diff options
| author | Greg Kroah-Hartman <gregkh@suse.de> | 2009-09-16 19:39:45 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-09-16 19:39:45 -0700 |
| commit | 4834eecdb16b2a81b489a91c2b4a436dc26ea176 (patch) | |
| tree | f1bd6cfff31a4df4b72f4563bedba45a8be80cd3 | |
| parent | 4ba46414f5f4b8eefcaf77b6f16ad0273dfdb082 (diff) | |
| download | patches-4834eecdb16b2a81b489a91c2b4a436dc26ea176.tar.gz | |
ks8851 driver added
| -rw-r--r-- | ks8851-ethernet-network-driver.patch | 1748 | ||||
| -rw-r--r-- | series | 2 | ||||
| -rw-r--r-- | version | 2 |
3 files changed, 1750 insertions, 2 deletions
diff --git a/ks8851-ethernet-network-driver.patch b/ks8851-ethernet-network-driver.patch new file mode 100644 index 00000000000000..e65108dd2c3c3a --- /dev/null +++ b/ks8851-ethernet-network-driver.patch @@ -0,0 +1,1748 @@ +Cc: "Li, Charles" <Charles.Li@Micrel.Com> + + +Subject: ks8851 ethernet network driver + +From: Choi, David <David.Choi@Micrel.Com> + +This is a network driver for the ks8851 16bit MLL ethernet device. + +Signed-off-by: David J. Choi <david.choi@micrel.com> +Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> + + +--- + drivers/net/Kconfig | 6 + drivers/net/Makefile | 1 + drivers/net/ks8851_mll.c | 1701 +++++++++++++++++++++++++++++++++++++++++++++++ + 3 files changed, 1708 insertions(+) + +--- a/drivers/net/Kconfig ++++ b/drivers/net/Kconfig +@@ -1738,6 +1738,12 @@ config KS8851 + help + SPI driver for Micrel KS8851 SPI attached network chip. + ++config KS8851_MLL ++ tristate "Micrel KSZ8851" ++ depends on HAS_IOMEM ++ help ++ This platform driver is for Micrel KSZ8851 MLL chip. ++ + config VIA_RHINE + tristate "VIA Rhine support" + depends on NET_PCI && PCI +--- /dev/null ++++ b/drivers/net/ks8851_mll.c +@@ -0,0 +1,1701 @@ ++/** ++ * drivers/net/ks8851_mll.c ++ * Copyright (c) 2009 Micrel Inc. ++ * ++ * 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. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. ++ */ ++ ++/** ++ * Supports: ++ * KS8851 16bit MLL chip from Micrel Inc. ++ */ ++ ++#define DEBUG ++ ++#include <linux/module.h> ++#include <linux/kernel.h> ++#include <linux/netdevice.h> ++#include <linux/etherdevice.h> ++#include <linux/ethtool.h> ++#include <linux/cache.h> ++#include <linux/crc32.h> ++#include <linux/mii.h> ++#include <linux/platform_device.h> ++#include <linux/delay.h> ++ ++#define DRV_NAME "ks8851_mll" ++ ++static u8 KS_DEFAULT_MAC_ADDRESS[] = { 0x00, 0x10, 0xA1, 0x86, 0x95, 0x11 }; ++#define MAX_RECV_FRAMES 32 ++#define MAX_BUF_SIZE 2048 ++#define TX_BUF_SIZE 2000 ++#define RX_BUF_SIZE 2000 ++ ++#define KS_CCR 0x08 ++#define CCR_EEPROM (1 << 9) ++#define CCR_SPI (1 << 8) ++#define CCR_8BIT (1 << 7) ++#define CCR_16BIT (1 << 6) ++#define CCR_32BIT (1 << 5) ++#define CCR_SHARED (1 << 4) ++#define CCR_32PIN (1 << 0) ++ ++/* MAC address registers */ ++#define KS_MARL 0x10 ++#define KS_MARM 0x12 ++#define KS_MARH 0x14 ++ ++#define KS_OBCR 0x20 ++#define OBCR_ODS_16MA (1 << 6) ++ ++#define KS_EEPCR 0x22 ++#define EEPCR_EESA (1 << 4) ++#define EEPCR_EESB (1 << 3) ++#define EEPCR_EEDO (1 << 2) ++#define EEPCR_EESCK (1 << 1) ++#define EEPCR_EECS (1 << 0) ++ ++#define KS_MBIR 0x24 ++#define MBIR_TXMBF (1 << 12) ++#define MBIR_TXMBFA (1 << 11) ++#define MBIR_RXMBF (1 << 4) ++#define MBIR_RXMBFA (1 << 3) ++ ++#define KS_GRR 0x26 ++#define GRR_QMU (1 << 1) ++#define GRR_GSR (1 << 0) ++ ++#define KS_WFCR 0x2A ++#define WFCR_MPRXE (1 << 7) ++#define WFCR_WF3E (1 << 3) ++#define WFCR_WF2E (1 << 2) ++#define WFCR_WF1E (1 << 1) ++#define WFCR_WF0E (1 << 0) ++ ++#define KS_WF0CRC0 0x30 ++#define KS_WF0CRC1 0x32 ++#define KS_WF0BM0 0x34 ++#define KS_WF0BM1 0x36 ++#define KS_WF0BM2 0x38 ++#define KS_WF0BM3 0x3A ++ ++#define KS_WF1CRC0 0x40 ++#define KS_WF1CRC1 0x42 ++#define KS_WF1BM0 0x44 ++#define KS_WF1BM1 0x46 ++#define KS_WF1BM2 0x48 ++#define KS_WF1BM3 0x4A ++ ++#define KS_WF2CRC0 0x50 ++#define KS_WF2CRC1 0x52 ++#define KS_WF2BM0 0x54 ++#define KS_WF2BM1 0x56 ++#define KS_WF2BM2 0x58 ++#define KS_WF2BM3 0x5A ++ ++#define KS_WF3CRC0 0x60 ++#define KS_WF3CRC1 0x62 ++#define KS_WF3BM0 0x64 ++#define KS_WF3BM1 0x66 ++#define KS_WF3BM2 0x68 ++#define KS_WF3BM3 0x6A ++ ++#define KS_TXCR 0x70 ++#define TXCR_TCGICMP (1 << 8) ++#define TXCR_TCGUDP (1 << 7) ++#define TXCR_TCGTCP (1 << 6) ++#define TXCR_TCGIP (1 << 5) ++#define TXCR_FTXQ (1 << 4) ++#define TXCR_TXFCE (1 << 3) ++#define TXCR_TXPE (1 << 2) ++#define TXCR_TXCRC (1 << 1) ++#define TXCR_TXE (1 << 0) ++ ++#define KS_TXSR 0x72 ++#define TXSR_TXLC (1 << 13) ++#define TXSR_TXMC (1 << 12) ++#define TXSR_TXFID_MASK (0x3f << 0) ++#define TXSR_TXFID_SHIFT (0) ++#define TXSR_TXFID_GET(_v) (((_v) >> 0) & 0x3f) ++ ++ ++#define KS_RXCR1 0x74 ++#define RXCR1_FRXQ (1 << 15) ++#define RXCR1_RXUDPFCC (1 << 14) ++#define RXCR1_RXTCPFCC (1 << 13) ++#define RXCR1_RXIPFCC (1 << 12) ++#define RXCR1_RXPAFMA (1 << 11) ++#define RXCR1_RXFCE (1 << 10) ++#define RXCR1_RXEFE (1 << 9) ++#define RXCR1_RXMAFMA (1 << 8) ++#define RXCR1_RXBE (1 << 7) ++#define RXCR1_RXME (1 << 6) ++#define RXCR1_RXUE (1 << 5) ++#define RXCR1_RXAE (1 << 4) ++#define RXCR1_RXINVF (1 << 1) ++#define RXCR1_RXE (1 << 0) ++#define RXCR1_FILTER_MASK (RXCR1_RXINVF | RXCR1_RXAE | \ ++ RXCR1_RXMAFMA | RXCR1_RXPAFMA) ++ ++#define KS_RXCR2 0x76 ++#define RXCR2_SRDBL_MASK (0x7 << 5) ++#define RXCR2_SRDBL_SHIFT (5) ++#define RXCR2_SRDBL_4B (0x0 << 5) ++#define RXCR2_SRDBL_8B (0x1 << 5) ++#define RXCR2_SRDBL_16B (0x2 << 5) ++#define RXCR2_SRDBL_32B (0x3 << 5) ++/* #define RXCR2_SRDBL_FRAME (0x4 << 5) */ ++#define RXCR2_IUFFP (1 << 4) ++#define RXCR2_RXIUFCEZ (1 << 3) ++#define RXCR2_UDPLFE (1 << 2) ++#define RXCR2_RXICMPFCC (1 << 1) ++#define RXCR2_RXSAF (1 << 0) ++ ++#define KS_TXMIR 0x78 ++ ++#define KS_RXFHSR 0x7C ++#define RXFSHR_RXFV (1 << 15) ++#define RXFSHR_RXICMPFCS (1 << 13) ++#define RXFSHR_RXIPFCS (1 << 12) ++#define RXFSHR_RXTCPFCS (1 << 11) ++#define RXFSHR_RXUDPFCS (1 << 10) ++#define RXFSHR_RXBF (1 << 7) ++#define RXFSHR_RXMF (1 << 6) ++#define RXFSHR_RXUF (1 << 5) ++#define RXFSHR_RXMR (1 << 4) ++#define RXFSHR_RXFT (1 << 3) ++#define RXFSHR_RXFTL (1 << 2) ++#define RXFSHR_RXRF (1 << 1) ++#define RXFSHR_RXCE (1 << 0) ++#define RXFSHR_ERR (RXFSHR_RXCE | RXFSHR_RXRF |\ ++ RXFSHR_RXFTL | RXFSHR_RXMR |\ ++ RXFSHR_RXICMPFCS | RXFSHR_RXIPFCS |\ ++ RXFSHR_RXTCPFCS) ++#define KS_RXFHBCR 0x7E ++#define RXFHBCR_CNT_MASK 0x0FFF ++ ++#define KS_TXQCR 0x80 ++#define TXQCR_AETFE (1 << 2) ++#define TXQCR_TXQMAM (1 << 1) ++#define TXQCR_METFE (1 << 0) ++ ++#define KS_RXQCR 0x82 ++#define RXQCR_RXDTTS (1 << 12) ++#define RXQCR_RXDBCTS (1 << 11) ++#define RXQCR_RXFCTS (1 << 10) ++#define RXQCR_RXIPHTOE (1 << 9) ++#define RXQCR_RXDTTE (1 << 7) ++#define RXQCR_RXDBCTE (1 << 6) ++#define RXQCR_RXFCTE (1 << 5) ++#define RXQCR_ADRFE (1 << 4) ++#define RXQCR_SDA (1 << 3) ++#define RXQCR_RRXEF (1 << 0) ++#define RXQCR_CMD_CNTL (RXQCR_RXFCTE|RXQCR_ADRFE) ++ ++#define KS_TXFDPR 0x84 ++#define TXFDPR_TXFPAI (1 << 14) ++#define TXFDPR_TXFP_MASK (0x7ff << 0) ++#define TXFDPR_TXFP_SHIFT (0) ++ ++#define KS_RXFDPR 0x86 ++#define RXFDPR_RXFPAI (1 << 14) ++ ++#define KS_RXDTTR 0x8C ++#define KS_RXDBCTR 0x8E ++ ++#define KS_IER 0x90 ++#define KS_ISR 0x92 ++#define IRQ_LCI (1 << 15) ++#define IRQ_TXI (1 << 14) ++#define IRQ_RXI (1 << 13) ++#define IRQ_RXOI (1 << 11) ++#define IRQ_TXPSI (1 << 9) ++#define IRQ_RXPSI (1 << 8) ++#define IRQ_TXSAI (1 << 6) ++#define IRQ_RXWFDI (1 << 5) ++#define IRQ_RXMPDI (1 << 4) ++#define IRQ_LDI (1 << 3) ++#define IRQ_EDI (1 << 2) ++#define IRQ_SPIBEI (1 << 1) ++#define IRQ_DEDI (1 << 0) ++ ++#define KS_RXFCTR 0x9C ++#define RXFCTR_THRESHOLD_MASK 0x00FF ++ ++#define KS_RXFC 0x9D ++#define RXFCTR_RXFC_MASK (0xff << 8) ++#define RXFCTR_RXFC_SHIFT (8) ++#define RXFCTR_RXFC_GET(_v) (((_v) >> 8) & 0xff) ++#define RXFCTR_RXFCT_MASK (0xff << 0) ++#define RXFCTR_RXFCT_SHIFT (0) ++ ++#define KS_TXNTFSR 0x9E ++ ++#define KS_MAHTR0 0xA0 ++#define KS_MAHTR1 0xA2 ++#define KS_MAHTR2 0xA4 ++#define KS_MAHTR3 0xA6 ++ ++#define KS_FCLWR 0xB0 ++#define KS_FCHWR 0xB2 ++#define KS_FCOWR 0xB4 ++ ++#define KS_CIDER 0xC0 ++#define CIDER_ID 0x8870 ++#define CIDER_REV_MASK (0x7 << 1) ++#define CIDER_REV_SHIFT (1) ++#define CIDER_REV_GET(_v) (((_v) >> 1) & 0x7) ++ ++#define KS_CGCR 0xC6 ++#define KS_IACR 0xC8 ++#define IACR_RDEN (1 << 12) ++#define IACR_TSEL_MASK (0x3 << 10) ++#define IACR_TSEL_SHIFT (10) ++#define IACR_TSEL_MIB (0x3 << 10) ++#define IACR_ADDR_MASK (0x1f << 0) ++#define IACR_ADDR_SHIFT (0) ++ ++#define KS_IADLR 0xD0 ++#define KS_IAHDR 0xD2 ++ ++#define KS_PMECR 0xD4 ++#define PMECR_PME_DELAY (1 << 14) ++#define PMECR_PME_POL (1 << 12) ++#define PMECR_WOL_WAKEUP (1 << 11) ++#define PMECR_WOL_MAGICPKT (1 << 10) ++#define PMECR_WOL_LINKUP (1 << 9) ++#define PMECR_WOL_ENERGY (1 << 8) ++#define PMECR_AUTO_WAKE_EN (1 << 7) ++#define PMECR_WAKEUP_NORMAL (1 << 6) ++#define PMECR_WKEVT_MASK (0xf << 2) ++#define PMECR_WKEVT_SHIFT (2) ++#define PMECR_WKEVT_GET(_v) (((_v) >> 2) & 0xf) ++#define PMECR_WKEVT_ENERGY (0x1 << 2) ++#define PMECR_WKEVT_LINK (0x2 << 2) ++#define PMECR_WKEVT_MAGICPKT (0x4 << 2) ++#define PMECR_WKEVT_FRAME (0x8 << 2) ++#define PMECR_PM_MASK (0x3 << 0) ++#define PMECR_PM_SHIFT (0) ++#define PMECR_PM_NORMAL (0x0 << 0) ++#define PMECR_PM_ENERGY (0x1 << 0) ++#define PMECR_PM_SOFTDOWN (0x2 << 0) ++#define PMECR_PM_POWERSAVE (0x3 << 0) ++ ++/* Standard MII PHY data */ ++#define KS_P1MBCR 0xE4 ++#define P1MBCR_FORCE_FDX (1 << 8) ++ ++#define KS_P1MBSR 0xE6 ++#define P1MBSR_AN_COMPLETE (1 << 5) ++#define P1MBSR_AN_CAPABLE (1 << 3) ++#define P1MBSR_LINK_UP (1 << 2) ++ ++#define KS_PHY1ILR 0xE8 ++#define KS_PHY1IHR 0xEA ++#define KS_P1ANAR 0xEC ++#define KS_P1ANLPR 0xEE ++ ++#define KS_P1SCLMD 0xF4 ++#define P1SCLMD_LEDOFF (1 << 15) ++#define P1SCLMD_TXIDS (1 << 14) ++#define P1SCLMD_RESTARTAN (1 << 13) ++#define P1SCLMD_DISAUTOMDIX (1 << 10) ++#define P1SCLMD_FORCEMDIX (1 << 9) ++#define P1SCLMD_AUTONEGEN (1 << 7) ++#define P1SCLMD_FORCE100 (1 << 6) ++#define P1SCLMD_FORCEFDX (1 << 5) ++#define P1SCLMD_ADV_FLOW (1 << 4) ++#define P1SCLMD_ADV_100BT_FDX (1 << 3) ++#define P1SCLMD_ADV_100BT_HDX (1 << 2) ++#define P1SCLMD_ADV_10BT_FDX (1 << 1) ++#define P1SCLMD_ADV_10BT_HDX (1 << 0) ++ ++#define KS_P1CR 0xF6 ++#define P1CR_HP_MDIX (1 << 15) ++#define P1CR_REV_POL (1 << 13) ++#define P1CR_OP_100M (1 << 10) ++#define P1CR_OP_FDX (1 << 9) ++#define P1CR_OP_MDI (1 << 7) ++#define P1CR_AN_DONE (1 << 6) ++#define P1CR_LINK_GOOD (1 << 5) ++#define P1CR_PNTR_FLOW (1 << 4) ++#define P1CR_PNTR_100BT_FDX (1 << 3) ++#define P1CR_PNTR_100BT_HDX (1 << 2) ++#define P1CR_PNTR_10BT_FDX (1 << 1) ++#define P1CR_PNTR_10BT_HDX (1 << 0) ++ ++/* TX Frame control */ ++ ++#define TXFR_TXIC (1 << 15) ++#define TXFR_TXFID_MASK (0x3f << 0) ++#define TXFR_TXFID_SHIFT (0) ++ ++#define KS_P1SR 0xF8 ++#define P1SR_HP_MDIX (1 << 15) ++#define P1SR_REV_POL (1 << 13) ++#define P1SR_OP_100M (1 << 10) ++#define P1SR_OP_FDX (1 << 9) ++#define P1SR_OP_MDI (1 << 7) ++#define P1SR_AN_DONE (1 << 6) ++#define P1SR_LINK_GOOD (1 << 5) ++#define P1SR_PNTR_FLOW (1 << 4) ++#define P1SR_PNTR_100BT_FDX (1 << 3) ++#define P1SR_PNTR_100BT_HDX (1 << 2) ++#define P1SR_PNTR_10BT_FDX (1 << 1) ++#define P1SR_PNTR_10BT_HDX (1 << 0) ++ ++#define ENUM_BUS_NONE 0 ++#define ENUM_BUS_8BIT 1 ++#define ENUM_BUS_16BIT 2 ++#define ENUM_BUS_32BIT 3 ++ ++#define MAX_MCAST_LST 32 ++#define HW_MCAST_SIZE 8 ++#define MAC_ADDR_LEN 6 ++ ++/** ++ * union ks_tx_hdr - tx header data ++ * @txb: The header as bytes ++ * @txw: The header as 16bit, little-endian words ++ * ++ * A dual representation of the tx header data to allow ++ * access to individual bytes, and to allow 16bit accesses ++ * with 16bit alignment. ++ */ ++union ks_tx_hdr { ++ u8 txb[4]; ++ __le16 txw[2]; ++}; ++ ++/** ++ * struct ks_net - KS8851 driver private data ++ * @net_device : The network device we're bound to ++ * @hw_addr : start