SAMV71-Xult Composite: Now can switch between two different composite configurations dynamically.
This commit is contained in:
Gregory Nutt
parent
815257743d
commit
e4d262436c
@ -86,145 +86,149 @@ FAR void *board_composite_connect(int port, int configid)
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/* Here we are composing the configuration of the usb composite device.
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/* Here we are composing the configuration of the usb composite device.
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*
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*
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* The standard is to use one CDC/ACM and one USB mass storage device.
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* The standard is to use one CDC/ACM and one USB mass storage device.
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*
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* You will also find an example below which generates three CDC/ACM
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* devices. This example can be used on samv71-xult.
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*/
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*/
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#if 1
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if (configid == 0)
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struct composite_devdesc_s dev[2];
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int ifnobase = 0;
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int strbase = COMPOSITE_NSTRIDS;
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/* Configure the CDC/ACM device */
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/* Ask the cdcacm driver to fill in the constants we didn't
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* know here.
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*/
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cdcacm_get_composite_devdesc(&dev[0]);
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/* Overwrite and correct some values... */
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/* The callback functions for the CDC/ACM class */
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dev[0].classobject = board_cdcclassobject;
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dev[0].uninitialize = board_cdcuninitialize;
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/* Interfaces */
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dev[0].devdesc.ifnobase = ifnobase; /* Offset to Interface-IDs */
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dev[0].minor = CONFIG_SYSTEM_COMPOSITE_TTYUSB; /* The minor interface number */
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/* Strings */
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dev[0].devdesc.strbase = strbase; /* Offset to String Numbers */
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/* Endpoints */
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dev[0].devdesc.epno[CDCACM_EP_INTIN_IDX] = 3;
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dev[0].devdesc.epno[CDCACM_EP_BULKIN_IDX] = 4;
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dev[0].devdesc.epno[CDCACM_EP_BULKOUT_IDX] = 5;
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/* Count up the base numbers */
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ifnobase += dev[0].devdesc.ninterfaces;
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strbase += dev[0].devdesc.nstrings;
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/* Configure the mass storage device device */
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/* Ask the usbmsc driver to fill in the constants we didn't
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* know here.
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*/
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usbmsc_get_composite_devdesc(&dev[1]);
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/* Overwrite and correct some values... */
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/* The callback functions for the USBMSC class */
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dev[1].classobject = board_mscclassobject;
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dev[1].uninitialize = board_mscuninitialize;
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/* Interfaces */
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dev[1].devdesc.ifnobase = ifnobase; /* Offset to Interface-IDs */
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dev[1].minor = CONFIG_SYSTEM_COMPOSITE_DEVMINOR1; /* The minor interface number */
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/* Strings */
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dev[1].devdesc.strbase = strbase; /* Offset to String Numbers */
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/* Endpoints */
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dev[1].devdesc.epno[USBMSC_EP_BULKIN_IDX] = 1;
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dev[1].devdesc.epno[USBMSC_EP_BULKOUT_IDX] = 2;
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/* Count up the base numbers */
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ifnobase += dev[1].devdesc.ninterfaces;
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strbase += dev[1].devdesc.nstrings;
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return composite_initialize(2, dev);
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#else
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/* Example with three CDC/ACMs
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*
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* This Example can be used e.g. on a samv71-xult. The samv71 has
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* 10 Endpoints (EPs). The EPs 0 up to 7 are DMA aware. The EPs 8
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* and 9 are not.
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*
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* In a composite device we need the EP0 as an control Endpoint.
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* Each CDC/ACM needs one Interrupt driven and two bulk Endpoints.
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* This is why we configure the EPs 7, 8 and 9 to be the IRQ-EPs
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* and the EP-Pairs 1/2, 3/4, 5/6 to be the bulk EPs for each
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* device.
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*
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* This means, that
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*
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* - the Composite device uses EP0 as the control-Endpoint,
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* - the CDC/ACM 0 uses EP7, EP1 and EP2,
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* - the CDC/ACM 1 uses EP8, EP3 and EP4,
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* - the CDC/ACM 2 uses EP9, EP5 and EP6
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*
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* as its EP-Configuration.
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*/
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struct composite_devdesc_struct dev[3];
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int strbase = COMPOSITE_NSTRIDS;
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int ifnobase = 0;
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int ia;
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for (ia = 0; ia < 3; ia++)
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{
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{
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/* Ask the cdcacm driver to fill in the constants we didn't know here */
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struct composite_devdesc_s dev[2];
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int ifnobase = 0;
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int strbase = COMPOSITE_NSTRIDS;
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cdcacm_get_composite_devdesc(&dev[ia]);
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/* Configure the CDC/ACM device */
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/* Ask the cdcacm driver to fill in the constants we didn't
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* know here.
