diff options
Diffstat (limited to 'drivers/net/ks8842.c')
| -rw-r--r-- | drivers/net/ks8842.c | 730 |
1 files changed, 0 insertions, 730 deletions
diff --git a/drivers/net/ks8842.c b/drivers/net/ks8842.c deleted file mode 100644 index 5c45cb58d02..00000000000 --- a/drivers/net/ks8842.c +++ /dev/null @@ -1,730 +0,0 @@ -/* - * ks8842_main.c timberdale KS8842 ethernet driver - * Copyright (c) 2009 Intel Corporation - * - * 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: - * The Micrel KS8842 behind the timberdale FPGA - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/ethtool.h> - -#define DRV_NAME "ks8842" - -/* Timberdale specific Registers */ -#define REG_TIMB_RST 0x1c - -/* KS8842 registers */ - -#define REG_SELECT_BANK 0x0e - -/* bank 0 registers */ -#define REG_QRFCR 0x04 - -/* bank 2 registers */ -#define REG_MARL 0x00 -#define REG_MARM 0x02 -#define REG_MARH 0x04 - -/* bank 3 registers */ -#define REG_GRR 0x06 - -/* bank 16 registers */ -#define REG_TXCR 0x00 -#define REG_TXSR 0x02 -#define REG_RXCR 0x04 -#define REG_TXMIR 0x08 -#define REG_RXMIR 0x0A - -/* bank 17 registers */ -#define REG_TXQCR 0x00 -#define REG_RXQCR 0x02 -#define REG_TXFDPR 0x04 -#define REG_RXFDPR 0x06 -#define REG_QMU_DATA_LO 0x08 -#define REG_QMU_DATA_HI 0x0A - -/* bank 18 registers */ -#define REG_IER 0x00 -#define IRQ_LINK_CHANGE 0x8000 -#define IRQ_TX 0x4000 -#define IRQ_RX 0x2000 -#define IRQ_RX_OVERRUN 0x0800 -#define IRQ_TX_STOPPED 0x0200 -#define IRQ_RX_STOPPED 0x0100 -#define IRQ_RX_ERROR 0x0080 -#define ENABLED_IRQS (IRQ_LINK_CHANGE | IRQ_TX | IRQ_RX | IRQ_RX_STOPPED | \ - IRQ_TX_STOPPED | IRQ_RX_OVERRUN | IRQ_RX_ERROR) -#define REG_ISR 0x02 -#define REG_RXSR 0x04 -#define RXSR_VALID 0x8000 -#define RXSR_BROADCAST 0x80 -#define RXSR_MULTICAST 0x40 -#define RXSR_UNICAST 0x20 -#define RXSR_FRAMETYPE 0x08 -#define RXSR_TOO_LONG 0x04 -#define RXSR_RUNT 0x02 -#define RXSR_CRC_ERROR 0x01 -#define RXSR_ERROR (RXSR_TOO_LONG | RXSR_RUNT | RXSR_CRC_ERROR) - -/* bank 32 registers */ -#define REG_SW_ID_AND_ENABLE 0x00 -#define REG_SGCR1 0x02 -#define REG_SGCR2 0x04 -#define REG_SGCR3 0x06 - -/* bank 39 registers */ -#define REG_MACAR1 0x00 -#define REG_MACAR2 0x02 -#define REG_MACAR3 0x04 - -/* bank 45 registers */ -#define REG_P1MBCR 0x00 -#define REG_P1MBSR 0x02 - -/* bank 46 registers */ -#define REG_P2MBCR 0x00 -#define REG_P2MBSR 0x02 - -/* bank 48 registers */ -#define REG_P1CR2 0x02 - -/* bank 49 registers */ -#define REG_P1CR4 0x02 -#define REG_P1SR 0x04 - -struct ks8842_adapter { - void __iomem *hw_addr; - int irq; - struct tasklet_struct tasklet; - spinlock_t lock; /* spinlock to be interrupt safe */ - struct platform_device *pdev; -}; - -static inline void ks8842_select_bank(struct ks8842_adapter *adapter, u16 bank) -{ - iowrite16(bank, adapter->hw_addr + REG_SELECT_BANK); -} - -static inline void ks8842_write8(struct ks8842_adapter *adapter, u16 bank, - u8 value, int offset) -{ - ks8842_select_bank(adapter, bank); - iowrite8(value, adapter->hw_addr + offset); -} - -static inline void ks8842_write16(struct ks8842_adapter *adapter, u16 bank, - u16 