diff options
Diffstat (limited to 'target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h')
| -rw-r--r-- | target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h | 508 |
1 files changed, 0 insertions, 508 deletions
diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h deleted file mode 100644 index 2d9a865043..0000000000 --- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h +++ /dev/null @@ -1,508 +0,0 @@ -/* - * Atheros AR71xx built-in ethernet mac driver - * - * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> - * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> - * - * Based on Atheros' AG7100 driver - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#ifndef __AG71XX_H -#define __AG71XX_H - -#include <linux/kernel.h> -#include <linux/version.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/types.h> -#include <linux/random.h> -#include <linux/spinlock.h> -#include <linux/interrupt.h> -#include <linux/platform_device.h> -#include <linux/ethtool.h> -#include <linux/etherdevice.h> -#include <linux/if_vlan.h> -#include <linux/phy.h> -#include <linux/skbuff.h> -#include <linux/dma-mapping.h> -#include <linux/workqueue.h> - -#include <linux/bitops.h> - -#include <asm/mach-ath79/ar71xx_regs.h> -#include <asm/mach-ath79/ath79.h> -#include <asm/mach-ath79/ag71xx_platform.h> - -#define AG71XX_DRV_NAME "ag71xx" -#define AG71XX_DRV_VERSION "0.5.35" - -/* - * For our NAPI weight bigger does *NOT* mean better - it means more - * D-cache misses and lots more wasted cycles than we'll ever - * possibly gain from saving instructions. - */ -#define AG71XX_NAPI_WEIGHT 32 -#define AG71XX_OOM_REFILL (1 + HZ/10) - -#define AG71XX_INT_ERR (AG71XX_INT_RX_BE | AG71XX_INT_TX_BE) -#define AG71XX_INT_TX (AG71XX_INT_TX_PS) -#define AG71XX_INT_RX (AG71XX_INT_RX_PR | AG71XX_INT_RX_OF) - -#define AG71XX_INT_POLL (AG71XX_INT_RX | AG71XX_INT_TX) -#define AG71XX_INT_INIT (AG71XX_INT_ERR | AG71XX_INT_POLL) - -#define AG71XX_TX_MTU_LEN 1540 - -#define AG71XX_TX_RING_SPLIT 512 -#define AG71XX_TX_RING_DS_PER_PKT DIV_ROUND_UP(AG71XX_TX_MTU_LEN, \ - AG71XX_TX_RING_SPLIT) -#define AG71XX_TX_RING_SIZE_DEFAULT 128 -#define AG71XX_RX_RING_SIZE_DEFAULT 256 - -#define AG71XX_TX_RING_SIZE_MAX 128 -#define AG71XX_RX_RING_SIZE_MAX 256 - -#define QCA955X_SGMII_LINK_WAR_MAX_TRY 10 - -#ifdef CONFIG_AG71XX_DEBUG -#define DBG(fmt, args...) pr_debug(fmt, ## args) -#else -#define DBG(fmt, args...) do {} while (0) -#endif - -#define ag71xx_assert(_cond) \ -do { \ - if (_cond) \ - break; \ - printk("%s,%d: assertion failed\n", __FILE__, __LINE__); \ - BUG(); \ -} while (0) - -struct ag71xx_desc { - u32 data; - u32 ctrl; -#define DESC_EMPTY BIT(31) -#define DESC_MORE BIT(24) -#define DESC_PKTLEN_M 0xfff - u32 next; - u32 pad; -} __attribute__((aligned(4))); - -#define AG71XX_DESC_SIZE roundup(sizeof(struct ag71xx_desc), \ - L1_CACHE_BYTES) - -struct ag71xx_buf { - union { - struct sk_buff *skb; - void *rx_buf; - }; - union { - dma_addr_t