diff options
Diffstat (limited to 'drivers/sed156x.c')
| -rw-r--r-- | drivers/sed156x.c | 566 |
1 files changed, 0 insertions, 566 deletions
diff --git a/drivers/sed156x.c b/drivers/sed156x.c deleted file mode 100644 index e9d5ed4..0000000 --- a/drivers/sed156x.c +++ /dev/null @@ -1,566 +0,0 @@ -/* - * (C) Copyright 2003 - * - * Pantelis Antoniou <panto@intracom.gr> - * Intracom S.A. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <watchdog.h> - -#include <sed156x.h> - -#ifdef CONFIG_SED156X - -/* configure according to the selected display */ -#if defined(CONFIG_SED156X_PG12864Q) -#define LCD_WIDTH 128 -#define LCD_HEIGHT 64 -#define LCD_LINES 64 -#define LCD_PAGES 9 -#define LCD_COLUMNS 132 -#else -#error Unsupported SED156x configuration -#endif - -/* include the font data */ -#include <video_font.h> - -#if VIDEO_FONT_WIDTH != 8 || VIDEO_FONT_HEIGHT != 16 -#error Expecting VIDEO_FONT_WIDTH == 8 && VIDEO_FONT_HEIGHT == 16 -#endif - -#define LCD_BYTE_WIDTH (LCD_WIDTH / 8) -#define VIDEO_FONT_BYTE_WIDTH (VIDEO_FONT_WIDTH / 8) - -#define LCD_TEXT_WIDTH (LCD_WIDTH / VIDEO_FONT_WIDTH) -#define LCD_TEXT_HEIGHT (LCD_HEIGHT / VIDEO_FONT_HEIGHT) - -#define LCD_BYTE_LINESZ (LCD_BYTE_WIDTH * VIDEO_FONT_HEIGHT) - -const int sed156x_text_width = LCD_TEXT_WIDTH; -const int sed156x_text_height = LCD_TEXT_HEIGHT; - -/**************************************************************************************/ - -#define SED156X_SPI_RXD() (SED156X_SPI_RXD_PORT & SED156X_SPI_RXD_MASK) - -#define SED156X_SPI_TXD(x) \ - do { \ - if (x) \ - SED156X_SPI_TXD_PORT |= SED156X_SPI_TXD_MASK; \ - else \ - SED156X_SPI_TXD_PORT &= ~SED156X_SPI_TXD_MASK; \ - } while(0) - -#define SED156X_SPI_CLK(x) \ - do { \ - if (x) \ - SED156X_SPI_CLK_PORT |= SED156X_SPI_CLK_MASK; \ - else \ - SED156X_SPI_CLK_PORT &= ~SED156X_SPI_CLK_MASK; \ - } while(0) - -#define SED156X_SPI_CLK_TOGGLE() (SED156X_SPI_CLK_PORT ^= SED156X_SPI_CLK_MASK) - -#define SED156X_SPI_BIT_DELAY() /* no delay */ - -#define SED156X_CS(x) \ - do { \ - if (x) \ - SED156X_CS_PORT |= SED156X_CS_MASK; \ - else \ - SED156X_CS_PORT &= ~SED156X_CS_MASK; \ - } while(0) - -#define SED156X_A0(x) \ - do { \ - if (x) \ - SED156X_A0_PORT |= SED156X_A0_MASK; \ - else \ - SED156X_A0_PORT &= ~SED156X_A0_MASK; \ - } while(0) - -/**************************************************************************************/ - -/*** LCD Commands ***/ - -#define LCD_ON 0xAF /* Display ON */ -#define LCD_OFF 0xAE /* Display OFF */ -#define LCD_LADDR 0x40 /* Display start line set + (6-bit) address */ -#define LCD_PADDR 0xB0 /* Page address set + (4-bit) page */ -#define LCD_CADRH 0x10 /* Column address set upper + (4-bit) column hi */ -#define LCD_CADRL 0x00 /* Column address set lower + (4-bit) column lo */ -#define LCD_ADC_NRM 0xA0 /* ADC select Normal */ -#define LCD_ADC_REV 0xA1 /* ADC select Reverse */ -#define LCD_DSP_NRM 0xA6 /* LCD display Normal */ -#define LCD_DSP_REV 0xA7 /* LCD display Reverse */ -#define LCD_DPT_NRM 0xA4 /* Display all points Normal */ -#define LCD_DPT_ALL 0xA5 /* Display all points ON */ -#define LCD_BIAS9 0xA2 /* LCD bias set 1/9 */ -#define LCD_BIAS7 0xA3 /* LCD bias set 1/7 */ -#define LCD_CAINC 0xE0 /* Read/modify/write */ -#define LCD_CAEND 0xEE /* End */ -#define LCD_RESET 0xE2 /* Reset */ -#define LCD_C_NRM 0xC0 /* Common output mode select Normal direction */ -#define LCD_C_RVS 0xC8 /* Common output mode select Reverse direction */ -#define LCD_PWRMD 0x28 /* Power control set + (3-bit) mode */ -#define LCD_RESRT 0x20 /* V5 v. reg. int. resistor ratio set + (3-bit) ratio */ -#define LCD_EVSET 0x81 /* Electronic volume mode set + byte = (6-bit) volume */ -#define LCD_SIOFF 0xAC /* Static indicator OFF */ -#define LCD_SION 0xAD /* Static indicator ON + byte = (2-bit) mode */ -#define LCD_NOP 0xE3 /* NOP */ -#define LCD_TEST 0xF0 /* Test/Test mode reset (Note: *DO NOT USE*) */ - -/*------------------------------------------------------------------------------- - Compound commands - ------------------------------------------------------------------------------- - Command Description Commands - ---------- ------------------------ ------------------------------------- - POWS_ON POWER SAVER ON command LCD_OFF, LCD_D_ALL - POWS_OFF POWER SAVER OFF command LCD_D_NRM - SLEEPON SLEEP mode LCD_SIOFF, POWS_ON - SLEEPOFF SLEEP mode cancel LCD_D_NRM, LCD_SION, LCD_SIS_??? - STDBYON STAND BY mode LCD_SION, POWS_ON - STDBYOFF STAND BY mode cancel LCD_D_NRM - -------------------------------------------------------------------------------*/ - -/*** LCD various parameters ***/ -#define LCD_PPB 8 /* Pixels per byte (display is B/W, 1 bit per pixel) */ - -/*** LCD Status byte masks ***/ -#define LCD_S_BUSY 0x80 /* Status Read - BUSY mask */ -#define LCD_S_ADC 0x40 /* Status Read - ADC mask */ -#define LCD_S_ONOFF 0x20 /* Status Read - ON/OFF mask */ -#define LCD_S_RESET 0x10 /* Status Read - RESET mask */ - -/*** LCD commands parameter masks ***/ -#define LCD_M_LADDR 0x3F /* Display start line (6-bit) address mask */ -#define LCD_M_PADDR 0x0F /* Page address (4-bit) page mask */ -#define LCD_M_CADRH 0x0F /* Column address upper (4-bit) column hi mask */ -#define LCD_M_CADRL 0x0F /* Column address lower (4-bit) column lo mask */ -#define LCD_M_PWRMD 0x07 /* Power control (3-bit) mode mask */ -#define LCD_M_RESRT 0x07 /* V5 v. reg. int. resistor ratio (3-bit) ratio mask */ -#define LCD_M_EVSET 0x3F /* Electronic volume mode byte (6-bit) volume mask */ -#define LCD_M_SION 0x03 /* Static indicator ON (2-bit) mode mask */ - -/*** LCD Power control cirquits control masks ***/ -#define LCD_PWRBSTR 0x04 /* Power control mode - Booster cirquit ON */ -#define LCD_PWRVREG 0x02 /* Power control mode - Voltage regulator cirquit ON */ -#define LCD_PWRVFOL 0x01 /* Power control mode - Voltage follower cirquit ON */ - -/*** LCD Static indicator states ***/ -#define LCD_SIS_OFF 0x00 /* Static indicator register set - OFF state */ -#define LCD_SIS_BL 0x01 /* Static indicator register set - 1s blink state */ -#define LCD_SIS_RBL 