aha1542: rework configuration parameters (f71429ab) · Commits · EulixOS / Software / Kernel

drivers/scsi/aha1542.c

+54 −159

Original line number	Diff line number	Diff line
		@@ -53,56 +53,30 @@
		#else
		#define DEB(x)
		#endif
		#define MAXBOARDS 4

		/*
		static const char RCSid[] = "$Header: /usr/src/linux/kernel/blk_drv/scsi/RCS/aha1542.c,v 1.1 1992/07/24 06:27:38 root Exp root $";
		*/

		/* The adaptec can be configured for quite a number of addresses, but
		I generally do not want the card poking around at random. We allow
		two addresses - this allows people to use the Adaptec with a Midi
		card, which also used 0x330 -- can be overridden with LILO! */

		#define MAXBOARDS 4 /* Increase this and the sizes of the
		arrays below, if you need more.. */
		static bool isapnp = 1;
		module_param(isapnp, bool, 0);
		MODULE_PARM_DESC(isapnp, "enable PnP support (default=1)");

		/* Boards 3,4 slots are reserved for ISAPnP scans */
		static int io[MAXBOARDS] = { 0x330, 0x334, 0, 0 };
		module_param_array(io, int, NULL, 0);
		MODULE_PARM_DESC(io, "base IO address of controller (0x130,0x134,0x230,0x234,0x330,0x334, default=0x330,0x334)");

		static unsigned int bases[MAXBOARDS] = {0x330, 0x334, 0, 0};
		/* time AHA spends on the AT-bus during data transfer */
		static int bus_on[MAXBOARDS] = { -1, -1, -1, -1 }; /* power-on default: 11us */
		module_param_array(bus_on, int, NULL, 0);
		MODULE_PARM_DESC(bus_on, "bus on time [us] (2-15, default=-1 [HW default: 11])");

		/* set by aha1542_setup according to the command line; they also may
		be marked __initdata, but require zero initializers then */
		/* time AHA spends off the bus (not to monopolize it) during data transfer */
		static int bus_off[MAXBOARDS] = { -1, -1, -1, -1 }; /* power-on default: 4us */
		module_param_array(bus_off, int, NULL, 0);
		MODULE_PARM_DESC(bus_off, "bus off time [us] (1-64, default=-1 [HW default: 4])");

		static int setup_called[MAXBOARDS];
		static int setup_buson[MAXBOARDS];
		static int setup_busoff[MAXBOARDS];
		static int setup_dmaspeed[MAXBOARDS] = { -1, -1, -1, -1 };

		/*
		* LILO/Module params: aha1542=<PORTBASE>[,<BUSON>,<BUSOFF>[,<DMASPEED>]]
		*
		* Where: <PORTBASE> is any of the valid AHA addresses:
		* 0x130, 0x134, 0x230, 0x234, 0x330, 0x334
		* <BUSON> is the time (in microsecs) that AHA spends on the AT-bus
		* when transferring data. 1542A power-on default is 11us,
		* valid values are in range: 2..15 (decimal)
		* <BUSOFF> is the time that AHA spends OFF THE BUS after while
		* it is transferring data (not to monopolize the bus).
		* Power-on default is 4us, valid range: 1..64 microseconds.
		* <DMASPEED> Default is jumper selected (1542A: on the J1),
		* but experimenter can alter it with this.
		* Valid values: 5, 6, 7, 8, 10 (MB/s)
		* Factory default is 5 MB/s.
		*/

		#if defined(MODULE)
		static bool isapnp = 0;
		static int aha1542[] = {0x330, 11, 4, -1};
		module_param_array(aha1542, int, NULL, 0);
		module_param(isapnp, bool, 0);
		#else
		static int isapnp = 1;
		#endif
		/* default is jumper selected (J1 on 1542A), factory default = 5 MB/s */
		static int dma_speed[MAXBOARDS] = { -1, -1, -1, -1 };
		module_param_array(dma_speed, int, NULL, 0);
		MODULE_PARM_DESC(dma_speed, "DMA speed [MB/s] (5,6,7,8,10, default=-1 [by jumper])");

		#define BIOS_TRANSLATION_1632 0 /* Used by some old 1542A boards */
		#define BIOS_TRANSLATION_6432 1 /* Default case these days */
		@@ -792,101 +766,48 @@ static int aha1542_query(int base_io, int *transl)
		return 0;
		}

		#ifndef MODULE
		static char *setup_str[MAXBOARDS] __initdata;
		static int setup_idx = 0;

		static void __init aha1542_setup(char str, int ints)
		static u8 dma_speed_hw(int dma_speed)
		{
		const char *ahausage = "aha1542: usage: aha1542=<PORTBASE>[,<BUSON>,<BUSOFF>[,<DMASPEED>]]\n";
		int setup_portbase;

		if (setup_idx >= MAXBOARDS) {
		printk(KERN_ERR "aha1542: aha1542_setup called too many times! Bad LILO params ?\n");
		printk(KERN_ERR " Entryline 1: %s\n", setup_str[0]);
		printk(KERN_ERR " Entryline 2: %s\n", setup_str[1]);
		printk(KERN_ERR " This line: %s\n", str);
		return;
		}
		if (ints[0] < 1 \|\| ints[0] > 4) {
		printk(KERN_ERR "aha1542: %s\n", str);
		printk(ahausage);
		printk(KERN_ERR "aha1542: Wrong parameters may cause system malfunction.. We try anyway..\n");
		}
		setup_called[setup_idx] = ints[0];
		setup_str[setup_idx] = str;

