1 files changed, 125 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/edb7312/network/network.c b/c/src/lib/libbsp/arm/edb7312/network/network.c
new file mode 100644
index 0000000000..9265cddb94
--- /dev/null
+++ b/c/src/lib/libbsp/arm/edb7312/network/network.c
@@ -0,0 +1,125 @@
+#include <rtems.h>
+#include <sys/mbuf.h>
+#include <irq.h>
+#include <libchip/cs8900.h>
+
+#define CS8900_BASE 0x20000300
+unsigned int bsp_cs8900_io_base = 0;
+unsigned int bsp_cs8900_memory_base = 0;
+cs8900_device *g_cs;
+rtems_irq_hdl cs8900_isr(rtems_vector_number v);
+rtems_irq_connect_data cs8900_isr_data = {BSP_EINT3,
+                                         (rtems_irq_hdl)cs8900_isr,
+                                         NULL,
+                                         NULL,
+                                         NULL,
+                                         0,
+                                         0 };
+
+char g_enetbuf[1520];
+
+rtems_irq_hdl cs8900_isr(rtems_vector_number v)
+{
+    cs8900_interrupt(v, g_cs);
+}
+
+/* cs8900_io_set_reg - set one of the I/O addressed registers */
+void cs8900_io_set_reg (int dev, unsigned short reg, unsigned short data)
+{
+    /* works the same for all values of dev */
+/*
+    printf("cs8900_io_set_reg: reg: %#6x, val %#6x\n", 
+           CS8900_BASE + reg, 
+           data);
+*/
+   *(unsigned short *)(CS8900_BASE + reg) = data;
+}
+
+/* cs8900_io_get_reg - reads one of the I/O addressed registers */
+unsigned short cs8900_io_get_reg (int dev, unsigned short reg)
+{
+    unsigned short val;
+    /* works the same for all values of dev */
+    val = *(unsigned short *)(CS8900_BASE + reg);
+/*
+    printf("cs8900_io_get_reg: reg: %#6x, val %#6x\n", reg, val);
+*/
+    return val;
+}
+
+/* cs8900_mem_set_reg - sets one of the registers mapped through 
+ *                      PacketPage
+ */
+void cs8900_mem_set_reg (int dev, unsigned long reg, unsigned short data)
+{
+    /* works the same for all values of dev */
+    cs8900_io_set_reg(dev, CS8900_IO_PACKET_PAGE_PTR, reg);
+    cs8900_io_set_reg(dev, CS8900_IO_PP_DATA_PORT0, data);
+}
+
+/* cs8900_mem_get_reg - reads one of the registers mapped through 
+ *                      PacketPage
+ */
+unsigned short cs8900_mem_get_reg (int dev, unsigned long reg)
+{
+    /* works the same for all values of dev */
+    cs8900_io_set_reg(dev, CS8900_IO_PACKET_PAGE_PTR, reg);
+    return cs8900_io_get_reg(dev, CS8900_IO_PP_DATA_PORT0);
+}
+
+void cs8900_get_mac_addr (int dev, unsigned char *mac_address)
+{
+    mac_address[0] = 0x08;
+    mac_address[1] = 0x00;
+    mac_address[2] = 0x3e;
+    mac_address[3] = 0x21;
+    mac_address[4] = 0xc7;
+    mac_address[5] = 0xf7;
+}
+
+void cs8900_attach_interrupt (int dev, cs8900_device *cs)
+{
+    g_cs = cs;
+    BSP_install_rtems_irq_handler(&cs8900_isr_data);
+}
+
+void cs8900_detach_interrupt (int dev)
+{
+    BSP_remove_rtems_irq_handler(&cs8900_isr_data);
+}
+
+unsigned short cs8900_get_data_block (int dev, unsigned char *data)
+{
+    int len;
+    int i;
+
+    len = cs8900_mem_get_reg(dev, CS8900_PP_RxLength);
+
+    for (i = 0; i < ((len + 1) / 2); i++) {
+        ((short *)data)[i] = cs8900_io_get_reg(dev, 
+                                               CS8900_IO_RX_TX_DATA_PORT0);
+    }
+    return len;
+}
+
+void cs8900_tx_load (int dev, struct mbuf *m)
+{
+    int len;
+    short *data;
+    int i;
+
+    len = 0;
+
+    do {
+        memcpy(&g_enetbuf[len], mtod(m, const void *), m->m_len);
+        len += m->m_len;
+        m = m->m_next;
+    } while (m != 0);
+    
+    data = (unsigned short *) &g_enetbuf[0];
+    for (i = 0; i < ((len + 1) / 2); i++) {
+        cs8900_io_set_reg(dev, 
+                          CS8900_IO_RX_TX_DATA_PORT0,
+                          data[i]);
+    }
+}