address of data register. ++ * @hw_addr_cmd : start address of command register. ++ * @txh : temporaly buffer to save status/length. ++ * @lock : Lock to ensure that the device is not accessed when busy. ++ * @pdev : Pointer to platform device. ++ * @mii : The MII state information for the mii calls. ++ * @frame_head_info : frame header information for multi-pkt rx. ++ * @statelock : Lock on this structure for tx list. ++ * @msg_enable : The message flags controlling driver output (see ethtool). ++ * @frame_cnt : number of frames received. ++ * @bus_width : i/o bus width. ++ * @irq : irq number assigned to this device. ++ * @rc_rxqcr : Cached copy of KS_RXQCR. ++ * @rc_txcr : Cached copy of KS_TXCR. ++ * @rc_ier : Cached copy of KS_IER. ++ * @sharedbus : Multipex(addr and data bus) mode indicator. ++ * @cmd_reg_cache : command register cached. ++ * @cmd_reg_cache_int : command register cached. Used in the irq handler. ++ * @promiscuous : promiscuous mode indicator. ++ * @all_mcast : mutlicast indicator. ++ * @mcast_lst_size : size of multicast list. ++ * @mcast_lst : multicast list. ++ * @mcast_bits : multicast enabed. ++ * @mac_addr : MAC address assigned to this device. ++ * @fid : frame id. ++ * @extra_byte : number of extra byte prepended rx pkt. ++ * @enabled : indicator this device works. ++ * ++ * The @lock ensures that the chip is protected when certain operations are ++ * in progress. When the read or write packet transfer is in progress, most ++ * of the chip registers are not accessible until the transfer is finished and ++ * the DMA has been de-asserted. ++ * ++ * The @statelock is used to protect information in the structure which may ++ * need to be accessed via several sources, such as the network driver layer ++ * or one of the work queues. ++ * ++ */ ++#define MALLOC(x) kmalloc(x, GFP_KERNEL) ++ ++/* Receive multiplex framer header info */ ++struct type_frame_head { ++ u16 sts; /* Frame status */ ++ u16 len; /* Byte count */ ++}; ++ ++struct ks_net { ++ struct net_device *netdev; ++ void __iomem *hw_addr; ++ void __iomem *hw_addr_cmd; ++ union ks_tx_hdr txh ____cacheline_aligned; ++ struct mutex lock; /* spinlock to be interrupt safe */ ++ struct platform_device *pdev; ++ struct mii_if_info mii; ++ struct type_frame_head *frame_head_info; ++ spinlock_t statelock; ++ u32 msg_enable; ++ u32 frame_cnt; ++ int bus_width; ++ int irq; ++ ++ u16 rc_rxqcr; ++ u16 rc_txcr; ++ u16 rc_ier; ++ u16 sharedbus; ++ u16 cmd_reg_cache; ++ u16 cmd_reg_cache_int; ++ u16 promiscuous; ++ u16 all_mcast; ++ u16 mcast_lst_size; ++ u8 mcast_lst[MAX_MCAST_LST][MAC_ADDR_LEN]; ++ u8 mcast_bits[HW_MCAST_SIZE]; ++ u8 mac_addr[6]; ++ u8 fid; ++ u8 extra_byte; ++ u8 enabled; ++}; ++ ++static int msg_enable; ++ ++#define ks_info(_ks, _msg...) dev_info(&(_ks)->pdev->dev, _msg) ++#define ks_warn(_ks, _msg...) dev_warn(&(_ks)->pdev->dev, _msg) ++#define ks_dbg(_ks, _msg...) dev_dbg(&(_ks)->pdev->dev, _msg) ++#define ks_err(_ks, _msg...) dev_err(&(_ks)->pdev->dev, _msg) ++ ++#define BE3 0x8000 /* Byte Enable 3 */ ++#define BE2 0x4000 /* Byte Enable 2 */ ++#define BE1 0x2000 /* Byte Enable 1 */ ++#define BE0 0x1000 /* Byte Enable 0 */ ++ ++/** ++ * register read/write calls. ++ * ++ * All these calls issue transactions to access the chip's registers. They ++ * all require that the necessary lock is held to prevent accesses when the ++ * chip is busy transfering packet data (RX/TX FIFO accesses). ++ */ ++ ++/** ++ * ks_rdreg8 - read 8 bit register from device ++ * @ks : The chip information ++ * @offset: The register address ++ * ++ * Read a 8bit register from the chip, returning the result ++ */ ++static u8 ks_rdreg8(struct ks_net *ks, int offset) ++{ ++ u16 data; ++ u8 shift_bit = offset & 0x03; ++ u8 shift_data = (offset & 1) << 3; ++ ks->cmd_reg_cache = (u16) offset | (u16)(BE0 << shift_bit); ++ iowrite16(ks->cmd_reg_cache, ks->hw_addr_cmd); ++ data = ioread16(ks->hw_addr); ++ return (u8)(data >> shift_data); ++} ++ ++/** ++ * ks_rdreg16 - read 16 bit register from device ++ * @ks : The chip information ++ * @offset: The register address ++ * ++ * Read a 16bit register from the chip, returning the result ++ */ ++ ++static u16 ks_rdreg16(struct ks_net *ks, int offset) ++{ ++ ks->cmd_reg_cache = (u16)offset | ((BE1 | BE0) << (offset & 0x02)); ++ iowrite16(ks->cmd_reg_cache, ks->hw_addr_cmd); ++ return ioread16(ks->hw_addr); ++} ++ ++/** ++ * ks_wrreg8 - write 8bit register value to chip ++ * @ks: The chip information ++ * @offset: The register address ++ * @value: The value to write ++ * ++ */ ++static void ks_wrreg8(struct ks_net *ks, int offset, u8 value) ++{ ++ u8 shift_bit = (offset & 0x03); ++ u16 value_write = (u16)(value << ((offset & 1) << 3)); ++ ks->cmd_reg_cache = (u16)offset | (BE0 << shift_bit); ++ iowrite16(ks->cmd_reg_cache, ks->hw_addr_cmd); ++ iowrite16(value_write, ks->hw_addr); ++} ++ ++/** ++ * ks_wrreg16 - write 16bit register value to chip ++ * @ks: The chip information ++ * @offset: The register address ++ * @value: The value to write ++ * ++ */ ++ ++static void ks_wrreg16(struct ks_net *ks, int offset, u16 value) ++{ ++ ks->cmd_reg_cache = (u16)offset | ((BE1 | BE0) << (offset & 0x02)); ++ iowrite16(ks->cmd_reg_cache, ks->hw_addr_cmd); ++ iowrite16(value, ks->hw_addr); ++} ++ ++/** ++ * ks_inblk - read a block of data from QMU. This is called after sudo DMA mode enabled. ++ * @ks: The chip state ++ * @wptr: buffer address to save data ++ * @len: length in byte to read ++ * ++ */ ++static inline void ks_inblk(struct ks_net *ks, u16 *wptr, u32 len) ++{ ++ u32 data_port = (u32)ks->hw_addr; ++ len >>= 1; ++ do { ++ *wptr++ = (u16)ioread16(data_port); ++ } while (--len); ++} ++ ++/** ++ * ks_outblk - write data to QMU. This is called after sudo DMA mode enabled. ++ * @ks: The chip information ++ * @wptr: buffer address ++ * @len: length in byte to write ++ * ++ */ ++static inline void ks_outblk(struct ks_net *ks, u16 *wptr, u32 len) ++{ ++ u32 data_port = (u32)ks->hw_addr; ++ len >>= 1; ++ do { ++ iowrite16(*wptr++, data_port); ++ } while (--len); ++} ++ ++/** ++ * ks_tx_fifo_space - return the available hardware buffer size. ++ * @ks: The chip information ++ * ++ */ ++static inline u16 ks_tx_fifo_space(struct ks_net *ks) ++{ ++ return ks_rdreg16(ks, KS_TXMIR) & 0x1fff; ++} ++ ++/** ++ * ks_save_cmd_reg - save the command register from the cache. ++ * @ks: The chip information ++ * ++ */ ++static inline void ks_save_cmd_reg(struct ks_net *ks) ++{ ++ /*ks8851 MLL has a bug to read back the command register. ++ * So rely on software to save the content of command register. ++ */ ++ ks->cmd_reg_cache_int = ks->cmd_reg_cache; ++} ++ ++/** ++ * ks_restore_cmd_reg - restore the command register from the cache and ++ * write to hardware register. ++ * @ks: The chip information ++ * ++ */ ++static inline void ks_restore_cmd_reg(struct ks_net *ks) ++{ ++ ks->cmd_reg_cache = ks->cmd_reg_cache_int; ++ iowrite16(ks->cmd_reg_cache, ks->hw_addr_cmd); ++} ++ ++/** ++ * ks_set_powermode - set power mode of the device ++ * @ks: The chip information ++ * @pwrmode: The power mode value to write to KS_PMECR. ++ * ++ * Change the power mode of the chip. ++ */ ++static void ks_set_powermode(struct ks_net *ks, unsigned pwrmode) ++{ ++ unsigned pmecr; ++ ++ if (netif_msg_hw(ks)) ++ ks_dbg(ks, "setting power mode %d\n", pwrmode); ++ ++ ks_rdreg16(ks, KS_GRR); ++ pmecr = ks_rdreg16(ks, KS_PMECR); ++ pmecr &= ~PMECR_PM_MASK; ++ pmecr |= pwrmode; ++ ++ ks_wrreg16(ks, KS_PMECR, pmecr); ++} ++ ++/** ++ * ks_read_config - read chip configuration of bus width. ++ * @ks: The chip information ++ * ++ */ ++static void ks_read_config(struct ks_net *ks) ++{ ++ u16 reg_data = 0; ++ ++ /* Regardless of bus width, 8 bit read should always work.*/ ++ reg_data = ks_rdreg8(ks, KS_CCR) & 0x00FF; ++ reg_data |= ks_rdreg8(ks, KS_CCR+1) << 8; ++ ++ /* addr/data bus are multiplexed */ ++ ks->sharedbus = (reg_data & CCR_SHARED) == CCR_SHARED; ++ ++ /* There are garbage data when reading data from QMU, ++ depending on bus-width. ++ */ ++ ++ if (reg_data & CCR_8BIT) { ++ ks->bus_width = ENUM_BUS_8BIT; ++ ks->extra_byte = 1; ++ } else if (reg_data & CCR_16BIT) { ++ ks->bus_width = ENUM_BUS_16BIT; ++ ks->extra_byte = 2; ++ } else { ++ ks->bus_width = ENUM_BUS_32BIT; ++ ks->extra_byte = 4; ++ } ++} ++ ++/** ++ * ks_soft_reset - issue one of the soft reset to the device ++ * @ks: The device state. ++ * @op: The bit(s) to set in the GRR ++ * ++ * Issue the relevant soft-reset command to the device's GRR register ++ * specified by @op. ++ * ++ * Note, the delays are in there as a caution to ensure that the reset ++ * has time to take effect and then complete. Since the datasheet does ++ * not currently specify the exact sequence, we have chosen something ++ * that seems to work with our device. ++ */ ++static void ks_soft_reset(struct ks_net *ks, unsigned op) ++{ ++ /* Disable interrupt first */ ++ ks_wrreg16(ks, KS_IER, 0x0000); ++ ks_wrreg16(ks, KS_GRR, op); ++ mdelay(10); /* wait a short time to effect reset */ ++ ks_wrreg16(ks, KS_GRR, 0); ++ mdelay(1); /* wait for condition to clear */ ++} ++ ++ ++/** ++ * ks_read_qmu - read 1 pkt data from the QMU. ++ * @ks: The chip information ++ * @buf: buffer address to save 1 pkt ++ * @len: Pkt length ++ * Here is the sequence to read 1 pkt: ++ * 1. set sudo DMA mode ++ * 2. read prepend data ++ * 3. read pkt data ++ * 4. reset sudo DMA Mode ++ */ ++static inline void ks_read_qmu(struct ks_net *ks, u16 *buf, u32 len) ++{ ++ u32 r = ks->extra_byte & 0x1 ; ++ u32 w = ks->extra_byte - r; ++ ++ /* 1. set sudo DMA mode */ ++ ks_wrreg16(ks, KS_RXFDPR, RXFDPR_RXFPAI); ++ ks_wrreg8(ks, KS_RXQCR, (ks->rc_rxqcr | RXQCR_SDA) & 0xff); ++ ++ /* 2. read prepend data */ ++ /** ++ * read 4 + extra bytes and discard them. ++ * extra bytes for dummy, 2 for status, 2 for len ++ */ ++ ++ /* use likely(r) for 8 bit access for performance */ ++ if (unlikely(r)) ++ ioread8(ks->hw_addr); ++ ks_inblk(ks, buf, w + 2 + 2); ++ ++ /* 3. read pkt data */ ++ ks_inblk(ks, buf, ALIGN(len, 4)); ++ ++ /* 4. reset sudo DMA Mode */ ++ ks_wrreg8(ks, KS_RXQCR, ks->rc_rxqcr); ++} ++ ++/** ++ * ks_rcv - read multiple pkts data from the QMU. ++ * @ks: The chip information ++ * @netdev: The network device being opened. ++ * ++ * Read all of header information before reading pkt content. ++ * It is not allowed only port of pkts in QMU after issuing ++ * interrupt ack. ++ */ ++static void ks_rcv(struct ks_net *ks, struct net_device *netdev) ++{ ++ u32 i; ++ struct type_frame_head *frame_hdr = ks->frame_head_info; ++ struct sk_buff *skb; ++ ++ ks->frame_cnt = ks_rdreg16(ks, KS_RXFCTR) >> 8; ++ ++ /* read all header information */ ++ for (i = 0; i < ks->frame_cnt; i++) { ++ /* Checking Received packet status */ ++ frame_hdr->sts = ks_rdreg16(ks, KS_RXFHSR); ++ /* Get packet len from hardware */ ++ frame_hdr->len = ks_rdreg16(ks, KS_RXFHBCR); ++ frame_hdr++; ++ } ++ ++ frame_hdr = ks->frame_head_info; ++ while (ks->frame_cnt--) { ++ skb = dev_alloc_skb(frame_hdr->len + 16); ++ if (likely(skb && (frame_hdr->sts & RXFSHR_RXFV) && ++ (frame_hdr->len < RX_BUF_SIZE) && frame_hdr->len)) { ++ skb_reserve(skb, 2); ++ /* read data block including CRC 4 bytes */ ++ ks_read_qmu(ks, (u16 *)skb->data, frame_hdr->len + 4); ++ skb_put(skb, frame_hdr->len); ++ skb->dev = netdev; ++ skb->protocol = eth_type_trans(skb, netdev); ++ netif_rx(skb); ++ } else { ++ printk(KERN_ERR "%s: err:skb alloc\n", __func__); ++ ks_wrreg16(ks, KS_RXQCR, (ks->rc_rxqcr | RXQCR_RRXEF)); ++ if (skb) ++ dev_kfree_skb_irq(skb); ++ } ++ frame_hdr++; ++ } ++} ++ ++/** ++ * ks_update_link_status - link status update. ++ * @netdev: The network device being opened. ++ * @ks: The chip information ++ * ++ */ ++ ++static void ks_update_link_status(struct net_device *netdev, struct ks_net *ks) ++{ ++ /* check the status of the link */ ++ u32 link_up_status; ++ if (ks_rdreg16(ks, KS_P1SR) & P1SR_LINK_GOOD) { ++ netif_carrier_on(netdev); ++ link_up_status = true; ++ } else { ++ netif_carrier_off(netdev); ++ link_up_status = false; ++ } ++ if (netif_msg_link(ks)) ++ ks_dbg(ks, "%s: %s\n", ++ __func__, link_up_status ? "UP" : "DOWN"); ++} ++ ++/** ++ * ks_irq - device interrupt handler ++ * @irq: Interrupt number passed from the IRQ hnalder. ++ * @pw: The private word passed to register_irq(), our struct ks_net. ++ * ++ * This is the handler invoked to find out what happened ++ * ++ * Read the interrupt status, work out what needs to be done and then clear ++ * any of the interrupts that are not needed. ++ */ ++ ++static irqreturn_t ks_irq(int irq, void *pw) ++{ ++ struct ks_net *ks = pw; ++ struct net_device *netdev = ks->netdev; ++ u16 status; ++ ++ /*this should be the first in IRQ handler */ ++ ks_save_cmd_reg(ks); ++ ++ status = ks_rdreg16(ks, KS_ISR); ++ ks_wrreg16(ks, KS_ISR, status); ++ ++ if (likely(status & IRQ_RXI)) ++ ks_rcv(ks, netdev); ++ ++ if (unlikely(status & IRQ_LCI)) ++ ks_update_link_status(netdev, ks); ++ ++ if (unlikely(status & IRQ_TXI)) ++ netif_wake_queue(netdev); ++ ++ if (unlikely(status & IRQ_LDI)) { ++ ++ u16 pmecr = ks_rdreg16(ks, KS_PMECR); ++ pmecr &= ~PMECR_WKEVT_MASK; ++ ks_wrreg16(ks, KS_PMECR, pmecr | PMECR_WKEVT_LINK); ++ } ++ ++ /* this should be the last in IRQ handler*/ ++ ks_restore_cmd_reg(ks); ++ return IRQ_HANDLED; ++} ++ ++ ++/** ++ * ks_net_open - open network device ++ * @netdev: The network device being opened. ++ * ++ * Called when the network device is marked active, such as a user executing ++ * 'ifconfig up' on the device. ++ */ ++static int ks_net_open(struct net_device *netdev) ++{ ++ struct ks_net *ks = netdev_priv(netdev); ++ int err; ++ ++#define KS_INT_FLAGS (IRQF_DISABLED|IRQF_TRIGGER_LOW) ++ /* lock the card, even if we may not actually do anything ++ * else at the moment. ++ */ ++ mutex_lock(&ks->lock); ++ ++ if (netif_msg_ifup(ks)) ++ ks_dbg(ks, "%s - entry\n", __func__); ++ ++ /* reset the HW */ ++ err = request_irq(ks->irq, ks_irq, KS_INT_FLAGS, DRV_NAME, ks); ++ ++ if (err) { ++ printk(KERN_ERR "Failed to request IRQ: %d: %d\n", ++ ks->irq, err); ++ return err; ++ } ++ ++ if (netif_msg_ifup(ks)) ++ ks_dbg(ks, "network device %s up\n", netdev->name); ++ ++ mutex_unlock(&ks->lock); ++ ++ return 0; ++} ++ ++/** ++ * ks_net_stop - close network device ++ * @netdev: The device being closed. ++ * ++ * Called to close down a network device which has been active. Cancell any ++ * work, shutdown the RX and TX process and then place the chip into a low ++ * power state whilst it is not being used. ++ */ ++static int ks_net_stop(struct net_device *netdev) ++{ ++ struct ks_net *ks = netdev_priv(netdev); ++ ++ if (netif_msg_ifdown(ks)) ++ ks_info(ks, "%s: shutting down\n", netdev->name); ++ ++ netif_stop_queue(netdev); ++ ++ kfree(ks->frame_head_info); ++ ++ mutex_lock(&ks->lock); ++ ++ /* turn off the IRQs and ack any outstanding */ ++ ks_wrreg16(ks, KS_IER, 0x0000); ++ ks_wrreg16(ks, KS_ISR, 0xffff); ++ ++ /* shutdown RX process */ ++ ks_wrreg16(ks, KS_RXCR1, 0x0000); ++ ++ /* shutdown TX process */ ++ ks_wrreg16(ks, KS_TXCR, 0x0000); ++ ++ /* set powermode to soft power down to save power */ ++ ks_set_powermode(ks, PMECR_PM_SOFTDOWN); ++ free_irq(ks->irq, netdev); ++ mutex_unlock(&ks->lock); ++ return 0; ++} ++ ++ ++/** ++ * ks_write_qmu - write 1 pkt data to the QMU. ++ * @ks: The chip information ++ * @pdata: buffer address to save 1 pkt ++ * @len: Pkt length in byte ++ * Here is the sequence to write 1 pkt: ++ * 1. set sudo DMA mode ++ * 2. write status/length ++ * 3. write pkt data ++ * 4. reset sudo DMA Mode ++ * 5. reset sudo DMA mode ++ * 6. Wait until pkt is out ++ */ ++static void ks_write_qmu(struct ks_net *ks, u8 *pdata, u16 len) ++{ ++ unsigned fid = ks->fid; ++ ++ fid = ks->fid; ++ ks->fid = (ks->fid + 1) & TXFR_TXFID_MASK; ++ ++ /* reduce the tx interrupt occurrances. */ ++ if (!fid) ++ fid |= TXFR_TXIC; /* irq on completion */ ++ ++ /* start header at txb[0] to align txw entries */ ++ ks->txh.txw[0] = cpu_to_le16(fid); ++ ks->txh.txw[1] = cpu_to_le16(len); ++ ++ /* 1. set sudo-DMA mode */ ++ ks_wrreg8(ks, KS_RXQCR, (ks->rc_rxqcr | RXQCR_SDA) & 0xff); ++ /* 2. write status/lenth info */ ++ ks_outblk(ks, ks->txh.txw, 4); ++ /* 3. write pkt data */ ++ ks_outblk(ks, (u16 *)pdata, ALIGN(len, 4)); ++ /* 4. reset sudo-DMA mode */ ++ ks_wrreg8(ks, KS_RXQCR, ks->rc_rxqcr); ++ /* 5. Enqueue Tx(move the pkt from TX buffer into TXQ) */ ++ ks_wrreg16(ks, KS_TXQCR, TXQCR_METFE); ++ /* 6. wait until TXQCR_METFE is auto-cleared */ ++ while (ks_rdreg16(ks, KS_TXQCR) & TXQCR_METFE) ++ ; ++} ++ ++static void ks_disable_int(struct ks_net *ks) ++{ ++ ks_wrreg16(ks, KS_IER, 0x0000); ++} /* ks_disable_int */ ++ ++static void ks_enable_int(struct ks_net *ks) ++{ ++ ks_wrreg16(ks, KS_IER, ks->rc_ier); ++} /* ks_enable_int */ ++ ++/** ++ * ks_start_xmit - transmit packet ++ * @skb : The buffer to transmit ++ * @netdev : The device used to transmit the packet. ++ * ++ * Called by the network layer to transmit the @skb. ++ * spin_lock_irqsave is required because tx and rx should be mutual exclusive. ++ * So while tx is in-progress, prevent IRQ interrupt from happenning. ++ */ ++static int ks_start_xmit(struct sk_buff *skb, struct net_device *netdev) ++{ ++ int retv = NETDEV_TX_OK; ++ struct ks_net *ks = netdev_priv(netdev); ++ ++ disable_irq(netdev->irq); ++ ks_disable_int(ks); ++ spin_lock(&ks->statelock); ++ ++ /* Extra space are required: ++ * 4 byte for alignment, 4 for status/length, 4 for CRC ++ */ ++ ++ if (likely(ks_tx_fifo_space(ks) >= skb->len + 12)) { ++ ks_write_qmu(ks, skb->data, skb->len); ++ dev_kfree_skb(skb); ++ } else ++ retv = NETDEV_TX_BUSY; ++ spin_unlock(&ks->statelock); ++ ks_enable_int(ks); ++ enable_irq(netdev->irq); ++ return retv; ++} ++ ++/** ++ * ks_start_rx - ready to serve pkts ++ * @ks : The chip information ++ * ++ */ ++static void