#include <common.h>
#include <charset.h>
+#include <malloc.h>
+#include <time.h>
#include <dm/device.h>
#include <efi_loader.h>
+#include <env.h>
#include <stdio_dev.h>
#include <video_console.h>
+#include <linux/delay.h>
#define EFI_COUT_MODE_2 2
#define EFI_MAX_COUT_MODE 3
if (timer_get_us() > timeout)
return 1;
- *c = getc();
+ *c = getchar();
return 0;
}
-/*
+/**
* Receive and parse a reply from the terminal.
*
* @n: array of return values
* @num: number of return values expected
* @end_char: character indicating end of terminal message
- * @return: non-zero indicates error
+ * Return: non-zero indicates error
*/
static int term_read_reply(int *n, int num, char end_char)
{
return 0;
}
+/**
+ * efi_cout_output_string() - write Unicode string to console
+ *
+ * This function implements the OutputString service of the simple text output
+ * protocol. See the Unified Extensible Firmware Interface (UEFI) specification
+ * for details.
+ *
+ * @this: simple text output protocol
+ * @string: u16 string
+ * Return: status code
+ */
static efi_status_t EFIAPI efi_cout_output_string(
struct efi_simple_text_output_protocol *this,
const efi_string_t string)
* Update the cursor position.
*
* The UEFI spec provides advance rules for U+0000, U+0008, U+000A,
- * and U000D. All other characters, including control characters
- * U+0007 (BEL) and U+0009 (TAB), have to increase the column by one.
+ * and U000D. All other control characters are ignored. Any non-control
+ * character increase the column by one.
*/
for (p = string; *p; ++p) {
switch (*p) {
case '\b': /* U+0008, backspace */
- con->cursor_column = max(0, con->cursor_column - 1);
+ if (con->cursor_column)
+ con->cursor_column--;
break;
case '\n': /* U+000A, newline */
con->cursor_column = 0;
*/
break;
default:
- con->cursor_column++;
+ /* Exclude control codes */
+ if (*p > 0x1f)
+ con->cursor_column++;
break;
}
if (con->cursor_column >= mode->columns) {
con->cursor_column = 0;
con->cursor_row++;
}
- con->cursor_row = min(con->cursor_row, (s32)mode->rows - 1);
+ /*
+ * When we exceed the row count the terminal will scroll up one
+ * line. We have to adjust the cursor position.
+ */
+ if (con->cursor_row >= mode->rows && con->cursor_row)
+ con->cursor_row--;
}
out:
return EFI_EXIT(ret);
}
+/**
+ * efi_cout_test_string() - test writing Unicode string to console
+ *
+ * This function implements the TestString service of the simple text output
+ * protocol. See the Unified Extensible Firmware Interface (UEFI) specification
+ * for details.
+ *
+ * As in OutputString we simply convert UTF-16 to UTF-8 there are no unsupported
+ * code points and we can always return EFI_SUCCESS.
+ *
+ * @this: simple text output protocol
+ * @string: u16 string
+ * Return: status code
+ */
static efi_status_t EFIAPI efi_cout_test_string(
struct efi_simple_text_output_protocol *this,
const efi_string_t string)
return EFI_EXIT(EFI_SUCCESS);
}
+/**
+ * cout_mode_matches() - check if mode has given terminal size
+ *
+ * @mode: text mode
+ * @rows: number of rows
+ * @cols: number of columns
+ * Return: true if number of rows and columns matches the mode and
+ * the mode is present
+ */
static bool cout_mode_matches(struct cout_mode *mode, int rows, int cols)
{
if (!mode->present)
/**
* query_console_serial() - query console size
*
- * @rows pointer to return number of rows
- * @columns pointer to return number of columns
- * Returns 0 on success
+ * When using a serial console or the net console we can only devise the
+ * terminal size by querying the terminal using ECMA-48 control sequences.
+ *
+ * @rows: pointer to return number of rows
+ * @cols: pointer to return number of columns
+ * Returns: 0 on success
*/
static int query_console_serial(int *rows, int *cols)
{
/* Empty input buffer */
while (tstc())
- getc();
+ getchar();
/*
* Not all terminals understand CSI [18t for querying the console size.
return ret;
}
-/*
- * Update the mode table.
+/**
+ * query_console_size() - update the mode table.
*
* By default the only mode available is 80x25. If the console has at least 50
* lines, enable mode 80x50. If we can query the console size and it is neither
}
}
+
+/**
+ * efi_cout_query_mode() - get terminal size for a text mode
+ *
+ * This function implements the QueryMode service of the simple text output
+ * protocol. See the Unified Extensible Firmware Interface (UEFI) specification
+ * for details.
