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@@ -1,1032 +0,0 @@
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-/*
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- * acsi_slm.c -- Device driver for the Atari SLM laser printer
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- *
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- * Copyright 1995 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
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- *
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- * This file is subject to the terms and conditions of the GNU General Public
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- * License. See the file COPYING in the main directory of this archive for
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- * more details.
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- *
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- */
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-
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-/*
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-
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-Notes:
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-
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-The major number for SLM printers is 28 (like ACSI), but as a character
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-device, not block device. The minor number is the number of the printer (if
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-you have more than one SLM; currently max. 2 (#define-constant) SLMs are
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-supported). The device can be opened for reading and writing. If reading it,
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-you get some status infos (MODE SENSE data). Writing mode is used for the data
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-to be printed. Some ioctls allow to get the printer status and to tune printer
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-modes and some internal variables.
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-
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-A special problem of the SLM driver is the timing and thus the buffering of
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-the print data. The problem is that all the data for one page must be present
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-in memory when printing starts, else --when swapping occurs-- the timing could
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-not be guaranteed. There are several ways to assure this:
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-
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- 1) Reserve a buffer of 1196k (maximum page size) statically by
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- atari_stram_alloc(). The data are collected there until they're complete,
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- and then printing starts. Since the buffer is reserved, no further
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- considerations about memory and swapping are needed. So this is the
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- simplest method, but it needs a lot of memory for just the SLM.
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-
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- An striking advantage of this method is (supposed the SLM_CONT_CNT_REPROG
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- method works, see there), that there are no timing problems with the DMA
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- anymore.
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-
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- 2) The other method would be to reserve the buffer dynamically each time
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- printing is required. I could think of looking at mem_map where the
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- largest unallocted ST-RAM area is, taking the area, and then extending it
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- by swapping out the neighbored pages, until the needed size is reached.
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- This requires some mm hacking, but seems possible. The only obstacle could
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- be pages that cannot be swapped out (reserved pages)...
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-
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- 3) Another possibility would be to leave the real data in user space and to
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- work with two dribble buffers of about 32k in the driver: While the one
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- buffer is DMAed to the SLM, the other can be filled with new data. But
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- to keep the timing, that requires that the user data remain in memory and
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- are not swapped out. Requires mm hacking, too, but maybe not so bad as
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- method 2).
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-
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-*/
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-
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-#include <linux/module.h>
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-
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-#include <linux/errno.h>
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-#include <linux/sched.h>
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-#include <linux/timer.h>
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-#include <linux/fs.h>
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-#include <linux/major.h>
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-#include <linux/kernel.h>
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-#include <linux/delay.h>
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-#include <linux/interrupt.h>
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-#include <linux/time.h>
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-#include <linux/mm.h>
