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authorWilly Tarreau <w@1wt.eu>2008-11-22 11:29:33 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2009-01-06 13:52:30 -0800
commit698b1515f03914386ad9cc033d62447e5d43f880 (patch)
tree8ae9ea7dadb81c8a24c70d5889703fd4dc85ed91
parent7005b58458e4beecaf5efacb872c456bc7d3541a (diff)
Staging: panel: major checkpatch cleanup
All of the 401 errors, and 108 of the 235 warnings reported by checkpatch were cleared. The only remanining warnings left concern lines larger than 80 characters. This cleanup will be performed last. Signed-off-by: Willy Tarreau <w@1wt.eu> Cc: Frank Menne <frank.menne@hsm.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat
-rw-r--r--drivers/staging/panel/panel.c3316
1 files changed, 1715 insertions, 1601 deletions
diff --git a/drivers/staging/panel/panel.c b/drivers/staging/panel/panel.c
index e021f5c4e07..dcbad349e58 100644
--- a/drivers/staging/panel/panel.c
+++ b/drivers/staging/panel/panel.c
@@ -1,75 +1,25 @@
/*
- * Front panel driver for Linux - 20000810 - Willy Tarreau - willy@meta-x.org.
- * It includes and LCD display (/dev/lcd), a 4-key keypad (/dev/keypad), and a
- * smart card reader (/dev/smartcard).
+ * Front panel driver for Linux
+ * Copyright (C) 2000-2008, Willy Tarreau <w@1wt.eu>
*
- * Updates for this driver may be found here :
+ * 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.
*
- * http://w.ods.org/linux/kernel/lcdpanel/
+ * This code drives an LCD module (/dev/lcd), and a keypad (/dev/keypad)
+ * connected to a parallel printer port.
*
- * the driver skeleton has been stolen from nvram.c which was clearly written.
+ * The LCD module may either be an HD44780-like 8-bit parallel LCD, or a 1-bit
+ * serial module compatible with Samsung's KS0074. The pins may be connected in
+ * any combination, everything is programmable.
*
- * Changes:
- * 2000/08/10
- * - keypad now scrolls LCD when not opened
- * - released 0.5.1
- * 2000/08/10
- * - bug fixes
- * - released 0.5.2
- * 2000/08/10
- * - Reposition LCD when opening /dev/keypad (WIP)
- * - Released 0.5.3
- * 2001/02/04
- * - Start of port to kernel 2.4.1
- * 2001/03/11
- * - implementation of a 24-key keyboard scanner with less electronics
- * around, thus allowing to release the IRQ line.
- * 2001/03/25
- * - the driver now compiles and works with both 2.4.2 and 2.2.18 kernels
- * 2001/04/22
- * - implementation of KS0074-based serial LCD (load with lcd_enabled=2 and lcd_hwidth=16)
- * 2001/04/29
- * - added back-light support, released 0.7.1
- * 2001/05/01
- * - added charset conversion table for ks0074, released 0.7.2
- * 2001/05/08
- * - start of rewriting towards v0.8
- * 2001/10/21
- * - replaced linux/malloc.h with linux/slab.h to be 2.4 compliant
- * - definition of the multi-layer input system with its naming scheme
- * - profile support for simplified configuration
- * 2001/10/28
- * - smartcard now works for telecards. /dev/smartcard returns the card serial number
- * 2001/11/10
- * - fix too short sleep for lcd_clear
- * 2004/05/09
- * - add support for hantronix LCD modules (RS on SELECTIN instead of AUTOLF)
- * (load with lcd_enabled=3 or profile=3)
- * 2004/06/04
- * - changed all parallel LCD functions to be more generic. Now any
- * connection of control signal is allowed with lcd_*_pin.
- * 2004/07/23
- * - cleaned up some code
- * - added support for keypads with inverted inputs
- * - added support for Nexcom's LCD/Keypad on profile 4
- * - added character generator for chars 0-7 : "\e[LG{0-7}{8*2 hexdigits};"
- * 2004/07/29 : 0.9.0
- * - deprecated lcd_enabled and keypad_enabled in profit of *_type
- * - changed configuration so that the user can choose everything at
- * kernel compilation time
- * 2004/07/31 : 0.9.2
- * - fixed a stupid copy-paste bug affecting only the serial LCD
- * - moved display geometries to lcd_init() to avoid problems with custom profiles.
- * 2004/08/06 : 0.9.3
- * - added a system notifier callback to print the system state on the LCD
- * during reboots or halts.
+ * The keypad consists in a matrix of push buttons connecting input pins to
+ * data output pins or to the ground. The combinations have to be hard-coded
+ * in the driver, though several profiles exist and adding new ones is easy.
*
- * 2005/05/20 : 0.9.4
- * - first working port on kernel 2.6
- *
- * 2006/12/18 : 0.9.5
- * - fixed a long standing bug in 2.6 causing panics during reboot/kexec
- * if the LCD was enabled but not initialized due to lack of parport.
+ * Several profiles are provided for commonly found LCD+keypad modules on the
+ * market, such as those found in Nexcom's appliances.
*
* FIXME:
* - the initialization/deinitialization process is very dirty and should
@@ -94,7 +44,7 @@
#include <linux/smp_lock.h>
#include <linux/interrupt.h>
#include <linux/miscdevice.h>
-#include <linux/slab.h> // previously <linux/malloc.h>
+#include <linux/slab.h>
#include <linux/ioport.h>
#include <linux/fcntl.h>
#include <linux/init.h>
@@ -107,7 +57,7 @@
#include <linux/reboot.h>
#include <linux/utsrelease.h>
-#include <asm/io.h>
+#include <linux/io.h>
#include <asm/uaccess.h>
#include <asm/system.h>
@@ -133,18 +83,18 @@
/* converts an r_str() input to an active high, bits string : 000BAOSE */
#define PNL_PINPUT(a) ((((unsigned char)(a)) ^ 0x7F) >> 3)
-#define PNL_PBUSY 0x80 /* inverted input, active low */
-#define PNL_PACK 0x40 /* direct input, active low */
-#define PNL_POUTPA 0x20 /* direct input, active high */
-#define PNL_PSELECD 0x10 /* direct input, active high */
-#define PNL_PERRORP 0x08 /* direct input, active low */
+#define PNL_PBUSY 0x80 /* inverted input, active low */
+#define PNL_PACK 0x40 /* direct input, active low */
+#define PNL_POUTPA 0x20 /* direct input, active high */
+#define PNL_PSELECD 0x10 /* direct input, active high */
+#define PNL_PERRORP 0x08 /* direct input, active low */
-#define PNL_PBIDIR 0x20 /* bi-directional ports */
-#define PNL_PINTEN 0x10 /* high to read data in or-ed with data out */
-#define PNL_PSELECP 0x08 /* inverted output, active low */
-#define PNL_PINITP 0x04 /* direct output, active low */
-#define PNL_PAUTOLF 0x02 /* inverted output, active low */
-#define PNL_PSTROBE 0x01 /* inverted output */
+#define PNL_PBIDIR 0x20 /* bi-directional ports */
+#define PNL_PINTEN 0x10 /* high to read data in or-ed with data out */
+#define PNL_PSELECP 0x08 /* inverted output, active low */
+#define PNL_PINITP 0x04 /* direct output, active low */
+#define PNL_PAUTOLF 0x02 /* inverted output, active low */
+#define PNL_PSTROBE 0x01 /* inverted output */
#define PNL_PD0 0x01
#define PNL_PD1 0x02
@@ -171,7 +121,7 @@
#define PIN_NOT_SET 127
/* some smartcard-specific signals */
-#define PNL_SC_IO PNL_PD1 /* Warning! inverted output, 0=highZ */
+#define PNL_SC_IO PNL_PD1 /* Warning! inverted output, 0=highZ */
#define PNL_SC_RST PNL_PD2
#define PNL_SC_CLK PNL_PD3
#define PNL_SC_RW PNL_PD4
@@ -195,53 +145,53 @@
#define r_ctr(x) (parport_read_control((x)->port))
#define r_dtr(x) (parport_read_data((x)->port))
#define r_str(x) (parport_read_status((x)->port))
-#define w_ctr(x,y) do { parport_write_control((x)->port, (y)); } while (0)
-#define w_dtr(x,y) do { parport_write_data((x)->port, (y)); } while (0)
+#define w_ctr(x, y) do { parport_write_control((x)->port, (y)); } while (0)
+#define w_dtr(x, y) do { parport_write_data((x)->port, (y)); } while (0)
/* this defines which bits are to be used and which ones to be ignored */
-static __u8 scan_mask_o = 0; /* logical or of the output bits involved in the scan matrix */
-static __u8 scan_mask_i = 0; /* logical or of the input bits involved in the scan matrix */
+static __u8 scan_mask_o; /* logical or of the output bits involved in the scan matrix */
+static __u8 scan_mask_i; /* logical or of the input bits involved in the scan matrix */
-typedef __u64 pmask_t;
+typedef __u64 pmask_t;
enum input_type {
- INPUT_TYPE_STD,
- INPUT_TYPE_KBD,
+ INPUT_TYPE_STD,
+ INPUT_TYPE_KBD,
};
enum input_state {
- INPUT_ST_LOW,
- INPUT_ST_RISING,
- INPUT_ST_HIGH,
- INPUT_ST_FALLING,
+ INPUT_ST_LOW,
+ INPUT_ST_RISING,
+ INPUT_ST_HIGH,
+ INPUT_ST_FALLING,
};
struct logical_input {
- struct list_head list;
- pmask_t mask;
- pmask_t value;
- enum input_type type;
- enum input_state state;
- __u8 rise_time, fall_time;
- __u8 rise_timer, fall_timer, high_timer;
-
- union {
- struct { /* this structure is valid when type == INPUT_TYPE_STD */
- void(*press_fct)(int);
- void(*release_fct)(int);
- int press_data;
- int release_data;
- } std;
- struct { /* this structure is valid when type == INPUT_TYPE_KBD */
- /* strings can be full-length (ie. non null-terminated) */
- char press_str[sizeof(void *) + sizeof (int)];
- char repeat_str[sizeof(void *) + sizeof (int)];
- char release_str[sizeof(void *) + sizeof (int)];
- } kbd;
- } u;
+ struct list_head list;
+ pmask_t mask;
+ pmask_t value;
+ enum input_type type;
+ enum input_state state;
+ __u8 rise_time, fall_time;
+ __u8 rise_timer, fall_timer, high_timer;
+
+ union {
+ struct { /* this structure is valid when type == INPUT_TYPE_STD */
+ void (*press_fct) (int);
+ void (*release_fct) (int);
+ int press_data;
+ int release_data;
+ } std;
+ struct { /* this structure is valid when type == INPUT_TYPE_KBD */
+ /* strings can be full-length (ie. non null-terminated) */
+ char press_str[sizeof(void *) + sizeof(int)];
+ char repeat_str[sizeof(void *) + sizeof(int)];
+ char release_str[sizeof(void *) + sizeof(int)];
+ } kbd;
+ } u;
};
-LIST_HEAD(logical_inputs); /* list of all defined logical inputs */
+LIST_HEAD(logical_inputs); /* list of all defined logical inputs */
/* physical contacts history
* Physical contacts are a 45 bits string of 9 groups of 5 bits each.
@@ -254,34 +204,34 @@ LIST_HEAD(logical_inputs); /* list of all defined logical inputs */
* <-----unused------><gnd><d07><d06><d05><d04><d03><d02><d01><d00>
*/
static pmask_t phys_read; /* what has just been read from the I/O ports */
-static pmask_t phys_read_prev; /* previous phys_read */
-static pmask_t phys_curr; /* stabilized phys_read (phys_read|phys_read_prev) */
-static pmask_t phys_prev; /* previous phys_curr */
-static char inputs_stable = 0; /* 0 means that at least one logical signal needs be computed */
+static pmask_t phys_read_prev; /* previous phys_read */
+static pmask_t phys_curr; /* stabilized phys_read (phys_read|phys_read_prev) */
+static pmask_t phys_prev; /* previous phys_curr */
+static char inputs_stable; /* 0 means that at least one logical signal needs be computed */
/* these variables are specific to the smartcard */
static __u8 smartcard_data[SMARTCARD_BYTES];
-static int smartcard_ptr = 0; /* pointer to half bytes in smartcard_data */
+static int smartcard_ptr; /* pointer to half bytes in smartcard_data */
/* these variables are specific to the keypad */
static char keypad_buffer[KEYPAD_BUFFER];
-static int keypad_buflen = 0;
-static int keypad_start = 0;
-static char keypressed = 0;
+static int keypad_buflen;
+static int keypad_start;
+static char keypressed;
static wait_queue_head_t keypad_read_wait;
static wait_queue_head_t smartcard_read_wait;
/* lcd-specific variables */
-static unsigned long int lcd_flags = 0; /* contains the LCD config state */
-static unsigned long int lcd_addr_x = 0; /* contains the LCD X offset */
-static unsigned long int lcd_addr_y = 0; /* contains the LCD Y offset */
-static char lcd_escape[LCD_ESCAPE_LEN+1]; /* current escape sequence, 0 terminated */
-static int lcd_escape_len = -1; /* not in escape state. >=0 = escape cmd len */
+static unsigned long int lcd_flags; /* contains the LCD config state */
+static unsigned long int lcd_addr_x; /* contains the LCD X offset */
+static unsigned long int lcd_addr_y; /* contains the LCD Y offset */
+static char lcd_escape[LCD_ESCAPE_LEN + 1]; /* current escape sequence, 0 terminated */
+static int lcd_escape_len = -1; /* not in escape state. >=0 = escape cmd len */
static int lcd_height = -1;
-static int lcd_width = -1;
-static int lcd_hwidth = -1; /* hardware buffer width (usually 64) */
-static int lcd_bwidth = -1; /* internal buffer width (usually 40) */
+static int lcd_width = -1;
+static int lcd_hwidth = -1; /* hardware buffer width (usually 64) */
+static int lcd_bwidth = -1; /* internal buffer width (usually 40) */
/*
* These are the parallel port pins the LCD control signals are connected to.
@@ -291,7 +241,7 @@ static int lcd_bwidth = -1; /* internal buffer width (usually 40) */
*
* WARNING! no check will be performed about collisions with keypad/smartcard !
*/
-static int lcd_e_pin = PIN_NOT_SET;
+static int lcd_e_pin = PIN_NOT_SET;
static int lcd_rs_pin = PIN_NOT_SET;
static int lcd_rw_pin = PIN_NOT_SET;
static int lcd_bl_pin = PIN_NOT_SET;
@@ -303,9 +253,9 @@ static int lcd_da_pin = PIN_NOT_SET;
* _d_ are values for data port, _c_ are for control port.
