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This commit is contained in:
Richard Barry 2006-06-08 09:16:29 +00:00
parent 946da76519
commit 05023971cb
389 changed files with 11479 additions and 464 deletions
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184
Demo/uIP_Demo_Rowley_ARM7/uip/cs8900a.c
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@ -1,6 +1,6 @@
// cs8900a.c: device driver for the CS8900a chip in 8-bit mode.
#include <targets/LPC210x.h>
#include <LPC210x.h>
#include "cs8900a.h"
#include "uip.h"
@ -270,25 +270,31 @@ const TInitSeq InitSeq[] =
void
cs8900a_write(unsigned addr, unsigned int data)
{
IODIR |= 0xff << 16; // Data port to output
GPIO_IODIR |= 0xff << 16; // Data port to output
IOCLR = 0xf << 4; // Put address on bus
IOSET = addr << 4;
GPIO_IOCLR = 0xf << 4; // Put address on bus
GPIO_IOSET = addr << 4;
IOCLR = 0xff << 16; // Write low order byte to data bus
IOSET = data << 16;
GPIO_IOCLR = 0xff << 16; // Write low order byte to data bus
GPIO_IOSET = data << 16;
IOCLR = IOW; // Toggle IOW-signal
IOSET = IOW;
asm volatile ( "NOP" );
GPIO_IOCLR = IOW; // Toggle IOW-signal
asm volatile ( "NOP" );
GPIO_IOSET = IOW;
asm volatile ( "NOP" );
IOCLR = 0xf << 4;
IOSET = ((addr | 1) << 4); // And put next address on bus
GPIO_IOCLR = 0xf << 4;
GPIO_IOSET = ((addr | 1) << 4); // And put next address on bus
IOCLR = 0xff << 16; // Write high order byte to data bus
IOSET = data >> 8 << 16;
GPIO_IOCLR = 0xff << 16; // Write high order byte to data bus
GPIO_IOSET = data >> 8 << 16;
IOCLR = IOW; // Toggle IOW-signal
IOSET = IOW;
asm volatile ( "NOP" );
GPIO_IOCLR = IOW; // Toggle IOW-signal
asm volatile ( "NOP" );
GPIO_IOSET = IOW;
asm volatile ( "NOP" );
}
// Reads a word in little-endian byte order from a specified port-address
@ -297,20 +303,24 @@ cs8900a_read(unsigned addr)
{
unsigned int value;
IODIR &= ~(0xff << 16); // Data port to input
GPIO_IODIR &= ~(0xff << 16); // Data port to input
IOCLR = 0xf << 4; // Put address on bus
IOSET = addr << 4;
GPIO_IOCLR = 0xf << 4; // Put address on bus
GPIO_IOSET = addr << 4;
IOCLR = IOR; // IOR-signal low
value = (IOPIN >> 16) & 0xff; // get low order byte from data bus
IOSET = IOR;
asm volatile ( "NOP" );
GPIO_IOCLR = IOR; // IOR-signal low
asm volatile ( "NOP" );
value = (GPIO_IOPIN >> 16) & 0xff; // get low order byte from data bus
GPIO_IOSET = IOR;
IOSET = 1 << 4; // IOR high and put next address on bus
GPIO_IOSET = 1 << 4; // IOR high and put next address on bus
IOCLR = IOR; // IOR-signal low
value |= ((IOPIN >> 8) & 0xff00); // get high order byte from data bus
IOSET = IOR; // IOR-signal low
asm volatile ( "NOP" );
GPIO_IOCLR = IOR; // IOR-signal low
asm volatile ( "NOP" );
value |= ((GPIO_IOPIN >> 8) & 0xff00); // get high order byte from data bus
GPIO_IOSET = IOR; // IOR-signal low
return value;
}
@ -321,20 +331,24 @@ cs8900a_read_addr_high_first(unsigned addr)
{
unsigned int value;
IODIR &= ~(0xff << 16); // Data port to input
GPIO_IODIR &= ~(0xff << 16); // Data port to input
IOCLR = 0xf << 4; // Put address on bus
IOSET = (addr+1) << 4;
GPIO_IOCLR = 0xf << 4; // Put address on bus
GPIO_IOSET = (addr+1) << 4;
IOCLR = IOR; // IOR-signal low
value = ((IOPIN >> 8) & 0xff00); // get high order byte from data bus
IOSET = IOR; // IOR-signal high
asm volatile ( "NOP" );
GPIO_IOCLR = IOR; // IOR-signal low
asm volatile ( "NOP" );
value = ((GPIO_IOPIN >> 8) & 0xff00); // get high order byte from data bus
GPIO_IOSET = IOR; // IOR-signal high
IOCLR = 1 << 4; // Put low address on bus
GPIO_IOCLR = 1 << 4; // Put low address on bus
IOCLR = IOR; // IOR-signal low
value |= (IOPIN >> 16) & 0xff; // get low order byte from data bus
IOSET = IOR;
asm volatile ( "NOP" );
GPIO_IOCLR = IOR; // IOR-signal low
asm volatile ( "NOP" );
value |= (GPIO_IOPIN >> 16) & 0xff; // get low order byte from data bus
GPIO_IOSET = IOR;
return value;
}
@ -345,16 +359,16 @@ cs8900a_init(void)
int i;
// Reset outputs, control lines high
IOSET = IOR | IOW;
GPIO_IOSET = IOR | IOW;
// No LEDs on.
