pcmcia: do not use io_req_t when calling pcmcia_request_io()

Instead of io_req_t, drivers are now requested to fill out
struct pcmcia_device *p_dev->resource[0,1] for up to two ioport
ranges. After a call to pcmcia_request_io(), the ports found there
are reserved, after calling pcmcia_request_configuration(), they may
be used.

CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-ide@vger.kernel.org
CC: linux-usb@vger.kernel.org
CC: laforge@gnumonks.org
CC: linux-mtd@lists.infradead.org
CC: alsa-devel@alsa-project.org
CC: linux-serial@vger.kernel.org
CC: Michael Buesch <mb@bu3sch.de>
Acked-by: Marcel Holtmann <marcel@holtmann.org> (for drivers/bluetooth/)
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

1 files changed, 19 insertions, 2 deletions

diff --git a/include/pcmcia/ds.h b/include/pcmcia/ds.h
index 3dafd7db34df..0748bec0a87a 100644
--- a/include/pcmcia/ds.h
+++ b/include/pcmcia/ds.h
@@ -80,7 +80,6 @@ struct pcmcia_device {
         struct list_head        socket_device_list;
 
         /* deprecated, will be cleaned up soon */
-        io_req_t                io;
         config_req_t            conf;
         window_handle_t         win;
 
@@ -88,6 +87,8 @@ struct pcmcia_device {
         unsigned int            irq;
         struct resource         *resource[MAX_IO_WIN];
 
+        unsigned int            io_lines; /* number of I/O lines */
+
         /* Is the device suspended? */
         u16                     suspended:1;
 
@@ -179,7 +180,7 @@ int pcmcia_read_config_byte(struct pcmcia_device *p_dev, off_t where, u8 *val);
 int pcmcia_write_config_byte(struct pcmcia_device *p_dev, off_t where, u8 val);
 
 /* device configuration */
-int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req);
+int pcmcia_request_io(struct pcmcia_device *p_dev);
 
 int __must_check
 __pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev,
@@ -206,6 +207,22 @@ int pcmcia_map_mem_page(struct pcmcia_device *p_dev, window_handle_t win,
 int pcmcia_modify_configuration(struct pcmcia_device *p_dev, modconf_t *mod);
 void pcmcia_disable_device(struct pcmcia_device *p_dev);
 
+/* IO ports */
+#define IO_DATA_PATH_WIDTH      0x18
+#define IO_DATA_PATH_WIDTH_8    0x00
+#define IO_DATA_PATH_WIDTH_16   0x08
+#define IO_DATA_PATH_WIDTH_AUTO 0x10
+
+/* convert flag found in cfgtable to data path width parameter */
+static inline int pcmcia_io_cfg_data_width(unsigned int flags)
+{
+        if (!(flags & CISTPL_IO_8BIT))
+                return IO_DATA_PATH_WIDTH_16;
+        if (!(flags & CISTPL_IO_16BIT))
+                return IO_DATA_PATH_WIDTH_8;
+        return IO_DATA_PATH_WIDTH_AUTO;
+}
+
 #endif /* __KERNEL__ */
 
 #endif /* _LINUX_DS_H */