pata_pcmcia: Add support for dumb 8bit IDE emulations
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c
index fd36099..bbd4d70 100644
--- a/drivers/ata/pata_pcmcia.c
+++ b/drivers/ata/pata_pcmcia.c
@@ -86,6 +86,44 @@
return ata_do_set_mode(link, r_failed_dev);
}
+/**
+ * pcmcia_set_mode_8bit - PCMCIA specific mode setup
+ * @link: link
+ * @r_failed_dev: Return pointer for failed device
+ *
+ * For the simple emulated 8bit stuff the less we do the better.
+ */
+
+static int pcmcia_set_mode_8bit(struct ata_link *link,
+ struct ata_device **r_failed_dev)
+{
+ return 0;
+}
+
+/**
+ * ata_data_xfer_8bit - Transfer data by 8bit PIO
+ * @adev: device to target
+ * @buf: data buffer
+ * @buflen: buffer length
+ * @write_data: read/write
+ *
+ * Transfer data from/to the device data register by 8 bit PIO.
+ *
+ * LOCKING:
+ * Inherited from caller.
+ */
+
+static void ata_data_xfer_8bit(struct ata_device *adev, unsigned char *buf,
+ unsigned int buflen, int write_data)
+{
+ struct ata_port *ap = adev->link->ap;
+ if (write_data)
+ iowrite8_rep(ap->ioaddr.data_addr, buf, buflen);
+ else
+ ioread8_rep(ap->ioaddr.data_addr, buf, buflen);
+}
+
+
static struct scsi_host_template pcmcia_sht = {
.module = THIS_MODULE,
.name = DRV_NAME,
@@ -129,12 +167,38 @@
.port_start = ata_sff_port_start,
};
+static struct ata_port_operations pcmcia_8bit_port_ops = {
+ .set_mode = pcmcia_set_mode_8bit,
+ .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 = ata_bmdma_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+ .cable_detect = ata_cable_40wire,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+
+ .data_xfer = ata_data_xfer_8bit,
+
+ .irq_clear = ata_bmdma_irq_clear,
+ .irq_on = ata_irq_on,
+
+ .port_start = ata_sff_port_start,
+};
+
#define CS_CHECK(fn, ret) \
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
/**
* pcmcia_init_one - attach a PCMCIA interface
* @pdev: pcmcia device
+ * @ops: operations for this device
*
* Register a PCMCIA IDE interface. Such interfaces are PIO 0 and
* shared IRQ.
@@ -157,6 +221,8 @@
unsigned long io_base, ctl_base;
void __iomem *io_addr, *ctl_addr;
+ struct ata_port_operations *ops = &pcmcia_port_ops;
+
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (info == NULL)
return -ENOMEM;
@@ -284,6 +350,8 @@
if (pdev->io.NumPorts1 >= 0x20)
printk(KERN_WARNING DRV_NAME ": second channel not yet supported.\n");
+ if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620)
+ ops = &pcmcia_8bit_port_ops;
/*
* Having done the PCMCIA plumbing the ATA side is relatively
* sane.
@@ -294,7 +362,7 @@
goto failed;
ap = host->ports[0];
- ap->ops = &pcmcia_port_ops;
+ ap->ops = ops;
ap->pio_mask = 1; /* ISA so PIO 0 cycles */
ap->flags |= ATA_FLAG_SLAVE_POSS;
ap->ioaddr.cmd_addr = io_addr;
@@ -360,6 +428,7 @@
PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),
PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */
+ PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */
PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */
PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */