Changeset 8365533 in mainline for uspace/drv/usbhub/utils.c

Timestamp:

2010-12-12T10:54:43Z (13 years ago)

Author:

Lubos Slovak <lubos.slovak@…>

Branches:

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

Children:

8dc569a, ec6ab88

Parents:

243cb86 (diff), 5174c62 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge from development

File:

• uspace/drv/usbhub/utils.c (modified) (11 diffs)

uspace/drv/usbhub/utils.c

@@ -43 +43 @@
 #include <usb/classes/hub.h>
 #include "usbhub.h"
+#include "usbhub_private.h"
+#include "port_status.h"
+#include <usb/devreq.h>
 
 static void check_hub_changes(void);
@@ -53 +56 @@
 //
 //*********************************************
+
+//hub descriptor utils
 
 void * usb_serialize_hub_descriptor(usb_hub_descriptor_t * descriptor) {
@@ -84 +89 @@
 usb_hub_descriptor_t * usb_deserialize_hub_desriptor(void * serialized_descriptor) {
         uint8_t * sdescriptor = (uint8_t*) serialized_descriptor;
-        if (sdescriptor[1] != USB_DESCTYPE_HUB) return NULL;
-        usb_hub_descriptor_t * result = (usb_hub_descriptor_t*) malloc(sizeof (usb_hub_descriptor_t));
-        //uint8_t size = sdescriptor[0];
+
+        if (sdescriptor[1] != USB_DESCTYPE_HUB) {
+                printf("[usb_hub] wrong descriptor %x\n",sdescriptor[1]);
+                return NULL;
+        }
+
+        usb_hub_descriptor_t * result = usb_new(usb_hub_descriptor_t);
+        
+
         result->ports_count = sdescriptor[2];
         /// @fixme handling of endianness??
@@ -94 +105 @@
         size_t var_size = result->ports_count / 8 + ((result->ports_count % 8 > 0) ? 1 : 0);
         result->devices_removable = (uint8_t*) malloc(var_size);
-
+        //printf("[usb_hub] getting removable devices data \n");
         size_t i;
         for (i = 0; i < var_size; ++i) {
@@ -102 +113 @@
 }
 
