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path: root/drivers/net/wireless/hermes.c
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Diffstat (limited to 'drivers/net/wireless/hermes.c')
-rw-r--r--drivers/net/wireless/hermes.c124
1 files changed, 71 insertions, 53 deletions
diff --git a/drivers/net/wireless/hermes.c b/drivers/net/wireless/hermes.c
index 29d39105f5b8..bfa375369df3 100644
--- a/drivers/net/wireless/hermes.c
+++ b/drivers/net/wireless/hermes.c
@@ -87,7 +87,8 @@ MODULE_LICENSE("Dual MPL/GPL");
Callable from any context.
*/
-static int hermes_issue_cmd(hermes_t *hw, u16 cmd, u16 param0)
+static int hermes_issue_cmd(hermes_t *hw, u16 cmd, u16 param0,
+ u16 param1, u16 param2)
{
int k = CMD_BUSY_TIMEOUT;
u16 reg;
@@ -103,8 +104,8 @@ static int hermes_issue_cmd(hermes_t *hw, u16 cmd, u16 param0)
return -EBUSY;
}
- hermes_write_regn(hw, PARAM2, 0);
- hermes_write_regn(hw, PARAM1, 0);
+ hermes_write_regn(hw, PARAM2, param2);
+ hermes_write_regn(hw, PARAM1, param1);
hermes_write_regn(hw, PARAM0, param0);
hermes_write_regn(hw, CMD, cmd);
@@ -115,16 +116,72 @@ static int hermes_issue_cmd(hermes_t *hw, u16 cmd, u16 param0)
* Function definitions
*/
+/* For doing cmds that wipe the magic constant in SWSUPPORT0 */
+int hermes_doicmd_wait(hermes_t *hw, u16 cmd,
+ u16 parm0, u16 parm1, u16 parm2,
+ struct hermes_response *resp)
+{
+ int err = 0;
+ int k;
+ u16 status, reg;
+
+ err = hermes_issue_cmd(hw, cmd, parm0, parm1, parm2);
+ if (err)
+ return err;
+
+ reg = hermes_read_regn(hw, EVSTAT);
+ k = CMD_INIT_TIMEOUT;
+ while ((!(reg & HERMES_EV_CMD)) && k) {
+ k--;
+ udelay(10);
+ reg = hermes_read_regn(hw, EVSTAT);
+ }
+
+ hermes_write_regn(hw, SWSUPPORT0, HERMES_MAGIC);
+
+ if (!hermes_present(hw)) {
+ DEBUG(0, "hermes @ 0x%x: Card removed during reset.\n",
+ hw->iobase);
+ err = -ENODEV;
+ goto out;
+ }
+
+ if (!(reg & HERMES_EV_CMD)) {
+ printk(KERN_ERR "hermes @ %p: "
+ "Timeout waiting for card to reset (reg=0x%04x)!\n",
+ hw->iobase, reg);
+ err = -ETIMEDOUT;
+ goto out;
+ }
+
+ status = hermes_read_regn(hw, STATUS);
+ if (resp) {
+ resp->status = status;
+ resp->resp0 = hermes_read_regn(hw, RESP0);
+ resp->resp1 = hermes_read_regn(hw, RESP1);
+ resp->resp2 = hermes_read_regn(hw, RESP2);
+ }
+
+ hermes_write_regn(hw, EVACK, HERMES_EV_CMD);
+
+ if (status & HERMES_STATUS_RESULT)
+ err = -EIO;
+out:
+ return err;
+}
+EXPORT_SYMBOL(hermes_doicmd_wait);
+
void hermes_struct_init(hermes_t *hw, void __iomem *address, int reg_spacing)
{
hw->iobase = address;
hw->reg_spacing = reg_spacing;
hw->inten = 0x0;
}
+EXPORT_SYMBOL(hermes_struct_init);
int hermes_init(hermes_t *hw)
{
- u16 status, reg;
+ u16 reg;
int err = 0;
int k;
@@ -162,45 +219,11 @@ int hermes_init(hermes_t *hw)
/* We don't use hermes_docmd_wait here, because the reset wipes
the magic constant in SWSUPPORT0 away, and it gets confused */
- err = hermes_issue_cmd(hw, HERMES_CMD_INIT, 0);
- if (err)
- return err;
-
- reg = hermes_read_regn(hw, EVSTAT);
- k = CMD_INIT_TIMEOUT;
- while ( (! (reg & HERMES_EV_CMD)) && k) {
- k--;
- udelay(10);
- reg = hermes_read_regn(hw, EVSTAT);
- }
-
- hermes_write_regn(hw, SWSUPPORT0, HERMES_MAGIC);
-
- if (! hermes_present(hw)) {
- DEBUG(0, "hermes @ 0x%x: Card removed during reset.\n",
- hw->iobase);
- err = -ENODEV;
- goto out;
- }
-
- if (! (reg & HERMES_EV_CMD)) {
- printk(KERN_ERR "hermes @ %p: "
- "Timeout waiting for card to reset (reg=0x%04x)!\n",
- hw->iobase, reg);
- err = -ETIMEDOUT;
- goto out;
- }
+ err = hermes_doicmd_wait(hw, HERMES_CMD_INIT, 0, 0, 0, NULL);
- status = hermes_read_regn(hw, STATUS);
-
- hermes_write_regn(hw, EVACK, HERMES_EV_CMD);
-
- if (status & HERMES_STATUS_RESULT)
- err = -EIO;
-
- out:
return err;
}
+EXPORT_SYMBOL(hermes_init);
/* Issue a command to the chip, and (busy!) wait for it to
* complete.