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-#include <linux/slab.h>
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-
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-#include <asm/pgtable.h>
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-#include <asm/system.h>
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-#include <asm/uaccess.h>
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-#include <asm/atarihw.h>
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-#include <asm/atariints.h>
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-#include <asm/atari_acsi.h>
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-#include <asm/atari_stdma.h>
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-#include <asm/atari_stram.h>
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-#include <asm/atari_SLM.h>
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-
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-
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-#undef DEBUG
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-
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-/* Define this if the page data are continuous in physical memory. That
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- * requires less reprogramming of the ST-DMA */
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-#define SLM_CONTINUOUS_DMA
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-
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-/* Use continuous reprogramming of the ST-DMA counter register. This is
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- * --strictly speaking-- not allowed, Atari recommends not to look at the
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- * counter register while a DMA is going on. But I don't know if that applies
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- * only for reading the register, or also writing to it. Writing only works
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- * fine for me... The advantage is that the timing becomes absolutely
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- * uncritical: Just update each, say 200ms, the counter reg to its maximum,
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- * and the DMA will work until the status byte interrupt occurs.
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- */
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-#define SLM_CONT_CNT_REPROG
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-
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-#define CMDSET_TARG_LUN(cmd,targ,lun) \
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- do { \
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- cmd[0] = (cmd[0] & ~0xe0) | (targ)<<5; \
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- cmd[1] = (cmd[1] & ~0xe0) | (lun)<<5; \
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- } while(0)
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-
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-#define START_TIMER(to) mod_timer(&slm_timer, jiffies + (to))
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-#define STOP_TIMER() del_timer(&slm_timer)
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-
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-
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-static char slmreqsense_cmd[6] = { 0x03, 0, 0, 0, 0, 0 };
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-static char slmprint_cmd[6] = { 0x0a, 0, 0, 0, 0, 0 };
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-static char slminquiry_cmd[6] = { 0x12, 0, 0, 0, 0, 0x80 };
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-static char slmmsense_cmd[6] = { 0x1a, 0, 0, 0, 255, 0 };
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-#if 0
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-static char slmmselect_cmd[6] = { 0x15, 0, 0, 0, 0, 0 };
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-#endif
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-
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-
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-#define MAX_SLM 2
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-
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-static struct slm {
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- unsigned target; /* target number */
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- unsigned lun; /* LUN in target controller */
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- atomic_t wr_ok; /* set to 0 if output part busy */
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- atomic_t rd_ok; /* set to 0 if status part busy */
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-} slm_info[MAX_SLM];
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-
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-int N_SLM_Printers = 0;
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-
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-/* printer buffer */
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-static unsigned char *SLMBuffer; /* start of buffer */
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-static unsigned char *BufferP; /* current position in buffer */
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-static int BufferSize; /* length of buffer for page size */
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-
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-typedef enum { IDLE, FILLING, PRINTING } SLMSTATE;
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-static SLMSTATE SLMState;
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-static int SLMBufOwner; /* SLM# currently using the buffer */
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-
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-/* DMA variables */
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-#ifndef SLM_CONT_CNT_REPROG
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-static unsigned long SLMCurAddr; /* current base addr of DMA chunk */
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-static unsigned long SLMEndAddr; /* expected end addr */
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-static unsigned long SLMSliceSize; /* size of one DMA chunk */
