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authorflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2008-07-15 17:18:28 +0000
committerflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2008-07-15 17:18:28 +0000
commit82da4199c3fefabb6e2ad89bc349eb1dbad94178 (patch)
treed9739f3e39aff522c95b81398ef01375c26a11b3 /target/linux/rb532/files-2.6.24/drivers/net/rc32434_eth.h
parent42c88ed264e86b3e8287f85e2099bc2ca7c5f51d (diff)
Add basic 2.6.24 support for rb532, korina napi code has to be adapted to work
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11844 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/rb532/files-2.6.24/drivers/net/rc32434_eth.h')
-rw-r--r--target/linux/rb532/files-2.6.24/drivers/net/rc32434_eth.h173
1 files changed, 173 insertions, 0 deletions
diff --git a/target/linux/rb532/files-2.6.24/drivers/net/rc32434_eth.h b/target/linux/rb532/files-2.6.24/drivers/net/rc32434_eth.h
new file mode 100644
index 0000000000..5ac6dc3546
--- /dev/null
+++ b/target/linux/rb532/files-2.6.24/drivers/net/rc32434_eth.h
@@ -0,0 +1,173 @@
+/**************************************************************************
+ *
+ * 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/rc32434/rc32434.h>
+#include <asm/rc32434/dma_v.h>
+#include <asm/rc32434/eth_v.h>
+
+#define CONFIG_IDT_USE_NAPI 1
+#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)
+
+/* 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 */
+
+ 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;
+ struct napi_struct napi;
+ struct net_device *dev;
+};
+
+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);
+static int rc32434_poll(struct napi_struct *napi, int budget);
+static void rc32434_cleanup_module(void);
+
+
+static inline void rc32434_abort_dma(struct net_device *dev, DMA_Chan_t ch)
+{
+ if (__raw_readl(&ch->dmac) & DMAC_run_m) {
+ __raw_writel(0x10, &ch->dmac);
+
+ while (!(__raw_readl(&ch->dmas) & DMAS_h_m))
+ dev->trans_start = jiffies;
+
+ __raw_writel(0, &ch->dmas);
+ }
+
+ __raw_writel(0, &ch->dmadptr);
+ __raw_writel(0, &ch->dmandptr);
+}