diff options
| -rw-r--r-- | drivers/scsi/gdth.c | 296 |
1 files changed, 162 insertions, 134 deletions
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c index fe5db2da26b..add2ebbc293 100644 --- a/drivers/scsi/gdth.c +++ b/drivers/scsi/gdth.c @@ -445,13 +445,11 @@ static int gdth_internal_cache_cmd(int hanum,Scsi_Cmnd *scp); static int gdth_fill_cache_cmd(int hanum,Scsi_Cmnd *scp,ushort hdrive); static int gdth_search_eisa(ushort eisa_adr); -static int gdth_search_isa(ulong32 bios_adr); static int gdth_search_pci(gdth_pci_str *pcistr); static void gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt, ushort vendor, ushort dev); static void gdth_sort_pci(gdth_pci_str *pcistr, int cnt); static int gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha); -static int gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha); static int gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha); static void gdth_enable_int(int hanum); @@ -476,6 +474,9 @@ static void gdth_flush(int hanum); static int gdth_halt(struct notifier_block *nb, ulong event, void *buf); static int gdth_queuecommand(Scsi_Cmnd *scp,void (*done)(Scsi_Cmnd *)); static void gdth_scsi_done(struct scsi_cmnd *scp); +#ifdef CONFIG_ISA +static int gdth_isa_probe_one(struct scsi_host_template *, ulong32); +#endif #ifdef DEBUG_GDTH static unchar DebugState = DEBUG_GDTH; @@ -584,7 +585,10 @@ static struct timer_list gdth_timer; #define gdth_writew(b,addr) writew((b),(addr)) #define gdth_writel(b,addr) writel((b),(addr)) +#ifdef CONFIG_ISA static unchar gdth_drq_tab[4] = {5,6,7,7}; /* DRQ table */ +#endif + static unchar gdth_irq_tab[6] = {0,10,11,12,14,0}; /* IRQ table */ static unchar gdth_polling; /* polling if TRUE */ static unchar gdth_from_wait = FALSE; /* gdth_wait() */ @@ -838,7 +842,7 @@ static int __init gdth_search_eisa(ushort eisa_adr) return 0; } - +#ifdef CONFIG_ISA static int __init gdth_search_isa(ulong32 bios_adr) { void __iomem *addr; @@ -853,7 +857,7 @@ static int __init gdth_search_isa(ulong32 bios_adr) } return 0; } - +#endif /* CONFIG_ISA */ static int __init gdth_search_pci(gdth_pci_str *pcistr) { @@ -1064,7 +1068,7 @@ static int __init gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha) return 1; } - +#ifdef CONFIG_ISA static int __init gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha) { register gdt2_dpram_str __iomem *dp2_ptr; @@ -1163,7 +1167,7 @@ static int __init gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha) ha->dma64_support = 0; return 1; } - +#endif /* CONFIG_ISA */ static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha) { @@ -4282,6 +4286,7 @@ int __init option_setup(char *str) return 1; } + #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) static int __init gdth_detect(struct scsi_host_template *shtp) #else @@ -4291,7 +4296,6 @@ static int __init gdth_detect(Scsi_Host_Template *shtp) struct Scsi_Host *shp; gdth_pci_str pcistr[MAXHA]; gdth_ha_str *ha; - ulong32 isa_bios; ushort eisa_slot; int i,hanum,cnt,ctr,err; unchar b; @@ -4328,135 +4332,16 @@ static int __init gdth_detect(Scsi_Host_Template *shtp) /* As default we do not probe for EISA or ISA controllers */ if (probe_eisa_isa) { /* scanning for controllers, at first: ISA controller */ - for (isa_bios=0xc8000UL; isa_bios<=0xd8000UL; isa_bios+=0x8000UL) { - dma_addr_t scratch_dma_handle; - scratch_dma_handle = 0; - - if (gdth_ctr_count >= MAXHA) +#ifdef CONFIG_ISA + ulong32 isa_bios; + for (isa_bios = 0xc8000UL; isa_bios <= 0xd8000UL; + isa_bios += 0x8000UL) { + if (gdth_ctr_count >= MAXHA) break; - if (gdth_search_isa(isa_bios)) { /* controller found */ - shp = scsi_register(shtp,sizeof(gdth_ext_str)); - if (shp == NULL) - continue; - - ha = HADATA(shp); - if (!gdth_init_isa(isa_bios,ha)) { - scsi_unregister(shp); - continue; - } -#ifdef __ia64__ - break; -#else - /* controller found and initialized */ - printk("Configuring GDT-ISA HA at BIOS 0x%05X IRQ %u DRQ %u\n", - isa_bios,ha->irq,ha->drq); - - if (request_irq(ha->irq,gdth_interrupt,IRQF_DISABLED,"gdth",ha)) { - printk("GDT-ISA: Unable to allocate IRQ\n"); - scsi_unregister(shp); - continue; - } - if (request_dma(ha->drq,"gdth")) { - printk("GDT-ISA: Unable to allocate DMA channel\n"); - free_irq(ha->irq,ha); - scsi_unregister(shp); - continue; - } - set_dma_mode(ha->drq,DMA_MODE_CASCADE); - enable_dma(ha->drq); - shp->unchecked_isa_dma = 1; - shp->irq = ha->irq; - shp->dma_channel = ha->drq; - hanum = gdth_ctr_count; - gdth_ctr_tab[gdth_ctr_count++] = shp; - gdth_ctr_vtab[gdth_ctr_vcount++] = shp; - - NUMDATA(shp)->hanum = (ushort)hanum; - NUMDATA(shp)->busnum= 0; - - ha->pccb = CMDDATA(shp); - ha->ccb_phys = 0L; - ha->pdev = NULL; - ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH, - &scratch_dma_handle); - ha->scratch_phys = scratch_dma_handle; - ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str), - &scratch_dma_handle); - ha->msg_phys = scratch_dma_handle; -#ifdef INT_COAL - ha->coal_stat = (gdth_coal_status *) - pci_alloc_consistent(ha->pdev, sizeof(gdth_coal_status) * - MAXOFFSETS, &scratch_dma_handle); - ha->coal_stat_phys = scratch_dma_handle; -#endif - - ha->scratch_busy = FALSE; - ha->req_first = NULL; - ha->tid_cnt = MAX_HDRIVES; - if (max_ids > 0 && max_ids < ha->tid_cnt) - ha->tid_cnt = max_ids; - for (i=0; i<GDTH_MAXCMDS; ++i) - ha->cmd_tab[i].cmnd = UNUSED_CMND; - ha->scan_mode = rescan ? 0x10 : 0; - - if (ha->pscratch == NULL || ha->pmsg == NULL || - !gdth_search_drives(hanum)) { - printk("GDT-ISA: Error during device scan\n"); - --gdth_ctr_count; - --gdth_ctr_vcount; - -#ifdef INT_COAL - if (ha->coal_stat) - pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * - MAXOFFSETS, ha->coal_stat, - ha->coal_stat_phys); -#endif - if (ha->pscratch) - pci_free_consistent(ha->pdev, GDTH_SCRATCH, - ha->pscratch, ha->scratch_phys); - if (ha->pmsg) - pci_free_consistent(ha->pdev, sizeof(gdth_msg_str), - ha->pmsg, ha->msg_phys); - - free_irq(ha->irq,ha); - scsi_unregister(shp); - continue; - } - if (hdr_channel < 0 || hdr_channel > ha->bus_cnt) - hdr_channel = ha->bus_cnt; - ha->virt_bus = hdr_channel; - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) && \ - LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) - shp->highmem_io = 0; -#endif - if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT) - shp->max_cmd_len = 16; - - shp->max_id = ha->tid_cnt; - shp->max_lun = MAXLUN; - shp->max_channel = virt_ctr ? 0 : ha->bus_cnt; - if (virt_ctr) { - virt_ctr = 1; - /* register addit. SCSI channels as virtual controllers */ - for (b = 1; b < ha->bus_cnt + 1; ++b) { - shp = scsi_register(shtp,sizeof(gdth_num_str)); - shp->unchecked_isa_dma = 1; - shp->irq = ha->irq; - shp->dma_channel = ha->drq; - gdth_ctr_vtab[gdth_ctr_vcount++] = shp; - NUMDATA(shp)->hanum = (ushort)hanum; - NUMDATA(shp)->busnum = b; - } - } - - spin_lock_init(&ha->smp_lock); - gdth_enable_int(hanum); -#endif /* !