value, int offset) -{ - ks8842_select_bank(adapter, bank); - iowrite16(value, adapter->hw_addr + offset); -} - -static inline void ks8842_enable_bits(struct ks8842_adapter *adapter, u16 bank, - u16 bits, int offset) -{ - u16 reg; - ks8842_select_bank(adapter, bank); - reg = ioread16(adapter->hw_addr + offset); - reg |= bits; - iowrite16(reg, adapter->hw_addr + offset); -} - -static inline void ks8842_clear_bits(struct ks8842_adapter *adapter, u16 bank, - u16 bits, int offset) -{ - u16 reg; - ks8842_select_bank(adapter, bank); - reg = ioread16(adapter->hw_addr + offset); - reg &= ~bits; - iowrite16(reg, adapter->hw_addr + offset); -} - -static inline void ks8842_write32(struct ks8842_adapter *adapter, u16 bank, - u32 value, int offset) -{ - ks8842_select_bank(adapter, bank); - iowrite32(value, adapter->hw_addr + offset); -} - -static inline u8 ks8842_read8(struct ks8842_adapter *adapter, u16 bank, - int offset) -{ - ks8842_select_bank(adapter, bank); - return ioread8(adapter->hw_addr + offset); -} - -static inline u16 ks8842_read16(struct ks8842_adapter *adapter, u16 bank, - int offset) -{ - ks8842_select_bank(adapter, bank); - return ioread16(adapter->hw_addr + offset); -} - -static inline u32 ks8842_read32(struct ks8842_adapter *adapter, u16 bank, - int offset) -{ - ks8842_select_bank(adapter, bank); - return ioread32(adapter->hw_addr + offset); -} - -static void ks8842_reset(struct ks8842_adapter *adapter) -{ - /* The KS8842 goes haywire when doing softare reset - * a work around in the timberdale IP is implemented to - * do a hardware reset instead - ks8842_write16(adapter, 3, 1, REG_GRR); - msleep(10); - iowrite16(0, adapter->hw_addr + REG_GRR); - */ - iowrite16(32, adapter->hw_addr + REG_SELECT_BANK); - iowrite32(0x1, adapter->hw_addr + REG_TIMB_RST); - msleep(20); -} - -static void ks8842_update_link_status(struct net_device *netdev, - struct ks8842_adapter *adapter) -{ - /* check the status of the link */ - if (ks8842_read16(adapter, 45, REG_P1MBSR) & 0x4) { - netif_carrier_on(netdev); - netif_wake_queue(netdev); - } else { - netif_stop_queue(netdev); - netif_carrier_off(netdev); - } -} - -static void ks8842_enable_tx(struct ks8842_adapter *adapter) -{ - ks8842_enable_bits(adapter, 16, 0x01, REG_TXCR); -} - -static void ks8842_disable_tx(struct ks8842_adapter *adapter) -{ - ks8842_clear_bits(adapter, 16, 0x01, REG_TXCR); -} - -static void ks8842_enable_rx(struct ks8842_adapter *adapter) -{ - ks8842_enable_bits(adapter, 16, 0x01, REG_RXCR); -} - -static void ks8842_disable_rx(struct ks8842_adapter *adapter) -{ - ks8842_clear_bits(adapter, 16, 0x01, REG_RXCR); -} - -static void ks8842_reset_hw(struct ks8842_adapter *adapter) -{ - /* reset the HW */ - ks8842_reset(adapter); - - /* Enable QMU Transmit flow control / transmit padding / Transmit CRC */ - ks8842_write16(adapter, 16, 0x000E, REG_TXCR); - - /* enable the receiver, uni + multi + broadcast + flow ctrl - + crc strip */ - ks8842_write16(adapter, 16, 0x8 | 0x20 | 0x40 | 0x80 | 0x400, - REG_RXCR); - - /* TX frame pointer autoincrement */ - ks8842_write16(adapter, 17, 0x4000, REG_TXFDPR); - - /* RX