serial_lpuart: Fix config check issue when using clk driver in SPL
[oweals/u-boot.git] / drivers / serial / sandbox.c
index ac54e0167eb63e8eb9189bc1b6b36c2417f789c4..33102fc872f20fd1b1533403ed9c33022fc7df41 100644 (file)
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2011 The Chromium OS Authors.
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 /*
  */
 
 #include <common.h>
+#include <console.h>
 #include <dm.h>
 #include <fdtdec.h>
 #include <lcd.h>
 #include <os.h>
 #include <serial.h>
+#include <video.h>
 #include <linux/compiler.h>
 #include <asm/state.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
+#if CONFIG_IS_ENABLED(OF_CONTROL)
+
 /*
  *
  *   serial_buf: A buffer that holds keyboard characters for the
- *              Sandbox U-boot.
+ *              Sandbox U-Boot.
  *
  * invariants:
  *   serial_buf_write           == serial_buf_read -> empty buffer
@@ -34,19 +37,70 @@ static char serial_buf[16];
 static unsigned int serial_buf_write;
 static unsigned int serial_buf_read;
 
+struct sandbox_serial_platdata {
+       int colour;     /* Text colour to use for output, -1 for none */
+};
+
+struct sandbox_serial_priv {
+       bool start_of_line;
+};
+
+/**
+ * output_ansi_colour() - Output an ANSI colour code
+ *
+ * @colour: Colour to output (0-7)
+ */
+static void output_ansi_colour(int colour)
+{
+       char ansi_code[] = "\x1b[1;3Xm";
+
+       ansi_code[5] = '0' + colour;
+       os_write(1, ansi_code, sizeof(ansi_code) - 1);
+}
+
+static void output_ansi_reset(void)
+{
+       os_write(1, "\x1b[0m", 4);
+}
+
 static int sandbox_serial_probe(struct udevice *dev)
 {
        struct sandbox_state *state = state_get_current();
+       struct sandbox_serial_priv *priv = dev_get_priv(dev);
 
        if (state->term_raw != STATE_TERM_COOKED)
                os_tty_raw(0, state->term_raw == STATE_TERM_RAW_WITH_SIGS);
+       priv->start_of_line = 0;
+
+       if (state->term_raw != STATE_TERM_RAW)
+               disable_ctrlc(1);
+
+       return 0;
+}
+
+static int sandbox_serial_remove(struct udevice *dev)
+{
+       struct sandbox_serial_platdata *plat = dev->platdata;
+
+       if (plat->colour != -1)
+               output_ansi_reset();
 
        return 0;
 }
 
 static int sandbox_serial_putc(struct udevice *dev, const char ch)
 {
+       struct sandbox_serial_priv *priv = dev_get_priv(dev);
+       struct sandbox_serial_platdata *plat = dev->platdata;
+
+       if (priv->start_of_line && plat->colour != -1) {
+               priv->start_of_line = false;
+               output_ansi_colour(plat->colour);
+       }
+
        os_write(1, &ch, 1);
+       if (ch == '\n')
+               priv->start_of_line = true;
 
        return 0;
 }
@@ -66,13 +120,13 @@ static int sandbox_serial_pending(struct udevice *dev, bool input)
                return 0;
 
        os_usleep(100);
-#ifdef CONFIG_LCD
-       lcd_sync();
+#ifndef CONFIG_SPL_BUILD
+       video_sync_all();
 #endif
        if (next_index == serial_buf_read)
                return 1;       /* buffer full */
 
-       count = os_read_no_block(0, &serial_buf[serial_buf_write], 1);
+       count = os_read(0, &serial_buf[serial_buf_write], 1);
        if (count == 1)
                serial_buf_write = next_index;
 