* [0] = signal OFF, [1] = signal ON, [2] = mask
*/
-#define BIT_CLR 0
-#define BIT_SET 1
-#define BIT_MSK 2
+#define BIT_CLR 0
+#define BIT_SET 1
+#define BIT_MSK 2
#define BIT_STATES 3
/*
* one entry for each bit on the LCD
@@ -399,7 +349,7 @@ static unsigned char lcd_bits[LCD_PORTS][LCD_BITS][BIT_STATES];
#define DEFAULT_PARPORT CONFIG_PANEL_PARPORT
#endif
-#if DEFAULT_PROFILE==0 /* custom */
+#if DEFAULT_PROFILE == 0 /* custom */
#ifdef CONFIG_PANEL_KEYPAD
#undef DEFAULT_KEYPAD
#define DEFAULT_KEYPAD CONFIG_PANEL_KEYPAD
@@ -478,12 +428,12 @@ static unsigned char lcd_bits[LCD_PORTS][LCD_BITS][BIT_STATES];
#endif /* DEFAULT_PROFILE == 0 */
/* global variables */
-static int smartcard_open_cnt = 0; /* #times opened */
-static int keypad_open_cnt = 0; /* #times opened */
-static int lcd_open_cnt = 0; /* #times opened */
+static int smartcard_open_cnt; /* #times opened */
+static int keypad_open_cnt; /* #times opened */
+static int lcd_open_cnt; /* #times opened */
static int profile = DEFAULT_PROFILE;
-static struct pardevice *pprt = NULL;
+static struct pardevice *pprt;
static int parport = -1;
static int lcd_enabled = -1;
static int lcd_type = -1;
@@ -495,157 +445,205 @@ static int smartcard_enabled = -1;
static int lcd_initialized, keypad_initialized, smartcard_initialized;
-static int light_tempo = 0;
+static int light_tempo;
-static char lcd_must_clear = 0;
-static char lcd_left_shift = 0;
-static char init_in_progress = 0;
+static char lcd_must_clear;
+static char lcd_left_shift;
+static char init_in_progress;
-static void(*lcd_write_cmd)(int) = NULL;
-static void(*lcd_write_data)(int) = NULL;
-static void(*lcd_clear_fast)(void) = NULL;
+static void (*lcd_write_cmd) (int);
+static void (*lcd_write_data) (int);
+static void (*lcd_clear_fast) (void);
-static spinlock_t pprt_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(pprt_lock);
static struct timer_list scan_timer;
#ifdef MODULE
MODULE_DESCRIPTION("Generic parallel port LCD/Keypad/Smartcard driver");
-module_param(parport, int, 0000);MODULE_PARM_DESC(parport, "Parallel port index (0=lpt1, 1=lpt2, ...)");
-module_param(lcd_height, int, 0000);MODULE_PARM_DESC(lcd_height, "Number of lines on the LCD");
-module_param(lcd_width, int, 0000);MODULE_PARM_DESC(lcd_width, "Number of columns on the LCD");
-module_param(lcd_bwidth, int, 0000);MODULE_PARM_DESC(lcd_bwidth, "Internal LCD line width (40)");
-module_param(lcd_hwidth, int, 0000);MODULE_PARM_DESC(lcd_hwidth, "LCD line hardware address (64)");
-module_param(lcd_enabled, int, 0000);MODULE_PARM_DESC(lcd_enabled, "Deprecated option, use lcd_type instead");
-module_param(keypad_enabled, int, 0000);MODULE_PARM_DESC(keypad_enabled, "Deprecated option, use keypad_type instead");
-module_param(lcd_type, int, 0000);MODULE_PARM_DESC(lcd_type, "LCD type: 0=none, 1=old //, 2=serial ks0074, 3=hantronix //, 4=nexcom //, 5=compiled-in");
-module_param(lcd_proto, int, 0000);MODULE_PARM_DESC(lcd_proto, "LCD communication: 0=parallel (//), 1=serial");
-module_param(lcd_charset, int, 0000);MODULE_PARM_DESC(lcd_charset, "LCD character set: 0=standard, 1=KS0074");
-module_param(keypad_type, int, 0000);MODULE_PARM_DESC(keypad_type, "Keypad type: 0=none, 1=old 6 keys, 2=new 6+1 keys, 3=nexcom 4 keys");
-module_param(smartcard_enabled, int, 0000);MODULE_PARM_DESC(smartcard_enabled, "Smartcard reader: 0=disabled (default), 1=enabled");
-module_param(profile, int, 0000); MODULE_PARM_DESC(profile, "1=16x2 old kp; 2=serial 16x2, new kp; 3=16x2 hantronix; 4=16x2 nexcom; default=40x2, old kp");
-
-module_param(lcd_e_pin, int, 0000); MODULE_PARM_DESC(lcd_e_pin, "# of the // port pin connected to LCD 'E' signal, with polarity (-17..17)");
-module_param(lcd_rs_pin, int, 0000);MODULE_PARM_DESC(lcd_rs_pin, "# of the // port pin connected to LCD 'RS' signal, with polarity (-17..17)");
-module_param(lcd_rw_pin, int, 0000);MODULE_PARM_DESC(lcd_rw_pin, "# of the // port pin connected to LCD 'RW' signal, with polarity (-17..17)");
-module_param(lcd_bl_pin, int, 0000);MODULE_PARM_DESC(lcd_bl_pin, "# of the // port pin connected to LCD backlight, with polarity (-17..17)");
-module_param(lcd_da_pin, int, 0000);MODULE_PARM_DESC(lcd_da_pin, "# of the // port pin connected to serial LCD 'SDA' signal, with polarity (-17..17)");
-module_param(lcd_cl_pin, int, 0000);MODULE_PARM_DESC(lcd_cl_pin, "# of the // port pin connected to serial LCD 'SCL' signal, with polarity (-17..17)");
+module_param(parport, int, 0000);
+MODULE_PARM_DESC(parport, "Parallel port index (0=lpt1, 1=lpt2, ...)");
+module_param(lcd_height, int, 0000);
+MODULE_PARM_DESC(lcd_height, "Number of lines on the LCD");
+module_param(lcd_width, int, 0000);
+MODULE_PARM_DESC(lcd_width, "Number of columns on the LCD");
+module_param(lcd_bwidth, int, 0000);
+MODULE_PARM_DESC(lcd_bwidth, "Internal LCD line width (40)");
+module_param(lcd_hwidth, int, 0000);
+MODULE_PARM_DESC(lcd_hwidth, "LCD line hardware address (64)");
+module_param(lcd_enabled, int, 0000);
+MODULE_PARM_DESC(lcd_enabled, "Deprecated option, use lcd_type instead");
+module_param(keypad_enabled, int, 0000);
+MODULE_PARM_DESC(keypad_enabled, "Deprecated option, use keypad_type instead");
+module_param(lcd_type, int, 0000);
+MODULE_PARM_DESC(lcd_type,
+ "LCD type: 0=none, 1=old //, 2=serial ks0074, 3=hantronix //, 4=nexcom //, 5=compiled-in");
+module_param(lcd_proto, int, 0000);
+MODULE_PARM_DESC(lcd_proto, "LCD communication: 0=parallel (//), 1=serial");
+module_param(lcd_charset, int, 0000);
+MODULE_PARM_DESC(lcd_charset, "LCD character set: 0=standard, 1=KS0074");
+module_param(keypad_type, int, 0000);
+MODULE_PARM_DESC(keypad_type,
+ "Keypad type: 0=none, 1=old 6 keys, 2=new 6+1 keys, 3=nexcom 4 keys");
+module_param(smartcard_enabled, int, 0000);
+MODULE_PARM_DESC(smartcard_enabled,
+ "Smartcard reader: 0=disabled (default), 1=enabled");
+module_param(profile, int, 0000);
+MODULE_PARM_DESC(profile,
+ "1=16x2 old kp; 2=serial 16x2, new kp; 3=16x2 hantronix; 4=16x2 nexcom; default=40x2, old kp");
+
+module_param(lcd_e_pin, int, 0000);
+MODULE_PARM_DESC(lcd_e_pin,
+ "# of the // port pin connected to LCD 'E' signal, with polarity (-17..17)");
+module_param(lcd_rs_pin, int, 0000);
+MODULE_PARM_DESC(lcd_rs_pin,
+ "# of the // port pin connected to LCD 'RS' signal, with polarity (-17..17)");
+module_param(lcd_rw_pin, int, 0000);
+MODULE_PARM_DESC(lcd_rw_pin,
+ "# of the // port pin connected to LCD 'RW' signal, with polarity (-17..17)");
+module_param(lcd_bl_pin, int, 0000);
+MODULE_PARM_DESC(lcd_bl_pin,
+ "# of the // port pin connected to LCD backlight, with polarity (-17..17)");
+module_param(lcd_da_pin, int, 0000);
+MODULE_PARM_DESC(lcd_da_pin,
+ "# of the // port pin connected to serial LCD 'SDA' signal, with polarity (-17..17)");
+module_param(lcd_cl_pin, int, 0000);
+MODULE_PARM_DESC(lcd_cl_pin,
+ "# of the // port pin connected to serial LCD 'SCL' signal, with polarity (-17..17)");
#endif
-static unsigned char *lcd_char_conv = NULL;
+static unsigned char *lcd_char_conv;
/* for some LCD drivers (ks0074) we need a charset conversion table. */
static unsigned char lcd_char_conv_ks0074[256] = {
- /* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
- /* 0x00 */ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
- /* 0x10 */ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
- /* 0x20 */ 0x20, 0x21, 0x22, 0x23, 0xa2, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
- /* 0x30 */ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
- /* 0x40 */ 0xa0, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
- /* 0x50 */ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0xfa, 0xfb, 0xfc, 0x1d, 0xc4,
- /* 0x60 */ 0x96, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
- /* 0x70 */ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0xfd, 0xfe, 0xff, 0xce, 0x20,
- /* 0x80 */ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
- /* 0x90 */ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
- /* 0xA0 */ 0x20, 0x40, 0xb1, 0xa1, 0x24, 0xa3, 0xfe, 0x5f, 0x22, 0xc8, 0x61, 0x14, 0x97, 0x2d, 0xad, 0x96,
- /* 0xB0 */ 0x80, 0x8c, 0x82, 0x83, 0x27, 0x8f, 0x86, 0xdd, 0x2c, 0x81, 0x6f, 0x15, 0x8b, 0x8a, 0x84, 0x60,
- /* 0xC0 */ 0xe2, 0xe2, 0xe2, 0x5b, 0x5b, 0xae, 0xbc, 0xa9, 0xc5, 0xbf, 0xc6, 0xf1, 0xe3, 0xe3, 0xe3, 0xe3,
- /* 0xD0 */ 0x44, 0x5d, 0xa8, 0xe4, 0xec, 0xec, 0x5c, 0x78, 0xab, 0xa6, 0xe5, 0x5e, 0x5e, 0xe6, 0xaa, 0xbe,
- /* 0xE0 */ 0x7f, 0xe7, 0xaf, 0x7b, 0x7b, 0xaf, 0xbd, 0xc8, 0xa4, 0xa5, 0xc7, 0xf6, 0xa7, 0xe8, 0x69, 0x69,
- /* 0xF0 */ 0xed, 0x7d, 0xa8, 0xe4, 0xec, 0x5c, 0x5c, 0x25, 0xac, 0xa6, 0xea, 0xef, 0x7e, 0xeb, 0xb2, 0x79,
+ /* 0|8 1|9 2|A 3|B 4|C 5|D 6|E 7|F */
+ /* 0x00 */ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ /* 0x08 */ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+ /* 0x10 */ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+ /* 0x18 */ 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
+ /* 0x20 */ 0x20, 0x21, 0x22, 0x23, 0xa2, 0x25, 0x26, 0x27,
+ /* 0x28 */ 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
+ /* 0x30 */ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
+ /* 0x38 */ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
+ /* 0x40 */ 0xa0, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
+ /* 0x48 */ 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
+ /* 0x50 */ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
+ /* 0x58 */ 0x58, 0x59, 0x5a, 0xfa, 0xfb, 0xfc, 0x1d, 0xc4,
+ /* 0x60 */ 0x96, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
+ /* 0x68 */ 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
+ /* 0x70 */ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
+ /* 0x78 */ 0x78, 0x79, 0x7a, 0xfd, 0xfe, 0xff, 0xce, 0x20,
+ /* 0x80 */ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ /* 0x88 */ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ /* 0x90 */ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ /* 0x98 */ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
+ /* 0xA0 */ 0x20, 0x40, 0xb1, 0xa1, 0x24, 0xa3, 0xfe, 0x5f,
+ /* 0xA8 */ 0x22, 0xc8, 0x61, 0x14, 0x97, 0x2d, 0xad, 0x96,
+ /* 0xB0 */ 0x80, 0x8c, 0x82, 0x83, 0x27, 0x8f, 0x86, 0xdd,
+ /* 0xB8 */ 0x2c, 0x81, 0x6f, 0x15, 0x8b, 0x8a, 0x84, 0x60,
+ /* 0xC0 */ 0xe2, 0xe2, 0xe2, 0x5b, 0x5b, 0xae, 0xbc, 0xa9,
+ /* 0xC8 */ 0xc5, 0xbf, 0xc6, 0xf1, 0xe3, 0xe3, 0xe3, 0xe3,
+ /* 0xD0 */ 0x44, 0x5d, 0xa8, 0xe4, 0xec, 0xec, 0x5c, 0x78,
+ /* 0xD8 */ 0xab, 0xa6, 0xe5, 0x5e, 0x5e, 0xe6, 0xaa, 0xbe,
+ /* 0xE0 */ 0x7f, 0xe7, 0xaf, 0x7b, 0x7b, 0xaf, 0xbd, 0xc8,
+ /* 0xE8 */ 0xa4, 0xa5, 0xc7, 0xf6, 0xa7, 0xe8, 0x69, 0x69,
+ /* 0xF0 */ 0xed, 0x7d, 0xa8, 0xe4, 0xec, 0x5c, 0x5c, 0x25,
+ /* 0xF8 */ 0xac, 0xa6, 0xea, 0xef, 0x7e, 0xeb, 0xb2, 0x79,
};
char old_keypad_profile[][4][9] = {
- {"S0", "Left\n", "Left\n", ""},
- {"S1", "Down\n", "Down\n", ""},
- {"S2", "Up\n", "Up\n", ""},
- {"S3", "Right\n", "Right\n", ""},
- {"S4", "Esc\n", "Esc\n", ""},
- {"S5", "Ret\n", "Ret\n", ""},
- {"","","",""}
+ {"S0", "Left\n", "Left\n", ""},
+ {"S1", "Down\n", "Down\n", ""},
+ {"S2", "Up\n", "Up\n", ""},
+ {"S3", "Right\n", "Right\n", ""},
+ {"S4", "Esc\n", "Esc\n", ""},
+ {"S5", "Ret\n", "Ret\n", ""},
+ {"", "", "", ""}
};
/* signals, press, repeat, release */
char new_keypad_profile[][4][9] = {
- {"S0", "Left\n", "Left\n", ""},
- {"S1", "Down\n", "Down\n", ""},
- {"S2", "Up\n", "Up\n", ""},
- {"S3", "Right\n", "Right\n", ""},
- {"S4s5", "", "Esc\n", "Esc\n"},
- {"s4S5", "", "Ret\n", "Ret\n"},
- {"S4S5", "Help\n", "", ""},
- /* add new signals above this line */
- {"","","",""}
+ {"S0", "Left\n", "Left\n", ""},
+ {"S1", "Down\n", "Down\n", ""},
+ {"S2", "Up\n", "Up\n", ""},
+ {"S3", "Right\n", "Right\n", ""},
+ {"S4s5", "", "Esc\n", "Esc\n"},
+ {"s4S5", "", "Ret\n", "Ret\n"},
+ {"S4S5", "Help\n", "", ""},
+ /* add new signals above this line */
+ {"", "", "", ""}
};
/* signals, press, repeat, release */
char nexcom_keypad_profile[][4][9] = {
- {"a-p-e-", "Down\n", "Down\n", ""}, // Down
- {"a-p-E-", "Ret\n", "Ret\n", ""}, // Enter
- {"a-P-E-", "Esc\n", "Esc\n", ""}, // Esc
- {"a-P-e-", "Up\n", "Up\n", ""}, // Up
- /* add new signals above this line */
- {"","","",""}
+ {"a-p-e-", "Down\n", "Down\n", ""},
+ {"a-p-E-", "Ret\n", "Ret\n", ""},
+ {"a-P-E-", "Esc\n", "Esc\n", ""},
+ {"a-P-e-", "Up\n", "Up\n", ""},
+ /* add new signals above this line */
+ {"", "", "", ""}
};
static char (*keypad_profile)[4][9] = old_keypad_profile;
/* FIXME: this should be converted to a bit array containing signals states */
static struct {
- unsigned char e; /* parallel LCD E (data latch on falling edge) */
- unsigned char rs; /* parallel LCD RS (0 = cmd, 1 = data) */
- unsigned char rw; /* parallel LCD R/W (0 = W, 1 = R) */
- unsigned char bl; /* parallel LCD backlight (0 = off, 1 = on) */
- unsigned char cl; /* serial LCD clock (latch on rising edge) */
- unsigned char da; /* serial LCD data */
+ unsigned char e; /* parallel LCD E (data latch on falling edge) */
+ unsigned char rs; /* parallel LCD RS (0 = cmd, 1 = data) */
+ unsigned char rw; /* parallel LCD R/W (0 = W, 1 = R) */
+ unsigned char bl; /* parallel LCD backlight (0 = off, 1 = on) */
+ unsigned char cl; /* serial LCD clock (latch on rising edge) */
+ unsigned char da; /* serial LCD data */
} bits;
static void init_scan_timer(void);
/* sets data port bits according to current signals values */
-static int set_data_bits(void) {
- int val, bit;
-
- val = r_dtr(pprt);
- for (bit = 0; bit < LCD_BITS; bit++)
- val &= lcd_bits[LCD_PORT_D][bit][BIT_MSK];
-
- val |= lcd_bits[LCD_PORT_D][LCD_BIT_E][bits.e]
- | lcd_bits[LCD_PORT_D][LCD_BIT_RS][bits.rs]
- | lcd_bits[LCD_PORT_D][LCD_BIT_RW][bits.rw]
- | lcd_bits[LCD_PORT_D][LCD_BIT_BL][bits.bl]
- | lcd_bits[LCD_PORT_D][LCD_BIT_CL][bits.cl]
- | lcd_bits[LCD_PORT_D][LCD_BIT_DA][bits.da];
-
- w_dtr(pprt, val);
- return val;
+static int set_data_bits(void)
+{
+ int val, bit;
+
+ val = r_dtr(pprt);
+ for (bit = 0; bit < LCD_BITS; bit++)
+ val &= lcd_bits[LCD_PORT_D][bit][BIT_MSK];
+
+ val |= lcd_bits[LCD_PORT_D][LCD_BIT_E][bits.e]
+ | lcd_bits[LCD_PORT_D][LCD_BIT_RS][bits.rs]
+ | lcd_bits[LCD_PORT_D][LCD_BIT_RW][bits.rw]
+ | lcd_bits[LCD_PORT_D][LCD_BIT_BL][bits.bl]
+ | lcd_bits[LCD_PORT_D][LCD_BIT_CL][bits.cl]
+ | lcd_bits[LCD_PORT_D][LCD_BIT_DA][bits.da];
+
+ w_dtr(pprt, val);
+ return val;
}
/* sets ctrl port bits according to current signals values */
-static int set_ctrl_bits(void) {
- int val, bit;
-
- val = r_ctr(pprt);
- for (bit = 0; bit < LCD_BITS; bit++)
- val &= lcd_bits[LCD_PORT_C][bit][BIT_MSK];
-
- val |= lcd_bits[LCD_PORT_C][LCD_BIT_E][bits.e]
- | lcd_bits[LCD_PORT_C][LCD_BIT_RS][bits.rs]
- | lcd_bits[LCD_PORT_C][LCD_BIT_RW][bits.rw]
- | lcd_bits[LCD_PORT_C][LCD_BIT_BL][bits.bl]
- | lcd_bits[LCD_PORT_C][LCD_BIT_CL][bits.cl]
- | lcd_bits[LCD_PORT_C][LCD_BIT_DA][bits.da];
-
- w_ctr(pprt, val);
- return val;
+static int set_ctrl_bits(void)
+{
+ int val, bit;
+
+ val = r_ctr(pprt);
+ for (bit = 0; bit < LCD_BITS; bit++)
+ val &= lcd_bits[LCD_PORT_C][bit][BIT_MSK];
+
+ val |= lcd_bits[LCD_PORT_C][LCD_BIT_E][bits.e]
+ | lcd_bits[LCD_PORT_C][LCD_BIT_RS][bits.rs]
+ | lcd_bits[LCD_PORT_C][LCD_BIT_RW][bits.rw]
+ | lcd_bits[LCD_PORT_C][LCD_BIT_BL][bits.bl]
+ | lcd_bits[LCD_PORT_C][LCD_BIT_CL][bits.cl]
+ | lcd_bits[LCD_PORT_C][LCD_BIT_DA][bits.da];
+
+ w_ctr(pprt, val);
+ return val;
}
/* sets ctrl & data port bits according to current signals values */
-static void set_bits(void) {
- set_data_bits();
- set_ctrl_bits();
+static void set_bits(void)
+{
+ set_data_bits();
+ set_ctrl_bits();
}
/*
@@ -657,266 +655,285 @@ static void set_bits(void) {
* out(dport, in(dport) & d_val[2] | d_val[signal_state])
* out(cport, in(cport) & c_val[2] | c_val[signal_state])
*/
-void pin_to_bits(int pin, unsigned char *d_val, unsigned char *c_val) {
- int d_bit, c_bit, inv;
-
- d_val[0] = c_val[0] = d_val[1] = c_val[1] = 0;
- d_val[2] = c_val[2] = 0xFF;
-
- if (pin == 0)
- return;
-
- inv = (pin < 0);
- if (inv)
- pin = -pin;
-
- d_bit = c_bit = 0;
-
- switch (pin) {
- case PIN_STROBE: /* strobe, inverted */
- c_bit = PNL_PSTROBE;
- inv = !inv;
- break;
- case PIN_D0 ... PIN_D7: /* D0 - D7 = 2 - 9 */
- d_bit = 1 << (pin - 2);
- break;
- case PIN_AUTOLF: /* autofeed, inverted */
- c_bit = PNL_PAUTOLF;
- inv = !inv;
- break;
- case PIN_INITP: /* init, direct */
- c_bit = PNL_PINITP;
- break;
- case PIN_SELECP: /* select_in, inverted */
- c_bit = PNL_PSELECP;
- inv = !inv;
- break;
- default: /* unknown pin, ignore */
- break;
- }
-
- if (c_bit) {
- c_val[2] &= ~c_bit;
- c_val[!inv] = c_bit;
- } else if (d_bit) {
- d_val[2] &= ~d_bit;
- d_val[!inv] = d_bit;
- }
+void pin_to_bits(int pin, unsigned char *d_val, unsigned char *c_val)
+{
+ int d_bit, c_bit, inv;
+
+ d_val[0] = c_val[0] = d_val[1] = c_val[1] = 0;
+ d_val[2] = c_val[2] = 0xFF;
+
+ if (pin == 0)
+ return;
+
+ inv = (pin < 0);
+ if (inv)
+ pin = -pin;
+
+ d_bit = c_bit = 0;
+
+ switch (pin) {
+ case PIN_STROBE: /* strobe, inverted */
+ c_bit = PNL_PSTROBE;
+ inv = !inv;
+ break;
+ case PIN_D0...PIN_D7: /* D0 - D7 = 2 - 9 */
+ d_bit = 1 << (pin - 2);
+ break;
+ case PIN_AUTOLF: /* autofeed, inverted */
+ c_bit = PNL_PAUTOLF;
+ inv = !inv;
+ break;
+ case PIN_INITP: /* init, direct */
+ c_bit = PNL_PINITP;
+ break;
+ case PIN_SELECP: /* select_in, inverted */
+ c_bit = PNL_PSELECP;
+ inv = !inv;
+ break;
+ default: /* unknown pin, ignore */
+ break;
+ }
+
+ if (c_bit) {
+ c_val[2] &= ~c_bit;
+ c_val[!inv] = c_bit;
+ } else if (d_bit) {
+ d_val[2] &= ~d_bit;
+ d_val[!inv] = d_bit;
+ }
}
/* sleeps that many milliseconds with a reschedule */
-static void long_sleep(int ms) {
-
- if (in_interrupt())
- mdelay(ms);
- else {
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout((ms*HZ+999)/1000);
- }
-}
+static void long_sleep(int ms)
+{
+ if (in_interrupt())
+ mdelay(ms);
+ else {
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout((ms * HZ + 999) / 1000);
+ }
+}
/* send a serial byte to the LCD panel. The caller is responsible for locking if needed. */
-static void lcd_send_serial(int byte) {
- int bit;
-
- /* the data bit is set on D0, and the clock on STROBE.
