165 lines
4.5 KiB
C
165 lines
4.5 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2000,2001,2002,2003,2004,2005,2007,2008,2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/machine/memory.h>
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#include <grub/serial.h>
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#include <grub/term.h>
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#include <grub/types.h>
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#include <grub/dl.h>
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#include <grub/misc.h>
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#include <grub/terminfo.h>
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#include <grub/cpu/io.h>
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#include <grub/extcmd.h>
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#include <grub/i18n.h>
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static unsigned int registered = 0;
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/* Argument options. */
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static const struct grub_arg_option options[] =
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{
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{"unit", 'u', 0, N_("Set the serial unit."), 0, ARG_TYPE_INT},
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{"speed", 's', 0, N_("Set the serial port speed."), 0, ARG_TYPE_INT},
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{"word", 'w', 0, N_("Set the serial port word length."), 0, ARG_TYPE_INT},
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{"parity", 'r', 0, N_("Set the serial port parity."), 0, ARG_TYPE_STRING},
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{"stop", 't', 0, N_("Set the serial port stop bits."), 0, ARG_TYPE_INT},
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{0, 0, 0, 0, 0, 0}
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};
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/* Serial port settings. */
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struct usbserial_port
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{
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grub_usb_device_t usbdev;
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int in_endp;
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int out_endp;
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unsigned short divisor;
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unsigned short word_len;
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unsigned int parity;
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unsigned short stop_bits;
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};
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/* Serial port settings. */
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static struct serial_port serial_settings;
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/* Fetch a key. */
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static int
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serial_hw_fetch (void)
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{
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/* FIXME */
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return -1;
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}
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/* Put a character. */
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static void
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usbserial_hw_put (struct usbserial_port *port, const int c)
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{
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char cc = c;
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grub_usb_bulk_write (port->usbdev, port->out_endp, 1, &cc);
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}
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static grub_uint16_t
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grub_serial_getwh (struct grub_term_output *term __attribute__ ((unused)))
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{
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const grub_uint8_t TEXT_WIDTH = 80;
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const grub_uint8_t TEXT_HEIGHT = 24;
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return (TEXT_WIDTH << 8) | TEXT_HEIGHT;
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}
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struct grub_terminfo_input_state grub_serial_terminfo_input =
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{
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.readkey = serial_hw_fetch
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};
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struct grub_terminfo_output_state grub_serial_terminfo_output =
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{
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.put = usbserial_hw_put
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};
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static struct grub_term_input grub_serial_term_input =
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{
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.name = "usbserial",
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.init = grub_terminfo_input_init,
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.checkkey = grub_terminfo_checkkey,
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.getkey = grub_terminfo_getkey,
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.data = &grub_serial_terminfo_input
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};
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static struct grub_term_output grub_serial_term_output =
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{
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.name = "usbserial",
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.putchar = grub_terminfo_putchar,
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.getwh = grub_serial_getwh,
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.getxy = grub_terminfo_getxy,
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.gotoxy = grub_terminfo_gotoxy,
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.cls = grub_terminfo_cls,
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.setcolorstate = grub_terminfo_setcolorstate,
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.setcursor = grub_terminfo_setcursor,
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.flags = GRUB_TERM_CODE_TYPE_ASCII,
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.data = &grub_serial_terminfo_output,
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.normal_color = GRUB_TERM_DEFAULT_NORMAL_COLOR,
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.highlight_color = GRUB_TERM_DEFAULT_HIGHLIGHT_COLOR,
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};
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static grub_extcmd_t cmd;
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GRUB_MOD_INIT(serial)
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{
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cmd = grub_register_extcmd ("serial", grub_cmd_serial,
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GRUB_COMMAND_FLAG_BOTH,
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N_("[OPTIONS...]"),
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N_("Configure serial port."), options);
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/* Set default settings. */
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serial_settings.port = serial_hw_get_port (0);
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#ifdef GRUB_MACHINE_MIPS_YEELOONG
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serial_settings.divisor = serial_get_divisor (115200);
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#else
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serial_settings.divisor = serial_get_divisor (9600);
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#endif
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serial_settings.word_len = UART_8BITS_WORD;
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serial_settings.parity = UART_NO_PARITY;
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serial_settings.stop_bits = UART_1_STOP_BIT;
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#ifdef GRUB_MACHINE_MIPS_YEELOONG
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{
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grub_err_t hwiniterr;
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hwiniterr = serial_hw_init ();
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if (hwiniterr == GRUB_ERR_NONE)
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{
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grub_term_register_input_active ("serial", &grub_serial_term_input);
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grub_term_register_output_active ("serial", &grub_serial_term_output);
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registered = 1;
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}
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}
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#endif
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}
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GRUB_MOD_FINI(serial)
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{
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grub_unregister_extcmd (cmd);
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if (registered == 1) /* Unregister terminal only if registered. */
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{
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grub_term_unregister_input (&grub_serial_term_input);
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grub_term_unregister_output (&grub_serial_term_output);
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grub_terminfo_output_unregister (&grub_serial_term_output);
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}
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}
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