dma_addr; - unsigned int len; - }; -}; - -struct ag71xx_ring { - struct ag71xx_buf *buf; - u8 *descs_cpu; - dma_addr_t descs_dma; - u16 desc_split; - u16 order; - unsigned int curr; - unsigned int dirty; -}; - -struct ag71xx_mdio { - struct mii_bus *mii_bus; -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) - int mii_irq[PHY_MAX_ADDR]; -#endif - void __iomem *mdio_base; - struct ag71xx_mdio_platform_data *pdata; -}; - -struct ag71xx_int_stats { - unsigned long rx_pr; - unsigned long rx_be; - unsigned long rx_of; - unsigned long tx_ps; - unsigned long tx_be; - unsigned long tx_ur; - unsigned long total; -}; - -struct ag71xx_napi_stats { - unsigned long napi_calls; - unsigned long rx_count; - unsigned long rx_packets; - unsigned long rx_packets_max; - unsigned long tx_count; - unsigned long tx_packets; - unsigned long tx_packets_max; - - unsigned long rx[AG71XX_NAPI_WEIGHT + 1]; - unsigned long tx[AG71XX_NAPI_WEIGHT + 1]; -}; - -struct ag71xx_debug { - struct dentry *debugfs_dir; - - struct ag71xx_int_stats int_stats; - struct ag71xx_napi_stats napi_stats; -}; - -struct ag71xx { - /* - * Critical data related to the per-packet data path are clustered - * early in this structure to help improve the D-cache footprint. - */ - struct ag71xx_ring rx_ring ____cacheline_aligned; - struct ag71xx_ring tx_ring ____cacheline_aligned; - - unsigned int max_frame_len; - unsigned int desc_pktlen_mask; - unsigned int rx_buf_size; - - struct net_device *dev; - struct platform_device *pdev; - spinlock_t lock; - struct napi_struct napi; - u32 msg_enable; - - /* - * From this point onwards we're not looking at per-packet fields. - */ - void __iomem *mac_base; - - struct ag71xx_desc *stop_desc; - dma_addr_t stop_desc_dma; - - struct mii_bus *mii_bus; - struct phy_device *phy_dev; - void *phy_priv; - - unsigned int link; - unsigned int speed; - int duplex; - - struct delayed_work restart_work; - struct delayed_work link_work; - struct timer_list oom_timer; - -#ifdef CONFIG_AG71XX_DEBUG_FS - struct ag71xx_debug debug; -#endif -}; - -extern struct ethtool_ops ag71xx_ethtool_ops; -void ag71xx_link_adjust(struct ag71xx *ag); - -int ag71xx_mdio_driver_init(void) __init; -void ag71xx_mdio_driver_exit(void); - -int ag71xx_phy_connect(struct ag71xx *ag); -void ag71xx_phy_disconnect(struct ag71xx *ag); -void ag71xx_phy_start(struct ag71xx *ag); -void ag71xx_phy_stop(struct ag71xx *ag); - -static inline struct ag71xx_platform_data *ag71xx_get_pdata(struct ag71xx *ag) -{ - return ag->pdev->dev.platform_data; -} - -static inline int ag71xx_desc_empty(struct ag71xx_desc *desc) -{ - return (desc->ctrl & DESC_EMPTY) != 0; -} - -static inline struct ag71xx_desc * -ag71xx_ring_desc(struct ag71xx_ring *ring, int idx) -{ - return (struct ag71xx_desc *) &ring->descs_cpu[idx * AG71XX_DESC_SIZE]; -} - -static inline int -ag71xx_ring_size_order(int size) -{ - return fls(size - 1); -} - -/* Register offsets */ -#define AG71XX_REG_MAC_CFG1 0x0000 -#define AG71XX_REG_MAC_CFG2 