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[ARM] rpc: acornscsi: update to new style ecard driver
Update acornscsi as per all the other ecard drivers to use MMIO accessors rather than the obsolete 'pc io' style inb/outb accessors. Use ecard_request_resources()/ecard_release_resources() for easier resource handling, rather than requesting 5 separate regions individually. Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
Russell King
parent
a796ef7035
commit
e95a1b656a
2 changed files with 75 additions and 94 deletions
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@ -136,9 +136,9 @@
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#include <linux/init.h>
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#include <linux/bitops.h>
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#include <linux/stringify.h>
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#include <linux/io.h>
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#include <asm/system.h>
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#include <asm/io.h>
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#include <asm/ecard.h>
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#include "../scsi.h"
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@ -198,35 +198,40 @@ static void acornscsi_abortcmd(AS_Host *host, unsigned char tag);
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* Miscellaneous
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*/
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/* Offsets from MEMC base */
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#define SBIC_REGIDX 0x2000
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#define SBIC_REGVAL 0x2004
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#define DMAC_OFFSET 0x3000
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/* Offsets from FAST IOC base */
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#define INT_REG 0x2000
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#define PAGE_REG 0x3000
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static inline void sbic_arm_write(AS_Host *host, unsigned int reg, unsigned int value)
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{
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__raw_writeb(reg, host->scsi.io_port);
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__raw_writeb(value, host->scsi.io_port + 4);
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writeb(reg, host->base + SBIC_REGIDX);
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writeb(value, host->base + SBIC_REGVAL);
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}
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#define sbic_arm_writenext(host,val) \
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__raw_writeb((val), (host)->scsi.io_port + 4)
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static inline int sbic_arm_read(AS_Host *host, unsigned int reg)
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{
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if(reg == SBIC_ASR)
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return __raw_readl(host->scsi.io_port) & 255;
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__raw_writeb(reg, host->scsi.io_port);
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return __raw_readl(host->scsi.io_port + 4) & 255;
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return readl(host->base + SBIC_REGIDX) & 255;
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writeb(reg, host->base + SBIC_REGIDX);
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return readl(host->base + SBIC_REGVAL) & 255;
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}
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#define sbic_arm_readnext(host) \
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__raw_readb((host)->scsi.io_port + 4)
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#define sbic_arm_writenext(host, val) writeb((val), (host)->base + SBIC_REGVAL)
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#define sbic_arm_readnext(host) readb((host)->base + SBIC_REGVAL)
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#ifdef USE_DMAC
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#define dmac_read(host,reg) \
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inb((host)->dma.io_port + (reg))
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readb((host)->base + DMAC_OFFSET + ((reg) << 2))
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#define dmac_write(host,reg,value) \
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({ outb((value), (host)->dma.io_port + (reg)); })
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({ writeb((value), (host)->base + DMAC_OFFSET + ((reg) << 2)); })
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#define dmac_clearintr(host) \
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({ outb(0, (host)->dma.io_intr_clear); })
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#define dmac_clearintr(host) writeb(0, (host)->fast + INT_REG)
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static inline unsigned int dmac_address(AS_Host *host)
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{
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@ -323,20 +328,20 @@ void acornscsi_resetcard(AS_Host *host)
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/* assert reset line */
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host->card.page_reg = 0x80;
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outb(host->card.page_reg, host->card.io_page);
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writeb(host->card.page_reg, host->fast + PAGE_REG);
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/* wait 3 cs. SCSI standard says 25ms. */
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acornscsi_csdelay(3);
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host->card.page_reg = 0;
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outb(host->card.page_reg, host->card.io_page);
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writeb(host->card.page_reg, host->fast + PAGE_REG);
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/*
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* Should get a reset from the card
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*/
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timeout = 1000;
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do {
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if (inb(host->card.io_intr) & 8)
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if (readb(host->fast + INT_REG) & 8)
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break;
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udelay(1);
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} while (--timeout);
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@ -357,7 +362,7 @@ void acornscsi_resetcard(AS_Host *host)
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*/
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timeout = 1000;
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do {
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if (inb(host->card.io_intr) & 8)
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if (readb(host->fast + INT_REG) & 8)
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break;
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udelay(1);
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} while (--timeout);
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@ -377,7 +382,7 @@ void acornscsi_resetcard(AS_Host *host)
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sbic_arm_write(host, SBIC_SOURCEID, SOURCEID_ER | SOURCEID_DSP);
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host->card.page_reg = 0x40;
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outb(host->card.page_reg, host->card.io_page);
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writeb(host->card.page_reg, host->fast + PAGE_REG);
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/* setup dmac - uPC71071 */
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dmac_write(host, DMAC_INIT, 0);
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@ -910,13 +915,13 @@ static
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void acornscsi_data_read(AS_Host *host, char *ptr,
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unsigned int start_addr, unsigned int length)
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{
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extern void __acornscsi_in(int port, char *buf, int len);
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extern void __acornscsi_in(void __iomem *, char *buf, int len);
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unsigned int page, offset, len = length;
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page = (start_addr >> 12);
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offset = start_addr & ((1 << 12) - 1);
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outb((page & 0x3f) | host->card.page_reg, host->card.io_page);
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writeb((page & 0x3f) | host->card.page_reg, host->fast + PAGE_REG);
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while (len > 0) {
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unsigned int this_len;
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@ -926,7 +931,7 @@ void acornscsi_data_read(AS_Host *host, char *ptr,
