diff options
| author | Felipe Balbi <balbi@ti.com> | 2011-05-05 15:53:10 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2013-03-18 11:18:02 +0200 |
| commit | 789451f6c698282d0745f265bde47173c9372867 (patch) | |
| tree | 6ce8ccfe373fee12134fb3c97c1e93d8400ef802 | |
| parent | 5f71791947fcb1942df7d0df45520d420c2aee2b (diff) | |
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>
| -rw-r--r-- | drivers/usb/dwc3/core.c | 13 | ||||
| -rw-r--r-- | drivers/usb/dwc3/core.h | 15 |
2 files changed, 28 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index c6a46e0efe4..66c05725daf 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -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; diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index ad2ffac7150..b42f71cb87d 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -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; |