Remove superfluous driver file

1 files changed, 0 insertions, 606 deletions

diff --git a/drivers/gdisp/ED060SC4/gdisp_lld.c b/drivers/gdisp/ED060SC4/gdisp_lld.c
deleted file mode 100644
index fcc03944..00000000
--- a/drivers/gdisp/ED060SC4/gdisp_lld.c
+++ /dev/null
@@ -1,606 +0,0 @@
-/*
- * This file is subject to the terms of the GFX License. If a copy of
- * the license was not distributed with this file, you can obtain one at:
- *
- *              http://ugfx.org/license.html
- */
-
-/* Low-level E-ink panel driver routines for ED060SC4. */
-
-#include "gfx.h"
-#include "ed060sc4.h"
-
-#if GFX_USE_GDISP
-
-#include "gdisp/lld/emulation.c"
-
-/* =================================
- *      Default configuration
- * ================================= */
-
-#ifndef GDISP_SCREEN_HEIGHT
-#       define GDISP_SCREEN_HEIGHT 600
-#endif
-
-#ifndef GDISP_SCREEN_WIDTH
-#       define GDISP_SCREEN_WIDTH 800
-#endif
-
-/* Number of pixels per byte */
-#ifndef EINK_PPB
-#       define EINK_PPB 4
-#endif
-
-/* Delay for generating clock pulses.
- * Unit is approximate clock cycles of the CPU (0 to 15).
- * This should be atleast 50 ns.
- */
-#ifndef EINK_CLOCKDELAY
-#       define EINK_CLOCKDELAY 0
-#endif
-
-/* Width of one framebuffer block.
- * Must be divisible by EINK_PPB and evenly divide GDISP_SCREEN_WIDTH. */
-#ifndef EINK_BLOCKWIDTH
-#       define EINK_BLOCKWIDTH 20
-#endif
-
-/* Height of one framebuffer block.
- * Must evenly divide GDISP_SCREEN_WIDTH. */
-#ifndef EINK_BLOCKHEIGHT
-#       define EINK_BLOCKHEIGHT 20
-#endif
-
-/* Number of block buffers to use for framebuffer emulation. */
-#ifndef EINK_NUMBUFFERS
-#       define EINK_NUMBUFFERS 40
-#endif
-
-/* Do a "blinking" clear, i.e. clear to opposite polarity first.
- * This reduces the image persistence. */
-#ifndef EINK_BLINKCLEAR
-#       define EINK_BLINKCLEAR TRUE
-#endif
-
-/* Number of passes to use when clearing the display */
-#ifndef EINK_CLEARCOUNT
-#       define EINK_CLEARCOUNT 10
-#endif
-
-/* Number of passes to use when writing to the display */
-#ifndef EINK_WRITECOUNT
-#       define EINK_WRITECOUNT 4
-#endif
-
-/* ====================================
- *      Lower level driver functions
- * ==================================== */
-
-#include "gdisp_lld_board.h"
-
-/** Delay between signal changes, to give time for IO pins to change state. */
-static inline void clockdelay()
-{
-	#if EINK_CLOCKDELAY & 1
-	asm("nop");
-	#endif
-	#if EINK_CLOCKDELAY & 2
-	asm("nop");
-	asm("nop");
-	#endif
-	#if EINK_CLOCKDELAY & 4
-	asm("nop");
-	asm("nop");
-	asm("nop");
-	asm("nop");
-	#endif
-	#if EINK_CLOCKDELAY & 8
-	asm("nop");
-	asm("nop");
-	asm("nop");
-	asm("nop");
-	asm("nop");
-	asm("nop");
-	asm("nop");
-	asm("nop");
-	#endif
-}
-
-/** Fast vertical clock pulse for gate driver, used during initializations */
-static void vclock_quick()
-{
-	setpin_ckv(TRUE);
-	eink_delay(1);
-	setpin_ckv(FALSE);
-	eink_delay(4);
-}
-
-/** Horizontal clock pulse for clocking data into source driver */
-static void hclock()
-{
-	clockdelay();
-	setpin_cl(TRUE);
-	clockdelay();
-	setpin_cl(FALSE);
-}
-
-/** Start a new vertical gate driver scan from top.
- * Note: Does not clear any previous bits in the shift register,
- *       so you should always scan through the whole display before
- *       starting a new scan.
- */
-static void vscan_start()
-{
-	setpin_gmode(TRUE);
-	vclock_quick();
-	setpin_spv(FALSE);
-	vclock_quick();
-	setpin_spv(TRUE);
-	vclock_quick();
-}
-
-/** Waveform for strobing a row of data onto the display.
