mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-23 09:56:00 +00:00
atari_scsi, sun3_scsi: Remove global Scsi_Host pointer
This refactoring removes two global Scsi_Host pointers. This improves consistency with other ncr5380 drivers. Adopting the same conventions as the other drivers makes them easier to read. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Reviewed-by: Hannes Reinecke <hare@suse.com> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
parent
b746545f8b
commit
cd46140a9a
@ -1920,7 +1920,7 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
|
||||
/* this command setup for dma yet? */
|
||||
if ((count >= DMA_MIN_SIZE) && (sun3_dma_setup_done != cmd)) {
|
||||
if (cmd->request->cmd_type == REQ_TYPE_FS) {
|
||||
sun3scsi_dma_setup(d, count,
|
||||
sun3scsi_dma_setup(instance, d, count,
|
||||
rq_data_dir(cmd->request));
|
||||
sun3_dma_setup_done = cmd;
|
||||
}
|
||||
@ -2458,7 +2458,8 @@ static void NCR5380_reselect(struct Scsi_Host *instance)
|
||||
}
|
||||
/* setup this command for dma if not already */
|
||||
if ((count >= DMA_MIN_SIZE) && (sun3_dma_setup_done != tmp)) {
|
||||
sun3scsi_dma_setup(d, count, rq_data_dir(tmp->request));
|
||||
sun3scsi_dma_setup(instance, d, count,
|
||||
rq_data_dir(tmp->request));
|
||||
sun3_dma_setup_done = tmp;
|
||||
}
|
||||
}
|
||||
|
@ -159,14 +159,10 @@ static inline unsigned long SCSI_DMA_GETADR(void)
|
||||
return adr;
|
||||
}
|
||||
|
||||
#define HOSTDATA_DMALEN (((struct NCR5380_hostdata *) \
|
||||
(atari_scsi_host->hostdata))->dma_len)
|
||||
|
||||
#ifdef REAL_DMA
|
||||
static void atari_scsi_fetch_restbytes(void);
|
||||
#endif
|
||||
|
||||
static struct Scsi_Host *atari_scsi_host;
|
||||
static unsigned char (*atari_scsi_reg_read)(unsigned char reg);
|
||||
static void (*atari_scsi_reg_write)(unsigned char reg, unsigned char value);
|
||||
|
||||
@ -262,15 +258,17 @@ static void scsi_dma_buserr(int irq, void *dummy)
|
||||
#endif
|
||||
|
||||
|
||||
static irqreturn_t scsi_tt_intr(int irq, void *dummy)
|
||||
static irqreturn_t scsi_tt_intr(int irq, void *dev)
|
||||
{
|
||||
#ifdef REAL_DMA
|
||||
struct Scsi_Host *instance = dev;
|
||||
struct NCR5380_hostdata *hostdata = shost_priv(instance);
|
||||
int dma_stat;
|
||||
|
||||
dma_stat = tt_scsi_dma.dma_ctrl;
|
||||
|
||||
dprintk(NDEBUG_INTR, "scsi%d: NCR5380 interrupt, DMA status = %02x\n",
|
||||
atari_scsi_host->host_no, dma_stat & 0xff);
|
||||
dsprintk(NDEBUG_INTR, instance, "NCR5380 interrupt, DMA status = %02x\n",
|
||||
dma_stat & 0xff);
|
||||
|
||||
/* Look if it was the DMA that has interrupted: First possibility
|
||||
* is that a bus error occurred...
|
||||
@ -293,7 +291,8 @@ static irqreturn_t scsi_tt_intr(int irq, void *dummy)
|
||||
* data reg!
