Changeset c6394aa in mainline


Ignore:
Timestamp:
2011-04-09T16:56:51Z (13 years ago)
Author:
Vojtech Horky <vojtechhorky@…>
Branches:
lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
Children:
77223f8
Parents:
b6c9e1e (diff), 5410c04 (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 development/ changes

Location:
uspace
Files:
6 added
25 edited

Legend:

Unmodified
Added
Removed

  • uspace/app/usbinfo/dev.c

    rb6c9e1e rc6394aa  
    5050
    5151        int rc;
     52        bool transfer_started = false;
    5253
    5354        rc = usb_device_connection_initialize(&dev->wire, hc_handle, dev_addr);
    … …  
    7677        }
    7778
    78         rc = usb_pipe_start_session(&dev->ctrl_pipe);
     79        rc = usb_pipe_start_long_transfer(&dev->ctrl_pipe);
    7980        if (rc != EOK) {
    8081                fprintf(stderr,
    81                     NAME ": failed to start session on control pipe: %s.\n",
     82                    NAME ": failed to start transfer on control pipe: %s.\n",
    8283                    str_error(rc));
    8384                goto leave;
    8485        }
     86        transfer_started = true;
    8587
    8688        rc = usb_request_get_device_descriptor(&dev->ctrl_pipe,
    … …  
    107109
    108110leave:
    109         if (usb_pipe_is_session_started(&dev->ctrl_pipe)) {
    110                 usb_pipe_end_session(&dev->ctrl_pipe);
     111        if (transfer_started) {
     112                usb_pipe_end_long_transfer(&dev->ctrl_pipe);
    111113        }
    112114
    … …  
    118120void destroy_device(usbinfo_device_t *dev)
    119121{
    120         usb_pipe_end_session(&dev->ctrl_pipe);
     122        usb_pipe_end_long_transfer(&dev->ctrl_pipe);
    121123        free(dev);
    122124}

  • uspace/drv/ohci/Makefile

    rb6c9e1e rc6394aa  
    3333
    3434SOURCES = \
     35        batch.c \
     36        hc.c \
    3537        iface.c \
    36         batch.c \
    3738        main.c \
    38         hc.c \
    3939        ohci.c \
     40        pci.c \
    4041        root_hub.c \
    41         pci.c
     42        transfer_list.c \
     43        hw_struct/endpoint_descriptor.c \
     44        hw_struct/transfer_descriptor.c
     45
    4246
    4347include $(USPACE_PREFIX)/Makefile.common

  • uspace/drv/ohci/batch.c

    rb6c9e1e rc6394aa  
    4040#include "batch.h"
    4141#include "utils/malloc32.h"
    42 
     42#include "hw_struct/endpoint_descriptor.h"
     43#include "hw_struct/transfer_descriptor.h"
     44
     45typedef struct ohci_batch {
     46        ed_t *ed;
     47        td_t *tds;
     48        size_t td_count;
     49} ohci_batch_t;
     50
     51static void batch_control(usb_transfer_batch_t *instance,
     52    usb_direction_t data_dir, usb_direction_t status_dir);
    4353static void batch_call_in_and_dispose(usb_transfer_batch_t *instance);
    4454static void batch_call_out_and_dispose(usb_transfer_batch_t *instance);
    4555
    4656#define DEFAULT_ERROR_COUNT 3
    47 usb_transfer_batch_t * batch_get(
    48     ddf_fun_t *fun,
    49                 usb_target_t target,
    50     usb_transfer_type_t transfer_type,
    51                 size_t max_packet_size,
    52     usb_speed_t speed,
    53                 char *buffer,
    54                 size_t buffer_size,
    55                 char *setup_buffer,
    56                 size_t setup_size,
     57usb_transfer_batch_t * batch_get(ddf_fun_t *fun, endpoint_t *ep,
     58    char *buffer, size_t buffer_size, char* setup_buffer, size_t setup_size,
    5759    usbhc_iface_transfer_in_callback_t func_in,
    58     usbhc_iface_transfer_out_callback_t func_out,
    59                 void *arg,
    60                 usb_device_keeper_t *manager
    61                 )
     60    usbhc_iface_transfer_out_callback_t func_out, void *arg)
    6261{
    6362#define CHECK_NULL_DISPOSE_RETURN(ptr, message...) \
    … …  
    7372        CHECK_NULL_DISPOSE_RETURN(instance,
    7473            "Failed to allocate batch instance.\n");
    75         usb_transfer_batch_init(instance, target, transfer_type, speed,
    76             max_packet_size, buffer, NULL, buffer_size, NULL, setup_size,
    77             func_in, func_out, arg, fun, NULL, NULL);
     74        usb_target_t target =
     75            { .address = ep->address, .endpoint = ep->endpoint };
     76        usb_transfer_batch_init(instance, target, ep->transfer_type, ep->speed,
     77            ep->max_packet_size, buffer, NULL, buffer_size, NULL, setup_size,
     78            func_in, func_out, arg, fun, ep, NULL);
     79
     80        ohci_batch_t *data = malloc(sizeof(ohci_batch_t));
     81        CHECK_NULL_DISPOSE_RETURN(data, "Failed to allocate batch data.\n");
     82        bzero(data, sizeof(ohci_batch_t));
     83        instance->private_data = data;
     84
     85        /* we needs + 1 transfer descriptor as the last one won't be executed */
     86        data->td_count = 1 +
     87            ((buffer_size + OHCI_TD_MAX_TRANSFER - 1) / OHCI_TD_MAX_TRANSFER);
     88        if (ep->transfer_type == USB_TRANSFER_CONTROL) {
     89                data->td_count += 2;
     90        }
     91
     92        data->tds = malloc32(sizeof(td_t) * data->td_count);
     93        CHECK_NULL_DISPOSE_RETURN(data->tds,
     94            "Failed to allocate transfer descriptors.\n");
     95        bzero(data->tds, sizeof(td_t) * data->td_count);
     96
     97        data->ed = malloc32(sizeof(ed_t));
     98        CHECK_NULL_DISPOSE_RETURN(data->ed,
     99            "Failed to allocate endpoint descriptor.\n");
    78100
    79101        if (buffer_size > 0) {
    … …  
    90112        }
    91113
    92 
    93114        return instance;
    94115}
    … …  
    97118{
    98119        assert(instance);
     120        ohci_batch_t *data = instance->private_data;
     121        assert(data);
     122        free32(data->ed);
     123        free32(data->tds);
     124        free32(instance->setup_buffer);
    99125        free32(instance->transport_buffer);
    100         free32(instance->setup_buffer);
     126        free(data);
    101127        free(instance);
     128}
     129/*----------------------------------------------------------------------------*/
     130bool batch_is_complete(usb_transfer_batch_t *instance)
     131{
     132        assert(instance);
     133        ohci_batch_t *data = instance->private_data;
     134        assert(data);
     135        size_t tds = data->td_count - 1;
     136        usb_log_debug2("Batch(%p) checking %d td(s) for completion.\n",
     137            instance, tds);
     138        size_t i = 0;
     139        for (; i < tds; ++i) {
     140                if (!td_is_finished(&data->tds[i]))
     141                        return false;
     142                instance->error = td_error(&data->tds[i]);
     143                /* FIXME: calculate real transfered size */
     144                instance->transfered_size = instance->buffer_size;
     145                if (instance->error != EOK) {
     146                        usb_log_debug("Batch(%p) found error TD(%d):%x.\n",
     147                            instance, i, data->tds[i].status);
     148                        return true;
     149//                      endpoint_toggle_set(instance->ep,
     150                }
     151        }
     152        return true;
    102153}
    103154/*----------------------------------------------------------------------------*/
    … …  
    109160            instance->buffer_size);
    110161        instance->next_step = batch_call_out_and_dispose;
    111         /* TODO: implement */
     162        batch_control(instance, USB_DIRECTION_OUT, USB_DIRECTION_IN);
    112163        usb_log_debug("Batch(%p) CONTROL WRITE initialized.\n", instance);
    113164}
    … …  
    117168        assert(instance);
    118169        instance->next_step = batch_call_in_and_dispose;
    119         /* TODO: implement */
     170        batch_control(instance, USB_DIRECTION_IN, USB_DIRECTION_OUT);
    120171        usb_log_debug("Batch(%p) CONTROL READ initialized.\n", instance);
    121172}
    … …  
    124175{
    125176        assert(instance);
    126         instance->direction = USB_DIRECTION_IN;
     177        assert(instance->direction == USB_DIRECTION_IN);
    127178        instance->next_step = batch_call_in_and_dispose;
    128179        /* TODO: implement */
    … …  
    133184{
    134185        assert(instance);
    135         instance->direction = USB_DIRECTION_OUT;
     186        assert(instance->direction == USB_DIRECTION_OUT);
    136187        /* We are data out, we are supposed to provide data */
    137188        memcpy(instance->transport_buffer, instance->buffer,
    … …  
    160211}
    161212/*----------------------------------------------------------------------------*/
     213ed_t * batch_ed(usb_transfer_batch_t *instance)
     214{
     215        assert(instance);
     216        ohci_batch_t *data = instance->private_data;
     217        assert(data);
     218        return data->ed;
     219}
     220/*----------------------------------------------------------------------------*/
     221void batch_control(usb_transfer_batch_t *instance,
     222    usb_direction_t data_dir, usb_direction_t status_dir)
     223{
     224        assert(instance);
     225        ohci_batch_t *data = instance->private_data;
     226        assert(data);
     227        ed_init(data->ed, instance->ep);
     228        ed_add_tds(data->ed, &data->tds[0], &data->tds[data->td_count - 1]);
     229        usb_log_debug("Created ED: %x:%x:%x:%x.\n", data->ed->status,
     230            data->ed->td_tail, data->ed->td_head, data->ed->next);
     231        int toggle = 0;
     232        /* setup stage */
     233        td_init(&data->tds[0], USB_DIRECTION_BOTH, instance->setup_buffer,
     234                instance->setup_size, toggle);
     235        td_set_next(&data->tds[0], &data->tds[1]);
     236        usb_log_debug("Created SETUP TD: %x:%x:%x:%x.\n", data->tds[0].status,
     237            data->tds[0].cbp, data->tds[0].next, data->tds[0].be);
     238
     239        /* data stage */
     240        size_t td_current = 1;
     241        size_t remain_size = instance->buffer_size;
     242        char *transfer_buffer = instance->transport_buffer;
     243        while (remain_size > 0) {
     244                size_t transfer_size = remain_size > OHCI_TD_MAX_TRANSFER ?
     245                    OHCI_TD_MAX_TRANSFER : remain_size;
     246                toggle = 1 - toggle;
     247
     248                td_init(&data->tds[td_current], data_dir, transfer_buffer,
     249                    transfer_size, toggle);
     250                td_set_next(&data->tds[td_current], &data->tds[td_current + 1]);
     251                usb_log_debug("Created DATA TD: %x:%x:%x:%x.\n",
     252                    data->tds[td_current].status, data->tds[td_current].cbp,
     253                    data->tds[td_current].next, data->tds[td_current].be);
     254
     255                transfer_buffer += transfer_size;
     256                remain_size -= transfer_size;
     257                assert(td_current < data->td_count - 2);
     258                ++td_current;
     259        }
     260
     261        /* status stage */
     262        assert(td_current == data->td_count - 2);
     263        td_init(&data->tds[td_current], status_dir, NULL, 0, 1);
     264        usb_log_debug("Created STATUS TD: %x:%x:%x:%x.\n",
     265            data->tds[td_current].status, data->tds[td_current].cbp,
     266            data->tds[td_current].next, data->tds[td_current].be);
     267}
     268/*----------------------------------------------------------------------------*/
    162269/** Helper function calls callback and correctly disposes of batch structure.
    163270 *

