X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/04f32c3e67120f8498cdcf7926bab88e4e405258..ebb55b7e5f0b8f31328950ec383b77b208ffbb64:/lunaix-os/hal/char/uart/16550_base.c

diff --git a/lunaix-os/hal/char/uart/16550_base.c b/lunaix-os/hal/char/uart/16550_base.c
deleted file mode 100644
index a84e3d0..0000000
--- a/lunaix-os/hal/char/uart/16550_base.c
+++ /dev/null
@@ -1,126 +0,0 @@
-#include <lunaix/mm/valloc.h>
-#include <lunaix/status.h>
-
-#include <usr/lunaix/serial.h>
-#include <usr/lunaix/term.h>
-
-#include "16550.h"
-
-struct uart16550*
-uart_alloc(ptr_t base_addr)
-{
-    struct uart16550* uart = valloc(sizeof(struct uart16550));
-
-    // load registers default value
-    uart->cntl_save.rmc = UART_rMC_DTR | UART_rMC_RTS | UART_rMC_IEN;
-    uart->cntl_save.rie = 0;
-
-    uart->base_addr = base_addr;
-    return uart;
-}
-
-void
-uart_free(struct uart16550* uart)
-{
-    vfree(uart);
-}
-
-int
-uart_general_tx(struct serial_dev* sdev, u8_t* data, size_t len)
-{
-    struct uart16550* uart = UART16550(sdev);
-
-    size_t i = 0;
-    while (i < len) {
-        while (!uart_can_transmit(uart))
-            ;
-        uart_write_byte(uart, data[i++]);
-    }
-
-    serial_end_xmit(sdev, len);
-
-    return RXTX_DONE;
-}
-
-#define UART_LCR_RESET \
-    (UART_rLC_STOPB | \
-     UART_rLC_PAREN | \
-     UART_rLC_PAREVN | \
-     UART_rLC_DLAB | 0b11)
-
-static void
-uart_set_control_mode(struct uart16550* uart, tcflag_t cflags)
-{
-    uart->cntl_save.rie &= ~(UART_rIE_ERBFI | UART_rIE_EDSSI);
-    uart->cntl_save.rie |= (!(cflags & _CLOCAL)) * UART_rIE_EDSSI;
-    uart->cntl_save.rie |= (!!(cflags & _CREAD)) * UART_rIE_ERBFI;
-    uart_setie(uart);
-
-    uart->cntl_save.rlc &= ~UART_LCR_RESET;
-    uart->cntl_save.rlc |= (!!(cflags & _CSTOPB)) * UART_rLC_STOPB;
-    uart->cntl_save.rlc |= (!!(cflags & _CPARENB)) * UART_rLC_PAREN;
-    uart->cntl_save.rlc |= (!(cflags & _CPARODD)) * UART_rLC_PAREVN;
-    uart->cntl_save.rlc |= (cflags & _CSZ_MASK) >> 2;
-    uart_setlc(uart);
-}
-
-int
-uart_general_exec_cmd(struct serial_dev* sdev, u32_t req, va_list args)
-{
-    struct uart16550* uart = UART16550(sdev);
-    switch (req) {
-        case SERIO_RXEN:
-            uart_setie(uart);
-            break;
-        case SERIO_RXDA:
-            uart_clrie(uart);
-            break;
-        case SERIO_SETBRDIV:
-            // TODO
-            break;
-        case SERIO_SETCNTRLMODE:
-            uart_set_control_mode(uart, va_arg(args, tcflag_t));
-            break;
-        default:
-            return ENOTSUP;
-    }
-    return 0;
-}
-
-void
-uart_general_irq_handler(int iv, struct llist_header* ports)
-{
-    char tmpbuf[32];
-    struct uart16550 *pos, *n;
-    llist_for_each(pos, n, ports, local_ports)
-    {
-        int is = uart_intr_identify(pos);
-        if (iv == pos->iv && (is == UART_CHR_TIMEOUT)) {
-            goto done;
-        }
-    }
-
-    return;
-
-done:
-    char recv;
-    int i = 0;
-    while ((recv = uart_read_byte(pos))) {
-        tmpbuf[i++] = recv;
-        if (likely(i < 32)) {
-            continue;
-        }
-
-        if (!serial_accept_buffer(pos->sdev, tmpbuf, i)) {
-            uart_clear_rxfifo(pos);
-            return;
-        }
-
-        i = 0;
-    }
-
-    serial_accept_buffer(pos->sdev, tmpbuf, i);
-    serial_accept_one(pos->sdev, 0);
-
-    serial_end_recv(pos->sdev);
-}