+//control transactions
+
+int usb_drv_sync_control_read(
+                int phone, usb_target_t target,
+                usb_device_request_setup_packet_t * request,
+                void * rcvd_buffer, size_t rcvd_size, size_t * actual_size
+                ) {
+        usb_handle_t handle;
+        int opResult;
+        //setup
+        opResult = usb_drv_async_control_read_setup(phone, target,
+                        request, sizeof (usb_device_request_setup_packet_t),
+                        &handle);
+        if (opResult != EOK) {
+                return opResult;
+        }
+        opResult = usb_drv_async_wait_for(handle);
+        if (opResult != EOK) {
+                return opResult;
+        }
+        //read
+        opResult = usb_drv_async_control_read_data(phone, target,
+                        rcvd_buffer, rcvd_size, actual_size,
+                        &handle);
+        if (opResult != EOK) {
+                return opResult;
+        }
+        opResult = usb_drv_async_wait_for(handle);
+        if (opResult != EOK) {
+                return opResult;
+        }
+        //finalize
+        opResult = usb_drv_async_control_read_status(phone, target,
+                        &handle);
+        if (opResult != EOK) {
+                return opResult;
+        }
+        opResult = usb_drv_async_wait_for(handle);
+        if (opResult != EOK) {
+                return opResult;
+        }
+        return EOK;
+}
+
+int usb_drv_sync_control_write(
+                int phone, usb_target_t target,
+                usb_device_request_setup_packet_t * request,
+                void * sent_buffer, size_t sent_size
+                ) {
+        usb_handle_t handle;
+        int opResult;
+        //setup
+        opResult = usb_drv_async_control_write_setup(phone, target,
+                        request, sizeof (usb_device_request_setup_packet_t),
+                        &handle);
+        if (opResult != EOK) {
+                return opResult;
+        }
+        opResult = usb_drv_async_wait_for(handle);
+        if (opResult != EOK) {
+                return opResult;
+        }
+        //write
+        opResult = usb_drv_async_control_write_data(phone, target,
+                        sent_buffer, sent_size,
+                        &handle);
+        if (opResult != EOK) {
+                return opResult;
+        }
+        opResult = usb_drv_async_wait_for(handle);
+        if (opResult != EOK) {
+                return opResult;
+        }
+        //finalize
+        opResult = usb_drv_async_control_write_status(phone, target,
+                        &handle);
+        if (opResult != EOK) {
+                return opResult;
+        }
+        opResult = usb_drv_async_wait_for(handle);
+        if (opResult != EOK) {
+                return opResult;
+        }
+        return EOK;
+}
+
+//list implementation
+
+usb_general_list_t * usb_lst_create(void) {
+        usb_general_list_t* result = usb_new(usb_general_list_t);
+        usb_lst_init(result);
+        return result;
+}
+
+void usb_lst_init(usb_general_list_t * lst) {
+        lst->prev = lst;
+        lst->next = lst;
+        lst->data = NULL;
+}
+
+void usb_lst_prepend(usb_general_list_t* item, void* data) {
+        usb_general_list_t* appended = usb_new(usb_general_list_t);
+        appended->data = data;
+        appended->next = item;
+        appended->prev = item->prev;
+        item->prev->next = appended;
+        item->prev = appended;
+}
+
+void usb_lst_append(usb_general_list_t* item, void* data) {
+        usb_general_list_t* appended = usb_new(usb_general_list_t);
+        appended->data = data;
+        appended->next = item->next;
+        appended->prev = item;
+        item->next->prev = appended;
+        item->next = appended;
+}
+
+void usb_lst_remove(usb_general_list_t* item) {
+        item->next->prev = item->prev;
+        item->prev->next = item->next;
+}
+
+static void usb_hub_test_port_status(void) {
+        printf("[usb_hub] -------------port status test---------\n");
+        usb_port_status_t status = 0;
+
+        //printf("original status %d (should be 0)\n",(uint32_t)status);
+        usb_port_set_bit(&status, 1, 1);
+        //printf("%d =?= 2\n",(uint32_t)status);
+        if (status != 2) {
+                printf("[usb_port_status] test failed: wrong set of bit 1\n");
+                return;
+        }
+        usb_port_set_bit(&status, 3, 1);
+        if (status != 10) {
+                printf("[usb_port_status] test failed: wrong set of bit 3\n");
+                return;
+        }
+
+        usb_port_set_bit(&status, 15, 1);
+        if (status != 10 + (1 << 15)) {
+                printf("[usb_port_status] test failed: wrong set of bit 15\n");
+                return;
+        }
+        usb_port_set_bit(&status, 1, 0);
+        if (status != 8 + (1 << 15)) {
+                printf("[usb_port_status] test failed: wrong unset of bit 1\n");
+                return;
+        }
+        int i;
+        for (i = 0; i < 32; ++i) {
+                if (i == 3 || i == 15) {
+                        if (!usb_port_get_bit(&status, i)) {
+                                printf("[usb_port_status] test failed: wrong bit at %d\n", i);
+                        }
+                } else {
+                        if (usb_port_get_bit(&status, i)) {
+                                printf("[usb_port_status] test failed: wrong bit at %d\n", i);
+                        }
+                }
+        }
+
+        printf("test ok\n");
+
+
+        //printf("%d =?= 10\n",(uint32_t)status);
+
+        //printf("this should be 0: %d \n",usb_port_get_bit(&status,0));
+        //printf("this should be 1: %d \n",usb_port_get_bit(&status,1));
+        //printf("this should be 0: %d \n",usb_port_get_bit(&status,2));
+        //printf("this should be 1: %d \n",usb_port_get_bit(&status,3));
+        //printf("this should be 0: %d \n",usb_port_get_bit(&status,4));
+
+
+
+
+}
 
 //*********************************************
 //
-//  hub driver code
+//  hub driver code, initialization
 //
 //*********************************************
 
-usb_hcd_hub_info_t * usb_create_hub_info(device_t * device) {
-        usb_hcd_hub_info_t* result = (usb_hcd_hub_info_t*) malloc(sizeof (usb_hcd_hub_info_t));
+usb_hub_info_t * usb_create_hub_info(device_t * device, int hc) {
+        usb_hub_info_t* result = usb_new(usb_hub_info_t);
+        //result->device = device;
+        result->port_count = -1;
+
+
+        //printf("[usb_hub] phone to hc = %d\n", hc);
+        if (hc < 0) {
+                return result;
+        }
+        //get some hub info
+        usb_address_t addr = usb_drv_get_my_address(hc, device);
+        printf("[usb_hub] addres of newly created hub = %d\n", addr);
+        /*if(addr<0){
+                //return result;
+                
+        }*/
+
+        result->device = usb_new(usb_hcd_attached_device_info_t);
+        result->device->address = addr;
+
+        // get hub descriptor
+        usb_target_t target;
+        target.address = addr;
+        target.endpoint = 0;
+        usb_device_request_setup_packet_t request;
+        //printf("[usb_hub] creating descriptor request\n");
+        usb_hub_set_descriptor_request(&request);
+
+        //printf("[usb_hub] creating serialized descriptor\n");
+        void * serialized_descriptor = malloc(USB_HUB_MAX_DESCRIPTOR_SIZE);
+        usb_hub_descriptor_t * descriptor;
+        size_t received_size;
+        int opResult;
+        //printf("[usb_hub] starting control transaction\n");
+        opResult = usb_drv_sync_control_read(
+                        hc, target, &request, serialized_descriptor,
+                        USB_HUB_MAX_DESCRIPTOR_SIZE, &received_size);
+        if (opResult != EOK) {
+                printf("[usb_hub] failed when receiving hub descriptor, badcode = %d\n",opResult);
+                ///\TODO memory leak will occur here!
+                return result;
+        }
+        //printf("[usb_hub] deserializing descriptor\n");
+        descriptor = usb_deserialize_hub_desriptor(serialized_descriptor);
+        if(descriptor==NULL){
+                printf("[usb_hub] could not deserialize descriptor \n");
+                result->port_count = 1;///\TODO this code is only for debug!!!
+                return result;
+        }
+        //printf("[usb_hub] setting port count to %d\n",descriptor->ports_count);
+        result->port_count = descriptor->ports_count;
+        //printf("[usb_hub] freeing data\n");
+        free(serialized_descriptor);
+        free(descriptor->devices_removable);
+        free(descriptor);
+
+        //finish
+
+        printf("[usb_hub] hub info created\n");
 
