Changeset 8c3c756 in mainline

Timestamp:

2011-02-04T16:12:46Z (14 years ago)

Author:

Lubos Slovak <lubos.slovak@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

4837092

Parents:

9e7cdf8

Message:

Setting configuration + key press / key release tracking.

• Added list of pressed keys to usb_hid_dev_kbd_t - its size is determined when the configuration is set. Now hard-wired to count of pressed keys supported by boot protocol (6).
• Added function for comparing new keys with old ones and sending events

Location:

uspace/drv/usbhid

Files:

• hid.h (modified) (2 diffs)
• main.c (modified) (10 diffs)

uspace/drv/usbhid/hid.h

@@ -37 +37 @@
 #define USBHID_HID_H_
 
+#include <stdint.h>
+
 #include <usb/classes/hid.h>
 #include <driver.h>
@@ -74 +76 @@
         usb_device_connection_t wire;
         usb_endpoint_pipe_t poll_pipe;
+        
+        uint8_t *keycodes;
+        size_t keycode_count;
 } usb_hid_dev_kbd_t;
 

uspace/drv/usbhid/main.c

@@ -51 +51 @@
 #include <usb/debug.h>
 #include <io/console.h>
+#include <stdint.h>
 #include "hid.h"
 #include "descparser.h"
@@ -61 +62 @@
 
 #define GUESSED_POLL_ENDPOINT 1
+#define BOOTP_REPORT_SIZE 6
 
 static void default_connection_handler(device_t *, ipc_callid_t, ipc_call_t *);
@@ -231 +233 @@
         usb_log_debug("Sending key %d to the console\n", ev.key);
         assert(console_callback_phone != -1);
-        async_msg_4(console_callback_phone, KBD_EVENT, ev.type, ev.key, ev.mods, ev.c);
+        async_msg_4(console_callback_phone, KBD_EVENT, ev.type, ev.key, 
+            ev.mods, ev.c);
 }
 /*
@@ -239 +242 @@
         /*
          * TODO:
-         * 1) key press / key release - how does the keyboard notify about release?
+         * 1) key press / key release - how does the keyboard notify about 
+         *    release?
          * 2) layouts (use the already defined), not important now
          * 3) 
          */
 
+static void usbkbd_check_modifier_changes(usb_hid_dev_kbd_t *kbd_dev,
+    uint8_t modifiers)
+{
+        // ignore for now
+        // modifiers should be sent as normal keys to usbkbd_parse_scancode()!!
+        // so it would be better if I received it from report parser in that way
+}
+
+static void usbkbd_check_key_changes(usb_hid_dev_kbd_t *kbd_dev, 
+    const uint8_t *key_codes)
+{
+        // TODO: phantom state!!
+        
+        unsigned int key;
+        int i, j;
+        
+        // TODO: quite dummy right now, think of better implementation
+        
+        // key releases
+        for (j = 0; j < kbd_dev->keycode_count; ++j) {
+                // try to find the old key in the new key list
+                i = 0;
+                while (i < kbd_dev->keycode_count
+                    && key_codes[i] != kbd_dev->keycodes[j]) {
+                        ++j;
+                }
+                
+                if (j == kbd_dev->keycode_count) {
+                        // not found, i.e. the key was released
+                        key = usbkbd_parse_scancode(kbd_dev->keycodes[j]);
+                        kbd_push_ev(KEY_RELEASE, key);
+                } else {
+                        // found, nothing happens
+                }
+        }
+        
+        // key presses
+        for (i = 0; i < kbd_dev->keycode_count; ++i) {
+                // try to find the new key in the old key list
+                j = 0;
+                while (j < kbd_dev->keycode_count 
+                    && kbd_dev->keycodes[j] != key_codes[i]) { 
+                        ++j;
+                }
+                
+                assert(kbd_dev->keycode_count <= kbd_dev->keycode_count);
+                
+                if (j == kbd_dev->keycode_count) {
+                        // not found, i.e. new key pressed
+                        key = usbkbd_parse_scancode(key_codes[i]);
+                        kbd_push_ev(KEY_PRESS, key);
+                } else {
+                        // found, nothing happens
+                }
+        }
+}
+
 /*
  * Callbacks for parser
@@ -250 +311 @@
     uint8_t modifiers, void *arg)
 {
+        if (arg == NULL) {
+                usb_log_warning("Missing argument in callback "
+                    "usbkbd_process_keycodes().\n");
+                return;
+        }
+
         usb_log_debug2("Got keys from parser: ");
         unsigned i;
         for (i = 0; i < count; ++i) {
                 usb_log_debug2("%d ", key_codes[i]);
-                // TODO: Key press / release
-                unsigned int key = usbkbd_parse_scancode(key_codes[i]);
-                kbd_push_ev(KEY_PRESS, key);
         }
         usb_log_debug2("\n");
+        
+        usb_hid_dev_kbd_t *kbd_dev = (usb_hid_dev_kbd_t *)arg;
+        
+        if (count != kbd_dev->keycode_count) {
+                usb_log_warning("Number of received keycodes (%d) differs from"
+                    " expected number (%d).\n", count, kbd_dev->keycode_count);
+                return;
+        }
+        
+        usbkbd_check_modifier_changes(kbd_dev, modifiers);
+        usbkbd_check_key_changes(kbd_dev, key_codes);
 }
 