- * LCD reads D0 on STROBE's rising edge.
- */
- for (bit = 0; bit < 8; bit++) {
- bits.cl = BIT_CLR; /* CLK low */
- set_bits();
- bits.da = byte & 1;
- set_bits();
- udelay(2); /* maintain the data during 2 us before CLK up */
- bits.cl = BIT_SET; /* CLK high */
- set_bits();
- udelay(1); /* maintain the strobe during 1 us */
- byte >>= 1;
- }
+static void lcd_send_serial(int byte)
+{
+ int bit;
+
+ /* the data bit is set on D0, and the clock on STROBE.
+ * LCD reads D0 on STROBE's rising edge.
+ */
+ for (bit = 0; bit < 8; bit++) {
+ bits.cl = BIT_CLR; /* CLK low */
+ set_bits();
+ bits.da = byte & 1;
+ set_bits();
+ udelay(2); /* maintain the data during 2 us before CLK up */
+ bits.cl = BIT_SET; /* CLK high */
+ set_bits();
+ udelay(1); /* maintain the strobe during 1 us */
+ byte >>= 1;
+ }
}
/* turn the backlight on or off */
-static void lcd_backlight(int on) {
- if (lcd_bl_pin == PIN_NONE)
- return;
-
- /* The backlight is activated by seting the AUTOFEED line to +5V */
- spin_lock(&pprt_lock);
- bits.bl = on;
- set_bits();
- spin_unlock(&pprt_lock);
+static void lcd_backlight(int on)
+{
+ if (lcd_bl_pin == PIN_NONE)
+ return;
+
+ /* The backlight is activated by seting the AUTOFEED line to +5V */
+ spin_lock(&pprt_lock);
+ bits.bl = on;
+ set_bits();
+ spin_unlock(&pprt_lock);
}
/* send a command to the LCD panel in serial mode */
-static void lcd_write_cmd_s(int cmd) {
- spin_lock(&pprt_lock);
- lcd_send_serial(0x1F); /* R/W=W, RS=0 */
- lcd_send_serial(cmd & 0x0F);
- lcd_send_serial((cmd >> 4) & 0x0F);
- udelay(40); /* the shortest command takes at least 40 us */
- spin_unlock(&pprt_lock);
+static void lcd_write_cmd_s(int cmd)
+{
+ spin_lock(&pprt_lock);
+ lcd_send_serial(0x1F); /* R/W=W, RS=0 */
+ lcd_send_serial(cmd & 0x0F);
+ lcd_send_serial((cmd >> 4) & 0x0F);
+ udelay(40); /* the shortest command takes at least 40 us */
+ spin_unlock(&pprt_lock);
}
/* send data to the LCD panel in serial mode */
-static void lcd_write_data_s(int data) {
- spin_lock(&pprt_lock);
- lcd_send_serial(0x5F); /* R/W=W, RS=1 */
- lcd_send_serial(data & 0x0F);
- lcd_send_serial((data >> 4) & 0x0F);
- udelay(40); /* the shortest data takes at least 40 us */
- spin_unlock(&pprt_lock);
+static void lcd_write_data_s(int data)
+{
+ spin_lock(&pprt_lock);
+ lcd_send_serial(0x5F); /* R/W=W, RS=1 */
+ lcd_send_serial(data & 0x0F);
+ lcd_send_serial((data >> 4) & 0x0F);
+ udelay(40); /* the shortest data takes at least 40 us */
+ spin_unlock(&pprt_lock);
}
/* send a command to the LCD panel in 8 bits parallel mode */
-static void lcd_write_cmd_p8(int cmd) {
- spin_lock(&pprt_lock);
- /* present the data to the data port */
- w_dtr(pprt, cmd);
- udelay(20); /* maintain the data during 20 us before the strobe */
+static void lcd_write_cmd_p8(int cmd)
+{
+ spin_lock(&pprt_lock);
+ /* present the data to the data port */
+ w_dtr(pprt, cmd);
+ udelay(20); /* maintain the data during 20 us before the strobe */
- bits.e = BIT_SET ; bits.rs = BIT_CLR ; bits.rw = BIT_CLR;
- set_ctrl_bits();
+ bits.e = BIT_SET;
+ bits.rs = BIT_CLR;
+ bits.rw = BIT_CLR;
+ set_ctrl_bits();
- udelay(40); /* maintain the strobe during 40 us */
+ udelay(40); /* maintain the strobe during 40 us */
- bits.e = BIT_CLR;
- set_ctrl_bits();
+ bits.e = BIT_CLR;
+ set_ctrl_bits();
- udelay(120); /* the shortest command takes at least 120 us */
- spin_unlock(&pprt_lock);
+ udelay(120); /* the shortest command takes at least 120 us */
+ spin_unlock(&pprt_lock);
}
/* send data to the LCD panel in 8 bits parallel mode */
-static void lcd_write_data_p8(int data) {
- spin_lock(&pprt_lock);
- /* present the data to the data port */
- w_dtr(pprt, data);
- udelay(20); /* maintain the data during 20 us before the strobe */
+static void lcd_write_data_p8(int data)
+{
+ spin_lock(&pprt_lock);
+ /* present the data to the data port */
+ w_dtr(pprt, data);
+ udelay(20); /* maintain the data during 20 us before the strobe */
- bits.e = BIT_SET ; bits.rs = BIT_SET ; bits.rw = BIT_CLR;
- set_ctrl_bits();
+ bits.e = BIT_SET;
+ bits.rs = BIT_SET;
+ bits.rw = BIT_CLR;
+ set_ctrl_bits();
- udelay(40); /* maintain the strobe during 40 us */
+ udelay(40); /* maintain the strobe during 40 us */
- bits.e = BIT_CLR;
- set_ctrl_bits();
+ bits.e = BIT_CLR;
+ set_ctrl_bits();
- udelay(45); /* the shortest data takes at least 45 us */
- spin_unlock(&pprt_lock);
+ udelay(45); /* the shortest data takes at least 45 us */
+ spin_unlock(&pprt_lock);
}
-static void lcd_gotoxy(void) {
- lcd_write_cmd(0x80 /* set DDRAM address */
- | (lcd_addr_y ? lcd_hwidth : 0)
- /* we force the cursor to stay at the end of the line if it wants to go farther */
- | ((lcd_addr_x < lcd_bwidth) ? lcd_addr_x & (lcd_hwidth-1) : lcd_bwidth - 1));
+static void lcd_gotoxy(void)
+{
+ lcd_write_cmd(0x80 /* set DDRAM address */
+ | (lcd_addr_y ? lcd_hwidth : 0)
+ /* we force the cursor to stay at the end of the line if it wants to go farther */
+ | ((lcd_addr_x < lcd_bwidth) ? lcd_addr_x &
+ (lcd_hwidth - 1) : lcd_bwidth - 1));
}
-static void lcd_print(char c) {
- if (lcd_addr_x < lcd_bwidth) {
- if (lcd_char_conv != NULL)
- c = lcd_char_conv[(unsigned char)c];
- lcd_write_data(c);
- lcd_addr_x++;
- }
- /* prevents the cursor from wrapping onto the next line */
- if (lcd_addr_x == lcd_bwidth) {
- lcd_gotoxy();
- }
+static void lcd_print(char c)
+{
+ if (lcd_addr_x < lcd_bwidth) {
+ if (lcd_char_conv != NULL)
+ c = lcd_char_conv[(unsigned char)c];
+ lcd_write_data(c);
+ lcd_addr_x++;
+ }
+ /* prevents the cursor from wrapping onto the next line */
+ if (lcd_addr_x == lcd_bwidth)
+ lcd_gotoxy();
}
/* fills the display with spaces and resets X/Y */
-static void lcd_clear_fast_s(void) {
- int pos;
- lcd_addr_x = lcd_addr_y = 0;
- lcd_gotoxy();
-
- spin_lock(&pprt_lock);
- for (pos = 0; pos < lcd_height * lcd_hwidth; pos++) {
- lcd_send_serial(0x5F); /* R/W=W, RS=1 */
- lcd_send_serial(' ' & 0x0F);
- lcd_send_serial((' ' >> 4) & 0x0F);
- udelay(40); /* the shortest data takes at least 40 us */
- }
- spin_unlock(&pprt_lock);
-
- lcd_addr_x = lcd_addr_y = 0;
- lcd_gotoxy();
+static void lcd_clear_fast_s(void)
+{
+ int pos;
+ lcd_addr_x = lcd_addr_y = 0;
+ lcd_gotoxy();
+
+ spin_lock(&pprt_lock);
+ for (pos = 0; pos < lcd_height * lcd_hwidth; pos++) {
+ lcd_send_serial(0x5F); /* R/W=W, RS=1 */
+ lcd_send_serial(' ' & 0x0F);
+ lcd_send_serial((' ' >> 4) & 0x0F);
+ udelay(40); /* the shortest data takes at least 40 us */
+ }
+ spin_unlock(&pprt_lock);
+
+ lcd_addr_x = lcd_addr_y = 0;
+ lcd_gotoxy();
}
/* fills the display with spaces and resets X/Y */
-static void lcd_clear_fast_p8(void) {
- int pos;
- lcd_addr_x = lcd_addr_y = 0;
- lcd_gotoxy();
+static void lcd_clear_fast_p8(void)
+{
+ int pos;
+ lcd_addr_x = lcd_addr_y = 0;
+ lcd_gotoxy();
- spin_lock(&pprt_lock);
- for (pos = 0; pos < lcd_height * lcd_hwidth; pos++) {
- /* present the data to the data port */
- w_dtr(pprt, ' ');
- udelay(20); /* maintain the data during 20 us before the strobe */
+ spin_lock(&pprt_lock);
+ for (pos = 0; pos < lcd_height * lcd_hwidth; pos++) {
+ /* present the data to the data port */
+ w_dtr(pprt, ' ');
+ udelay(20); /* maintain the data during 20 us before the strobe */
- bits.e = BIT_SET ; bits.rs = BIT_SET ; bits.rw = BIT_CLR;
- set_ctrl_bits();
+ bits.e = BIT_SET;
+ bits.rs = BIT_SET;
+ bits.rw = BIT_CLR;
+ set_ctrl_bits();
- udelay(40); /* maintain the strobe during 40 us */
+ udelay(40); /* maintain the strobe during 40 us */
- bits.e = BIT_CLR;
- set_ctrl_bits();
+ bits.e = BIT_CLR;
+ set_ctrl_bits();
- udelay(45); /* the shortest data takes at least 45 us */
- }
- spin_unlock(&pprt_lock);
+ udelay(45); /* the shortest data takes at least 45 us */
+ }
+ spin_unlock(&pprt_lock);
- lcd_addr_x = lcd_addr_y = 0;
- lcd_gotoxy();
+ lcd_addr_x = lcd_addr_y = 0;
+ lcd_gotoxy();
}
/* clears the display and resets X/Y */
-static void lcd_clear_display(void) {
- lcd_write_cmd(0x01); /* clear display */
- lcd_addr_x = lcd_addr_y = 0;
- /* we must wait a few milliseconds (15) */
- long_sleep(15);
+static void lcd_clear_display(void)
+{
+ lcd_write_cmd(0x01); /* clear display */
+ lcd_addr_x = lcd_addr_y = 0;
+ /* we must wait a few milliseconds (15) */
+ long_sleep(15);
}
-static void lcd_init_display(void) {
+static void lcd_init_display(void)
+{
- lcd_flags = ((lcd_height > 1) ? LCD_FLAG_N : 0)
- | LCD_FLAG_D | LCD_FLAG_C | LCD_FLAG_B;
+ lcd_flags = ((lcd_height > 1) ? LCD_FLAG_N : 0)
+ | LCD_FLAG_D | LCD_FLAG_C | LCD_FLAG_B;
- long_sleep(20); /* wait 20 ms after power-up for the paranoid */
+ long_sleep(20); /* wait 20 ms after power-up for the paranoid */
- lcd_write_cmd(0x30); /* 8bits, 1 line, small fonts */
- long_sleep(10);
- lcd_write_cmd(0x30); /* 8bits, 1 line, small fonts */
- long_sleep(10);
- lcd_write_cmd(0x30); /* 8bits, 1 line, small fonts */
- long_sleep(10);
+ lcd_write_cmd(0x30); /* 8bits, 1 line, small fonts */
+ long_sleep(10);
+ lcd_write_cmd(0x30); /* 8bits, 1 line, small fonts */
+ long_sleep(10);
+ lcd_write_cmd(0x30); /* 8bits, 1 line, small fonts */
+ long_sleep(10);
- lcd_write_cmd(0x30 /* set font height and lines number */
- | ((lcd_flags & LCD_FLAG_F)?4:0)
- | ((lcd_flags & LCD_FLAG_N)?8:0)
- );
- long_sleep(10);
+ lcd_write_cmd(0x30 /* set font height and lines number */
+ | ((lcd_flags & LCD_FLAG_F) ? 4 : 0)
+ | ((lcd_flags & LCD_FLAG_N) ? 8 : 0)
+ );
+ long_sleep(10);
- lcd_write_cmd(0x08); /* display off, cursor off, blink off */
- long_sleep(10);
+ lcd_write_cmd(0x08); /* display off, cursor off, blink off */
+ long_sleep(10);
- lcd_write_cmd(0x08 /* set display mode */
- | ((lcd_flags & LCD_FLAG_D)?4:0)
- | ((lcd_flags & LCD_FLAG_C)?2:0)
- | ((lcd_flags & LCD_FLAG_B)?1:0)
- );
+ lcd_write_cmd(0x08 /* set display mode */
+ | ((lcd_flags & LCD_FLAG_D) ? 4 : 0)
+ | ((lcd_flags & LCD_FLAG_C) ? 2 : 0)
+ | ((lcd_flags & LCD_FLAG_B) ? 1 : 0)
+ );
- lcd_backlight((lcd_flags & LCD_FLAG_L) ? 1 : 0);
+ lcd_backlight((lcd_flags & LCD_FLAG_L) ? 1 : 0);
- long_sleep(10);
+ long_sleep(10);
- lcd_write_cmd(0x06); /* entry mode set : increment, cursor shifting */
+ lcd_write_cmd(0x06); /* entry mode set : increment, cursor shifting */
- lcd_clear_display();
+ lcd_clear_display();
}
/*
@@ -926,573 +943,627 @@ static void lcd_init_display(void) {
*
*/
-static ssize_t lcd_write(struct file * file,
- const char * buf, size_t count, loff_t *ppos ) {
-
- const char *tmp = buf;
- char c;
-
- for( ; count-- > 0; (ppos ? (*ppos)++ : 0), ++tmp ) {
- if (!in_interrupt() && (((count + 1) & 0x1f) == 0)) {
- schedule(); /* let's be a little nice with other processes that need some CPU */
- }
- if (ppos == NULL && file == NULL)
- c = *tmp; /* let's not use get_user() from the kernel ! */
- else if (get_user( c, tmp ))
- return -EFAULT;
-
- /* first, we'll test if we're in escape mode */
- if ((c != '\n') && lcd_escape_len >= 0) { /* yes, let's add this char to the buffer */
- lcd_escape[lcd_escape_len++] = c;
- lcd_escape[lcd_escape_len] = 0;
- }
- else {
- lcd_escape_len = -1; /* aborts any previous escape sequence */
-
- switch (c) {
- case LCD_ESCAPE_CHAR: /* start of an escape sequence */
- lcd_escape_len = 0;
- lcd_escape[lcd_escape_len] = 0;
- break;
- case '\b': /* go back one char and clear it */
- if (lcd_addr_x > 0) {
- if (lcd_addr_x < lcd_bwidth) /* check if we're not at the end of the line */
- lcd_write_cmd(0x10); /* back one char */
- lcd_addr_x--;
- }
- lcd_write_data(' '); /* replace with a space */
- lcd_write_cmd(0x10); /* back one char again */
- break;
- case '\014': /* quickly clear the display */
- lcd_clear_fast();
- break;
- case '\n': /* flush the remainder of the current line and go to the
- beginning of the next line */
- for (; lcd_addr_x<lcd_bwidth; lcd_addr_x++)
- lcd_write_data(' ');
- lcd_addr_x = 0;
- lcd_addr_y = (lcd_addr_y + 1) % lcd_height;
- lcd_gotoxy();
- break;
- case '\r': /* go to the beginning of the same line */
- lcd_addr_x = 0;
- lcd_gotoxy();
- break;
- case '\t': /* print a space instead of the tab */
- lcd_print(' ');
- break;
- default : /* simply print this char */
- lcd_print(c);
- break;
- }
- }
-
- /* now we'll see if we're in an escape mode and if the current
- escape sequence can be understood.