+ *
+ * @this: simple text output protocol
+ * @mode_number: mode number to retrieve information on
+ * @columns: number of columns
+ * @rows: number of rows
+ * Return: status code
+ */
static efi_status_t EFIAPI efi_cout_query_mode(
struct efi_simple_text_output_protocol *this,
unsigned long mode_number, unsigned long *columns,
return EFI_EXIT(EFI_SUCCESS);
}
-static efi_status_t EFIAPI efi_cout_set_mode(
- struct efi_simple_text_output_protocol *this,
- unsigned long mode_number)
-{
- EFI_ENTRY("%p, %ld", this, mode_number);
-
-
- if (mode_number > efi_con_mode.max_mode)
- return EFI_EXIT(EFI_UNSUPPORTED);
-
- efi_con_mode.mode = mode_number;
- efi_con_mode.cursor_column = 0;
- efi_con_mode.cursor_row = 0;
-
- return EFI_EXIT(EFI_SUCCESS);
-}
-
static const struct {
unsigned int fg;
unsigned int bg;
{ 37, 47 }, /* 7: light gray, map to white */
};
-/* See EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.SetAttribute(). */
+/**
+ * efi_cout_set_attribute() - set fore- and background color
+ *
+ * This function implements the SetAttribute service of the simple text output
+ * protocol. See the Unified Extensible Firmware Interface (UEFI) specification
+ * for details.
+ *
+ * @this: simple text output protocol
+ * @attribute: foreground color - bits 0-3, background color - bits 4-6
+ * Return: status code
+ */
static efi_status_t EFIAPI efi_cout_set_attribute(
struct efi_simple_text_output_protocol *this,
unsigned long attribute)
EFI_ENTRY("%p, %lx", this, attribute);
+ efi_con_mode.attribute = attribute;
if (attribute)
printf(ESC"[%u;%u;%um", bold, color[fg].fg, color[bg].bg);
else
return EFI_EXIT(EFI_SUCCESS);
}
+/**
+ * efi_cout_clear_screen() - clear screen
+ *
+ * This function implements the ClearScreen service of the simple text output
+ * protocol. See the Unified Extensible Firmware Interface (UEFI) specification
+ * for details.
+ *
+ * @this: pointer to the protocol instance
+ * Return: status code
+ */
static efi_status_t EFIAPI efi_cout_clear_screen(
struct efi_simple_text_output_protocol *this)
{
EFI_ENTRY("%p", this);
- printf(ESC"[2J");
+ /*
+ * The Linux console wants both a clear and a home command. The video
+ * uclass does not support <ESC>[H without coordinates, yet.
+ */
+ printf(ESC "[2J" ESC "[1;1H");
efi_con_mode.cursor_column = 0;
efi_con_mode.cursor_row = 0;
return EFI_EXIT(EFI_SUCCESS);
}
+/**
+ * efi_cout_clear_set_mode() - set text model
+ *
+ * This function implements the SetMode service of the simple text output
+ * protocol. See the Unified Extensible Firmware Interface (UEFI) specification
+ * for details.
+ *
+ * @this: pointer to the protocol instance
+ * @mode_number: number of the text mode to set
+ * Return: status code
+ */
+static efi_status_t EFIAPI efi_cout_set_mode(
+ struct efi_simple_text_output_protocol *this,
+ unsigned long mode_number)
+{
+ EFI_ENTRY("%p, %ld", this, mode_number);
+
+ if (mode_number >= efi_con_mode.max_mode)
+ return EFI_EXIT(EFI_UNSUPPORTED);
+
+ if (!efi_cout_modes[mode_number].present)
+ return EFI_EXIT(EFI_UNSUPPORTED);
+
+ efi_con_mode.mode = mode_number;
+ EFI_CALL(efi_cout_clear_screen(this));
+
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+/**
+ * efi_cout_reset() - reset the terminal
+ *
+ * This function implements the Reset service of the simple text output
+ * protocol. See the Unified Extensible Firmware Interface (UEFI) specification
+ * for details.
+ *
+ * @this: pointer to the protocol instance
+ * @extended_verification: if set an extended verification may be executed
+ * Return: status code
+ */
static efi_status_t EFIAPI efi_cout_reset(
struct efi_simple_text_output_protocol *this,
char extended_verification)
/* Clear screen */
EFI_CALL(efi_cout_clear_screen(this));
/* Set default colors */
+ efi_con_mode.attribute = 0x07;
printf(ESC "[0;37;40m");
return EFI_EXIT(EFI_SUCCESS);
}
+/**
+ * efi_cout_set_cursor_position() - reset the terminal
+ *
+ * This function implements the SetCursorPosition service of the simple text
+ * output protocol. See the Unified Extensible Firmware Interface (UEFI)
+ * specification for details.