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else
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this_len = len;
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__acornscsi_in(host->card.io_ram + (offset << 1), ptr, this_len);
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__acornscsi_in(host->base + (offset << 1), ptr, this_len);
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offset += this_len;
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ptr += this_len;
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@ -935,10 +940,10 @@ void acornscsi_data_read(AS_Host *host, char *ptr,
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if (offset == (1 << 12)) {
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offset = 0;
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page ++;
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outb((page & 0x3f) | host->card.page_reg, host->card.io_page);
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writeb((page & 0x3f) | host->card.page_reg, host->fast + PAGE_REG);
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}
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}
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outb(host->card.page_reg, host->card.io_page);
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writeb(host->card.page_reg, host->fast + PAGE_REG);
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}
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/*
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@ -955,13 +960,13 @@ static
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void acornscsi_data_write(AS_Host *host, char *ptr,
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unsigned int start_addr, unsigned int length)
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{
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extern void __acornscsi_out(int port, char *buf, int len);
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extern void __acornscsi_out(void __iomem *, char *buf, int len);
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unsigned int page, offset, len = length;
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page = (start_addr >> 12);
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offset = start_addr & ((1 << 12) - 1);
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outb((page & 0x3f) | host->card.page_reg, host->card.io_page);
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writeb((page & 0x3f) | host->card.page_reg, host->fast + PAGE_REG);
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while (len > 0) {
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unsigned int this_len;
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@ -971,7 +976,7 @@ void acornscsi_data_write(AS_Host *host, char *ptr,
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else
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this_len = len;
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__acornscsi_out(host->card.io_ram + (offset << 1), ptr, this_len);
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__acornscsi_out(host->base + (offset << 1), ptr, this_len);
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offset += this_len;
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ptr += this_len;
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@ -980,10 +985,10 @@ void acornscsi_data_write(AS_Host *host, char *ptr,
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if (offset == (1 << 12)) {
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offset = 0;
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page ++;
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outb((page & 0x3f) | host->card.page_reg, host->card.io_page);
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writeb((page & 0x3f) | host->card.page_reg, host->fast + PAGE_REG);
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}
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}
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outb(host->card.page_reg, host->card.io_page);
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writeb(host->card.page_reg, host->fast + PAGE_REG);
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}
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/* =========================================================================================
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@ -2468,11 +2473,11 @@ acornscsi_intr(int irq, void *dev_id)
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do {
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ret = INTR_IDLE;
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iostatus = inb(host->card.io_intr);
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iostatus = readb(host->fast + INT_REG);
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if (iostatus & 2) {
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acornscsi_dma_intr(host);
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iostatus = inb(host->card.io_intr);
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iostatus = readb(host->fast + INT_REG);
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}
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if (iostatus & 8)
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@ -2858,11 +2863,11 @@ int acornscsi_proc_info(struct Scsi_Host *instance, char *buffer, char **start,
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#endif
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"\n\n", VER_MAJOR, VER_MINOR, VER_PATCH);
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p += sprintf(p, "SBIC: WD33C93A Address: %08X IRQ : %d\n",
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host->scsi.io_port, host->scsi.irq);
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p += sprintf(p, "SBIC: WD33C93A Address: %p IRQ : %d\n",
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host->base + SBIC_REGIDX, host->scsi.irq);
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#ifdef USE_DMAC
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p += sprintf(p, "DMAC: uPC71071 Address: %08X IRQ : %d\n\n",
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host->dma.io_port, host->scsi.irq);
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p += sprintf(p, "DMAC: uPC71071 Address: %p IRQ : %d\n\n",
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host->base + DMAC_OFFSET, host->scsi.irq);
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#endif
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p += sprintf(p, "Statistics:\n"
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@ -2964,48 +2969,37 @@ acornscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
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{
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struct Scsi_Host *host;
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AS_Host *ashost;
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int ret = -ENOMEM;
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int ret;
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ret = ecard_request_resources(ec);
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if (ret)
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goto out;
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host = scsi_host_alloc(&acornscsi_template, sizeof(AS_Host));
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if (!host)
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goto out;
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if (!host) {
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ret = -ENOMEM;
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goto out_release;
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}
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ashost = (AS_Host *)host->hostdata;
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host->io_port = ecard_address(ec, ECARD_MEMC, 0);
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ashost->base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
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ashost->fast = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
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if (!ashost->base || !ashost->fast)
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goto out_put;
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host->irq = ec->irq;
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ashost->host = host;
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ashost->scsi.irq = host->irq;
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ashost->host = host;
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ashost->scsi.io_port = ioaddr(host->io_port + 0x800);
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ashost->scsi.irq = host->irq;
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ashost->card.io_intr = POD_SPACE(host->io_port) + 0x800;
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ashost->card.io_page = POD_SPACE(host->io_port) + 0xc00;
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ashost->card.io_ram = ioaddr(host->io_port);
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ashost->dma.io_port = host->io_port + 0xc00;
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ashost->dma.io_intr_clear = POD_SPACE(host->io_port) + 0x800;