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-#endif
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-static int SLMError;
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-
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-/* wait queues */
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-static DECLARE_WAIT_QUEUE_HEAD(slm_wait); /* waiting for buffer */
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-static DECLARE_WAIT_QUEUE_HEAD(print_wait); /* waiting for printing finished */
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-
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-/* status codes */
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-#define SLMSTAT_OK 0x00
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-#define SLMSTAT_ORNERY 0x02
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-#define SLMSTAT_TONER 0x03
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-#define SLMSTAT_WARMUP 0x04
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-#define SLMSTAT_PAPER 0x05
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-#define SLMSTAT_DRUM 0x06
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-#define SLMSTAT_INJAM 0x07
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-#define SLMSTAT_THRJAM 0x08
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-#define SLMSTAT_OUTJAM 0x09
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-#define SLMSTAT_COVER 0x0a
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-#define SLMSTAT_FUSER 0x0b
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-#define SLMSTAT_IMAGER 0x0c
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-#define SLMSTAT_MOTOR 0x0d
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-#define SLMSTAT_VIDEO 0x0e
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-#define SLMSTAT_SYSTO 0x10
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-#define SLMSTAT_OPCODE 0x12
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-#define SLMSTAT_DEVNUM 0x15
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-#define SLMSTAT_PARAM 0x1a
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-#define SLMSTAT_ACSITO 0x1b /* driver defined */
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-#define SLMSTAT_NOTALL 0x1c /* driver defined */
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-
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-static char *SLMErrors[] = {
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- /* 0x00 */ "OK and ready",
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- /* 0x01 */ NULL,
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- /* 0x02 */ "ornery printer",
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- /* 0x03 */ "toner empty",
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- /* 0x04 */ "warming up",
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- /* 0x05 */ "paper empty",
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- /* 0x06 */ "drum empty",
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- /* 0x07 */ "input jam",
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- /* 0x08 */ "through jam",
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- /* 0x09 */ "output jam",
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- /* 0x0a */ "cover open",
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- /* 0x0b */ "fuser malfunction",
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- /* 0x0c */ "imager malfunction",
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- /* 0x0d */ "motor malfunction",
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- /* 0x0e */ "video malfunction",
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- /* 0x0f */ NULL,
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- /* 0x10 */ "printer system timeout",
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- /* 0x11 */ NULL,
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- /* 0x12 */ "invalid operation code",
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- /* 0x13 */ NULL,
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- /* 0x14 */ NULL,
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- /* 0x15 */ "invalid device number",
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- /* 0x16 */ NULL,
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- /* 0x17 */ NULL,
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- /* 0x18 */ NULL,
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- /* 0x19 */ NULL,
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- /* 0x1a */ "invalid parameter list",
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- /* 0x1b */ "ACSI timeout",
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- /* 0x1c */ "not all printed"
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-};
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-
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-#define N_ERRORS (sizeof(SLMErrors)/sizeof(*SLMErrors))
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-
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-/* real (driver caused) error? */
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-#define IS_REAL_ERROR(x) (x > 0x10)
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-
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-
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-static struct {
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- char *name;
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- int w, h;
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-} StdPageSize[] = {
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- { "Letter", 2400, 3180 },
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- { "Legal", 2400, 4080 },
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- { "A4", 2336, 3386 },
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- { "B5", 2016, 2914 }
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-};
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-
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-#define N_STD_SIZES (sizeof(StdPageSize)/sizeof(*StdPageSize))
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-
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-#define SLM_BUFFER_SIZE (2336*3386/8) /* A4 for now */
