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Date: Tue, 30 Jan 2007 21:30:29 +0000
From: Simon Arlott <simon@...ott.org>
To: linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] cxacru: Store all device status information and report
it when atm_proc_read is called.
There is much more (useful) line status information than is output through usbatm, this patch stores the status array and overrides atm_proc_read to output all of it.
This change may affect users polling the /proc/net/atm/cxacru file for line up/down status, however better status information is already provided through INFO level printks.
Signed-off-by: Simon Arlott <simon@...e.lp0.eu>
---
drivers/usb/atm/cxacru.c | 144 ++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 144 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index 1fa0844..1049e34 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -159,6 +159,7 @@ struct cxacru_data {
int line_status;
struct delayed_work poll_work;
+ u32 cxinf_status[CXINF_MAX];
/* contol handles */
struct mutex cm_serialize;
@@ -170,6 +171,146 @@ struct cxacru_data {
struct completion snd_done;
};
+static int cxacru_proc_read(struct usbatm_data *usbatm_instance,
+ struct atm_dev *atm_dev, loff_t * pos, char *page)
+{
+ struct cxacru_data *instance = usbatm_instance->driver_data;
+ u32 *cxinf = instance->cxinf_status;
+ int left = *pos;
+
+ if (!left--)
+ return sprintf(page, "# %s\n", usbatm_instance->description);
+
+ if (!left--) {
+ if (cxinf[CXINF_LINE_STATUS] == 5) {
+ return sprintf(page, "# UP %u/%u\n",
+ cxinf[CXINF_DOWNSTREAM_RATE],
+ cxinf[CXINF_UPSTREAM_RATE]);
+ } else {
+ return sprintf(page, "# DOWN\n");
+ }
+ }
+
+ if (!left--)
+ return sprintf(page, "MAC=%02x:%02x:%02x:%02x:%02x:%02x\n",
+ atm_dev->esi[0], atm_dev->esi[1],
+ atm_dev->esi[2], atm_dev->esi[3],
+ atm_dev->esi[4], atm_dev->esi[5]);
+
+ if (!left--)
+ switch (cxinf[CXINF_LINK_STATUS]) {
+ case 1: return sprintf(page, "LINK_STATUS=\"not connected\"\n");
+ case 2: return sprintf(page, "LINK_STATUS=\"connected\"\n");
+ case 3: return sprintf(page, "LINK_STATUS=\"lost\"\n");
+ default:
+ return sprintf(page, "LINK_STATUS=\"unknown (%u)\"\n",
+ cxinf[CXINF_LINK_STATUS]);
+ }
+
+ if (!left--)
+ switch (cxinf[CXINF_LINE_STATUS]) {
+ case 0: return sprintf(page, "LINE_STATUS=\"down\"\n");
+ case 1: return sprintf(page, "LINE_STATUS=\"attempting to activate\"\n");
+ case 2: return sprintf(page, "LINE_STATUS=\"training\"\n");
+ case 3: return sprintf(page, "LINE_STATUS=\"channel analysis\"\n");
+ case 4: return sprintf(page, "LINE_STATUS=\"exchange\"\n");
+ case 5: return sprintf(page, "LINE_STATUS=\"up\"\n");
+ case 6: return sprintf(page, "LINE_STATUS=\"waiting\"\n");
+ case 7: return sprintf(page, "LINE_STATUS=\"initialising\"\n");
+ default:
+ return sprintf(page, "LINE_STATUS=\"unknown (%u)\"\n",
+ cxinf[CXINF_LINE_STATUS]);
+ }
+
+ if (!left--)
+ return sprintf(page, "\n");
+
+ if (cxinf[CXINF_LINE_STATUS] == 5) /* up */
+ if (!left--)
+ return sprintf(page, "DOWNSTREAM_RATE=%u\n",
+ cxinf[CXINF_DOWNSTREAM_RATE]);
+ if (!left--)
+ return sprintf(page,