- * Attempts to minimize the leaking of color to other rows by having
- * a long idle period after a medium-length strobe period.
- */
-static void vscan_write()
-{
-	setpin_ckv(TRUE);
-	setpin_oe(TRUE);
-	eink_delay(5);
-	setpin_oe(FALSE);
-	setpin_ckv(FALSE);
-	eink_delay(200);
-}
-
-/** Waveform used when clearing the display. Strobes a row of data to the
- * screen, but does not mind some of it leaking to other rows.
- */
-static void vscan_bulkwrite()
-{
-	setpin_ckv(TRUE);
-	eink_delay(20);
-	setpin_ckv(FALSE);
-	eink_delay(200);
-}
-
-/** Waveform for skipping a vertical row without writing anything.
- * Attempts to minimize the amount of change in any row.
- */
-static void vscan_skip()
-{
-	setpin_ckv(TRUE);
-	eink_delay(1);
-	setpin_ckv(FALSE);
-	eink_delay(100);
-}
-
-/** Stop the vertical scan. The significance of this escapes me, but it seems
- * necessary or the next vertical scan may be corrupted.
- */
-static void vscan_stop()
-{
-	setpin_gmode(FALSE);
-	vclock_quick();
-	vclock_quick();
-	vclock_quick();
-	vclock_quick();
-	vclock_quick();
-}
-
-/** Start updating the source driver data (from left to right). */
-static void hscan_start()
-{
-	/* Disable latching and output enable while we are modifying the row. */
-	setpin_le(FALSE);
-	setpin_oe(FALSE);
-	
-	/* The start pulse should remain low for the duration of the row. */
-	setpin_sph(FALSE);
-}
-
-/** Write data to the horizontal row. */
-static void hscan_write(const uint8_t *data, int count)
-{
-	while (count--)
-	{
-		/* Set the next byte on the data pins */
-		setpins_data(*data++);
-		
-		/* Give a clock pulse to the shift register */
-		hclock();
-	}
-}
-
-/** Finish and transfer the row to the source drivers.
- * Does not set the output enable, so the drivers are not yet active. */
-static void hscan_stop()
-{
-	/* End the scan */
-	setpin_sph(TRUE);
-	hclock();
-	
-	/* Latch the new data */
-	setpin_le(TRUE);
-	clockdelay();
-	setpin_le(FALSE);
-}
-
-/** Turn on the power to the E-Ink panel, observing proper power sequencing. */
-static void power_on()
-{
-	unsigned i;
-	
-	/* First the digital power supply and signal levels. */
-	setpower_vdd(TRUE);
-	setpin_le(FALSE);
-	setpin_oe(FALSE);
-	setpin_cl(FALSE);
-	setpin_sph(TRUE);
-	setpins_data(0);
-	setpin_ckv(FALSE);
-	setpin_gmode(FALSE);
-	setpin_spv(TRUE);
-	
-	/* Min. 100 microsecond delay after digital supply */
-	gfxSleepMicroseconds(100);
-	
-	/* Then negative voltages and min. 1000 microsecond delay. */
-	setpower_vneg(TRUE);
-	gfxSleepMicroseconds(1000);
-	
-	/* Finally the positive voltages. */
-	setpower_vpos(TRUE);
-	
-	/* Clear the vscan shift register */
-	vscan_start();
-	for (i = 0; i < GDISP_SCREEN_HEIGHT; i++)
-		vclock_quick();
-	vscan_stop();
-}
-
-/** Turn off the power, observing proper power sequencing. */
-static void power_off()
-{
-	/* First the high voltages */
-	setpower_vpos(FALSE);
-	setpower_vneg(FALSE);
-	
-	/* Wait for any capacitors to drain */
-	gfxSleepMilliseconds(100);
-	
-	/* Then put all signals and digital supply to ground. */
-	setpin_le(FALSE);
-	setpin_oe(FALSE);
-	setpin_cl(FALSE);
-	setpin_sph(FALSE);
-	setpins_data(0);
-	setpin_ckv(FALSE);
-	setpin_gmode(FALSE);
-	setpin_spv(FALSE);
-	setpower_vdd(FALSE);
-}
-
-/* ====================================
- *      Framebuffer emulation layer
- * ==================================== */
-
-#if EINK_PPB == 4
-#define PIXELMASK 3
-#define PIXEL_WHITE 2
-#define PIXEL_BLACK 1
-#define BYTE_WHITE 0xAA
-#define BYTE_BLACK 0x55
-#else
-#error Unsupported EINK_PPB value.