|
||||
*/
|
||||
if ((dma_stat & 0x02) && !(dma_stat & 0x40)) {
|
||||
atari_dma_residual = HOSTDATA_DMALEN - (SCSI_DMA_READ_P(dma_addr) - atari_dma_startaddr);
|
||||
atari_dma_residual = hostdata->dma_len -
|
||||
(SCSI_DMA_READ_P(dma_addr) - atari_dma_startaddr);
|
||||
|
||||
dprintk(NDEBUG_DMA, "SCSI DMA: There are %ld residual bytes.\n",
|
||||
atari_dma_residual);
|
||||
@ -345,15 +344,17 @@ static irqreturn_t scsi_tt_intr(int irq, void *dummy)
|
||||
|
||||
#endif /* REAL_DMA */
|
||||
|
||||
NCR5380_intr(irq, dummy);
|
||||
NCR5380_intr(irq, dev);
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
|
||||
static irqreturn_t scsi_falcon_intr(int irq, void *dummy)
|
||||
static irqreturn_t scsi_falcon_intr(int irq, void *dev)
|
||||
{
|
||||
#ifdef REAL_DMA
|
||||
struct Scsi_Host *instance = dev;
|
||||
struct NCR5380_hostdata *hostdata = shost_priv(instance);
|
||||
int dma_stat;
|
||||
|
||||
/* Turn off DMA and select sector counter register before
|
||||
@ -388,7 +389,7 @@ static irqreturn_t scsi_falcon_intr(int irq, void *dummy)
|
||||
printk(KERN_ERR "SCSI DMA error: %ld bytes lost in "
|
||||
"ST-DMA fifo\n", transferred & 15);
|
||||
|
||||
atari_dma_residual = HOSTDATA_DMALEN - transferred;
|
||||
atari_dma_residual = hostdata->dma_len - transferred;
|
||||
dprintk(NDEBUG_DMA, "SCSI DMA: There are %ld residual bytes.\n",
|
||||
atari_dma_residual);
|
||||
} else
|
||||
@ -400,13 +401,14 @@ static irqreturn_t scsi_falcon_intr(int irq, void *dummy)
|
||||
* data to the original destination address.
|
||||
*/
|
||||
memcpy(atari_dma_orig_addr, phys_to_virt(atari_dma_startaddr),
|
||||
HOSTDATA_DMALEN - atari_dma_residual);
|
||||
hostdata->dma_len - atari_dma_residual);
|
||||
atari_dma_orig_addr = NULL;
|
||||
}
|
||||
|
||||
#endif /* REAL_DMA */
|
||||
|
||||
NCR5380_intr(irq, dummy);
|
||||
NCR5380_intr(irq, dev);
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
@ -873,7 +875,6 @@ static int __init atari_scsi_probe(struct platform_device *pdev)
|
||||
error = -ENOMEM;
|
||||
goto fail_alloc;
|
||||
}
|
||||
atari_scsi_host = instance;
|
||||
|
||||
instance->irq = irq->start;
|
||||
|
||||
|
@ -56,9 +56,9 @@
|
||||
#define NCR5380_info sun3scsi_info
|
||||
|
||||
#define NCR5380_dma_read_setup(instance, data, count) \
|
||||
sun3scsi_dma_setup(data, count, 0)
|
||||
sun3scsi_dma_setup(instance, data, count, 0)
|
||||
#define NCR5380_dma_write_setup(instance, data, count) \
|
||||
sun3scsi_dma_setup(data, count, 1)
|
||||
sun3scsi_dma_setup(instance, data, count, 1)
|
||||
#define NCR5380_dma_residual(instance) \
|
||||
sun3scsi_dma_residual(instance)
|
||||
#define NCR5380_dma_xfer_len(instance, cmd, phase) \
|
||||
@ -99,7 +99,6 @@ static unsigned char *sun3_dma_orig_addr;
|
||||
static unsigned long sun3_dma_orig_count;
|
||||
static int sun3_dma_active;
|
||||
static unsigned long last_residual;
|
||||
static struct Scsi_Host *default_instance;
|
||||
|
||||
/*
|
||||
* NCR 5380 register access functions
|
||||
@ -142,8 +141,9 @@ static inline void sun3_udc_write(unsigned short val, unsigned char reg)
|
||||
// safe bits for the CSR
|
||||
#define CSR_GOOD 0x060f
|
||||
|
||||
static irqreturn_t scsi_sun3_intr(int irq, void *dummy)
|
||||
static irqreturn_t scsi_sun3_intr(int irq, void *dev)
|
||||
{
|
||||
struct Scsi_Host *instance = dev;
|
||||
unsigned short csr = dregs->csr;
|
||||
int handled = 0;
|
||||
|
||||
@ -152,46 +152,24 @@ static irqreturn_t scsi_sun3_intr(int irq, void *dummy)
