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dm: usb: Allow ECHI to hold private data for the controller

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Add a private data pointer that clients of EHCI can use to access their
private information. This establishes a link between struct ehci_ctrl and
its associated controller data structure.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Simon Glass 2015-03-25 12:22:19 -06:00
parent 7338287d58
commit c4a3141d55
2 changed files with 31 additions and 0 deletions
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10
drivers/usb/host/ehci-hcd.c
View File

@ -930,6 +930,16 @@ unknown:
return -1;
}
void ehci_set_controller_priv(int index, void *priv)
{
ehcic[index].priv = priv;
}
void *ehci_get_controller_priv(int index)
{
return ehcic[index].priv;
}
int usb_lowlevel_stop(int index)
{
ehci_shutdown(&ehcic[index]);

21
drivers/usb/host/ehci.h
View File

@ -248,6 +248,7 @@ struct ehci_ctrl {
uint32_t *periodic_list;
int periodic_schedules;
int ntds;
void *priv; /* client's private data */
};
/* Weak functions that drivers can override */
@ -256,6 +257,26 @@ void ehci_set_usbmode(int index);
void ehci_powerup_fixup(uint32_t *status_reg, uint32_t *reg);
uint32_t *ehci_get_portsc_register(struct ehci_hcor *hcor, int port);
/**
* ehci_set_controller_priv() - Set up private data for the controller
*
* This function can be called in ehci_hcd_init() to tell the EHCI layer
* about the controller's private data pointer. Then in the above functions
* this can be accessed given the struct ehci_ctrl pointer.
*
* @index: Controller number to set
* @priv: Controller pointer
*/
void ehci_set_controller_priv(int index, void *priv);
/**
* ehci_get_controller_priv() - Get controller private data
*
* @index Controller number to get
* @return controller pointer for this index
*/
void *ehci_get_controller_priv(int index);
/* Low level init functions */
int ehci_hcd_init(int index, enum usb_init_type init,
struct ehci_hccr **hccr, struct ehci_hcor **hcor);