@@ -216,7 +239,7 @@ int hermes_docmd_wait(hermes_t *hw, u16 cmd, u16 parm0,
u16 reg;
u16 status;
- err = hermes_issue_cmd(hw, cmd, parm0);
+ err = hermes_issue_cmd(hw, cmd, parm0, 0, 0);
if (err) {
if (! hermes_present(hw)) {
if (net_ratelimit())
@@ -271,6 +294,7 @@ int hermes_docmd_wait(hermes_t *hw, u16 cmd, u16 parm0,
out:
return err;
}
+EXPORT_SYMBOL(hermes_docmd_wait);
int hermes_allocate(hermes_t *hw, u16 size, u16 *fid)
{
@@ -313,7 +337,7 @@ int hermes_allocate(hermes_t *hw, u16 size, u16 *fid)
return 0;
}
-
+EXPORT_SYMBOL(hermes_allocate);
/* Set up a BAP to read a particular chunk of data from card's internal buffer.
*
@@ -397,6 +421,7 @@ int hermes_bap_pread(hermes_t *hw, int bap, void *buf, int len,
out:
return err;
}
+EXPORT_SYMBOL(hermes_bap_pread);
/* Write a block of data to the chip's buffer, via the
* BAP. Synchronization/serialization is the caller's problem.
@@ -422,6 +447,7 @@ int hermes_bap_pwrite(hermes_t *hw, int bap, const void *buf, int len,
out:
return err;
}
+EXPORT_SYMBOL(hermes_bap_pwrite);
/* Read a Length-Type-Value record from the card.
*
@@ -463,7 +489,7 @@ int hermes_read_ltv(hermes_t *hw, int bap, u16 rid, unsigned bufsize,
if (rtype != rid)
printk(KERN_WARNING "hermes @ %p: %s(): "
"rid (0x%04x) does not match type (0x%04x)\n",
- hw->iobase, __FUNCTION__, rid, rtype);
+ hw->iobase, __func__, rid, rtype);
if (HERMES_RECLEN_TO_BYTES(rlength) > bufsize)
printk(KERN_WARNING "hermes @ %p: "
"Truncating LTV record from %d to %d bytes. "
@@ -475,6 +501,7 @@ int hermes_read_ltv(hermes_t *hw, int bap, u16 rid, unsigned bufsize,
return 0;
}
+EXPORT_SYMBOL(hermes_read_ltv);
int hermes_write_ltv(hermes_t *hw, int bap, u16 rid,
u16 length, const void *value)
@@ -497,20 +524,11 @@ int hermes_write_ltv(hermes_t *hw, int bap, u16 rid,
hermes_write_bytes(hw, dreg, value, count << 1);
- err = hermes_docmd_wait(hw, HERMES_CMD_ACCESS | HERMES_CMD_WRITE,
+ err = hermes_docmd_wait(hw, HERMES_CMD_ACCESS | HERMES_CMD_WRITE,
rid, NULL);
return err;
}
-
-EXPORT_SYMBOL(hermes_struct_init);
-EXPORT_SYMBOL(hermes_init);
-EXPORT_SYMBOL(hermes_docmd_wait);
-EXPORT_SYMBOL(hermes_allocate);
-
-EXPORT_SYMBOL(hermes_bap_pread);
-EXPORT_SYMBOL(hermes_bap_pwrite);
-EXPORT_SYMBOL(hermes_read_ltv);
EXPORT_SYMBOL(hermes_write_ltv);
static int __init init_hermes(void)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.