  • uspace/drv/ohci/batch.h

    rb6c9e1e rc6394aa  
    2626 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    2727 */
    28 /** @addtogroup drvusbohci
     28/** @addtogroup drvusbuhcihc
    2929 * @{
    3030 */
    3131/** @file
    32  * @brief OHCI driver USB transaction structure
     32 * @brief UHCI driver USB transaction structure
    3333 */
    34 #ifndef DRV_OHCI_BATCH_H
    35 #define DRV_OHCI_BATCH_H
    36 
     34#ifndef DRV_UHCI_BATCH_H
     35#define DRV_UHCI_BATCH_H
    3736
    3837#include <usbhc_iface.h>
    3938#include <usb/usb.h>
    4039#include <usb/host/device_keeper.h>
     40#include <usb/host/endpoint.h>
    4141#include <usb/host/batch.h>
    4242
     43#include "hw_struct/endpoint_descriptor.h"
     44
    4345usb_transfer_batch_t * batch_get(
    44     ddf_fun_t *fun,
    45                 usb_target_t target,
    46     usb_transfer_type_t transfer_type,
    47                 size_t max_packet_size,
    48     usb_speed_t speed,
    49                 char *buffer,
    50                 size_t size,
    51                 char *setup_buffer,
    52                 size_t setup_size,
     46    ddf_fun_t *fun, endpoint_t *ep, char *buffer, size_t size,
     47    char *setup_buffer, size_t setup_size,
    5348    usbhc_iface_transfer_in_callback_t func_in,
    5449    usbhc_iface_transfer_out_callback_t func_out,
    55                 void *arg,
    56                 usb_device_keeper_t *manager
    57                 );
     50    void *arg);
    5851
    5952void batch_dispose(usb_transfer_batch_t *instance);
     53
     54bool batch_is_complete(usb_transfer_batch_t *instance);
    6055
    6156void batch_control_write(usb_transfer_batch_t *instance);
    … …  
    7065
    7166void batch_bulk_out(usb_transfer_batch_t *instance);
     67
     68ed_t * batch_ed(usb_transfer_batch_t *instance);
    7269#endif
    7370/**

  • uspace/drv/ohci/hc.c

    rb6c9e1e rc6394aa  
    4747static void hc_gain_control(hc_t *instance);
    4848static void hc_init_hw(hc_t *instance);
     49static int hc_init_transfer_lists(hc_t *instance);
     50static int hc_init_memory(hc_t *instance);
    4951/*----------------------------------------------------------------------------*/
    5052int hc_register_hub(hc_t *instance, ddf_fun_t *hub_fun)
    … …  
    5961            &instance->manager, hub_address, hub_fun->handle);
    6062
     63        endpoint_t *ep = malloc(sizeof(endpoint_t));
     64        assert(ep);
     65        int ret = endpoint_init(ep, hub_address, 0, USB_DIRECTION_BOTH,
     66            USB_TRANSFER_CONTROL, USB_SPEED_FULL, 64);
     67        assert(ret == EOK);
     68        ret = usb_endpoint_manager_register_ep(&instance->ep_manager, ep, 0);
     69        assert(ret == EOK);
     70
    6171        char *match_str = NULL;
    62         int ret = asprintf(&match_str, "usb&class=hub");
    63         ret = (match_str == NULL) ? ret : EOK;
     72        ret = asprintf(&match_str, "usb&class=hub");
     73//      ret = (match_str == NULL) ? ret : EOK;
    6474        if (ret < 0) {
    65                 usb_log_error("Failed to create root hub match-id string.\n");
     75                usb_log_error(
     76                    "Failed(%d) to create root hub match-id string.\n", ret);
    6677                return ret;
    6778        }
    … …  
    107118        rh_init(&instance->rh, dev, instance->registers);
    108119
     120        hc_init_memory(instance);
    109121        hc_init_hw(instance);
    110122
    … …  
    117129        assert(instance);
    118130        assert(batch);
     131
     132        /* check for root hub communication */
    119133        if (batch->target.address == instance->rh.address) {
    120134                return rh_request(&instance->rh, batch);
    121135        }
    122         /* TODO: implement */
    123         return ENOTSUP;
     136
     137        transfer_list_add_batch(
     138            instance->transfers[batch->transfer_type], batch);
     139
     140        switch (batch->transfer_type) {
     141        case USB_TRANSFER_CONTROL:
     142                instance->registers->command_status |= CS_CLF;
     143                break;
     144        case USB_TRANSFER_BULK:
     145                instance->registers->command_status |= CS_BLF;
     146                break;
     147        default:
     148                break;
     149        }
     150        return EOK;
    124151}
    125152/*----------------------------------------------------------------------------*/
    … …  
    134161        usb_log_info("OHCI interrupt: %x.\n", status);
    135162
    136         /* TODO: Check for further interrupt causes */
    137         /* TODO: implement */
     163        LIST_INITIALIZE(done);
     164        transfer_list_remove_finished(&instance->transfers_interrupt, &done);
     165        transfer_list_remove_finished(&instance->transfers_isochronous, &done);
     166        transfer_list_remove_finished(&instance->transfers_control, &done);
     167        transfer_list_remove_finished(&instance->transfers_bulk, &done);
     168
     169        while (!list_empty(&done)) {
     170                link_t *item = done.next;
     171                list_remove(item);
     172                usb_transfer_batch_t *batch =
     173                    list_get_instance(item, usb_transfer_batch_t, link);
     174                usb_transfer_batch_finish(batch);
     175        }
    138176}
    139177/*----------------------------------------------------------------------------*/
    … …  
    197235        assert(instance);
    198236        const uint32_t fm_interval = instance->registers->fm_interval;
     237
     238        /* reset hc */
    199239        instance->registers->command_status = CS_HCR;
    200240        async_usleep(10);
     241
     242        /* restore fm_interval */
    201243        instance->registers->fm_interval = fm_interval;
    202244        assert((instance->registers->command_status & CS_HCR) == 0);
     245
    203246        /* hc is now in suspend state */
    204         /* TODO: init HCCA block */
    205         /* TODO: init queues */
    206         /* TODO: enable queues */
     247
     248        /* enable queues */
     249        instance->registers->control |= (C_PLE | C_IE | C_CLE | C_BLE);
    207250        /* TODO: enable interrupts */
    208         /* TODO: set periodic start to 90% */
     251        /* set periodic start to 90% */
     252        instance->registers->periodic_start = (fm_interval / 10) * 9;
    209253
    210254        instance->registers->control &= (C_HCFS_OPERATIONAL << C_HCFS_SHIFT);
    211255        usb_log_info("OHCI HC up and running.\n");
     256}
     257/*----------------------------------------------------------------------------*/
     258int hc_init_transfer_lists(hc_t *instance)
     259{
     260        assert(instance);
     261
     262#define SETUP_TRANSFER_LIST(type, name) \
     263do { \
     264        int ret = transfer_list_init(&instance->type, name); \
     265        if (ret != EOK) { \
     266                usb_log_error("Failed(%d) to setup %s transfer list.\n", \
     267                    ret, name); \
     268                transfer_list_fini(&instance->transfers_isochronous); \
     269                transfer_list_fini(&instance->transfers_interrupt); \
     270                transfer_list_fini(&instance->transfers_control); \
     271                transfer_list_fini(&instance->transfers_bulk); \
     272        } \
     273} while (0)
     274
     275        SETUP_TRANSFER_LIST(transfers_isochronous, "ISOCHRONOUS");
     276        SETUP_TRANSFER_LIST(transfers_interrupt, "INTERRUPT");
     277        SETUP_TRANSFER_LIST(transfers_control, "CONTROL");
     278        SETUP_TRANSFER_LIST(transfers_bulk, "BULK");
     279
     280        transfer_list_set_next(&instance->transfers_interrupt,
     281            &instance->transfers_isochronous);
     282
     283        /* Assign pointers to be used during scheduling */
     284        instance->transfers[USB_TRANSFER_INTERRUPT] =
     285          &instance->transfers_interrupt;
     286        instance->transfers[USB_TRANSFER_ISOCHRONOUS] =
     287          &instance->transfers_interrupt;
     288        instance->transfers[USB_TRANSFER_CONTROL] =
     289          &instance->transfers_control;
     290        instance->transfers[USB_TRANSFER_BULK] =
     291          &instance->transfers_bulk;
     292
     293        return EOK;
     294#undef CHECK_RET_CLEAR_RETURN
     295}
     296/*----------------------------------------------------------------------------*/
     297int hc_init_memory(hc_t *instance)
     298{
     299        assert(instance);
     300        /* init queues */
     301        hc_init_transfer_lists(instance);
     302
     303        /* init HCCA */
     304        instance->hcca = malloc32(sizeof(hcca_t));
     305        if (instance->hcca == NULL)
     306                return ENOMEM;
     307        bzero(instance->hcca, sizeof(hcca_t));
     308        instance->registers->hcca = addr_to_phys(instance->hcca);
     309
     310        /* use queues */
     311        instance->registers->bulk_head = instance->transfers_bulk.list_head_pa;
     312        instance->registers->control_head =
     313            instance->transfers_control.list_head_pa;
     314
     315        unsigned i = 0;
     316        for (; i < 32; ++i) {
     317                instance->hcca->int_ep[i] =
     318                    instance->transfers_interrupt.list_head_pa;
     319        }
     320
     321        return EOK;
    212322}
    213323/**

