[f4392b88] | 1 | /*Note: this file is copy from 7312 BSP, and untested yet*/ |
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| 2 | #include <rtems.h> |
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| 3 | #include <sys/mbuf.h> |
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| 4 | #include <irq.h> |
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| 5 | #include <libchip/cs8900.h> |
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| 6 | |
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| 7 | #define CS8900_BASE 0x20000300 |
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| 8 | unsigned int bsp_cs8900_io_base = 0; |
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| 9 | unsigned int bsp_cs8900_memory_base = 0; |
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| 10 | cs8900_device *g_cs; |
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| 11 | rtems_isr cs8900_isr(rtems_vector_number v); |
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| 12 | rtems_irq_connect_data cs8900_isr_data = {LPC22xx_INTERRUPT_EINT2, |
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| 13 | (rtems_irq_hdl)cs8900_isr, |
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| 14 | NULL, |
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| 15 | NULL, |
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| 16 | NULL, |
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| 17 | 0, |
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| 18 | 0 }; |
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| 19 | |
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| 20 | char g_enetbuf[1520]; |
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| 21 | |
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| 22 | rtems_isr cs8900_isr(rtems_vector_number v) |
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| 23 | { |
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| 24 | cs8900_interrupt(v, g_cs); |
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| 25 | } |
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| 26 | |
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| 27 | /* cs8900_io_set_reg - set one of the I/O addressed registers */ |
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| 28 | void cs8900_io_set_reg (cs8900_device *cs, unsigned short reg, unsigned short data) |
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| 29 | { |
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| 30 | /* works the same for all values of dev */ |
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| 31 | /* |
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| 32 | printf("cs8900_io_set_reg: reg: %#6x, val %#6x\n", |
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| 33 | CS8900_BASE + reg, |
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| 34 | data); |
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| 35 | */ |
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| 36 | *(unsigned short *)(CS8900_BASE + reg) = data; |
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| 37 | } |
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| 38 | |
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| 39 | /* cs8900_io_get_reg - reads one of the I/O addressed registers */ |
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| 40 | unsigned short cs8900_io_get_reg (cs8900_device *cs, unsigned short reg) |
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| 41 | { |
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| 42 | unsigned short val; |
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| 43 | /* works the same for all values of dev */ |
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| 44 | val = *(unsigned short *)(CS8900_BASE + reg); |
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| 45 | /* |
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| 46 | printf("cs8900_io_get_reg: reg: %#6x, val %#6x\n", reg, val); |
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| 47 | */ |
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| 48 | return val; |
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| 49 | } |
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| 50 | |
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| 51 | /* cs8900_mem_set_reg - sets one of the registers mapped through |
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| 52 | * PacketPage |
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| 53 | */ |
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| 54 | void cs8900_mem_set_reg (cs8900_device *cs, unsigned long reg, unsigned short data) |
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| 55 | { |
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| 56 | /* works the same for all values of dev */ |
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| 57 | cs8900_io_set_reg(cs, CS8900_IO_PACKET_PAGE_PTR, reg); |
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| 58 | cs8900_io_set_reg(cs, CS8900_IO_PP_DATA_PORT0, data); |
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| 59 | } |
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| 60 | |
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| 61 | /* cs8900_mem_get_reg - reads one of the registers mapped through |
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| 62 | * PacketPage |
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| 63 | */ |
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| 64 | unsigned short cs8900_mem_get_reg (cs8900_device *cs, unsigned long reg) |
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| 65 | { |
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| 66 | /* works the same for all values of dev */ |
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| 67 | cs8900_io_set_reg(cs, CS8900_IO_PACKET_PAGE_PTR, reg); |
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| 68 | return cs8900_io_get_reg(cs, CS8900_IO_PP_DATA_PORT0); |
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| 69 | } |
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| 70 | |
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| 71 | void cs8900_attach_interrupt (cs8900_device *cs) |
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| 72 | { |
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| 73 | g_cs = cs; |
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| 74 | BSP_install_rtems_irq_handler(&cs8900_isr_data); |
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| 75 | } |
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| 76 | |
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| 77 | void cs8900_detach_interrupt (cs8900_device *cs) |
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| 78 | { |
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| 79 | BSP_remove_rtems_irq_handler(&cs8900_isr_data); |
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| 80 | } |
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| 81 | |
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| 82 | unsigned short cs8900_get_data_block (cs8900_device *cs, unsigned char *data) |
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| 83 | { |
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| 84 | int len; |
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| 85 | int i; |
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| 86 | |
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| 87 | len = cs8900_mem_get_reg(cs, CS8900_PP_RxLength); |
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| 88 | |
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| 89 | for (i = 0; i < ((len + 1) / 2); i++) { |
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| 90 | ((short *)data)[i] = cs8900_io_get_reg(cs, |
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| 91 | CS8900_IO_RX_TX_DATA_PORT0); |
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| 92 | } |
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| 93 | return len; |
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| 94 | } |
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| 95 | |
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| 96 | void cs8900_tx_load (cs8900_device *cs, struct mbuf *m) |
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| 97 | { |
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| 98 | int len; |
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| 99 | unsigned short *data; |
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| 100 | int i; |
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| 101 | |
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| 102 | len = 0; |
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| 103 | |
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| 104 | do { |
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| 105 | memcpy(&g_enetbuf[len], mtod(m, const void *), m->m_len); |
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| 106 | len += m->m_len; |
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| 107 | m = m->m_next; |
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| 108 | } while (m != 0); |
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| 109 | |
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| 110 | data = (unsigned short *) &g_enetbuf[0]; |
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| 111 | for (i = 0; i < ((len + 1) / 2); i++) { |
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| 112 | cs8900_io_set_reg(cs, |
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| 113 | CS8900_IO_RX_TX_DATA_PORT0, |
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| 114 | data[i]); |
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| 115 | } |
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| 116 | } |
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