// SPDX-License-Identifier: GPL-2.0-or-later /* * Actions Semi Owl SoCs Ethernet MAC driver * * Copyright (c) 2012 Actions Semi Inc. * Copyright (c) 2021 Cristian Ciocaltea <[email protected]> */ #include <linux/circ_buf.h> #include <linux/clk.h> #include <linux/dma-mapping.h> #include <linux/etherdevice.h> #include <linux/of_mdio.h> #include <linux/of_net.h> #include <linux/platform_device.h> #include <linux/pm.h> #include <linux/reset.h> #include "owl-emac.h" #define OWL_EMAC_DEFAULT_MSG_ENABLE … static u32 owl_emac_reg_read(struct owl_emac_priv *priv, u32 reg) { … } static void owl_emac_reg_write(struct owl_emac_priv *priv, u32 reg, u32 data) { … } static u32 owl_emac_reg_update(struct owl_emac_priv *priv, u32 reg, u32 mask, u32 val) { … } static void owl_emac_reg_set(struct owl_emac_priv *priv, u32 reg, u32 bits) { … } static void owl_emac_reg_clear(struct owl_emac_priv *priv, u32 reg, u32 bits) { … } static struct device *owl_emac_get_dev(struct owl_emac_priv *priv) { … } static void owl_emac_irq_enable(struct owl_emac_priv *priv) { … } static void owl_emac_irq_disable(struct owl_emac_priv *priv) { … } static u32 owl_emac_irq_status(struct owl_emac_priv *priv) { … } static u32 owl_emac_irq_clear(struct owl_emac_priv *priv) { … } static dma_addr_t owl_emac_dma_map_rx(struct owl_emac_priv *priv, struct sk_buff *skb) { … } static void owl_emac_dma_unmap_rx(struct owl_emac_priv *priv, struct sk_buff *skb, dma_addr_t dma_addr) { … } static dma_addr_t owl_emac_dma_map_tx(struct owl_emac_priv *priv, struct sk_buff *skb) { … } static void owl_emac_dma_unmap_tx(struct owl_emac_priv *priv, struct sk_buff *skb, dma_addr_t dma_addr) { … } static unsigned int owl_emac_ring_num_unused(struct owl_emac_ring *ring) { … } static unsigned int owl_emac_ring_get_next(struct owl_emac_ring *ring, unsigned int cur) { … } static void owl_emac_ring_push_head(struct owl_emac_ring *ring) { … } static void owl_emac_ring_pop_tail(struct owl_emac_ring *ring) { … } static struct sk_buff *owl_emac_alloc_skb(struct net_device *netdev) { … } static int owl_emac_ring_prepare_rx(struct owl_emac_priv *priv) { … } static void owl_emac_ring_prepare_tx(struct owl_emac_priv *priv) { … } static void owl_emac_ring_unprepare_rx(struct owl_emac_priv *priv) { … } static void owl_emac_ring_unprepare_tx(struct owl_emac_priv *priv) { … } static int owl_emac_ring_alloc(struct device *dev, struct owl_emac_ring *ring, unsigned int size) { … } static void owl_emac_dma_cmd_resume_rx(struct owl_emac_priv *priv) { … } static void owl_emac_dma_cmd_resume_tx(struct owl_emac_priv *priv) { … } static u32 owl_emac_dma_cmd_set_tx(struct owl_emac_priv *priv, u32 status) { … } static u32 owl_emac_dma_cmd_start_tx(struct owl_emac_priv *priv) { … } static u32 owl_emac_dma_cmd_set(struct owl_emac_priv *priv, u32 status) { … } static u32 owl_emac_dma_cmd_start(struct owl_emac_priv *priv) { … } static u32 owl_emac_dma_cmd_stop(struct owl_emac_priv *priv) { … } static void owl_emac_set_hw_mac_addr(struct net_device *netdev) { … } static void owl_emac_update_link_state(struct owl_emac_priv *priv) { … } static void owl_emac_adjust_link(struct net_device *netdev) { … } static irqreturn_t owl_emac_handle_irq(int irq, void *data) { … } static void owl_emac_ether_addr_push(u8 **dst, const u8 *src) { … } static void owl_emac_setup_frame_prepare(struct