pcmcia: pcmcia_config_loop() ConfigIndex unification

[firefly-linux-kernel-4.4.55.git] / drivers / pcmcia / pcmcia_resource.c

diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c
index cb6b5da3f29a42380a3627e5182f3eb9bcb4659e..ba34ac8876fff3c2152fd29ff6e0ce6b5718a07a 100644 (file)
--- a/drivers/pcmcia/pcmcia_resource.c
+++ b/drivers/pcmcia/pcmcia_resource.c
@@ -309,74 +309,6 @@ int pcmcia_get_window(struct pcmcia_socket *s, window_handle_t *handle,
 EXPORT_SYMBOL(pcmcia_get_window);
 
 
-/** pccard_get_status
- *
- * Get the current socket state bits.  We don't support the latched
- * SocketState yet: I haven't seen any point for it.
- */
-
-int pccard_get_status(struct pcmcia_socket *s, struct pcmcia_device *p_dev,
-                     cs_status_t *status)
-{
-       config_t *c;
-       int val;
-
-       s->ops->get_status(s, &val);
-       status->CardState = status->SocketState = 0;
-       status->CardState |= (val & SS_DETECT) ? CS_EVENT_CARD_DETECT : 0;
-       status->CardState |= (val & SS_CARDBUS) ? CS_EVENT_CB_DETECT : 0;
-       status->CardState |= (val & SS_3VCARD) ? CS_EVENT_3VCARD : 0;
-       status->CardState |= (val & SS_XVCARD) ? CS_EVENT_XVCARD : 0;
-       if (s->state & SOCKET_SUSPEND)
-               status->CardState |= CS_EVENT_PM_SUSPEND;
-       if (!(s->state & SOCKET_PRESENT))
-               return CS_NO_CARD;
-
-       c = (p_dev) ? p_dev->function_config : NULL;
-
-       if ((c != NULL) && (c->state & CONFIG_LOCKED) &&
-           (c->IntType & (INT_MEMORY_AND_IO | INT_ZOOMED_VIDEO))) {
-               u_char reg;
-               if (c->CardValues & PRESENT_PIN_REPLACE) {
-                       pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_PRR)>>1, 1, &reg);
-                       status->CardState |=
-                               (reg & PRR_WP_STATUS) ? CS_EVENT_WRITE_PROTECT : 0;
-                       status->CardState |=
-                               (reg & PRR_READY_STATUS) ? CS_EVENT_READY_CHANGE : 0;
-                       status->CardState |=
-                               (reg & PRR_BVD2_STATUS) ? CS_EVENT_BATTERY_LOW : 0;
-                       status->CardState |=
-                               (reg & PRR_BVD1_STATUS) ? CS_EVENT_BATTERY_DEAD : 0;
-               } else {
-                       /* No PRR?  Then assume we're always ready */
-                       status->CardState |= CS_EVENT_READY_CHANGE;
-               }
-               if (c->CardValues & PRESENT_EXT_STATUS) {
-                       pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_ESR)>>1, 1, &reg);
-                       status->CardState |=
-                               (reg & ESR_REQ_ATTN) ? CS_EVENT_REQUEST_ATTENTION : 0;
-               }
-               return CS_SUCCESS;
-       }
-       status->CardState |=
-               (val & SS_WRPROT) ? CS_EVENT_WRITE_PROTECT : 0;
-       status->CardState |=
-               (val & SS_BATDEAD) ? CS_EVENT_BATTERY_DEAD : 0;
-       status->CardState |=
-               (val & SS_BATWARN) ? CS_EVENT_BATTERY_LOW : 0;
-       status->CardState |=
-               (val & SS_READY) ? CS_EVENT_READY_CHANGE : 0;
-       return CS_SUCCESS;
-} /* pccard_get_status */
-
-int pcmcia_get_status(struct pcmcia_device *p_dev, cs_status_t *status)
-{
-       return pccard_get_status(p_dev->socket, p_dev, status);
-}
-EXPORT_SYMBOL(pcmcia_get_status);
-
-
-
 /** pcmcia_get_mem_page
  *
  * Change the card address of an already open memory window.
@@ -977,3 +909,69 @@ void pcmcia_disable_device(struct pcmcia_device *p_dev) {
                pcmcia_release_window(p_dev->win);
 }
 EXPORT_SYMBOL(pcmcia_disable_device);
+
+
+struct pcmcia_cfg_mem {
+       tuple_t tuple;
+       cisparse_t parse;
+       u8 buf[256];
+};
+
+/**
+ * pcmcia_loop_config() - loop over configuration options
+ * @p_dev:     the struct pcmcia_device which we need to loop for.
+ * @conf_check:        function to call for each configuration option.
+ *             It gets passed the struct pcmcia_device, the CIS data
+ *             describing the configuration option, and private data
+ *             being passed to pcmcia_loop_config()
+ * @priv_data: private data to be passed to the conf_check function.
+ *
+ * pcmcia_loop_config() loops over all configuration options, and calls
+ * the driver-specific conf_check() for each one, checking whether
+ * it is a valid one.
+ */
+int pcmcia_loop_config(struct pcmcia_device *p_dev,
+                      int      (*conf_check)   (struct pcmcia_device *p_dev,
+                                                cistpl_cftable_entry_t *cfg,
+                                                void *priv_data),
+                      void *priv_data)
+{
+       struct pcmcia_cfg_mem *cfg_mem;
+       tuple_t *tuple;
+       int ret = -ENODEV;
+
+       cfg_mem = kzalloc(sizeof(struct pcmcia_cfg_mem), GFP_KERNEL);
+       if (cfg_mem == NULL)
+               return -ENOMEM;
+
+       tuple = &cfg_mem->tuple;
+       tuple->TupleData = cfg_mem->buf;
+       tuple->TupleDataMax = 255;
+       tuple->TupleOffset = 0;
+       tuple->DesiredTuple = CISTPL_CFTABLE_ENTRY;
+       tuple->Attributes = 0;
+
+       ret = pcmcia_get_first_tuple(p_dev, tuple);
+       while (!ret) {
+               cistpl_cftable_entry_t *cfg = &cfg_mem->parse.cftable_entry;
+
+               if (pcmcia_get_tuple_data(p_dev, tuple))
+                       goto next_entry;
+
+               if (pcmcia_parse_tuple(p_dev, tuple, &cfg_mem->parse))
+                       goto next_entry;
+
+               /* default values */
+               p_dev->conf.ConfigIndex = cfg->index;
+
+               ret = conf_check(p_dev, cfg, priv_data);
+               if (!ret)
+                       break;
+
+next_entry:
+               ret = pcmcia_get_next_tuple(p_dev, tuple);
+       }
+
+       return ret;
+}
+EXPORT_SYMBOL(pcmcia_loop_config);