Hi Amit,

On 06/08/2011 04:46 AM, Amit Mendapara wrote:
> The AT commands listed with AT+CLAC matches with MBM supported devices.
> However, the mbm plugin doesn't work for this devices and the specification is
> also quite different.

The linktop device is most likely another Qualcomm clone, so the closest
driver would be the huawei and not mbm.

> 
> I have also adopted some fixes from huawei plugin to fix MeeGo bug #14784
> 
> Signed-off-by: Amit Mendapara <[email protected]>

We don't use Signed-off-by, please configure your git accordingly.

> ---
>  plugins/linktop.c |  301 ++++++++++++++++++++++++++++++++++++----------------
>  1 files changed, 208 insertions(+), 93 deletions(-)
> 
> diff --git a/plugins/linktop.c b/plugins/linktop.c
> index 953f634..26536d8 100644
> --- a/plugins/linktop.c
> +++ b/plugins/linktop.c
> @@ -26,6 +26,7 @@
>  #include <stdio.h>
>  #include <errno.h>
>  #include <stdlib.h>
> +#include <string.h>
>  
>  #include <glib.h>
>  #include <gatchat.h>
> @@ -42,6 +43,7 @@
>  #include <ofono/message-waiting.h>
>  #include <ofono/netreg.h>
>  #include <ofono/sim.h>
> +#include <ofono/stk.h>

This looks fishy, have you actually tested STK on the linktop devices?
If not, then I'd rather leave this part out right now.

>  #include <ofono/cbs.h>
>  #include <ofono/sms.h>
>  #include <ofono/ussd.h>
> @@ -53,16 +55,21 @@
>  #include <ofono/radio-settings.h>

Same with radio-settings and voicecall.

>  #include <ofono/log.h>
>  
> -#include <drivers/atmodem/vendor.h>
>  #include <drivers/atmodem/atutil.h>
> +#include <drivers/atmodem/vendor.h>
>  
> +static const char *cpin_prefix[] = { "+CPIN:", NULL };
>  static const char *none_prefix[] = { NULL };
>  
>  struct linktop_data {
> -     GAtChat *modem;
> -     GAtChat *control;
> +     GAtChat *modem_port;
> +     GAtChat *data_port;
> +     guint cpin_poll_source;
> +     guint cpin_poll_count;
> +     gboolean have_sim;
>       struct ofono_gprs *gprs;
>       struct ofono_gprs_context *gc;
> +     guint reopen_source;
>  };
>  
>  static int linktop_probe(struct ofono_modem *modem)
> @@ -86,35 +93,86 @@ static void linktop_remove(struct ofono_modem *modem)
>  
>       DBG("%p", modem);
>  
> +     if (data->reopen_source > 0) {
> +             g_source_remove(data->reopen_source);
> +             data->reopen_source = 0;
> +     }
> +
>       ofono_modem_set_data(modem, NULL);
>  
> -     g_at_chat_unref(data->modem);
> -     g_at_chat_unref(data->control);
> +     g_at_chat_unref(data->data_port);
> +     g_at_chat_unref(data->modem_port);
> +
> +     if (data->cpin_poll_source > 0)
> +             g_source_remove(data->cpin_poll_source);
>  
>       g_free(data);
>  }
>  
>  static void linktop_debug(const char *str, void *user_data)
>  {
> -        const char *prefix = user_data;
> +     const char *prefix = user_data;
> +
> +     ofono_info("%s%s", prefix, str);
> +}
> +
> +static gboolean init_simpin_check(gpointer user_data);
> +
> +static void simpin_check(gboolean ok, GAtResult *result, gpointer user_data)
> +{
> +     struct ofono_modem *modem = user_data;
> +     struct linktop_data *data = ofono_modem_get_data(modem);
>  
> -        ofono_info("%s%s", prefix, str);
> +     DBG("");
> +
> +     /* Modem returns an error if SIM is not ready. */
> +     if (!ok && data->cpin_poll_count++ < 5) {
> +             data->cpin_poll_source =
> +                     g_timeout_add_seconds(1, init_simpin_check, modem);
> +             return;
> +     }
> +
> +     data->cpin_poll_count = 0;
> +
> +     /* There is probably no SIM if SIM is not ready after 5 seconds. */
> +     data->have_sim = ok;
> +
> +     ofono_modem_set_powered(modem, TRUE);
>  }
>  
> -static GAtChat *open_device(struct ofono_modem *modem,
> -                             const char *key, char *debug)
> +static gboolean init_simpin_check(gpointer user_data)
> +{
> +     struct ofono_modem *modem = user_data;
> +     struct linktop_data *data = ofono_modem_get_data(modem);
> +
> +     data->cpin_poll_source = 0;
> +
> +     g_at_chat_send(data->modem_port, "AT+CPIN?", cpin_prefix,
> +                     simpin_check, modem, NULL);
> +
> +     return FALSE;
> +}
> +
> +static void cfun_enable(gboolean ok, GAtResult *result, gpointer user_data)