  • uspace/drv/ohci/hc.h

    rb6c9e1e rc6394aa  
    4848#include "ohci_regs.h"
    4949#include "root_hub.h"
     50#include "transfer_list.h"
    5051#include "hw_struct/hcca.h"
    5152
    … …  
    5455        usb_address_t rh_address;
    5556        rh_t rh;
     57
     58        hcca_t *hcca;
     59
     60        transfer_list_t transfers_isochronous;
     61        transfer_list_t transfers_interrupt;
     62        transfer_list_t transfers_control;
     63        transfer_list_t transfers_bulk;
     64
     65        transfer_list_t *transfers[4];
     66
    5667        ddf_fun_t *ddf_instance;
    5768        usb_device_keeper_t manager;

  • uspace/drv/ohci/hw_struct/completion_codes.h

    rb6c9e1e rc6394aa  
    3535#define DRV_OHCI_HW_STRUCT_COMPLETION_CODES_H
    3636
     37#include <errno.h>
     38
    3739#define CC_NOERROR (0x0)
    3840#define CC_CRC (0x1)
    … …  
    5052#define CC_NOACCESS2 (0xf)
    5153
     54inline static int cc_to_rc(int cc)
     55{
     56        switch (cc) {
     57        case CC_NOERROR:
     58                return EOK;
     59
     60        case CC_CRC:
     61                return EBADCHECKSUM;
     62
     63        case CC_PIDUNEXPECTED:
     64        case CC_PIDFAIL:
     65        case CC_BITSTUFF:
     66                return EIO;
     67
     68        case CC_TOGGLE:
     69        case CC_STALL:
     70                return ESTALL;
     71
     72        case CC_NORESPONSE:
     73                return ETIMEOUT;
     74
     75        case CC_DATAOVERRRUN:
     76        case CC_DATAUNDERRRUN:
     77        case CC_BUFFEROVERRRUN:
     78        case CC_BUFFERUNDERRUN:
     79                return EOVERFLOW;
     80
     81        case CC_NOACCESS1:
     82        case CC_NOACCESS2:
     83        default:
     84                return ENOTSUP;
     85        }
     86}
     87
    5288#endif
    5389/**

  • uspace/drv/ohci/hw_struct/endpoint_descriptor.h

    rb6c9e1e rc6394aa  
    3535#define DRV_OHCI_HW_STRUCT_ENDPOINT_DESCRIPTOR_H
    3636
     37#include <assert.h>
    3738#include <stdint.h>
     39
     40#include <usb/host/endpoint.h>
     41
     42#include "utils/malloc32.h"
     43#include "transfer_descriptor.h"
    3844
    3945#include "completion_codes.h"
    … …  
    4450#define ED_STATUS_FA_SHIFT (0)
    4551#define ED_STATUS_EN_MASK (0xf)    /* USB endpoint address */
    46 #define ED_STATUS_EN_SHIFT (6)
     52#define ED_STATUS_EN_SHIFT (7)
    4753#define ED_STATUS_D_MASK (0x3)     /* direction */
    48 #define ED_STATUS_D_SHIFT (10)
     54#define ED_STATUS_D_SHIFT (11)
    4955#define ED_STATUS_D_IN (0x1)
    5056#define ED_STATUS_D_OUT (0x2)
     57#define ED_STATUS_D_TRANSFER (0x3)
    5158
    52 #define ED_STATUS_S_FLAG (1 << 13) /* speed flag */
     59#define ED_STATUS_S_FLAG (1 << 13) /* speed flag: 1 = low */
    5360#define ED_STATUS_K_FLAG (1 << 14) /* skip flag (no not execute this ED) */
    5461#define ED_STATUS_F_FLAG (1 << 15) /* format: 1 = isochronous*/
    … …  
    7178#define ED_NEXT_PTR_SHIFT (0)
    7279} __attribute__((packed)) ed_t;
     80
     81void ed_init(ed_t *instance, endpoint_t *ep);
     82
     83static inline void ed_add_tds(ed_t *instance, td_t *head, td_t *tail)
     84{
     85        assert(instance);
     86        instance->td_head = addr_to_phys(head) & ED_TDHEAD_PTR_MASK;
     87        instance->td_tail = addr_to_phys(tail) & ED_TDTAIL_PTR_MASK;
     88}
     89
     90static inline void ed_append_ed(ed_t *instance, ed_t *next)
     91{
     92        assert(instance);
     93        assert(next);
     94        uint32_t pa = addr_to_phys(next);
     95        assert((pa & ED_NEXT_PTR_MASK) << ED_NEXT_PTR_SHIFT == pa);
     96        instance->next = pa;
     97}
     98
    7399#endif
    74100/**

  • uspace/drv/ohci/hw_struct/transfer_descriptor.h

    rb6c9e1e rc6394aa  
    3535#define DRV_OHCI_HW_STRUCT_TRANSFER_DESCRIPTOR_H
    3636
     37#include <bool.h>
    3738#include <stdint.h>
     39#include "utils/malloc32.h"
    3840
    3941#include "completion_codes.h"
     42
     43/* OHCI TDs can handle up to 8KB buffers */
     44#define OHCI_TD_MAX_TRANSFER (8 * 1024)
    4045
    4146typedef struct td {
    … …  
    5257#define TD_STATUS_T_MASK (0x3)  /* data toggle 1x = use ED toggle carry */
    5358#define TD_STATUS_T_SHIFT (24)
     59#define TD_STATUS_T_0 (0x2)
     60#define TD_STATUS_T_1 (0x3)
    5461#define TD_STATUS_EC_MASK (0x3) /* error count */
    5562#define TD_STATUS_EC_SHIFT (26)
    … …  
    6471        volatile uint32_t be; /* buffer end, address of the last byte */
    6572} __attribute__((packed)) td_t;
     73
     74void td_init(
     75    td_t *instance, usb_direction_t dir, void *buffer, size_t size, int toggle);
     76
     77inline static void td_set_next(td_t *instance, td_t *next)
     78{
     79        assert(instance);
     80        instance->next = addr_to_phys(next) & TD_NEXT_PTR_MASK;
     81}
     82
     83inline static bool td_is_finished(td_t *instance)
     84{
     85        assert(instance);
     86        int cc = (instance->status >> TD_STATUS_CC_SHIFT) & TD_STATUS_CC_MASK;
     87        /* something went wrong, error code is set */
     88        if (cc != CC_NOACCESS1 && cc != CC_NOACCESS2 && cc != CC_NOERROR) {
     89                return true;
     90        }
     91        /* everything done */
     92        if (cc == CC_NOERROR && instance->cbp == 0) {
     93                return true;
     94        }
     95        return false;
     96}
     97
     98static inline int td_error(td_t *instance)
     99{
     100        assert(instance);
     101        int cc = (instance->status >> TD_STATUS_CC_SHIFT) & TD_STATUS_CC_MASK;
     102        return cc_to_rc(cc);
     103}
    66104#endif
    67105/**

