+++ /dev/null
-/**************************************************************************
- *
- * BRIEF MODULE DESCRIPTION
- * Definitions for IDT RC32434 on-chip ethernet controller.
- *
- * Copyright 2004 IDT Inc. (rischelp@idt.com)
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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.
- *
- * 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.
- *
- *
- **************************************************************************
- * May 2004 rkt, neb
- *
- * Initial Release
- *
- * Aug 2004
- *
- * Added NAPI
- *
- **************************************************************************
- */
-
-
-#include <asm/idt-boards/rc32434/rc32434.h>
-#include <asm/idt-boards/rc32434/rc32434_dma_v.h>
-#include <asm/idt-boards/rc32434/rc32434_eth_v.h>
-
-#define RC32434_DEBUG 2
-//#define RC32434_PROC_DEBUG
-#undef RC32434_DEBUG
-
-#ifdef RC32434_DEBUG
-
-/* use 0 for production, 1 for verification, >2 for debug */
-static int rc32434_debug = RC32434_DEBUG;
-#define ASSERT(expr) \
- if(!(expr)) { \
- printk( "Assertion failed! %s,%s,%s,line=%d\n", \
- #expr,__FILE__,__FUNCTION__,__LINE__); }
-#define DBG(lvl, format, arg...) if (rc32434_debug > lvl) printk(KERN_INFO "%s: " format, dev->name , ## arg)
-#else
-#define ASSERT(expr) do {} while (0)
-#define DBG(lvl, format, arg...) do {} while (0)
-#endif
-
-#define INFO(format, arg...) printk(KERN_INFO "%s: " format, dev->name , ## arg)
-#define ERR(format, arg...) printk(KERN_ERR "%s: " format, dev->name , ## arg)
-#define WARN(format, arg...) printk(KERN_WARNING "%s: " format, dev->name , ## arg)
-
-#define ETH0_DMA_RX_IRQ GROUP1_IRQ_BASE + 0
-#define ETH0_DMA_TX_IRQ GROUP1_IRQ_BASE + 1
-#define ETH0_RX_OVR_IRQ GROUP3_IRQ_BASE + 9
-#define ETH0_TX_UND_IRQ GROUP3_IRQ_BASE + 10
-
-#define ETH0_RX_DMA_ADDR (DMA0_PhysicalAddress + 0*DMA_CHAN_OFFSET)
-#define ETH0_TX_DMA_ADDR (DMA0_PhysicalAddress + 1*DMA_CHAN_OFFSET)
-
-/* the following must be powers of two */
-#ifdef CONFIG_IDT_USE_NAPI
-#define RC32434_NUM_RDS 64 /* number of receive descriptors */
-#define RC32434_NUM_TDS 64 /* number of transmit descriptors */
-#else
-#define RC32434_NUM_RDS 128 /* number of receive descriptors */
-#define RC32434_NUM_TDS 128 /* number of transmit descriptors */
-#endif
-
-#define RC32434_RBSIZE 1536 /* size of one resource buffer = Ether MTU */
-#define RC32434_RDS_MASK (RC32434_NUM_RDS-1)
-#define RC32434_TDS_MASK (RC32434_NUM_TDS-1)
-#define RD_RING_SIZE (RC32434_NUM_RDS * sizeof(struct DMAD_s))
-#define TD_RING_SIZE (RC32434_NUM_TDS * sizeof(struct DMAD_s))
-
-#define RC32434_TX_TIMEOUT HZ * 100
-
-#define rc32434_eth0_regs ((ETH_t)(ETH0_VirtualAddress))
-#define rc32434_eth1_regs ((ETH_t)(ETH1_VirtualAddress))
-
-enum status { filled, empty};
-#define IS_DMA_FINISHED(X) (((X) & (DMAD_f_m)) != 0)
-#define IS_DMA_DONE(X) (((X) & (DMAD_d_m)) != 0)
-
-
-/* Information that need to be kept for each board. */
-struct rc32434_local {
- ETH_t eth_regs;
- DMA_Chan_t rx_dma_regs;
- DMA_Chan_t tx_dma_regs;
- volatile DMAD_t td_ring; /* transmit descriptor ring */
- volatile DMAD_t rd_ring; /* receive descriptor ring */
-
- struct sk_buff* tx_skb[RC32434_NUM_TDS]; /* skbuffs for pkt to trans */
- struct sk_buff* rx_skb[RC32434_NUM_RDS]; /* skbuffs for pkt to trans */
-
-#ifndef CONFIG_IDT_USE_NAPI
- struct tasklet_struct * rx_tasklet;
-#endif
- struct tasklet_struct * tx_tasklet;
-
- int rx_next_done;
- int rx_chain_head;
- int rx_chain_tail;
- enum status rx_chain_status;
-
- int tx_next_done;
- int tx_chain_head;
- int tx_chain_tail;
- enum status tx_chain_status;
- int tx_count;
- int tx_full;
-
- struct timer_list mii_phy_timer;
- unsigned long duplex_mode;
-
- int rx_irq;
- int tx_irq;
- int ovr_irq;
- int und_irq;
-
- struct net_device_stats stats;
- spinlock_t lock;
-
- /* debug /proc entry */
- struct proc_dir_entry *ps;
- int dma_halt_cnt; int dma_run_cnt;
-};
-
-extern unsigned int idt_cpu_freq;
-
-/* Index to functions, as function prototypes. */
-static int rc32434_open(struct net_device *dev);
-static int rc32434_send_packet(struct sk_buff *skb, struct net_device *dev);
-static void rc32434_mii_handler(unsigned long data);
-static irqreturn_t rc32434_und_interrupt(int irq, void *dev_id);
-static irqreturn_t rc32434_rx_dma_interrupt(int irq, void *dev_id);
-static irqreturn_t rc32434_tx_dma_interrupt(int irq, void *dev_id);
-#ifdef RC32434_REVISION
-static irqreturn_t rc32434_ovr_interrupt(int irq, void *dev_id);
-#endif
-static int rc32434_close(struct net_device *dev);
-static struct net_device_stats *rc32434_get_stats(struct net_device *dev);
-static void rc32434_multicast_list(struct net_device *dev);
-static int rc32434_init(struct net_device *dev);
-static void rc32434_tx_timeout(struct net_device *dev);
-
-static void rc32434_tx_tasklet(unsigned long tx_data_dev);
-#ifdef CONFIG_IDT_USE_NAPI
-static int rc32434_poll(struct net_device *rx_data_dev, int *budget);
-#else
-static void rc32434_rx_tasklet(unsigned long rx_data_dev);
-#endif
-static void rc32434_cleanup_module(void);
-static int rc32434_probe(int port_num);
-int rc32434_init_module(void);
-
-
-static inline void rc32434_abort_dma(struct net_device *dev, DMA_Chan_t ch)
-{
- if (rc32434_readl(&ch->dmac) & DMAC_run_m) {
- rc32434_writel(0x10, &ch->dmac);
-
- while (!(rc32434_readl(&ch->dmas) & DMAS_h_m))
- dev->trans_start = jiffies;
-
- rc32434_writel(0, &ch->dmas);
- }
-
- rc32434_writel(0, &ch->dmadptr);
- rc32434_writel(0, &ch->dmandptr);
-}
projects / openwrt / staging / chunkeey.git / blobdiff