arm: tegra: fb: Apply new mode even if its current
[linux-2.6.git] / drivers / bluetooth / btuart_cs.c
index ad8d972..526b618 100644 (file)
  *
  */
 
-#include <linux/config.h>
 #include <linux/module.h>
 
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/types.h>
-#include <linux/sched.h>
 #include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/ptrace.h>
@@ -43,9 +41,6 @@
 #include <asm/system.h>
 #include <asm/io.h>
 
-#include <pcmcia/version.h>
-#include <pcmcia/cs_types.h>
-#include <pcmcia/cs.h>
 #include <pcmcia/cistpl.h>
 #include <pcmcia/ciscode.h>
 #include <pcmcia/ds.h>
@@ -69,8 +64,7 @@ MODULE_LICENSE("GPL");
 
 
 typedef struct btuart_info_t {
-       dev_link_t link;
-       dev_node_t node;
+       struct pcmcia_device *p_dev;
 
        struct hci_dev *hdev;
 
@@ -85,16 +79,10 @@ typedef struct btuart_info_t {
 } btuart_info_t;
 
 
-static void btuart_config(dev_link_t *link);
-static void btuart_release(dev_link_t *link);
-static int btuart_event(event_t event, int priority, event_callback_args_t *args);
+static int btuart_config(struct pcmcia_device *link);
+static void btuart_release(struct pcmcia_device *link);
 
-static dev_info_t dev_info = "btuart_cs";
-
-static dev_link_t *btuart_attach(void);
-static void btuart_detach(dev_link_t *);
-
-static dev_link_t *dev_list = NULL;
+static void btuart_detach(struct pcmcia_device *p_dev);
 
 
 /* Maximum baud rate */
@@ -153,13 +141,13 @@ static void btuart_write_wakeup(btuart_info_t *info)
        }
 
        do {
-               register unsigned int iobase = info->link.io.BasePort1;
+               register unsigned int iobase = info->p_dev->resource[0]->start;
                register struct sk_buff *skb;
                register int len;
 
                clear_bit(XMIT_WAKEUP, &(info->tx_state));
 
-               if (!(info->link.state & DEV_PRESENT))
+               if (!pcmcia_dev_present(info->p_dev))
                        return;
 
                if (!(skb = skb_dequeue(&(info->txq))))
@@ -194,7 +182,7 @@ static void btuart_receive(btuart_info_t *info)
                return;
        }
 
-       iobase = info->link.io.BasePort1;
+       iobase = info->p_dev->resource[0]->start;
 
        do {
                info->hdev->stat.byte_rx++;
@@ -212,9 +200,9 @@ static void btuart_receive(btuart_info_t *info)
                if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
 
                        info->rx_skb->dev = (void *) info->hdev;
-                       info->rx_skb->pkt_type = inb(iobase + UART_RX);
+                       bt_cb(info->rx_skb)->pkt_type = inb(iobase + UART_RX);
 
-                       switch (info->rx_skb->pkt_type) {
+                       switch (bt_cb(info->rx_skb)->pkt_type) {
 
                        case HCI_EVENT_PKT:
                                info->rx_state = RECV_WAIT_EVENT_HEADER;
@@ -233,7 +221,7 @@ static void btuart_receive(btuart_info_t *info)
 
                        default:
                                /* Unknown packet */
-                               BT_ERR("Unknown HCI packet with type 0x%02x received", info->rx_skb->pkt_type);
+                               BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type);
                                info->hdev->stat.err_rx++;
                                clear_bit(HCI_RUNNING, &(info->hdev->flags));
 
@@ -259,20 +247,20 @@ static void btuart_receive(btuart_info_t *info)
                                switch (info->rx_state) {
 
                                case RECV_WAIT_EVENT_HEADER:
-                                       eh = (struct hci_event_hdr *)(info->rx_skb->data);
+                                       eh = hci_event_hdr(info->rx_skb);
                                        info->rx_state = RECV_WAIT_DATA;
                                        info->rx_count = eh->plen;
                                        break;
 