__ia64__ */ - } + gdth_isa_probe_one(shtp, isa_bios); } +#endif - /* scanning for EISA controllers */ for (eisa_slot=0x1000; eisa_slot<=0x8000; eisa_slot+=0x1000) { dma_addr_t scratch_dma_handle; scratch_dma_handle = 0; @@ -4754,7 +4639,7 @@ static int gdth_release(struct Scsi_Host *shp) if (shp->irq) { free_irq(shp->irq,ha); } -#ifndef __ia64__ +#ifdef CONFIG_ISA if (shp->dma_channel != 0xff) { free_dma(shp->dma_channel); } @@ -5674,6 +5559,149 @@ static Scsi_Host_Template driver_template = { #endif }; +#ifdef CONFIG_ISA +static int gdth_isa_probe_one(struct scsi_host_template *shtp, ulong32 isa_bios) +{ + struct Scsi_Host *shp; + gdth_ha_str *ha; + dma_addr_t scratch_dma_handle = 0; + int error, hanum, i; + u8 b; + + if (!gdth_search_isa(isa_bios)) + return -ENXIO; + + shp = scsi_register(shtp, sizeof(gdth_ext_str)); + if (!shp) + return -ENOMEM; + ha = HADATA(shp); + + error = -ENODEV; + if (!gdth_init_isa(isa_bios,ha)) + goto out_host_put; + + /* controller found and initialized */ + printk("Configuring GDT-ISA HA at BIOS 0x%05X IRQ %u DRQ %u\n", + isa_bios, ha->irq, ha->drq); + + error = request_irq(ha->irq, gdth_interrupt, IRQF_DISABLED, "gdth", ha); + if (error) { + printk("GDT-ISA: Unable to allocate IRQ\n"); + goto out_host_put; + } + + error = request_dma(ha->drq, "gdth"); + if (error) { + printk("GDT-ISA: Unable to allocate DMA channel\n"); + goto out_free_irq; + } + + set_dma_mode(ha->drq,DMA_MODE_CASCADE); + enable_dma(ha->drq); + shp->unchecked_isa_dma = 1; + shp->irq = ha->irq; + shp->dma_channel = ha->drq; + hanum = gdth_ctr_count; + gdth_ctr_tab[gdth_ctr_count++] = shp; + gdth_ctr_vtab[gdth_ctr_vcount++] = shp; + + NUMDATA(shp)->hanum = (ushort)hanum; + NUMDATA(shp)->busnum= 0; + + ha->pccb = CMDDATA(shp); + ha->ccb_phys = 0L; + ha->pdev = NULL; + + error = -ENOMEM; + + ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH, + &scratch_dma_handle); + if (!ha->pscratch) + goto out_dec_counters; + ha->scratch_phys = scratch_dma_handle; + + ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str), + &scratch_dma_handle); + if (!ha->pmsg) + goto out_free_pscratch; + ha->msg_phys = scratch_dma_handle; + +#ifdef INT_COAL + ha->coal_stat = pci_alloc_consistent(ha->pdev, + sizeof(gdth_coal_status) * MAXOFFSETS, + &scratch_dma_handle); + if (!ha->coal_stat) + goto out_free_pmsg; + ha->coal_stat_phys = scratch_dma_handle; +#endif + + ha->scratch_busy = FALSE; + ha->req_first = NULL; + ha->tid_cnt = MAX_HDRIVES; + if (max_ids > 0 && max_ids < ha->tid_cnt) + ha->tid_cnt = max_ids; + for (i = 0; i < GDTH_MAXCMDS; ++i) + ha->cmd_tab[i].cmnd = UNUSED_CMND; + ha->scan_mode = rescan ? 0x10 : 0; + + error = -ENODEV; + if (!gdth_search_drives(hanum)) { + printk("GDT-ISA: Error during device scan\n"); + goto out_free_coal_stat; + } + + if (hdr_channel < 0 || hdr_channel > ha->bus_cnt) + hdr_channel = ha->bus_cnt; + ha->virt_bus = hdr_channel; + + if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT) + shp->max_cmd_len = 16; + + shp->max_id = ha->tid_cnt; + shp->max_lun = MAXLUN; + shp->max_channel = virt_ctr ? 0 : ha->bus_cnt; + if (virt_ctr) { + virt_ctr = 1; + /* register addit. SCSI channels as virtual controllers */ + for (b = 1; b < ha->bus_cnt + 1; ++b) { + shp = scsi_register(shtp,sizeof(gdth_num_str)); + shp->unchecked_isa_dma = 1; + shp->irq = ha->irq; + shp->dma_channel = ha->drq; + gdth_ctr_vtab[gdth_ctr_vcount++] = shp; + NUMDATA(shp)->hanum = (ushort)hanum; + NUMDATA(shp)->busnum = b; + } + } + + spin_lock_init(&ha->smp_lock); + gdth_enable_int(hanum); + + return 0; + + out_free_coal_stat: +#ifdef INT_COAL + pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * MAXOFFSETS, + ha->coal_stat, ha->coal_stat_phys); + out_free_pmsg: +#endif + pci_free_consistent(ha->pdev, sizeof(gdth_msg_str), + ha->pmsg, ha->msg_phys); + out_free_pscratch: + pci_free_consistent(ha->pdev, GDTH_SCRATCH, + ha->pscratch, ha->scratch_phys); + out_dec_counters: + gdth_ctr_count--; + gdth_ctr_vcount--; + out_free_irq: + free_irq(ha->irq, ha); + out_host_put: + scsi_unregister(shp); + return error; +} +#endif /* CONFIG_ISA */ + + #include "scsi_module.c" #ifndef MODULE __setup("gdth=", option_setup); |