|
||||
#endif
|
||||
|
||||
if(csr & ~CSR_GOOD) {
|
||||
if(csr & CSR_DMA_BUSERR) {
|
||||
printk("scsi%d: bus error in dma\n", default_instance->host_no);
|
||||
}
|
||||
|
||||
if(csr & CSR_DMA_CONFLICT) {
|
||||
printk("scsi%d: dma conflict\n", default_instance->host_no);
|
||||
}
|
||||
if (csr & CSR_DMA_BUSERR)
|
||||
shost_printk(KERN_ERR, instance, "bus error in DMA\n");
|
||||
if (csr & CSR_DMA_CONFLICT)
|
||||
shost_printk(KERN_ERR, instance, "DMA conflict\n");
|
||||
handled = 1;
|
||||
}
|
||||
|
||||
if(csr & (CSR_SDB_INT | CSR_DMA_INT)) {
|
||||
NCR5380_intr(irq, dummy);
|
||||
NCR5380_intr(irq, dev);
|
||||
handled = 1;
|
||||
}
|
||||
|
||||
return IRQ_RETVAL(handled);
|
||||
}
|
||||
|
||||
/*
|
||||
* Debug stuff - to be called on NMI, or sysrq key. Use at your own risk;
|
||||
* reentering NCR5380_print_status seems to have ugly side effects
|
||||
*/
|
||||
|
||||
/* this doesn't seem to get used at all -- sam */
|
||||
#if 0
|
||||
void sun3_sun3_debug (void)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
if (default_instance) {
|
||||
local_irq_save(flags);
|
||||
NCR5380_print_status(default_instance);
|
||||
local_irq_restore(flags);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
/* sun3scsi_dma_setup() -- initialize the dma controller for a read/write */
|
||||
static unsigned long sun3scsi_dma_setup(void *data, unsigned long count, int write_flag)
|
||||
static unsigned long sun3scsi_dma_setup(struct Scsi_Host *instance,
|
||||
void *data, unsigned long count, int write_flag)
|
||||
{
|
||||
void *addr;
|
||||
|
||||
@ -243,10 +221,9 @@ static unsigned long sun3scsi_dma_setup(void *data, unsigned long count, int wri
|
||||
dregs->csr |= CSR_FIFO;
|
||||
|
||||
if(dregs->fifo_count != count) {
|
||||
printk("scsi%d: fifo_mismatch %04x not %04x\n",
|
||||
default_instance->host_no, dregs->fifo_count,
|
||||
(unsigned int) count);
|
||||
NCR5380_dprint(NDEBUG_DMA, default_instance);
|
||||
shost_printk(KERN_ERR, instance, "FIFO mismatch %04x not %04x\n",
|
||||
dregs->fifo_count, (unsigned int) count);
|
||||
NCR5380_dprint(NDEBUG_DMA, instance);
|
||||
}
|
||||
|
||||
/* setup udc */
|
||||
@ -281,21 +258,6 @@ static unsigned long sun3scsi_dma_setup(void *data, unsigned long count, int wri
|
||||
|
||||
}
|
||||
|
||||
#ifndef SUN3_SCSI_VME
|
||||
static inline unsigned long sun3scsi_dma_count(struct Scsi_Host *instance)
|
||||
{
|
||||
unsigned short resid;
|
||||
|
||||
dregs->udc_addr = 0x32;
|
||||
udelay(SUN3_DMA_DELAY);
|
||||
resid = dregs->udc_data;
|
||||
udelay(SUN3_DMA_DELAY);
|
||||
resid *= 2;
|
||||
|
||||
return (unsigned long) resid;
|
||||
}
|
||||
#endif
|
||||
|
||||
static inline unsigned long sun3scsi_dma_residual(struct Scsi_Host *instance)
|
||||
{
|
||||
return last_residual;
|
||||
@ -393,7 +355,10 @@ static int sun3scsi_dma_finish(int write_flag)
|
||||
}
|
||||
}
|
||||
|
||||
count = sun3scsi_dma_count(default_instance);
|
||||
dregs->udc_addr = 0x32;
|
||||
udelay(SUN3_DMA_DELAY);
|
||||
count = 2 * dregs->udc_data;
|
||||
udelay(SUN3_DMA_DELAY);
|
||||
|
||||
fifo = dregs->fifo_count;
|
||||
last_residual = fifo;
|
||||
@ -547,7 +512,6 @@ static int __init sun3_scsi_probe(struct platform_device *pdev)
|
||||
error = -ENOMEM;
|
||||
goto fail_alloc;
|
||||
}
|
||||
default_instance = instance;
|
||||
|
||||
instance->io_port = (unsigned long)ioaddr;
|
||||
instance->irq = irq->start;
|
||||
|
Loading…
Reference in New Issue
Block a user