  • uspace/drv/ohci/iface.c

    rb6c9e1e rc6394aa  
    11/*
    2  * Copyright (c) 2011 Vojtech Horky
     2 * Copyright (c) 2011 Vojtech Horky, Jan Vesely
    33 * All rights reserved.
    44 *
    … …  
    3030 */
    3131/** @file
    32  * USB-HC interface implementation.
     32 * @brief OHCI driver hc interface implementation
    3333 */
    3434#include <ddf/driver.h>
    … …  
    3636
    3737#include <usb/debug.h>
     38#include <usb/host/endpoint.h>
    3839
    3940#include "iface.h"
    4041#include "hc.h"
    4142
    42 #define UNSUPPORTED(methodname) \
    43         usb_log_warning("Unsupported interface method `%s()' in %s:%d.\n", \
    44             methodname, __FILE__, __LINE__)
    45 
    46 /** Reserve default address.
    47  *
    48  * This function may block the caller.
    49  *
    50  * @param[in] fun Device function the action was invoked on.
    51  * @param[in] speed Speed of the device for which the default address is
    52  *      reserved.
     43static inline int setup_batch(
     44    ddf_fun_t *fun, usb_target_t target, usb_direction_t direction,
     45    void *data, size_t size, void * setup_data, size_t setup_size,
     46    usbhc_iface_transfer_in_callback_t in,
     47    usbhc_iface_transfer_out_callback_t out, void *arg, const char* name,
     48    hc_t **hc, usb_transfer_batch_t **batch)
     49{
     50        assert(hc);
     51        assert(batch);
     52        assert(fun);
     53        *hc = fun_to_hc(fun);
     54        assert(*hc);
     55
     56        size_t res_bw;
     57        endpoint_t *ep = usb_endpoint_manager_get_ep(&(*hc)->ep_manager,
     58            target.address, target.endpoint, direction, &res_bw);
     59        if (ep == NULL) {
     60                usb_log_error("Endpoint(%d:%d) not registered for %s.\n",
     61                    target.address, target.endpoint, name);
     62                return ENOENT;
     63        }
     64
     65        const size_t bw = bandwidth_count_usb11(
     66            ep->speed, ep->transfer_type, size, ep->max_packet_size);
     67        if (res_bw < bw) {
     68                usb_log_error("Endpoint(%d:%d) %s needs %zu bw "
     69                    "but only %zu is reserved.\n",
     70                    name, target.address, target.endpoint, bw, res_bw);
     71                return ENOSPC;
     72        }
     73        usb_log_debug("%s %d:%d %zu(%zu).\n",
     74            name, target.address, target.endpoint, size, ep->max_packet_size);
     75
     76        assert(ep->speed ==
     77            usb_device_keeper_get_speed(&(*hc)->manager, target.address));
     78//      assert(ep->max_packet_size == max_packet_size);
     79//      assert(ep->transfer_type == USB_TRANSFER_CONTROL);
     80
     81        *batch =
     82            batch_get(fun, ep, data, size, setup_data, setup_size,
     83                in, out, arg);
     84        if (!batch)
     85                return ENOMEM;
     86        return EOK;
     87}
     88
     89
     90/** Reserve default address interface function
     91 *
     92 * @param[in] fun DDF function that was called.
     93 * @param[in] speed Speed to associate with the new default address.
    5394 * @return Error code.
    5495 */
    … …  
    61102        usb_device_keeper_reserve_default_address(&hc->manager, speed);
    62103        return EOK;
    63 }
    64 /*----------------------------------------------------------------------------*/
    65 /** Release default address.
    66  *
    67  * @param[in] fun Device function the action was invoked on.
     104#if 0
     105        endpoint_t *ep = malloc(sizeof(endpoint_t));
     106        if (ep == NULL)
     107                return ENOMEM;
     108        const size_t max_packet_size = speed == USB_SPEED_LOW ? 8 : 64;
     109        endpoint_init(ep, USB_TRANSFER_CONTROL, speed, max_packet_size);
     110        int ret;
     111try_retgister:
     112        ret = usb_endpoint_manager_register_ep(&hc->ep_manager,
     113            USB_ADDRESS_DEFAULT, 0, USB_DIRECTION_BOTH, ep, endpoint_destroy, 0);
     114        if (ret == EEXISTS) {
     115                async_usleep(1000);
     116                goto try_retgister;
     117        }
     118        if (ret != EOK) {
     119                endpoint_destroy(ep);
     120        }
     121        return ret;
     122#endif
     123}
     124/*----------------------------------------------------------------------------*/
     125/** Release default address interface function
     126 *
     127 * @param[in] fun DDF function that was called.
    68128 * @return Error code.
    69129 */
    … …  
    74134        assert(hc);
    75135        usb_log_debug("Default address release.\n");
     136//      return usb_endpoint_manager_unregister_ep(&hc->ep_manager,
     137//          USB_ADDRESS_DEFAULT, 0, USB_DIRECTION_BOTH);
    76138        usb_device_keeper_release_default_address(&hc->manager);
    77139        return EOK;
    78140}
    79141/*----------------------------------------------------------------------------*/
    80 /** Found free USB address.
    81  *
    82  * @param[in] fun Device function the action was invoked on.
    83  * @param[in] speed Speed of the device that will get this address.
    84  * @param[out] address Non-null pointer where to store the free address.
     142/** Request address interface function
     143 *
     144 * @param[in] fun DDF function that was called.
     145 * @param[in] speed Speed to associate with the new default address.
     146 * @param[out] address Place to write a new address.
    85147 * @return Error code.
    86148 */
    … …  
    101163}
    102164/*----------------------------------------------------------------------------*/
    103 /** Bind USB address with device devman handle.
    104  *
    105  * @param[in] fun Device function the action was invoked on.
    106  * @param[in] address USB address of the device.
    107  * @param[in] handle Devman handle of the device.
     165/** Bind address interface function
     166 *
     167 * @param[in] fun DDF function that was called.
     168 * @param[in] address Address of the device
     169 * @param[in] handle Devman handle of the device driver.
    108170 * @return Error code.
    109171 */
    110172static int bind_address(
    111     ddf_fun_t *fun, usb_address_t address, devman_handle_t handle)
     173  ddf_fun_t *fun, usb_address_t address, devman_handle_t handle)
    112174{
    113175        assert(fun);
    … …  
    119181}
    120182/*----------------------------------------------------------------------------*/
    121 /** Release previously requested address.
    122  *
    123  * @param[in] fun Device function the action was invoked on.
     183/** Release address interface function
     184 *
     185 * @param[in] fun DDF function that was called.
    124186 * @param[in] address USB address to be released.
    125187 * @return Error code.
    … …  
    152214    size_t max_packet_size, unsigned int interval)
    153215{
    154         assert(fun);
    155216        hc_t *hc = fun_to_hc(fun);
    156217        assert(hc);
    … …  
    161222                speed = ep_speed;
    162223        }
    163         const size_t size = max_packet_size;
     224        const size_t size =
     225            (transfer_type == USB_TRANSFER_INTERRUPT
     226            || transfer_type == USB_TRANSFER_ISOCHRONOUS) ?
     227            max_packet_size : 0;
     228        int ret;
     229
     230        endpoint_t *ep = malloc(sizeof(endpoint_t));
     231        if (ep == NULL)
     232                return ENOMEM;
     233        ret = endpoint_init(ep, address, endpoint, direction,
     234            transfer_type, speed, max_packet_size);
     235        if (ret != EOK) {
     236                free(ep);
     237                return ret;
     238        }
     239
    164240        usb_log_debug("Register endpoint %d:%d %s %s(%d) %zu(%zu) %u.\n",
    165241            address, endpoint, usb_str_transfer_type(transfer_type),
    166242            usb_str_speed(speed), direction, size, max_packet_size, interval);
    167         // TODO use real endpoint here!
    168         return usb_endpoint_manager_register_ep(&hc->ep_manager,NULL, 0);
    169 }
    170 /*----------------------------------------------------------------------------*/
    171 /** Unregister endpoint (free some bandwidth reservation).
    172  *
    173  * @param[in] fun Device function the action was invoked on.
    174  * @param[in] address USB address of the device.
    175  * @param[in] endpoint Endpoint number.
    176  * @param[in] direction Endpoint data direction.
    177  * @return Error code.
    178  */
     243
     244        ret = usb_endpoint_manager_register_ep(&hc->ep_manager, ep, size);
     245        if (ret != EOK) {
     246                endpoint_destroy(ep);
     247        } else {
     248                usb_device_keeper_add_ep(&hc->manager, address, ep);
     249        }
     250        return ret;
     251}
     252/*----------------------------------------------------------------------------*/
    179253static int unregister_endpoint(
    180254    ddf_fun_t *fun, usb_address_t address,
    181255    usb_endpoint_t endpoint, usb_direction_t direction)
