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authorUlrich Kunitz <kune@deine-taler.de>2006-09-13 02:42:38 +0100
committerJohn W. Linville <linville@tuxdriver.com>2006-09-25 16:52:17 -0400
commit583afd1e4f25c87000c85ad7d03f5299fd4155dc (patch)
treee5ceeee697091a1b9a654ae3e6411cd4674a47c2 /drivers/net/wireless/zd1211rw/zd_chip.c
parentbc5f06a8aaa29a79c9da2cedb5b9779b8081289c (diff)
[PATCH] zd1211rw: Add LED support
This patch includes a big cleanup of the existing unused LED code, and adds support for controlling the LED. The link LED will blink if the device is not associated. The LED switches between 2 seconds on and 1 second off. If the device is associated the LED is switched on. The link LED also indicates packet TX. I do a little bit more led resetting than the vendor driver, but the device works now as expected for single LED and double LED devices. Signed-off-by: Ulrich Kunitz <kune@deine-taler.de> Signed-off-by: Daniel Drake <dsd@gentoo.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/zd1211rw/zd_chip.c')
-rw-r--r--drivers/net/wireless/zd1211rw/zd_chip.c117
1 files changed, 48 insertions, 69 deletions
diff --git a/drivers/net/wireless/zd1211rw/zd_chip.c b/drivers/net/wireless/zd1211rw/zd_chip.c
index c213a2e56e5..aa661b2b76c 100644
--- a/drivers/net/wireless/zd1211rw/zd_chip.c
+++ b/drivers/net/wireless/zd1211rw/zd_chip.c
@@ -325,13 +325,22 @@ static int read_pod(struct zd_chip *chip, u8 *rf_type)
chip->patch_cr157 = (value >> 13) & 0x1;
chip->patch_6m_band_edge = (value >> 21) & 0x1;
chip->new_phy_layout = (value >> 31) & 0x1;
+ chip->link_led = ((value >> 4) & 1) ? LED1 : LED2;
+ chip->supports_tx_led = 1;
+ if (value & (1 << 24)) { /* LED scenario */
+ if (value & (1 << 29))
+ chip->supports_tx_led = 0;
+ }
dev_dbg_f(zd_chip_dev(chip),
"RF %s %#01x PA type %#01x patch CCK %d patch CR157 %d "
- "patch 6M %d new PHY %d\n",
+ "patch 6M %d new PHY %d link LED%d tx led %d\n",
zd_rf_name(*rf_type), *rf_type,
chip->pa_type, chip->patch_cck_gain,
- chip->patch_cr157, chip->patch_6m_band_edge, chip->new_phy_layout);
+ chip->patch_cr157, chip->patch_6m_band_edge,
+ chip->new_phy_layout,
+ chip->link_led == LED1 ? 1 : 2,
+ chip->supports_tx_led);
return 0;
error:
*rf_type = 0;
@@ -1289,89 +1298,60 @@ u8 zd_chip_get_channel(struct zd_chip *chip)
return channel;
}
-static u16 led_mask(int led)
-{
- switch (led) {
- case 1:
- return LED1;
- case 2:
- return LED2;
- default:
- return 0;
- }
-}
-
-static int read_led_reg(struct zd_chip *chip, u16 *status)
-{
- ZD_ASSERT(mutex_is_locked(&chip->mutex));
- return zd_ioread16_locked(chip, status, CR_LED);
-}
-
-static int write_led_reg(struct zd_chip *chip, u16 status)
+int zd_chip_control_leds(struct zd_chip *chip, enum led_status status)
{
- ZD_ASSERT(mutex_is_locked(&chip->mutex));
- return zd_iowrite16_locked(chip, status, CR_LED);
-}
+ static const zd_addr_t a[] = {
+ FW_LINK_STATUS,
+ CR_LED,
+ };
-int zd_chip_led_status(struct zd_chip *chip, int led, enum led_status status)
-{
- int r, ret;
- u16 mask = led_mask(led);
- u16 reg;
+ int r;
+ u16 v[ARRAY_SIZE(a)];
+ struct zd_ioreq16 ioreqs[ARRAY_SIZE(a)] = {
+ [0] = { FW_LINK_STATUS },
+ [1] = { CR_LED },
+ };
+ u16 other_led;
- if (!mask)
- return -EINVAL;
mutex_lock(&chip->mutex);
- r = read_led_reg(chip, &reg);
+ r = zd_ioread16v_locked(chip, v, (const zd_addr_t *)a, ARRAY_SIZE(a));
if (r)
- return r;
+ goto out;
+
+ other_led = chip->link_led == LED1 ? LED2 : LED1;
+
switch (status) {
- case LED_STATUS:
- return (reg & mask) ? LED_ON : LED_OFF;
case LED_OFF:
- reg &= ~mask;
- ret = LED_OFF;
+ ioreqs[0].value = FW_LINK_OFF;
+ ioreqs[1].value = v[1] & ~(LED1|LED2);
break;
- case LED_FLIP:
- reg ^= mask;
- ret = (reg&mask) ? LED_ON : LED_OFF;
+ case LED_SCANNING:
+ ioreqs[0].value = FW_LINK_OFF;
+ ioreqs[1].value = v[1] & ~other_led;
+ if (get_seconds() % 3 == 0) {
+ ioreqs[1].value &= ~chip->link_led;
+ } else {
+ ioreqs[1].value |= chip->link_led;
+ }
break;
- case LED_ON:
- reg |= mask;
- ret = LED_ON;
+ case LED_ASSOCIATED:
+ ioreqs[0].value = FW_LINK_TX;
+ ioreqs[1].value = v[1] & ~other_led;
+ ioreqs[1].value |= chip->link_led;
break;
default:
- return -EINVAL;
- }
- r = write_led_reg(chip, reg);
- if (r) {
- ret = r;
+ r = -EINVAL;
goto out;
}
-out:
- mutex_unlock(&chip->mutex);
- return r;
-}
-int zd_chip_led_flip(struct zd_chip *chip, int led,
- const unsigned int *phases_msecs, unsigned int count)
-{
- int i, r;
- enum led_status status;
-
- r = zd_chip_led_status(chip, led, LED_STATUS);
- if (r)
- return r;
- status = r;
- for (i = 0; i < count; i++) {
- r = zd_chip_led_status(chip, led, LED_FLIP);
- if (r < 0)
+ if (v[0] != ioreqs[0].value || v[1] != ioreqs[1].value) {
+ r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
+ if (r)
goto out;
- msleep(phases_msecs[i]);
}
-
+ r = 0;
out:
- zd_chip_led_status(chip, led, status);
+ mutex_unlock(&chip->mutex);
return r;
}
@@ -1673,4 +1653,3 @@ int zd_rfwritev_cr_locked(struct zd_chip *chip,
return 0;
}
-