diff options
Diffstat (limited to 'drv_T6963.c')
| -rw-r--r-- | drv_T6963.c | 208 |
1 files changed, 107 insertions, 101 deletions
diff --git a/drv_T6963.c b/drv_T6963.c index e256075..b7c28d5 100644 --- a/drv_T6963.c +++ b/drv_T6963.c @@ -1,4 +1,4 @@ -/* $Id: drv_T6963.c,v 1.10 2004/06/20 10:09:54 reinelt Exp $ +/* $Id: drv_T6963.c,v 1.11 2004/06/26 09:27:21 reinelt Exp $ * * new style driver for T6963-based displays * @@ -23,6 +23,12 @@ * * * $Log: drv_T6963.c,v $ + * Revision 1.11 2004/06/26 09:27:21 reinelt + * + * added '-W' to CFLAGS + * changed all C++ comments to C ones ('//' => '/* */') + * cleaned up a lot of signed/unsigned mistakes + * * Revision 1.10 2004/06/20 10:09:54 reinelt * * 'const'ified the whole source @@ -127,25 +133,25 @@ unsigned char *Buffer1, *Buffer2; static int bug=0; -// **************************************** -// *** hardware dependant functions *** -// **************************************** +/****************************************/ +/*** hardware dependant functions ***/ +/****************************************/ -// perform normal status check +/* perform normal status check */ static void drv_T6_status1 (void) { int n; - // turn off data line drivers + /* turn off data line drivers */ drv_generic_parport_direction (1); - // lower CE and RD + /* lower CE and RD */ drv_generic_parport_control (SIGNAL_CE | SIGNAL_RD, 0); - // Access Time: 150 ns + /* Access Time: 150 ns */ ndelay(150); - // wait for STA0=1 and STA1=1 + /* wait for STA0=1 and STA1=1 */ n=0; do { rep_nop(); @@ -156,32 +162,32 @@ static void drv_T6_status1 (void) } } while ((drv_generic_parport_read() & 0x03) != 0x03); - // rise RD and CE + /* rise RD and CE */ drv_generic_parport_control (SIGNAL_RD | SIGNAL_CE, SIGNAL_RD | SIGNAL_CE); - // Output Hold Time: 50 ns + /* Output Hold Time: 50 ns */ ndelay(50); - // turn on data line drivers + /* turn on data line drivers */ drv_generic_parport_direction (0); } -// perform status check in "auto mode" +/* perform status check in "auto mode" */ static void drv_T6_status2 (void) { int n; - // turn off data line drivers + /* turn off data line drivers */ drv_generic_parport_direction (1); - // lower RD and CE + /* lower RD and CE */ drv_generic_parport_control (SIGNAL_RD | SIGNAL_CE, 0); - // Access Time: 150 ns + /* Access Time: 150 ns */ ndelay(150); - // wait for STA3=1 + /* wait for STA3=1 */ n=0; do { rep_nop(); @@ -192,102 +198,102 @@ static void drv_T6_status2 (void) } } while ((drv_generic_parport_read() & 0x08) != 0x08); - // rise RD and CE + /* rise RD and CE */ drv_generic_parport_control (SIGNAL_RD | SIGNAL_CE, SIGNAL_RD | SIGNAL_CE); - // Output Hold Time: 50 ns + /* Output Hold Time: 50 ns */ ndelay(50); - // turn on data line drivers + /* turn on data line drivers */ drv_generic_parport_direction (0); } static void drv_T6_write_cmd (const unsigned char cmd) { - // wait until the T6963 is idle + /* wait until the T6963 is idle */ drv_T6_status1(); - // put data on DB1..DB8 + /* put data on DB1..DB8 */ drv_generic_parport_data (cmd); - // lower WR and CE + /* lower WR and CE */ drv_generic_parport_control (SIGNAL_WR | SIGNAL_CE, 0); - // Pulse width + /* Pulse width */ ndelay(80); - // rise WR and CE + /* rise WR and CE */ drv_generic_parport_control (SIGNAL_WR | SIGNAL_CE, SIGNAL_WR | SIGNAL_CE); - // Data Hold Time + /* Data Hold Time */ ndelay(40); } static void drv_T6_write_data (const unsigned char data) { - // wait until the T6963 is idle + /* wait until the T6963 is idle */ drv_T6_status1(); - // put data on DB1..DB8 + /* put data on DB1..DB8 */ drv_generic_parport_data (data); - // lower C/D + /* lower C/D */ drv_generic_parport_control (SIGNAL_CD, 0); - // C/D Setup Time + /* C/D Setup Time */ ndelay(20); - // lower WR and CE + /* lower WR and CE */ drv_generic_parport_control (SIGNAL_WR | SIGNAL_CE, 0); - // Pulse Width + /* Pulse Width */ ndelay(80); - // rise WR and CE + /* rise WR and CE */ drv_generic_parport_control (SIGNAL_WR | SIGNAL_CE, SIGNAL_WR | SIGNAL_CE); - // Data Hold Time + /* Data Hold Time */ ndelay(40); - // rise