- */
- if (lcd_escape_len >= 2) { /* minimal length for an escape command */
- int processed = 0; /* 1 means the command has been processed */
-
- if (!strcmp(lcd_escape,"[2J")) { /* Clear the display */
- lcd_clear_fast(); /* clear display */
- processed = 1;
- }
- else if (!strcmp(lcd_escape,"[H")) { /* Cursor to home */
- lcd_addr_x = lcd_addr_y = 0;
- lcd_gotoxy();
- processed = 1;
- }
- /* codes starting with ^[[L */
- else if ((lcd_escape_len >= 3) &&
- (lcd_escape[0]=='[') && (lcd_escape[1]=='L')) { /* LCD special codes */
-
- char *esc = lcd_escape + 2;
- int oldflags = lcd_flags;
-
- /* check for display mode flags */
- switch (*esc) {
- case 'D' : /* Display ON */
- lcd_flags |= LCD_FLAG_D;
- processed = 1;
- break;
- case 'd' : /* Display OFF */
- lcd_flags &= ~LCD_FLAG_D;
- processed = 1;
- break;
- case 'C' : /* Cursor ON */
- lcd_flags |= LCD_FLAG_C;
- processed = 1;
- break;
- case 'c' : /* Cursor OFF */
- lcd_flags &= ~LCD_FLAG_C;
- processed = 1;
- break;
- case 'B' : /* Blink ON */
- lcd_flags |= LCD_FLAG_B;
- processed = 1;
- break;
- case 'b' : /* Blink OFF */
- lcd_flags &= ~LCD_FLAG_B;
- processed = 1;
- break;
- case '+' : /* Back light ON */
- lcd_flags |= LCD_FLAG_L;
- processed = 1;
- break;
- case '-' : /* Back light OFF */
- lcd_flags &= ~LCD_FLAG_L;
- processed = 1;
- break;
- case '*' : /* flash back light using the keypad timer */
- if (scan_timer.function != NULL) {
- if (light_tempo == 0 && ((lcd_flags & LCD_FLAG_L) == 0))
- lcd_backlight(1);
- light_tempo = FLASH_LIGHT_TEMPO;
- }
- processed = 1;
- break;
- case 'f' : /* Small Font */
- lcd_flags &= ~LCD_FLAG_F;
- processed = 1;
- break;
- case 'F' : /* Large Font */
- lcd_flags |= LCD_FLAG_F;
- processed = 1;
- break;
- case 'n' : /* One Line */
- lcd_flags &= ~LCD_FLAG_N;
- processed = 1;
- break;
- case 'N' : /* Two Lines */
- lcd_flags |= LCD_FLAG_N;
- break;
-
- case 'l' : /* Shift Cursor Left */
- if (lcd_addr_x > 0) {
- if (lcd_addr_x < lcd_bwidth)
- lcd_write_cmd(0x10); /* back one char if not at end of line */
- lcd_addr_x--;
- }
- processed = 1;
- break;
-
- case 'r' : /* shift cursor right */
- if (lcd_addr_x < lcd_width) {
- if (lcd_addr_x < (lcd_bwidth - 1))
- lcd_write_cmd(0x14); /* allow the cursor to pass the end of the line */
- lcd_addr_x++;
- }
- processed = 1;
- break;
-
- case 'L' : /* shift display left */
- lcd_left_shift++;
- lcd_write_cmd(0x18);
- processed = 1;
- break;
-
- case 'R' : /* shift display right */
- lcd_left_shift--;
- lcd_write_cmd(0x1C);
- processed = 1;
- break;
-
- case 'k' : { /* kill end of line */
- int x;
- for (x=lcd_addr_x; x<lcd_bwidth; x++)
- lcd_write_data(' ');
- lcd_gotoxy(); /* restore cursor position */
- processed = 1;
- break;
- }
- case 'I' : /* reinitialize display */
- lcd_init_display();
- lcd_left_shift = 0;
- processed = 1;
- break;
-
- case 'G' : /* Generator : LGcxxxxx...xx; */ {
- /* must have <c> between '0' and '7', representing the numerical
- * ASCII code of the redefined character, and <xx...xx> a sequence
- * of 16 hex digits representing 8 bytes for each character. Most
- * LCDs will only use 5 lower bits of the 7 first bytes.
- */
-
- unsigned char cgbytes[8];
- unsigned char cgaddr;
- int cgoffset;
- int shift;
- char value;
- int addr;
-
- if (strchr(esc, ';') == NULL)
- break;
-
- esc++;
-
- cgaddr = *(esc++) - '0';
- if (cgaddr > 7) {
- processed = 1;
- break;
- }
-
- cgoffset = 0;
- shift = 0;
- value = 0;
- while (*esc && cgoffset < 8) {
- shift ^= 4;
- if (*esc >= '0' && *esc <='9')
- value |= (*esc - '0') << shift;
- else if (*esc >= 'A' && *esc <='Z')
- value |= (*esc - 'A' + 10) << shift;
- else if (*esc >= 'a' && *esc <='z')
- value |= (*esc - 'a' + 10) << shift;
- else {
- esc++;
- continue;
- }
+static ssize_t lcd_write(struct file *file,
+ const char *buf, size_t count, loff_t *ppos)
+{
- if (shift == 0) {
- cgbytes[cgoffset++] = value;
- value = 0;
+ const char *tmp = buf;
+ char c;
+
+ for (; count-- > 0; (ppos ? (*ppos)++ : 0), ++tmp) {
+ if (!in_interrupt() && (((count + 1) & 0x1f) == 0))
+ schedule(); /* let's be a little nice with other processes that need some CPU */
+
+ if (ppos == NULL && file == NULL)
+ c = *tmp; /* let's not use get_user() from the kernel ! */
+ else if (get_user(c, tmp))
+ return -EFAULT;
+
+ /* first, we'll test if we're in escape mode */
+ if ((c != '\n') && lcd_escape_len >= 0) { /* yes, let's add this char to the buffer */
+ lcd_escape[lcd_escape_len++] = c;
+ lcd_escape[lcd_escape_len] = 0;
+ } else {
+ lcd_escape_len = -1; /* aborts any previous escape sequence */
+
+ switch (c) {
+ case LCD_ESCAPE_CHAR: /* start of an escape sequence */
+ lcd_escape_len = 0;
+ lcd_escape[lcd_escape_len] = 0;
+ break;
+ case '\b': /* go back one char and clear it */
+ if (lcd_addr_x > 0) {
+ if (lcd_addr_x < lcd_bwidth) /* check if we're not at the end of the line */
+ lcd_write_cmd(0x10); /* back one char */
+ lcd_addr_x--;
+ }
+ lcd_write_data(' '); /* replace with a space */
+ lcd_write_cmd(0x10); /* back one char again */
+ break;
+ case '\014': /* quickly clear the display */
+ lcd_clear_fast();
+ break;
+ case '\n': /* flush the remainder of the current line and go to the
+ beginning of the next line */
+ for (; lcd_addr_x < lcd_bwidth; lcd_addr_x++)
+ lcd_write_data(' ');
+ lcd_addr_x = 0;
+ lcd_addr_y = (lcd_addr_y + 1) % lcd_height;
+ lcd_gotoxy();
+ break;
+ case '\r': /* go to the beginning of the same line */
+ lcd_addr_x = 0;
+ lcd_gotoxy();
+ break;
+ case '\t': /* print a space instead of the tab */
+ lcd_print(' ');
+ break;
+ default: /* simply print this char */
+ lcd_print(c);
+ break;
}
-
- esc++;
- }
-
- lcd_write_cmd(0x40 | (cgaddr * 8));
- for (addr = 0; addr < cgoffset; addr++) {
- lcd_write_data(cgbytes[addr]);
- }
-
- lcd_gotoxy(); /* ensures that we stop writing to CGRAM */
- processed = 1;
- break;
}
- case 'x' : /* gotoxy : LxXXX[yYYY]; */
- case 'y' : /* gotoxy : LyYYY[xXXX]; */
- if (strchr(esc, ';') == NULL)
- break;
- while (*esc) {
- if (*esc == 'x') {
- esc++;
- lcd_addr_x = 0;
- while (isdigit(*esc)) {
- lcd_addr_x = lcd_addr_x*10 + (*esc - '0');
- esc++;
- }
+ /* now we'll see if we're in an escape mode and if the current
+ escape sequence can be understood.
+ */
+ if (lcd_escape_len >= 2) { /* minimal length for an escape command */
+ int processed = 0; /* 1 means the command has been processed */
+
+ if (!strcmp(lcd_escape, "[2J")) { /* Clear the display */
+ lcd_clear_fast(); /* clear display */
+ processed = 1;
+ } else if (!strcmp(lcd_escape, "[H")) { /* Cursor to home */
+ lcd_addr_x = lcd_addr_y = 0;
+ lcd_gotoxy();
+ processed = 1;
}
- else if (*esc == 'y') {
- esc++;
- lcd_addr_y = 0;
- while (isdigit(*esc)) {
- lcd_addr_y = lcd_addr_y*10 + (*esc - '0');
- esc++;
- }
+ /* codes starting with ^[[L */
+ else if ((lcd_escape_len >= 3) &&
+ (lcd_escape[0] == '[') && (lcd_escape[1] == 'L')) { /* LCD special codes */
+
+ char *esc = lcd_escape + 2;
+ int oldflags = lcd_flags;
+
+ /* check for display mode flags */
+ switch (*esc) {
+ case 'D': /* Display ON */
+ lcd_flags |= LCD_FLAG_D;
+ processed = 1;
+ break;
+ case 'd': /* Display OFF */
+ lcd_flags &= ~LCD_FLAG_D;
+ processed = 1;
+ break;
+ case 'C': /* Cursor ON */
+ lcd_flags |= LCD_FLAG_C;
+ processed = 1;
+ break;
+ case 'c': /* Cursor OFF */
+ lcd_flags &= ~LCD_FLAG_C;
+ processed = 1;
+ break;
+ case 'B': /* Blink ON */
+ lcd_flags |= LCD_FLAG_B;
+ processed = 1;
+ break;
+ case 'b': /* Blink OFF */
+ lcd_flags &= ~LCD_FLAG_B;
+ processed = 1;
+ break;
+ case '+': /* Back light ON */
+ lcd_flags |= LCD_FLAG_L;
+ processed = 1;
+ break;
+ case '-': /* Back light OFF */
+ lcd_flags &= ~LCD_FLAG_L;
+ processed = 1;
+ break;
+ case '*': /* flash back light using the keypad timer */
+ if (scan_timer.function != NULL) {
+ if (light_tempo == 0
+ && ((lcd_flags & LCD_FLAG_L)
+ == 0))
+ lcd_backlight(1);
+ light_tempo = FLASH_LIGHT_TEMPO;
+ }
+ processed = 1;
+ break;
+ case 'f': /* Small Font */
+ lcd_flags &= ~LCD_FLAG_F;
+ processed = 1;
+ break;
+ case 'F': /* Large Font */
+ lcd_flags |= LCD_FLAG_F;
+ processed = 1;
+ break;
+ case 'n': /* One Line */
+ lcd_flags &= ~LCD_FLAG_N;
+ processed = 1;
+ break;
+ case 'N': /* Two Lines */
+ lcd_flags |= LCD_FLAG_N;
+ break;
+
+ case 'l': /* Shift Cursor Left */
+ if (lcd_addr_x > 0) {
+ if (lcd_addr_x < lcd_bwidth)
+ lcd_write_cmd(0x10); /* back one char if not at end of line */
+ lcd_addr_x--;
+ }
+ processed = 1;
+ break;
+
+ case 'r': /* shift cursor right */
+ if (lcd_addr_x < lcd_width) {
+ if (lcd_addr_x < (lcd_bwidth - 1))
+ lcd_write_cmd(0x14); /* allow the cursor to pass the end of the line */
+ lcd_addr_x++;
+ }
+ processed = 1;
+ break;
+
+ case 'L': /* shift display left */
+ lcd_left_shift++;
+ lcd_write_cmd(0x18);
+ processed = 1;
+ break;
+
+ case 'R': /* shift display right */
+ lcd_left_shift--;
+ lcd_write_cmd(0x1C);
+ processed = 1;
+ break;
+
+ case 'k':{ /* kill end of line */
+ int x;
+ for (x = lcd_addr_x; x < lcd_bwidth; x++)
+ lcd_write_data(' ');
+ lcd_gotoxy(); /* restore cursor position */
+ processed = 1;
+ break;
+ }
+ case 'I': /* reinitialize display */
+ lcd_init_display();
+ lcd_left_shift = 0;
+ processed = 1;
+ break;
+
+ case 'G': /* Generator : LGcxxxxx...xx; */ {
+ /* must have <c> between '0' and '7', representing the numerical
+ * ASCII code of the redefined character, and <xx...xx> a sequence
+ * of 16 hex digits representing 8 bytes for each character. Most
+ * LCDs will only use 5 lower bits of the 7 first bytes.
+ */
+
+ unsigned char cgbytes[8];
+ unsigned char cgaddr;
+ int cgoffset;
+ int shift;
+ char value;
+ int addr;
+
+ if (strchr(esc, ';') == NULL)
+ break;
+
+ esc++;
+
+ cgaddr = *(esc++) - '0';
+ if (cgaddr > 7) {
+ processed = 1;
+ break;
+ }
+
+ cgoffset = 0;
+ shift = 0;
+ value = 0;
+ while (*esc && cgoffset < 8) {
+ shift ^= 4;
+ if (*esc >= '0' && *esc <= '9')
+ value |= (*esc - '0') << shift;
+ else if (*esc >= 'A' && *esc <= 'Z')
+ value |= (*esc - 'A' + 10) << shift;
+ else if (*esc >= 'a' && *esc <= 'z')
+ value |= (*esc - 'a' + 10) << shift;
+ else {
+ esc++;
+ continue;
+ }
+
+ if (shift == 0) {
+ cgbytes[cgoffset++] = value;
+ value = 0;
+ }
+
+ esc++;
+ }
+
+ lcd_write_cmd(0x40 | (cgaddr * 8));
+ for (addr = 0; addr < cgoffset; addr++)
+ lcd_write_data(cgbytes[addr]);
+
+ lcd_gotoxy(); /* ensures that we stop writing to CGRAM */
+ processed = 1;
+ break;
+ }
+ case 'x': /* gotoxy : LxXXX[yYYY]; */
+ case 'y': /* gotoxy : LyYYY[xXXX]; */
+ if (strchr(esc, ';') == NULL)
+ break;
+
+ while (*esc) {
+ if (*esc == 'x') {
+ esc++;
+ lcd_addr_x = 0;
+ while (isdigit(*esc)) {
+ lcd_addr_x =
+ lcd_addr_x *
+ 10 + (*esc -
+ '0');
+ esc++;
+ }
+ } else if (*esc == 'y') {
+ esc++;
+ lcd_addr_y = 0;
+ while (isdigit(*esc)) {
+ lcd_addr_y =
+ lcd_addr_y *
+ 10 + (*esc -
+ '0');
+ esc++;
+ }
+ } else
+ break;
+ }
+
+ lcd_gotoxy();
+ processed = 1;
+ break;
+ } /* end of switch */
+
+ /* Check wether one flag was changed */
+ if (oldflags != lcd_flags) {
+ /* check wether one of B,C,D flags was changed */
+ if ((oldflags ^ lcd_flags) &
+ (LCD_FLAG_B | LCD_FLAG_C | LCD_FLAG_D))
+ /* set display mode */
+ lcd_write_cmd(0x08 |
+ ((lcd_flags & LCD_FLAG_D) ? 4 : 0) |
+ ((lcd_flags & LCD_FLAG_C) ? 2 : 0) |
+ ((lcd_flags & LCD_FLAG_B) ? 1 : 0));
+ /* check wether one of F,N flags was changed */
+ else if ((oldflags ^ lcd_flags) &
+ (LCD_FLAG_F | LCD_FLAG_N))
+ lcd_write_cmd(0x30 |
+ ((lcd_flags & LCD_FLAG_F) ? 4 : 0) |
+ ((lcd_flags & LCD_FLAG_N) ? 8 : 0));
+ /* check wether L flag was changed */
+ else if ((oldflags ^ lcd_flags) &
+ (LCD_FLAG_L)) {
+ if (lcd_flags & (LCD_FLAG_L))
+ lcd_backlight(1);
+ else if (light_tempo == 0) /* switch off the light only when the tempo lighting is gone */
+ lcd_backlight(0);
+ }
+ }
}
- else break;
- }
-