0x02 /* Static indicator register set - .5s rapid blink state */ -#define LCD_SIS_ON 0x03 /* Static indicator register set - constantly on state */ - -/*** LCD functions special parameters (commands) ***/ -#define LCD_PREVP 0x80 /* Page number for moving to previous */ -#define LCD_NEXTP 0x81 /* or next page */ -#define LCD_ERR_P 0xFF /* Error in page number */ - -/*** LCD initialization settings ***/ -#define LCD_BIAS LCD_BIAS9 /* Bias: 1/9 */ -#define LCD_ADCMODE LCD_ADC_NRM /* ADC mode: normal */ -#define LCD_COMDIR LCD_C_NRM /* Common output mode: normal */ -#define LCD_RRATIO 0 /* Resistor ratio: 0 */ -#define LCD_CNTRST 0x1C /* electronic volume: 1Ch */ -#define LCD_POWERM (LCD_PWRBSTR | LCD_PWRVREG | LCD_PWRVFOL) /* Power mode: All on */ - -/**************************************************************************************/ - -static inline unsigned int sed156x_transfer(unsigned int val) -{ - unsigned int rx; - int b; - - rx = 0; b = 8; - while (--b >= 0) { - SED156X_SPI_TXD(val & 0x80); - val <<= 1; - SED156X_SPI_CLK_TOGGLE(); - SED156X_SPI_BIT_DELAY(); - rx <<= 1; - if (SED156X_SPI_RXD()) - rx |= 1; - SED156X_SPI_CLK_TOGGLE(); - SED156X_SPI_BIT_DELAY(); - } - - return rx; -} - -unsigned int sed156x_data_transfer(unsigned int val) -{ - unsigned int rx; - - SED156X_SPI_CLK(1); - SED156X_CS(0); - SED156X_A0(1); - - rx = sed156x_transfer(val); - - SED156X_CS(1); - - return rx; -} - -void sed156x_data_block_transfer(const u8 *p, int size) -{ - SED156X_SPI_CLK(1); - SED156X_CS(0); - SED156X_A0(1); - - while (--size >= 0) - sed156x_transfer(*p++); - - SED156X_CS(1); -} - -unsigned int sed156x_cmd_transfer(unsigned int val) -{ - unsigned int rx; - - SED156X_SPI_CLK(1); - SED156X_CS(0); - SED156X_A0(0); - - rx = sed156x_transfer(val); - - SED156X_CS(1); - SED156X_A0(1); - - return rx; -} - -/******************************************************************************/ - -static u8 hw_screen[LCD_PAGES][LCD_COLUMNS]; -static u8 last_hw_screen[LCD_PAGES][LCD_COLUMNS]; -static u8 sw_screen[LCD_BYTE_WIDTH * LCD_HEIGHT]; - -void sed156x_sync(void) -{ - int i, j, last_page; - u8 *d; - const u8 *s, *e, *b, *r; - u8 v0, v1, v2, v3, v4, v5, v6, v7; - - /* copy and rotate sw_screen to hw_screen */ - for (i = 0; i < LCD_HEIGHT / 8; i++) { - - d = &hw_screen[i][0]; - s = &sw_screen[LCD_BYTE_WIDTH * 8 * i + LCD_BYTE_WIDTH - 1]; - - for (j = 0; j < LCD_WIDTH / 8; j++) { - - v0 = s[0 * LCD_BYTE_WIDTH]; - v1 = s[1 * LCD_BYTE_WIDTH]; - v2 = s[2 * LCD_BYTE_WIDTH]; - v3 = s[3 * LCD_BYTE_WIDTH]; - v4 = s[4 * LCD_BYTE_WIDTH]; - v5 = s[5 * LCD_BYTE_WIDTH]; - v6 = s[6 * LCD_BYTE_WIDTH]; - v7 = s[7 * LCD_BYTE_WIDTH]; - - d[0] = ((v7 & 0x01) << 7) | - ((v6 & 0x01) << 6) | - ((v5 & 0x01) << 5) | - ((v4 & 0x01) << 4) | - ((v3 & 0x01) << 3) | - ((v2 & 0x01) << 2) | - ((v1 & 0x01) << 1) | - (v0 & 0x01) ; - - d[1] = ((v7 & 0x02) << 6) | - ((v6 & 0x02) << 5) | - ((v5 & 0x02) << 4) | - ((v4 & 0x02) << 3) | - ((v3 & 0x02) << 2) | - ((v2 & 0x02) << 1) | - ((v1 & 0x02) << 0) | - ((v0 & 