@@ -90,11 +144,104 @@ static int sandbox_serial_getc(struct udevice *dev)
        serial_buf_read = increment_buffer_index(serial_buf_read);
        return result;
 }
+#endif /* CONFIG_IS_ENABLED(OF_CONTROL) */
+
+#ifdef CONFIG_DEBUG_UART_SANDBOX
+
+#include <debug_uart.h>
+
+static inline void _debug_uart_init(void)
+{
+}
+
+static inline void _debug_uart_putc(int ch)
+{
+       os_putc(ch);
+}
+
+DEBUG_UART_FUNCS
+
+#endif /* CONFIG_DEBUG_UART_SANDBOX */
+
+static int sandbox_serial_getconfig(struct udevice *dev, uint *serial_config)
+{
+       uint config = SERIAL_DEFAULT_CONFIG;
+
+       if (!serial_config)
+               return -EINVAL;
+
+       *serial_config = config;
+
+       return 0;
+}
+
+static int sandbox_serial_setconfig(struct udevice *dev, uint serial_config)
+{
+       u8 parity = SERIAL_GET_PARITY(serial_config);
+       u8 bits = SERIAL_GET_BITS(serial_config);
+       u8 stop = SERIAL_GET_STOP(serial_config);
+
+       if (bits != SERIAL_8_BITS || stop != SERIAL_ONE_STOP ||
+           parity != SERIAL_PAR_NONE)
+               return -ENOTSUPP; /* not supported in driver*/
+
+       return 0;
+}
+
+static int sandbox_serial_getinfo(struct udevice *dev,
+                                 struct serial_device_info *serial_info)
+{
+       struct serial_device_info info = {
+               .type = SERIAL_CHIP_UNKNOWN,
+               .addr_space = SERIAL_ADDRESS_SPACE_IO,
+               .addr = SERIAL_DEFAULT_ADDRESS,
+               .reg_width = 1,
+               .reg_offset = 0,
+               .reg_shift = 0,
+       };
+
+       if (!serial_info)
+               return -EINVAL;
+
+       *serial_info = info;
+
+       return 0;
+}
+
+#if CONFIG_IS_ENABLED(OF_CONTROL)
+static const char * const ansi_colour[] = {
+       "black", "red", "green", "yellow", "blue", "megenta", "cyan",
+       "white",
+};
+
+static int sandbox_serial_ofdata_to_platdata(struct udevice *dev)
+{
+       struct sandbox_serial_platdata *plat = dev->platdata;
+       const char *colour;
+       int i;
+
+       plat->colour = -1;
+       colour = fdt_getprop(gd->fdt_blob, dev_of_offset(dev),
+                            "sandbox,text-colour", NULL);
+       if (colour) {
+               for (i = 0; i < ARRAY_SIZE(ansi_colour); i++) {
+                       if (!strcmp(colour, ansi_colour[i])) {
+                               plat->colour = i;
+                               break;
+                       }
+               }
+       }
+
+       return 0;
+}
 
 static const struct dm_serial_ops sandbox_serial_ops = {
        .putc = sandbox_serial_putc,
        .pending = sandbox_serial_pending,
        .getc = sandbox_serial_getc,
+       .getconfig = sandbox_serial_getconfig,
+       .setconfig = sandbox_serial_setconfig,
+       .getinfo = sandbox_serial_getinfo,
 };
 
 static const struct udevice_id sandbox_serial_ids[] = {
@@ -106,11 +253,21 @@ U_BOOT_DRIVER(serial_sandbox) = {
        .name   = "serial_sandbox",
        .id     = UCLASS_SERIAL,
        .of_match = sandbox_serial_ids,
+       .ofdata_to_platdata = sandbox_serial_ofdata_to_platdata,
+       .platdata_auto_alloc_size = sizeof(struct sandbox_serial_platdata),
+       .priv_auto_alloc_size = sizeof(struct sandbox_serial_priv),
        .probe = sandbox_serial_probe,
+       .remove = sandbox_serial_remove,
        .ops    = &sandbox_serial_ops,
        .flags = DM_FLAG_PRE_RELOC,
 };
 
+static const struct sandbox_serial_platdata platdata_non_fdt = {
+       .colour = -1,
+};
+
 U_BOOT_DEVICE(serial_sandbox_non_fdt) = {
        .name = "serial_sandbox",
+       .platdata = &platdata_non_fdt,
 };
+#endif /* CONFIG_IS_ENABLED(OF_CONTROL) */