-#endif
-
-#if GDISP_SCREEN_HEIGHT % EINK_BLOCKHEIGHT != 0
-#error GDISP_SCREEN_HEIGHT must be evenly divisible by EINK_BLOCKHEIGHT
-#endif
-
-#if GDISP_SCREEN_WIDTH % EINK_BLOCKWIDTH != 0
-#error GDISP_SCREEN_WIDTH must be evenly divisible by EINK_BLOCKWIDTH
-#endif
-
-#if EINK_BLOCKWIDTH % EINK_PPB != 0
-#error EINK_BLOCKWIDTH must be evenly divisible by EINK_PPB
-#endif
-
-#if EINK_NUMBUFFERS > 254
-#error EINK_NUMBUFFERS must be at most 254.
-#endif
-
-#define BLOCKS_Y (GDISP_SCREEN_HEIGHT / EINK_BLOCKHEIGHT)
-#define BLOCKS_X (GDISP_SCREEN_WIDTH / EINK_BLOCKWIDTH)
-#define WIDTH_BYTES (EINK_BLOCKWIDTH / EINK_PPB)
-
-/* Buffers that store the data for a small area of the display. */
-typedef struct {
-	uint8_t data[EINK_BLOCKHEIGHT][WIDTH_BYTES];
-} block_t;
-
-static uint8_t g_next_block; /* Index of the next free block buffer. */
-static block_t g_blocks[EINK_NUMBUFFERS];
-
-/* Map that stores the buffers associated to each area of the display.
- * Value of 0 means that the block is not allocated.
- * Other values are the index in g_blocks + 1.
- */
-static uint8_t g_blockmap[BLOCKS_Y][BLOCKS_X]; 
-
-/** Check if the row contains any allocated blocks. */
-static bool_t blocks_on_row(unsigned by)
-{
-	unsigned bx;
-	for (bx = 0; bx < BLOCKS_X; bx++)
-	{
-		if (g_blockmap[by][bx] != 0)
-		{
-			return TRUE;
-		}
-	}
-	return FALSE;
-}
-
-/** Write out a block row. */
-static void write_block_row(unsigned by)
-{
-	unsigned bx, dy, dx;
-	for (dy = 0; dy < EINK_BLOCKHEIGHT; dy++)
-	{
-		hscan_start();
-		for (bx = 0; bx < BLOCKS_X; bx++)
-		{
-			if (g_blockmap[by][bx] == 0)
-			{
-				for (dx = 0; dx < WIDTH_BYTES; dx++)
-				{
-					const uint8_t dummy = 0;
-					hscan_write(&dummy, 1);
-				}
-			}
-			else
-			{
-				block_t *block = &g_blocks[g_blockmap[by][bx] - 1];
-				hscan_write(&block->data[dy][0], WIDTH_BYTES);
-			}
-		}
-		hscan_stop();
-		
-		vscan_write();
-	}
-}
-
-/** Clear the block map, i.e. deallocate all blocks */
-static void clear_block_map()
-{
-	unsigned bx, by;
-	for (by = 0; by < BLOCKS_Y; by++)
-	{
-		for (bx = 0; bx < BLOCKS_X; bx++)
-		{
-			g_blockmap[by][bx] = 0;
-		}
-	}
-	
-	g_next_block = 0;
-}
-
-/** Flush all the buffered rows to display. */
-static void flush_buffers()
-{
-	unsigned by, dy, i;
-	
-	for (i = 0; i < EINK_WRITECOUNT; i++)
-	{
-		vscan_start();
-		
-		for (by = 0; by < BLOCKS_Y; by++)
-		{
-			if (!blocks_on_row(by))
-			{
-				/* Skip the whole row of blocks. */
-				for (dy = 0; dy < EINK_BLOCKHEIGHT; dy++)
-				{
-					vscan_skip();
-				}
-			}
-			else
-			{
-				/* Write out the blocks. */
-				write_block_row(by);
-			}
-		}
-		
-		vscan_stop();
-	}
-	
-	clear_block_map();
-}
-
-/** Initialize a newly allocated block. */
-static void zero_block(block_t *block)
-{
-	unsigned dx, dy;
-	for (dy = 0; dy < EINK_BLOCKHEIGHT; dy++)
-	{
-		for (dx = 0; dx < WIDTH_BYTES; dx++)
-		{
-			block->data[dy][dx] = 0;
-		}
-	}
-}
-
-/** Allocate a buffer
- * Automatically flushes if all buffers are full. */
-static block_t *alloc_buffer(unsigned bx, unsigned by)
-{
-	block_t *result;
-	if (g_blockmap[by][bx] == 0)
-	{
-		if (g_next_block >= EINK_NUMBUFFERS)
-		{
-			flush_buffers();
-		}
-		
-		result = &g_blocks[g_next_block];
-		g_blockmap[by][bx] = g_next_block + 1;
-		g_next_block++;
-		zero_block(result);
-		return result;
-	}
-	else
-	{
-		result = &g_blocks[g_blockmap[by][bx] - 1];
-		return result;
-	}
-}
-
-/* ===============================
- *         Public functions
- * =============================== */
-
-bool_t gdisp_lld_init(void)
-{
-	init_board();
-	
-	/* Make sure that all the pins are in "off" state.
