# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1475877842 0
# Node ID 384fbd61c252b22ece80c2709b671bce88f997e4
# Parent  a0c5d28798fe1540f24c1e38b9a410a3205f558b
src/cs/drivers/drv_app/r2d/lcds/c139: import from tcs211-c139

diff -r a0c5d28798fe -r 384fbd61c252 src/cs/drivers/drv_app/r2d/lcds/c139/colors.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cs/drivers/drv_app/r2d/lcds/c139/colors.h	Fri Oct 07 22:04:02 2016 +0000
@@ -0,0 +1,16 @@
+/*
+ * TI's BMI code does not seem to have an existing configuration for small
+ * color displays, only large color, large mono and small mono - hence in the
+ * present configuration we are telling TI's code that we have a mono display.
+ * But the real LCD on the C139 is 16-bit color.  Here we define the physical
+ * color values to which TI's black and white will be mapped.
+ *
+ * We are also pretending to be the 84x48 pix LCD on TI's C-Sample, hence we
+ * are displaying a 84x48 pix UI on a physical 96x64 pix LCD.  We center the
+ * virtual display in the physical one, and the border color is defined here
+ * as well.
+ */
+
+#define	LCD16_COLOR_BLACK	0x0000
+#define	LCD16_COLOR_WHITE	0xFFFF
+#define	LCD16_COLOR_BORDER	0x5555
diff -r a0c5d28798fe -r 384fbd61c252 src/cs/drivers/drv_app/r2d/lcds/c139/r2d_task_i.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cs/drivers/drv_app/r2d/lcds/c139/r2d_task_i.c	Fri Oct 07 22:04:02 2016 +0000
@@ -0,0 +1,80 @@
+#include "r2d/lcds/c139/colors.h"
+
+void c139_uwire_xmit(UINT16 cmd)
+{
+	* (volatile UINT16 *) TDR = cmd << 7;
+	* (volatile UINT16 *) CSR |= NB_BITS_WR_9 + CS_CMD + START ; // transmit command data
+	while (((* (volatile UINT16 *) CSR) & CSRB) != 0 ); // wait for end of WRITE
+	* (volatile UINT16 *) CSR &= ~CS_CMD; // clears Chip Select 	
+}
+
+void c139_lcd_ctrl_cmd(UINT8 cmd, UINT8 param)
+{
+	c139_uwire_xmit(cmd);
+	c139_uwire_xmit(param | 0x100);
+}
+
+void c139_set_lcd_addr_region(UINT8 xstart, UINT8 xend,
+				UINT8 ystart, UINT8 yend)
+{
+	c139_lcd_ctrl_cmd(0x10, xstart);
+	c139_lcd_ctrl_cmd(0x11, ystart);
+	c139_lcd_ctrl_cmd(0x12, xend);
+	c139_lcd_ctrl_cmd(0x13, yend);
+	c139_lcd_ctrl_cmd(0x14, xstart);
+	c139_lcd_ctrl_cmd(0x15, ystart);
+}
+
+void c139_lcd_send_pix(UINT16 pixval)
+{
+	c139_uwire_xmit((pixval >> 8) | 0x100);
+	c139_uwire_xmit((pixval & 0xFF) | 0x100);
+}
+
+void r2d_lcd_power_on(void)
+{
+}
+
+void r2d_lcd_power_off(void)
+{
+}
+
+static int get_pix_from_sw_fb(UINT32 *fb, UINT16 x, UINT16 y)
+{
+	UINT32 *p, mask;
+	UINT16 yword, ybit;
+
+	/* mirroring */
+	x = R2D_WIDTH - x;
+	y = R2D_HEIGHT - y;
+	yword = y >> 5;
+	ybit = y & 31;
+	p = fb + x * R2D_MWHEIGHT + yword;
+	mask = 1 << ybit;
+	if (*p & mask)
+		return(1);
+	else
+		return(0);
+}
+
+void r2d_refresh(void)
+{
+	UINT16 x, y;
+	UINT32 *fb;
+
+	fb = r2d_g_framebuffer->p_memory_words;
+
+	/* set the LCD up to refresh the 84x48 area */
+	c139_set_lcd_addr_region(6, 89, 8, 55);
+	/* send the pixels */
+	for (y = 0; y < R2D_HEIGHT; y++) {
+		for (x = 0; x < R2D_WIDTH; x++) {
+			if (get_pix_from_sw_fb(fb, x, y))
+				c139_lcd_send_pix(LCD16_COLOR_BLACK);
+			else
+				c139_lcd_send_pix(LCD16_COLOR_WHITE);
+		}
+	}
+
+	r2d_reinit_update_region();
+}
diff -r a0c5d28798fe -r 384fbd61c252 src/cs/drivers/drv_app/r2d/lcds/c139/r2d_task_init_i.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cs/drivers/drv_app/r2d/lcds/c139/r2d_task_init_i.c	Fri Oct 07 22:04:02 2016 +0000
@@ -0,0 +1,51 @@
+#include "r2d/lcds/c139/colors.h"
+
+#define R2D_MB_PRIM_SIZE 2000
+
+extern void c139_lcd_ctrl_cmd(UINT8 cmd, UINT8 param);
+extern void c139_set_lcd_addr_region(UINT8 xstart, UINT8 xend,
+					UINT8 ystart, UINT8 yend);
+extern void c139_lcd_send_pix(UINT16 pixval);
+
+void uwire_init_lcd(void)
+{
+	* ( UINT16 *) CNTL_RST &= ~(0x04); // releases reset_out
+	* ( UINT16 *) CNTL_RST |= (0x04); // set reset_out to 0
+	rvf_delay(RVF_MS_TO_TICKS(5));    // waits for 5 ms
+	* ( UINT16 *) CNTL_RST &= ~(0x04); // releases reset_out
+
+	* (volatile UINT16 *) SR1 = CS0_FRQ_FINT_2;
+	* (volatile UINT16 *) SR3 = SR3_CLK_EN; // enables the uwire clock
+	* (volatile UINT16 *) CSR = INDEX_CS0; // selects CS0
+}
+
+static void r2d_refresh_task_init(void)
+{
+	UINT16 i;
+
+	uwire_init_lcd();
+	rvf_delay(RVF_MS_TO_TICKS(5));    // waits for 5 ms
+
+	/* LCD controller init */
+	c139_lcd_ctrl_cmd(0x3F, 0x01);
+	c139_lcd_ctrl_cmd(0x20, 0x03);
+	c139_lcd_ctrl_cmd(0x31, 0x03);
+
+	/* initial hw framebuffer clearing */
+	c139_set_lcd_addr_region(0, 95, 0, 63);
+	for (i = 0; i < 96 * 64; i++)
+		c139_lcd_send_pix(LCD16_COLOR_BORDER);
+}
+
+static void r2d_refresh_task_kill(void)
+{
+}
+
+static void r2d_dithering_init(void)
+{
+   R2D_MALLOC(r2d_mb_id,UINT32,sizeof(UINT32)*4,r2d_g_dithering_matrix);
+   r2d_g_dithering_matrix[0]=0;
+   r2d_g_dithering_matrix[1]=2;
+   r2d_g_dithering_matrix[2]=3;
+   r2d_g_dithering_matrix[3]=1;
+}