source: rtems/c/src/lib/libbsp/arm/rtl22xx/network/network.c @ 3aa0564

4.104.114.84.9
Last change on this file since 3aa0564 was 3aa0564, checked in by Joel Sherrill <joel.sherrill@…>, on Jun 22, 2007 at 1:59:06 PM

2007-06-22 Joel Sherrill <joel.sherrill@…>

  • network/network.c: Remove cs8900_get_mac_addr which conflicted with one in libchip AND contained a hard-coded MAC address.
  • Property mode set to 100644
File size: 3.2 KB
Line 
1/*Note: this file is copy from 7312 BSP, and untested yet*/
2#include <rtems.h>
3#include <sys/mbuf.h>
4#include <irq.h>
5#include <libchip/cs8900.h>
6
7#define CS8900_BASE 0x20000300
8unsigned int bsp_cs8900_io_base = 0;
9unsigned int bsp_cs8900_memory_base = 0;
10cs8900_device *g_cs;
11rtems_isr cs8900_isr(rtems_vector_number v);
12rtems_irq_connect_data cs8900_isr_data = {LPC22xx_INTERRUPT_EINT2,
13                                         (rtems_irq_hdl)cs8900_isr,
14                                         NULL,
15                                         NULL,
16                                         NULL,
17                                         0,
18                                         0 };
19
20char g_enetbuf[1520];
21
22rtems_isr cs8900_isr(rtems_vector_number v)
23{
24    cs8900_interrupt(v, g_cs);
25}
26
27/* cs8900_io_set_reg - set one of the I/O addressed registers */
28void cs8900_io_set_reg (cs8900_device *cs, unsigned short reg, unsigned short data)
29{
30    /* works the same for all values of dev */
31/*
32    printf("cs8900_io_set_reg: reg: %#6x, val %#6x\n",
33           CS8900_BASE + reg,
34           data);
35*/
36   *(unsigned short *)(CS8900_BASE + reg) = data;
37}
38
39/* cs8900_io_get_reg - reads one of the I/O addressed registers */
40unsigned short cs8900_io_get_reg (cs8900_device *cs, unsigned short reg)
41{
42    unsigned short val;
43    /* works the same for all values of dev */
44    val = *(unsigned short *)(CS8900_BASE + reg);
45/*
46    printf("cs8900_io_get_reg: reg: %#6x, val %#6x\n", reg, val);
47*/
48    return val;
49}
50
51/* cs8900_mem_set_reg - sets one of the registers mapped through
52 *                      PacketPage
53 */
54void cs8900_mem_set_reg (cs8900_device *cs, unsigned long reg, unsigned short data)
55{
56    /* works the same for all values of dev */
57    cs8900_io_set_reg(cs, CS8900_IO_PACKET_PAGE_PTR, reg);
58    cs8900_io_set_reg(cs, CS8900_IO_PP_DATA_PORT0, data);
59}
60
61/* cs8900_mem_get_reg - reads one of the registers mapped through
62 *                      PacketPage
63 */
64unsigned short cs8900_mem_get_reg (cs8900_device *cs, unsigned long reg)
65{
66    /* works the same for all values of dev */
67    cs8900_io_set_reg(cs, CS8900_IO_PACKET_PAGE_PTR, reg);
68    return cs8900_io_get_reg(cs, CS8900_IO_PP_DATA_PORT0);
69}
70
71void cs8900_attach_interrupt (cs8900_device *cs)
72{
73    g_cs = cs;
74    BSP_install_rtems_irq_handler(&cs8900_isr_data);
75}
76
77void cs8900_detach_interrupt (cs8900_device *cs)
78{
79    BSP_remove_rtems_irq_handler(&cs8900_isr_data);
80}
81
82unsigned short cs8900_get_data_block (cs8900_device *cs, unsigned char *data)
83{
84    int len;
85    int i;
86
87    len = cs8900_mem_get_reg(cs, CS8900_PP_RxLength);
88
89    for (i = 0; i < ((len + 1) / 2); i++) {
90        ((short *)data)[i] = cs8900_io_get_reg(cs,
91                                               CS8900_IO_RX_TX_DATA_PORT0);
92    }
93    return len;
94}
95
96void cs8900_tx_load (cs8900_device *cs, struct mbuf *m)
97{
98    int len;
99    unsigned short *data;
100    int i;
101
102    len = 0;
103
104    do {
105        memcpy(&g_enetbuf[len], mtod(m, const void *), m->m_len);
106        len += m->m_len;
107        m = m->m_next;
108    } while (m != 0);
109
110    data = (unsigned short *) &g_enetbuf[0];
111    for (i = 0; i < ((len + 1) / 2); i++) {
112        cs8900_io_set_reg(cs,
113                          CS8900_IO_RX_TX_DATA_PORT0,
114                          data[i]);
115    }
116}
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