    182256{
    183         assert(fun);
    184257        hc_t *hc = fun_to_hc(fun);
    185258        assert(hc);
    … …  
    215288    size_t size, usbhc_iface_transfer_out_callback_t callback, void *arg)
    216289{
    217         assert(fun);
    218 
    219         // FIXME: get from endpoint manager
    220         size_t max_packet_size = 8;
    221 
    222         hc_t *hc = fun_to_hc(fun);
    223         assert(hc);
    224         usb_speed_t speed =
    225             usb_device_keeper_get_speed(&hc->manager, target.address);
    226 
    227         usb_log_debug("Interrupt OUT %d:%d %zu(%zu).\n",
    228             target.address, target.endpoint, size, max_packet_size);
    229 
    230         usb_transfer_batch_t *batch =
    231             batch_get(fun, target, USB_TRANSFER_INTERRUPT, max_packet_size,
    232                 speed, data, size, NULL, 0, NULL, callback, arg, &hc->manager);
    233         if (!batch)
    234                 return ENOMEM;
     290        usb_transfer_batch_t *batch = NULL;
     291        hc_t *hc = NULL;
     292        int ret = setup_batch(fun, target, USB_DIRECTION_OUT, data, size,
     293            NULL, 0, NULL, callback, arg, "Interrupt OUT", &hc, &batch);
     294        if (ret != EOK)
     295                return ret;
    235296        batch_interrupt_out(batch);
    236         const int ret = hc_schedule(hc, batch);
     297        ret = hc_schedule(hc, batch);
    237298        if (ret != EOK) {
    238299                batch_dispose(batch);
    … …  
    261322    size_t size, usbhc_iface_transfer_in_callback_t callback, void *arg)
    262323{
    263         assert(fun);
    264 
    265         // FIXME: get from endpoint manager
    266         size_t max_packet_size = 8;
    267 
    268         hc_t *hc = fun_to_hc(fun);
    269         assert(hc);
    270         usb_speed_t speed =
    271             usb_device_keeper_get_speed(&hc->manager, target.address);
    272         usb_log_debug("Interrupt IN %d:%d %zu(%zu).\n",
    273             target.address, target.endpoint, size, max_packet_size);
    274 
    275         usb_transfer_batch_t *batch =
    276             batch_get(fun, target, USB_TRANSFER_INTERRUPT, max_packet_size,
    277                 speed, data, size, NULL, 0, callback, NULL, arg, &hc->manager);
    278         if (!batch)
    279                 return ENOMEM;
     324        usb_transfer_batch_t *batch = NULL;
     325        hc_t *hc = NULL;
     326        int ret = setup_batch(fun, target, USB_DIRECTION_IN, data, size,
     327            NULL, 0, callback, NULL, arg, "Interrupt IN", &hc, &batch);
     328        if (ret != EOK)
     329                return ret;
    280330        batch_interrupt_in(batch);
    281         const int ret = hc_schedule(hc, batch);
     331        ret = hc_schedule(hc, batch);
    282332        if (ret != EOK) {
    283333                batch_dispose(batch);
    … …  
    306356    size_t size, usbhc_iface_transfer_out_callback_t callback, void *arg)
    307357{
    308         assert(fun);
    309 
    310         // FIXME: get from endpoint manager
    311         size_t max_packet_size = 8;
    312 
    313         hc_t *hc = fun_to_hc(fun);
    314         assert(hc);
    315         usb_speed_t speed =
    316             usb_device_keeper_get_speed(&hc->manager, target.address);
    317 
    318         usb_log_debug("Bulk OUT %d:%d %zu(%zu).\n",
    319             target.address, target.endpoint, size, max_packet_size);
    320 
    321         usb_transfer_batch_t *batch =
    322             batch_get(fun, target, USB_TRANSFER_BULK, max_packet_size, speed,
    323                 data, size, NULL, 0, NULL, callback, arg, &hc->manager);
    324         if (!batch)
    325                 return ENOMEM;
     358        usb_transfer_batch_t *batch = NULL;
     359        hc_t *hc = NULL;
     360        int ret = setup_batch(fun, target, USB_DIRECTION_OUT, data, size,
     361            NULL, 0, NULL, callback, arg, "Bulk OUT", &hc, &batch);
     362        if (ret != EOK)
     363                return ret;
    326364        batch_bulk_out(batch);
    327         const int ret = hc_schedule(hc, batch);
     365        ret = hc_schedule(hc, batch);
    328366        if (ret != EOK) {
    329367                batch_dispose(batch);
    … …  
    352390    size_t size, usbhc_iface_transfer_in_callback_t callback, void *arg)
    353391{
    354         assert(fun);
    355 
    356         // FIXME: get from endpoint manager
    357         size_t max_packet_size = 8;
    358 
    359         hc_t *hc = fun_to_hc(fun);
    360         assert(hc);
    361         usb_speed_t speed =
    362             usb_device_keeper_get_speed(&hc->manager, target.address);
    363         usb_log_debug("Bulk IN %d:%d %zu(%zu).\n",
    364             target.address, target.endpoint, size, max_packet_size);
    365 
    366         usb_transfer_batch_t *batch =
    367             batch_get(fun, target, USB_TRANSFER_BULK, max_packet_size, speed,
    368                 data, size, NULL, 0, callback, NULL, arg, &hc->manager);
    369         if (!batch)
    370                 return ENOMEM;
     392        usb_transfer_batch_t *batch = NULL;
     393        hc_t *hc = NULL;
     394        int ret = setup_batch(fun, target, USB_DIRECTION_IN, data, size,
     395            NULL, 0, callback, NULL, arg, "Bulk IN", &hc, &batch);
     396        if (ret != EOK)
     397                return ret;
    371398        batch_bulk_in(batch);
    372         const int ret = hc_schedule(hc, batch);
     399        ret = hc_schedule(hc, batch);
    373400        if (ret != EOK) {
    374401                batch_dispose(batch);
    … …  
    401428    usbhc_iface_transfer_out_callback_t callback, void *arg)
    402429{
    403         assert(fun);
    404 
    405         // FIXME: get from endpoint manager
    406         size_t max_packet_size = 8;
    407 
    408         hc_t *hc = fun_to_hc(fun);
    409         assert(hc);
    410         usb_speed_t speed =
    411             usb_device_keeper_get_speed(&hc->manager, target.address);
    412         usb_log_debug("Control WRITE (%d) %d:%d %zu(%zu).\n",
    413             speed, target.address, target.endpoint, size, max_packet_size);
    414 
    415         if (setup_size != 8)
    416                 return EINVAL;
    417 
    418         usb_transfer_batch_t *batch =
    419             batch_get(fun, target, USB_TRANSFER_CONTROL, max_packet_size,
    420                 speed, data, size, setup_data, setup_size, NULL, callback, arg,
    421                 &hc->manager);
    422         if (!batch)
    423                 return ENOMEM;
     430        usb_transfer_batch_t *batch = NULL;
     431        hc_t *hc = NULL;
     432        int ret = setup_batch(fun, target, USB_DIRECTION_BOTH, data, size,
     433            setup_data, setup_size, NULL, callback, arg, "Control WRITE",
     434            &hc, &batch);
     435        if (ret != EOK)
     436                return ret;
    424437        usb_device_keeper_reset_if_need(&hc->manager, target, setup_data);
    425438        batch_control_write(batch);
    426         const int ret = hc_schedule(hc, batch);
     439        ret = hc_schedule(hc, batch);
    427440        if (ret != EOK) {
    428441                batch_dispose(batch);
    … …  
    455468    usbhc_iface_transfer_in_callback_t callback, void *arg)
    456469{
    457         assert(fun);
    458 
    459         // FIXME: get from endpoint manager
    460         size_t max_packet_size = 8;
    461 
    462         hc_t *hc = fun_to_hc(fun);
    463         assert(hc);
    464         usb_speed_t speed =
    465             usb_device_keeper_get_speed(&hc->manager, target.address);
    466 
    467         usb_log_debug("Control READ(%d) %d:%d %zu(%zu).\n",
    468             speed, target.address, target.endpoint, size, max_packet_size);
    469         usb_transfer_batch_t *batch =
    470             batch_get(fun, target, USB_TRANSFER_CONTROL, max_packet_size,
    471                 speed, data, size, setup_data, setup_size, callback, NULL, arg,
    472                 &hc->manager);
    473         if (!batch)
    474                 return ENOMEM;
     470        usb_transfer_batch_t *batch = NULL;
     471        hc_t *hc = NULL;
     472        int ret = setup_batch(fun, target, USB_DIRECTION_BOTH, data, size,
     473            setup_data, setup_size, callback, NULL, arg, "Control READ",
     474            &hc, &batch);
     475        if (ret != EOK)
     476                return ret;
    475477        batch_control_read(batch);
    476         const int ret = hc_schedule(hc, batch);
     478        ret = hc_schedule(hc, batch);
    477479        if (ret != EOK) {
    478480                batch_dispose(batch);
    … …  
    481483}
    482484/*----------------------------------------------------------------------------*/
    483 /** Host controller interface implementation for OHCI. */
    484485usbhc_iface_t hc_iface = {
    485486        .reserve_default_address = reserve_default_address,
    … …  
    501502        .control_read = control_read,
    502503};
    503 
    504504/**
    505505 * @}

