More endpoint descriptor data held by usb_storage
Makes usb_storage remember endpoint interval and other parameters, instead of endpoint number only.
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parent
d2cf1e60b4
commit
e0f92bef05
4 changed files with 99 additions and 55 deletions
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@ -19,30 +19,30 @@
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*===========================================================================*/
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void
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init_urb(struct ddekit_usb_urb * urb, struct ddekit_usb_dev * dev,
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ddekit_int32_t urb_type, ddekit_int32_t urb_endpoint,
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ddekit_int32_t urb_direction)
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urb_ep_config * conf)
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{
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MASS_DEBUG_DUMP;
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/* Sanity checks */
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assert(NULL != urb);
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assert(NULL != dev);
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assert((DDEKIT_USB_TRANSFER_BLK == urb_type) ||
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(DDEKIT_USB_TRANSFER_CTL == urb_type) ||
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(DDEKIT_USB_TRANSFER_INT == urb_type) ||
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(DDEKIT_USB_TRANSFER_ISO == urb_type));
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assert(urb_endpoint < 16);
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assert((DDEKIT_USB_IN == urb_direction) ||
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(DDEKIT_USB_OUT == urb_direction));
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assert((DDEKIT_USB_TRANSFER_BLK == conf->type) ||
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(DDEKIT_USB_TRANSFER_CTL == conf->type) ||
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(DDEKIT_USB_TRANSFER_INT == conf->type) ||
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(DDEKIT_USB_TRANSFER_ISO == conf->type));
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assert((conf->ep_num >= 0) && (conf->ep_num < 16));
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assert((DDEKIT_USB_IN == conf->direction) ||
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(DDEKIT_USB_OUT == conf->direction));
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/* Clear block first */
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memset(urb, 0, sizeof(*urb));
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/* Set supplied values */
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urb->dev = dev;
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urb->type = urb_type;
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urb->endpoint = urb_endpoint;
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urb->direction = urb_direction;
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urb->type = conf->type;
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urb->endpoint = conf->ep_num;
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urb->direction = conf->direction;
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urb->interval = conf->interval;
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}
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@ -19,11 +19,28 @@
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#define URB_SUBMIT_CHECK_LEN 0 /* return error on length mismatch */
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#define URB_SUBMIT_ALLOW_MISMATCH 1 /* ignore length check */
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/* Endpoint configuration related */
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#define URB_INVALID_EP (-1) /* default for unset endpoint */
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/*---------------------------*
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* declared types *
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*---------------------------*
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/* URB's endpoint configuration */
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typedef struct urb_ep_config {
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ddekit_int32_t ep_num;
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ddekit_int32_t direction;
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ddekit_int32_t type;
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ddekit_int32_t max_packet_size;
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ddekit_int32_t interval;
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}
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urb_ep_config;
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/*---------------------------*
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* declared functions *
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*---------------------------*/
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void init_urb(struct ddekit_usb_urb *, struct ddekit_usb_dev *, ddekit_int32_t,
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ddekit_int32_t, ddekit_int32_t);
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void init_urb(struct ddekit_usb_urb *, struct ddekit_usb_dev *,
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urb_ep_config *);
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void attach_urb_data(struct ddekit_usb_urb *, int, void *, ddekit_uint32_t);
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int blocking_urb_submit(struct ddekit_usb_urb *, ddekit_sem_t *, int);
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@ -81,9 +81,11 @@ static void usb_driver_connect(struct ddekit_usb_dev *, unsigned int);
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static void usb_driver_disconnect(struct ddekit_usb_dev *);
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/* Simplified enumeration method for endpoint resolution */
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static int mass_storage_get_endpoints(int *, int *);
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static int mass_storage_parse_endpoint(usb_descriptor_t *, int *, int *);
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static int mass_storage_parse_descriptors(char *, unsigned int, int *, int *);
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static int mass_storage_get_endpoints(urb_ep_config *, urb_ep_config *);
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static int mass_storage_parse_endpoint(usb_descriptor_t *, urb_ep_config *,
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urb_ep_config *);
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static int mass_storage_parse_descriptors(char *, unsigned int, urb_ep_config *,
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urb_ep_config *);
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/*---------------------------*
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@ -220,8 +222,8 @@ mass_storage_send_scsi_cbw_out(int scsi_cmd, scsi_transfer * info)
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MASS_DEBUG_DUMP;
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/* Reset URB and assign given values */
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init_urb(&urb, driver_state.cur_periph->dev, DDEKIT_USB_TRANSFER_BLK,
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driver_state.cur_periph->ep_out, DDEKIT_USB_OUT);
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init_urb(&urb, driver_state.cur_periph->dev,
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&(driver_state.cur_periph->ep_out));
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/* Reset CBW and assign default values */
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init_cbw(&cbw, last_cbw_tag = current_cbw_tag++);
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@ -253,8 +255,8 @@ mass_storage_send_scsi_data_in(void * buf, unsigned int in_len)
