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/* Definitions */
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/* Definitions */
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#define UART_ADDR_SPACE (8) /* UART memory address space size in bytes */
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#define UART_ADDR_SPACE (8) /* UART memory address space size in bytes */
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#define UART_RX_BUF (8192) /* VAPI should not send more that this amout of char before requesting something back */
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#define UART_RX_BUF (8192) /* VAPI should not send more that this amout of char before requesting something back */
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#define UART_MAX_FIFO_LEN (16) /* rx FIFO for uart 16550 */
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#define UART_MAX_FIFO_LEN (16) /* rx FIFO for uart 16550 */
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#define MAX_SKEW (1) /* max. clock skew in subclocks */
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/* Registers */
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/* Registers */
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struct dev_16450 {
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struct dev_16450 {
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struct {
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struct {
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unsigned char thre_int;
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unsigned char thre_int;
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unsigned long txser_clks;
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unsigned long txser_clks;
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unsigned long rxser_clks;
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unsigned long rxser_clks;
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} istat; /* Internal status */
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} istat; /* Internal status */
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/* Clocks per char */
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unsigned long char_clks;
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unsigned long char_clks;
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/* VAPI internal registers */
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struct {
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unsigned long char_clks;
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int dll, dlh;
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int lcr;
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int skew;
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} vapi;
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/* Required by VAPI - circular buffer */
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/* Required by VAPI - circular buffer */
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unsigned long vapi_buf[UART_RX_BUF]; /* Buffer to store incoming characters to,
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unsigned long vapi_buf[UART_RX_BUF]; /* Buffer to store incoming characters to,
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since we cannot handle them so fast - we
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since we cannot handle them so fast - we
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are serial */
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are serial */
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int vapi_buf_head_ptr; /* Where we write to */
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int vapi_buf_head_ptr; /* Where we write to */
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