  • uspace/drv/ohci/ohci_regs.h

    rb6c9e1e rc6394aa  
    4141        const volatile uint32_t revision;
    4242        volatile uint32_t control;
    43 #define C_CSBR_MASK (0x3)
     43#define C_CSBR_MASK (0x3) /* Control-bulk service ratio */
     44#define C_CSBR_1_1  (0x0)
     45#define C_CSBR_1_2  (0x1)
     46#define C_CSBR_1_3  (0x2)
     47#define C_CSBR_1_4  (0x3)
    4448#define C_CSBR_SHIFT (0)
    45 #define C_PLE (1 << 2)
    46 #define C_IE (1 << 3)
    47 #define C_CLE (1 << 4)
    48 #define C_BLE (1 << 5)
    49 
    50 #define C_HCFS_MASK (0x3)
    51 #define C_HCFS_SHIFT (6)
    52 #define C_HCFS_RESET (0x0)
     49
     50#define C_PLE (1 << 2)   /* Periodic list enable */
     51#define C_IE  (1 << 3)   /* Isochronous enable */
     52#define C_CLE (1 << 4)   /* Control list enable */
     53#define C_BLE (1 << 5)   /* Bulk list enable */
     54
     55#define C_HCFS_MASK        (0x3) /* Host controller functional state */
     56#define C_HCFS_RESET       (0x0)
    5357#define C_HCFS_OPERATIONAL (0x1)
    54 #define C_HCFS_RESUME (0x2)
    55 #define C_HCFS_SUSPEND (0x3)
    56 
    57 #define C_IR (1 << 8)
    58 #define C_RWC (1 << 9)
    59 #define C_RWE (1 << 10)
     58#define C_HCFS_RESUME      (0x2)
     59#define C_HCFS_SUSPEND     (0x3)
     60#define C_HCFS_SHIFT       (6)
     61
     62#define C_IR  (1 << 8)   /* Interrupt routing, make sure it's 0 */
     63#define C_RWC (1 << 9)   /* Remote wakeup connected, host specific */
     64#define C_RWE (1 << 10)  /* Remote wakeup enable */
    6065
    6166        volatile uint32_t command_status;
    62 #define CS_HCR (1 << 0)
    63 #define CS_CLF (1 << 1)
    64 #define CS_BLF (1 << 2)
    65 #define CS_OCR (1 << 3)
    66 #define CS_SOC_MASK (0x3)
     67#define CS_HCR (1 << 0)   /* Host controller reset */
     68#define CS_CLF (1 << 1)   /* Control list filled */
     69#define CS_BLF (1 << 2)   /* Bulk list filled */
     70#define CS_OCR (1 << 3)   /* Ownership change request */
     71#define CS_SOC_MASK (0x3) /* Scheduling overrun count */
    6772#define CS_SOC_SHIFT (16)
    6873
    6974        volatile uint32_t interrupt_status;
    70 #define IS_SO (1 << 0)
    71 #define IS_WDH (1 << 1)
    72 #define IS_SF (1 << 2)
    73 #define IS_RD (1 << 3)
    74 #define IS_UE (1 << 4)
    75 #define IS_FNO (1 << 5)
    76 #define IS_RHSC (1 << 6)
    77 #define IS_OC (1 << 30)
    78 
     75#define IS_SO   (1 << 0)  /* Scheduling overrun */
     76#define IS_WDH  (1 << 1)  /* Write-back done head */
     77#define IS_SF   (1 << 2)  /* Start of frame */
     78#define IS_RD   (1 << 3)  /* Resume detected */
     79#define IS_UE   (1 << 4)  /* Unrecoverable error */
     80#define IS_FNO  (1 << 5)  /* Frame number overflow */
     81#define IS_RHSC (1 << 6)  /* Root hub status change */
     82#define IS_OC   (1 << 30) /* Ownership change */
     83
     84        /** Interupt enable/disable, reads give the same value, writing causes
     85         * enable/disable */
    7986        volatile uint32_t interupt_enable;
    80 #define IE_SO   (1 << 0)
    81 #define IE_WDH  (1 << 1)
    82 #define IE_SF   (1 << 2)
    83 #define IE_RD   (1 << 3)
    84 #define IE_UE   (1 << 4)
    85 #define IE_FNO  (1 << 5)
    86 #define IE_RHSC (1 << 6)
    87 #define IE_OC   (1 << 30)
    88 #define IE_MIE  (1 << 31)
    89 
    9087        volatile uint32_t interrupt_disable;
     88#define I_SO   (1 << 0)   /* Scheduling overrun */
     89#define I_WDH  (1 << 1)   /* Done head write-back */
     90#define I_SF   (1 << 2)   /* Start of frame */
     91#define I_RD   (1 << 3)   /* Resume detect */
     92#define I_UE   (1 << 4)   /* Unrecoverable error */
     93#define I_FNO  (1 << 5)   /* Frame number overflow */
     94#define I_RHSC (1 << 6)   /* Root hub status change */
     95#define I_OC   (1 << 30)  /* Ownership change */
     96#define I_MI   (1 << 31)  /* Master interrupt (all/any interrupts) */
     97
     98        /** HCCA pointer (see hw_struct hcca.h) */
    9199        volatile uint32_t hcca;
    92         volatile uint32_t period_corrent;
     100#define HCCA_PTR_MASK 0xffffff00 /* HCCA is 256B aligned */
     101
     102        /** Currently executed period endpoint */
     103        const volatile uint32_t period_current;
     104
     105        /** The first control endpoint */
    93106        volatile uint32_t control_head;
     107
     108        /** Currently executed control endpoint */
    94109        volatile uint32_t control_current;
     110
     111        /** The first bulk endpoint */
    95112        volatile uint32_t bulk_head;
     113
     114        /** Currently executed bulk endpoint */
    96115        volatile uint32_t bulk_current;
    97         volatile uint32_t done_head;
     116
     117        /** Done TD list, this value is periodically written to HCCA */
     118        const volatile uint32_t done_head;
     119
     120        /** Frame time and max packet size for all transfers */
    98121        volatile uint32_t fm_interval;
    99         volatile uint32_t fm_remaining;
    100         volatile uint32_t fm_number;
     122#define FMI_FI_MASK (0x1fff) /* Frame interval in bit times (should be 11999)*/
     123#define FMI_FI_SHIFT (0)
     124#define FMI_FSMPS_MASK (0x7fff) /* Full speed max packet size */
     125#define FMI_FSMPS_SHIFT (16)
     126#define FMI_TOGGLE_FLAG (1 << 31)
     127
     128        /** Bit times remaining in current frame */
     129        const volatile uint32_t fm_remaining;
     130#define FMR_FR_MASK FMI_FI_MASK
     131#define FMR_FR_SHIFT FMI_FI_SHIFT
     132#define FMR_TOGGLE_FLAG FMI_TOGGLE_FLAG
     133
     134        /** Frame number */
     135        const volatile uint32_t fm_number;
     136#define FMN_NUMBER_MASK (0xffff)
     137
     138        /** Remaining bit time in frame to start periodic transfers */
    101139        volatile uint32_t periodic_start;
     140#define PS_PS_MASK (0x1fff) /* bit time when periodic get priority (0x3e67) */
     141
     142        /** Threshold for starting LS transaction */
    102143        volatile uint32_t ls_threshold;
     144#define LST_LST_MASK (0x7fff)
     145
     146        /** The first root hub control register */
    103147        volatile uint32_t rh_desc_a;
     148#define RHDA_NDS_MASK (0xff) /* Number of downstream ports, max 15 */
     149#define RHDA_NDS_SHIFT (0)
     150#define RHDA_PSM_FLAG  (1 << 8)  /* Power switching mode: 0-global, 1-per port*/
     151#define RHDA_NPS_FLAG  (1 << 9)  /* No power switch: 1-power on, 0-use PSM*/
     152#define RHDA_DT_FLAG   (1 << 10) /* 1-Compound device, must be 0 */
     153#define RHDA_OCPM_FLAG (1 << 11) /* Over-current mode: 0-global, 1-per port */
     154#define RHDA_NOCP      (1 << 12) /* OC control: 0-use OCPM, 1-OC off */
     155#define RHDA_POTPGT_MASK (0xff)  /* Power on to power good time */
     156#define RHDA_POTPGT_SHIFT (24)
     157
     158        /** The other root hub control register */
    104159        volatile uint32_t rh_desc_b;
     160#define RHDB_DR_MASK (0xffff) /* Device removable mask */
     161#define RHDB_DR_SHIFT (0)
     162#define RHDB_PCC_MASK (0xffff) /* Power control mask */
     163#define RHDB_PCC_SHIFT (16)
     164
     165/* Port device removable status */
     166#define RHDB_DR_FLAG(port) (((1 << port) & RHDB_DR_MASK) << RHDB_DR_SHIFT)
     167/* Port power control status: 1-per port power control, 0-global power switch */
     168#define RHDB_PPC_FLAG(port) (((1 << port) & RHDB_DR_MASK) << RHDB_DR_SHIFT)
     169
     170        /** Root hub status register */
    105171        volatile uint32_t rh_status;
     172#define RHS_LPS_FLAG  (1 <<  0)/* read: 0,
     173                                * write: 0-no effect,
     174                                *        1-turn off port power for ports
     175                                *        specified in PPCM(RHDB), or all ports,
     176                                *        if power is set globally */
     177#define RHS_CLEAR_PORT_POWER RHS_LPS_FLAG /* synonym for the above */
     178#define RHS_OCI_FLAG  (1 <<  1)/* Over-current indicator, if per-port: 0 */
     179#define RHS_DRWE_FLAG (1 << 15)/* read: 0-connect status change does not wake HC
     180                                *       1-connect status change wakes HC
     181                                * write: 1-set DRWE, 0-no effect */
     182#define RHS_SET_DRWE RHS_DRWE_FLAG
     183#define RHS_LPSC_FLAG (1 << 16)/* read: 0,
     184                                * write: 0-no effect
     185                                *        1-turn on port power for ports
     186                                *        specified in PPCM(RHDB), or all ports,
     187                                *        if power is set globally */
     188#define RHS_SET_PORT_POWER RHS_LPSC_FLAG /* synonym for the above */
     189#define RHS_OCIC_FLAG (1 << 17)/* Over-current indicator change   */
     190#define RHS_CLEAR_DRWE (1 << 31)
     191
     192        /** Root hub per port status */
    106193        volatile uint32_t rh_port_status[];
     194#define RHPS_CCS_FLAG (1 << 0) /* r: current connect status,
     195                                * w: 1-clear port enable, 0-nothing */
     196#define RHPS_CLEAR_PORT_ENABLE RHPS_CCS_FLAG
     197#define RHPS_PES_FLAG (1 << 1) /* r: port enable status
     198                                * w: 1-set port enable, 0-nothing */
     199#define RHPS_SET_PORT_ENABLE RHPS_PES_FLAG
     200#define RHPS_PSS_FLAG (1 << 2) /* r: port suspend status
     201                                * w: 1-set port suspend, 0-nothing */
     202#define RHPS_SET_PORT_SUSPEND RHPS_PSS_FLAG
     203#define RHPS_POCI_FLAG (1 << 3) /* r: port over-current (if reports are per-port
     204                                 * w: 1-clear port suspend (start resume
     205                                 *      if suspened)
     206                                 *    0-nothing */
     207#define RHPS_CLEAR_PORT_SUSPEND RHPS_POCI_FLAG
     208#define RHPS_PRS_FLAG (1 << 4) /* r: port reset status
     209                                * w: 1-set port reset, 0-nothing */
     210#define RHPS_SET_PORT_RESET RHPS_PRS_FLAG
     211#define RHPS_PPS_FLAG (1 << 8) /* r: port power status
     212                                * w: 1-set port power, 0-nothing */
     213#define RHPS_SET_PORT_POWER RHPS_PPS_FLAG
     214#define RHPS_LSDA_FLAG (1 << 9) /* r: low speed device attached
     215                                 * w: 1-clear port power, 0-nothing */
     216#define RHPS_CLEAR_PORT_POWER RHPS_LSDA_FLAG
     217#define RHPS_CSC_FLAG  (1 << 16) /* connect status change Write-Clean */
     218#define RHPS_PESC_FLAG (1 << 17) /* port enable status change WC */
     219#define RHPS_PSSC_FLAG (1 << 18) /* port suspend status change WC */
     220#define RHPS_OCIC_FLAG (1 << 19) /* port over-current change WC */
     221#define RHPS_PRSC_FLAG (1 << 20) /* port reset status change WC */
     222#define RHPS_CHANGE_WC_MASK 0x1f0000
    107223} __attribute__((packed)) ohci_regs_t;
    108224#endif