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*/
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cdcacm_get_composite_devdesc(&dev[0]);
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/* Overwrite and correct some values... */
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/* Overwrite and correct some values... */
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/* The callback functions for the CDC/ACM class */
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/* The callback functions for the CDC/ACM class */
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dev[ia].classobject = cdcacm_classobject;
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dev[0].classobject = board_cdcclassobject;
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dev[ia].uninitialize = cdcacm_uninitialize;
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dev[0].uninitialize = board_cdcuninitialize;
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dev[ia].minor = ia; /* The minor interface number */
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/* Interfaces */
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/* Interfaces */
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dev[ia].devdesc.ifnobase = ifnobase; /* Offset to Interface-IDs */
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dev[0].devdesc.ifnobase = ifnobase; /* Offset to Interface-IDs */
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dev[0].minor = CONFIG_SYSTEM_COMPOSITE_TTYUSB; /* The minor interface number */
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/* Strings */
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/* Strings */
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dev[ia].devdesc.strbase = strbase; /* Offset to String Numbers */
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dev[0].devdesc.strbase = strbase; /* Offset to String Numbers */
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/* Endpoints */
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/* Endpoints */
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dev[ia].devdesc.epno[CDCACM_EP_INTIN_IDX] = 7 + ia;
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dev[0].devdesc.epno[CDCACM_EP_INTIN_IDX] = 3;
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dev[ia].devdesc.epno[CDCACM_EP_BULKIN_IDX] = 1 + ia * 2;
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dev[0].devdesc.epno[CDCACM_EP_BULKIN_IDX] = 4;
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dev[ia].devdesc.epno[CDCACM_EP_BULKOUT_IDX] = 2 + ia * 2;
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dev[0].devdesc.epno[CDCACM_EP_BULKOUT_IDX] = 5;
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ifnobase += dev[ia].devdesc.ninterfaces;
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/* Count up the base numbers */
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strbase += dev[ia].devdesc.nstrings;
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ifnobase += dev[0].devdesc.ninterfaces;
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strbase += dev[0].devdesc.nstrings;
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/* Configure the mass storage device device */
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/* Ask the usbmsc driver to fill in the constants we didn't
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* know here.
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*/
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usbmsc_get_composite_devdesc(&dev[1]);
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/* Overwrite and correct some values... */
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/* The callback functions for the USBMSC class */
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dev[1].classobject = board_mscclassobject;
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dev[1].uninitialize = board_mscuninitialize;
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/* Interfaces */
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dev[1].devdesc.ifnobase = ifnobase; /* Offset to Interface-IDs */
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dev[1].minor = CONFIG_SYSTEM_COMPOSITE_DEVMINOR1; /* The minor interface number */
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/* Strings */
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dev[1].devdesc.strbase = strbase; /* Offset to String Numbers */
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/* Endpoints */
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dev[1].devdesc.epno[USBMSC_EP_BULKIN_IDX] = 1;
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dev[1].devdesc.epno[USBMSC_EP_BULKOUT_IDX] = 2;
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/* Count up the base numbers */
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ifnobase += dev[1].devdesc.ninterfaces;
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strbase += dev[1].devdesc.nstrings;
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return composite_initialize(2, dev);
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}
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}
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return composite_initialize(3, dev);
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/* Configuration with three CDC/ACMs
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#endif
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*
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* This configuration can be used e.g. on a samv71-xult. The samv71 has
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* 10 Endpoints (EPs). The EPs 0 up to 7 are DMA aware. The EPs 8 and 9
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* are not.
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*
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* In a composite device we need the EP0 as an control Endpoint. Each
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* CDC/ACM needs one Interrupt driven and two bulk Endpoints. This is
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* why we configure the EPs 7, 8 and 9 to be the IRQ-EPs and the
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* EP-Pairs 1/2, 3/4, 5/6 to be the bulk EPs for each device.
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*
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* This means, that
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*
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* - the Composite device uses EP0 as the control-Endpoint,
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* - the CDC/ACM 0 uses EP7, EP1 and EP2,
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* - the CDC/ACM 1 uses EP8, EP3 and EP4,
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* - the CDC/ACM 2 uses EP9, EP5 and EP6
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*
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* as its EP-Configuration.
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*/
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else if (configid == 1)
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{
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struct composite_devdesc_s dev[3];
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int strbase = COMPOSITE_NSTRIDS;
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int ifnobase = 0;
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int ia;
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for (ia = 0; ia < 3; ia++)
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{
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/* Ask the cdcacm driver to fill in the constants we didn't know here */
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cdcacm_get_composite_devdesc(&dev[ia]);
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/* Overwrite and correct some values... */
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/* The callback functions for the CDC/ACM class */
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dev[ia].classobject = cdcacm_classobject;
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dev[ia].uninitialize = cdcacm_uninitialize;
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dev[ia].minor = ia; /* The minor interface number */
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/* Interfaces */
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dev[ia].devdesc.ifnobase = ifnobase; /* Offset to Interface-IDs */
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/* Strings */
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dev[ia].devdesc.strbase = strbase; /* Offset to String Numbers */
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/* Endpoints */
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dev[ia].devdesc.epno[CDCACM_EP_INTIN_IDX] = 7 + ia;
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dev[ia].devdesc.epno[CDCACM_EP_BULKIN_IDX] = 1 + ia * 2;
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dev[ia].devdesc.epno[CDCACM_EP_BULKOUT_IDX] = 2 + ia * 2;
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ifnobase += dev[ia].devdesc.ninterfaces;
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strbase += dev[ia].devdesc.nstrings;
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}
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return composite_initialize(3, dev);
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}
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else
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{
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return NULL;
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}
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}
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}
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#endif /* CONFIG_BOARDCTL_USBDEVCTRL && CONFIG_USBDEV_COMPOSITE */
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#endif /* CONFIG_BOARDCTL_USBDEVCTRL && CONFIG_USBDEV_COMPOSITE */
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