frame pointer autoincrement */ - ks8842_write16(adapter, 17, 0x4000, REG_RXFDPR); - - /* RX 2 kb high watermark */ - ks8842_write16(adapter, 0, 0x1000, REG_QRFCR); - - /* aggresive back off in half duplex */ - ks8842_enable_bits(adapter, 32, 1 << 8, REG_SGCR1); - - /* enable no excessive collison drop */ - ks8842_enable_bits(adapter, 32, 1 << 3, REG_SGCR2); - - /* Enable port 1 force flow control / back pressure / transmit / recv */ - ks8842_write16(adapter, 48, 0x1E07, REG_P1CR2); - - /* restart port auto-negotiation */ - ks8842_enable_bits(adapter, 49, 1 << 13, REG_P1CR4); - /* only advertise 10Mbps */ - ks8842_clear_bits(adapter, 49, 3 << 2, REG_P1CR4); - - /* Enable the transmitter */ - ks8842_enable_tx(adapter); - - /* Enable the receiver */ - ks8842_enable_rx(adapter); - - /* clear all interrupts */ - ks8842_write16(adapter, 18, 0xffff, REG_ISR); - - /* enable interrupts */ - ks8842_write16(adapter, 18, ENABLED_IRQS, REG_IER); - - /* enable the switch */ - ks8842_write16(adapter, 32, 0x1, REG_SW_ID_AND_ENABLE); -} - -static void ks8842_read_mac_addr(struct ks8842_adapter *adapter, u8 *dest) -{ - int i; - u16 mac; - - for (i = 0; i < ETH_ALEN; i++) - dest[ETH_ALEN - i - 1] = ks8842_read8(adapter, 2, REG_MARL + i); - - /* make sure the switch port uses the same MAC as the QMU */ - mac = ks8842_read16(adapter, 2, REG_MARL); - ks8842_write16(adapter, 39, mac, REG_MACAR1); - mac = ks8842_read16(adapter, 2, REG_MARM); - ks8842_write16(adapter, 39, mac, REG_MACAR2); - mac = ks8842_read16(adapter, 2, REG_MARH); - ks8842_write16(adapter, 39, mac, REG_MACAR3); -} - -static inline u16 ks8842_tx_fifo_space(struct ks8842_adapter *adapter) -{ - return ks8842_read16(adapter, 16, REG_TXMIR) & 0x1fff; -} - -static int ks8842_tx_frame(struct sk_buff *skb, struct net_device *netdev) -{ - struct ks8842_adapter *adapter = netdev_priv(netdev); - int len = skb->len; - u32 *ptr = (u32 *)skb->data; - u32 ctrl; - - dev_dbg(&adapter->pdev->dev, - "%s: len %u head %p data %p tail %p end %p\n", - __func__, skb->len, skb->head, skb->data, - skb_tail_pointer(skb), skb_end_pointer(skb)); - - /* check FIFO buffer space, we need space for CRC and command bits */ - if (ks8842_tx_fifo_space(adapter) < len + 8) - return NETDEV_TX_BUSY; - - /* the control word, enable IRQ, port 1 and the length */ - ctrl = 0x8000 | 0x100 | (len << 16); - ks8842_write32(adapter, 17, ctrl, REG_QMU_DATA_LO); - - netdev->stats.tx_bytes += len; - - /* copy buffer */ - while (len > 0) { - iowrite32(*ptr, adapter->hw_addr + REG_QMU_DATA_LO); - len -= sizeof(u32); - ptr++; - } - - /* enqueue packet */ - ks8842_write16(adapter, 17, 1, REG_TXQCR); - - dev_kfree_skb(skb); - - return NETDEV_TX_OK; -} - -static void ks8842_rx_frame(struct net_device *netdev, - struct ks8842_adapter *adapter) -{ - u32 status = ks8842_read32(adapter, 17, REG_QMU_DATA_LO); - int len = (status >> 16) & 0x7ff; - - status &= 0xffff; - - dev_dbg(&adapter->pdev->dev, "%s - rx_data: status: %x\n", - __func__, status); - - /* check the status */ - if ((status & RXSR_VALID) && !