  • uspace/drv/ohci/utils/malloc32.h

    rb6c9e1e rc6394aa  
    3737#include <assert.h>
    3838#include <malloc.h>
     39#include <errno.h>
    3940#include <mem.h>
    4041#include <as.h>

  • uspace/drv/uhci-hcd/batch.c

    rb6c9e1e rc6394aa  
    103103        usb_target_t target =
    104104            { .address = ep->address, .endpoint = ep->endpoint };
    105         usb_transfer_batch_init(instance, target,
    106             ep->transfer_type, ep->speed, ep->max_packet_size,
    107             buffer, NULL, buffer_size, NULL, setup_size, func_in,
    108             func_out, arg, fun, ep, NULL);
     105        usb_transfer_batch_init(instance, target, ep->transfer_type, ep->speed,
     106            ep->max_packet_size, buffer, NULL, buffer_size, NULL, setup_size,
     107            func_in, func_out, arg, fun, ep, NULL);
    109108
    110109
    111110        uhci_batch_t *data = malloc(sizeof(uhci_batch_t));
    112         CHECK_NULL_DISPOSE_RETURN(instance,
    113             "Failed to allocate batch instance.\n");
     111        CHECK_NULL_DISPOSE_RETURN(data, "Failed to allocate batch data.\n");
    114112        bzero(data, sizeof(uhci_batch_t));
    115113        instance->private_data = data;

  • uspace/drv/uhci-hcd/hc.c

    rb6c9e1e rc6394aa  
    240240        usb_log_debug("Initialized device manager.\n");
    241241
    242         ret =
    243             usb_endpoint_manager_init(&instance->ep_manager,
    244                 BANDWIDTH_AVAILABLE_USB11);
     242        ret = usb_endpoint_manager_init(&instance->ep_manager,
     243            BANDWIDTH_AVAILABLE_USB11);
    245244        assert(ret == EOK);
    246245

  • uspace/drv/usbmid/main.c

    rb6c9e1e rc6394aa  
    5555        int rc;
    5656
    57         rc = usb_pipe_start_session(&dev->ctrl_pipe);
     57        rc = usb_pipe_start_long_transfer(&dev->ctrl_pipe);
    5858        if (rc != EOK) {
    59                 usb_log_error("Failed to start session on control pipe: %s.\n",
     59                usb_log_error("Failed to start transfer on control pipe: %s.\n",
    6060                    str_error(rc));
    6161                return rc;
    … …  
    6464        bool accept = usbmid_explore_device(dev);
    6565
    66         rc = usb_pipe_end_session(&dev->ctrl_pipe);
    67         if (rc != EOK) {
    68                 usb_log_warning("Failed to end session on control pipe: %s.\n",
    69                     str_error(rc));
    70         }
     66        usb_pipe_end_long_transfer(&dev->ctrl_pipe);
    7167
    7268        if (!accept) {

  • uspace/lib/usb/Makefile

    rb6c9e1e rc6394aa  
    4343        src/hidparser.c \
    4444        src/hub.c \
     45        src/pipepriv.c \
    4546        src/pipes.c \
    4647        src/pipesinit.c \

  • uspace/lib/usb/include/usb/pipes.h

    rb6c9e1e rc6394aa  
    4242#include <ipc/devman.h>
    4343#include <ddf/driver.h>
     44#include <fibril_synch.h>
    4445
    4546/** Abstraction of a physical connection to the device.
    … …  
    5960 * This endpoint must be bound with existing usb_device_connection_t
    6061 * (i.e. the wire to send data over).
     62 *
     63 * Locking order: if you want to lock both mutexes
     64 * (@c guard and @c hc_phone_mutex), lock @c guard first.
     65 * It is not necessary to lock @c guard if you want to lock @c hc_phone_mutex
     66 * only.
    6167 */
    6268typedef struct {
     69        /** Guard of the whole pipe. */
     70        fibril_mutex_t guard;
     71
    6372        /** The connection used for sending the data. */
    6473        usb_device_connection_t *wire;
    … …  
    7887        /** Phone to the host controller.
    7988         * Negative when no session is active.
     89         * It is an error to access this member without @c hc_phone_mutex
     90         * being locked.
     91         * If call over the phone is to be made, it must be preceeded by
     92         * call to pipe_add_ref() [internal libusb function].
    8093         */
    8194        int hc_phone;
     95
     96        /** Guard for serialization of requests over the phone. */
     97        fibril_mutex_t hc_phone_mutex;
     98
     99        /** Number of active transfers over the pipe. */
     100        int refcount;
    82101} usb_pipe_t;
    83102
    … …  
    143162bool usb_pipe_is_session_started(usb_pipe_t *);
    144163
     164int usb_pipe_start_long_transfer(usb_pipe_t *);
     165void usb_pipe_end_long_transfer(usb_pipe_t *);
     166
    145167int usb_pipe_read(usb_pipe_t *, void *, size_t, size_t *);
    146168int usb_pipe_write(usb_pipe_t *, void *, size_t);

  • uspace/lib/usb/src/devdrv.c

    rb6c9e1e rc6394aa  
    161161
    162162        /*
    163          * For further actions, we need open session on default control pipe.
     163         * We will do some querying of the device, it is worth to prepare
     164         * the long transfer.
    164165         */
    165         rc = usb_pipe_start_session(&dev->ctrl_pipe);
    166         if (rc != EOK) {
    167                 usb_log_error("Failed to start an IPC session: %s.\n",
     166        rc = usb_pipe_start_long_transfer(&dev->ctrl_pipe);
     167        if (rc != EOK) {
     168                usb_log_error("Failed to start transfer: %s.\n",
    168169                    str_error(rc));
    169170                return rc;
    … …  
    185186        }
    186187
    187         /* No checking here. */
    188         usb_pipe_end_session(&dev->ctrl_pipe);
     188        usb_pipe_end_long_transfer(&dev->ctrl_pipe);
    189189
    190190        /* Rollback actions. */

  • uspace/lib/usb/src/devpoll.c

    rb6c9e1e rc6394aa  
    7777                int rc;
    7878
    79                 rc = usb_pipe_start_session(pipe);
    80                 if (rc != EOK) {
    81                         failed_attempts++;
    82                         continue;
    83                 }
    84 
    8579                size_t actual_size;
    8680                rc = usb_pipe_read(pipe, polling_data->buffer,
    8781                    polling_data->request_size, &actual_size);
    8882
    89                 /* Quit the session regardless of errors. */
    90                 usb_pipe_end_session(pipe);
    9183               
    9284//              if (rc == ESTALL) {

  • uspace/lib/usb/src/host/batch.c

    rb6c9e1e rc6394aa  
    6363        instance->transfer_type = transfer_type;
    6464        instance->speed = speed;
    65         instance->direction = USB_DIRECTION_BOTH;
     65        instance->direction = ep->direction;
    6666        instance->callback_in = func_in;
    6767        instance->callback_out = func_out;

  • uspace/lib/usb/src/hub.c

    rb6c9e1e rc6394aa  
    288288        }
    289289
    290 
    291         rc = usb_pipe_start_session(&ctrl_pipe);
    292         if (rc != EOK) {
    293                 rc = ENOTCONN;
     290        rc = usb_request_set_address(&ctrl_pipe, dev_addr);
     291        if (rc != EOK) {
     292                rc = ESTALL;
    294293                goto leave_release_default_address;
    295294        }
    296 
    297         rc = usb_request_set_address(&ctrl_pipe, dev_addr);
    298         if (rc != EOK) {
    299                 rc = ESTALL;
    300                 goto leave_stop_session;
    301         }
    302 
    303         usb_pipe_end_session(&ctrl_pipe);
    304295
    305296        /*
    … …  
    361352         * Completely ignoring errors here.
    362353         */
    363 
    364 leave_stop_session:
    365         usb_pipe_end_session(&ctrl_pipe);
    366 
    367354leave_release_default_address:
    368355        usb_pipe_unregister(&ctrl_pipe, &hc_conn);

  • uspace/lib/usb/src/pipes.c

    rb6c9e1e rc6394aa  
    4141#include <errno.h>
    4242#include <assert.h>
     43#include "pipepriv.h"
    4344
    4445#define IPC_AGAIN_DELAY (1000 * 2) /* 2ms */
    … …  
    241242 * necessary.
    242243 *
     244 * @deprecated
     245 * Obsoleted with introduction of usb_pipe_start_long_transfer
     246 *
    243247 * @param pipe Endpoint pipe to start the session on.
    244248 * @return Error code.
    … …  
    246250int usb_pipe_start_session(usb_pipe_t *pipe)
    247251{
    248         assert(pipe);
    249 
    250         if (usb_pipe_is_session_started(pipe)) {
    251                 return EBUSY;
    252         }
    253 
    254         int phone = devman_device_connect(pipe->wire->hc_handle, 0);
    255         if (phone < 0) {
    256                 return phone;
    257         }
    258 
    259         pipe->hc_phone = phone;
    260 
     252        usb_log_warning("usb_pipe_start_session() was deprecated.\n");
    261253        return EOK;
    262254}
    … …  
    265257/** Ends a session on the endpoint pipe.
    266258 *
     259 * @deprecated
     260 * Obsoleted with introduction of usb_pipe_end_long_transfer
     261 *
    267262 * @see usb_pipe_start_session
    268263 *
    … …  
    272267int usb_pipe_end_session(usb_pipe_t *pipe)
    273268{
    274         assert(pipe);
    275 
    276         if (!usb_pipe_is_session_started(pipe)) {
    277                 return ENOENT;
    278         }
    279 
    280         int rc = async_hangup(pipe->hc_phone);
    281         if (rc != EOK) {
    282                 return rc;
    283         }
    284 
    285         pipe->hc_phone = -1;
    286 
     269        usb_log_warning("usb_pipe_end_session() was deprecated.\n");
    287270        return EOK;
    288271}
    … …  
    298281bool usb_pipe_is_session_started(usb_pipe_t *pipe)
    299282{
    300         return (pipe->hc_phone >= 0);
     283        pipe_acquire(pipe);
     284        bool started = pipe->refcount > 0;
     285        pipe_release(pipe);
     286        return started;
     287}
     288
     289/** Prepare pipe for a long transfer.
     290 *
     291 * By a long transfer is mean transfer consisting of several
     292 * requests to the HC.
     293 * Calling such function is optional and it has positive effect of
     294 * improved performance because IPC session is initiated only once.
     295 *
     296 * @param pipe Pipe over which the transfer will happen.
     297 * @return Error code.
     298 */
     299int usb_pipe_start_long_transfer(usb_pipe_t *pipe)
     300{
     301        return pipe_add_ref(pipe);
     302}
     303
     304/** Terminate a long transfer on a pipe.
     305 *
     306 * @see usb_pipe_start_long_transfer
     307 *
     308 * @param pipe Pipe where to end the long transfer.
     309 */
     310void usb_pipe_end_long_transfer(usb_pipe_t *pipe)
     311{
     312        pipe_drop_ref(pipe);
    301313}
    302314