IOSET = LED_RED | LED_YELLOW | LED_GREEN;
GPIO_IOSET = LED_RED | LED_YELLOW | LED_GREEN;
// Port 3 as output (all pins but RS232)
IODIR = ~0U; // everything to output.
GPIO_IODIR = ~0U; // everything to output.
// Reset outputs
IOCLR = 0xff << 16; // clear data outputs
GPIO_IOCLR = 0xff << 16; // clear data outputs
// Reset the CS8900A
cs8900a_write(ADD_PORT, PP_SelfCTL);
@ -378,7 +392,7 @@ cs8900a_send(void)
{
unsigned u;
IOCLR = LED_RED; // Light RED LED when frame starting
GPIO_IOCLR = LED_RED; // Light RED LED when frame starting
// Transmit command
cs8900a_write(TX_CMD_PORT, TX_START_ALL_BYTES);
@ -394,7 +408,7 @@ cs8900a_send(void)
break;
if (u -- == 0)
{
IOSET = LED_RED; // Extinguish RED LED on end of frame
GPIO_IOSET = LED_RED; // Extinguish RED LED on end of frame
return;
}
@ -402,33 +416,37 @@ cs8900a_send(void)
skip_frame();
}
IODIR |= 0xff << 16; // Data port to output
GPIO_IODIR |= 0xff << 16; // Data port to output
// Send 40+14=54 bytes of header
for (u = 0; u < 54; u += 2)
{
IOCLR = 0xf << 4; // Put address on bus
IOSET = TX_FRAME_PORT << 4;
GPIO_IOCLR = 0xf << 4; // Put address on bus
GPIO_IOSET = TX_FRAME_PORT << 4;
IOCLR = 0xff << 16; // Write low order byte to data bus
IOSET = uip_buf[u] << 16; // write low order byte to data bus
GPIO_IOCLR = 0xff << 16; // Write low order byte to data bus
GPIO_IOSET = uip_buf[u] << 16; // write low order byte to data bus
IOCLR = IOW; // Toggle IOW-signal
IOSET = IOW;
asm volatile ( "NOP" );
GPIO_IOCLR = IOW; // Toggle IOW-signal
asm volatile ( "NOP" );
GPIO_IOSET = IOW;
IOCLR = 0xf << 4; // Put address on bus
IOSET = (TX_FRAME_PORT | 1) << 4; // and put next address on bus
GPIO_IOCLR = 0xf << 4; // Put address on bus
GPIO_IOSET = (TX_FRAME_PORT | 1) << 4; // and put next address on bus
IOCLR = 0xff << 16; // Write low order byte to data bus
IOSET = uip_buf[u+1] << 16; // write low order byte to data bus
GPIO_IOCLR = 0xff << 16; // Write low order byte to data bus
GPIO_IOSET = uip_buf[u+1] << 16; // write low order byte to data bus
IOCLR = IOW; // Toggle IOW-signal
IOSET = IOW;
asm volatile ( "NOP" );
GPIO_IOCLR = IOW; // Toggle IOW-signal
asm volatile ( "NOP" );
GPIO_IOSET = IOW;
}
if (uip_len <= 54)
{
IOSET = LED_RED; // Extinguish RED LED on end of frame
GPIO_IOSET = LED_RED; // Extinguish RED LED on end of frame
return;
}
@ -437,26 +455,30 @@ cs8900a_send(void)
for (u = 0; u < uip_len; u += 2)
{
IOCLR = 0xf << 4; // Put address on bus
IOSET = TX_FRAME_PORT << 4;
GPIO_IOCLR = 0xf << 4; // Put address on bus
GPIO_IOSET = TX_FRAME_PORT << 4;
IOCLR = 0xff << 16; // Write low order byte to data bus
