =
payload_len;
client_data->hid_descr_done = true;
}
wake_up_interruptible(&client_data->init_wait);
break;
case HOSTIF_GET_REPORT_DESCRIPTOR:
if ((!(recv_msg->hdr.command & ~CMD_MASK) ||
client_data->init_done)) {
++client_data->bad_recv_cnt;
report_bad_packet(hid_ishtp_cl, recv_msg,
cur_pos,
payload_len);
ish_hw_reset(hid_ishtp_cl->dev);
break;
}
if (!client_data->report_descr[curr_hid_dev])
client_data->report_descr[curr_hid_dev] =
devm_kmalloc(&client_data->cl_device->dev,
payload_len, GFP_KERNEL);
if (client_data->report_descr[curr_hid_dev]) {
memcpy(client_data->report_descr[curr_hid_dev],
payload,
payload_len);
client_data->report_descr_size[curr_hid_dev] =
payload_len;
client_data->report_descr_done = true;
}
wake_up_interruptible(&client_data->init_wait);
break;
case HOSTIF_GET_FEATURE_REPORT:
report_type = HID_FEATURE_REPORT;
goto do_get_report;
case HOSTIF_GET_INPUT_REPORT:
report_type = HID_INPUT_REPORT;
do_get_report:
/* Get index of device that matches this id */
for (i = 0; i < client_data->num_hid_devices; ++i) {
if (recv_msg->hdr.device_id ==
client_data->hid_devices[i].dev_id)
if (client_data->hid_sensor_hubs[i]) {
hid_input_report(
client_data->hid_sensor_hubs[
i],
report_type, payload,
payload_len, 0);
ishtp_hid_wakeup(
client_data->hid_sensor_hubs[
i]);
break;
}
}
break;
case HOSTIF_SET_FEATURE_REPORT:
/* Get index of device that matches this id */
for (i = 0; i < client_data->num_hid_devices; ++i) {
if (recv_msg->hdr.device_id ==
client_data->hid_devices[i].dev_id)
if (client_data->hid_sensor_hubs[i]) {
ishtp_hid_wakeup(
client_data->hid_sensor_hubs[
i]);
break;
}
}
break;
case HOSTIF_PUBLISH_INPUT_REPORT:
report_type = HID_INPUT_REPORT;
for (i = 0; i < client_data->num_hid_devices; ++i)
if (recv_msg->hdr.device_id ==
client_data->hid_devices[i].dev_id)
if (client_data->hid_sensor_hubs[i])
hid_input_report(
client_data->hid_sensor_hubs[
i],
report_type, payload,
payload_len, 0);
break;
case HOSTIF_PUBLISH_INPUT_REPORT_LIST:
report_type = HID_INPUT_REPORT;
reports_list = (struct report_list *)payload;
reports = (char *)reports_list->reports;
for (j = 0; j < reports_list->num_of_reports; j++) {
recv_msg = (struct hostif_msg *)(reports +
sizeof(uint16_t));
report_len = *(uint16_t *)reports;
payload = reports + sizeof(uint16_t) +
sizeof(struct hostif_msg_hdr);
payload_len = report_len -
sizeof(struct hostif_msg_hdr);
for (i = 0; i < client_data->num_hid_devices;
++i)
if (recv_msg->hdr.device_id ==
client_data->hid_devices[i].dev_id &&
client_data->hid_sensor_hubs[i]) {
hid_input_report(
client_data->hid_sensor_hubs[
i],
report_type,
payload, payload_len,
0);
}
reports += sizeof(uint16_t) + report_len;
}
break;
default:
++client_data->bad_recv_cnt;
report_bad_packet(hid_ishtp_cl, recv_msg, cur_pos,
payload_len);
ish_hw_reset(hid_ishtp_cl->dev);
break;
}
if (!cur_pos && cur_pos + payload_len +
sizeof(struct hostif_msg) < total_len)
++client_data->multi_packet_cnt;
cur_pos += payload_len + sizeof(struct hostif_msg);
payload += payload_len + sizeof(struct hostif_msg);
} while (cur_pos < total_len);
}