(status & RXSR_ERROR)) { - struct sk_buff *skb = netdev_alloc_skb_ip_align(netdev, len); - - dev_dbg(&adapter->pdev->dev, "%s, got package, len: %d\n", - __func__, len); - if (skb) { - u32 *data; - - netdev->stats.rx_packets++; - netdev->stats.rx_bytes += len; - if (status & RXSR_MULTICAST) - netdev->stats.multicast++; - - data = (u32 *)skb_put(skb, len); - - ks8842_select_bank(adapter, 17); - while (len > 0) { - *data++ = ioread32(adapter->hw_addr + - REG_QMU_DATA_LO); - len -= sizeof(u32); - } - - skb->protocol = eth_type_trans(skb, netdev); - netif_rx(skb); - } else - netdev->stats.rx_dropped++; - } else { - dev_dbg(&adapter->pdev->dev, "RX error, status: %x\n", status); - netdev->stats.rx_errors++; - if (status & RXSR_TOO_LONG) - netdev->stats.rx_length_errors++; - if (status & RXSR_CRC_ERROR) - netdev->stats.rx_crc_errors++; - if (status & RXSR_RUNT) - netdev->stats.rx_frame_errors++; - } - - /* set high watermark to 3K */ - ks8842_clear_bits(adapter, 0, 1 << 12, REG_QRFCR); - - /* release the frame */ - ks8842_write16(adapter, 17, 0x01, REG_RXQCR); - - /* set high watermark to 2K */ - ks8842_enable_bits(adapter, 0, 1 << 12, REG_QRFCR); -} - -void ks8842_handle_rx(struct net_device *netdev, struct ks8842_adapter *adapter) -{ - u16 rx_data = ks8842_read16(adapter, 16, REG_RXMIR) & 0x1fff; - dev_dbg(&adapter->pdev->dev, "%s Entry - rx_data: %d\n", - __func__, rx_data); - while (rx_data) { - ks8842_rx_frame(netdev, adapter); - rx_data = ks8842_read16(adapter, 16, REG_RXMIR) & 0x1fff; - } -} - -void ks8842_handle_tx(struct net_device *netdev, struct ks8842_adapter *adapter) -{ - u16 sr = ks8842_read16(adapter, 16, REG_TXSR); - dev_dbg(&adapter->pdev->dev, "%s - entry, sr: %x\n", __func__, sr); - netdev->stats.tx_packets++; - if (netif_queue_stopped(netdev)) - netif_wake_queue(netdev); -} - -void ks8842_handle_rx_overrun(struct net_device *netdev, - struct ks8842_adapter *adapter) -{ - dev_dbg(&adapter->pdev->dev, "%s: entry\n", __func__); - netdev->stats.rx_errors++; - netdev->stats.rx_fifo_errors++; -} - -void ks8842_tasklet(unsigned long arg) -{ - struct net_device *netdev = (struct net_device *)arg; - struct ks8842_adapter *adapter = netdev_priv(netdev); - u16 isr; - unsigned long flags; - u16 entry_bank; - - /* read current bank to be able to set it back */ - spin_lock_irqsave(&adapter->lock, flags); - entry_bank = ioread16(adapter->hw_addr + REG_SELECT_BANK); - spin_unlock_irqrestore(&adapter->lock, flags); - - isr = ks8842_read16(adapter, 18, REG_ISR); - dev_dbg(&adapter->pdev->dev, "%s - ISR: 0x%x\n", __func__, isr); - - /* Ack */ - ks8842_write16(adapter, 18, isr, REG_ISR); - - if (!netif_running(netdev)) - return; - - if (isr & IRQ_LINK_CHANGE) - ks8842_update_link_status(netdev, adapter); - - if (isr & (IRQ_RX | IRQ_RX_ERROR)) - ks8842_handle_rx(netdev, adapter); - - if (isr & IRQ_TX) - ks8842_handle_tx(netdev, adapter); - - if (isr & IRQ_RX_OVERRUN) - ks8842_handle_rx_overrun(netdev, adapter); - - if (isr & IRQ_TX_STOPPED) { - ks8842_disable_tx(adapter); - ks8842_enable_tx(adapter); - } - - if (isr & IRQ_RX_STOPPED) { - ks8842_disable_rx(adapter); - ks8842_enable_rx(adapter); - } - - /* re-enable