IOSET = uip_appdata[u] << 16; // write low order byte to data bus
GPIO_IOCLR = 0xff << 16; // Write low order byte to data bus
GPIO_IOSET = uip_appdata[u] << 16; // write low order byte to data bus
IOCLR = IOW; // Toggle IOW-signal
IOSET = IOW;
asm volatile ( "NOP" );
GPIO_IOCLR = IOW; // Toggle IOW-signal
asm volatile ( "NOP" );
GPIO_IOSET = IOW;
IOCLR = 0xf << 4; // Put address on bus
IOSET = (TX_FRAME_PORT | 1) << 4; // and put next address on bus
GPIO_IOCLR = 0xf << 4; // Put address on bus
GPIO_IOSET = (TX_FRAME_PORT | 1) << 4; // and put next address on bus
IOCLR = 0xff << 16; // Write low order byte to data bus
IOSET = uip_appdata[u+1] << 16; // write low order byte to data bus
GPIO_IOCLR = 0xff << 16; // Write low order byte to data bus
GPIO_IOSET = uip_appdata[u+1] << 16; // write low order byte to data bus
IOCLR = IOW; // Toggle IOW-signal
IOSET = IOW;
asm volatile ( "NOP" );
GPIO_IOCLR = IOW; // Toggle IOW-signal
asm volatile ( "NOP" );
GPIO_IOSET = IOW;
}
IOSET = LED_RED; // Extinguish RED LED on end of frame
GPIO_IOSET = LED_RED; // Extinguish RED LED on end of frame
}
static void
@ -477,7 +499,7 @@ cs8900a_poll(void)
if ((cs8900a_read(DATA_PORT) & 0xd00) == 0)
return 0;
IOCLR = LED_GREEN; // Light GREED LED when frame coming in.
GPIO_IOCLR = LED_GREEN; // Light GREED LED when frame coming in.
// Read receiver status and discard it.
cs8900a_read_addr_high_first(RX_FRAME_PORT);
@ -493,30 +515,32 @@ cs8900a_poll(void)
}
// Data port to input
IODIR &= ~(0xff << 16);
GPIO_IODIR &= ~(0xff << 16);
IOCLR = 0xf << 4; // put address on bus
IOSET = RX_FRAME_PORT << 4;
GPIO_IOCLR = 0xf << 4; // put address on bus
GPIO_IOSET = RX_FRAME_PORT << 4;
// Read bytes into uip_buf
u = 0;
while (u < len)
{
IOCLR = 1 << 4; // put address on bus
GPIO_IOCLR = 1 << 4; // put address on bus
IOCLR = IOR; // IOR-signal low
uip_buf[u] = IOPIN >> 16; // get high order byte from data bus
IOSET = IOR; // IOR-signal high
GPIO_IOCLR = IOR; // IOR-signal low
uip_buf[u] = GPIO_IOPIN >> 16; // get high order byte from data bus
asm volatile ( "NOP" );
GPIO_IOSET = IOR; // IOR-signal high
IOSET = 1 << 4; // put address on bus
GPIO_IOSET = 1 << 4; // put address on bus
IOCLR = IOR; // IOR-signal low
uip_buf[u+1] = IOPIN >> 16; // get high order byte from data bus
IOSET = IOR; // IOR-signal high
GPIO_IOCLR = IOR; // IOR-signal low
asm volatile ( "NOP" );
uip_buf[u+1] = GPIO_IOPIN >> 16; // get high order byte from data bus
GPIO_IOSET = IOR; // IOR-signal high
u += 2;
}
IOSET = LED_GREEN; // Extinguish GREED LED when frame finished.
GPIO_IOSET = LED_GREEN; // Extinguish GREED LED when frame finished.
return len;
}