ks_start_rx(struct ks_net *ks) ++{ ++ u16 cntl; ++ ++ /* Enables QMU Receive (RXCR1). */ ++ cntl = ks_rdreg16(ks, KS_RXCR1); ++ cntl |= RXCR1_RXE ; ++ ks_wrreg16(ks, KS_RXCR1, cntl); ++} /* ks_start_rx */ ++ ++/** ++ * ks_stop_rx - stop to serve pkts ++ * @ks : The chip information ++ * ++ */ ++static void ks_stop_rx(struct ks_net *ks) ++{ ++ u16 cntl; ++ ++ /* Disables QMU Receive (RXCR1). */ ++ cntl = ks_rdreg16(ks, KS_RXCR1); ++ cntl &= ~RXCR1_RXE ; ++ ks_wrreg16(ks, KS_RXCR1, cntl); ++ ++} /* ks_stop_rx */ ++ ++static unsigned long const ethernet_polynomial = 0x04c11db7U; ++ ++static unsigned long ether_gen_crc(int length, u8 *data) ++{ ++ long crc = -1; ++ while (--length >= 0) { ++ u8 current_octet = *data++; ++ int bit; ++ ++ for (bit = 0; bit < 8; bit++, current_octet >>= 1) { ++ crc = (crc << 1) ^ ++ ((crc < 0) ^ (current_octet & 1) ? ++ ethernet_polynomial : 0); ++ } ++ } ++ return (unsigned long)crc; ++} /* ether_gen_crc */ ++ ++/** ++* ks_set_grpaddr - set multicast information ++* @ks : The chip information ++*/ ++ ++static void ks_set_grpaddr(struct ks_net *ks) ++{ ++ u8 i; ++ u32 index, position, value; ++ ++ memset(ks->mcast_bits, 0, sizeof(u8) * HW_MCAST_SIZE); ++ ++ for (i = 0; i < ks->mcast_lst_size; i++) { ++ position = (ether_gen_crc(6, ks->mcast_lst[i]) >> 26) & 0x3f; ++ index = position >> 3; ++ value = 1 << (position & 7); ++ ks->mcast_bits[index] |= (u8)value; ++ } ++ ++ for (i = 0; i < HW_MCAST_SIZE; i++) { ++ if (i & 1) { ++ ks_wrreg16(ks, (u16)((KS_MAHTR0 + i) & ~1), ++ (ks->mcast_bits[i] << 8) | ++ ks->mcast_bits[i - 1]); ++ } ++ } ++} /* ks_set_grpaddr */ ++ ++/* ++* ks_clear_mcast - clear multicast information ++* ++* @ks : The chip information ++* This routine removes all mcast addresses set in the hardware. ++*/ ++ ++static void ks_clear_mcast(struct ks_net *ks) ++{ ++ u16 i, mcast_size; ++ for (i = 0; i < HW_MCAST_SIZE; i++) ++ ks->mcast_bits[i] = 0; ++ ++ mcast_size = HW_MCAST_SIZE >> 2; ++ for (i = 0; i < mcast_size; i++) ++ ks_wrreg16(ks, KS_MAHTR0 + (2*i), 0); ++} ++ ++static void ks_set_promis(struct ks_net *ks, u16 promiscuous_mode) ++{ ++ u16 cntl; ++ ks->promiscuous = promiscuous_mode; ++ ks_stop_rx(ks); /* Stop receiving for reconfiguration */ ++ cntl = ks_rdreg16(ks, KS_RXCR1); ++ ++ cntl &= ~RXCR1_FILTER_MASK; ++ if (promiscuous_mode) ++ /* Enable Promiscuous mode */ ++ cntl |= RXCR1_RXAE | RXCR1_RXINVF; ++ else ++ /* Disable Promiscuous mode (default normal mode) */ ++ cntl |= RXCR1_RXPAFMA; ++ ++ ks_wrreg16(ks, KS_RXCR1, cntl); ++ ++ if (ks->enabled) ++ ks_start_rx(ks); ++ ++} /* ks_set_promis */ ++ ++static void ks_set_mcast(struct ks_net *ks, u16 mcast) ++{ ++ u16 cntl; ++ ++ ks->all_mcast = mcast; ++ ks_stop_rx(ks); /* Stop receiving for reconfiguration */ ++ cntl = ks_rdreg16(ks, KS_RXCR1); ++ cntl &= ~RXCR1_FILTER_MASK; ++ if (mcast) ++ /* Enable "Perfect with Multicast address passed mode" */ ++ cntl |= (RXCR1_RXAE | RXCR1_RXMAFMA | RXCR1_RXPAFMA); ++ else ++ /** ++ * Disable "Perfect with Multicast address passed ++ * mode" (normal mode). ++ */ ++ cntl |= RXCR1_RXPAFMA; ++ ++ ks_wrreg16(ks, KS_RXCR1, cntl); ++ ++ if (ks->enabled) ++ ks_start_rx(ks); ++} /* ks_set_mcast */ ++ ++static void ks_set_rx_mode(struct net_device *netdev) ++{ ++ struct ks_net *ks = netdev_priv(netdev); ++ struct dev_mc_list *ptr; ++ ++ /* Turn on/off promiscuous mode. */ ++ if ((netdev->flags & IFF_PROMISC) == IFF_PROMISC) ++ ks_set_promis(ks, ++ (u16)((netdev->flags & IFF_PROMISC) == IFF_PROMISC)); ++ /* Turn on/off all mcast mode. */ ++ else if ((netdev->flags & IFF_ALLMULTI) == IFF_ALLMULTI) ++ ks_set_mcast(ks, ++ (u16)((netdev->flags & IFF_ALLMULTI) == IFF_ALLMULTI)); ++ else ++ ks_set_promis(ks, false); ++ ++ if ((netdev->flags & IFF_MULTICAST) && netdev->mc_count) { ++ if (netdev->mc_count <= MAX_MCAST_LST) { ++ int i = 0; ++ for (ptr = netdev->mc_list; ptr; ptr = ptr->next) { ++ if (!(*ptr->dmi_addr & 1)) ++ continue; ++ if (i >= MAX_MCAST_LST) ++ break; ++ memcpy(ks->mcast_lst[i++], ptr->dmi_addr, ++ MAC_ADDR_LEN); ++ } ++ ks->mcast_lst_size = (u8)i; ++ ks_set_grpaddr(ks); ++ } else { ++ /** ++ * List too big to support so ++ * turn on all mcast mode. ++ */ ++ ks->mcast_lst_size = MAX_MCAST_LST; ++ ks_set_mcast(ks, true); ++ } ++ } else { ++ ks->mcast_lst_size = 0; ++ ks_clear_mcast(ks); ++ } ++} /* ks_set_rx_mode */ ++ ++static void ks_set_mac(struct ks_net *ks, u8 *data) ++{ ++ u16 *pw = (u16 *)data; ++ u16 w, u; ++ ++ ks_stop_rx(ks); /* Stop receiving for reconfiguration */ ++ ++ u = *pw++; ++ w = ((u & 0xFF) << 8) | ((u >> 8) & 0xFF); ++ ks_wrreg16(ks, KS_MARH, w); ++ ++ u = *pw++; ++ w = ((u & 0xFF) << 8) | ((u >> 8) & 0xFF); ++ ks_wrreg16(ks, KS_MARM, w); ++ ++ u = *pw; ++ w = ((u & 0xFF) << 8) | ((u >> 8) & 0xFF); ++ ks_wrreg16(ks, KS_MARL, w); ++ ++ memcpy(ks->mac_addr, data, 6); ++ ++ if (ks->enabled) ++ ks_start_rx(ks); ++} ++ ++static int ks_set_mac_address(struct net_device *netdev, void *paddr) ++{ ++ struct ks_net *ks = netdev_priv(netdev); ++ struct sockaddr *addr = paddr; ++ u8 *da; ++ ++ memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); ++ ++ da = (u8 *)netdev->dev_addr; ++ ++ ks_set_mac(ks, da); ++ return 0; ++} ++ ++static int ks_net_ioctl(struct net_device *netdev, struct ifreq *req, int cmd) ++{ ++ struct ks_net *ks = netdev_priv(netdev); ++ ++ if (!netif_running(netdev)) ++ return -EINVAL; ++ ++ return generic_mii_ioctl(&ks->mii, if_mii(req), cmd, NULL); ++} ++ ++static const struct net_device_ops ks_netdev_ops = { ++ .ndo_open = ks_net_open, ++ .ndo_stop = ks_net_stop, ++ .ndo_do_ioctl = ks_net_ioctl, ++ .ndo_start_xmit = ks_start_xmit, ++ .ndo_set_mac_address = ks_set_mac_address, ++ .ndo_set_rx_mode = ks_set_rx_mode, ++ .ndo_change_mtu = eth_change_mtu, ++ .ndo_validate_addr = eth_validate_addr, ++}; ++ ++/* ethtool support */ ++ ++static void ks_get_drvinfo(struct net_device *netdev, ++ struct ethtool_drvinfo *di) ++{ ++ strlcpy(di->driver, DRV_NAME, sizeof(di->driver)); ++ strlcpy(di->version, "1.00", sizeof(di->version)); ++ strlcpy(di->bus_info, dev_name(netdev->dev.parent), ++ sizeof(di->bus_info)); ++} ++ ++static u32 ks_get_msglevel(struct net_device *netdev) ++{ ++ struct ks_net *ks = netdev_priv(netdev); ++ return ks->msg_enable; ++} ++ ++static void ks_set_msglevel(struct net_device *netdev, u32 to) ++{ ++ struct ks_net *ks = netdev_priv(netdev); ++ ks->msg_enable = to; ++} ++ ++static int ks_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd) ++{ ++ struct ks_net *ks = netdev_priv(netdev); ++ return mii_ethtool_gset(&ks->mii, cmd); ++} ++ ++static int ks_set_settings(struct net_device *netdev, struct ethtool_cmd *cmd) ++{ ++ struct ks_net *ks = netdev_priv(netdev); ++ return mii_ethtool_sset(&ks->mii, cmd); ++} ++ ++static u32 ks_get_link(struct net_device *netdev) ++{ ++ struct ks_net *ks = netdev_priv(netdev); ++ return mii_link_ok(&ks->mii); ++} ++ ++static int ks_nway_reset(struct net_device *netdev) ++{ ++ struct ks_net *ks = netdev_priv(netdev); ++ return mii_nway_restart(&ks->mii); ++} ++ ++static const struct ethtool_ops ks_ethtool_ops = { ++ .get_drvinfo = ks_get_drvinfo, ++ .get_msglevel = ks_get_msglevel, ++ .set_msglevel = ks_set_msglevel, ++ .get_settings = ks_get_settings, ++ .set_settings = ks_set_settings, ++ .get_link = ks_get_link, ++ .nway_reset = ks_nway_reset, ++}; ++ ++/* MII interface controls */ ++ ++/** ++ * ks_phy_reg - convert MII register into a KS8851 register ++ * @reg: MII register number. ++ * ++ * Return the KS8851 register number for the corresponding MII PHY register ++ * if possible. Return zero if the MII register has no direct mapping to the ++ * KS8851 register set. ++ */ ++static int ks_phy_reg(int reg) ++{ ++ switch (reg) { ++ case MII_BMCR: ++ return KS_P1MBCR; ++ case MII_BMSR: ++ return KS_P1MBSR; ++ case MII_PHYSID1: ++ return KS_PHY1ILR; ++ case MII_PHYSID2: ++ return KS_PHY1IHR; ++ case MII_ADVERTISE: ++ return KS_P1ANAR; ++ case MII_LPA: ++ return KS_P1ANLPR; ++ } ++ ++ return 0x0; ++} ++ ++/** ++ * ks_phy_read - MII interface PHY register read. ++ * @netdev: The network device the PHY is on. ++ * @phy_addr: Address of PHY (ignored as we only have one) ++ * @reg: The register to read. ++ * ++ * This call reads data from the PHY register specified in @reg. Since the ++ * device does not support all the MII registers, the non-existant values ++ * are always returned as zero. ++ * ++ * We return zero for unsupported registers as the MII code does not check ++ * the value returned for any error status, and simply returns it to the ++ * caller. The mii-tool that the driver was tested with takes any -ve error ++ * as real PHY capabilities, thus displaying incorrect data to the user. ++ */ ++static int ks_phy_read(struct net_device *netdev, int phy_addr, int reg) ++{ ++ struct ks_net *ks = netdev_priv(netdev); ++ int ksreg; ++ int result; ++ ++ ksreg = ks_phy_reg(reg); ++ if (!ksreg) ++ return 0x0; /* no error return allowed, so use zero */ ++ ++ mutex_lock(&ks->lock); ++ result = ks_rdreg16(ks, ksreg); ++ mutex_unlock(&ks->lock); ++ ++ return result; ++} ++ ++static void ks_phy_write(struct net_device *netdev, ++ int phy, int reg, int value) ++{ ++ struct ks_net *ks = netdev_priv(netdev); ++ int ksreg; ++ ++ ksreg = ks_phy_reg(reg); ++ if (ksreg) { ++ mutex_lock(&ks->lock); ++ ks_wrreg16(ks, ksreg, value); ++ mutex_unlock(&ks->lock); ++ } ++} ++ ++/** ++ * ks_read_selftest - read the selftest memory info. ++ * @ks: The device state ++ * ++ * Read and check the TX/RX memory selftest information. ++ */ ++static int ks_read_selftest(struct ks_net *ks) ++{ ++ unsigned both_done = MBIR_TXMBF | MBIR_RXMBF; ++ int ret = 0; ++ unsigned rd; ++ ++ rd = ks_rdreg16(ks, KS_MBIR); ++ ++ if ((rd & both_done) != both_done) { ++ ks_warn(ks, "Memory selftest not finished\n"); ++ return 0; ++ } ++ ++ if (rd & MBIR_TXMBFA) { ++ ks_err(ks, "TX memory selftest fails\n"); ++ ret |= 1; ++ } ++ ++ if (rd & MBIR_RXMBFA) { ++ ks_err(ks, "RX memory selftest fails\n"); ++ ret |= 2; ++ } ++ ++ ks_info(ks, "the selftest passes\n"); ++ return ret; ++} ++ ++static void ks_disable(struct ks_net *ks) ++{ ++ u16 w; ++ ++ w = ks_rdreg16(ks, KS_TXCR); ++ ++ /* Disables QMU Transmit (TXCR). */ ++ w &= ~TXCR_TXE; ++ ks_wrreg16(ks, KS_TXCR, w); ++ ++ /* Disables QMU Receive (RXCR1). */ ++ w = ks_rdreg16(ks, KS_RXCR1); ++ w &= ~RXCR1_RXE ; ++ ks_wrreg16(ks, KS_RXCR1, w); ++ ++ ks->enabled = false; ++ ++} /* ks_disable */ ++ ++static void ks_setup(struct ks_net *ks) ++{ ++ u16 w; ++ ++ /** ++ * Configure QMU Transmit ++ */ ++ ++ /* Setup Transmit Frame Data Pointer Auto-Increment (TXFDPR) */ ++ ks_wrreg16(ks, KS_TXFDPR, TXFDPR_TXFPAI); ++ ++ /* Setup Receive Frame Data Pointer Auto-Increment */ ++ ks_wrreg16(ks, KS_RXFDPR, RXFDPR_RXFPAI); ++ ++ /* Setup Receive Frame Threshold - 1 frame (RXFCTFC) */ ++ ks_wrreg16(ks, KS_RXFCTR, 1 & RXFCTR_THRESHOLD_MASK); ++ ++ /* Setup RxQ Command Control (RXQCR) */ ++ ks->rc_rxqcr = RXQCR_CMD_CNTL; ++ ks_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr); ++ ++ /** ++ * set the force mode to half duplex, default is full duplex ++ * because if the auto-negotiation fails, most switch uses ++ * half-duplex. ++ */ ++ ++ w = ks_rdreg16(ks, KS_P1MBCR); ++ w &= ~P1MBCR_FORCE_FDX; ++ ks_wrreg16(ks, KS_P1MBCR, w); ++ ++ w = TXCR_TXFCE | TXCR_TXPE | TXCR_TXCRC | TXCR_TCGIP; ++ ks_wrreg16(ks, KS_TXCR, w); ++ ++ w = RXCR1_RXFCE | RXCR1_RXBE | RXCR1_RXUE; ++ ++ if (ks->promiscuous) /* bPromiscuous */ ++ w |= (RXCR1_RXAE | RXCR1_RXINVF); ++ else if (ks->all_mcast) /* Multicast address passed mode */ ++ w |= (RXCR1_RXAE | RXCR1_RXMAFMA | RXCR1_RXPAFMA); ++ else /* Normal mode */ ++ w |= RXCR1_RXPAFMA; ++ ++ ks_wrreg16(ks, KS_RXCR1, w); ++} /*ks_setup */ ++ ++ ++static void ks_setup_int(struct ks_net *ks) ++{ ++ ks->rc_ier = 0x00; ++ /* Clear the interrupts status of the hardware. */ ++ ks_wrreg16(ks, KS_ISR, 0xffff); ++ ++ /* Enables the interrupts