  • uspace/lib/usb/src/pipesinit.c

    rb6c9e1e rc6394aa  
    356356        assert(connection);
    357357
     358        fibril_mutex_initialize(&pipe->guard);
    358359        pipe->wire = connection;
    359360        pipe->hc_phone = -1;
     361        fibril_mutex_initialize(&pipe->hc_phone_mutex);
    360362        pipe->endpoint_no = endpoint_no;
    361363        pipe->transfer_type = transfer_type;
    362364        pipe->max_packet_size = max_packet_size;
    363365        pipe->direction = direction;
     366        pipe->refcount = 0;
    364367
    365368        return EOK;
    … …  
    413416        int rc;
    414417
    415         TRY_LOOP(failed_attempts) {
    416                 rc = usb_pipe_start_session(pipe);
    417                 if (rc == EOK) {
    418                         break;
    419                 }
    420         }
     418        rc = usb_pipe_start_long_transfer(pipe);
    421419        if (rc != EOK) {
    422420                return rc;
    … …  
    439437                }
    440438        }
    441         usb_pipe_end_session(pipe);
     439        usb_pipe_end_long_transfer(pipe);
    442440        if (rc != EOK) {
    443441                return rc;

  • uspace/lib/usb/src/pipesio.c

    rb6c9e1e rc6394aa  
    4949#include <assert.h>
    5050#include <usbhc_iface.h>
     51#include "pipepriv.h"
    5152
    5253/** Request an in transfer, no checking of input parameters.
    … …  
    7879        }
    7980
     81        /* Ensure serialization over the phone. */
     82        pipe_start_transaction(pipe);
     83
    8084        /*
    8185         * Make call identifying target USB device and type of transfer.
    … …  
    8791            NULL);
    8892        if (opening_request == 0) {
     93                pipe_end_transaction(pipe);
    8994                return ENOMEM;
    9095        }
    … …  
    96101        aid_t data_request = async_data_read(pipe->hc_phone, buffer, size,
    97102            &data_request_call);
     103
     104        /*
     105         * Since now on, someone else might access the backing phone
     106         * without breaking the transfer IPC protocol.
     107         */
     108        pipe_end_transaction(pipe);
    98109
    99110        if (data_request == 0) {
    … …  
    146157
    147158        if (buffer == NULL) {
    148                         return EINVAL;
     159                return EINVAL;
    149160        }
    150161
    151162        if (size == 0) {
    152163                return EINVAL;
    153         }
    154 
    155         if (!usb_pipe_is_session_started(pipe)) {
    156                 return EBADF;
    157164        }
    158165
    … …  
    165172        }
    166173
     174        int rc;
     175        rc = pipe_add_ref(pipe);
     176        if (rc != EOK) {
     177                return rc;
     178        }
     179
     180
    167181        size_t act_size = 0;
    168         int rc;
    169182
    170183        rc = usb_pipe_read_no_checks(pipe, buffer, size, &act_size);
     184
     185        pipe_drop_ref(pipe);
     186
    171187        if (rc != EOK) {
    172188                return rc;
    … …  
    210226        }
    211227
     228        /* Ensure serialization over the phone. */
     229        pipe_start_transaction(pipe);
     230
    212231        /*
    213232         * Make call identifying target USB device and type of transfer.
    … …  
    219238            NULL);
    220239        if (opening_request == 0) {
     240                pipe_end_transaction(pipe);
    221241                return ENOMEM;
    222242        }
    … …  
    226246         */
    227247        int rc = async_data_write_start(pipe->hc_phone, buffer, size);
     248
     249        /*
     250         * Since now on, someone else might access the backing phone
     251         * without breaking the transfer IPC protocol.
     252         */
     253        pipe_end_transaction(pipe);
     254
    228255        if (rc != EOK) {
    229256                async_wait_for(opening_request, NULL);
    … …  
    260287        }
    261288
    262         if (!usb_pipe_is_session_started(pipe)) {
    263                 return EBADF;
    264         }
    265 
    266289        if (pipe->direction != USB_DIRECTION_OUT) {
    267290                return EBADF;
    … …  
    272295        }
    273296
    274         int rc = usb_pipe_write_no_check(pipe, buffer, size);
     297        int rc;
     298
     299        rc = pipe_add_ref(pipe);
     300        if (rc != EOK) {
     301                return rc;
     302        }
     303
     304        rc = usb_pipe_write_no_check(pipe, buffer, size);
     305
     306        pipe_drop_ref(pipe);
    275307
    276308        return rc;
    … …  
    293325    void *data_buffer, size_t data_buffer_size, size_t *data_transfered_size)
    294326{
     327        /* Ensure serialization over the phone. */
     328        pipe_start_transaction(pipe);
     329
    295330        /*
    296331         * Make call identifying target USB device and control transfer type.
    … …  
    311346            setup_buffer, setup_buffer_size);
    312347        if (rc != EOK) {
     348                pipe_end_transaction(pipe);
    313349                async_wait_for(opening_request, NULL);
    314350                return rc;
    … …  
    322358            data_buffer, data_buffer_size,
    323359            &data_request_call);
     360
     361        /*
     362         * Since now on, someone else might access the backing phone
     363         * without breaking the transfer IPC protocol.
     364         */
     365        pipe_end_transaction(pipe);
     366
     367
    324368        if (data_request == 0) {
    325369                async_wait_for(opening_request, NULL);
    … …  
    379423        }
    380424
    381         if (!usb_pipe_is_session_started(pipe)) {
    382                 return EBADF;
    383         }
    384 
    385425        if ((pipe->direction != USB_DIRECTION_BOTH)
    386426            || (pipe->transfer_type != USB_TRANSFER_CONTROL)) {
    … …  
    388428        }
    389429
     430        int rc;
     431
     432        rc = pipe_add_ref(pipe);
     433        if (rc != EOK) {
     434                return rc;
     435        }
     436
    390437        size_t act_size = 0;
    391         int rc = usb_pipe_control_read_no_check(pipe,
     438        rc = usb_pipe_control_read_no_check(pipe,
    392439            setup_buffer, setup_buffer_size,
    393440            data_buffer, data_buffer_size, &act_size);
     441
     442        pipe_drop_ref(pipe);
    394443
    395444        if (rc != EOK) {
    … …  
    418467    void *data_buffer, size_t data_buffer_size)
    419468{
     469        /* Ensure serialization over the phone. */
     470        pipe_start_transaction(pipe);
     471
    420472        /*
    421473         * Make call identifying target USB device and control transfer type.
    … …  
    428480            NULL);
    429481        if (opening_request == 0) {
     482                pipe_end_transaction(pipe);
    430483                return ENOMEM;
    431484        }
    … …  
    437490            setup_buffer, setup_buffer_size);
    438491        if (rc != EOK) {
     492                pipe_end_transaction(pipe);
    439493                async_wait_for(opening_request, NULL);
    440494                return rc;
    … …  
    447501                rc = async_data_write_start(pipe->hc_phone,
    448502                    data_buffer, data_buffer_size);
     503
     504                /* All data sent, pipe can be released. */
     505                pipe_end_transaction(pipe);
     506
    449507                if (rc != EOK) {
    450508                        async_wait_for(opening_request, NULL);
    451509                        return rc;
    452510                }
     511        } else {
     512                /* No data to send, we can release the pipe for others. */
     513                pipe_end_transaction(pipe);
    453514        }
    454515
    … …  
    491552        }
    492553
    493         if (!usb_pipe_is_session_started(pipe)) {
    494                 return EBADF;
    495         }
    496 
    497554        if ((pipe->direction != USB_DIRECTION_BOTH)
    498555            || (pipe->transfer_type != USB_TRANSFER_CONTROL)) {
    … …  
    500557        }
    501558
    502         int rc = usb_pipe_control_write_no_check(pipe,
     559        int rc;
     560
     561        rc = pipe_add_ref(pipe);
     562        if (rc != EOK) {
     563                return rc;
     564        }
     565
     566        rc = usb_pipe_control_write_no_check(pipe,
    503567            setup_buffer, setup_buffer_size, data_buffer, data_buffer_size);
     568
     569        pipe_drop_ref(pipe);
    504570
    505571        return rc;

  • uspace/lib/usb/src/recognise.c

    rb6c9e1e rc6394aa  
    404404        child->driver_data = dev_data;
    405405
    406         rc = usb_pipe_start_session(&ctrl_pipe);
    407         if (rc != EOK) {
    408                 goto failure;
    409         }
    410 
    411406        rc = usb_device_create_match_ids(&ctrl_pipe, &child->match_ids);
    412         if (rc != EOK) {
    413                 goto failure;
    414         }
    415 
    416         rc = usb_pipe_end_session(&ctrl_pipe);
    417407        if (rc != EOK) {
    418408                goto failure;
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