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usb: driver: Reduce Endpoint buffer pool.

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IN Endpoints does not require to have initialized internal
buffer. The data send are not copied to the internal buffer
anymore. This patch reduces memory usage for IN Endpoints.

Signed-off-by: Emil Obalski <emil.obalski@nordicsemi.no>
This commit is contained in:
Emil Obalski 2020-10-20 12:56:37 +02:00 committed by Carles Cufí
parent 8dacb99e5e
commit b3c63425a0
1 changed files with 1 additions and 22 deletions
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23
drivers/usb/device/usb_dc_nrfx.c
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@ -219,9 +219,7 @@ K_MEM_POOL_DEFINE(fifo_elem_pool, FIFO_ELEM_MIN_SZ, FIFO_ELEM_MAX_SZ,
CFG_EPOUT_CNT + CFG_EP_ISOOUT_CNT)
/** Total buffer size for all endpoints */
#define EP_BUF_TOTAL ((CFG_EPIN_CNT * EP_BUF_MAX_SZ) + \
(CFG_EPOUT_CNT * EP_BUF_MAX_SZ) + \
(CFG_EP_ISOIN_CNT * ISO_EP_BUF_MAX_SZ) + \
#define EP_BUF_TOTAL ((CFG_EPOUT_CNT * EP_BUF_MAX_SZ) + \
(CFG_EP_ISOOUT_CNT * ISO_EP_BUF_MAX_SZ))
/** Total number of maximum sized buffers needed */
@ -631,15 +629,6 @@ static int eps_ctx_init(void)
ep_ctx = in_endpoint_ctx(i);
__ASSERT_NO_MSG(ep_ctx);
if (!ep_ctx->buf.block.data) {
err = k_mem_pool_alloc(&ep_buf_pool, &ep_ctx->buf.block,
EP_BUF_MAX_SZ, K_NO_WAIT);
if (err < 0) {
LOG_ERR("Buffer alloc failed for EP 0x%02x", i);
return -ENOMEM;
}
}
ep_ctx_reset(ep_ctx);
}
@ -663,16 +652,6 @@ static int eps_ctx_init(void)
ep_ctx = in_endpoint_ctx(NRF_USBD_EPIN(8));
__ASSERT_NO_MSG(ep_ctx);
if (!ep_ctx->buf.block.data) {
err = k_mem_pool_alloc(&ep_buf_pool, &ep_ctx->buf.block,
ISO_EP_BUF_MAX_SZ,
K_NO_WAIT);
if (err < 0) {
LOG_ERR("EP buffer alloc failed for ISOIN");
return -ENOMEM;
}
}
ep_ctx_reset(ep_ctx);
}