		setup_portbase = ints[0] >= 1 ? ints[1] : 0; /* Preserve the default value.. */
		setup_buson[setup_idx] = ints[0] >= 2 ? ints[2] : 7;
		setup_busoff[setup_idx] = ints[0] >= 3 ? ints[3] : 5;
		if (ints[0] >= 4)
		{
		int atbt = -1;
		switch (ints[4]) {
		switch (dma_speed) {
		case 5:
		atbt = 0x00;
		break;
		return 0x00;
		case 6:
		atbt = 0x04;
		break;
		return 0x04;
		case 7:
		atbt = 0x01;
		break;
		return 0x01;
		case 8:
		atbt = 0x02;
		break;
		return 0x02;
		case 10:
		atbt = 0x03;
		break;
		default:
		printk(KERN_ERR "aha1542: %s\n", str);
		printk(ahausage);
		printk(KERN_ERR "aha1542: Valid values for DMASPEED are 5-8, 10 MB/s. Using jumper defaults.\n");
		break;
		return 0x03;
		}
		setup_dmaspeed[setup_idx] = atbt;
		}
		if (setup_portbase != 0)
		bases[setup_idx] = setup_portbase;

		++setup_idx;
		return 0xff; /* invalid */
		}

		static int __init do_setup(char *str)
		{
		int ints[5];

		int count=setup_idx;

		get_options(str, ARRAY_SIZE(ints), ints);
		aha1542_setup(str,ints);

		return count<setup_idx;
		}

		__setup("aha1542=",do_setup);
		#endif

		/* Set the Bus on/off-times as not to ruin floppy performance */
		static void aha1542_set_bus_times(int indx)
		{
		unsigned int base_io = bases[indx];
		u8 oncmd[] = {CMD_BUSON_TIME, 7};
		u8 offcmd[] = {CMD_BUSOFF_TIME, 5};
		unsigned int base_io = io[indx];

		if (bus_on[indx] > 0) {
		u8 oncmd[] = { CMD_BUSON_TIME, clamp(bus_on[indx], 2, 15) };

		if (setup_called[indx]) {
		oncmd[1] = setup_buson[indx];
		offcmd[1] = setup_busoff[indx];
		}
		aha1542_intr_reset(base_io);
		if (aha1542_out(base_io, oncmd, 2))
		goto fail;
		}

		if (bus_off[indx] > 0) {
		u8 offcmd[] = { CMD_BUSOFF_TIME, clamp(bus_off[indx], 1, 64) };

		aha1542_intr_reset(base_io);
		if (aha1542_out(base_io, offcmd, 2))
		goto fail;
		if (setup_dmaspeed[indx] >= 0) {
		u8 dmacmd[] = {CMD_DMASPEED, 0};
		dmacmd[1] = setup_dmaspeed[indx];
		}

		if (dma_speed_hw(dma_speed[indx]) != 0xff) {
		u8 dmacmd[] = { CMD_DMASPEED, dma_speed_hw(dma_speed[indx]) };

		aha1542_intr_reset(base_io);
		if (aha1542_out(base_io, dmacmd, 2))
		goto fail;
		@@ -901,7 +822,7 @@ static void aha1542_set_bus_times(int indx)
		/* return non-zero on detection */
		static struct Scsi_Host aha1542_hw_init(struct scsi_host_template tpnt, struct device *pdev, int indx)
		{
		unsigned int base_io = bases[indx];
		unsigned int base_io = io[indx];
		struct Scsi_Host *shpnt;
		struct aha1542_hostdata *aha1542;

		@@ -1207,19 +1128,19 @@ static int aha1542_pnp_probe(struct pnp_dev pdev, const struct pnp_device_id i
		int indx;
		struct Scsi_Host *sh;

		for (indx = 0; indx < ARRAY_SIZE(bases); indx++) {
		if (bases[indx])
		for (indx = 0; indx < ARRAY_SIZE(io); indx++) {
		if (io[indx])
		continue;

		if (pnp_activate_dev(pdev) < 0)
		continue;

		bases[indx] = pnp_port_start(pdev, 0);
		io[indx] = pnp_port_start(pdev, 0);

		/* The card can be queried for its DMA, we have
		the DMA set up that is enough */

		printk(KERN_INFO "ISAPnP found an AHA1535 at I/O 0x%03X\n", bases[indx]);
		printk(KERN_INFO "ISAPnP found an AHA1535 at I/O 0x%03X\n", io[indx]);
		}

		sh = aha1542_hw_init(&driver_template, &pdev->dev, indx);
		@@ -1248,32 +1169,6 @@ static int pnp_registered;
		static int __init aha1542_init(void)
		{
		int ret = 0;
		#ifdef MODULE
		int atbt = -1;

		bases[0] = aha1542[0];
		setup_buson[0] = aha1542[1];
		setup_busoff[0] = aha1542[2];

		switch (aha1542[3]) {
		case 5:
		atbt = 0x00;
		break;
		case 6:
		atbt = 0x04;
		break;
		case 7:
		atbt = 0x01;
		break;
		case 8:
		atbt = 0x02;
		break;
		case 10:
		atbt = 0x03;
		break;
		};
		setup_dmaspeed[0] = atbt;
		#endif

		#ifdef CONFIG_PNP
		if (isapnp) {