owl_emac_priv *priv, struct sk_buff *skb) { … } /* The setup frame is a special descriptor which is used to provide physical * addresses (i.e. mac, broadcast and multicast) to the MAC hardware for * filtering purposes. To be recognized as a setup frame, the TDES1_SET bit * must be set in the TX descriptor control field. */ static int owl_emac_setup_frame_xmit(struct owl_emac_priv *priv) { … } static netdev_tx_t owl_emac_ndo_start_xmit(struct sk_buff *skb, struct net_device *netdev) { … } static bool owl_emac_tx_complete_tail(struct owl_emac_priv *priv) { … } static void owl_emac_tx_complete(struct owl_emac_priv *priv) { … } static int owl_emac_rx_process(struct owl_emac_priv *priv, int budget) { … } static int owl_emac_poll(struct napi_struct *napi, int budget) { … } static void owl_emac_mdio_clock_enable(struct owl_emac_priv *priv) { … } static void owl_emac_core_hw_reset(struct owl_emac_priv *priv) { … } static int owl_emac_core_sw_reset(struct owl_emac_priv *priv) { … } static int owl_emac_enable(struct net_device *netdev, bool start_phy) { … } static void owl_emac_disable(struct net_device *netdev, bool stop_phy) { … } static int owl_emac_ndo_open(struct net_device *netdev) { … } static int owl_emac_ndo_stop(struct net_device *netdev) { … } static void owl_emac_set_multicast(struct net_device *netdev, int count) { … } static void owl_emac_ndo_set_rx_mode(struct net_device *netdev) { … } static int owl_emac_ndo_set_mac_addr(struct net_device *netdev, void *addr) { … } static int owl_emac_ndo_eth_ioctl(struct net_device *netdev, struct ifreq *req, int cmd) { … } static void owl_emac_ndo_tx_timeout(struct net_device *netdev, unsigned int txqueue) { … } static void owl_emac_reset_task(struct work_struct *work) { … } static struct net_device_stats * owl_emac_ndo_get_stats(struct net_device *netdev) { … } static const struct net_device_ops owl_emac_netdev_ops = …; static void owl_emac_ethtool_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { … } static u32 owl_emac_ethtool_get_msglevel(struct net_device *netdev) { … } static void owl_emac_ethtool_set_msglevel(struct net_device *ndev, u32 val) { … } static const struct ethtool_ops owl_emac_ethtool_ops = …; static int owl_emac_mdio_wait(struct owl_emac_priv *priv) { … } static int owl_emac_mdio_read(struct mii_bus *bus, int addr, int regnum) { … } static int owl_emac_mdio_write(struct mii_bus *bus, int addr, int regnum, u16 val) { … } static int owl_emac_mdio_init(struct net_device *netdev) { … } static int owl_emac_phy_init(struct net_device *netdev) { … } static void owl_emac_get_mac_addr(struct net_device *netdev) { … } static __maybe_unused int owl_emac_suspend(struct device *dev) { … } static __maybe_unused int owl_emac_resume(struct device *dev) { … } static void owl_emac_clk_disable_unprepare(void *data) { … } static int owl_emac_clk_set_rate(struct owl_emac_priv *priv) { … } static int owl_emac_probe(struct platform_device *pdev) { … } static void owl_emac_remove(struct platform_device *pdev) { … } static const struct of_device_id owl_emac_of_match[] = …; MODULE_DEVICE_TABLE(of, owl_emac_of_match); static SIMPLE_DEV_PM_OPS(owl_emac_pm_ops, owl_emac_suspend, owl_emac_resume); static struct platform_driver owl_emac_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
Codebase Browser
linux