Please name this function cfun_enable_cb, so it is clear that it is in
fact a callback.

> +{
> +     struct ofono_modem *modem = user_data;
> +
> +     DBG("");
> +
> +     if (!ok) {
> +             ofono_modem_set_powered(modem, FALSE);
> +             return;
> +     }
> +
> +     init_simpin_check(modem);
> +}
> +
> +static GAtChat *create_port(const char *device)
>  {
> -     const char *device;
>       GAtSyntax *syntax;
>       GIOChannel *channel;
>       GAtChat *chat;
>  
> -     device = ofono_modem_get_string(modem, key);
> -     if (device == NULL)
> -             return NULL;
> -
> -     DBG("%s %s", key, device);
> -
>       channel = g_at_tty_open(device, NULL);
>       if (channel == NULL)
>               return NULL;
> @@ -127,81 +185,116 @@ static GAtChat *open_device(struct ofono_modem *modem,
>       if (chat == NULL)
>               return NULL;
>  
> -     if (getenv("OFONO_AT_DEBUG"))
> -             g_at_chat_set_debug(chat, linktop_debug, debug);
> -
>       return chat;
>  }
>  
> -static void linktop_disconnect(gpointer user_data)
> +static void linktop_disconnect(gpointer user_data);
> +
> +static gboolean reopen_callback(gpointer user_data)
>  {
>       struct ofono_modem *modem = user_data;
>       struct linktop_data *data = ofono_modem_get_data(modem);
> +     const char *data_dev;
> +
> +     data_dev = ofono_modem_get_string(modem, "DataDevice");
> +     data->data_port = create_port(data_dev);
> +     /* retry once if failed */
> +     if (data->data_port == NULL) {
> +             if (data->reopen_source > 0)
> +                     return FALSE;
> +
> +             data->reopen_source = g_timeout_add_seconds(1,
> +                             reopen_callback, modem);
> +             ofono_debug("opening data port failed, retrying...");
> +             return FALSE;
> +     }
>  
> -     DBG("");
> -
> -     if (data->gc)
> -             ofono_gprs_context_remove(data->gc);
> -
> -     g_at_chat_unref(data->modem);
> -     data->modem = NULL;
> -
> -     data->modem = open_device(modem, "Modem", "Modem: ");
> -     if (data->modem == NULL)
> -             return;
> +     if (getenv("OFONO_AT_DEBUG"))
> +             g_at_chat_set_debug(data->data_port, linktop_debug, "Data: ");
>  
> -     g_at_chat_set_disconnect_function(data->modem,
> +     g_at_chat_set_disconnect_function(data->data_port,
>                                               linktop_disconnect, modem);
>  
>       ofono_info("Reopened GPRS context channel");
>  
> -     data->gc = ofono_gprs_context_create(modem, 0, "atmodem", data->modem);
> -
> -     if (data->gprs && data->gc)
> +     data->gc = ofono_gprs_context_create(modem, 0,
> +                                     "atmodem", data->data_port);
> +     if (data->gprs && data->gc) {
>               ofono_gprs_add_context(data->gprs, data->gc);
> +     }