0x0004 -#define AG71XX_REG_MAC_IPG 0x0008 -#define AG71XX_REG_MAC_HDX 0x000c -#define AG71XX_REG_MAC_MFL 0x0010 -#define AG71XX_REG_MII_CFG 0x0020 -#define AG71XX_REG_MII_CMD 0x0024 -#define AG71XX_REG_MII_ADDR 0x0028 -#define AG71XX_REG_MII_CTRL 0x002c -#define AG71XX_REG_MII_STATUS 0x0030 -#define AG71XX_REG_MII_IND 0x0034 -#define AG71XX_REG_MAC_IFCTL 0x0038 -#define AG71XX_REG_MAC_ADDR1 0x0040 -#define AG71XX_REG_MAC_ADDR2 0x0044 -#define AG71XX_REG_FIFO_CFG0 0x0048 -#define AG71XX_REG_FIFO_CFG1 0x004c -#define AG71XX_REG_FIFO_CFG2 0x0050 -#define AG71XX_REG_FIFO_CFG3 0x0054 -#define AG71XX_REG_FIFO_CFG4 0x0058 -#define AG71XX_REG_FIFO_CFG5 0x005c -#define AG71XX_REG_FIFO_RAM0 0x0060 -#define AG71XX_REG_FIFO_RAM1 0x0064 -#define AG71XX_REG_FIFO_RAM2 0x0068 -#define AG71XX_REG_FIFO_RAM3 0x006c -#define AG71XX_REG_FIFO_RAM4 0x0070 -#define AG71XX_REG_FIFO_RAM5 0x0074 -#define AG71XX_REG_FIFO_RAM6 0x0078 -#define AG71XX_REG_FIFO_RAM7 0x007c - -#define AG71XX_REG_TX_CTRL 0x0180 -#define AG71XX_REG_TX_DESC 0x0184 -#define AG71XX_REG_TX_STATUS 0x0188 -#define AG71XX_REG_RX_CTRL 0x018c -#define AG71XX_REG_RX_DESC 0x0190 -#define AG71XX_REG_RX_STATUS 0x0194 -#define AG71XX_REG_INT_ENABLE 0x0198 -#define AG71XX_REG_INT_STATUS 0x019c - -#define AG71XX_REG_FIFO_DEPTH 0x01a8 -#define AG71XX_REG_RX_SM 0x01b0 -#define AG71XX_REG_TX_SM 0x01b4 - -#define MAC_CFG1_TXE BIT(0) /* Tx Enable */ -#define MAC_CFG1_STX BIT(1) /* Synchronize Tx Enable */ -#define MAC_CFG1_RXE BIT(2) /* Rx Enable */ -#define MAC_CFG1_SRX BIT(3) /* Synchronize Rx Enable */ -#define MAC_CFG1_TFC BIT(4) /* Tx Flow Control Enable */ -#define MAC_CFG1_RFC BIT(5) /* Rx Flow Control Enable */ -#define MAC_CFG1_LB BIT(8) /* Loopback mode */ -#define MAC_CFG1_SR BIT(31) /* Soft Reset */ - -#define MAC_CFG2_FDX BIT(0) -#define MAC_CFG2_CRC_EN BIT(1) -#define MAC_CFG2_PAD_CRC_EN BIT(2) -#define MAC_CFG2_LEN_CHECK BIT(4) -#define MAC_CFG2_HUGE_FRAME_EN BIT(5) -#define MAC_CFG2_IF_1000 BIT(9) -#define MAC_CFG2_IF_10_100 BIT(8) - -#define FIFO_CFG0_WTM BIT(0) /* Watermark Module */ -#define FIFO_CFG0_RXS BIT(1) /* Rx System Module */ -#define FIFO_CFG0_RXF BIT(2) /* Rx Fabric Module */ -#define FIFO_CFG0_TXS BIT(3) /* Tx System Module */ -#define FIFO_CFG0_TXF BIT(4) /* Tx Fabric Module */ -#define FIFO_CFG0_ALL (FIFO_CFG0_WTM | FIFO_CFG0_RXS | FIFO_CFG0_RXF \ - | FIFO_CFG0_TXS | FIFO_CFG0_TXF) - -#define FIFO_CFG0_ENABLE_SHIFT 8 - -#define FIFO_CFG4_DE BIT(0) /* Drop Event */ -#define FIFO_CFG4_DV BIT(1) /* RX_DV Event */ -#define FIFO_CFG4_FC BIT(2) /* False Carrier */ -#define FIFO_CFG4_CE BIT(3) /* Code Error */ -#define FIFO_CFG4_CR BIT(4) /* CRC error */ -#define FIFO_CFG4_LM BIT(5) /* Length Mismatch */ -#define FIFO_CFG4_LO BIT(6) /* Length out of range */ -#define FIFO_CFG4_OK BIT(7) /* Packet is OK */ -#define FIFO_CFG4_MC BIT(8) /* Multicast Packet */ -#define FIFO_CFG4_BC BIT(9) /* Broadcast Packet */ -#define FIFO_CFG4_DR BIT(10) /* Dribble */ -#define