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Diffstat (limited to 'platform/stm32f7xx/eth.c')
| -rw-r--r-- | platform/stm32f7xx/eth.c | 367 |
1 files changed, 0 insertions, 367 deletions
diff --git a/platform/stm32f7xx/eth.c b/platform/stm32f7xx/eth.c deleted file mode 100644 index 22437636..00000000 --- a/platform/stm32f7xx/eth.c +++ /dev/null @@ -1,367 +0,0 @@ -/* - * Copyright (c) 2015 Travis Geiselbrecht - * - * Permission is hereby granted, free of charge, to any person obtaining - * a copy of this software and associated documentation files - * (the "Software"), to deal in the Software without restriction, - * including without limitation the rights to use, copy, modify, merge, - * publish, distribute, sublicense, and/or sell copies of the Software, - * and to permit persons to whom the Software is furnished to do so, - * subject to the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. - * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY - * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ -/* - * COPYRIGHT(c) 2015 STMicroelectronics - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. Neither the name of STMicroelectronics nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************** - */ - -#include <err.h> -#include <debug.h> -#include <assert.h> -#include <trace.h> -#include <target.h> -#include <compiler.h> -#include <stdlib.h> -#include <string.h> -#include <lib/gfx.h> -#include <dev/gpio.h> -#include <dev/display.h> -#include <kernel/event.h> -#include <kernel/thread.h> -#include <arch/ops.h> -#include <arch/arm/cm.h> -#include <platform.h> -#include <platform/stm32.h> -#include <platform/eth.h> - -#if WITH_LIB_MINIP -#include <lib/minip.h> -#include <lib/pktbuf.h> -#endif - -#define LOCAL_TRACE 0 - -/* LAN8742A PHY Address*/ -#define LAN8742A_PHY_ADDRESS 0x00 -/* DP83848 PHY Address*/ -#define DP83848_PHY_ADDRESS 0x01 -/* KSZ8721 PHY Address*/ -#define KSZ8721_PHY_ADDRESS 0x01 - -struct eth_status { - ETH_HandleTypeDef EthHandle; - - eth_phy_itf eth_phy; - event_t rx_event; - - /* allocated directly out of DTCM below */ - ETH_DMADescTypeDef *DMARxDscrTab; // ETH_RXBUFNB - ETH_DMADescTypeDef *DMATxDscrTab; // ETH_TXBUFNB - uint8_t *Rx_Buff; // ETH_RXBUFNB * ETH_RX_BUF_SIZE - uint8_t *Tx_Buff; // ETH_TXBUFNB * ETH_TX_BUF_SIZE -}; - -static struct eth_status eth; - -static int eth_rx_worker(void *arg); - -#if WITH_LIB_MINIP -static int eth_send_raw_pkt(pktbuf_t *p); -#endif - -status_t eth_init(const uint8_t *mac_addr, eth_phy_itf eth_phy) -{ - LTRACE_ENTRY; - - DEBUG_ASSERT(mac_addr); - - eth.eth_phy = eth_phy; - - /* Enable ETHERNET clock */ - __HAL_RCC_ETH_CLK_ENABLE(); - - eth.EthHandle.Instance = ETH; - eth.EthHandle.Init.MACAddr = (uint8_t *)mac_addr; - eth.EthHandle.Init.AutoNegotiation = ETH_AUTONEGOTIATION_ENABLE; - eth.EthHandle.Init.Speed = ETH_SPEED_100M; - eth.EthHandle.Init.DuplexMode = ETH_MODE_FULLDUPLEX; - switch (eth_phy) { - case PHY_DP83848: - eth.EthHandle.Init.MediaInterface = ETH_MEDIA_INTERFACE_MII; - eth.EthHandle.Init.PhyAddress = DP83848_PHY_ADDRESS; - break; - case PHY_LAN8742A: - eth.EthHandle.Init.MediaInterface = ETH_MEDIA_INTERFACE_RMII; - eth.EthHandle.Init.PhyAddress = LAN8742A_PHY_ADDRESS; - break; - case PHY_KSZ8721: - eth.EthHandle.Init.MediaInterface = ETH_MEDIA_INTERFACE_RMII; - eth.EthHandle.Init.PhyAddress = KSZ8721_PHY_ADDRESS; - break; - default: - return ERR_NOT_CONFIGURED; - } - - eth.EthHandle.Init.RxMode = ETH_RXINTERRUPT_MODE; - //eth.EthHandle.Init.ChecksumMode = ETH_CHECKSUM_BY_HARDWARE; // XXX icmp checksums corrupted if stack stuff valid checksum - eth.EthHandle.Init.ChecksumMode = ETH_CHECKSUM_BY_SOFTWARE; - - /* configure ethernet peripheral (GPIOs, clocks, MAC, DMA) */ - if (HAL_ETH_Init(ð.EthHandle) != HAL_OK) - return ERR_NOT_CONFIGURED; - - /* allocate descriptor and buffer memory from DTCM */ - /* XXX do in a more generic way */ -#if MEMBASE == 0x20000000 -#error DTCM will collide with MEMBASE -#endif - addr_t tcm_ptr = RAMDTCM_BASE; - - eth.DMATxDscrTab = (void *)tcm_ptr; - tcm_ptr += sizeof(*eth.DMATxDscrTab) * ETH_TXBUFNB; - eth.DMARxDscrTab = (void *)tcm_ptr; - tcm_ptr += sizeof(*eth.DMARxDscrTab) * ETH_RXBUFNB; - - eth.Tx_Buff = (void *)tcm_ptr; - tcm_ptr += ETH_TX_BUF_SIZE * ETH_TXBUFNB; - eth.Rx_Buff = (void *)tcm_ptr; - tcm_ptr += ETH_RX_BUF_SIZE * ETH_RXBUFNB; - - /* Initialize Tx Descriptors list: Chain Mode */ - HAL_ETH_DMATxDescListInit(ð.EthHandle, eth.DMATxDscrTab, eth.Tx_Buff, ETH_TXBUFNB); - - /* Initialize Rx Descriptors list: Chain Mode */ - HAL_ETH_DMARxDescListInit(ð.EthHandle, eth.DMARxDscrTab, eth.Rx_Buff, ETH_RXBUFNB); - - /* Enable MAC and DMA transmission and reception */ - HAL_ETH_Start(ð.EthHandle); - -#if 0 - // XXX DP83848 specific - /**** Configure PHY to generate an interrupt when Eth Link state changes ****/ - /* Read Register Configuration */ - uint32_t regvalue; - HAL_ETH_ReadPHYRegister(ð.EthHandle, PHY_MICR, ®value); - - regvalue |= (PHY_MICR_INT_EN | PHY_MICR_INT_OE); - - /* Enable Interrupts */ - HAL_ETH_WritePHYRegister(ð.EthHandle, PHY_MICR, regvalue ); - - /* Read Register Configuration */ - HAL_ETH_ReadPHYRegister(ð.EthHandle, PHY_MISR, ®value); - - regvalue |= PHY_MISR_LINK_INT_EN; - - /* Enable Interrupt on change of link status */ - HAL_ETH_WritePHYRegister(ð.EthHandle, PHY_MISR, regvalue); -#endif - - /* set up an event to block the rx thread on */ - event_init(ð.rx_event, false, EVENT_FLAG_AUTOUNSIGNAL); - - /* start worker thread */ - thread_resume(thread_create("eth_rx", ð_rx_worker, NULL, HIGH_PRIORITY, DEFAULT_STACK_SIZE)); - - /* enable interrupts */ - HAL_NVIC_EnableIRQ(ETH_IRQn); - - LTRACE_EXIT; - - return NO_ERROR; -} - -void stm32_ETH_IRQ(void) -{ - arm_cm_irq_entry(); - - HAL_ETH_IRQHandler(ð.EthHandle); - - arm_cm_irq_exit(true); -} - -/** - * @brief Ethernet Rx Transfer completed callback - * @param heth: ETH handle - * @retval None - */ -void HAL_ETH_RxCpltCallback(ETH_HandleTypeDef *heth) -{ - event_signal(ð.rx_event, false); -} - -static status_t eth_send(const void *buf, size_t len) -{ - status_t err; - __IO ETH_DMADescTypeDef *DmaTxDesc; - - LTRACEF("buf %p, len %zu\n", buf, len); - - DmaTxDesc = eth.EthHandle.TxDesc; - - /* is the buffer available? */ - if ((DmaTxDesc->Status & ETH_DMATXDESC_OWN) != 0) { - LTRACEF("tx buffer not available\n"); - err = ERR_IO; - goto error; - } - - uint8_t *buffer = (uint8_t *)(DmaTxDesc->Buffer1Addr); - memcpy(buffer, buf, len); - - HAL_StatusTypeDef e = HAL_ETH_TransmitFrame(ð.EthHandle, len); - - err = (e == HAL_OK) ? NO_ERROR : ERR_IO; - -error: - /* When Transmit Underflow flag is set, clear it and issue a Transmit Poll Demand to resume transmission */ - if ((eth.EthHandle.Instance->DMASR & ETH_DMASR_TUS) != 0) { - /* Clear TUS ETHERNET DMA flag */ - eth.EthHandle.Instance->DMASR = ETH_DMASR_TUS; - - /* Resume DMA transmission*/ - eth.EthHandle.Instance->DMATPDR = 0; - } - - return err; -} - -static int eth_rx_worker(void *arg) -{ - for (;;) { -#if 0 - status_t event_err = event_wait_timeout(ð.rx_event, 1000); - if (event_err == ERR_TIMED_OUT) { - /* periodically poll the phys status register */ - /* XXX specific to DP83848 */ - uint32_t val; - - /* Read PHY_MISR */ - /* seems to take about 30 usecs */ - HAL_ETH_ReadPHYRegister(ð.EthHandle, PHY_MISR, &val); - - /* Check whether the link interrupt has occurred or not */ - if (val & PHY_LINK_INTERRUPT) { - /* Read PHY_SR*/ - HAL_ETH_ReadPHYRegister(ð.EthHandle, PHY_SR, &val); - - /* Check whether the link is up or down*/ - if (val & PHY_LINK_STATUS) { - printf("eth: link up\n"); - //netif_set_link_up(link_arg->netif); - } else { - printf("eth: link down\n"); - //netif_set_link_down(link_arg->netif); - } - } - } else { -#else - status_t event_err = event_wait(ð.rx_event); - if (event_err >= NO_ERROR) { -#endif - // XXX probably race with the event here - while (HAL_ETH_GetReceivedFrame_IT(ð.EthHandle) == HAL_OK) { - LTRACEF("got packet len %u, buffer %p, seg count %u\n", eth.EthHandle.RxFrameInfos.length, - (void *)eth.EthHandle.RxFrameInfos.buffer, - eth.EthHandle.RxFrameInfos.SegCount); - -#if WITH_LIB_MINIP - /* allocate a pktbuf header, point it at our rx buffer, and pass up the stack */ - pktbuf_t *p = pktbuf_alloc_empty(); - if (p) { - pktbuf_add_buffer(p, (void *)eth.EthHandle.RxFrameInfos.buffer, eth.EthHandle.RxFrameInfos.length, - 0, 0, NULL, NULL); - p->dlen = eth.EthHandle.RxFrameInfos.length; - - minip_rx_driver_callback(p); - - pktbuf_free(p, true); - } -#endif - - /* Release descriptors to DMA */ - /* Point to first descriptor */ - __IO ETH_DMADescTypeDef *dmarxdesc; - - dmarxdesc = eth.EthHandle.RxFrameInfos.FSRxDesc; - /* Set Own bit in Rx descriptors: gives the buffers back to DMA */ - for (uint i=0; i< eth.EthHandle.RxFrameInfos.SegCount; i++) { - dmarxdesc->Status |= ETH_DMARXDESC_OWN; - dmarxdesc = (ETH_DMADescTypeDef *)(dmarxdesc->Buffer2NextDescAddr); - } - - /* Clear Segment_Count */ - eth.EthHandle.RxFrameInfos.SegCount =0; - - /* When Rx Buffer unavailable flag is set: clear it and resume reception */ - if ((eth.EthHandle.Instance->DMASR & ETH_DMASR_RBUS) != (uint32_t)RESET) { - /* Clear RBUS ETHERNET DMA flag */ - eth.EthHandle.Instance->DMASR = ETH_DMASR_RBUS; - /* Resume DMA reception */ - eth.EthHandle.Instance->DMARPDR = 0; - } - } - } - } - - return 0; -} - -#if WITH_LIB_MINIP - -status_t stm32_eth_send_minip_pkt(pktbuf_t *p) -{ - LTRACEF("p %p, dlen %zu, eof %u\n", p, p->dlen, p->flags & PKTBUF_FLAG_EOF); - - DEBUG_ASSERT(p && p->dlen); - - if (!(p->flags & PKTBUF_FLAG_EOF)) { - /* can't handle multi part packets yet */ - PANIC_UNIMPLEMENTED; - - return ERR_NOT_IMPLEMENTED; - } - - status_t err = eth_send(p->data, p->dlen); - - pktbuf_free(p, true); - - return err; -} - -#endif - - |