These braces are not necessary, please remove them

> +
> +     data->reopen_source = 0;
> +
> +     return FALSE;
>  }
>  
> -static void cfun_enable(gboolean ok, GAtResult *result, gpointer user_data)
> +static void linktop_disconnect(gpointer user_data)
>  {
>       struct ofono_modem *modem = user_data;
> +     struct linktop_data *data = ofono_modem_get_data(modem);
>  
> -     DBG("");
> +     DBG("%p, data->gc %p", modem, data->gc);
> +
> +     /* gprs_context has been destructed and needs not reopen */
> +     if (data->gc == NULL)
> +             return
> +     
> +     ofono_gprs_context_remove(data->gc);
>  
> -     ofono_modem_set_powered(modem, ok);
> +     g_at_chat_unref(data->data_port);
> +     data->data_port = NULL;
> +
> +     /* Waiting for the +CGEV: ME DEACT might also work */
> +     if (data->reopen_source > 0)
> +             g_source_remove(data->reopen_source);
> +
> +     data->reopen_source = g_timeout_add_seconds(1, reopen_callback, modem);
>  }
>  
>  static int linktop_enable(struct ofono_modem *modem)
>  {
>       struct linktop_data *data = ofono_modem_get_data(modem);
> +     const char *modem_dev;
> +     const char *data_dev;
>  
>       DBG("%p", modem);
>  
> -     data->modem = open_device(modem, "Modem", "Modem: ");
> -     if (data->modem == NULL)
> -             return -EINVAL;
> +     modem_dev = ofono_modem_get_string(modem, "ModemDevice");
> +     data_dev = ofono_modem_get_string(modem, "DataDevice");
>  
> -     g_at_chat_set_disconnect_function(data->modem,
> -                                             linktop_disconnect, modem);
> +     DBG("%s, %s", modem_dev, data_dev);
> +
> +     if (modem_dev == NULL || data_dev == NULL)
> +             return -EINVAL;
>  
> -     data->control = open_device(modem, "Control", "Control: ");
> -     if (data->control == NULL) {
> -             g_at_chat_unref(data->modem);
> -             data->modem = NULL;
> +     data->modem_port = create_port(modem_dev);
> +     if (data->modem_port == NULL)
>               return -EIO;
> -     }
>  
> -     g_at_chat_send(data->control, "ATE0 +CMEE=1", none_prefix,
> -                                             NULL, NULL, NULL);
> +     if (getenv("OFONO_AT_DEBUG"))
> +             g_at_chat_set_debug(data->modem_port, linktop_debug, "Modem: ");
> +
> +     data->data_port = create_port(data_dev);
> +     if (data->data_port == NULL) {
> +             g_at_chat_unref(data->modem_port);
> +             data->modem_port = NULL;
>  
> -     g_at_chat_send(data->modem, "AT", none_prefix,
> -                                             NULL, NULL, NULL);
> +             return -EIO;
> +     }
>  
> -     g_at_chat_send(data->modem, "AT &F", none_prefix,
> -                                             NULL, NULL, NULL);
> +     if (getenv("OFONO_AT_DEBUG"))
> +             g_at_chat_set_debug(data->data_port, linktop_debug, "Data: ");
>  
> -     g_at_chat_send(data->control, "AT+CFUN=4", none_prefix,
> -                                     cfun_enable, modem, NULL);
> +     g_at_chat_set_disconnect_function(data->data_port,
> +                                             linktop_disconnect, modem);
>  
> +     g_at_chat_send(data->modem_port, "AT&F E0 V1 X4 &C1 +CMEE=1", NULL,
> +                                     NULL, NULL, NULL);
> +     g_at_chat_send(data->data_port, "AT&F E0 V1 X4 &C1 +CMEE=1", NULL,
> +                                     NULL, NULL, NULL);
> +     g_at_chat_send(data->modem_port, "AT+CFUN=4", none_prefix,
> +                             cfun_enable, modem, NULL);
> +     
>       return -EINPROGRESS;
>  }
>  
> @@ -212,8 +305,11 @@ static void cfun_disable(gboolean ok, GAtResult *result, 
> gpointer user_data)
>  
>       DBG("");
>  
> -     g_at_chat_unref(data->control);