0x02) >> 1) ; - - d[2] = ((v7 & 0x04) << 5) | - ((v6 & 0x04) << 4) | - ((v5 & 0x04) << 3) | - ((v4 & 0x04) << 2) | - ((v3 & 0x04) << 1) | - (v2 & 0x04) | - ((v1 & 0x04) >> 1) | - ((v0 & 0x04) >> 2) ; - - d[3] = ((v7 & 0x08) << 4) | - ((v6 & 0x08) << 3) | - ((v5 & 0x08) << 2) | - ((v4 & 0x08) << 1) | - (v3 & 0x08) | - ((v2 & 0x08) >> 1) | - ((v1 & 0x08) >> 2) | - ((v0 & 0x08) >> 3) ; - - d[4] = ((v7 & 0x10) << 3) | - ((v6 & 0x10) << 2) | - ((v5 & 0x10) << 1) | - (v4 & 0x10) | - ((v3 & 0x10) >> 1) | - ((v2 & 0x10) >> 2) | - ((v1 & 0x10) >> 3) | - ((v0 & 0x10) >> 4) ; - - d[5] = ((v7 & 0x20) << 2) | - ((v6 & 0x20) << 1) | - (v5 & 0x20) | - ((v4 & 0x20) >> 1) | - ((v3 & 0x20) >> 2) | - ((v2 & 0x20) >> 3) | - ((v1 & 0x20) >> 4) | - ((v0 & 0x20) >> 5) ; - - d[6] = ((v7 & 0x40) << 1) | - (v6 & 0x40) | - ((v5 & 0x40) >> 1) | - ((v4 & 0x40) >> 2) | - ((v3 & 0x40) >> 3) | - ((v2 & 0x40) >> 4) | - ((v1 & 0x40) >> 5) | - ((v0 & 0x40) >> 6) ; - - d[7] = (v7 & 0x80) | - ((v6 & 0x80) >> 1) | - ((v5 & 0x80) >> 2) | - ((v4 & 0x80) >> 3) | - ((v3 & 0x80) >> 4) | - ((v2 & 0x80) >> 5) | - ((v1 & 0x80) >> 6) | - ((v0 & 0x80) >> 7) ; - - d += 8; - s--; - } - } - - /* and now output only the differences */ - for (i = 0; i < LCD_PAGES; i++) { - - b = &hw_screen[i][0]; - e = &hw_screen[i][LCD_COLUMNS]; - - d = &last_hw_screen[i][0]; - s = b; - - last_page = -1; - - /* update only the differences */ - do { - while (s < e && *s == *d) { - s++; - d++; - } - if (s == e) - break; - r = s; - while (s < e && *s != *d) - *d++ = *s++; - - j = r - b; - - if (i != last_page) { - sed156x_cmd_transfer(LCD_PADDR | i); - last_page = i; - } - - sed156x_cmd_transfer(LCD_CADRH | ((j >> 4) & 0x0F)); - sed156x_cmd_transfer(LCD_CADRL | (j & 0x0F)); - sed156x_data_block_transfer(r, s - r); - - } while (s < e); - } - -/******** - for (i = 0; i < LCD_PAGES; i++) { - sed156x_cmd_transfer(LCD_PADDR | i); - sed156x_cmd_transfer(LCD_CADRH | 0); - sed156x_cmd_transfer(LCD_CADRL | 0); - sed156x_data_block_transfer(&hw_screen[i][0], LCD_COLUMNS); - } - memcpy(last_hw_screen, hw_screen, sizeof(last_hw_screen)); -********/ -} - -void sed156x_clear(void) -{ - memset(sw_screen, 0, sizeof(sw_screen)); -} - -void sed156x_output_at(int x, int y, const char *str, int size) -{ - int i, j; - u8 *p; - const u8 *s; - - if ((unsigned int)y >= LCD_TEXT_HEIGHT || (unsigned int)x >= LCD_TEXT_WIDTH) - return; - - p = &sw_screen[y * VIDEO_FONT_HEIGHT * LCD_BYTE_WIDTH + x * VIDEO_FONT_BYTE_WIDTH]; - - while (--size >= 0) { - - s = &video_fontdata[((int)*str++ & 0xff) * VIDEO_FONT_BYTE_WIDTH * VIDEO_FONT_HEIGHT]; - for (i = 0; i < VIDEO_FONT_HEIGHT; i++) { - for (j = 0; j < VIDEO_FONT_BYTE_WIDTH; j++) - *p++ = *s++; - p += LCD_BYTE_WIDTH - VIDEO_FONT_BYTE_WIDTH; - } - p -= (LCD_BYTE_LINESZ - VIDEO_FONT_BYTE_WIDTH); - - if (x >= LCD_TEXT_WIDTH) - break; - x++; - } -} - -void sed156x_reverse_at(int x, int y, int size) -{ - int i, j; - u8 *p; - - if ((unsigned int)y >= LCD_TEXT_HEIGHT || (unsigned int)x >= LCD_TEXT_WIDTH) - return; - - p = &sw_screen[y * VIDEO_FONT_HEIGHT * LCD_BYTE_WIDTH + x * VIDEO_FONT_BYTE_WIDTH]; - - while (--size >= 0) { - - for (i = 0; i < VIDEO_FONT_HEIGHT; i++) { - for (j = 0; j < VIDEO_FONT_BYTE_WIDTH; j++, p++) - *p = ~*p; - p += LCD_BYTE_WIDTH - VIDEO_FONT_BYTE_WIDTH; - } - p -= (LCD_BYTE_LINESZ - VIDEO_FONT_BYTE_WIDTH); - - if (x >= LCD_TEXT_WIDTH) - break; - x++; - } -} - -void sed156x_scroll_line(void) -{ - memmove(&sw_screen[0], - &sw_screen[LCD_BYTE_LINESZ], - LCD_BYTE_WIDTH * (LCD_HEIGHT - VIDEO_FONT_HEIGHT)); -} - -void sed156x_scroll(int dx, int dy) -{ - u8 *p1 = NULL, *p2 = NULL, *p3 = NULL; /* pacify gcc */ - int adx, ady, i, sz; - - adx = dx > 0 ? dx : -dx; - ady = dy > 0 ? dy : -dy; - - /* overscroll? erase everything */ - if (adx >= LCD_TEXT_WIDTH || ady >= LCD_TEXT_HEIGHT) { - memset(sw_screen, 0, sizeof(sw_screen)); - return; - } - - sz = LCD_BYTE_LINESZ * ady; - if (dy > 0) { - p1 = &sw_screen[0]; - p2 = &sw_screen[sz]; - p3 = &sw_screen[LCD_BYTE_WIDTH * LCD_HEIGHT - sz]; - } else if (dy < 0) { - p1 = &sw_screen[sz]; - p2 = &sw_screen[0]; - p3 = &sw_screen[0]; - } - - if (ady > 0) { - memmove(p1, p2, LCD_BYTE_WIDTH * LCD_HEIGHT - sz); - memset(p3, 0, sz); - } - - sz = VIDEO_FONT_BYTE_WIDTH * adx; - if (dx > 0) { - p1 = &sw_screen[0]; - p2 = &sw_screen[0] + sz; - p3 = &sw_screen[0] + LCD_BYTE_WIDTH - sz; - } else if (dx < 0) { - p1 = &sw_screen[0] + sz; - p2 = &sw_screen[0]; - p3 = &sw_screen[0]; - } - - /* xscroll */ - if (adx > 0) { - for (i = 0; i < LCD_HEIGHT; i++) { - memmove(p1, p2, LCD_BYTE_WIDTH - sz); - memset(p3, 0, sz); - p1 += LCD_BYTE_WIDTH; - p2 += LCD_BYTE_WIDTH; - p3 += LCD_BYTE_WIDTH; - } - } -} - -void sed156x_init(void) -{ - int i; - - SED156X_CS(1); - SED156X_A0(1); - - /* Send initialization commands to the LCD */ - sed156x_cmd_transfer(LCD_OFF); /* Turn display OFF */ - sed156x_cmd_transfer(LCD_BIAS); /* set the LCD Bias, */ - sed156x_cmd_transfer(LCD_ADCMODE); /* ADC mode, */ - sed156x_cmd_transfer(LCD_COMDIR); /* common output mode, */ - sed156x_cmd_transfer(LCD_RESRT | LCD_RRATIO); /* resistor ratio, */ - sed156x_cmd_transfer(LCD_EVSET); /* electronic volume, */ - sed156x_cmd_transfer(LCD_CNTRST); - sed156x_cmd_transfer(LCD_PWRMD | LCD_POWERM); /* and power mode */ - sed156x_cmd_transfer(LCD_PADDR | 0); /* cursor home */ - sed156x_cmd_transfer(LCD_CADRH | 0); - sed156x_cmd_transfer(LCD_CADRL | 0); - sed156x_cmd_transfer(LCD_LADDR | 0); /* and display start line */ - sed156x_cmd_transfer(LCD_DSP_NRM); /* LCD display Normal */ - - /* clear everything */ - memset(sw_screen, 0, sizeof(sw_screen)); - memset(hw_screen, 0, sizeof(hw_screen)); - memset(last_hw_screen, 0, sizeof(last_hw_screen)); - - for (i = 0; i < LCD_PAGES; i++) { - sed156x_cmd_transfer(LCD_PADDR | i); - sed156x_cmd_transfer(LCD_CADRH | 0); - sed156x_cmd_transfer(LCD_CADRL | 0); - sed156x_data_block_transfer(&hw_screen[i][0], LCD_COLUMNS); - } - - sed156x_clear(); - sed156x_sync(); - sed156x_cmd_transfer(LCD_ON); /* Turn display ON */ -} - -#endif /* CONFIG_SED156X */ |