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OpenCloudOS-Kernel
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usb: dwc3: calculate the number of endpoints 

hwparams2 holds the number of endpoints which
were selected during RTL generation, we can
use that on our driver.

Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe Balbi 2011-05-05 15:53:10 +03:00
parent 5f71791947
commit 789451f6c6
2 changed files with 28 additions and 0 deletions
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13
drivers/usb/dwc3/core.c
View File

@ -260,6 +260,17 @@ static void dwc3_event_buffers_cleanup(struct dwc3 *dwc)
}
}
static void dwc3_core_num_eps(struct dwc3 *dwc)
{
struct dwc3_hwparams *parms = &dwc->hwparams;
dwc->num_in_eps = DWC3_NUM_IN_EPS(parms);
dwc->num_out_eps = DWC3_NUM_EPS(parms) - dwc->num_in_eps;
dev_vdbg(dwc->dev, "found %d IN and %d OUT endpoints\n",
dwc->num_in_eps, dwc->num_out_eps);
}
static void dwc3_cache_hwparams(struct dwc3 *dwc)
{
struct dwc3_hwparams *parms = &dwc->hwparams;
@ -336,6 +347,8 @@ static int dwc3_core_init(struct dwc3 *dwc)
if (dwc->revision < DWC3_REVISION_190A)
reg |= DWC3_GCTL_U2RSTECN;
dwc3_core_num_eps(dwc);
dwc3_writel(dwc->regs, DWC3_GCTL, reg);
return 0;

15
drivers/usb/dwc3/core.h
View File

@ -575,6 +575,14 @@ struct dwc3_hwparams {
/* HWPARAMS1 */
#define DWC3_NUM_INT(n) (((n) & (0x3f << 15)) >> 15)
/* HWPARAMS3 */
#define DWC3_NUM_IN_EPS_MASK (0x1f << 18)
#define DWC3_NUM_EPS_MASK (0x3f << 12)
#define DWC3_NUM_EPS(p) (((p)->hwparams3 & \
(DWC3_NUM_EPS_MASK)) >> 12)
#define DWC3_NUM_IN_EPS(p) (((p)->hwparams3 & \
(DWC3_NUM_IN_EPS_MASK)) >> 18)
/* HWPARAMS7 */
#define DWC3_RAM1_DEPTH(n) ((n) & 0xffff)
@ -641,6 +649,8 @@ struct dwc3_scratchpad_array {
* @u2pel: parameter from Set SEL request.
* @u1sel: parameter from Set SEL request.
* @u1pel: parameter from Set SEL request.
* @num_out_eps: number of out endpoints
* @num_in_eps: number of in endpoints
* @ep0_next_event: hold the next expected event
* @ep0state: state of endpoint zero
* @link_state: link state
@ -658,8 +668,10 @@ struct dwc3 {
dma_addr_t ep0_trb_addr;
dma_addr_t ep0_bounce_addr;
struct dwc3_request ep0_usb_req;
/* device lock */
spinlock_t lock;
struct device *dev;
struct platform_device *xhci;
@ -727,6 +739,9 @@ struct dwc3 {
u8 speed;
u8 num_out_eps;
u8 num_in_eps;
void *mem;
struct dwc3_hwparams hwparams;