of the hardware. */ ++ ks->rc_ier = (IRQ_LCI | IRQ_TXI | IRQ_RXI); ++} /* ks_setup_int */ ++ ++void ks_enable(struct ks_net *ks) ++{ ++ u16 w; ++ ++ w = ks_rdreg16(ks, KS_TXCR); ++ /* Enables QMU Transmit (TXCR). */ ++ ks_wrreg16(ks, KS_TXCR, w | TXCR_TXE); ++ ++ /* ++ * RX Frame Count Threshold Enable and Auto-Dequeue RXQ Frame ++ * Enable ++ */ ++ ++ w = ks_rdreg16(ks, KS_RXQCR); ++ ks_wrreg16(ks, KS_RXQCR, w | RXQCR_RXFCTE); ++ ++ /* Enables QMU Receive (RXCR1). */ ++ w = ks_rdreg16(ks, KS_RXCR1); ++ ks_wrreg16(ks, KS_RXCR1, w | RXCR1_RXE); ++ ks->enabled = true; ++} /* ks_enable */ ++ ++static int ks_hw_init(struct ks_net *ks) ++{ ++ ks->promiscuous = 0; ++ ks->all_mcast = 0; ++ ks->mcast_lst_size = 0; ++ ++ ks->frame_head_info = (struct type_frame_head *) \ ++ MALLOC(sizeof(struct type_frame_head) * MAX_RECV_FRAMES); ++ if (!ks->frame_head_info) { ++ printk(KERN_ERR "Error: Fail to allocate frame memory\n"); ++ return false; ++ } ++ ++ ks_set_mac(ks, KS_DEFAULT_MAC_ADDRESS); ++ return true; ++} ++ ++ ++static int __devinit ks8851_probe(struct platform_device *pdev) ++{ ++ int err = -ENOMEM; ++ struct resource *io_d, *io_c; ++ struct net_device *netdev; ++ struct ks_net *ks; ++ u16 id, data; ++ ++ io_d = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ io_c = platform_get_resource(pdev, IORESOURCE_MEM, 1); ++ ++ if (!request_mem_region(io_d->start, resource_size(io_d), DRV_NAME)) ++ goto err_mem_region; ++ ++ if (!request_mem_region(io_c->start, resource_size(io_c), DRV_NAME)) ++ goto err_mem_region1; ++ ++ netdev = alloc_etherdev(sizeof(struct ks_net)); ++ if (!netdev) ++ goto err_alloc_etherdev; ++ ++ SET_NETDEV_DEV(netdev, &pdev->dev); ++ ++ ks = netdev_priv(netdev); ++ ks->netdev = netdev; ++ ks->hw_addr = ioremap(io_d->start, resource_size(io_d)); ++ ++ if (!ks->hw_addr) ++ goto err_ioremap; ++ ++ ks->hw_addr_cmd = ioremap(io_c->start, resource_size(io_c)); ++ if (!ks->hw_addr_cmd) ++ goto err_ioremap1; ++ ++ ks->irq = platform_get_irq(pdev, 0); ++ ++ if (ks->irq < 0) { ++ err = ks->irq; ++ goto err_get_irq; ++ } ++ ++ ks->pdev = pdev; ++ ++ mutex_init(&ks->lock); ++ spin_lock_init(&ks->statelock); ++ ++ netdev->netdev_ops = &ks_netdev_ops; ++ netdev->ethtool_ops = &ks_ethtool_ops; ++ ++ /* setup mii state */ ++ ks->mii.dev = netdev; ++ ks->mii.phy_id = 1, ++ ks->mii.phy_id_mask = 1; ++ ks->mii.reg_num_mask = 0xf; ++ ks->mii.mdio_read = ks_phy_read; ++ ks->mii.mdio_write = ks_phy_write; ++ ++ ks_info(ks, "message enable is %d\n", msg_enable); ++ /* set the default message enable */ ++ ks->msg_enable = netif_msg_init(msg_enable, (NETIF_MSG_DRV | ++ NETIF_MSG_PROBE | ++ NETIF_MSG_LINK)); ++ ks_read_config(ks); ++ ++ /* simple check for a valid chip being connected to the bus */ ++ if ((ks_rdreg16(ks, KS_CIDER) & ~CIDER_REV_MASK) != CIDER_ID) { ++ ks_err(ks, "failed to read device ID\n"); ++ err = -ENODEV; ++ goto err_register; ++ } ++ ++ if (ks_read_selftest(ks)) { ++ ks_err(ks, "failed to read device ID\n"); ++ err = -ENODEV; ++ goto err_register; ++ } ++ ++ err = register_netdev(netdev); ++ if (err) ++ goto err_register; ++ ++ platform_set_drvdata(pdev, netdev); ++ ++ ks_soft_reset(ks, GRR_GSR); ++ ks_hw_init(ks); ++ ks_disable(ks); ++ ks_setup(ks); ++ ks_setup_int(ks); ++ ks_enable_int(ks); ++ ks_enable(ks); ++ memcpy(netdev->dev_addr, ks->mac_addr, 6); ++ ++ data = ks_rdreg16(ks, KS_OBCR); ++ ks_wrreg16(ks, KS_OBCR, data | OBCR_ODS_16MA); ++ ++ /** ++ * If you want to use the default MAC addr, ++ * comment out the 2 functions below. ++ */ ++ ++ random_ether_addr(netdev->dev_addr); ++ ks_set_mac(ks, netdev->dev_addr); ++ ++ id = ks_rdreg16(ks, KS_CIDER); ++ ++ printk(KERN_INFO DRV_NAME ++ " Found chip, family: 0x%x, id: 0x%x, rev: 0x%x\n", ++ (id >> 8) & 0xff, (id >> 4) & 0xf, (id >> 1) & 0x7); ++ return 0; ++ ++err_register: ++err_get_irq: ++ iounmap(ks->hw_addr_cmd); ++err_ioremap1: ++ iounmap(ks->hw_addr); ++err_ioremap: ++ free_netdev(netdev); ++err_alloc_etherdev: ++ release_mem_region(io_c->start, resource_size(io_c)); ++err_mem_region1: ++ release_mem_region(io_d->start, resource_size(io_d)); ++err_mem_region: ++ return err; ++} ++ ++static int __devexit ks8851_remove(struct platform_device *pdev) ++{ ++ struct net_device *netdev = platform_get_drvdata(pdev); ++ struct ks_net *ks = netdev_priv(netdev); ++ struct resource *iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ ++ unregister_netdev(netdev); ++ iounmap(ks->hw_addr); ++ free_netdev(netdev); ++ release_mem_region(iomem->start, resource_size(iomem)); ++ platform_set_drvdata(pdev, NULL); ++ return 0; ++ ++} ++ ++static struct platform_driver ks8851_platform_driver = { ++ .driver = { ++ .name = DRV_NAME, ++ .owner = THIS_MODULE, ++ }, ++ .probe = ks8851_probe, ++ .remove = __devexit_p(ks8851_remove), ++}; ++ ++static int __init ks8851_init(void) ++{ ++ return platform_driver_register(&ks8851_platform_driver); ++} ++ ++static void __exit ks8851_exit(void) ++{ ++ platform_driver_unregister(&ks8851_platform_driver); ++} ++ ++module_init(ks8851_init); ++module_exit(ks8851_exit); ++ ++MODULE_DESCRIPTION("KS8851 MLL Network driver"); ++MODULE_AUTHOR("David Choi <david.choi@micrel.com>"); ++MODULE_LICENSE("GPL"); ++module_param_named(message, msg_enable, int, 0); ++MODULE_PARM_DESC(message, "Message verbosity level (0=none, 31=all)"); ++ +--- a/drivers/net/Makefile ++++ b/drivers/net/Makefile +@@ -89,6 +89,7 @@ obj-$(CONFIG_SKY2) += sky2.o + obj-$(CONFIG_SKFP) += skfp/ + obj-$(CONFIG_KS8842) += ks8842.o + obj-$(CONFIG_KS8851) += ks8851.o ++obj-$(CONFIG_KS8851_MLL) += ks8851_mll.o + obj-$(CONFIG_VIA_RHINE) += via-rhine.o + obj-$(CONFIG_VIA_VELOCITY) += via-velocity.o + obj-$(CONFIG_ADAPTEC_STARFIRE) += starfire.o @@ -280,7 +280,7 @@ usb/usb-fix-sysfs-paths-in-documentation.patch # for after .31: led_classdev.sysfs-name.patch - +ks8851-ethernet-network-driver.patch # tty stuff still under work #tty.work/tty-usb-cleanup-open @@ -1 +1 @@ -2.6.31-git4 +2.6.31-git5 |