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-#define SLM_DMA_AMOUNT 255 /* #sectors to program the DMA for */
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-
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-#ifdef SLM_CONTINUOUS_DMA
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-# define SLM_DMA_INT_OFFSET 0 /* DMA goes until seccnt 0, no offs */
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-# define SLM_DMA_END_OFFSET 32 /* 32 Byte ST-DMA FIFO */
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-# define SLM_SLICE_SIZE(w) (255*512)
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-#else
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-# define SLM_DMA_INT_OFFSET 32 /* 32 Byte ST-DMA FIFO */
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-# define SLM_DMA_END_OFFSET 32 /* 32 Byte ST-DMA FIFO */
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-# define SLM_SLICE_SIZE(w) ((254*512)/(w/8)*(w/8))
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-#endif
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-
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-/* calculate the number of jiffies to wait for 'n' bytes */
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-#ifdef SLM_CONT_CNT_REPROG
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-#define DMA_TIME_FOR(n) 50
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-#define DMA_STARTUP_TIME 0
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-#else
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-#define DMA_TIME_FOR(n) (n/1400-1)
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-#define DMA_STARTUP_TIME 650
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-#endif
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-
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-/***************************** Prototypes *****************************/
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-
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-static char *slm_errstr( int stat );
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-static int slm_getstats( char *buffer, int device );
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-static ssize_t slm_read( struct file* file, char *buf, size_t count, loff_t
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- *ppos );
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-static void start_print( int device );
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-static irqreturn_t slm_interrupt(int irc, void *data);
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-static void slm_test_ready( unsigned long dummy );
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-static void set_dma_addr( unsigned long paddr );
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-static unsigned long get_dma_addr( void );
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-static ssize_t slm_write( struct file *file, const char *buf, size_t count,
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- loff_t *ppos );
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-static int slm_ioctl( struct inode *inode, struct file *file, unsigned int
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- cmd, unsigned long arg );
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-static int slm_open( struct inode *inode, struct file *file );
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-static int slm_release( struct inode *inode, struct file *file );
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-static int slm_req_sense( int device );
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-static int slm_mode_sense( int device, char *buffer, int abs_flag );
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-#if 0
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-static int slm_mode_select( int device, char *buffer, int len, int
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- default_flag );
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-#endif
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-static int slm_get_pagesize( int device, int *w, int *h );
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-
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-/************************* End of Prototypes **************************/
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-
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-
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-static DEFINE_TIMER(slm_timer, slm_test_ready, 0, 0);
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-
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-static const struct file_operations slm_fops = {
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- .owner = THIS_MODULE,
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- .read = slm_read,
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- .write = slm_write,
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- .ioctl = slm_ioctl,
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- .open = slm_open,
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- .release = slm_release,
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-};
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-
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-
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-/* ---------------------------------------------------------------------- */
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-/* Status Functions */
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-
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-
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-static char *slm_errstr( int stat )
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-
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-{ char *p;
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- static char str[22];
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-
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- stat &= 0x1f;
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- if (stat >= 0 && stat < N_ERRORS && (p = SLMErrors[stat]))
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- return( p );
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- sprintf( str, "unknown status 0x%02x", stat );