- lcd_gotoxy();
- processed = 1;
- break;
- } /* end of switch */
-
- /* Check wether one flag was changed */
- if (oldflags != lcd_flags) {
- /* check wether one of B,C,D flags was changed */
- if ((oldflags ^ lcd_flags) & (LCD_FLAG_B | LCD_FLAG_C | LCD_FLAG_D))
- lcd_write_cmd(0x08 /* set display mode */
- | ((lcd_flags & LCD_FLAG_D)?4:0)
- | ((lcd_flags & LCD_FLAG_C)?2:0)
- | ((lcd_flags & LCD_FLAG_B)?1:0)
- );
- /* check wether one of F,N flags was changed */
- else if ((oldflags ^ lcd_flags) & (LCD_FLAG_F | LCD_FLAG_N))
- lcd_write_cmd(0x30
- | ((lcd_flags & LCD_FLAG_F)?4:0)
- | ((lcd_flags & LCD_FLAG_N)?8:0)
- );
- /* check wether L flag was changed */
- else if ((oldflags ^ lcd_flags) & (LCD_FLAG_L)) {
- if (lcd_flags & (LCD_FLAG_L))
- lcd_backlight(1);
- else if (light_tempo == 0) /* switch off the light only when the tempo lighting is gone */
- lcd_backlight(0);
- }
- }
- } /* LCD special escape codes */
- /* flush the escape sequence if it's been processed or if it is
- getting too long. */
- if (processed || (lcd_escape_len >= LCD_ESCAPE_LEN))
- lcd_escape_len = -1;
- } /* escape codes */
- }
+ /* LCD special escape codes */
+ /* flush the escape sequence if it's been processed or if it is
+ getting too long. */
+ if (processed || (lcd_escape_len >= LCD_ESCAPE_LEN))
+ lcd_escape_len = -1;
+ } /* escape codes */
+ }
- return( tmp - buf );
+ return tmp - buf;
}
-static int lcd_open( struct inode *inode, struct file *file ) {
- if (lcd_open_cnt)
- return( -EBUSY ); /* open only once at a time */
+static int lcd_open(struct inode *inode, struct file *file)
+{
+ if (lcd_open_cnt)
+ return -EBUSY; /* open only once at a time */
- if (file->f_mode & FMODE_READ) /* device is write-only */
- return ( -EPERM );
+ if (file->f_mode & FMODE_READ) /* device is write-only */
+ return -EPERM;
- if (lcd_must_clear) {
- lcd_clear_display();
- lcd_must_clear = 0;
- }
- lcd_open_cnt++;
- return( 0 );
+ if (lcd_must_clear) {
+ lcd_clear_display();
+ lcd_must_clear = 0;
+ }
+ lcd_open_cnt++;
+ return 0;
}
-static int lcd_release( struct inode *inode, struct file *file ) {
- lcd_open_cnt--;
- return( 0 );
+static int lcd_release(struct inode *inode, struct file *file)
+{
+ lcd_open_cnt--;
+ return 0;
}
-
static struct file_operations lcd_fops = {
- write: lcd_write,
- open: lcd_open,
- release: lcd_release,
+ .write = lcd_write,
+ .open = lcd_open,
+ .release = lcd_release,
};
static struct miscdevice lcd_dev = {
- LCD_MINOR,
- "lcd",
- &lcd_fops
+ LCD_MINOR,
+ "lcd",
+ &lcd_fops
};
-
-
/* public function usable from the kernel for any purpose */
-void panel_lcd_print(char *s) {
- if (lcd_enabled && lcd_initialized)
- lcd_write(NULL, s, strlen(s), NULL);
+void panel_lcd_print(char *s)
+{
+ if (lcd_enabled && lcd_initialized)
+ lcd_write(NULL, s, strlen(s), NULL);
}
-
/* initialize the LCD driver */
-void lcd_init(void) {
- switch (lcd_type) {
- case LCD_TYPE_OLD : /* parallel mode, 8 bits */
- if (lcd_proto < 0) lcd_proto = LCD_PROTO_PARALLEL;
- if (lcd_charset < 0) lcd_charset = LCD_CHARSET_NORMAL;
- if (lcd_e_pin == PIN_NOT_SET) lcd_e_pin = PIN_STROBE;
- if (lcd_rs_pin == PIN_NOT_SET) lcd_rs_pin = PIN_AUTOLF;
-
- if (lcd_width < 0) lcd_width = 40;
- if (lcd_bwidth < 0) lcd_bwidth = 40;
- if (lcd_hwidth < 0) lcd_hwidth = 64;
- if (lcd_height < 0) lcd_height = 2;
+void lcd_init(void)
+{
+ switch (lcd_type) {
+ case LCD_TYPE_OLD: /* parallel mode, 8 bits */
+ if (lcd_proto < 0)
+ lcd_proto = LCD_PROTO_PARALLEL;
+ if (lcd_charset < 0)
+ lcd_charset = LCD_CHARSET_NORMAL;
+ if (lcd_e_pin == PIN_NOT_SET)
+ lcd_e_pin = PIN_STROBE;
+ if (lcd_rs_pin == PIN_NOT_SET)
+ lcd_rs_pin = PIN_AUTOLF;
+
+ if (lcd_width < 0)
+ lcd_width = 40;
+ if (lcd_bwidth < 0)
+ lcd_bwidth = 40;
+ if (lcd_hwidth < 0)
+ lcd_hwidth = 64;
+ if (lcd_height < 0)
+ lcd_height = 2;
break;
- case LCD_TYPE_KS0074 : /* serial mode, ks0074 */
- if (lcd_proto < 0) lcd_proto = LCD_PROTO_SERIAL;
- if (lcd_charset < 0) lcd_charset = LCD_CHARSET_KS0074;
- if (lcd_bl_pin == PIN_NOT_SET) lcd_bl_pin = PIN_AUTOLF;
- if (lcd_cl_pin == PIN_NOT_SET) lcd_cl_pin = PIN_STROBE;
- if (lcd_da_pin == PIN_NOT_SET) lcd_da_pin = PIN_D0;
-
- if (lcd_width < 0) lcd_width = 16;
- if (lcd_bwidth < 0) lcd_bwidth = 40;
- if (lcd_hwidth < 0) lcd_hwidth = 16;
- if (lcd_height < 0) lcd_height = 2;
+ case LCD_TYPE_KS0074: /* serial mode, ks0074 */
+ if (lcd_proto < 0)
+ lcd_proto = LCD_PROTO_SERIAL;
+ if (lcd_charset < 0)
+ lcd_charset = LCD_CHARSET_KS0074;
+ if (lcd_bl_pin == PIN_NOT_SET)
+ lcd_bl_pin = PIN_AUTOLF;
+ if (lcd_cl_pin == PIN_NOT_SET)
+ lcd_cl_pin = PIN_STROBE;
+ if (lcd_da_pin == PIN_NOT_SET)
+ lcd_da_pin = PIN_D0;
+
+ if (lcd_width < 0)
+ lcd_width = 16;
+ if (lcd_bwidth < 0)
+ lcd_bwidth = 40;
+ if (lcd_hwidth < 0)
+ lcd_hwidth = 16;
+ if (lcd_height < 0)
+ lcd_height = 2;
break;
- case LCD_TYPE_NEXCOM : /* parallel mode, 8 bits, generic */
- if (lcd_proto < 0) lcd_proto = LCD_PROTO_PARALLEL;
- if (lcd_charset < 0) lcd_charset = LCD_CHARSET_NORMAL;
- if (lcd_e_pin == PIN_NOT_SET) lcd_e_pin = PIN_AUTOLF;
- if (lcd_rs_pin == PIN_NOT_SET) lcd_rs_pin = PIN_SELECP;
- if (lcd_rw_pin == PIN_NOT_SET) lcd_rw_pin = PIN_INITP;
-
- if (lcd_width < 0) lcd_width = 16;
- if (lcd_bwidth < 0) lcd_bwidth = 40;
- if (lcd_hwidth < 0) lcd_hwidth = 64;
- if (lcd_height < 0) lcd_height = 2;
+ case LCD_TYPE_NEXCOM: /* parallel mode, 8 bits, generic */
+ if (lcd_proto < 0)
+ lcd_proto = LCD_PROTO_PARALLEL;
+ if (lcd_charset < 0)
+ lcd_charset = LCD_CHARSET_NORMAL;
+ if (lcd_e_pin == PIN_NOT_SET)
+ lcd_e_pin = PIN_AUTOLF;
+ if (lcd_rs_pin == PIN_NOT_SET)
+ lcd_rs_pin = PIN_SELECP;
+ if (lcd_rw_pin == PIN_NOT_SET)
+ lcd_rw_pin = PIN_INITP;
+
+ if (lcd_width < 0)
+ lcd_width = 16;
+ if (lcd_bwidth < 0)
+ lcd_bwidth = 40;
+ if (lcd_hwidth < 0)
+ lcd_hwidth = 64;
+ if (lcd_height < 0)
+ lcd_height = 2;
break;
- case LCD_TYPE_CUSTOM : /* customer-defined */
- if (lcd_proto < 0) lcd_proto = DEFAULT_LCD_PROTO;
- if (lcd_charset < 0) lcd_charset = DEFAULT_LCD_CHARSET;
+ case LCD_TYPE_CUSTOM: /* customer-defined */
+ if (lcd_proto < 0)
+ lcd_proto = DEFAULT_LCD_PROTO;
+ if (lcd_charset < 0)
+ lcd_charset = DEFAULT_LCD_CHARSET;
/* default geometry will be set later */
break;
- case LCD_TYPE_HANTRONIX : /* parallel mode, 8 bits, hantronix-like */
- default :
- if (lcd_proto < 0) lcd_proto = LCD_PROTO_PARALLEL;
- if (lcd_charset < 0) lcd_charset = LCD_CHARSET_NORMAL;
- if (lcd_e_pin == PIN_NOT_SET) lcd_e_pin = PIN_STROBE;
- if (lcd_rs_pin == PIN_NOT_SET) lcd_rs_pin = PIN_SELECP;
-
- if (lcd_width < 0) lcd_width = 16;
- if (lcd_bwidth < 0) lcd_bwidth = 40;
- if (lcd_hwidth < 0) lcd_hwidth = 64;
- if (lcd_height < 0) lcd_height = 2;
+ case LCD_TYPE_HANTRONIX: /* parallel mode, 8 bits, hantronix-like */
+ default:
+ if (lcd_proto < 0)
+ lcd_proto = LCD_PROTO_PARALLEL;
+ if (lcd_charset < 0)
+ lcd_charset = LCD_CHARSET_NORMAL;
+ if (lcd_e_pin == PIN_NOT_SET)
+ lcd_e_pin = PIN_STROBE;
+ if (lcd_rs_pin == PIN_NOT_SET)
+ lcd_rs_pin = PIN_SELECP;
+
+ if (lcd_width < 0)
+ lcd_width = 16;
+ if (lcd_bwidth < 0)
+ lcd_bwidth = 40;
+ if (lcd_hwidth < 0)
+ lcd_hwidth = 64;
+ if (lcd_height < 0)
+ lcd_height = 2;
break;
- }
-
- /* this is used to catch wrong and default values */
- if (lcd_width <= 0) lcd_width = DEFAULT_LCD_WIDTH;
- if (lcd_bwidth <= 0) lcd_bwidth = DEFAULT_LCD_BWIDTH;
- if (lcd_hwidth <= 0) lcd_hwidth = DEFAULT_LCD_HWIDTH;
- if (lcd_height <= 0) lcd_height = DEFAULT_LCD_HEIGHT;
-
- if (lcd_proto == LCD_PROTO_SERIAL) { /* SERIAL */
- lcd_write_cmd = lcd_write_cmd_s;
- lcd_write_data = lcd_write_data_s;
- lcd_clear_fast = lcd_clear_fast_s;
+ }
- if (lcd_cl_pin == PIN_NOT_SET)
- lcd_cl_pin = DEFAULT_LCD_PIN_SCL;
- if (lcd_da_pin == PIN_NOT_SET)
- lcd_da_pin = DEFAULT_LCD_PIN_SDA;
+ /* this is used to catch wrong and default values */
+ if (lcd_width <= 0)
+ lcd_width = DEFAULT_LCD_WIDTH;
+ if (lcd_bwidth <= 0)
+ lcd_bwidth = DEFAULT_LCD_BWIDTH;
+ if (lcd_hwidth <= 0)
+ lcd_hwidth = DEFAULT_LCD_HWIDTH;
+ if (lcd_height <= 0)
+ lcd_height = DEFAULT_LCD_HEIGHT;
+
+ if (lcd_proto == LCD_PROTO_SERIAL) { /* SERIAL */
+ lcd_write_cmd = lcd_write_cmd_s;
+ lcd_write_data = lcd_write_data_s;
+ lcd_clear_fast = lcd_clear_fast_s;
+
+ if (lcd_cl_pin == PIN_NOT_SET)
+ lcd_cl_pin = DEFAULT_LCD_PIN_SCL;
+ if (lcd_da_pin == PIN_NOT_SET)
+ lcd_da_pin = DEFAULT_LCD_PIN_SDA;
+
+ } else { /* PARALLEL */
+ lcd_write_cmd = lcd_write_cmd_p8;
+ lcd_write_data = lcd_write_data_p8;
+ lcd_clear_fast = lcd_clear_fast_p8;
+
+ if (lcd_e_pin == PIN_NOT_SET)
+ lcd_e_pin = DEFAULT_LCD_PIN_E;
+ if (lcd_rs_pin == PIN_NOT_SET)
+ lcd_rs_pin = DEFAULT_LCD_PIN_RS;
+ if (lcd_rw_pin == PIN_NOT_SET)
+ lcd_rw_pin = DEFAULT_LCD_PIN_RW;
+ }
- } else { /* PARALLEL */
- lcd_write_cmd = lcd_write_cmd_p8;
- lcd_write_data = lcd_write_data_p8;
- lcd_clear_fast = lcd_clear_fast_p8;
+ if (lcd_bl_pin == PIN_NOT_SET)
+ lcd_bl_pin = DEFAULT_LCD_PIN_BL;
- if (lcd_e_pin == PIN_NOT_SET)
- lcd_e_pin = DEFAULT_LCD_PIN_E;
+ if (lcd_e_pin == PIN_NOT_SET)
+ lcd_e_pin = PIN_NONE;
if (lcd_rs_pin == PIN_NOT_SET)
- lcd_rs_pin = DEFAULT_LCD_PIN_RS;
+ lcd_rs_pin = PIN_NONE;
if (lcd_rw_pin == PIN_NOT_SET)
- lcd_rw_pin = DEFAULT_LCD_PIN_RW;
- }
-
- if (lcd_bl_pin == PIN_NOT_SET)
- lcd_bl_pin = DEFAULT_LCD_PIN_BL;
-
- if (lcd_e_pin == PIN_NOT_SET) lcd_e_pin = PIN_NONE;
- if (lcd_rs_pin == PIN_NOT_SET) lcd_rs_pin = PIN_NONE;
- if (lcd_rw_pin == PIN_NOT_SET) lcd_rw_pin = PIN_NONE;
- if (lcd_bl_pin == PIN_NOT_SET) lcd_bl_pin = PIN_NONE;
- if (lcd_cl_pin == PIN_NOT_SET) lcd_cl_pin = PIN_NONE;
- if (lcd_da_pin == PIN_NOT_SET) lcd_da_pin = PIN_NONE;
-
- if (lcd_charset < 0)
- lcd_charset = DEFAULT_LCD_CHARSET;
+ lcd_rw_pin = PIN_NONE;
+ if (lcd_bl_pin == PIN_NOT_SET)
+ lcd_bl_pin = PIN_NONE;
+ if (lcd_cl_pin == PIN_NOT_SET)
+ lcd_cl_pin = PIN_NONE;
+ if (lcd_da_pin == PIN_NOT_SET)
+ lcd_da_pin = PIN_NONE;
- if (lcd_charset == LCD_CHARSET_KS0074)
- lcd_char_conv = lcd_char_conv_ks0074;
- else
- lcd_char_conv = NULL;
+ if (lcd_charset < 0)
+ lcd_charset = DEFAULT_LCD_CHARSET;
- if (lcd_bl_pin != PIN_NONE)
- init_scan_timer();
+ if (lcd_charset == LCD_CHARSET_KS0074)
+ lcd_char_conv = lcd_char_conv_ks0074;
+ else
+ lcd_char_conv = NULL;
+
+ if (lcd_bl_pin != PIN_NONE)
+ init_scan_timer();
+
+ pin_to_bits(lcd_e_pin, lcd_bits[LCD_PORT_D][LCD_BIT_E],
+ lcd_bits[LCD_PORT_C][LCD_BIT_E]);
+ pin_to_bits(lcd_rs_pin, lcd_bits[LCD_PORT_D][LCD_BIT_RS],
+ lcd_bits[LCD_PORT_C][LCD_BIT_RS]);
+ pin_to_bits(lcd_rw_pin, lcd_bits[LCD_PORT_D][LCD_BIT_RW],
+ lcd_bits[LCD_PORT_C][LCD_BIT_RW]);
+ pin_to_bits(lcd_bl_pin, lcd_bits[LCD_PORT_D][LCD_BIT_BL],
+ lcd_bits[LCD_PORT_C][LCD_BIT_BL]);
+ pin_to_bits(lcd_cl_pin, lcd_bits[LCD_PORT_D][LCD_BIT_CL],
+ lcd_bits[LCD_PORT_C][LCD_BIT_CL]);
+ pin_to_bits(lcd_da_pin, lcd_bits[LCD_PORT_D][LCD_BIT_DA],
+ lcd_bits[LCD_PORT_C][LCD_BIT_DA]);
+
+ /* before this line, we must NOT send anything to the display.
+ * Since lcd_init_display() needs to write data, we have to
+ * enable mark the LCD initialized just before.
+ */
+ lcd_initialized = 1;
+ lcd_init_display();
- pin_to_bits(lcd_e_pin, lcd_bits[LCD_PORT_D][LCD_BIT_E], lcd_bits[LCD_PORT_C][LCD_BIT_E]);
- pin_to_bits(lcd_rs_pin, lcd_bits[LCD_PORT_D][LCD_BIT_RS], lcd_bits[LCD_PORT_C][LCD_BIT_RS]);
- pin_to_bits(lcd_rw_pin, lcd_bits[LCD_PORT_D][LCD_BIT_RW], lcd_bits[LCD_PORT_C][LCD_BIT_RW]);
- pin_to_bits(lcd_bl_pin, lcd_bits[LCD_PORT_D][LCD_BIT_BL], lcd_bits[LCD_PORT_C][LCD_BIT_BL]);
- pin_to_bits(lcd_cl_pin, lcd_bits[LCD_PORT_D][LCD_BIT_CL], lcd_bits[LCD_PORT_C][LCD_BIT_CL]);
- pin_to_bits(lcd_da_pin, lcd_bits[LCD_PORT_D][LCD_BIT_DA], lcd_bits[LCD_PORT_C][LCD_BIT_DA]);
-
- /* before this line, we must NOT send anything to the display.
- * Since lcd_init_display() needs to write data, we have to
- * enable mark the LCD initialized just before.