interrupts, put back the bank selection register */ - spin_lock_irqsave(&adapter->lock, flags); - ks8842_write16(adapter, 18, ENABLED_IRQS, REG_IER); - iowrite16(entry_bank, adapter->hw_addr + REG_SELECT_BANK); - spin_unlock_irqrestore(&adapter->lock, flags); -} - -static irqreturn_t ks8842_irq(int irq, void *devid) -{ - struct ks8842_adapter *adapter = devid; - u16 isr; - u16 entry_bank = ioread16(adapter->hw_addr + REG_SELECT_BANK); - irqreturn_t ret = IRQ_NONE; - - isr = ks8842_read16(adapter, 18, REG_ISR); - dev_dbg(&adapter->pdev->dev, "%s - ISR: 0x%x\n", __func__, isr); - - if (isr) { - /* disable IRQ */ - ks8842_write16(adapter, 18, 0x00, REG_IER); - - /* schedule tasklet */ - tasklet_schedule(&adapter->tasklet); - - ret = IRQ_HANDLED; - } - - iowrite16(entry_bank, adapter->hw_addr + REG_SELECT_BANK); - - return ret; -} - - -/* Netdevice operations */ - -static int ks8842_open(struct net_device *netdev) -{ - struct ks8842_adapter *adapter = netdev_priv(netdev); - int err; - - dev_dbg(&adapter->pdev->dev, "%s - entry\n", __func__); - - /* reset the HW */ - ks8842_reset_hw(adapter); - - ks8842_update_link_status(netdev, adapter); - - err = request_irq(adapter->irq, ks8842_irq, IRQF_SHARED, DRV_NAME, - adapter); - if (err) { - printk(KERN_ERR "Failed to request IRQ: %d: %d\n", - adapter->irq, err); - return err; - } - - return 0; -} - -static int ks8842_close(struct net_device *netdev) -{ - struct ks8842_adapter *adapter = netdev_priv(netdev); - - dev_dbg(&adapter->pdev->dev, "%s - entry\n", __func__); - - /* free the irq */ - free_irq(adapter->irq, adapter); - - /* disable the switch */ - ks8842_write16(adapter, 32, 0x0, REG_SW_ID_AND_ENABLE); - - return 0; -} - -static netdev_tx_t ks8842_xmit_frame(struct sk_buff *skb, - struct net_device *netdev) -{ - int ret; - struct ks8842_adapter *adapter = netdev_priv(netdev); - - dev_dbg(&adapter->pdev->dev, "%s: entry\n", __func__); - - ret = ks8842_tx_frame(skb, netdev); - - if (ks8842_tx_fifo_space(adapter) < netdev->mtu + 8) - netif_stop_queue(netdev); - - return ret; -} - -static int ks8842_set_mac(struct net_device *netdev, void *p) -{ - struct ks8842_adapter *adapter = netdev_priv(netdev); - unsigned long flags; - struct sockaddr *addr = p; - char *mac = (u8 *)addr->sa_data; - int i; - - dev_dbg(&adapter->pdev->dev, "%s: entry\n", __func__); - - if (!is_valid_ether_addr(addr->sa_data)) - return -EADDRNOTAVAIL; - - memcpy(netdev->dev_addr, mac, netdev->addr_len); - - spin_lock_irqsave(&adapter->lock, flags); - for (i = 0; i < ETH_ALEN; i++) { - ks8842_write8(adapter, 2, mac[ETH_ALEN - i - 1], REG_MARL + i); - ks8842_write8(adapter, 39, mac[ETH_ALEN - i - 1], - REG_MACAR1 + i); - } - spin_unlock_irqrestore(&adapter->lock, flags); - return 0; -} - -static void ks8842_tx_timeout(struct net_device *netdev) -{ - struct ks8842_adapter *adapter = netdev_priv(netdev); - unsigned long flags; - - dev_dbg(&adapter->pdev->dev, "%s: entry\n", __func__); - - spin_lock_irqsave(&adapter->lock, flags); - /* disable interrupts */ - ks8842_write16(adapter, 18, 0, REG_IER); - ks8842_write16(adapter, 