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- return( str );
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-}
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-
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-
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-static int slm_getstats( char *buffer, int device )
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-
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-{ int len = 0, stat, i, w, h;
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- unsigned char buf[256];
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-
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- stat = slm_mode_sense( device, buf, 0 );
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- if (IS_REAL_ERROR(stat))
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- return( -EIO );
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-
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-#define SHORTDATA(i) ((buf[i] << 8) | buf[i+1])
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-#define BOOLDATA(i,mask) ((buf[i] & mask) ? "on" : "off")
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-
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- w = SHORTDATA( 3 );
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- h = SHORTDATA( 1 );
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-
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- len += sprintf( buffer+len, "Status\t\t%s\n",
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- slm_errstr( stat ) );
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- len += sprintf( buffer+len, "Page Size\t%dx%d",
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- w, h );
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-
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- for( i = 0; i < N_STD_SIZES; ++i ) {
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- if (w == StdPageSize[i].w && h == StdPageSize[i].h)
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- break;
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- }
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- if (i < N_STD_SIZES)
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- len += sprintf( buffer+len, " (%s)", StdPageSize[i].name );
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- buffer[len++] = '\n';
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-
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- len += sprintf( buffer+len, "Top/Left Margin\t%d/%d\n",
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- SHORTDATA( 5 ), SHORTDATA( 7 ) );
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- len += sprintf( buffer+len, "Manual Feed\t%s\n",
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- BOOLDATA( 9, 0x01 ) );
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- len += sprintf( buffer+len, "Input Select\t%d\n",
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- (buf[9] >> 1) & 7 );
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- len += sprintf( buffer+len, "Auto Select\t%s\n",
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- BOOLDATA( 9, 0x10 ) );
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- len += sprintf( buffer+len, "Prefeed Paper\t%s\n",
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- BOOLDATA( 9, 0x20 ) );
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- len += sprintf( buffer+len, "Thick Pixels\t%s\n",
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- BOOLDATA( 9, 0x40 ) );
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- len += sprintf( buffer+len, "H/V Resol.\t%d/%d dpi\n",
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- SHORTDATA( 12 ), SHORTDATA( 10 ) );
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- len += sprintf( buffer+len, "System Timeout\t%d\n",
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- buf[14] );
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- len += sprintf( buffer+len, "Scan Time\t%d\n",
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- SHORTDATA( 15 ) );
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- len += sprintf( buffer+len, "Page Count\t%d\n",
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- SHORTDATA( 17 ) );
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- len += sprintf( buffer+len, "In/Out Cap.\t%d/%d\n",
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- SHORTDATA( 19 ), SHORTDATA( 21 ) );
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- len += sprintf( buffer+len, "Stagger Output\t%s\n",
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- BOOLDATA( 23, 0x01 ) );
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- len += sprintf( buffer+len, "Output Select\t%d\n",
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- (buf[23] >> 1) & 7 );
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- len += sprintf( buffer+len, "Duplex Print\t%s\n",
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- BOOLDATA( 23, 0x10 ) );
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- len += sprintf( buffer+len, "Color Sep.\t%s\n",
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- BOOLDATA( 23, 0x20 ) );
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-
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- return( len );
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-}
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-
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-
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-static ssize_t slm_read( struct file *file, char *buf, size_t count,
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- loff_t *ppos )
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-
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-{
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- struct inode *node = file->f_path.dentry->d_inode;
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- unsigned long page;
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- int length;
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- int end;
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-
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- if (!(page = __get_free_page( GFP_KERNEL )))
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- return( -ENOMEM );