FIFO_CFG4_LE BIT(11) /* Long Event */ -#define FIFO_CFG4_CF BIT(12) /* Control Frame */ -#define FIFO_CFG4_PF BIT(13) /* Pause Frame */ -#define FIFO_CFG4_UO BIT(14) /* Unsupported Opcode */ -#define FIFO_CFG4_VT BIT(15) /* VLAN tag detected */ -#define FIFO_CFG4_FT BIT(16) /* Frame Truncated */ -#define FIFO_CFG4_UC BIT(17) /* Unicast Packet */ - -#define FIFO_CFG5_DE BIT(0) /* Drop Event */ -#define FIFO_CFG5_DV BIT(1) /* RX_DV Event */ -#define FIFO_CFG5_FC BIT(2) /* False Carrier */ -#define FIFO_CFG5_CE BIT(3) /* Code Error */ -#define FIFO_CFG5_LM BIT(4) /* Length Mismatch */ -#define FIFO_CFG5_LO BIT(5) /* Length Out of Range */ -#define FIFO_CFG5_OK BIT(6) /* Packet is OK */ -#define FIFO_CFG5_MC BIT(7) /* Multicast Packet */ -#define FIFO_CFG5_BC BIT(8) /* Broadcast Packet */ -#define FIFO_CFG5_DR BIT(9) /* Dribble */ -#define FIFO_CFG5_CF BIT(10) /* Control Frame */ -#define FIFO_CFG5_PF BIT(11) /* Pause Frame */ -#define FIFO_CFG5_UO BIT(12) /* Unsupported Opcode */ -#define FIFO_CFG5_VT BIT(13) /* VLAN tag detected */ -#define FIFO_CFG5_LE BIT(14) /* Long Event */ -#define FIFO_CFG5_FT BIT(15) /* Frame Truncated */ -#define FIFO_CFG5_16 BIT(16) /* unknown */ -#define FIFO_CFG5_17 BIT(17) /* unknown */ -#define FIFO_CFG5_SF BIT(18) /* Short Frame */ -#define FIFO_CFG5_BM BIT(19) /* Byte Mode */ - -#define AG71XX_INT_TX_PS BIT(0) -#define AG71XX_INT_TX_UR BIT(1) -#define AG71XX_INT_TX_BE BIT(3) -#define AG71XX_INT_RX_PR BIT(4) -#define AG71XX_INT_RX_OF BIT(6) -#define AG71XX_INT_RX_BE BIT(7) - -#define MAC_IFCTL_SPEED BIT(16) - -#define MII_CFG_CLK_DIV_4 0 -#define MII_CFG_CLK_DIV_6 2 -#define MII_CFG_CLK_DIV_8 3 -#define MII_CFG_CLK_DIV_10 4 -#define MII_CFG_CLK_DIV_14 5 -#define MII_CFG_CLK_DIV_20 6 -#define MII_CFG_CLK_DIV_28 7 -#define MII_CFG_CLK_DIV_34 8 -#define MII_CFG_CLK_DIV_42 9 -#define MII_CFG_CLK_DIV_50 10 -#define MII_CFG_CLK_DIV_58 11 -#define MII_CFG_CLK_DIV_66 12 -#define MII_CFG_CLK_DIV_74 13 -#define MII_CFG_CLK_DIV_82 14 -#define MII_CFG_CLK_DIV_98 15 -#define MII_CFG_RESET BIT(31) - -#define MII_CMD_WRITE 0x0 -#define MII_CMD_READ 0x1 -#define MII_ADDR_SHIFT 8 -#define MII_IND_BUSY BIT(0) -#define MII_IND_INVALID BIT(2) - -#define TX_CTRL_TXE BIT(0) /* Tx Enable */ - -#define TX_STATUS_PS BIT(0) /* Packet Sent */ -#define TX_STATUS_UR BIT(1) /* Tx Underrun */ -#define TX_STATUS_BE BIT(3) /* Bus Error */ - -#define RX_CTRL_RXE BIT(0) /* Rx Enable */ - -#define RX_STATUS_PR BIT(0) /* Packet Received */ -#define RX_STATUS_OF BIT(2) /* Rx Overflow */ -#define RX_STATUS_BE BIT(3) /* Bus Error */ - -static inline void ag71xx_check_reg_offset(struct ag71xx *ag, unsigned reg) -{ - switch (reg) { - case AG71XX_REG_MAC_CFG1 ... AG71XX_REG_MAC_MFL: - case AG71XX_REG_MAC_IFCTL ... AG71XX_REG_TX_SM: - case AG71XX_REG_MII_CFG: - break; - - default: - BUG(); - } -} - -static inline void ag71xx_wr(struct ag71xx *ag, unsigned reg, u32 value) -{ - ag71xx_check_reg_offset(ag, reg); - - __raw_writel(value, ag->mac_base + reg); - /* flush write */ - (void) __raw_readl(ag->mac_base + reg); -} - -static inline u32 ag71xx_rr(struct ag71xx *ag, unsigned reg) -{ - ag71xx_check_reg_offset(ag, reg); - - return __raw_readl(ag->mac_base + reg); -} - -static inline void ag71xx_sb(struct ag71xx *ag, unsigned reg, u32 mask) -{ - void __iomem *r; - - ag71xx_check_reg_offset(ag, reg); - - r = ag->mac_base + reg; - __raw_writel(__raw_readl(r) | mask, r); - /* flush write */ - (void)__raw_readl(r); -} - -static inline void ag71xx_cb(struct ag71xx *ag, unsigned reg, u32 mask) -{ - void __iomem *r; - - ag71xx_check_reg_offset(ag, reg); - - r = ag->mac_base + reg; - __raw_writel(__raw_readl(r) & ~mask, r); - /* flush write */ - (void) __raw_readl(r); -} - -static inline void ag71xx_int_enable(struct ag71xx *ag, u32 ints) -{ - ag71xx_sb(ag, AG71XX_REG_INT_ENABLE, ints); -} - -static inline void ag71xx_int_disable(struct ag71xx *ag, u32 ints) -{ - ag71xx_cb(ag, AG71XX_REG_INT_ENABLE, ints); -} - -#ifdef CONFIG_AG71XX_AR8216_SUPPORT -void ag71xx_add_ar8216_header(struct ag71xx *ag, struct sk_buff *skb); -int ag71xx_remove_ar8216_header(struct ag71xx *ag, struct sk_buff *skb, - int pktlen); -static inline int ag71xx_has_ar8216(struct ag71xx *ag) -{ - return ag71xx_get_pdata(ag)->has_ar8216; -} -#else -static inline void ag71xx_add_ar8216_header(struct ag71xx *ag, - struct sk_buff *skb) -{ -} - -static inline int ag71xx_remove_ar8216_header(struct ag71xx *ag, - struct sk_buff *skb, - int pktlen) -{ - return 0; -} -static inline int ag71xx_has_ar8216(struct ag71xx *ag) -{ - return 0; -} -#endif - -#ifdef CONFIG_AG71XX_DEBUG_FS -int ag71xx_debugfs_root_init(void); -void ag71xx_debugfs_root_exit(void); -int ag71xx_debugfs_init(struct ag71xx *ag); -void ag71xx_debugfs_exit(struct ag71xx *ag); -void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, u32 status); -void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, int rx, int tx); -#else -static inline int ag71xx_debugfs_root_init(void) { return 0; } -static inline void ag71xx_debugfs_root_exit(void) {} -static inline int ag71xx_debugfs_init(struct ag71xx *ag) { return 0; } -static inline void ag71xx_debugfs_exit(struct ag71xx *ag) {} -static inline void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, - u32 status) {} -static inline void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, - int rx, int tx) {} -#endif /* CONFIG_AG71XX_DEBUG_FS */ - -void ag71xx_ar7240_start(struct ag71xx *ag); -void ag71xx_ar7240_stop(struct ag71xx *ag); -int ag71xx_ar7240_init(struct ag71xx *ag); -void ag71xx_ar7240_cleanup(struct ag71xx *ag); - -int ag71xx_mdio_mii_read(struct ag71xx_mdio *am, int addr, int reg); -void ag71xx_mdio_mii_write(struct ag71xx_mdio *am, int addr, int reg, u16 val); - -u16 ar7240sw_phy_read(struct mii_bus *mii, unsigned phy_addr, - unsigned reg_addr); -int ar7240sw_phy_write(struct mii_bus *mii, unsigned phy_addr, - unsigned reg_addr, u16 reg_val); - -#endif /* _AG71XX_H */ |