source: rtems/bsps/arm/rtl22xx/net/network.c @ cb68253

5
Last change on this file since cb68253 was cb68253, checked in by Sebastian Huber <sebastian.huber@…>, on 09/07/18 at 04:19:02

network: Use kernel/user space header files

Add and use <machine/rtems-bsd-kernel-space.h> and
<machine/rtems-bsd-user-space.h> similar to the libbsd to avoid command
line defines and defines scattered throught the code base.

Simplify cpukit/libnetworking/Makefile.am.

Update #3375.

  • Property mode set to 100644
File size: 3.2 KB
Line 
1/*Note: this file is copy from 7312 BSP, and untested yet*/
2
3#include <machine/rtems-bsd-kernel-space.h>
4
5#include <rtems.h>
6#include <sys/param.h>
7#include <sys/mbuf.h>
8#include <bsp/irq.h>
9#include <libchip/cs8900.h>
10#include <assert.h>
11
12#define CS8900_BASE 0x20000300
13unsigned int bsp_cs8900_io_base = 0;
14unsigned int bsp_cs8900_memory_base = 0;
15static void cs8900_isr(void *);
16
17char g_enetbuf[1520];
18
19static void cs8900_isr(void *arg)
20{
21    cs8900_interrupt(LPC22xx_INTERRUPT_EINT2, arg);
22}
23
24/* cs8900_io_set_reg - set one of the I/O addressed registers */
25void cs8900_io_set_reg (cs8900_device *cs, unsigned short reg, unsigned short data)
26{
27    /* works the same for all values of dev */
28/*
29    printf("cs8900_io_set_reg: reg: %#6x, val %#6x\n",
30           CS8900_BASE + reg,
31           data);
32*/
33   *(unsigned short *)(CS8900_BASE + reg) = data;
34}
35
36/* cs8900_io_get_reg - reads one of the I/O addressed registers */
37unsigned short cs8900_io_get_reg (cs8900_device *cs, unsigned short reg)
38{
39    unsigned short val;
40    /* works the same for all values of dev */
41    val = *(unsigned short *)(CS8900_BASE + reg);
42/*
43    printf("cs8900_io_get_reg: reg: %#6x, val %#6x\n", reg, val);
44*/
45    return val;
46}
47
48/* cs8900_mem_set_reg - sets one of the registers mapped through
49 *                      PacketPage
50 */
51void cs8900_mem_set_reg (cs8900_device *cs, unsigned long reg, unsigned short data)
52{
53    /* works the same for all values of dev */
54    cs8900_io_set_reg(cs, CS8900_IO_PACKET_PAGE_PTR, reg);
55    cs8900_io_set_reg(cs, CS8900_IO_PP_DATA_PORT0, data);
56}
57
58/* cs8900_mem_get_reg - reads one of the registers mapped through
59 *                      PacketPage
60 */
61unsigned short cs8900_mem_get_reg (cs8900_device *cs, unsigned long reg)
62{
63    /* works the same for all values of dev */
64    cs8900_io_set_reg(cs, CS8900_IO_PACKET_PAGE_PTR, reg);
65    return cs8900_io_get_reg(cs, CS8900_IO_PP_DATA_PORT0);
66}
67
68void cs8900_attach_interrupt (cs8900_device *cs)
69{
70    rtems_status_code status = RTEMS_SUCCESSFUL;
71    status = rtems_interrupt_handler_install(
72        LPC22xx_INTERRUPT_EINT2,
73        "Network",
74        RTEMS_INTERRUPT_UNIQUE,
75        cs8900_isr,
76        cs
77    );
78    assert(status == RTEMS_SUCCESSFUL);
79}
80
81void cs8900_detach_interrupt (cs8900_device *cs)
82{
83    rtems_status_code status = RTEMS_SUCCESSFUL;
84    status = rtems_interrupt_handler_remove(
85        LPC22xx_INTERRUPT_EINT2,
86        cs8900_isr,
87        cs
88    );
89    assert(status == RTEMS_SUCCESSFUL);
90}
91
92unsigned short cs8900_get_data_block (cs8900_device *cs, unsigned char *data)
93{
94    int len;
95    int i;
96
97    len = cs8900_mem_get_reg(cs, CS8900_PP_RxLength);
98
99    for (i = 0; i < ((len + 1) / 2); i++) {
100        ((short *)data)[i] = cs8900_io_get_reg(cs,
101                                               CS8900_IO_RX_TX_DATA_PORT0);
102    }
103    return len;
104}
105
106void cs8900_tx_load (cs8900_device *cs, struct mbuf *m)
107{
108    int len;
109    unsigned short *data;
110    int i;
111
112    len = 0;
113
114    do {
115        memcpy(&g_enetbuf[len], mtod(m, const void *), m->m_len);
116        len += m->m_len;
117        m = m->m_next;
118    } while (m != 0);
119
120    data = (unsigned short *) &g_enetbuf[0];
121    for (i = 0; i < ((len + 1) / 2); i++) {
122        cs8900_io_set_reg(cs,
123                          CS8900_IO_RX_TX_DATA_PORT0,
124                          data[i]);
125    }
126}
Note: See TracBrowser for help on using the repository browser.