- */
- lcd_initialized = 1;
- lcd_init_display();
-
- /* display a short message */
+ /* display a short message */
#ifdef CONFIG_PANEL_CHANGE_MESSAGE
#ifdef CONFIG_PANEL_BOOT_MESSAGE
- panel_lcd_print("\x1b[Lc\x1b[Lb\x1b[L*" CONFIG_PANEL_BOOT_MESSAGE);
+ panel_lcd_print("\x1b[Lc\x1b[Lb\x1b[L*" CONFIG_PANEL_BOOT_MESSAGE);
#endif
#else
- panel_lcd_print("\x1b[Lc\x1b[Lb\x1b[L*Linux-" UTS_RELEASE "\nPanel-" PANEL_VERSION);
+ panel_lcd_print("\x1b[Lc\x1b[Lb\x1b[L*Linux-" UTS_RELEASE "\nPanel-"
+ PANEL_VERSION);
#endif
- lcd_addr_x = lcd_addr_y = 0;
- lcd_must_clear = 1; /* clear the display on the next device opening */
- lcd_gotoxy();
+ lcd_addr_x = lcd_addr_y = 0;
+ lcd_must_clear = 1; /* clear the display on the next device opening */
+ lcd_gotoxy();
}
-
/*
* These are the file operation function for user access to /dev/keypad
*/
-static ssize_t keypad_read(struct file * file,
- char * buf, size_t count, loff_t *ppos ) {
+static ssize_t keypad_read(struct file *file,
+ char *buf, size_t count, loff_t *ppos)
+{
- unsigned i = *ppos;
- char *tmp = buf;
+ unsigned i = *ppos;
+ char *tmp = buf;
- if (keypad_buflen == 0) {
- if (file->f_flags & O_NONBLOCK)
- return -EAGAIN;
+ if (keypad_buflen == 0) {
+ if (file->f_flags & O_NONBLOCK)
+ return -EAGAIN;
- //printk(KERN_ERR "keypad_read():1 len=%d", keypad_buflen);
- interruptible_sleep_on(&keypad_read_wait);
- //printk(KERN_ERR "keypad_read():2 len=%d", keypad_buflen);
- if (signal_pending(current))
- return -EINTR;
- }
+ interruptible_sleep_on(&keypad_read_wait);
+ if (signal_pending(current))
+ return -EINTR;
+ }
- //printk(KERN_ERR "keypad_read():3 len=%d", keypad_buflen);
- for( ; count-- > 0 && (keypad_buflen > 0); ++i, ++tmp, --keypad_buflen ) {
- put_user( keypad_buffer[keypad_start], tmp );
- keypad_start = (keypad_start + 1) % KEYPAD_BUFFER;
- }
- *ppos = i;
- //printk(KERN_ERR "keypad_read():4 len=%d", keypad_buflen);
+ for (; count-- > 0 && (keypad_buflen > 0); ++i, ++tmp, --keypad_buflen) {
+ put_user(keypad_buffer[keypad_start], tmp);
+ keypad_start = (keypad_start + 1) % KEYPAD_BUFFER;
+ }
+ *ppos = i;
- return( tmp - buf );
+ return tmp - buf;
}
+static int keypad_open(struct inode *inode, struct file *file)
+{
-static int keypad_open( struct inode *inode, struct file *file ) {
-
- if (keypad_open_cnt)
- return( -EBUSY ); /* open only once at a time */
+ if (keypad_open_cnt)
+ return -EBUSY; /* open only once at a time */
- if (file->f_mode & FMODE_WRITE) /* device is read-only */
- return ( -EPERM );
+ if (file->f_mode & FMODE_WRITE) /* device is read-only */
+ return -EPERM;
- keypad_buflen = 0; /* flush the buffer on opening */
- keypad_open_cnt++;
- return( 0 );
+ keypad_buflen = 0; /* flush the buffer on opening */
+ keypad_open_cnt++;
+ return 0;
}
-static int keypad_release( struct inode *inode, struct file *file ) {
- keypad_open_cnt--;
- return( 0 );
+static int keypad_release(struct inode *inode, struct file *file)
+{
+ keypad_open_cnt--;
+ return 0;
}
static struct file_operations keypad_fops = {
- read: keypad_read, /* read */
- open: keypad_open, /* open */
- release: keypad_release, /* close */
+ .read = keypad_read, /* read */
+ .open = keypad_open, /* open */
+ .release = keypad_release, /* close */
};
static struct miscdevice keypad_dev = {
- KEYPAD_MINOR,
- "keypad",
- &keypad_fops
+ KEYPAD_MINOR,
+ "keypad",
+ &keypad_fops
};
-static void keypad_send_key(char *string, int max_len) {
- //printk(KERN_ERR "keypad_send_key(%c,%d):1\n", *string,max_len);
- if (init_in_progress)
- return;
- //printk(KERN_ERR "keypad_send_key(%c,%d):2\n", *string,max_len);
-
- /* send the key to the device only if a process is attached to it. */
- if (keypad_open_cnt > 0) {
- //printk(KERN_ERR "keypad_send_key(%c,%d):3\n", *string,max_len);
- while (max_len-- && keypad_buflen < KEYPAD_BUFFER && *string) {
- keypad_buffer[(keypad_start + keypad_buflen++) % KEYPAD_BUFFER] = *string++;
+static void keypad_send_key(char *string, int max_len)
+{
+ if (init_in_progress)
+ return;
+
+ /* send the key to the device only if a process is attached to it. */
+ if (keypad_open_cnt > 0) {
+ while (max_len-- && keypad_buflen < KEYPAD_BUFFER && *string) {
+ keypad_buffer[(keypad_start + keypad_buflen++) %
+ KEYPAD_BUFFER] = *string++;
+ }
+ wake_up_interruptible(&keypad_read_wait);
}
- //printk(KERN_ERR "keypad_send_key(%d):4\n", *string,max_len);
- wake_up_interruptible(&keypad_read_wait);
- }
- //printk(KERN_ERR "keypad_send_key(%d):5\n", *string,max_len);
}
-
/* this function scans all the bits involving at least one logical signal, and puts the
* results in the bitfield "phys_read" (one bit per established contact), and sets
* "phys_read_prev" to "phys_read".
@@ -1502,344 +1573,370 @@ static void keypad_send_key(char *string, int max_len) {
* as they previously were in their logical form (phys_prev). A signal which has just
* switched will have a 1 in (phys_read ^ phys_read_prev).
*/
-static void phys_scan_contacts(void) {
- int bit, bitval;
- char oldval;
- char bitmask;
- char gndmask;
-
- phys_prev = phys_curr;
- phys_read_prev = phys_read;
- phys_read = 0; /* flush all signals */
-
- oldval = r_dtr(pprt) | scan_mask_o; /* keep track of old value, with all outputs disabled */
- w_dtr(pprt, oldval & ~scan_mask_o); /* activate all keyboard outputs (active low) */
- bitmask = PNL_PINPUT(r_str(pprt)) & scan_mask_i; /* will have a 1 for each bit set to gnd */
- w_dtr(pprt, oldval); /* disable all matrix signals */
-
- /* now that all outputs are cleared, the only active input bits are
- * directly connected to the ground
- */
- gndmask = PNL_PINPUT(r_str(pprt)) & scan_mask_i; /* 1 for each grounded input */
-
- phys_read |= (pmask_t)gndmask << 40; /* grounded inputs are signals 40-44 */
-
- if (bitmask != gndmask) {
- /* since clearing the outputs changed some inputs, we know that some
- * input signals are currently tied to some outputs. So we'll scan them.
+static void phys_scan_contacts(void)
+{
+ int bit, bitval;
+ char oldval;
+ char bitmask;
+ char gndmask;
+
+ phys_prev = phys_curr;
+ phys_read_prev = phys_read;
+ phys_read = 0; /* flush all signals */
+
+ oldval = r_dtr(pprt) | scan_mask_o; /* keep track of old value, with all outputs disabled */
+ w_dtr(pprt, oldval & ~scan_mask_o); /* activate all keyboard outputs (active low) */
+ bitmask = PNL_PINPUT(r_str(pprt)) & scan_mask_i; /* will have a 1 for each bit set to gnd */
+ w_dtr(pprt, oldval); /* disable all matrix signals */
+
+ /* now that all outputs are cleared, the only active input bits are
+ * directly connected to the ground
*/
- for (bit = 0; bit < 8; bit ++) {
- bitval = 1 << bit;
+ gndmask = PNL_PINPUT(r_str(pprt)) & scan_mask_i; /* 1 for each grounded input */
+
+ phys_read |= (pmask_t) gndmask << 40; /* grounded inputs are signals 40-44 */
- if (!(scan_mask_o & bitval)) /* skip unused bits */
- continue;
+ if (bitmask != gndmask) {
+ /* since clearing the outputs changed some inputs, we know that some
+ * input signals are currently tied to some outputs. So we'll scan them.
+ */
+ for (bit = 0; bit < 8; bit++) {
+ bitval = 1 << bit;
- w_dtr(pprt, oldval & ~bitval); /* enable this output */
- bitmask = PNL_PINPUT(r_str(pprt)) & ~gndmask;
- phys_read |= (pmask_t) bitmask << (5*bit);
+ if (!(scan_mask_o & bitval)) /* skip unused bits */
+ continue;
+
+ w_dtr(pprt, oldval & ~bitval); /* enable this output */
+ bitmask = PNL_PINPUT(r_str(pprt)) & ~gndmask;
+ phys_read |= (pmask_t) bitmask << (5 * bit);
+ }
+ w_dtr(pprt, oldval); /* disable all outputs */
}
- w_dtr(pprt, oldval); /* disable all outputs */
- }
- /* this is easy: use old bits when they are flapping, use new ones when stable */
- phys_curr = (phys_prev & (phys_read ^ phys_read_prev)) | (phys_read & ~(phys_read ^ phys_read_prev));
+ /* this is easy: use old bits when they are flapping, use new ones when stable */
+ phys_curr =
+ (phys_prev & (phys_read ^ phys_read_prev)) | (phys_read &
+ ~(phys_read ^
+ phys_read_prev));
}
-static void panel_process_inputs(void) {
- struct list_head *item;
- struct logical_input *input;
+static void panel_process_inputs(void)
+{
+ struct list_head *item;
+ struct logical_input *input;
#if 0
- printk(KERN_DEBUG "entering panel_process_inputs with pp=%016Lx & pc=%016Lx\n",
- phys_prev, phys_curr);
+ printk(KERN_DEBUG
+ "entering panel_process_inputs with pp=%016Lx & pc=%016Lx\n",
+ phys_prev, phys_curr);
#endif
- keypressed = 0;
- inputs_stable = 1;
- list_for_each(item, &logical_inputs) {
- input = list_entry(item, struct logical_input, list);
-
- switch (input->state) {
- case INPUT_ST_LOW:
- if ((phys_curr & input->mask) != input->value)
- break;
- /* if all needed ones were already set previously, this means that
- * this logical signal has been activated by the releasing of
- * another combined signal, so we don't want to match.
- * eg: AB -(release B)-> A -(release A)-> 0 : don't match A.
- */
- if ((phys_prev & input->mask) == input->value)
- break;
- input->rise_timer = 0;
- input->state = INPUT_ST_RISING;
- /* no break here, fall through */
- case INPUT_ST_RISING:
- if ((phys_curr & input->mask) != input->value) {
- input->state = INPUT_ST_LOW;
- break;
- }
- if (input->rise_timer < input->rise_time) {
- inputs_stable = 0;
- input->rise_timer++;
- break;
- }
- input->high_timer = 0;
- input->state = INPUT_ST_HIGH;
- /* no break here, fall through */
- case INPUT_ST_HIGH:
+ keypressed = 0;
+ inputs_stable = 1;
+ list_for_each(item, &logical_inputs) {
+ input = list_entry(item, struct logical_input, list);
+
+ switch (input->state) {
+ case INPUT_ST_LOW:
+ if ((phys_curr & input->mask) != input->value)
+ break;
+ /* if all needed ones were already set previously, this means that
+ * this logical signal has been activated by the releasing of
+ * another combined signal, so we don't want to match.
+ * eg: AB -(release B)-> A -(release A)-> 0 : don't match A.
+ */
+ if ((phys_prev & input->mask) == input->value)
+ break;
+ input->rise_timer = 0;
+ input->state = INPUT_ST_RISING;
+ /* no break here, fall through */
+ case INPUT_ST_RISING:
+ if ((phys_curr & input->mask) != input->value) {
+ input->state = INPUT_ST_LOW;
+ break;
+ }
+ if (input->rise_timer < input->rise_time) {
+ inputs_stable = 0;
+ input->rise_timer++;
+ break;
+ }
+ input->high_timer = 0;
+ input->state = INPUT_ST_HIGH;
+ /* no break here, fall through */
+ case INPUT_ST_HIGH:
#if 0
- /* FIXME:
- * this is an invalid test. It tries to catch transitions from single-key
- * to multiple-key, but doesn't take into account the contacts polarity.
- * The only solution to the problem is to parse keys from the most complex
- * to the simplest combinations, and mark them as 'caught' once a combination
- * matches, then unmatch it for all other ones.
- */
-
- /* try to catch dangerous transitions cases :
- * someone adds a bit, so this signal was a false
- * positive resulting from a transition. We should invalidate
- * the signal immediately and not call the release function.
- * eg: 0 -(press A)-> A -(press B)-> AB : don't match A's release.
- */
- if (((phys_prev & input->mask) == input->value)
- && ((phys_curr & input->mask) > input->value)) {
- input->state = INPUT_ST_LOW; /* invalidate */
- break;
- }
- //else
+ /* FIXME:
+ * this is an invalid test. It tries to catch transitions from single-key
+ * to multiple-key, but doesn't take into account the contacts polarity.
+ * The only solution to the problem is to parse keys from the most complex
+ * to the simplest combinations, and mark them as 'caught' once a combination
+ * matches, then unmatch it for all other ones.
+ */
+
+ /* try to catch dangerous transitions cases :
+ * someone adds a bit, so this signal was a false
+ * positive resulting from a transition. We should invalidate
+ * the signal immediately and not call the release function.
+ * eg: 0 -(press A)-> A -(press B)-> AB : don't match A's release.
+ */
+ if (((phys_prev & input->mask) == input->value)
+ && ((phys_curr & input->mask) > input->value)) {
+ input->state = INPUT_ST_LOW; /* invalidate */
+ break;
+ }
#endif
- if ((phys_curr & input->mask) == input->value) {
- if ((input->type == INPUT_TYPE_STD) && (input->high_timer == 0)) {
- input->high_timer++;
- if (input->u.std.press_fct != NULL)
- input->u.std.press_fct(input->u.std.press_data);
- }
- else if (input->type == INPUT_TYPE_KBD) {
- keypressed = 1; /* will turn on the light */
-
- if (input->high_timer == 0) {
- if (input->u.kbd.press_str[0])
- keypad_send_key(input->u.kbd.press_str, sizeof(input->u.kbd.press_str));
- }
-
- if (input->u.kbd.repeat_str[0]) {
- if (input->high_timer >= KEYPAD_REP_START) {
- input->high_timer -= KEYPAD_REP_DELAY;
- keypad_send_key(input->u.kbd.repeat_str, sizeof(input->u.kbd.repeat_str));
+ if ((phys_curr & input->mask) == input->value) {
+ if ((input->type == INPUT_TYPE_STD)
+ && (input->high_timer == 0)) {
+ input->high_timer++;
+ if (input->u.std.press_fct != NULL)
+ input->u.std.press_fct(input->u.
+ std.
+ press_data);
+ } else if (input->type == INPUT_TYPE_KBD) {
+ keypressed = 1; /* will turn on the light */
+
+ if (input->high_timer == 0) {
+ if (input->u.kbd.press_str[0])
+ keypad_send_key(input->
+ u.kbd.
+ press_str,
+ sizeof
+ (input->
+ u.kbd.
+ press_str));
+ }
+
+ if (input->u.kbd.repeat_str[0]) {
+ if (input->high_timer >=
+ KEYPAD_REP_START) {
+ input->high_timer -=
+ KEYPAD_REP_DELAY;
+ keypad_send_key(input->
+ u.kbd.
+ repeat_str,
+ sizeof
+ (input->
+ u.kbd.