> -     data->control = NULL;
> +     g_at_chat_unref(data->modem_port);
> +     data->modem_port = NULL;
> +
> +     g_at_chat_unref(data->data_port);
> +     data->data_port = NULL;
>  
>       if (ok)
>               ofono_modem_set_powered(modem, FALSE);
> @@ -225,19 +321,17 @@ static int linktop_disable(struct ofono_modem *modem)
>  
>       DBG("%p", modem);
>  
> -     if (data->modem) {
> -             g_at_chat_cancel_all(data->modem);
> -             g_at_chat_unregister_all(data->modem);
> -             g_at_chat_unref(data->modem);
> -             data->modem = NULL;
> +     if (data->reopen_source > 0) {
> +             g_source_remove(data->reopen_source);
> +             data->reopen_source = 0;
>       }
>  
> -     if (data->control == NULL)
> +     if (data->modem_port == NULL)
>               return 0;
>  
> -     g_at_chat_cancel_all(data->control);
> -     g_at_chat_unregister_all(data->control);
> -     g_at_chat_send(data->control, "AT+CFUN=4", none_prefix,
> +     g_at_chat_cancel_all(data->modem_port);
> +     g_at_chat_unregister_all(data->modem_port);
> +     g_at_chat_send(data->modem_port, "AT+CFUN=4", NULL,
>                                       cfun_disable, modem, NULL);
>  
>       return -EINPROGRESS;
> @@ -253,17 +347,37 @@ static void set_online_cb(gboolean ok, GAtResult 
> *result, gpointer user_data)
>       cb(&error, cbd->data);
>  }
>  
> +static void set_offline_cb(gboolean ok, GAtResult *result, gpointer 
> user_data)
> +{
> +     struct cb_data *cbd = user_data;
> +     ofono_modem_online_cb_t cb = cbd->cb;
> +     struct ofono_error error;
> +
> +     if (ok) {
> +             struct linktop_data *data = cbd->user;
> +
> +             data->gc = NULL;
> +             data->gprs = NULL;
> +     }
> +
> +     decode_at_error(&error, g_at_result_final_response(result));
> +     cb(&error, cbd->data);
> +}
> +
>  static void linktop_set_online(struct ofono_modem *modem, ofono_bool_t 
> online,
>                               ofono_modem_online_cb_t cb, void *user_data)
>  {
>       struct linktop_data *data = ofono_modem_get_data(modem);
> -     GAtChat *chat = data->control;
> +     GAtChat *chat = data->modem_port;
>       struct cb_data *cbd = cb_data_new(cb, user_data);
>       char const *command = online ? "AT+CFUN=1" : "AT+CFUN=4";
>  
>       DBG("modem %p %s", modem, online ? "online" : "offline");
>  
> -     if (g_at_chat_send(chat, command, NULL, set_online_cb, cbd, g_free))
> +     cbd->user = data;
> +
> +     if (g_at_chat_send(chat, command, NULL,
> +                             online ? set_online_cb : set_offline_cb, cbd, 
> g_free))
>               return;
>  
>       g_free(cbd);
> @@ -278,11 +392,11 @@ static void linktop_pre_sim(struct ofono_modem *modem)
>  
>       DBG("%p", modem);
>  
> -     ofono_devinfo_create(modem, 0, "atmodem", data->control);
> -     sim = ofono_sim_create(modem, 0, "atmodem", data->control);
> -     ofono_voicecall_create(modem, 0, "stemodem", data->control);
> +     ofono_devinfo_create(modem, 0, "atmodem", data->modem_port);
> +     sim = ofono_sim_create(modem, 0, "atmodem", data->modem_port);
> +     ofono_voicecall_create(modem, 0, "stemodem", data->modem_port);
>  
> -     if (sim)
> +     if (data->have_sim && sim)
>               ofono_sim_inserted_notify(sim, TRUE);
>  }
>  
> @@ -292,35 +406,36 @@ static void linktop_post_sim(struct ofono_modem *modem)
>  
>       DBG("%p", modem);
>  
> -     ofono_radio_settings_create(modem, 0, "stemodem", data->control);
> -     ofono_phonebook_create(modem, 0, "atmodem", data->control);
> -     ofono_sms_create(modem, 0, "atmodem", data->control);
> +     ofono_stk_create(modem, 0, "mbmmodem", data->modem_port);
> +     ofono_radio_settings_create(modem, 0, "stemodem", data->modem_port);