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|
|
-
|
|
|
- length = slm_getstats( (char *)page, iminor(node) );
|
|
|
- if (length < 0) {
|
|
|
- count = length;
|
|
|
- goto out;
|
|
|
- }
|
|
|
- if (file->f_pos >= length) {
|
|
|
- count = 0;
|
|
|
- goto out;
|
|
|
- }
|
|
|
- if (count + file->f_pos > length)
|
|
|
- count = length - file->f_pos;
|
|
|
- end = count + file->f_pos;
|
|
|
- if (copy_to_user(buf, (char *)page + file->f_pos, count)) {
|
|
|
- count = -EFAULT;
|
|
|
- goto out;
|
|
|
- }
|
|
|
- file->f_pos = end;
|
|
|
-out: free_page( page );
|
|
|
- return( count );
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-/* ---------------------------------------------------------------------- */
|
|
|
-/* Printing */
|
|
|
-
|
|
|
-
|
|
|
-static void start_print( int device )
|
|
|
-
|
|
|
-{ struct slm *sip = &slm_info[device];
|
|
|
- unsigned char *cmd;
|
|
|
- unsigned long paddr;
|
|
|
- int i;
|
|
|
-
|
|
|
- stdma_lock( slm_interrupt, NULL );
|
|
|
-
|
|
|
- CMDSET_TARG_LUN( slmprint_cmd, sip->target, sip->lun );
|
|
|
- cmd = slmprint_cmd;
|
|
|
- paddr = virt_to_phys( SLMBuffer );
|
|
|
- dma_cache_maintenance( paddr, virt_to_phys(BufferP)-paddr, 1 );
|
|
|
- DISABLE_IRQ();
|
|
|
-
|
|
|
- /* Low on A1 */
|
|
|
- dma_wd.dma_mode_status = 0x88;
|
|
|
- MFPDELAY();
|
|
|
-
|
|
|
- /* send the command bytes except the last */
|
|
|
- for( i = 0; i < 5; ++i ) {
|
|
|
- DMA_LONG_WRITE( *cmd++, 0x8a );
|
|
|
- udelay(20);
|
|
|
- if (!acsi_wait_for_IRQ( HZ/2 )) {
|
|
|
- SLMError = 1;
|
|
|
- return; /* timeout */
|
|
|
- }
|
|
|
- }
|
|
|
- /* last command byte */
|
|
|
- DMA_LONG_WRITE( *cmd++, 0x82 );
|
|
|
- MFPDELAY();
|
|
|
- /* set DMA address */
|
|
|
- set_dma_addr( paddr );
|
|
|
- /* program DMA for write and select sector counter reg */
|
|
|
- dma_wd.dma_mode_status = 0x192;
|
|
|
- MFPDELAY();
|
|
|
- /* program for 255*512 bytes and start DMA */
|
|
|
- DMA_LONG_WRITE( SLM_DMA_AMOUNT, 0x112 );
|
|
|
-
|
|
|
-#ifndef SLM_CONT_CNT_REPROG
|
|
|
- SLMCurAddr = paddr;
|
|
|
- SLMEndAddr = paddr + SLMSliceSize + SLM_DMA_INT_OFFSET;
|
|
|
-#endif
|
|
|
- START_TIMER( DMA_STARTUP_TIME + DMA_TIME_FOR( SLMSliceSize ));
|
|
|
-#if !defined(SLM_CONT_CNT_REPROG) && defined(DEBUG)
|
|
|
- printk( "SLM: CurAddr=%#lx EndAddr=%#lx timer=%ld\n",
|
|
|
- SLMCurAddr, SLMEndAddr, DMA_TIME_FOR( SLMSliceSize ) );
|
|
|
-#endif
|
|
|
-
|
|
|
- ENABLE_IRQ();
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-/* Only called when an error happened or at the end of a page */
|
|
|
-
|
|
|
-static irqreturn_t slm_interrupt(int irc, void *data)
|
|
|
-
|
|
|
-{ unsigned long addr;
|
|
|
- int stat;
|
|
|
-
|
|
|
- STOP_TIMER();
|
|
|
- addr = get_dma_addr();
|
|
|
- stat = acsi_getstatus();
|
|
|
- SLMError = (stat < 0) ? SLMSTAT_ACSITO :
|
|
|
- (addr < virt_to_phys(BufferP)) ? SLMSTAT_NOTALL :
|
|
|
- stat;
|
|
|
-
|
|
|
- dma_wd.dma_mode_status = 0x80;
|
|
|
- MFPDELAY();
|
|
|
-#ifdef DEBUG
|
|
|
- printk( "SLM: interrupt, addr=%#lx, error=%d\n", addr, SLMError );
|
|
|
-#endif
|
|
|
-
|
|
|
- wake_up( &print_wait );
|
|
|
- stdma_release();
|
|
|
- ENABLE_IRQ();
|
|
|
- return IRQ_HANDLED;
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static void slm_test_ready( unsigned long dummy )
|
|
|
-
|
|
|
-{
|
|
|
-#ifdef SLM_CONT_CNT_REPROG
|
|
|
- /* program for 255*512 bytes again */
|
|
|
- dma_wd.fdc_acces_seccount = SLM_DMA_AMOUNT;
|
|
|
- START_TIMER( DMA_TIME_FOR(0) );
|
|
|
-#ifdef DEBUG
|
|
|
- printk( "SLM: reprogramming timer for %d jiffies, addr=%#lx\n",
|
|
|
- DMA_TIME_FOR(0), get_dma_addr() );
|
|
|
-#endif
|
|
|
-
|
|
|
-#else /* !SLM_CONT_CNT_REPROG */
|
|
|
-
|
|
|
- unsigned long flags, addr;
|
|
|
- int d, ti;
|
|
|
-#ifdef DEBUG
|
|
|
- struct timeval start_tm, end_tm;
|
|
|
- int did_wait = 0;
|
|
|
-#endif
|
|
|
-
|
|
|
- local_irq_save(flags);
|
|
|
-
|
|
|
- addr = get_dma_addr();
|
|
|
- if ((d = SLMEndAddr - addr) > 0) {
|
|
|
- local_irq_restore(flags);
|
|
|
-
|
|
|
- /* slice not yet finished, decide whether to start another timer or to
|
|
|
- * busy-wait */
|
|
|
- ti = DMA_TIME_FOR( d );
|
|
|
- if (ti > 0) {
|
|
|
-#ifdef DEBUG
|
|
|
- printk( "SLM: reprogramming timer for %d jiffies, rest %d bytes\n",
|
|
|
- ti, d );
|
|
|
-#endif
|
|
|
- START_TIMER( ti );
|
|
|
- return;
|
|
|
- }
|
|
|
- /* wait for desired end address to be reached */
|
|
|
-#ifdef DEBUG
|
|
|
- do_gettimeofday( &start_tm );
|
|
|
- did_wait = 1;
|
|
|
-#endif
|
|
|
- local_irq_disable();
|
|
|
- while( get_dma_addr() < SLMEndAddr )
|
|
|
- barrier();
|
|
|
- }
|
|
|
-
|
|
|
- /* slice finished, start next one */
|
|
|
- SLMCurAddr += SLMSliceSize;
|
|
|
-
|
|
|
-#ifdef SLM_CONTINUOUS_DMA
|
|
|
- /* program for 255*512 bytes again */
|
|
|
- dma_wd.fdc_acces_seccount = SLM_DMA_AMOUNT;
|
|
|
-#else
|
|
|
- /* set DMA address;
|
|
|
- * add 2 bytes for the ones in the SLM controller FIFO! */
|
|
|
- set_dma_addr( SLMCurAddr + 2 );
|
|
|
- /* toggle DMA to write and select sector counter reg */
|
|
|
- dma_wd.dma_mode_status = 0x92;
|
|
|
- MFPDELAY();
|
|
|
- dma_wd.dma_mode_status = 0x192;
|
|
|
- MFPDELAY();
|
|
|
- /* program for 255*512 bytes and start DMA */
|
|
|
- DMA_LONG_WRITE( SLM_DMA_AMOUNT, 0x112 );
|
|
|
-#endif
|
|
|
-
|
|
|
- local_irq_restore(flags);
|
|
|
-
|
|
|
-#ifdef DEBUG
|
|
|
- if (did_wait) {
|
|
|
- int ms;
|
|
|
- do_gettimeofday( &end_tm );
|
|
|
- ms = (end_tm.tv_sec*1000000+end_tm.tv_usec) -
|
|
|
- (start_tm.tv_sec*1000000+start_tm.tv_usec);
|
|
|
- printk( "SLM: did %ld.%ld ms busy waiting for %d bytes\n",
|
|
|
- ms/1000, ms%1000, d );
|
|
|
- }
|
|
|
- else
|
|
|
- printk( "SLM: didn't wait (!)\n" );
|
|
|
-#endif
|
|
|
-
|
|
|
- if ((unsigned char *)PTOV( SLMCurAddr + SLMSliceSize ) >= BufferP) {
|
|
|
- /* will be last slice, no timer necessary */
|
|
|
-#ifdef DEBUG
|
|
|
- printk( "SLM: CurAddr=%#lx EndAddr=%#lx last slice -> no timer\n",
|
|
|
- SLMCurAddr, SLMEndAddr );
|
|
|
-#endif
|
|
|
- }
|
|
|
- else {
|
|
|
- /* not last slice */
|
|
|
- SLMEndAddr = SLMCurAddr + SLMSliceSize + SLM_DMA_INT_OFFSET;
|
|
|
- START_TIMER( DMA_TIME_FOR( SLMSliceSize ));
|
|
|
-#ifdef DEBUG
|
|
|
- printk( "SLM: CurAddr=%#lx EndAddr=%#lx timer=%ld\n",
|
|
|
- SLMCurAddr, SLMEndAddr, DMA_TIME_FOR( SLMSliceSize ) );
|
|
|
-#endif
|
|
|
- }
|
|
|
-#endif /* SLM_CONT_CNT_REPROG */