+ repeat_str));
+ }
+ inputs_stable = 0; /* we will need to come back here soon */
+ }
+
+ if (input->high_timer < 255)
+ input->high_timer++;
+ }
+ break;
+ } else {
+ /* else signal falling down. Let's fall through. */
+ input->state = INPUT_ST_FALLING;
+ input->fall_timer = 0;
}
- inputs_stable = 0; /* we will need to come back here soon */
- }
-
- if (input->high_timer < 255) {
- input->high_timer++;
- }
- }
- break;
- }
- else {
- /* else signal falling down. Let's fall through. */
- input->state = INPUT_ST_FALLING;
- input->fall_timer = 0;
- }
- /* no break here, fall through */
- case INPUT_ST_FALLING:
+ /* no break here, fall through */
+ case INPUT_ST_FALLING:
#if 0
- /* FIXME !!! same comment as above */
- if (((phys_prev & input->mask) == input->value)
- && ((phys_curr & input->mask) > input->value)) {
- input->state = INPUT_ST_LOW; /* invalidate */
- break;
- }
- //else
+ /* FIXME !!! same comment as above */
+ if (((phys_prev & input->mask) == input->value)
+ && ((phys_curr & input->mask) > input->value)) {
+ input->state = INPUT_ST_LOW; /* invalidate */
+ break;
+ }
#endif
- if ((phys_curr & input->mask) == input->value) {
- if (input->type == INPUT_TYPE_KBD) {
- keypressed = 1; /* will turn on the light */
+ if ((phys_curr & input->mask) == input->value) {
+ if (input->type == INPUT_TYPE_KBD) {
+ keypressed = 1; /* will turn on the light */
+
+ if (input->u.kbd.repeat_str[0]) {
+ if (input->high_timer >= KEYPAD_REP_START)
+ input->high_timer -= KEYPAD_REP_DELAY;
+ keypad_send_key(input->u.kbd.repeat_str,
+ sizeof(input->u.kbd.repeat_str));
+ inputs_stable = 0; /* we will need to come back here soon */
+ }
+
+ if (input->high_timer < 255)
+ input->high_timer++;
+ }
+ input->state = INPUT_ST_HIGH;
+ break;
+ } else if (input->fall_timer >= input->fall_time) {
+ /* call release event */
+ if (input->type == INPUT_TYPE_STD) {
+ if (input->u.std.release_fct != NULL)
+ input->u.std.release_fct(input->u.std.release_data);
+
+ } else if (input->type == INPUT_TYPE_KBD) {
+ if (input->u.kbd.release_str[0])
+ keypad_send_key(input->u.kbd.release_str,
+ sizeof(input->u.kbd.release_str));
+ }
+
+ input->state = INPUT_ST_LOW;
+ break;
+ } else {
+ input->fall_timer++;
+ inputs_stable = 0;
+ break;
+ }
+ }
+ }
+}
- if (input->u.kbd.repeat_str[0]) {
- if (input->high_timer >= KEYPAD_REP_START)
- input->high_timer -= KEYPAD_REP_DELAY;
- keypad_send_key(input->u.kbd.repeat_str, sizeof(input->u.kbd.repeat_str));
- inputs_stable = 0; /* we will need to come back here soon */
- }
+static void panel_scan_timer(void)
+{
+ if ((keypad_enabled && keypad_initialized)
+ || (smartcard_enabled && smartcard_enabled)) {
- if (input->high_timer < 255) {
- input->high_timer++;
- }
- }
- input->state = INPUT_ST_HIGH;
- break;
- }
- else if (input->fall_timer >= input->fall_time) {
- /* call release event */
- if (input->type == INPUT_TYPE_STD) {
- if (input->u.std.release_fct != NULL)
- input->u.std.release_fct(input->u.std.release_data);
- }
- else if (input->type == INPUT_TYPE_KBD) {
- if (input->u.kbd.release_str[0])
- keypad_send_key(input->u.kbd.release_str, sizeof(input->u.kbd.release_str));
+ if (spin_trylock(&pprt_lock)) {
+ phys_scan_contacts();
+ spin_unlock(&pprt_lock); /* no need for the parport anymore */
}
- input->state = INPUT_ST_LOW;
- break;
- }
- else {
- input->fall_timer++;
- inputs_stable = 0;
- break;
- }
+ if (!inputs_stable || phys_curr != phys_prev)
+ panel_process_inputs();
}
- }
-}
-static void panel_scan_timer(void) {
- if ((keypad_enabled && keypad_initialized)
- || (smartcard_enabled && smartcard_enabled)) {
-
- if (spin_trylock(&pprt_lock)) {
- phys_scan_contacts();
- spin_unlock(&pprt_lock); /* no need for the parport anymore */
- }
-
- if (!inputs_stable || phys_curr != phys_prev) {
- panel_process_inputs();
- }
- }
-
- if (lcd_enabled && lcd_initialized) {
- if (keypressed) {
- if (light_tempo == 0 && ((lcd_flags & LCD_FLAG_L) == 0))
- lcd_backlight(1);
- light_tempo = FLASH_LIGHT_TEMPO;
- }
- else if (light_tempo > 0) {
- light_tempo--;
- if (light_tempo == 0 && ((lcd_flags & LCD_FLAG_L) == 0))
- lcd_backlight(0);
- }
- }
-
- mod_timer(&scan_timer, jiffies + INPUT_POLL_TIME);
+ if (lcd_enabled && lcd_initialized) {
+ if (keypressed) {
+ if (light_tempo == 0 && ((lcd_flags & LCD_FLAG_L) == 0))
+ lcd_backlight(1);
+ light_tempo = FLASH_LIGHT_TEMPO;
+ } else if (light_tempo > 0) {
+ light_tempo--;
+ if (light_tempo == 0 && ((lcd_flags & LCD_FLAG_L) == 0))
+ lcd_backlight(0);
+ }
+ }
+
+ mod_timer(&scan_timer, jiffies + INPUT_POLL_TIME);
}
/* send a high / low clock impulse of <duration> microseconds high and low */
-static void smartcard_send_clock(int duration) {
- int old;
+static void smartcard_send_clock(int duration)
+{
+ int old;
- w_dtr(pprt, (old = r_dtr(pprt)) | PNL_SC_CLK);
- udelay(duration);
- w_dtr(pprt, (old & ~PNL_SC_CLK));
- udelay(duration);
+ w_dtr(pprt, (old = r_dtr(pprt)) | PNL_SC_CLK);
+ udelay(duration);
+ w_dtr(pprt, (old & ~PNL_SC_CLK));
+ udelay(duration);
}
-static void smartcard_insert(int dummy) {
- int ofs;
+static void smartcard_insert(int dummy)
+{
+ int ofs;
- spin_lock(&pprt_lock);
- w_dtr(pprt, (r_dtr(pprt) & ~PNL_SC_BITS));
- w_ctr(pprt, (r_ctr(pprt) | PNL_SC_ENA));
+ spin_lock(&pprt_lock);
+ w_dtr(pprt, (r_dtr(pprt) & ~PNL_SC_BITS));
+ w_ctr(pprt, (r_ctr(pprt) | PNL_SC_ENA));
- udelay(30); /* ensure the rst is low at least 30 us */
+ udelay(30); /* ensure the rst is low at least 30 us */
- smartcard_send_clock(100); /* reset address counter */
+ smartcard_send_clock(100); /* reset address counter */
- w_dtr(pprt, r_dtr(pprt) | PNL_SC_RST);
- udelay(30); /* ensure the rst is high at least 30 us */
+ w_dtr(pprt, r_dtr(pprt) | PNL_SC_RST);
+ udelay(30); /* ensure the rst is high at least 30 us */
- for (ofs = 0; ofs < SMARTCARD_BYTES; ofs++) {
- int bit, byte;
- byte = 0;
- for (bit = 128; bit > 0; bit >>= 1) {
- if (!(r_str(pprt) & PNL_SC_IOR))
- byte |= bit;
- smartcard_send_clock(15); /* 15 us are enough for data */
+ for (ofs = 0; ofs < SMARTCARD_BYTES; ofs++) {
+ int bit, byte;
+ byte = 0;
+ for (bit = 128; bit > 0; bit >>= 1) {
+ if (!(r_str(pprt) & PNL_SC_IOR))
+ byte |= bit;
+ smartcard_send_clock(15); /* 15 us are enough for data */
+ }
+ smartcard_data[ofs] = byte;
}
- smartcard_data[ofs] = byte;
- }
- w_dtr(pprt, (r_dtr(pprt) & ~PNL_SC_BITS));
- w_ctr(pprt, (r_ctr(pprt) & ~PNL_SC_ENA));
+ w_dtr(pprt, (r_dtr(pprt) & ~PNL_SC_BITS));
+ w_ctr(pprt, (r_ctr(pprt) & ~PNL_SC_ENA));
- spin_unlock(&pprt_lock);
+ spin_unlock(&pprt_lock);
- printk(KERN_INFO "Panel: smart card inserted : %02x%02x%02x%02x%1x\n",
- smartcard_data[2], smartcard_data[3], smartcard_data[4],
- smartcard_data[5], smartcard_data[6] >> 4);
- keypad_send_key("CardIn\n", 7);
+ printk(KERN_INFO "Panel: smart card inserted : %02x%02x%02x%02x%1x\n",
+ smartcard_data[2], smartcard_data[3], smartcard_data[4],
+ smartcard_data[5], smartcard_data[6] >> 4);
+ keypad_send_key("CardIn\n", 7);
}
-static void smartcard_remove(int dummy) {
- printk(KERN_INFO "Panel: smart card removed : %02x%02x%02x%02x%1x\n",
- smartcard_data[2], smartcard_data[3], smartcard_data[4],
- smartcard_data[5], smartcard_data[6] >> 4);
- memset(smartcard_data, 0, sizeof(smartcard_data));
- keypad_send_key("CardOut\n", 8);
+static void smartcard_remove(int dummy)
+{
+ printk(KERN_INFO "Panel: smart card removed : %02x%02x%02x%02x%1x\n",
+ smartcard_data[2], smartcard_data[3], smartcard_data[4],
+ smartcard_data[5], smartcard_data[6] >> 4);
+ memset(smartcard_data, 0, sizeof(smartcard_data));
+ keypad_send_key("CardOut\n", 8);
}
/*
* These are the file operation function for user access to /dev/smartcard
*/
-static ssize_t smartcard_read(struct file * file,
- char * buf, size_t count, loff_t *ppos ) {
-
- unsigned i = *ppos;
- char *tmp = buf;
+static ssize_t smartcard_read(struct file *file,
+ char *buf, size_t count, loff_t *ppos)
+{
- for( ; count-- > 0 && (smartcard_ptr < 9); ++i, ++tmp, ++smartcard_ptr ) {
- if (smartcard_ptr & 1)
- put_user( '0' + (smartcard_data[2 + (smartcard_ptr >> 1)] & 0xF), tmp );
- else
- put_user( '0' + (smartcard_data[2 + (smartcard_ptr >> 1)] >> 4), tmp );
- }
- *ppos = i;
+ unsigned i = *ppos;
+ char *tmp = buf;
+
+ for (; count-- > 0 && (smartcard_ptr < 9); ++i, ++tmp, ++smartcard_ptr) {
+ if (smartcard_ptr & 1)
+ put_user('0' +
+ (smartcard_data[2 + (smartcard_ptr >> 1)] &
+ 0xF), tmp);
+ else
+ put_user('0' +
+ (smartcard_data[2 + (smartcard_ptr >> 1)] >>
+ 4), tmp);
+ }
+ *ppos = i;
- return( tmp - buf );
+ return tmp - buf;
}
+static int smartcard_open(struct inode *inode, struct file *file)
+{
-static int smartcard_open( struct inode *inode, struct file *file ) {
-
- if (smartcard_open_cnt)
- return( -EBUSY ); /* open only once at a time */
+ if (smartcard_open_cnt)
+ return -EBUSY; /* open only once at a time */
- if (file->f_mode & FMODE_WRITE) /* device is read-only */
- return ( -EPERM );
+ if (file->f_mode & FMODE_WRITE) /* device is read-only */
+ return -EPERM;
- smartcard_ptr = 0; /* flush the buffer on opening */
- smartcard_open_cnt++;
- return( 0 );
+ smartcard_ptr = 0; /* flush the buffer on opening */
+ smartcard_open_cnt++;
+ return 0;
}
-static int smartcard_release( struct inode *inode, struct file *file ) {
- smartcard_open_cnt--;
- return( 0 );
+static int smartcard_release(struct inode *inode, struct file *file)
+{
+ smartcard_open_cnt--;
+ return 0;
}
static struct file_operations smartcard_fops = {
- read: smartcard_read, /* read */
- open: smartcard_open, /* open */
- release: smartcard_release, /* close */
+ .read = smartcard_read, /* read */
+ .open = smartcard_open, /* open */
+ .release = smartcard_release, /* close */
};
static struct miscdevice smartcard_dev = {
- SMARTCARD_MINOR,
- "smartcard",
- &smartcard_fops
+ SMARTCARD_MINOR,
+ "smartcard",
+ &smartcard_fops
};
-static void init_scan_timer(void) {
- if (scan_timer.function != NULL)
- return; /* already started */
-
- init_timer(&scan_timer);
- scan_timer.expires = jiffies + INPUT_POLL_TIME;
- scan_timer.data = 0;
- scan_timer.function = (void *)&panel_scan_timer;
- add_timer(&scan_timer);
+static void init_scan_timer(void)
+{
+ if (scan_timer.function != NULL)
+ return; /* already started */
+
+ init_timer(&scan_timer);
+ scan_timer.expires = jiffies + INPUT_POLL_TIME;
+ scan_timer.data = 0;
+ scan_timer.function = (void *)&panel_scan_timer;
+ add_timer(&scan_timer);
}
/* converts a name of the form "({BbAaPpSsEe}{01234567-})*" to a series of bits.
@@ -1847,75 +1944,83 @@ static void init_scan_timer(void) {
* to out and in bits respectively.
* returns 1 if ok, 0 if error (in which case, nothing is written).
*/
-static int input_name2mask(char *name, pmask_t *mask, pmask_t *value, char *imask, char *omask) {
- static char sigtab[10]="EeSsPpAaBb";
- char im, om;
- pmask_t m, v;
-
- om = im = m = v = 0ULL;
- while (*name) {
- int in, out, bit, neg;
- for (in = 0; (in < sizeof(sigtab)) && (sigtab[in] != *name); in++);
- if (in >= sizeof(sigtab))
- return 0; /* input name not found */
- neg = (in & 1); /* odd (lower) names are negated */
- in >>= 1;
- im |= (1 << in);
-
- name++;
- if (isdigit(*name)) {
- out = *name - '0';
- om |= (1 << out);
+static int input_name2mask(char *name, pmask_t *mask, pmask_t *value,
+ char *imask, char *omask)
+{
+ static char sigtab[10] = "EeSsPpAaBb";
+ char im, om;
+ pmask_t m, v;
+
+ om = im = m = v = 0ULL;
+ while (*name) {
+ int in, out, bit, neg;
+ for (in = 0; (in < sizeof(sigtab)) && (sigtab[in] != *name); in++)
+ ;
+ if (in >= sizeof(sigtab))
+ return 0; /* input name not found */
+ neg = (in & 1); /* odd (lower) names are negated */
+ in >>= 1;
+ im |= (1 << in);
+
+ name++;
+ if (isdigit(*name)) {
+ out = *name - '0';
+ om |= (1 << out);
+ } else if (*name == '-')
+ out = 8;
+ else
+ return 0; /* unknown bit name */
+
+ bit = (out * 5) + in;
+
+ m |= 1ULL << bit;
+ if (!neg)
+ v |= 1ULL << bit;
+ name++;
}
- else if (*name == '-')
- out = 8;
- else
- return 0; /* unknown bit name */
-
- bit = (out * 5) + in;
-
- m |= 1ULL << bit;
- if (!neg)
- v |= 1ULL << bit;
- name++;
- }
- *mask = m;
- *value = v;
- if (imask)
- *imask |= im;
- if (omask)
- *omask |= om;
- return 1;
+ *mask = m;
+ *value = v;
+ if (imask)
+ *imask |= im;
+ if (omask)
+ *omask |= om;
+ return 1;
}
/* tries to bind a key to the signal name <name>. The key will send the
* strings <press>, <repeat>, <release> for these respective events.
* Returns the pointer to the new key if ok, NULL if the key could not be bound.
*/
-static struct logical_input *panel_bind_key(char *name, char *press, char *repeat, char *release) {
- struct logical_input *key;
-
- key = (struct logical_input*)kmalloc(sizeof(struct logical_input), GFP_KERNEL);
- if (!key) {
- printk(KERN_ERR "panel: not enough memory\n");
- return NULL;
- }
- memset(key, 0, sizeof(struct logical_input));
- if (!input_name2mask(name, &key->mask, &key->value, &scan_mask_i, &scan_mask_o))
- return NULL;
- key->type = INPUT_TYPE_KBD;
- key->state = INPUT_ST_LOW;
- key->rise_time = 1;
- key->fall_time = 1;
+static struct logical_input *panel_bind_key(char *name, char *press,
+ char *repeat, char *release)
+{
+ struct logical_input *key;
+
+ key = kmalloc(sizeof(struct logical_input), GFP_KERNEL);
+ if (!key) {
+ printk(KERN_ERR "panel: not enough memory\n");
+ return NULL;
+ }
+ memset(key, 0, sizeof(struct logical_input));
+ if (!input_name2mask(name, &key->mask, &key->value, &scan_mask_i,
+ &scan_mask_o))
+ return NULL;
+
+ key->type = INPUT_TYPE_KBD;
+ key->state = INPUT_ST_LOW;
+ key->rise_time = 1;
+ key->fall_time = 1;
#if 0
- printk(KERN_DEBUG "bind: <%s> : m=%016Lx v=%016Lx\n", name, key->mask, key->value);
+ printk(KERN_DEBUG "bind: <%s> : m=%016Lx v=%016Lx\n", name, key->mask,
+ key->value);
#endif
- strncpy(key->u.kbd.press_str, press, sizeof(key->u.kbd.press_str));
- strncpy(key->u.kbd.repeat_str, repeat, sizeof(key->u.kbd.repeat_str));
- strncpy(key->u.kbd.release_str, release, sizeof(key->u.kbd.release_str));
- list_add(&key->list, &logical_inputs);
- return key;
+ strncpy(key->u.kbd.press_str, press, sizeof(key->u.kbd.press_str));
+ strncpy(key->u.kbd.repeat_str, repeat, sizeof(key->u.kbd.repeat_str));
+ strncpy(key->u.kbd.release_str, release,
+ sizeof(key->u.kbd.release_str));
+ list_add(&key->list, &logical_inputs);
+ return key;
}
/* tries to bind a callback function to the signal name <name>. The function
@@ -1924,58 +2029,64 @@ static struct logical_input *panel_bind_key(char *name, char *press, char *repea
* Returns the pointer to the new signal if ok, NULL if the signal could not be bound.