18, 0xFFFF, REG_ISR); - spin_unlock_irqrestore(&adapter->lock, flags); - - ks8842_reset_hw(adapter); - - ks8842_update_link_status(netdev, adapter); -} - -static const struct net_device_ops ks8842_netdev_ops = { - .ndo_open = ks8842_open, - .ndo_stop = ks8842_close, - .ndo_start_xmit = ks8842_xmit_frame, - .ndo_set_mac_address = ks8842_set_mac, - .ndo_tx_timeout = ks8842_tx_timeout, - .ndo_validate_addr = eth_validate_addr -}; - -static const struct ethtool_ops ks8842_ethtool_ops = { - .get_link = ethtool_op_get_link, -}; - -static int __devinit ks8842_probe(struct platform_device *pdev) -{ - int err = -ENOMEM; - struct resource *iomem; - struct net_device *netdev; - struct ks8842_adapter *adapter; - u16 id; - - iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!request_mem_region(iomem->start, resource_size(iomem), DRV_NAME)) - goto err_mem_region; - - netdev = alloc_etherdev(sizeof(struct ks8842_adapter)); - if (!netdev) - goto err_alloc_etherdev; - - SET_NETDEV_DEV(netdev, &pdev->dev); - - adapter = netdev_priv(netdev); - adapter->hw_addr = ioremap(iomem->start, resource_size(iomem)); - if (!adapter->hw_addr) - goto err_ioremap; - - adapter->irq = platform_get_irq(pdev, 0); - if (adapter->irq < 0) { - err = adapter->irq; - goto err_get_irq; - } - - adapter->pdev = pdev; - - tasklet_init(&adapter->tasklet, ks8842_tasklet, (unsigned long)netdev); - spin_lock_init(&adapter->lock); - - netdev->netdev_ops = &ks8842_netdev_ops; - netdev->ethtool_ops = &ks8842_ethtool_ops; - - ks8842_read_mac_addr(adapter, netdev->dev_addr); - - id = ks8842_read16(adapter, 32, REG_SW_ID_AND_ENABLE); - - strcpy(netdev->name, "eth%d"); - err = register_netdev(netdev); - if (err) - goto err_register; - - platform_set_drvdata(pdev, netdev); - - 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(adapter->hw_addr); -err_ioremap: - free_netdev(netdev); -err_alloc_etherdev: - release_mem_region(iomem->start, resource_size(iomem)); -err_mem_region: - return err; -} - -static int __devexit ks8842_remove(struct platform_device *pdev) -{ - struct net_device *netdev = platform_get_drvdata(pdev); - struct ks8842_adapter *adapter = netdev_priv(netdev); - struct resource *iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - - unregister_netdev(netdev); - tasklet_kill(&adapter->tasklet); - iounmap(adapter->hw_addr); - free_netdev(netdev); - release_mem_region(iomem->start, resource_size(iomem)); - platform_set_drvdata(pdev, NULL); - return 0; -} - - -static struct platform_driver ks8842_platform_driver = { - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - }, - .probe = ks8842_probe, - .remove = ks8842_remove, -}; - -static int __init ks8842_init(void) -{ - return platform_driver_register(&ks8842_platform_driver); -} - -static void __exit ks8842_exit(void) -{ - platform_driver_unregister(&ks8842_platform_driver); -} - -module_init(ks8842_init); -module_exit(ks8842_exit); - -MODULE_DESCRIPTION("Timberdale KS8842 ethernet driver"); -MODULE_AUTHOR("Mocean Laboratories <info@mocean-labs.com>"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:ks8842"); - |