Eros Q Native: Add Original Firmware Boot option

Hold "Play" to boot the OF, or boot it from the recovery menu
by holding "Vol. Up". If you had the hosted port installed on your
player before installing the native port, you'll still have to go
through the hosted bootloader.

A couple notes:

- When booting from the menu, the recovery menu disappears, then
  reappears before going into the OF.

- You need to hold the play button for like a half second after the
  blue light comes on in order to get into the OF.

The recovery appears to be there, but it doesn't seem to be intended
for end users - it just says "Updater V1.1 - Insert TF Pls". I haven't
tested it beyond seeing that it boots, so I'm going to comment it out
for now.

Change-Id: Ie271ee479bb628cc74141b7fe07273b3f193f358

2 files changed, 30 insertions, 0 deletions

diff --git a/firmware/target/mips/ingenic_x1000/erosqnative/lcd-erosqnative.c b/firmware/target/mips/ingenic_x1000/erosqnative/lcd-erosqnative.c
index 19da722898..0d43a3f010 100644
--- a/firmware/target/mips/ingenic_x1000/erosqnative/lcd-erosqnative.c
+++ b/firmware/target/mips/ingenic_x1000/erosqnative/lcd-erosqnative.c
@@ -102,6 +102,19 @@ static const uint32_t erosqnative_lcd_cmd_enable[] = {
     LCD_INSTR_END,
 };
 
+static const uint32_t erosqnative_lcd_of_compat_cmd[] = {
+    /* Pixel Format Set */
+    LCD_INSTR_CMD,      0x3a,
+    LCD_INSTR_DAT,      0x66, /* 18 bpp */
+    /* Exit Sleep */
+    LCD_INSTR_CMD,      0x11,
+    LCD_INSTR_UDELAY,   120000,
+    /* Display On */
+    LCD_INSTR_CMD,      0x29,
+    LCD_INSTR_UDELAY,   20000,
+    LCD_INSTR_END,
+};
+
 /* sleep and wake copied directly from m3k */
 static const uint32_t erosqnative_lcd_cmd_sleep[] = {
     /* Display OFF */
@@ -180,6 +193,15 @@ void lcd_tgt_enable(bool enable)
     }
 }
 
+void lcd_tgt_enable_of(bool enable)
+{
+    /* silence the unused parameter warning */
+    if (enable)
+    {}
+
+    lcd_exec_commands(&erosqnative_lcd_of_compat_cmd[0]);
+}
+
 void lcd_tgt_sleep(bool sleep)
 {
     if(sleep)
diff --git a/firmware/target/mips/ingenic_x1000/lcd-x1000.h b/firmware/target/mips/ingenic_x1000/lcd-x1000.h
index 749fac8240..e88a8733ed 100644
--- a/firmware/target/mips/ingenic_x1000/lcd-x1000.h
+++ b/firmware/target/mips/ingenic_x1000/lcd-x1000.h
@@ -105,6 +105,14 @@ extern void lcd_exec_commands(const uint32_t* cmdseq);
  */
 extern void lcd_tgt_enable(bool on);
 
+/* Enable/disable the LCD controller, but intended for booting the OF.
+ *
+ * This is only used for the Eros Q Native port, as the OF seems to be
+ * unable to initialize the LCD in the kernel boot rather than having
+ * the bootloader do it.
+ */
+extern void lcd_tgt_enable_of(bool on);
+
 /* Enter or exit sleep mode to save power, normally by sending the necessary
  * commands with lcd_exec_commands().
  */