+ "DOWNSTREAM_SNR_MARGIN=%d.%02u\n"
+ "DOWNSTREAM_ATTENUATION=%d.%02u\n"
+ "DOWNSTREAM_BITS_PER_FRAME=%u\n"
+ "DOWNSTREAM_CRC_ERRORS=%u\n"
+ "DOWNSTREAM_FEC_ERRORS=%u\n"
+ "DOWNSTREAM_HEC_ERRORS=%u\n"
+ "\n",
+ cxinf[CXINF_DOWNSTREAM_SNR_MARGIN] / 100,
+ cxinf[CXINF_DOWNSTREAM_SNR_MARGIN] % 100,
+ cxinf[CXINF_DOWNSTREAM_ATTENUATION] / 100,
+ cxinf[CXINF_DOWNSTREAM_ATTENUATION] % 100,
+ cxinf[CXINF_DOWNSTREAM_BITS_PER_FRAME],
+ cxinf[CXINF_DOWNSTREAM_CRC_ERRORS],
+ cxinf[CXINF_DOWNSTREAM_FEC_ERRORS],
+ cxinf[CXINF_DOWNSTREAM_HEC_ERRORS]);
+
+ if (cxinf[CXINF_LINE_STATUS] == 5) /* up */
+ if (!left--)
+ return sprintf(page, "UPSTREAM_RATE=%u\n",
+ cxinf[CXINF_UPSTREAM_RATE]);
+ if (!left--)
+ return sprintf(page,
+ "UPSTREAM_SNR_MARGIN=%d.%02u\n"
+ "UPSTREAM_ATTENUATION=%d.%02u\n"
+ "UPSTREAM_BITS_PER_FRAME=%u\n"
+ "UPSTREAM_CRC_ERRORS=%u\n"
+ "UPSTREAM_FEC_ERRORS=%u\n"
+ "UPSTREAM_HEC_ERRORS=%u\n"
+ "TRANSMITTER_POWER=%d\n"
+ "\n",
+ cxinf[CXINF_UPSTREAM_SNR_MARGIN] / 100,
+ cxinf[CXINF_UPSTREAM_SNR_MARGIN] % 100,
+ cxinf[CXINF_UPSTREAM_ATTENUATION] / 100,
+ cxinf[CXINF_UPSTREAM_ATTENUATION] % 100,
+ cxinf[CXINF_UPSTREAM_BITS_PER_FRAME],
+ cxinf[CXINF_UPSTREAM_CRC_ERRORS],
+ cxinf[CXINF_UPSTREAM_FEC_ERRORS],
+ cxinf[CXINF_UPSTREAM_HEC_ERRORS],
+ cxinf[CXINF_TRANSMITTER_POWER] - 256);
+
+ if (!left--)
+ return sprintf(page,
+ "AAL5_TX=%u\n"
+ "AAL5_TX_ERR=%u\n"
+ "AAL5_RX=%u\n"
+ "AAL5_RX_ERR=%u\n"
+ "AAL5_RX_DROP=%u\n"
+ "\n",
+ atomic_read(&atm_dev->stats.aal5.tx),
+ atomic_read(&atm_dev->stats.aal5.tx_err),
+ atomic_read(&atm_dev->stats.aal5.rx),
+ atomic_read(&atm_dev->stats.aal5.rx_err),
+ atomic_read(&atm_dev->stats.aal5.rx_drop));
+
+ if (!left--)
+ return sprintf(page,
+ "ADSL_HEADEND=%u\n"
+ "ADSL_HEADEND_ENVIRONMENT=%u\n"
+ "STARTUP_ATTEMPTS=%u\n"
+ "LINE_STARTABLE=%u\n"
+ "CONTROLLER_VERSION=%u\n",
+ cxinf[CXINF_ADSL_HEADEND],
+ cxinf[CXINF_ADSL_HEADEND_ENVIRONMENT],
+ cxinf[CXINF_STARTUP_ATTEMPTS],
+ cxinf[CXINF_LINE_STARTABLE],
+ cxinf[CXINF_CONTROLLER_VERSION]);
+
+ if (!left--)
+ switch (cxinf[CXINF_MODULATION]) {
+ case 1: return sprintf(page, "MODULATION=\"ANSI T1.413\"\n");
+ case 2: return sprintf(page, "MODULATION=\"ITU-T G.992.1 (G.DMT)\"\n");
+ case 3: return sprintf(page, "MODULATION=\"ITU-T G.992.2 (G.LITE)\"\n");
+ default:
+ return sprintf(page, "MODULATION=\"unknown (%u)\"\n",
+ cxinf[CXINF_MODULATION]);
+ }
+
+ return 0;
+}
+
/* the following three functions are stolen from drivers/usb/core/message.c */
static void cxacru_blocking_completion(struct urb *urb)
{
@@ -395,6 +536,8 @@ static void cxacru_poll_status(struct wo
goto reschedule;
}
+ memcpy(instance->cxinf_status, buf, sizeof(instance->cxinf_status));
+
if (instance->line_status == buf[CXINF_LINE_STATUS])
goto reschedule;
@@ -842,6 +985,7 @@ static struct usbatm_driver cxacru_drive
.heavy_init = cxacru_heavy_init,
.unbind = cxacru_unbind,
.atm_start = cxacru_atm_start,
+ .proc_read = cxacru_proc_read,
.bulk_in = CXACRU_EP_DATA,
.bulk_out = CXACRU_EP_DATA,
.rx_padding = 3,
--
1.4.3.1
--
Simon Arlott (subscribed to lkml, don't CC)
-
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