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drivers: usb: nxp: Add cache management

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Clean/Invalidate cache before/after usb TX/RX transfers.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
This commit is contained in:
Loic Poulain 2019-06-11 17:54:01 +02:00 • committed by Anas Nashif
commit 4fe7f69182
1 changed files with 15 additions and 0 deletions
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15
drivers/usb/device/usb_dc_mcux_ehci.c
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@ -12,6 +12,10 @@
#include "usb_dc_mcux.h"
#include "usb_device_ehci.h"
#ifdef CONFIG_HAS_MCUX_CACHE
#include <fsl_cache.h>
#endif
#define LOG_LEVEL CONFIG_USB_DRIVER_LOG_LEVEL
#include <logging/log.h>
LOG_MODULE_REGISTER(usb_dc_mcux_ehci);
@ -34,6 +38,7 @@ extern void USB_DeviceEhciIsrFunction(void *deviceHandle);
#define EP_BUF_NUMOF_BLOCKS ((NUM_OF_EP_MAX + 3) / 4)
/* The max MPS is 1023 for FS, 1024 for HS. */
#if defined(CONFIG_NOCACHE_MEMORY)
#define EP_BUF_NONCACHED
__nocache K_MEM_POOL_DEFINE(ep_buf_pool, 16, 1024, EP_BUF_NUMOF_BLOCKS, 4);
#else
K_MEM_POOL_DEFINE(ep_buf_pool, 16, 1024, EP_BUF_NUMOF_BLOCKS, 4);
@ -285,6 +290,10 @@ int usb_dc_ep_write(const u8_t ep, const u8_t *const data,
for (u32_t n = 0; n < len_to_send; n++) {
buffer[n] = data[n];
}
#if defined(CONFIG_HAS_MCUX_CACHE) && !defined(EP_BUF_NONCACHED)
DCACHE_CleanByRange((uint32_t)buffer, len_to_send);
#endif
s_Device.interface->deviceSend(s_Device.controllerHandle,
ep,
buffer,
@ -523,6 +532,12 @@ void USB_DeviceNotificationTrigger(void *handle, void *msg)
}
}
if (s_Device.eps[ep_abs_idx].callback) {
#if defined(CONFIG_HAS_MCUX_CACHE) && !defined(EP_BUF_NONCACHED)
if (message->length) {
DCACHE_InvalidateByRange((uint32_t)message->buffer,
message->length);
}
#endif
s_Device.eps[ep_abs_idx].callback(message->code,
ep_packet_type);
}