CD + /* rise CD */ drv_generic_parport_control (SIGNAL_CD, SIGNAL_CD); } static void drv_T6_write_auto (const unsigned char data) { - // wait until the T6963 is idle + /* wait until the T6963 is idle */ drv_T6_status2(); - // put data on DB1..DB8 + /* put data on DB1..DB8 */ drv_generic_parport_data (data); - // lower C/D + /* lower C/D */ drv_generic_parport_control (SIGNAL_CD, 0); - // C/D Setup Time + /* C/D Setup Time */ ndelay(20); - // lower WR and CE + /* lower WR and CE */ drv_generic_parport_control (SIGNAL_WR | SIGNAL_CE, 0); - // Pulse Width + /* Pulse Width */ ndelay(80); - // rise WR and CE + /* rise WR and CE */ drv_generic_parport_control (SIGNAL_WR | SIGNAL_CE, SIGNAL_WR | SIGNAL_CE); - // Data Hold Time + /* Data Hold Time */ ndelay(40); - // rise CD + /* rise CD */ drv_generic_parport_control (SIGNAL_CD, SIGNAL_CD); } -#if 0 // not used +#if 0 /* not used */ static void drv_T6_send_byte (const unsigned char cmd, const unsigned char data) { drv_T6_write_data(data); @@ -307,8 +313,8 @@ static void drv_T6_clear(const unsigned short addr, const int len) { int i; - drv_T6_send_word (0x24, addr); // Set Adress Pointer - drv_T6_write_cmd(0xb0); // Set Data Auto Write + drv_T6_send_word (0x24, addr); /* Set Adress Pointer */ + drv_T6_write_cmd(0xb0); /* Set Data Auto Write */ for (i=0; i<len; i++) { drv_T6_write_auto(0); if (bug) { @@ -317,7 +323,7 @@ static void drv_T6_clear(const unsigned short addr, const int len) } } drv_T6_status2(); - drv_T6_write_cmd(0xb2); // Auto Reset + drv_T6_write_cmd(0xb2); /* Auto Reset */ } @@ -325,8 +331,8 @@ static void drv_T6_copy(const unsigned short addr, const unsigned char *data, co { int i; - drv_T6_send_word (0x24, 0x0200+addr); // Set Adress Pointer - drv_T6_write_cmd(0xb0); // Set Data Auto Write + drv_T6_send_word (0x24, 0x0200+addr); /* Set Adress Pointer */ + drv_T6_write_cmd(0xb0); /* Set Data Auto Write */ for (i=0; i<len; i++) { drv_T6_write_auto(*(data++)); if (bug) { @@ -335,7 +341,7 @@ static void drv_T6_copy(const unsigned short addr, const unsigned char *data, co } } drv_T6_status2(); - drv_T6_write_cmd(0xb2); // Auto Reset + drv_T6_write_cmd(0xb2); /* Auto Reset */ } @@ -348,16 +354,16 @@ static void drv_T6_blit(const int row, const int col, const int height, const in for (c=col; c<col+width; c++) { unsigned char mask = 1<<(XRES-1-c%XRES); if (drv_generic_graphic_FB[r*LCOLS+c]) { - // set bit + /* set bit */ Buffer1[(r*DCOLS+c)/XRES] |= mask; } else { - // clear bit + /* clear bit */ Buffer1[(r*DCOLS+c)/XRES] &= ~mask; } } } - // max address + /* max address */ m=((row+height-1)*DCOLS+col+width)/XRES; for (i=(row*DCOLS+col)/XRES; i<=m; i++) { @@ -396,7 +402,7 @@ static int drv_T6_start (const char *section) return -1; } - // read display size from config + /* read display size from config */ s=cfg_get(section, "Size", NULL); if (s==NULL || *s=='\0') { error ("%s: no '%s.Size' entry from %s", Name, section, cfg_source()); @@ -423,14 +429,14 @@ static int drv_T6_start (const char *section) return -1; } - // Fixme: provider other fonts someday... + /* Fixme: provider other fonts someday... */ if (XRES!=6 && YRES!=8) { error ("%s: bad Font '%s' from %s (only 6x8 at the moment)", Name, s, cfg_source()); return -1; } - TROWS=DROWS/YRES; // text rows - TCOLS=DCOLS/XRES; // text cols + TROWS=DROWS/YRES; /* text rows */ + TCOLS=DCOLS/XRES; /* text cols */ Buffer1=malloc(TCOLS*DROWS); if (Buffer1==NULL) { @@ -458,69 +464,69 @@ static int drv_T6_start (const char *section) if ((SIGNAL_RD=drv_generic_parport_wire_ctrl ("RD", "AUTOFD"))==0xff) return -1; if ((SIGNAL_WR=drv_generic_parport_wire_ctrl ("WR", "INIT") )==0xff) return -1; - // rise CE, CD, RD and WR + /* rise CE, CD, RD and WR */ drv_generic_parport_control (SIGNAL_CE | SIGNAL_CD | SIGNAL_RD | SIGNAL_WR, SIGNAL_CE | SIGNAL_CD | SIGNAL_RD | SIGNAL_WR); - // set direction: write + /* set direction: write */ drv_generic_parport_direction (0); - // initialize display + /* initialize display */ - drv_T6_send_word (0x40, 0x0000); // Set Text Home Address - drv_T6_send_word (0x41, TCOLS); // Set Text Area + drv_T6_send_word (0x40, 0x0000); /* Set Text Home Address */ + drv_T6_send_word (0x41, TCOLS); /* Set Text Area */ - drv_T6_send_word (0x42, 0x0200); // Set Graphic Home Address - drv_T6_send_word (0x43, TCOLS); // Set Graphic Area + drv_T6_send_word (0x42, 0x0200); /* Set Graphic Home Address */ + drv_T6_send_word (0x43, TCOLS); /* Set Graphic Area */ - drv_T6_write_cmd (0x80); // Mode Set: OR mode, Internal CG RAM mode - drv_T6_send_word (0x22, 0x0002); // Set Offset Register - drv_T6_write_cmd (0x98); // Set Display Mode: Curser off, Text off, Graphics on - drv_T6_write_cmd (0xa0); // Set Cursor Pattern: 1 line cursor - drv_T6_send_word (0x21, 0x0000); // Set Cursor Pointer to (0,0) + drv_T6_write_cmd (0x80); /* Mode Set: OR mode, Internal CG RAM mode */ + drv_T6_send_word (0x22, 0x0002); /* Set Offset Register */ + drv_T6_write_cmd (0x98); /* Set Display Mode: Curser off, Text off, Graphics on */ + drv_T6_write_cmd (0xa0); /* Set Cursor Pattern: 1 line cursor */ + drv_T6_send_word (0x21, 0x0000); /* Set Cursor Pointer to (0,0) */ - // clear display + /* clear display */ - // upper half + /* upper half */ rows=TROWS>8?8:TROWS; - drv_T6_clear(0x0000, TCOLS*rows); // clear text area - drv_T6_clear(0x0200, TCOLS*rows*8); // clear graphic area + drv_T6_clear(0x0000, TCOLS*rows); /* clear text area */ + drv_T6_clear(0x0200, TCOLS*rows*8); /* clear graphic area */ - // lower half + /* lower half */ if (TROWS>8) { rows=TROWS-8; - drv_T6_clear(0x8000, TCOLS*rows); // clear text area #2 - drv_T6_clear(0x8200, TCOLS*rows*8); // clear graphic area #2 + drv_T6_clear(0x8000, TCOLS*rows); /* clear text area #2 */ + drv_T6_clear(0x8200, TCOLS*rows*8); /* clear graphic area #2 */ } return 0; } -// **************************************** -// *** plugins *** -// **************************************** +/****************************************/ +/*** plugins ***/ +/****************************************/ -// none at the moment... +/* none at the moment... */ -// **************************************** -// *** widget callbacks *** -// **************************************** +/****************************************/ +/*** widget callbacks ***/ +/****************************************/ -// using drv_generic_graphic_draw(W) -// using drv_generic_graphic_icon_draw(W) -// using drv_generic_graphic_bar_draw(W) +/* using drv_generic_graphic_draw(W) */ +/* using drv_generic_graphic_icon_draw(W) */ +/* using drv_generic_graphic_bar_draw(W) */ -// **************************************** -// *** exported functions *** -// **************************************** +/****************************************/ +/*** exported functions ***/ +/****************************************/ -// list models +/* list models */ int drv_T6_list (void) { int i; @@ -532,20 +538,20 @@ int drv_T6_list (void) } -// initialize driver & display +/* initialize driver & display */ int drv_T6_init (const char *section, const int quiet) { WIDGET_CLASS wc; int ret; - // real worker functions + /* real worker functions */ drv_generic_graphic_real_blit = drv_T6_blit; - // start display + /* start display */ if ((ret=drv_T6_start (section))!=0) return ret; - // initialize generic graphic driver + /* initialize generic graphic driver */ if ((ret=drv_generic_graphic_init(section, Name))!=0) return ret; @@ -558,30 +564,30 @@ int drv_T6_init (const char *section, const int quiet) } } - // register text widget + /* register text widget */ wc=Widget_Text; wc.draw=drv_generic_graphic_draw; widget_register(&wc); - // register icon widget + /* register icon widget */ wc=Widget_Icon; wc.draw=drv_generic_graphic_icon_draw; widget_register(&wc); - // register bar widget + /* register bar widget */ wc=Widget_Bar; wc.draw=drv_generic_graphic_bar_draw; widget_register(&wc); - // register plugins - // none at the moment... + /* register plugins */ + /* none at the moment... */ return 0; } -// close driver & display +/* close driver & display */ int drv_T6_quit (const int quiet) { info("%s: shutting down.", Name); |