| Line 37... |
Line 37... |
#include "pic.h"
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#include "pic.h"
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#include "vapi.h"
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#include "vapi.h"
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#define MIN(a,b) ((a) < (b) ? (a) : (b))
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#define MIN(a,b) ((a) < (b) ? (a) : (b))
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static struct dev_16450 uarts[NR_UARTS];
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static struct dev_16450 uarts[MAX_UARTS];
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static int thre_int;
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static int thre_int;
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/* Number of clock cycles (one clock cycle is one call to the uart_clock())
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/* Number of clock cycles (one clock cycle is one call to the uart_clock())
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before a single character is transmitted or received. */
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before a single character is transmitted or received. */
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static unsigned long char_clks(int dll, int dlh, int lcr)
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static unsigned long char_clks(int dll, int dlh, int lcr)
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| Line 71... |
Line 71... |
{
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{
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int chipsel;
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int chipsel;
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debug(4, "uart_write_byte(%x,%02x)\n", addr, (unsigned)value);
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debug(4, "uart_write_byte(%x,%02x)\n", addr, (unsigned)value);
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for(chipsel = 0; chipsel < NR_UARTS; chipsel++)
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for(chipsel = 0; chipsel < MAX_UARTS; chipsel++)
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if ((addr & ~(UART_ADDR_SPACE-1)) == config.uarts[chipsel].baseaddr)
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if ((addr & ~(UART_ADDR_SPACE-1)) == config.uarts[chipsel].baseaddr)
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break;
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break;
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if (chipsel >= NR_UARTS) return;
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if (chipsel >= MAX_UARTS) return;
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if (uarts[chipsel].regs.lcr & UART_LCR_DLAB) {
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if (uarts[chipsel].regs.lcr & UART_LCR_DLAB) {
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switch (addr % UART_ADDR_SPACE) {
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switch (addr % UART_ADDR_SPACE) {
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case UART_DLL:
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case UART_DLL:
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uarts[chipsel].regs.dll = value;
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uarts[chipsel].regs.dll = value;
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| Line 146... |
Line 146... |
unsigned char value = 0;
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unsigned char value = 0;
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int chipsel;
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int chipsel;
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debug(4, "uart_read_byte(%x)", addr);
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debug(4, "uart_read_byte(%x)", addr);
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for(chipsel = 0; chipsel < NR_UARTS; chipsel++)
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for(chipsel = 0; chipsel < MAX_UARTS; chipsel++)
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if ((addr & ~(UART_ADDR_SPACE-1)) == config.uarts[chipsel].baseaddr)
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if ((addr & ~(UART_ADDR_SPACE-1)) == config.uarts[chipsel].baseaddr)
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break;
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break;
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if (chipsel >= NR_UARTS)
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if (chipsel >= MAX_UARTS)
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return 0;
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return 0;
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if (uarts[chipsel].regs.lcr & UART_LCR_DLAB) {
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if (uarts[chipsel].regs.lcr & UART_LCR_DLAB) {
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switch (addr % UART_ADDR_SPACE) {
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switch (addr % UART_ADDR_SPACE) {
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case UART_DLL:
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case UART_DLL:
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