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static void set_dma_addr( unsigned long paddr )
|
|
|
-
|
|
|
-{ unsigned long flags;
|
|
|
-
|
|
|
- local_irq_save(flags);
|
|
|
- dma_wd.dma_lo = (unsigned char)paddr;
|
|
|
- paddr >>= 8;
|
|
|
- MFPDELAY();
|
|
|
- dma_wd.dma_md = (unsigned char)paddr;
|
|
|
- paddr >>= 8;
|
|
|
- MFPDELAY();
|
|
|
- if (ATARIHW_PRESENT( EXTD_DMA ))
|
|
|
- st_dma_ext_dmahi = (unsigned short)paddr;
|
|
|
- else
|
|
|
- dma_wd.dma_hi = (unsigned char)paddr;
|
|
|
- MFPDELAY();
|
|
|
- local_irq_restore(flags);
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static unsigned long get_dma_addr( void )
|
|
|
-
|
|
|
-{ unsigned long addr;
|
|
|
-
|
|
|
- addr = dma_wd.dma_lo & 0xff;
|
|
|
- MFPDELAY();
|
|
|
- addr |= (dma_wd.dma_md & 0xff) << 8;
|
|
|
- MFPDELAY();
|
|
|
- addr |= (dma_wd.dma_hi & 0xff) << 16;
|
|
|
- MFPDELAY();
|
|
|
-
|
|
|
- return( addr );
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static ssize_t slm_write( struct file *file, const char *buf, size_t count,
|
|
|
- loff_t *ppos )
|
|
|
-
|
|
|
-{
|
|
|
- struct inode *node = file->f_path.dentry->d_inode;
|
|
|
- int device = iminor(node);
|
|
|
- int n, filled, w, h;
|
|
|
-
|
|
|
- while( SLMState == PRINTING ||
|
|
|
- (SLMState == FILLING && SLMBufOwner != device) ) {
|
|
|
- interruptible_sleep_on( &slm_wait );
|
|
|
- if (signal_pending(current))
|
|
|
- return( -ERESTARTSYS );
|
|
|
- }
|
|
|
- if (SLMState == IDLE) {
|
|
|
- /* first data of page: get current page size */
|
|
|
- if (slm_get_pagesize( device, &w, &h ))
|
|
|
- return( -EIO );
|
|
|
- BufferSize = w*h/8;
|
|
|
- if (BufferSize > SLM_BUFFER_SIZE)
|
|
|
- return( -ENOMEM );
|
|
|
-
|
|
|
- SLMState = FILLING;
|
|
|
- SLMBufOwner = device;
|
|
|
- }
|
|
|
-
|
|
|
- n = count;
|
|
|
- filled = BufferP - SLMBuffer;
|
|
|
- if (filled + n > BufferSize)
|
|
|
- n = BufferSize - filled;
|
|
|
-
|
|
|
- if (copy_from_user(BufferP, buf, n))
|
|
|
- return -EFAULT;
|
|
|
- BufferP += n;
|
|
|
- filled += n;
|
|
|
-
|
|
|
- if (filled == BufferSize) {
|
|
|
- /* Check the paper size again! The user may have switched it in the
|
|
|
- * time between starting the data and finishing them. Would end up in
|
|
|
- * a trashy page... */
|
|
|
- if (slm_get_pagesize( device, &w, &h ))
|
|
|
- return( -EIO );
|
|
|
- if (BufferSize != w*h/8) {
|
|
|
- printk( KERN_NOTICE "slm%d: page size changed while printing\n",
|
|
|
- device );
|
|
|
- return( -EAGAIN );
|
|
|
- }
|
|
|
-
|
|
|
- SLMState = PRINTING;
|
|
|
- /* choose a slice size that is a multiple of the line size */
|
|
|
-#ifndef SLM_CONT_CNT_REPROG
|
|
|
- SLMSliceSize = SLM_SLICE_SIZE(w);
|
|
|
-#endif
|
|
|
-
|
|
|
- start_print( device );
|
|
|
- sleep_on( &print_wait );
|
|
|
- if (SLMError && IS_REAL_ERROR(SLMError)) {
|
|
|
- printk( KERN_ERR "slm%d: %s\n", device, slm_errstr(SLMError) );
|
|
|
- n = -EIO;
|
|
|
- }
|
|
|
-
|
|
|
- SLMState = IDLE;
|
|
|
- BufferP = SLMBuffer;
|
|
|
- wake_up_interruptible( &slm_wait );
|
|
|
- }
|
|
|
-
|
|
|
- return( n );
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-/* ---------------------------------------------------------------------- */
|
|
|
-/* ioctl Functions */
|
|
|
-
|
|
|
-
|
|
|
-static int slm_ioctl( struct inode *inode, struct file *file,
|
|
|
- unsigned int cmd, unsigned long arg )
|
|
|
-
|
|
|
-{ int device = iminor(inode), err;
|
|
|
-
|
|
|
- /* I can think of setting:
|
|
|
- * - manual feed
|
|
|
- * - paper format
|
|
|
- * - copy count
|
|
|
- * - ...
|
|
|
- * but haven't implemented that yet :-)
|
|
|
- * BTW, has anybody better docs about the MODE SENSE/MODE SELECT data?
|
|
|
- */
|
|
|
- switch( cmd ) {
|
|
|
-
|
|
|
- case SLMIORESET: /* reset buffer, i.e. empty the buffer */
|
|
|
- if (!(file->f_mode & 2))
|
|
|
- return( -EINVAL );
|
|
|
- if (SLMState == PRINTING)
|
|
|
- return( -EBUSY );
|
|
|
- SLMState = IDLE;
|
|
|
- BufferP = SLMBuffer;
|
|
|
- wake_up_interruptible( &slm_wait );
|
|
|
- return( 0 );
|
|
|
-
|
|
|
- case SLMIOGSTAT: { /* get status */
|
|
|
- int stat;
|
|
|
- char *str;
|
|
|
-
|
|
|
- stat = slm_req_sense( device );
|
|
|
- if (arg) {
|
|
|
- str = slm_errstr( stat );
|
|
|
- if (put_user(stat,
|
|
|
- (long *)&((struct SLM_status *)arg)->stat))
|
|
|
- return -EFAULT;
|
|
|
- if (copy_to_user( ((struct SLM_status *)arg)->str, str,
|
|
|
- strlen(str) + 1))
|
|
|
- return -EFAULT;
|
|
|
- }
|
|
|
- return( stat );
|
|
|
- }
|
|
|
-
|
|
|
- case SLMIOGPSIZE: { /* get paper size */
|
|
|
- int w, h;
|
|
|
-
|
|
|
- if ((err = slm_get_pagesize( device, &w, &h ))) return( err );
|
|
|
-
|
|
|
- if (put_user(w, (long *)&((struct SLM_paper_size *)arg)->width))
|
|
|
- return -EFAULT;
|
|
|
- if (put_user(h, (long *)&((struct SLM_paper_size *)arg)->height))
|
|
|
- return -EFAULT;
|
|
|
- return( 0 );
|
|
|
- }
|
|
|
-
|
|
|
- case SLMIOGMFEED: /* get manual feed */
|
|
|
- return( -EINVAL );
|
|
|
-
|
|
|
- case SLMIOSPSIZE: /* set paper size */
|
|
|
- return( -EINVAL );
|
|
|
-
|
|
|
- case SLMIOSMFEED: /* set manual feed */
|
|
|
- return( -EINVAL );
|
|
|
-
|
|
|
- }
|
|
|
- return( -EINVAL );
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-/* ---------------------------------------------------------------------- */
|
|
|
-/* Opening and Closing */
|
|
|
-
|
|
|
-
|
|
|
-static int slm_open( struct inode *inode, struct file *file )
|
|
|
-
|
|
|
-{ int device;
|
|
|
- struct slm *sip;
|
|
|
-
|
|
|
- device = iminor(inode);
|
|
|
- if (device >= N_SLM_Printers)
|
|
|
- return( -ENXIO );
|
|
|
- sip = &slm_info[device];
|
|
|
-
|
|
|
- if (file->f_mode & 2) {
|
|
|
- /* open for writing is exclusive */
|
|
|
- if ( !atomic_dec_and_test(&sip->wr_ok) ) {
|
|
|
- atomic_inc(&sip->wr_ok);
|
|
|
- return( -EBUSY );
|
|
|
- }
|
|
|
- }
|
|
|
- if (file->f_mode & 1) {
|
|
|
- /* open for reading is exclusive */
|
|
|
- if ( !atomic_dec_and_test(&sip->rd_ok) ) {
|
|
|
- atomic_inc(&sip->rd_ok);
|
|
|
- return( -EBUSY );
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- return( 0 );
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static int slm_release( struct inode *inode, struct file *file )
|
|
|
-
|
|
|
-{ int device;
|
|
|
- struct slm *sip;
|
|
|
-
|
|
|
- device = iminor(inode);
|
|
|
- sip = &slm_info[device];
|
|
|
-
|
|
|
- if (file->f_mode & 2)