                                case RECV_WAIT_ACL_HEADER:
-                                       ah = (struct hci_acl_hdr *)(info->rx_skb->data);
+                                       ah = hci_acl_hdr(info->rx_skb);
                                        dlen = __le16_to_cpu(ah->dlen);
                                        info->rx_state = RECV_WAIT_DATA;
                                        info->rx_count = dlen;
                                        break;
 
                                case RECV_WAIT_SCO_HEADER:
-                                       sh = (struct hci_sco_hdr *)(info->rx_skb->data);
+                                       sh = hci_sco_hdr(info->rx_skb);
                                        info->rx_state = RECV_WAIT_DATA;
                                        info->rx_count = sh->dlen;
                                        break;
@@ -296,24 +284,25 @@ static void btuart_receive(btuart_info_t *info)
 }
 
 
-static irqreturn_t btuart_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
+static irqreturn_t btuart_interrupt(int irq, void *dev_inst)
 {
        btuart_info_t *info = dev_inst;
        unsigned int iobase;
        int boguscount = 0;
        int iir, lsr;
+       irqreturn_t r = IRQ_NONE;
 
-       if (!info || !info->hdev) {
-               BT_ERR("Call of irq %d for unknown device", irq);
+       if (!info || !info->hdev)
+               /* our irq handler is shared */
                return IRQ_NONE;
-       }
 
-       iobase = info->link.io.BasePort1;
+       iobase = info->p_dev->resource[0]->start;
 
        spin_lock(&(info->lock));
 
        iir = inb(iobase + UART_IIR) & UART_IIR_ID;
        while (iir) {
+               r = IRQ_HANDLED;
 
                /* Clear interrupt */
                lsr = inb(iobase + UART_LSR);
@@ -347,7 +336,7 @@ static irqreturn_t btuart_interrupt(int irq, void *dev_inst, struct pt_regs *reg
 
        spin_unlock(&(info->lock));
 
-       return IRQ_HANDLED;
+       return r;
 }
 
 
@@ -364,7 +353,7 @@ static void btuart_change_speed(btuart_info_t *info, unsigned int speed)
                return;
        }
 
-       iobase = info->link.io.BasePort1;
+       iobase = info->p_dev->resource[0]->start;
 
        spin_lock_irqsave(&(info->lock), flags);
 
@@ -395,7 +384,7 @@ static void btuart_change_speed(btuart_info_t *info, unsigned int speed)
        outb(lcr, iobase + UART_LCR);   /* Set 8N1  */
        outb(fcr, iobase + UART_FCR);   /* Enable FIFO's */
 
-       /* Turn on interrups */
+       /* Turn on interrupts */
        outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER);
 
        spin_unlock_irqrestore(&(info->lock), flags);
@@ -448,7 +437,7 @@ static int btuart_hci_send_frame(struct sk_buff *skb)
 
        info = (btuart_info_t *)(hdev->driver_data);
 
-       switch (skb->pkt_type) {
+       switch (bt_cb(skb)->pkt_type) {
        case HCI_COMMAND_PKT:
                hdev->stat.cmd_tx++;
                break;
@@ -461,7 +450,7 @@ static int btuart_hci_send_frame(struct sk_buff *skb)
        };
 
        /* Prepend skb with frame type */
-       memcpy(skb_push(skb, 1), &(skb->pkt_type), 1);
+       memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1);
        skb_queue_tail(&(info->txq), skb);
 
        btuart_write_wakeup(info);
@@ -488,7 +477,7 @@ static int btuart_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned lon
 static int btuart_open(btuart_info_t *info)
 {
        unsigned long flags;
-       unsigned int iobase = info->link.io.BasePort1;
+       unsigned int iobase = info->p_dev->resource[0]->start;
        struct hci_dev *hdev;
 
        spin_lock_init(&(info->lock));
@@ -508,8 +497,9 @@ static int btuart_open(btuart_info_t *info)
 
        info->hdev = hdev;
 