-	 * Having any pin high could cause voltage leaking to the
-	 * display, which in turn causes the image to leak slowly away.
-	 */
-	power_off();
-	
-	clear_block_map();
-	
-	/* Initialize the global GDISP structure */
-	GDISP.Width = GDISP_SCREEN_WIDTH;
-	GDISP.Height = GDISP_SCREEN_HEIGHT;
-	GDISP.Orientation = GDISP_ROTATE_0;
-	GDISP.Powermode = powerOff;
-	GDISP.Backlight = 0;
-	GDISP.Contrast = 0;
-	#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
-	GDISP.clipx0 = 0;
-	GDISP.clipy0 = 0;
-	GDISP.clipx1 = GDISP.Width;
-	GDISP.clipy1 = GDISP.Height;
-	#endif
-	
-	return TRUE;
-}
-
-void gdisp_lld_draw_pixel(coord_t x, coord_t y, color_t color)
-{
-	block_t *block;
-	uint8_t byte;
-	unsigned bx, by, dx, dy;
-	uint8_t bitpos;
-	
-	bx = x / EINK_BLOCKWIDTH;
-	by = y / EINK_BLOCKHEIGHT;
-	dx = x % EINK_BLOCKWIDTH;
-	dy = y % EINK_BLOCKHEIGHT;
-	
-	if (bx < 0 || bx >= BLOCKS_X || by < 0 || by >= BLOCKS_Y)
-		return;
-	
-	block = alloc_buffer(bx, by);
-	
-	bitpos = (6 - 2 * (dx % EINK_PPB));
-	byte = block->data[dy][dx / EINK_PPB];
-	byte &= ~(PIXELMASK << bitpos);
-	if (color)
-	{
-		byte |= PIXEL_WHITE << bitpos;
-	}
-	else
-	{
-		byte |= PIXEL_BLACK << bitpos;   
-	}
-	block->data[dy][dx / EINK_PPB] = byte;
-}
-
-#if !GDISP_NEED_CONTROL
-#error You must enable GDISP_NEED_CONTROL for the E-Ink driver.
-#endif
-
-void gdisp_lld_control(unsigned what, void *value) {
-	gdisp_powermode_t newmode;
-	
-	switch(what)
-	{
-		case GDISP_CONTROL_POWER:
-			newmode = (gdisp_powermode_t)value;
-			
-			if (GDISP.Powermode == newmode)
-				return;
-			
-			if (newmode == powerOn)
-			{
-				power_on();
-			}
-			else
-			{
-				flush_buffers();
-				power_off();
-			}
-			GDISP.Powermode = newmode;
-			break;
-			
-		case GDISP_CONTROL_FLUSH:
-			flush_buffers();
-			break;
-	}
-}
-
-/* ===============================
- *       Accelerated routines
- * =============================== */
-
-#if GDISP_HARDWARE_CLEARS
-
-static void subclear(color_t color)
-{
-	unsigned x, y;
-	uint8_t byte;
-	
-	hscan_start();
-	byte = color ? BYTE_WHITE : BYTE_BLACK;
-	for (x = 0; x < GDISP_SCREEN_WIDTH; x++)
-	{
-		hscan_write(&byte, 1);
-	}
-	hscan_stop();
-	
-	setpin_oe(TRUE);
-	vscan_start();
-	for (y = 0; y < GDISP_SCREEN_HEIGHT; y++)
-	{
-		vscan_bulkwrite();
-	}
-	vscan_stop();
-	setpin_oe(FALSE);
-}
-
-void gdisp_lld_clear(color_t color)
-{
-	unsigned i;
-	clear_block_map();
-	
-	if (EINK_BLINKCLEAR)
-	{
-		subclear(!color);
-		gfxSleepMilliseconds(50);
-	}
-	
-	for (i = 0; i < EINK_CLEARCOUNT; i++)
-	{
-		subclear(color);
-		gfxSleepMilliseconds(10);
-	}
-	
-}
-#endif
-
-#endif