|
|
|
- atomic_inc( &sip->wr_ok );
|
|
|
- if (file->f_mode & 1)
|
|
|
- atomic_inc( &sip->rd_ok );
|
|
|
-
|
|
|
- return( 0 );
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-/* ---------------------------------------------------------------------- */
|
|
|
-/* ACSI Primitives for the SLM */
|
|
|
-
|
|
|
-
|
|
|
-static int slm_req_sense( int device )
|
|
|
-
|
|
|
-{ int stat, rv;
|
|
|
- struct slm *sip = &slm_info[device];
|
|
|
-
|
|
|
- stdma_lock( NULL, NULL );
|
|
|
-
|
|
|
- CMDSET_TARG_LUN( slmreqsense_cmd, sip->target, sip->lun );
|
|
|
- if (!acsicmd_nodma( slmreqsense_cmd, 0 ) ||
|
|
|
- (stat = acsi_getstatus()) < 0)
|
|
|
- rv = SLMSTAT_ACSITO;
|
|
|
- else
|
|
|
- rv = stat & 0x1f;
|
|
|
-
|
|
|
- ENABLE_IRQ();
|
|
|
- stdma_release();
|
|
|
- return( rv );
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static int slm_mode_sense( int device, char *buffer, int abs_flag )
|
|
|
-
|
|
|
-{ unsigned char stat, len;
|
|
|
- int rv = 0;
|
|
|
- struct slm *sip = &slm_info[device];
|
|
|
-
|
|
|
- stdma_lock( NULL, NULL );
|
|
|
-
|
|
|
- CMDSET_TARG_LUN( slmmsense_cmd, sip->target, sip->lun );
|
|
|
- slmmsense_cmd[5] = abs_flag ? 0x80 : 0;
|
|
|
- if (!acsicmd_nodma( slmmsense_cmd, 0 )) {
|
|
|
- rv = SLMSTAT_ACSITO;
|
|
|
- goto the_end;
|
|
|
- }
|
|
|
-
|
|
|
- if (!acsi_extstatus( &stat, 1 )) {
|
|
|
- acsi_end_extstatus();
|
|
|
- rv = SLMSTAT_ACSITO;
|
|
|
- goto the_end;
|
|
|
- }
|
|
|
-
|
|
|
- if (!acsi_extstatus( &len, 1 )) {
|
|
|
- acsi_end_extstatus();
|
|
|
- rv = SLMSTAT_ACSITO;
|
|
|
- goto the_end;
|
|
|
- }
|
|
|
- buffer[0] = len;
|
|
|
- if (!acsi_extstatus( buffer+1, len )) {
|
|
|
- acsi_end_extstatus();
|
|
|
- rv = SLMSTAT_ACSITO;
|
|
|
- goto the_end;
|
|
|
- }
|
|
|
-
|
|
|
- acsi_end_extstatus();
|
|
|
- rv = stat & 0x1f;
|
|
|
-
|
|
|
- the_end:
|
|
|
- ENABLE_IRQ();
|
|
|
- stdma_release();
|
|
|
- return( rv );
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-#if 0
|
|
|
-/* currently unused */
|
|
|
-static int slm_mode_select( int device, char *buffer, int len,
|
|
|
- int default_flag )
|
|
|
-
|
|
|
-{ int stat, rv;
|
|
|
- struct slm *sip = &slm_info[device];
|
|
|
-
|
|
|
- stdma_lock( NULL, NULL );
|
|
|
-
|
|
|
- CMDSET_TARG_LUN( slmmselect_cmd, sip->target, sip->lun );
|
|
|
- slmmselect_cmd[5] = default_flag ? 0x80 : 0;
|
|
|
- if (!acsicmd_nodma( slmmselect_cmd, 0 )) {
|
|
|
- rv = SLMSTAT_ACSITO;
|
|
|
- goto the_end;
|
|
|
- }
|
|
|
-
|
|
|
- if (!default_flag) {
|
|
|
- unsigned char c = len;
|
|
|
- if (!acsi_extcmd( &c, 1 )) {
|
|
|
- rv = SLMSTAT_ACSITO;
|
|
|
- goto the_end;
|
|
|
- }
|
|
|
- if (!acsi_extcmd( buffer, len )) {
|
|
|
- rv = SLMSTAT_ACSITO;
|
|
|
- goto the_end;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- stat = acsi_getstatus();
|
|
|
- rv = (stat < 0 ? SLMSTAT_ACSITO : stat);
|
|
|
-
|
|
|
- the_end:
|
|
|
- ENABLE_IRQ();
|
|
|
- stdma_release();
|
|
|
- return( rv );
|
|
|
-}
|
|
|
-#endif
|
|
|
-
|
|
|
-
|
|
|
-static int slm_get_pagesize( int device, int *w, int *h )
|
|
|
-
|
|
|
-{ char buf[256];
|
|
|
- int stat;
|
|
|
-
|
|
|
- stat = slm_mode_sense( device, buf, 0 );
|
|
|
- ENABLE_IRQ();
|
|
|
- stdma_release();
|
|
|
-
|
|
|
- if (stat != SLMSTAT_OK)
|
|
|
- return( -EIO );
|
|
|
-
|
|
|
- *w = (buf[3] << 8) | buf[4];
|
|
|
- *h = (buf[1] << 8) | buf[2];
|
|
|
- return( 0 );
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-/* ---------------------------------------------------------------------- */
|
|
|
-/* Initialization */
|
|
|
-
|
|
|
-
|
|
|
-int attach_slm( int target, int lun )
|
|
|
-
|
|
|
-{ static int did_register;
|
|
|
- int len;
|
|
|
-
|
|
|
- if (N_SLM_Printers >= MAX_SLM) {
|
|
|
- printk( KERN_WARNING "Too much SLMs\n" );
|
|
|
- return( 0 );
|
|
|
- }
|
|
|
-
|
|
|
- /* do an INQUIRY */
|
|
|
- udelay(100);
|
|
|
- CMDSET_TARG_LUN( slminquiry_cmd, target, lun );
|
|
|
- if (!acsicmd_nodma( slminquiry_cmd, 0 )) {
|
|
|
- inq_timeout:
|
|
|
- printk( KERN_ERR "SLM inquiry command timed out.\n" );
|
|
|
- inq_fail:
|
|
|
- acsi_end_extstatus();
|
|
|
- return( 0 );
|
|
|
- }
|
|
|
- /* read status and header of return data */
|
|
|
- if (!acsi_extstatus( SLMBuffer, 6 ))
|
|
|
- goto inq_timeout;
|
|
|
-
|
|
|
- if (SLMBuffer[1] != 2) { /* device type == printer? */
|
|
|
- printk( KERN_ERR "SLM inquiry returned device type != printer\n" );
|
|
|
- goto inq_fail;
|
|
|
- }
|
|
|
- len = SLMBuffer[5];
|
|
|
-
|
|
|
- /* read id string */
|
|
|
- if (!acsi_extstatus( SLMBuffer, len ))
|
|
|
- goto inq_timeout;
|
|
|
- acsi_end_extstatus();
|
|
|
- SLMBuffer[len] = 0;
|
|
|
-
|
|
|
- if (!did_register) {
|
|
|
- did_register = 1;
|
|
|
- }
|
|
|
-
|
|
|
- slm_info[N_SLM_Printers].target = target;
|
|
|
- slm_info[N_SLM_Printers].lun = lun;
|
|
|
- atomic_set(&slm_info[N_SLM_Printers].wr_ok, 1 );
|
|
|
- atomic_set(&slm_info[N_SLM_Printers].rd_ok, 1 );
|
|
|
-
|
|
|
- printk( KERN_INFO " Printer: %s\n", SLMBuffer );
|
|
|
- printk( KERN_INFO "Detected slm%d at id %d lun %d\n",
|
|
|
- N_SLM_Printers, target, lun );
|
|
|
- N_SLM_Printers++;
|
|
|
- return( 1 );
|
|
|
-}
|
|
|
-
|
|
|
-int slm_init( void )
|
|
|
-
|
|
|
-{
|
|
|
- int i;
|
|
|
- if (register_chrdev( ACSI_MAJOR, "slm", &slm_fops )) {
|
|
|
- printk( KERN_ERR "Unable to get major %d for ACSI SLM\n", ACSI_MAJOR );
|
|
|
- return -EBUSY;
|
|
|
- }
|
|
|
-
|
|
|
- if (!(SLMBuffer = atari_stram_alloc( SLM_BUFFER_SIZE, "SLM" ))) {
|
|
|
- printk( KERN_ERR "Unable to get SLM ST-Ram buffer.\n" );
|
|
|
- unregister_chrdev( ACSI_MAJOR, "slm" );
|
|
|
- return -ENOMEM;
|
|
|
- }
|
|
|
- BufferP = SLMBuffer;
|
|
|
- SLMState = IDLE;
|
|
|
-
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-#ifdef MODULE
|
|
|
-
|
|
|
-/* from acsi.c */
|
|
|
-void acsi_attach_SLMs( int (*attach_func)( int, int ) );
|
|
|
-
|
|
|
-int init_module(void)
|
|
|
-{
|
|
|
- int err;
|
|
|
-
|
|
|
- if ((err = slm_init()))
|
|
|
- return( err );
|
|
|
- /* This calls attach_slm() for every target/lun where acsi.c detected a
|
|
|
- * printer */
|
|
|
- acsi_attach_SLMs( attach_slm );
|
|
|
- return( 0 );
|
|
|
-}
|
|
|
-
|
|
|
-void cleanup_module(void)
|
|
|
-{
|
|
|
- if (unregister_chrdev( ACSI_MAJOR, "slm" ) != 0)
|
|
|
- printk( KERN_ERR "acsi_slm: cleanup_module failed\n");
|
|
|
- atari_stram_free( SLMBuffer );
|
|
|
-}
|
|
|
-#endif
|
Adrian Bunk