@@ -271 +346 @@
         for (i = 0; i < kbd_dev->conf->config_descriptor.interface_count; ++i) {
                 // TODO: endianness
-                uint16_t length = 
-                    kbd_dev->conf->interfaces[i].hid_desc.report_desc_info.length;
+                uint16_t length =  kbd_dev->conf->interfaces[i].hid_desc.
+                    report_desc_info.length;
                 size_t actual_size = 0;
 
                 // allocate space for the report descriptor
-                kbd_dev->conf->interfaces[i].report_desc = (uint8_t *)malloc(length);
+                kbd_dev->conf->interfaces[i].report_desc = 
+                    (uint8_t *)malloc(length);
                 
                 // get the descriptor from the device
-                int rc = usb_drv_req_get_descriptor(kbd_dev->device->parent_phone,
-                    kbd_dev->address, USB_REQUEST_TYPE_CLASS, USB_DESCTYPE_HID_REPORT, 
+                int rc = usb_drv_req_get_descriptor(
+                    kbd_dev->device->parent_phone, kbd_dev->address, 
+                    USB_REQUEST_TYPE_CLASS, USB_DESCTYPE_HID_REPORT, 
                     0, i, kbd_dev->conf->interfaces[i].report_desc, length, 
                     &actual_size);
@@ -355 +432 @@
          * 1) select one configuration (lets say the first)
          * 2) how many interfaces?? how to select one??
-         *    ("The default setting for an interface is always alternate setting zero.")
+         *    ("The default setting for an interface is always alternate 
+         *      setting zero.")
          * 3) find endpoint which is IN and INTERRUPT (parse), save its number
          *    as the endpoint for polling
@@ -403 +481 @@
          */
 
-        // TODO: get descriptors, parse descriptors and save endpoints
         usbkbd_process_descriptors(kbd_dev);
-
+        
+        // save the size of the report
+        kbd_dev->keycode_count = BOOTP_REPORT_SIZE;
+        kbd_dev->keycodes = (uint8_t *)calloc(
+            kbd_dev->keycode_count * sizeof(uint8_t));
+        
+        if (kbd_dev->keycodes == NULL) {
+                usb_log_fatal("No memory!\n");
+                goto error_leave;
+        }
+        
+        // set configuration to the first one
+        // TODO: handle case with no configurations
+        usb_drv_req_set_configuration(kbd_dev->device->parent_phone,
+            kbd_dev->address, 
+            kbd_dev->conf->config_descriptor.configuration_number);
+        
         /*
          * Initialize the backing connection to the host controller.
@@ -440 +533 @@
         usb_hid_report_in_callbacks_t *callbacks =
             (usb_hid_report_in_callbacks_t *)malloc(
-                sizeof(usb_hid_report_in_callbacks_t));
+                sizeof(usb_hid_report_in_callbacks_t));
         callbacks->keyboard = usbkbd_process_keycodes;
 
@@ -449 +542 @@
         //dump_buffer("bufffer: ", buffer, actual_size);
         int rc = usb_hid_boot_keyboard_input_report(buffer, actual_size,
-            callbacks, NULL);
+            callbacks, kbd_dev);
         
         if (rc != EOK) {