The above two look fishy.  Have you tested that they work?  Otherwise
lets drop them for now.

> +     ofono_phonebook_create(modem, 0, "atmodem", data->modem_port);
> +     ofono_sms_create(modem, 0, "atmodem", data->modem_port);
>  }
>  
>  static void linktop_post_online(struct ofono_modem *modem)
>  {
>       struct linktop_data *data = ofono_modem_get_data(modem);
>       struct ofono_message_waiting *mw;
> -     struct ofono_gprs *gprs;
> -     struct ofono_gprs_context *gc;
>  
>       DBG("%p", modem);
>  
> -     ofono_ussd_create(modem, 0, "atmodem", data->control);
> -     ofono_call_forwarding_create(modem, 0, "atmodem", data->control);
> -     ofono_call_settings_create(modem, 0, "atmodem", data->control);
> -     ofono_netreg_create(modem, OFONO_VENDOR_MBM, "atmodem", data->control);
> -     ofono_call_meter_create(modem, 0, "atmodem", data->control);
> -     ofono_call_barring_create(modem, 0, "atmodem", data->control);
> -     ofono_call_volume_create(modem, 0, "atmodem", data->control);
> -     ofono_cbs_create(modem, 0, "atmodem", data->control);
> -
> -     gprs = ofono_gprs_create(modem, OFONO_VENDOR_MBM,
> -                                     "atmodem", data->control);
> -     gc = ofono_gprs_context_create(modem, 0, "atmodem", data->modem);
> -
> -     if (gprs && gc)
> -             ofono_gprs_add_context(gprs, gc);
> +     ofono_netreg_create(modem, 0, "atmodem", data->modem_port);
> +     ofono_cbs_create(modem, 0, "atmodem", data->modem_port);
> +     ofono_ussd_create(modem, 0, "atmodem", data->modem_port);
> +     ofono_call_forwarding_create(modem, 0, "atmodem", data->modem_port);
> +     ofono_call_settings_create(modem, 0, "atmodem", data->modem_port);
> +     ofono_call_meter_create(modem, 0, "atmodem", data->modem_port);
> +     ofono_call_barring_create(modem, 0, "atmodem", data->modem_port);
> +     ofono_call_volume_create(modem, 0, "atmodem", data->modem_port);
> +
> +     data->gprs = ofono_gprs_create(modem, 0,
> +                                     "atmodem", data->modem_port);
> +     data->gc = ofono_gprs_context_create(modem, 0,
> +                                     "atmodem", data->data_port);
> +
> +     if (data->gprs && data->gc) {
> +             ofono_gprs_add_context(data->gprs, data->gc);
> +     }

These braces are not necessary

>  
>       mw = ofono_message_waiting_create(modem);
>  

Regards,
-Denis
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