*/
static struct logical_input *panel_bind_callback(char *name,
- void (*press_fct)(int), int press_data,
- void (*release_fct)(int), int release_data) {
- struct logical_input *callback;
-
- callback = (struct logical_input*)kmalloc(sizeof(struct logical_input), GFP_KERNEL);
- if (!callback) {
- printk(KERN_ERR "panel: not enough memory\n");
- return NULL;
- }
- memset(callback, 0, sizeof(struct logical_input));
- if (!input_name2mask(name, &callback->mask, &callback->value, &scan_mask_i, &scan_mask_o))
- return NULL;
- callback->type = INPUT_TYPE_STD;
- callback->state = INPUT_ST_LOW;
- callback->rise_time = 1;
- callback->fall_time = 1;
- callback->u.std.press_fct = press_fct;
- callback->u.std.press_data = press_data;
- callback->u.std.release_fct = release_fct;
- callback->u.std.release_data = release_data;
- list_add(&callback->list, &logical_inputs);
- return callback;
+ void (*press_fct) (int),
+ int press_data,
+ void (*release_fct) (int),
+ int release_data)
+{
+ struct logical_input *callback;
+
+ callback = kmalloc(sizeof(struct logical_input), GFP_KERNEL);
+ if (!callback) {
+ printk(KERN_ERR "panel: not enough memory\n");
+ return NULL;
+ }
+ memset(callback, 0, sizeof(struct logical_input));
+ if (!input_name2mask(name, &callback->mask, &callback->value,
+ &scan_mask_i, &scan_mask_o))
+ return NULL;
+
+ callback->type = INPUT_TYPE_STD;
+ callback->state = INPUT_ST_LOW;
+ callback->rise_time = 1;
+ callback->fall_time = 1;
+ callback->u.std.press_fct = press_fct;
+ callback->u.std.press_data = press_data;
+ callback->u.std.release_fct = release_fct;
+ callback->u.std.release_data = release_data;
+ list_add(&callback->list, &logical_inputs);
+ return callback;
}
-static void keypad_init(void) {
- int keynum;
- init_waitqueue_head(&keypad_read_wait);
- keypad_buflen = 0; /* flushes any eventual noisy keystroke */
+static void keypad_init(void)
+{
+ int keynum;
+ init_waitqueue_head(&keypad_read_wait);
+ keypad_buflen = 0; /* flushes any eventual noisy keystroke */
- /* Let's create all known keys */
+ /* Let's create all known keys */
- for (keynum = 0; keypad_profile[keynum][0][0]; keynum++) {
- panel_bind_key(keypad_profile[keynum][0],
- keypad_profile[keynum][1],
- keypad_profile[keynum][2],
- keypad_profile[keynum][3]);
- }
+ for (keynum = 0; keypad_profile[keynum][0][0]; keynum++) {
+ panel_bind_key(keypad_profile[keynum][0],
+ keypad_profile[keynum][1],
+ keypad_profile[keynum][2],
+ keypad_profile[keynum][3]);
+ }
- init_scan_timer();
- keypad_initialized = 1;
+ init_scan_timer();
+ keypad_initialized = 1;
}
+static void smartcard_init(void)
+{
+ init_waitqueue_head(&smartcard_read_wait);
-static void smartcard_init(void) {
- init_waitqueue_head(&smartcard_read_wait);
-
- panel_bind_callback(SMARTCARD_LOGICAL_DETECTOR, &smartcard_insert, 0, &smartcard_remove, 0);
- init_scan_timer();
- smartcard_enabled = 1;
+ panel_bind_callback(SMARTCARD_LOGICAL_DETECTOR, &smartcard_insert, 0,
+ &smartcard_remove, 0);
+ init_scan_timer();
+ smartcard_enabled = 1;
}
-
/**************************************************/
/* device initialization */
/**************************************************/
@@ -1999,108 +2110,103 @@ static int __init panel_setup(char *str)
__initfunc(void panel_setup(char *str, int *ints))
#endif
{
- int dummy;
- int *where;
- int helpdisplayed = 0;
-
- if (!str)
- return 0;
-
- while (*str) {
- where = NULL;
+ int dummy;
+ int *where;
+ int helpdisplayed = 0;
+
+ if (!str)
+ return 0;
+
+ while (*str) {
+ where = NULL;
+
+ /* let's parse each of the command line parameters of the following form :
+ panel=[parport:x],[lcd_height:x],[lcd_width:x],[lcd_bwidth:x],[lcd_hwidth:x]
+ */
+ if (!strncmp(str, "parport:", 8)) {
+ str += 8;
+ where = &parport;
+ } else if (!strncmp(str, "disabled", 8)) {
+ return 0;
+ } else if (!strncmp(str, "lcd_height:", 11)) {
+ str += 11;
+ where = &lcd_height;
+ } else if (!strncmp(str, "lcd_width:", 10)) {
+ str += 10;
+ where = &lcd_width;
+ } else if (!strncmp(str, "lcd_bwidth:", 11)) {
+ str += 11;
+ where = &lcd_bwidth;
+ } else if (!strncmp(str, "lcd_hwidth:", 11)) {
+ str += 11;
+ where = &lcd_hwidth;
+ } else if (!strncmp(str, "lcd_enabled:", 12)) {
+ str += 12;
+ where = &lcd_enabled;
+ } else if (!strncmp(str, "keypad_enabled:", 15)) {
+ str += 15;
+ where = &keypad_enabled;
+ } else if (!strncmp(str, "smartcard_enabled:", 18)) {
+ str += 18;
+ where = &smartcard_enabled;
+ } else if (!strncmp(str, "profile:", 8)) {
+ str += 8;
+ where = &profile;
+ } else if (!helpdisplayed) {
+ helpdisplayed = 1;
+ printk(KERN_ERR "Panel version " PANEL_VERSION
+ ": invalid argument. Known arguments are :\n"
+ " parport:, lcd_{height,width,bwidth,enabled}:, keypad_enabled:\n");
+ }
- /* let's parse each of the command line parameters of the following form :
- panel=[parport:x],[lcd_height:x],[lcd_width:x],[lcd_bwidth:x],[lcd_hwidth:x]
- */
- if (!strncmp(str, "parport:", 8)) {
- str += 8;
- where = &parport;
- }
- else if (!strncmp(str, "disabled", 8)) {
- return 0;
- }
- else if (!strncmp(str, "lcd_height:", 11)) {
- str += 11;
- where = &lcd_height;
- }
- else if (!strncmp(str, "lcd_width:", 10)) {
- str += 10;
- where = &lcd_width;
- }
- else if (!strncmp(str, "lcd_bwidth:", 11)) {
- str += 11;
- where = &lcd_bwidth;
- }
- else if (!strncmp(str, "lcd_hwidth:", 11)) {
- str += 11;
- where = &lcd_hwidth;
- }
- else if (!strncmp(str, "lcd_enabled:", 12)) {
- str += 12;
- where = &lcd_enabled;
- }
- else if (!strncmp(str, "keypad_enabled:", 15)) {
- str += 15;
- where = &keypad_enabled;
- }
- else if (!strncmp(str, "smartcard_enabled:", 18)) {
- str += 18;
- where = &smartcard_enabled;
- }
- else if (!strncmp(str, "profile:", 8)) {
- str += 8;
- where = &profile;
- }
- else if (!helpdisplayed) {
- helpdisplayed = 1;
- printk(KERN_ERR "Panel version " PANEL_VERSION ": invalid argument. Known arguments are :\n"
- " parport:, lcd_{height,width,bwidth,enabled}:, keypad_enabled:\n");
- }
+ /* see if we need to read a number */
+ if (where != NULL) {
+ dummy = 0;
+ while (isdigit(*str)) {
+ dummy = (dummy * 10) + (*str - '0');
+ str++;
+ }
+ *where = dummy;
+ }
- /* see if we need to read a number */
- if (where != NULL) {
- dummy = 0;
- while (isdigit(*str)) {
- dummy = (dummy*10) + (*str - '0');
- str++;
- }
- *where = dummy;
+ /* look for next arg */
+ while (*str && (*str != ','))
+ str++;
+ while (*str == ',')
+ str++;
}
-
- /* look for next arg */
- while (*str && (*str != ','))
- str++;
- while (*str == ',')
- str++;
- }
- return 1;
+ return 1;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
-__setup("panel=", panel_setup );
+__setup("panel=", panel_setup);
#else
-__setup("panel", panel_setup );
+__setup("panel", panel_setup);
#endif
#endif /* !MODULE */
-static int panel_notify_sys(struct notifier_block *this, unsigned long code, void *unused) {
- if (lcd_enabled && lcd_initialized) {
- switch(code) {
- case SYS_DOWN:
- panel_lcd_print("\x0cReloading\nSystem...\x1b[Lc\x1b[Lb\x1b[L+");
- break;
- case SYS_HALT:
- panel_lcd_print("\x0cSystem Halted.\x1b[Lc\x1b[Lb\x1b[L+");
- break;
- case SYS_POWER_OFF:
- panel_lcd_print("\x0cPower off.\x1b[Lc\x1b[Lb\x1b[L+");
- break;
- default:
- break;
+static int panel_notify_sys(struct notifier_block *this, unsigned long code,
+ void *unused)
+{
+ if (lcd_enabled && lcd_initialized) {
+ switch (code) {
+ case SYS_DOWN:
+ panel_lcd_print
+ ("\x0cReloading\nSystem...\x1b[Lc\x1b[Lb\x1b[L+");
+ break;
+ case SYS_HALT:
+ panel_lcd_print
+ ("\x0cSystem Halted.\x1b[Lc\x1b[Lb\x1b[L+");
+ break;
+ case SYS_POWER_OFF:
+ panel_lcd_print("\x0cPower off.\x1b[Lc\x1b[Lb\x1b[L+");
+ break;
+ default:
+ break;
+ }
}
- }
- return NOTIFY_DONE;
+ return NOTIFY_DONE;
}
static struct notifier_block panel_notifier = {
@@ -2109,221 +2215,230 @@ static struct notifier_block panel_notifier = {
0
};
-
-static void panel_attach (struct parport *port)
+static void panel_attach(struct parport *port)
{
- if (port->number != parport)
- return;
-
- if (pprt) {
- printk(KERN_ERR "panel_attach(): port->number=%d parport=%d, already registered !\n", port->number, parport);
- return;
- }
-
- pprt = parport_register_device(port, "panel",
- NULL, NULL, /* pf, kf */
- NULL,
- /*PARPORT_DEV_EXCL*/
- 0,
- (void *)&pprt);
-
- if (parport_claim(pprt)) {
- printk(KERN_ERR "Panel: could not claim access to parport%d. Aborting.\n", parport);
- //parport_unregister_device(pprt);
- //parport_unregister_driver(&panel_driver);
- //return -EIO;
- return;
- }
-
- /* turns IRQ off */
- // port->ops->disable_irq(port);
-
- /* must init LCD first, just in case an IRQ from the keypad is generated at keypad init */
- if (lcd_enabled) {
- lcd_init();
- misc_register( &lcd_dev );
- }
-
- if (keypad_enabled) {
- keypad_init();
- misc_register( &keypad_dev );
- }
-
- if (smartcard_enabled) {
- smartcard_init();
- misc_register( &smartcard_dev );
- }
+ if (port->number != parport)
+ return;
+
+ if (pprt) {
+ printk(KERN_ERR
+ "panel_attach(): port->number=%d parport=%d, already registered !\n",
+ port->number, parport);
+ return;
+ }
+
+ pprt = parport_register_device(port, "panel", NULL, NULL, /* pf, kf */
+ NULL,
+ /*PARPORT_DEV_EXCL */
+ 0, (void *)&pprt);
+
+ if (parport_claim(pprt)) {
+ printk(KERN_ERR
+ "Panel: could not claim access to parport%d. Aborting.\n",
+ parport);
+ return;
+ }
+
+ /* must init LCD first, just in case an IRQ from the keypad is generated at keypad init */
+ if (lcd_enabled) {
+ lcd_init();
+ misc_register(&lcd_dev);
+ }
+
+ if (keypad_enabled) {
+ keypad_init();
+ misc_register(&keypad_dev);
+ }
+
+ if (smartcard_enabled) {
+ smartcard_init();
+ misc_register(&smartcard_dev);
+ }
}
-static void panel_detach (struct parport *port)
+static void panel_detach(struct parport *port)
{
- if (port->number != parport)
- return;
-
- if (!pprt) {
- printk(KERN_ERR "panel_detach(): port->number=%d parport=%d, nothing to unregister.\n",
- port->number, parport);
- return;
- }
-
- if (smartcard_enabled && smartcard_initialized) {
- misc_deregister( &smartcard_dev );
- }
-
- if (keypad_enabled && keypad_initialized) {
- misc_deregister( &keypad_dev );
- }
-
- if (lcd_enabled && lcd_initialized) {
- misc_deregister( &lcd_dev );
- }
-
- parport_release(pprt);
- parport_unregister_device(pprt);
- pprt = NULL;
+ if (port->number != parport)
+ return;
+
+ if (!pprt) {
+ printk(KERN_ERR
+ "panel_detach(): port->number=%d parport=%d, nothing to unregister.\n",
+ port->number, parport);
+ return;
+ }
+
+ if (smartcard_enabled && smartcard_initialized)
+ misc_deregister(&smartcard_dev);
+
+ if (keypad_enabled && keypad_initialized)
+ misc_deregister(&keypad_dev);
+
+ if (lcd_enabled && lcd_initialized)
+ misc_deregister(&lcd_dev);
+
+ parport_release(pprt);
+ parport_unregister_device(pprt);
+ pprt = NULL;
}
static struct parport_driver panel_driver = {
- .name = "panel",
- .attach = panel_attach,
- .detach = panel_detach,
+ .name = "panel",
+ .attach = panel_attach,
+ .detach = panel_detach,
};
/* init function */
-int panel_init (void) {
- /* for backwards compatibility */
- if (keypad_type < 0)
- keypad_type = keypad_enabled;
-
- if (lcd_type < 0)
- lcd_type = lcd_enabled;
-
- if (parport < 0)
- parport = DEFAULT_PARPORT;
-
- /* take care of an eventual profile */
- switch (profile) {
- case PANEL_PROFILE_CUSTOM: /* custom profile */
- if (keypad_type < 0) keypad_type = DEFAULT_KEYPAD;
- if (smartcard_enabled < 0) smartcard_enabled = DEFAULT_SMARTCARD;
- if (lcd_type < 0) lcd_type = DEFAULT_LCD;
- break;
- case PANEL_PROFILE_OLD: /* 8 bits, 2*16, old keypad */
- if (keypad_type < 0) keypad_type = KEYPAD_TYPE_OLD;
- if (smartcard_enabled < 0) smartcard_enabled = 0;
- if (lcd_type < 0) lcd_type = LCD_TYPE_OLD;
- if (lcd_width < 0) lcd_width = 16;
- if (lcd_hwidth < 0) lcd_hwidth = 16;
- break;
- case PANEL_PROFILE_NEW: /* serial, 2*16, new keypad */
- if (keypad_type < 0) keypad_type = KEYPAD_TYPE_NEW;
- if (smartcard_enabled < 0) smartcard_enabled = 1;
- if (lcd_type < 0) lcd_type = LCD_TYPE_KS0074;
- break;
- case PANEL_PROFILE_HANTRONIX: /* 8 bits, 2*16 hantronix-like, no keypad */
- if (keypad_type < 0) keypad_type = KEYPAD_TYPE_NONE;
- if (smartcard_enabled < 0) smartcard_enabled = 0;
- if (lcd_type < 0) lcd_type = LCD_TYPE_HANTRONIX;
- break;
- case PANEL_PROFILE_NEXCOM: /* generic 8 bits, 2*16, nexcom keypad, eg. Nexcom. */
- if (keypad_type < 0) keypad_type = KEYPAD_TYPE_NEXCOM;
- if (smartcard_enabled < 0) smartcard_enabled = 0;
- if (lcd_type < 0) lcd_type = LCD_TYPE_NEXCOM;
- break;
- case PANEL_PROFILE_LARGE: /* 8 bits, 2*40, old keypad */
- if (keypad_type < 0) keypad_type = KEYPAD_TYPE_OLD;
- if (smartcard_enabled < 0) smartcard_enabled = 0;
- if (lcd_type < 0) lcd_type = LCD_TYPE_OLD;
- break;
- }
-
- lcd_enabled = (lcd_type > 0);
- keypad_enabled = (keypad_type > 0);
-
- switch (keypad_type) {
- case KEYPAD_TYPE_OLD:
- keypad_profile = old_keypad_profile;
- break;
- case KEYPAD_TYPE_NEW:
- keypad_profile = new_keypad_profile;
- break;
- case KEYPAD_TYPE_NEXCOM:
- keypad_profile = nexcom_keypad_profile;
- break;
- default:
- keypad_profile = NULL;
- break;
- }
-
- /* tells various subsystems about the fact that we are initializing */
- init_in_progress = 1;
-
- if (parport_register_driver(&panel_driver)) {
- printk(KERN_ERR "Panel: could not register with parport. Aborting.\n");
- return -EIO;
- }
-
- // The parport can be asynchronously registered later.
- //if (pprt == NULL) {
- // printk(KERN_ERR "Panel: could not register parport%d. Aborting.\n", parport);
- // parport_unregister_driver(&panel_driver);
- // return -ENODEV; /* port not found */
- //}
-
-
- if (!lcd_enabled && !keypad_enabled && !smartcard_enabled) { /* no device enabled, let's release the parport */
- if (pprt) {
- parport_release(pprt);
- parport_unregister_device(pprt);
+int panel_init(void)
+{
+ /* for backwards compatibility */
+ if (keypad_type < 0)
+ keypad_type = keypad_enabled;
+
+ if (lcd_type < 0)
+ lcd_type = lcd_enabled;
+
+ if (parport < 0)
+ parport = DEFAULT_PARPORT;
+
+ /* take care of an eventual profile */
+ switch (profile) {
+ case PANEL_PROFILE_CUSTOM: /* custom profile */
+ if (keypad_type < 0)
+ keypad_type = DEFAULT_KEYPAD;
+ if (smartcard_enabled < 0)
+ smartcard_enabled = DEFAULT_SMARTCARD;
+ if (lcd_type < 0)
+ lcd_type = DEFAULT_LCD;
+ break;
+ case PANEL_PROFILE_OLD: /* 8 bits, 2*16, old keypad */
+ if (keypad_type < 0)
+ keypad_type = KEYPAD_TYPE_OLD;
+ if (smartcard_enabled < 0)
+ smartcard_enabled = 0;
+ if (lcd_type < 0)
+ lcd_type = LCD_TYPE_OLD;
+ if (lcd_width < 0)
+ lcd_width = 16;
+ if (lcd_hwidth < 0)
+ lcd_hwidth = 16;
+ break;
+ case PANEL_PROFILE_NEW: /* serial, 2*16, new keypad */
+ if (keypad_type < 0)
+ keypad_type = KEYPAD_TYPE_NEW;
+ if (smartcard_enabled < 0)
+ smartcard_enabled = 1;
+ if (lcd_type < 0)
+ lcd_type = LCD_TYPE_KS0074;
+ break;
+ case PANEL_PROFILE_HANTRONIX: /* 8 bits, 2*16 hantronix-like, no keypad */
+ if (keypad_type < 0)
+ keypad_type = KEYPAD_TYPE_NONE;
+ if (smartcard_enabled < 0)
+ smartcard_enabled = 0;
+ if (lcd_type < 0)
+ lcd_type = LCD_TYPE_HANTRONIX;
+ break;
+ case PANEL_PROFILE_NEXCOM: /* generic 8 bits, 2*16, nexcom keypad, eg. Nexcom. */
+ if (keypad_type < 0)
+ keypad_type = KEYPAD_TYPE_NEXCOM;
+ if (smartcard_enabled < 0)
+ smartcard_enabled = 0;
+ if (lcd_type < 0)
+ lcd_type = LCD_TYPE_NEXCOM;
+ break;
+ case PANEL_PROFILE_LARGE: /* 8 bits, 2*40, old keypad */
+ if (keypad_type < 0)
+ keypad_type = KEYPAD_TYPE_OLD;
+ if (smartcard_enabled < 0)
+ smartcard_enabled = 0;
+ if (lcd_type < 0)
+ lcd_type = LCD_TYPE_OLD;
+ break;
+ }
+
+ lcd_enabled = (lcd_type > 0);
+ keypad_enabled = (keypad_type > 0);
+
+ switch (keypad_type) {
+ case KEYPAD_TYPE_OLD:
+ keypad_profile = old_keypad_profile;
+ break;
+ case KEYPAD_TYPE_NEW:
+ keypad_profile = new_keypad_profile;
+ break;
+ case KEYPAD_TYPE_NEXCOM:
+ keypad_profile = nexcom_keypad_profile;
+ break;
+ default:
+ keypad_profile = NULL;
+ break;
+ }
+
+ /* tells various subsystems about the fact that we are initializing */
+ init_in_progress = 1;
+
+ if (parport_register_driver(&panel_driver)) {
+ printk(KERN_ERR
+ "Panel: could not register with parport. Aborting.\n");
+ return -EIO;
+ }
+
+ if (!lcd_enabled && !keypad_enabled && !smartcard_enabled) { /* no device enabled, let's release the parport */
+ if (pprt) {
+ parport_release(pprt);
+ parport_unregister_device(pprt);
+ }
+ parport_unregister_driver(&panel_driver);
+ printk(KERN_ERR "Panel driver version " PANEL_VERSION
+ " disabled.\n");
+ return -ENODEV;
}
- parport_unregister_driver(&panel_driver);
- printk(KERN_ERR "Panel driver version " PANEL_VERSION " disabled.\n");
- return -ENODEV;
- }
-
- register_reboot_notifier(&panel_notifier);
-
- if (pprt)
- printk(KERN_INFO "Panel driver version " PANEL_VERSION " registered on parport%d (io=0x%lx).\n",
- parport, pprt->port->base);
- else
- printk(KERN_INFO "Panel driver version " PANEL_VERSION " not yet registered\n");
- /* tells various subsystems about the fact that initialization is finished */
- init_in_progress = 0;
- return 0;
-}
+ register_reboot_notifier(&panel_notifier);
+
+ if (pprt)
+ printk(KERN_INFO "Panel driver version " PANEL_VERSION
+ " registered on parport%d (io=0x%lx).\n", parport,
+ pprt->port->base);
+ else
+ printk(KERN_INFO "Panel driver version " PANEL_VERSION
+ " not yet registered\n");
+ /* tells various subsystems about the fact that initialization is finished */
+ init_in_progress = 0;
+ return 0;
+}
#if defined(MODULE) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0))
-INIT_FUNC (void) {
- return panel_init();
+INIT_FUNC(void)
+{
+ return panel_init();
}
-CLEANUP_FUNC (void) {
- unregister_reboot_notifier(&panel_notifier);
+CLEANUP_FUNC(void)
+{
+ unregister_reboot_notifier(&panel_notifier);
- if (scan_timer.function != NULL) {
- del_timer(&scan_timer);
- }
+ if (scan_timer.function != NULL)
+ del_timer(&scan_timer);
- if (keypad_enabled) {
- misc_deregister( &keypad_dev );
- }
+ if (keypad_enabled)
+ misc_deregister(&keypad_dev);
- if (smartcard_enabled) {
- misc_deregister( &smartcard_dev );
- }
+ if (smartcard_enabled)
+ misc_deregister(&smartcard_dev);
- if (lcd_enabled) {
- panel_lcd_print("\x0cLCD driver " PANEL_VERSION "\nunloaded.\x1b[Lc\x1b[Lb\x1b[L-");
- misc_deregister( &lcd_dev );
- }
+ if (lcd_enabled) {
+ panel_lcd_print("\x0cLCD driver " PANEL_VERSION
+ "\nunloaded.\x1b[Lc\x1b[Lb\x1b[L-");
+ misc_deregister(&lcd_dev);
+ }
- /* TODO: free all input signals */
+ /* TODO: free all input signals */
- parport_release(pprt);
- parport_unregister_device(pprt);
- parport_unregister_driver(&panel_driver);
+ parport_release(pprt);
+ parport_unregister_device(pprt);
+ parport_unregister_driver(&panel_driver);
}
#endif
@@ -2340,4 +2455,3 @@ MODULE_LICENSE("GPL");
* tab-width: 8
* End:
*/
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 09:24:27 +0000