diff options
| author | Felipe Balbi <balbi@ti.com> | 2011-10-12 10:31:04 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2011-12-12 11:48:11 +0200 |
| commit | 9f622b2a407d8b34a5a7f5b4abd8b29b25cf4f32 (patch) | |
| tree | a80c6f48a8f1c4fd70d0865b027035d3f8e0d44e /drivers/usb/dwc3/core.h | |
| parent | 6c167fc9b0c23ead791edb94cf4debb6b8e534b5 (diff) | |
| download | op-kernel-dev-9f622b2a407d8b34a5a7f5b4abd8b29b25cf4f32.zip op-kernel-dev-9f622b2a407d8b34a5a7f5b4abd8b29b25cf4f32.tar.gz | |
usb: dwc3: calculate number of event buffers dynamically
This will allow us to only allocate memory when
we actually need.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc3/core.h')
| -rw-r--r-- | drivers/usb/dwc3/core.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index b7d56c3..4b6c673 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -52,7 +52,7 @@ /* Global constants */ #define DWC3_ENDPOINTS_NUM 32 -#define DWC3_EVENT_BUFFERS_NUM 2 +#define DWC3_EVENT_BUFFERS_MAX 2 #define DWC3_EVENT_BUFFERS_SIZE PAGE_SIZE #define DWC3_EVENT_TYPE_MASK 0xfe @@ -536,6 +536,8 @@ struct dwc3_hwparams { u32 hwparams8; }; +#define DWC3_NUM_INT(n) (((n) & (0x3f << 15)) >> 15) + /** * struct dwc3 - representation of our controller * @ctrl_req: usb control request which is used for ep0 @@ -555,6 +557,7 @@ struct dwc3_hwparams { * @regs: base address for our registers * @regs_size: address space size * @irq: IRQ number + * @num_event_buffers: calculated number of event buffers * @maximum_speed: maximum speed requested (mainly for testing purposes) * @revision: revision register contents * @is_selfpowered: true when we are selfpowered @@ -585,7 +588,7 @@ struct dwc3 { spinlock_t lock; struct device *dev; - struct dwc3_event_buffer *ev_buffs[DWC3_EVENT_BUFFERS_NUM]; + struct dwc3_event_buffer *ev_buffs[DWC3_EVENT_BUFFERS_MAX]; struct dwc3_ep *eps[DWC3_ENDPOINTS_NUM]; struct usb_gadget gadget; @@ -596,6 +599,7 @@ struct dwc3 { int irq; + u32 num_event_buffers; u32 maximum_speed; u32 revision; |