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ec->irqaddr = (char *)ioaddr(ashost->card.io_intr);
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ec->irqaddr = ashost->fast + INT_REG;
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ec->irqmask = 0x0a;
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ret = -EBUSY;
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if (!request_region(host->io_port + 0x800, 2, "acornscsi(sbic)"))
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goto err_1;
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if (!request_region(ashost->card.io_intr, 1, "acornscsi(intr)"))
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goto err_2;
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if (!request_region(ashost->card.io_page, 1, "acornscsi(page)"))
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goto err_3;
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#ifdef USE_DMAC
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if (!request_region(ashost->dma.io_port, 256, "acornscsi(dmac)"))
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goto err_4;
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#endif
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if (!request_region(host->io_port, 2048, "acornscsi(ram)"))
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goto err_5;
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ret = request_irq(host->irq, acornscsi_intr, IRQF_DISABLED, "acornscsi", ashost);
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if (ret) {
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printk(KERN_CRIT "scsi%d: IRQ%d not free: %d\n",
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host->host_no, ashost->scsi.irq, ret);
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goto err_6;
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goto out_put;
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}
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memset(&ashost->stats, 0, sizeof (ashost->stats));
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@ -3017,27 +3011,22 @@ acornscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
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ret = scsi_add_host(host, &ec->dev);
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if (ret)
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goto err_7;
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goto out_irq;
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scsi_scan_host(host);
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goto out;
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err_7:
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out_irq:
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free_irq(host->irq, ashost);
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err_6:
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release_region(host->io_port, 2048);
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err_5:
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#ifdef USE_DMAC
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release_region(ashost->dma.io_port, 256);
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#endif
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err_4:
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release_region(ashost->card.io_page, 1);
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err_3:
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release_region(ashost->card.io_intr, 1);
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err_2:
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release_region(host->io_port + 0x800, 2);
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err_1:
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msgqueue_free(&ashost->scsi.msgs);
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queue_free(&ashost->queues.disconnected);
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queue_free(&ashost->queues.issue);
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out_put:
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ecardm_iounmap(ec, ashost->fast);
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ecardm_iounmap(ec, ashost->base);
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scsi_host_put(host);
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out_release:
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ecard_release_resources(ec);
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out:
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return ret;
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}
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@ -3053,20 +3042,17 @@ static void __devexit acornscsi_remove(struct expansion_card *ec)
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/*
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* Put card into RESET state
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*/
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outb(0x80, ashost->card.io_page);
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writeb(0x80, ashost->fast + PAGE_REG);
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free_irq(host->irq, ashost);
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release_region(host->io_port + 0x800, 2);
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release_region(ashost->card.io_intr, 1);
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release_region(ashost->card.io_page, 1);
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release_region(ashost->dma.io_port, 256);
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release_region(host->io_port, 2048);
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msgqueue_free(&ashost->scsi.msgs);
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queue_free(&ashost->queues.disconnected);
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queue_free(&ashost->queues.issue);
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ecardm_iounmap(ec, ashost->fast);
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ecardm_iounmap(ec, ashost->base);
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scsi_host_put(host);
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ecard_release_resources(ec);
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}
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static const struct ecard_id acornscsi_cids[] = {
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@ -179,7 +179,6 @@
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/* miscellaneous internal variables */
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#define POD_SPACE(x) ((x) + 0xd0000)
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#define MASK_ON (MASKREG_M3|MASKREG_M2|MASKREG_M1|MASKREG_M0)
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#define MASK_OFF (MASKREG_M3|MASKREG_M2|MASKREG_M1)
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@ -279,10 +278,11 @@ typedef struct acornscsi_hostdata {
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struct Scsi_Host *host; /* host */
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struct scsi_cmnd *SCpnt; /* currently processing command */
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struct scsi_cmnd *origSCpnt; /* original connecting command */
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void __iomem *base; /* memc base address */
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void __iomem *fast; /* fast ioc base address */
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/* driver information */
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struct {
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unsigned int io_port; /* base address of WD33C93 */
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unsigned int irq; /* interrupt */
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phase_t phase; /* current phase */
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@ -329,8 +329,6 @@ typedef struct acornscsi_hostdata {
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/* DMA info */
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struct {
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unsigned int io_port; /* base address of DMA controller */
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unsigned int io_intr_clear; /* address of DMA interrupt clear */
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unsigned int free_addr; /* next free address */
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unsigned int start_addr; /* start address of current transfer */
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dmadir_t direction; /* dma direction */
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@ -345,9 +343,6 @@ typedef struct acornscsi_hostdata {
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/* card info */
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struct {
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unsigned int io_intr; /* base address of interrupt id reg */
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unsigned int io_page; /* base address of page reg */
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unsigned int io_ram; /* base address of RAM access */
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unsigned char page_reg; /* current setting of page reg */
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} card;
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