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authorEvan Ko <evan_ko@phison.com>2009-02-09 13:02:35 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2009-04-03 14:53:40 -0700
commitcfc2f947f849d75dfb1bff780dfee023c2e5a390 (patch)
tree949377ea712b5bd2be8dab78552a53253b59724d /drivers/staging/phison/phison.c
parentecf474516696c7eb6c2f6bb8dafcf86ebca62713 (diff)
Staging: add phison ATA driver to the tree
It doesn't build properly yet as it is against an older kernel version. That will be fixed up in patches following this. From: Evan Ko <evan_ko@phison.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/phison/phison.c')
-rw-r--r--drivers/staging/phison/phison.c227
1 files changed, 227 insertions, 0 deletions
diff --git a/drivers/staging/phison/phison.c b/drivers/staging/phison/phison.c
new file mode 100644
index 00000000000..571d03df8d6
--- /dev/null
+++ b/drivers/staging/phison/phison.c
@@ -0,0 +1,227 @@
+/*
+ * Copyright (C) 2006 Red Hat <evan_ko@phison.com>
+ *
+ * May be copied or modified under the terms of the GNU General Public License
+ *
+ * [Modify History]
+ * #0001, Evan, 2008.10.22, V0.00, New release.
+ * #0002, Evan, 2008.11.01, V0.90, Test Work In Ubuntu Linux 8.04.
+ * #0003, Evan, 2008.01.08, V0.91, Change Name "PCIE-SSD" to "E-BOX".
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+#include <linux/ata.h>
+
+#define PHISON_DEBUG
+
+#define DRV_NAME "PHISON E-BOX" //#0003
+#define DRV_VERSION "0.91" //#0003
+
+#define PCI_VENDOR_ID_PHISON 0x1987
+#define PCI_DEVICE_ID_PS5000 0x5000
+
+int phison_pre_reset(struct ata_link *link, unsigned long deadline)
+{
+ int ret;
+ struct ata_port *ap = link->ap;
+ ap->cbl = ATA_CBL_NONE;
+ ret = ata_std_prereset(link, deadline);
+ #ifdef PHISON_DEBUG
+ printk("****** phison_pre_reset(), ret = %x ******\n", ret);
+ #endif
+ return ret;
+}
+
+void phison_error_handler(struct ata_port *ap)
+{
+ #ifdef PHISON_DEBUG
+ printk("****** phison_error_handler() ******\n");
+ #endif
+ return ata_bmdma_drive_eh(ap, phison_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
+}
+
+struct scsi_host_template phison_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ATA_DMA_BOUNDARY,
+ .slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
+ /* Use standard CHS mapping rules */
+ .bios_param = ata_std_bios_param,
+};
+
+const struct ata_port_operations phison_ops = {
+ /* Task file is PCI ATA format, use helpers */
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = phison_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ /* BMDMA handling is PCI ATA format, use helpers */
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .data_xfer = ata_data_xfer,
+
+ /* IRQ-related hooks */
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+ .irq_on = ata_irq_on,
+
+ /* Generic PATA PCI ATA helpers */
+ .port_start = ata_port_start,
+};
+
+int phison_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ struct ata_port_info info = {
+ .sht = &phison_sht,
+ .flags = ATA_FLAG_NO_ATAPI,
+
+ .pio_mask = 0x1f,
+ .mwdma_mask = 0x07,
+ .udma_mask = ATA_UDMA5,
+
+ .port_ops = &phison_ops,
+ };
+ int ret;
+
+ const struct ata_port_info *ppi[] = { &info, NULL };
+
+ ret = ata_pci_init_one(pdev, ppi);
+
+ #ifdef PHISON_DEBUG
+ printk("****** phison_init_one(), ret = %x ******\n", ret);
+ #endif
+
+ return ret;
+
+}
+
+struct pci_device_id phison_pci_tbl[] = {
+ { PCI_VENDOR_ID_PHISON, PCI_DEVICE_ID_PS5000, PCI_ANY_ID, PCI_ANY_ID,
+ PCI_CLASS_STORAGE_IDE << 8, 0xffff00, 0 },
+ { 0, },
+};
+
+MODULE_DEVICE_TABLE(pci, phison_pci_tbl);
+
+struct pci_driver phison_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = phison_pci_tbl,
+ .probe = phison_init_one,
+ .remove = ata_pci_remove_one,
+#ifdef CONFIG_PM //haven't test it.
+ .suspend = ata_pci_device_suspend,
+ .resume = ata_pci_device_resume,
+#endif
+};
+
+int phison_ide_init(void)
+{
+#if 0 //For Test.
+ struct pci_dev *pci_dev = NULL;
+ struct pci_dev *ps5k_dev = NULL;
+ int i, ret;
+ u16 vid, pid;
+ u32 addr1,addr2,addr3, addr4,addr5,addr6;
+
+ printk("****** phison_ide_init ******\n");
+
+ i = 0;
+
+ while(1)
+ {
+ pci_dev = pci_find_device(PCI_ANY_ID,PCI_ANY_ID, pci_dev);
+
+ if(pci_dev!=NULL)
+ {
+ pci_read_config_word(pci_dev, 0, &pid);
+ pci_read_config_word(pci_dev, 2, &vid);
+ pci_read_config_dword(pci_dev, 16, &addr1);
+ pci_read_config_dword(pci_dev, 16, &addr1);
+ pci_read_config_dword(pci_dev, 16, &addr1);
+ pci_read_config_dword(pci_dev, 16, &addr1);
+ pci_read_config_dword(pci_dev, 20, &addr2);
+ pci_read_config_dword(pci_dev, 24, &addr3);
+ pci_read_config_dword(pci_dev, 28, &addr4);
+ pci_read_config_dword(pci_dev, 32, &addr5);
+ pci_read_config_dword(pci_dev, 36, &addr6);
+
+ printk("****** <0x%02x>, %x, %x, %x,%x,%x,%x,%x,%x ******\n", i, pid, vid, addr1, addr2, addr3, addr4,addr5,addr6);
+ i++;
+
+ if((pid==PCI_VENDOR_ID_PHISON)&&(vid==PCI_DEVICE_ID_PS5000)) ps5k_dev = pci_dev;
+ }
+ else
+ {
+ if(i==0) printk("****** no pci device found ******\n");
+ break;
+ }
+ }
+
+ if(ps5k_dev!=NULL)
+ {
+ ret = pci_register_driver(&phison_pci_driver);
+ printk("****** PS5000 found, Ret = %x ******\n", ret);
+ return true;
+ }
+
+ printk("****** PS5000 not found ******\n");
+ return false;
+#else
+ int ret;
+
+ ret = pci_register_driver(&phison_pci_driver);
+
+ #ifdef PHISON_DEBUG
+ printk("****** phison_ide_init(), ret = %x ******\n", ret);
+ #endif
+
+ return ret;
+#endif
+
+
+}
+
+void phison_ide_exit(void)
+{
+ #ifdef PHISON_DEBUG
+ printk("****** phison_ide_exit() ******\n");
+ #endif
+ pci_unregister_driver(&phison_pci_driver);
+}
+
+module_init(phison_ide_init);
+module_exit(phison_ide_exit);
+
+MODULE_AUTHOR("Evan Ko");
+MODULE_DESCRIPTION("PCIE driver module for PHISON PS5000 E-BOX");//#0003
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);