         return result;
@@ -122 +369 @@
 int usb_add_hub_device(device_t *dev) {
         printf(NAME ": add_hub_device(handle=%d)\n", (int) dev->handle);
-
-        check_hub_changes();
+        printf("[usb_hub] hub device\n");
 
         /*
@@ -132 +378 @@
 
         //create the hub structure
-        usb_hcd_hub_info_t * hub_info = usb_create_hub_info(dev);
-        (void)hub_info;
+        //get hc connection
+        /// \TODO correct params
+        int hc = usb_drv_hc_connect(dev, 0);
+
+        usb_hub_info_t * hub_info = usb_create_hub_info(dev, hc);
+        int port;
+        int opResult;
+        usb_device_request_setup_packet_t request;
+        usb_target_t target;
+        target.address = hub_info->device->address;
+        target.endpoint = 0;
+        for (port = 0; port < hub_info->port_count; ++port) {
+                usb_hub_set_power_port_request(&request, port);
+                opResult = usb_drv_sync_control_write(hc, target, &request, NULL, 0);
+                if (opResult != EOK) {
+                        printf("[usb_hub]something went wrong when setting hub`s %dth port\n", port);
+                }
+        }
+        //ports powered, hub seems to be enabled
+
+        ipc_hangup(hc);
+
+        //add the hub to list
+        usb_lst_append(&usb_hub_list, hub_info);
+        printf("[usb_hub] hub info added to list\n");
+        //(void)hub_info;
+        check_hub_changes();
+
+        /// \TODO start the check loop, if not already started...
+
+        //this is just a test for port status bitmap type
+        usb_hub_test_port_status();
+
+        printf("[usb_hub] hub dev added\n");
 
         return EOK;
@@ -139 +417 @@
 }
 
+//*********************************************
+//
+//  hub driver code, main loop
+//
+//*********************************************
+
+/**
+ * reset the port with new device and reserve the default address
+ * @param hc
+ * @param port
+ * @param target
+ */
+
+static void usb_hub_init_add_device(int hc, uint16_t port, usb_target_t target) {
+        usb_device_request_setup_packet_t request;
+        int opResult;
+        printf("[usb_hub] some connection changed\n");
+
+        opResult = usb_drv_reserve_default_address(hc);
+        if (opResult != EOK) {
+                printf("[usb_hub] cannot assign default address, it is probably used\n");
+                return;
+        }
+        //reset port
+        usb_hub_set_reset_port_request(&request, port);
+        opResult = usb_drv_sync_control_write(
+                        hc, target,
+                        &request,
+                        NULL, 0
+                        );
+        if (opResult != EOK) {
+                //continue;
+                printf("[usb_hub] something went wrong when reseting a port\n");
+        }
+}
+
+/**
+ * finalize adding new device after port reset
+ * @param hc
+ * @param port
+ * @param target
+ */
+static void usb_hub_finalize_add_device(
+                int hc, uint16_t port, usb_target_t target) {
+
+        usb_device_request_setup_packet_t request;
+        int opResult;
+        printf("[usb_hub] finalizing add device\n");
+        usb_address_t new_device_address =
+                        usb_drv_request_address(hc);
+        usb_hub_set_set_address_request
+                        (&request, new_device_address);
+        opResult = usb_drv_sync_control_write(
+                        hc, target,
+                        &request,
+                        NULL, 0
+                        );
+        if (opResult != EOK) {
+                printf("[usb_hub] could not set address for new device\n");
+                //will retry later...
+                return;
+        }
+        usb_drv_release_default_address(hc);
+
+
+        /// \TODO driver work
+        //add_child_device.....
+}
+
+/**
+ * unregister device address in hc, close the port
+ * @param hc
+ * @param port
+ * @param target
+ */
+static void usb_hub_removed_device(int hc, uint16_t port, usb_target_t target) {
+        usb_device_request_setup_packet_t request;
+        int opResult;
+        //disable port
+        usb_hub_set_disable_port_request(&request, port);
+        opResult = usb_drv_sync_control_write(
+                        hc, target,
+                        &request,
+                        NULL, 0
+                        );
+        if (opResult != EOK) {
+                //continue;
+                printf("[usb_hub] something went wrong when disabling a port\n");
+        }
+        //remove device
+        //close address
+        //
+
+        ///\TODO this code is not complete
+}
+
+/**
+ * process interrupts on given hub port
+ * @param hc
+ * @param port
+ * @param target
+ */
+static void usb_hub_process_interrupt(int hc, uint16_t port, usb_target_t target) {
+        printf("[usb_hub] interrupt at port %d\n", port);
+        //determine type of change
+        usb_port_status_t status;
+        size_t rcvd_size;
+        usb_device_request_setup_packet_t request;
+        int opResult;
+        usb_hub_set_port_status_request(&request, port);
+
+        opResult = usb_drv_sync_control_read(
+                        hc, target,
+                        &request,
+                        &status, 4, &rcvd_size
+                        );
+        if (opResult != EOK) {
+                printf("[usb_hub] ERROR: could not get port status\n");
+                return;
+        }
+        if (rcvd_size != sizeof (usb_port_status_t)) {
+                printf("[usb_hub] ERROR: received status has incorrect size\n");
+                return;
+        }
+        //something connected/disconnected
+        if (usb_port_connect_change(&status)) {
+                if (usb_port_dev_connected(&status)) {
+                        printf("[usb_hub] some connection changed\n");
+                        usb_hub_init_add_device(hc, port, target);
+                } else {
+                        usb_hub_removed_device(hc, port, target);
+                }
+        }
+        //port reset
+        if (usb_port_reset_completed(&status)) {
+                printf("[usb_hub] finalizing add device\n");
+                if (usb_port_enabled(&status)) {
+                        usb_hub_finalize_add_device(hc, port, target);
+                } else {
+                        printf("[usb_hub] ERROR: port reset, but port still not enabled\n");
+                }
+        }
+
+        usb_port_set_connect_change(&status, false);
+        usb_port_set_reset(&status, false);
+        usb_port_set_reset_completed(&status, false);
+        usb_port_set_dev_connected(&status, false);
+        if (status) {
+                printf("[usb_hub]there was some unsupported change on port\n");
+        }
+        /// \TODO handle other changes
+        /// \TODO debug log for various situations
+
+
+
+        /*
+        //configure device
+        usb_drv_reserve_default_address(hc);
+
+        usb_address_t new_device_address = usb_drv_request_address(hc);
+
+
+        usb_drv_release_default_address(hc);
+         * */
+}
 
 /** Check changes on all known hubs.
@@ -146 +589 @@
          * Iterate through all hubs.
          */
-        for (; false; ) {
+        usb_general_list_t * lst_item;
+        for (lst_item = usb_hub_list.next;
+                        lst_item != &usb_hub_list;
+                        lst_item = lst_item->next) {
+                printf("[usb_hub] checking hub changes\n");
                 /*
                  * Check status change pipe of this hub.
                  */
+
                 usb_target_t target = {
                         .address = 5,
                         .endpoint = 1
                 };
+                /// \TODO uncomment once it works correctly
+                //target.address = usb_create_hub_info(lst_item)->device->address;
 
                 size_t port_count = 7;
@@ -160 +610 @@
                  * Connect to respective HC.
                  */
+                /// \FIXME this is incorrect code: here
+                /// must be used particular device instead of NULL
+                //which one?
                 int hc = usb_drv_hc_connect(NULL, 0);
                 if (hc < 0) {
@@ -174 +627 @@
                 /*
                  * Send the request.
-                 * FIXME: check returned value for possible errors
-                 */
-                usb_drv_async_interrupt_in(hc, target,
+                 */
+                int opResult = usb_drv_async_interrupt_in(hc, target,
                                 change_bitmap, byte_length, &actual_size,
                                 &handle);
 
                 usb_drv_async_wait_for(handle);
+
+                if (opResult != EOK) {
+                        printf("[usb_hub] something went wrong while getting status of hub\n");
+                        continue;
+                }
+                unsigned int port;
+                for (port = 0; port < port_count; ++port) {
+                        bool interrupt = (((uint8_t*) change_bitmap)[port / 8] >> (port % 8)) % 2;
+                        if (interrupt) {
+                                usb_hub_process_interrupt(hc, port, target);
+                        }
+                }
+
 
                 /*