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fc-shell TCH DL handler: add support for CSD modes TCH DL capture mechanism in FC Tourmaline firmware has been extended to support CSD modes in addition to speech - add the necessary support on the host tools side. It needs to be noted that this mechanism in its present state does NOT provide the debug utility value that was sought: as we learned only after the code was implemented, TI's DSP has a misfeature in that the buffer we are reading (a_dd_0[]) is zeroed out when the IDS block is enabled, i.e., we are reading all zeros and not the real DL bits we were after. But since the code has already been written, we are keeping it - perhaps we can do some tests with IDS disabled.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 26 Nov 2024 06:27:43 +0000
parents 57f7db8c4f45
children
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/*
 * This module implements suspend and resume commands for entering
 * and exiting ILI9225G sleep mode.  These commands are expected
 * to work the same on both HaoRan and Formike LCDs, but the
 * current measurement resistor that allows one to see the actual
 * power supply current drawn by the LCD is present only on lunalcd2
 * boards.
 */

#include "types.h"
#include "luna.h"

void
cmd_suspend()
{
	LCD_REG_WR(0x0007, 0);			/* display off */
	wait_ARM_cycles(DELAY_1MS * 50);
	LCD_REG_WR(0x0010, 1);			/* suspend mode */
}

void
cmd_resume()
{
	LCD_REG_WR(0x0010, 0);			/* out of suspend */
	wait_ARM_cycles(DELAY_1MS * 50);
	LCD_REG_WR(0x0007, 0x1017);		/* display on */
}

/*
 * If we wish to run sans-UI firmware on an LCD-equipped board,
 * we would like to put the ILI9225G controller into its lowest
 * power mode, without doing anything else to it.  The following
 * reset-suspend command prototypes this functionality.
 */

void
cmd_reset_suspend()
{
	/* reset pulse */
	CNTL_RST_REG |= EXT_RESET;
	wait_ARM_cycles(DELAY_1MS * 10);
	CNTL_RST_REG &= ~EXT_RESET;
	/* datasheet says it needs 50 ms */
	wait_ARM_cycles(DELAY_1MS * 50);
	/* and straight into suspend mode */
	LCD_REG_WR(0x0010, 1);
}