+ *
+ * @this: pointer to the protocol instance
+ * @column: column to move to
+ * @row: row to move to
+ * Return: status code
+ */
static efi_status_t EFIAPI efi_cout_set_cursor_position(
struct efi_simple_text_output_protocol *this,
unsigned long column, unsigned long row)
return EFI_EXIT(ret);
}
+/**
+ * efi_cout_enable_cursor() - enable the cursor
+ *
+ * This function implements the EnableCursor service of the simple text output
+ * protocol. See the Unified Extensible Firmware Interface (UEFI) specification
+ * for details.
+ *
+ * @this: pointer to the protocol instance
+ * @enable: if true enable, if false disable the cursor
+ * Return: status code
+ */
static efi_status_t EFIAPI efi_cout_enable_cursor(
struct efi_simple_text_output_protocol *this,
bool enable)
* struct efi_cin_notify_function - registered console input notify function
*
* @link: link to list
- * @data: key to notify
+ * @key: key to notify
* @function: function to call
*/
struct efi_cin_notify_function {
* set_shift_mask() - set shift mask
*
* @mod: Xterm shift mask
+ * @key_state: receives the state of the shift, alt, control, and logo keys
*/
void set_shift_mask(int mod, struct efi_key_state *key_state)
{
key_state->key_shift_state |= EFI_LEFT_ALT_PRESSED;
if (mod & 4)
key_state->key_shift_state |= EFI_LEFT_CONTROL_PRESSED;
- if (mod & 8)
+ if (!mod || (mod & 8))
key_state->key_shift_state |= EFI_LEFT_LOGO_PRESSED;
- } else {
- key_state->key_shift_state |= EFI_LEFT_LOGO_PRESSED;
}
}
*
* This gets called when we have already parsed CSI.
*
- * @modifiers: bit mask (shift, alt, ctrl)
- * @return: the unmodified code
+ * @key_state: receives the state of the shift, alt, control, and logo keys
+ * Return: the unmodified code
*/
static int analyze_modifiers(struct efi_key_state *key_state)
{
int c, mod = 0, ret = 0;
- c = getc();
+ c = getchar();
if (c != ';') {
ret = c;
if (c == '~')
goto out;
- c = getc();
+ c = getchar();
}
for (;;) {
switch (c) {
mod += c - '0';
/* fall through */
case ';':
- c = getc();
+ c = getchar();
break;
default:
goto out;
switch (ch) {
case 0x1b:
/*
+ * If a second key is received within 10 ms, assume that we are
+ * dealing with an escape sequence. Otherwise consider this the
+ * escape key being hit. 10 ms is long enough to work fine at
+ * 1200 baud and above.
+ */
+ udelay(10000);
+ if (!tstc()) {
+ pressed_key.scan_code = 23;
+ break;
+ }
+ /*
* Xterm Control Sequences
* https://www.xfree86.org/4.8.0/ctlseqs.html
*/
- ch = getc();
+ ch = getchar();
switch (ch) {
case cESC: /* ESC */
pressed_key.scan_code = 23;
break;
- case 'O': /* F1 - F4 */
- ch = getc();
+ case 'O': /* F1 - F4, End */
+ ch = getchar();
/* consider modifiers */
- if (ch < 'P') {
+ if (ch == 'F') { /* End */
+ pressed_key.scan_code = 6;
+ break;
+ } else if (ch < 'P') {
set_shift_mask(ch - '0', &key->key_state);
- ch = getc();
+ ch = getchar();
}
pressed_key.scan_code = ch - 'P' + 11;
break;
case '[':
- ch = getc();
+ ch = getchar();
switch (ch) {
case 'A'...'D': /* up, down right, left */
pressed_key.scan_code = ch - 'A' + 1;
case '1'...'5': /* F1 - F5 */
pressed_key.scan_code = ch - '1' + 11;
break;
- case '7'...'9': /* F6 - F8 */
- pressed_key.scan_code = ch - '7' + 16;
+ case '6'...'9': /* F5 - F8 */
+ pressed_key.scan_code = ch - '6' + 15;
break;
case 'A'...'D': /* up, down right, left */
pressed_key.scan_code = ch - 'A' + 1;
break;
- case 'F':
- pressed_key.scan_code = 6; /* End */
+ case 'F': /* End */
+ pressed_key.scan_code = 6;
+ break;
+ case 'H': /* Home */
+ pressed_key.scan_code = 5;
break;
- case 'H':
- pressed_key.scan_code = 5; /* Home */
+ case '~': /* Home */
+ pressed_key.scan_code = 5;
break;
}
break;
efi_status_t ret;
if (key_available) {
- efi_signal_event(efi_con_in.wait_for_key, true);
+ efi_signal_event(efi_con_in.wait_for_key);
return;
}
/* Queue the wait for key event */
if (key_available)
- efi_signal_event(efi_con_in.wait_for_key, true);
+ efi_signal_event(efi_con_in.wait_for_key);
}
}
}
static void efi_cin_empty_buffer(void)
{
while (tstc())
- getc();
+ getchar();
key_available = false;
}
projects / platform / kernel / u-boot.git / blobdiff