summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/aic7xxx/aic7xxx_93cx6.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/aic7xxx/aic7xxx_93cx6.c')
-rw-r--r--drivers/scsi/aic7xxx/aic7xxx_93cx6.c36
1 files changed, 27 insertions, 9 deletions
diff --git a/drivers/scsi/aic7xxx/aic7xxx_93cx6.c b/drivers/scsi/aic7xxx/aic7xxx_93cx6.c
index 468d612..3cb07e1 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_93cx6.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_93cx6.c
@@ -28,9 +28,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
- * $Id: //depot/aic7xxx/aic7xxx/aic7xxx_93cx6.c#17 $
- *
- * $FreeBSD$
+ * $Id: //depot/aic7xxx/aic7xxx/aic7xxx_93cx6.c#19 $
*/
/*
@@ -64,7 +62,6 @@
* is preceded by an initial zero (leading 0, followed by 16-bits, MSB
* first). The clock cycling from low to high initiates the next data
* bit to be sent from the chip.
- *
*/
#ifdef __linux__
@@ -81,14 +78,22 @@
* Right now, we only have to read the SEEPROM. But we make it easier to
* add other 93Cx6 functions.
*/
-static struct seeprom_cmd {
+struct seeprom_cmd {
uint8_t len;
- uint8_t bits[9];
-} seeprom_read = {3, {1, 1, 0}};
+ uint8_t bits[11];
+};
+/* Short opcodes for the c46 */
static struct seeprom_cmd seeprom_ewen = {9, {1, 0, 0, 1, 1, 0, 0, 0, 0}};
static struct seeprom_cmd seeprom_ewds = {9, {1, 0, 0, 0, 0, 0, 0, 0, 0}};
+
+/* Long opcodes for the C56/C66 */
+static struct seeprom_cmd seeprom_long_ewen = {11, {1, 0, 0, 1, 1, 0, 0, 0, 0}};
+static struct seeprom_cmd seeprom_long_ewds = {11, {1, 0, 0, 0, 0, 0, 0, 0, 0}};
+
+/* Common opcodes */
static struct seeprom_cmd seeprom_write = {3, {1, 0, 1}};
+static struct seeprom_cmd seeprom_read = {3, {1, 1, 0}};
/*
* Wait for the SEERDY to go high; about 800 ns.
@@ -222,12 +227,25 @@ int
ahc_write_seeprom(struct seeprom_descriptor *sd, uint16_t *buf,
u_int start_addr, u_int count)
{
+ struct seeprom_cmd *ewen, *ewds;
uint16_t v;
uint8_t temp;
int i, k;
/* Place the chip into write-enable mode */
- send_seeprom_cmd(sd, &seeprom_ewen);
+ if (sd->sd_chip == C46) {
+ ewen = &seeprom_ewen;
+ ewds = &seeprom_ewds;
+ } else if (sd->sd_chip == C56_66) {
+ ewen = &seeprom_long_ewen;
+ ewds = &seeprom_long_ewds;
+ } else {
+ printf("ahc_write_seeprom: unsupported seeprom type %d\n",
+ sd->sd_chip);
+ return (0);
+ }
+
+ send_seeprom_cmd(sd, ewen);
reset_seeprom(sd);
/* Write all requested data out to the seeprom. */
@@ -277,7 +295,7 @@ ahc_write_seeprom(struct seeprom_descriptor *sd, uint16_t *buf,
}
/* Put the chip back into write-protect mode */
- send_seeprom_cmd(sd, &seeprom_ewds);
+ send_seeprom_cmd(sd, ewds);
reset_seeprom(sd);
return (1);
OpenPOWER on IntegriCloud