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MASS_DEBUG_DUMP;
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/* Reset URB and assign given values */
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init_urb(&urb, driver_state.cur_periph->dev, DDEKIT_USB_TRANSFER_BLK,
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driver_state.cur_periph->ep_in, DDEKIT_USB_IN);
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init_urb(&urb, driver_state.cur_periph->dev,
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&(driver_state.cur_periph->ep_in));
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/* Attach buffer to URB */
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attach_urb_data(&urb, URB_BUF_TYPE_DATA, buf, in_len);
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@ -279,8 +281,8 @@ mass_storage_send_scsi_data_out(void * buf, unsigned int out_len)
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MASS_DEBUG_DUMP;
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/* Reset URB and assign given values */
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init_urb(&urb, driver_state.cur_periph->dev, DDEKIT_USB_TRANSFER_BLK,
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driver_state.cur_periph->ep_out, DDEKIT_USB_OUT);
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init_urb(&urb, driver_state.cur_periph->dev,
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&(driver_state.cur_periph->ep_out));
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/* Attach buffer to URB */
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attach_urb_data(&urb, URB_BUF_TYPE_DATA, buf, out_len);
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@ -308,8 +310,8 @@ mass_storage_send_scsi_csw_in(void)
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MASS_DEBUG_DUMP;
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/* Reset URB and assign given values */
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init_urb(&urb, driver_state.cur_periph->dev, DDEKIT_USB_TRANSFER_BLK,
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driver_state.cur_periph->ep_in, DDEKIT_USB_IN);
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init_urb(&urb, driver_state.cur_periph->dev,
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&(driver_state.cur_periph->ep_in));
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/* Clear CSW for receiving */
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init_csw(&csw);
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@ -340,11 +342,18 @@ mass_storage_send_bulk_reset(void)
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/* Setup buffer to be send */
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struct usb_ctrlrequest bulk_setup;
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/* Control EP configuration */
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urb_ep_config ep_conf;
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MASS_DEBUG_DUMP;
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/* Initialize EP configuration */
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ep_conf.ep_num = 0;
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ep_conf.direction = DDEKIT_USB_OUT;
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ep_conf.type = DDEKIT_USB_TRANSFER_CTL;
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/* Reset URB and assign given values */
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init_urb(&urb, driver_state.cur_periph->dev, DDEKIT_USB_TRANSFER_CTL, 0,
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DDEKIT_USB_OUT);
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init_urb(&urb, driver_state.cur_periph->dev, &ep_conf);
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/* Clear setup data */
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memset(&bulk_setup, 0, sizeof(bulk_setup));
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@ -908,8 +917,8 @@ mass_storage_open(devminor_t minor, int UNUSED(access))
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/* In case of missing endpoint information, do simple
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* enumeration and hold it for future use */
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if ((-1 == driver_state.cur_periph->ep_in) ||
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(-1 == driver_state.cur_periph->ep_out)) {
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if ((URB_INVALID_EP == driver_state.cur_periph->ep_in.ep_num) ||
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(URB_INVALID_EP == driver_state.cur_periph->ep_out.ep_num)) {
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if (mass_storage_get_endpoints(&driver_state.cur_periph->ep_in,
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&driver_state.cur_periph->ep_out))
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@ -1279,8 +1288,8 @@ usb_driver_connect(struct ddekit_usb_dev * dev,
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/* Hold host information for future use */
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driver_state.cur_periph->dev = dev;
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driver_state.cur_periph->interfaces = interfaces;
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driver_state.cur_periph->ep_in = -1;
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driver_state.cur_periph->ep_out = -1;
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driver_state.cur_periph->ep_in.ep_num = URB_INVALID_EP;
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driver_state.cur_periph->ep_out.ep_num = URB_INVALID_EP;
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}
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@ -1301,8 +1310,8 @@ usb_driver_disconnect(struct ddekit_usb_dev * UNUSED(dev))
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/* Clear */
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driver_state.cur_periph->dev = NULL;
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driver_state.cur_periph->interfaces = 0;
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driver_state.cur_periph->ep_in = -1;
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driver_state.cur_periph->ep_out = -1;
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driver_state.cur_periph->ep_in.ep_num = URB_INVALID_EP;
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driver_state.cur_periph->ep_out.ep_num = URB_INVALID_EP;
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}
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@ -1310,7 +1319,7 @@ usb_driver_disconnect(struct ddekit_usb_dev * UNUSED(dev))
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* mass_storage_get_endpoints *
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*===========================================================================*/
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static int
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mass_storage_get_endpoints(int * ep_in, int * ep_out)
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mass_storage_get_endpoints(urb_ep_config * ep_in, urb_ep_config * ep_out)
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{
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/* URB to be send */
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struct ddekit_usb_urb urb;
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@ -1318,14 +1327,21 @@ mass_storage_get_endpoints(int * ep_in, int * ep_out)
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/* Setup buffer to be attached */
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struct usb_ctrlrequest setup_buf;
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/* Control EP configuration */
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urb_ep_config ep_conf;
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/* Descriptors' buffer */
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unsigned char descriptors[MAX_DESCRIPTORS_LEN];
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MASS_DEBUG_DUMP;
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/* Initialize EP configuration */
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ep_conf.ep_num = 0;
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ep_conf.direction = DDEKIT_USB_IN;
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ep_conf.type = DDEKIT_USB_TRANSFER_CTL;
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/* Reset URB and assign given values */
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init_urb(&urb, driver_state.cur_periph->dev, DDEKIT_USB_TRANSFER_CTL, 0,
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DDEKIT_USB_IN);
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init_urb(&urb, driver_state.cur_periph->dev, &ep_conf);
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/* Clear setup data */
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memset(&setup_buf, 0, sizeof(setup_buf));
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@ -1364,10 +1380,12 @@ mass_storage_get_endpoints(int * ep_in, int * ep_out)
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*===========================================================================*/
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static int
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mass_storage_parse_endpoint(usb_descriptor_t * cur_desc,
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int * ep_in, int * ep_out)
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urb_ep_config * ep_in, urb_ep_config * ep_out)
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{
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usb_endpoint_descriptor_t * ep_desc;
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urb_ep_config * this_ep;
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MASS_DEBUG_DUMP;
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ep_desc = (usb_endpoint_descriptor_t *)cur_desc;
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@ -1378,24 +1396,30 @@ mass_storage_parse_endpoint(usb_descriptor_t * cur_desc,
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/* Check for direction */
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if (UE_DIR_IN == UE_GET_DIR(ep_desc->bEndpointAddress)) {
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if (-1 != *ep_in) {
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MASS_MSG("BULK IN already set");
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return EXIT_FAILURE;
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}
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*ep_in = UE_GET_ADDR(ep_desc->bEndpointAddress);
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this_ep = ep_in;
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this_ep->direction = DDEKIT_USB_IN;
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} else {
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if (-1 != *ep_out) {
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MASS_MSG("BULK OUT already set");
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return EXIT_FAILURE;
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}
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*ep_out = UE_GET_ADDR(ep_desc->bEndpointAddress);
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this_ep = ep_out;
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this_ep->direction = DDEKIT_USB_OUT;
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}
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/* Check if it was set before */
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if (URB_INVALID_EP != this_ep->ep_num) {
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MASS_MSG("BULK EP already set");
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return EXIT_FAILURE;
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}
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/* Assign rest */
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this_ep->ep_num = UE_GET_ADDR(ep_desc->bEndpointAddress);
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this_ep->type = DDEKIT_USB_TRANSFER_BLK;
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this_ep->max_packet_size = UGETW(ep_desc->wMaxPacketSize);
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this_ep->interval = ep_desc->bInterval;
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}
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/* EP type other than bulk, is also correct,
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* just no parsing is performed */
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return EXIT_SUCCESS;
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}
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@ -1404,7 +1428,7 @@ mass_storage_parse_endpoint(usb_descriptor_t * cur_desc,
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*===========================================================================*/
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static int
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mass_storage_parse_descriptors(char * desc_buf, unsigned int buf_len,
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int * ep_in, int * ep_out)
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urb_ep_config * ep_in, urb_ep_config * ep_out)
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{
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/* Currently parsed, descriptors */
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usb_descriptor_t * cur_desc;
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MASS_DEBUG_DUMP;
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/* Parse descriptors to get endpoints */
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*ep_in = -1;
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*ep_out = -1;
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ep_in->ep_num = URB_INVALID_EP;
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ep_out->ep_num = URB_INVALID_EP;
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valid_interface = 0;
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cur_byte = 0;
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@ -1514,7 +1538,8 @@ mass_storage_parse_descriptors(char * desc_buf, unsigned int buf_len,
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return EXIT_FAILURE;
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/* ...and descriptors should be valid */
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if ((-1 == *ep_in) || (-1 == *ep_out)) {
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if ((URB_INVALID_EP == ep_in->ep_num) ||
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(URB_INVALID_EP == ep_out->ep_num)) {
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MASS_MSG("Valid bulk endpoints not found");
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return EXIT_FAILURE;
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}
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@ -9,6 +9,8 @@
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#include <minix/type.h> /* vir_bytes */
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/* TODO: no header for ddekit_usb_dev */
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#include "urb_helper.h"
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/* Number of handled peripherals (USB devices) */
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#define MAX_PERIPHS (1)
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/* Number of handled disks per driver */
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mass_storage_drive drives[MAX_DRIVES]; /* Possible drive info */
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struct ddekit_usb_dev * dev; /* DDEKit device handler */
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unsigned int interfaces; /* Interfaces bitmap */
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int ep_in; /* Bulk IN endpoint*/
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int ep_out; /* Bulk OUT endpoint*/
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urb_ep_config ep_in; /* Bulk IN endpoint */
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urb_ep_config ep_out; /* Bulk OUT endpoint */
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}
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mass_storage_periph;
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