-       hdev->type = HCI_PCCARD;
+       hdev->bus = HCI_PCCARD;
        hdev->driver_data = info;
+       SET_HCIDEV_DEV(hdev, &info->p_dev->dev);
 
        hdev->open     = btuart_hci_open;
        hdev->close    = btuart_hci_close;
@@ -557,7 +547,7 @@ static int btuart_open(btuart_info_t *info)
 static int btuart_close(btuart_info_t *info)
 {
        unsigned long flags;
-       unsigned int iobase = info->link.io.BasePort1;
+       unsigned int iobase = info->p_dev->resource[0]->start;
        struct hci_dev *hdev = info->hdev;
 
        if (!hdev)
@@ -583,285 +573,134 @@ static int btuart_close(btuart_info_t *info)
        return 0;
 }
 
-static dev_link_t *btuart_attach(void)
+static int btuart_probe(struct pcmcia_device *link)
 {
        btuart_info_t *info;
-       client_reg_t client_reg;
-       dev_link_t *link;
-       int ret;
 
        /* Create new info device */
-       info = kmalloc(sizeof(*info), GFP_KERNEL);
+       info = kzalloc(sizeof(*info), GFP_KERNEL);
        if (!info)
-               return NULL;
-       memset(info, 0, sizeof(*info));
+               return -ENOMEM;
 
-       link = &info->link;
+       info->p_dev = link;
        link->priv = info;
 
-       link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
-       link->io.NumPorts1 = 8;
-       link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
-       link->irq.IRQInfo1 = IRQ_LEVEL_ID;
-
-       link->irq.Handler = btuart_interrupt;
-       link->irq.Instance = info;
-
-       link->conf.Attributes = CONF_ENABLE_IRQ;
-       link->conf.Vcc = 50;
-       link->conf.IntType = INT_MEMORY_AND_IO;
-
-       /* Register with Card Services */
-       link->next = dev_list;
-       dev_list = link;
-       client_reg.dev_info = &dev_info;
-       client_reg.EventMask =
-               CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
-               CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
-               CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
-       client_reg.event_handler = &btuart_event;
-       client_reg.Version = 0x0210;
-       client_reg.event_callback_args.client_data = link;
-
-       ret = pcmcia_register_client(&link->handle, &client_reg);
-       if (ret != CS_SUCCESS) {
-               cs_error(link->handle, RegisterClient, ret);
-               btuart_detach(link);
-               return NULL;
-       }
+       link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP |
+               CONF_AUTO_SET_IO;
 
-       return link;
+       return btuart_config(link);
 }
 
 
-static void btuart_detach(dev_link_t *link)
+static void btuart_detach(struct pcmcia_device *link)
 {
        btuart_info_t *info = link->priv;
-       dev_link_t **linkp;
-       int ret;
 
-       /* Locate device structure */
-       for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
-               if (*linkp == link)
-                       break;
+       btuart_release(link);
+       kfree(info);
+}
 
-       if (*linkp == NULL)
-               return;
+static int btuart_check_config(struct pcmcia_device *p_dev, void *priv_data)
+{
+       int *try = priv_data;
 
-       if (link->state & DEV_CONFIG)
-               btuart_release(link);
+       if (try == 0)
+               p_dev->io_lines = 16;
 
-       if (link->handle) {
-               ret = pcmcia_deregister_client(link->handle);
-               if (ret != CS_SUCCESS)
-                       cs_error(link->handle, DeregisterClient, ret);
-       }
+       if ((p_dev->resource[0]->end != 8) || (p_dev->resource[0]->start == 0))
+               return -EINVAL;
 
-       /* Unlink device structure, free bits */
-       *linkp = link->next;
+       p_dev->resource[0]->end = 8;
+       p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
+       p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
 
-       kfree(info);
+       return pcmcia_request_io(p_dev);
 }
 
-static int get_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
+static int btuart_check_config_notpicky(struct pcmcia_device *p_dev,
+                                       void *priv_data)
 {
-       int i;
+       static unsigned int base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 };
+       int j;
 
-       i = pcmcia_get_tuple_data(handle, tuple);
-       if (i != CS_SUCCESS)
-               return i;
+       if (p_dev->io_lines > 3)
+               return -ENODEV;
 
-       return pcmcia_parse_tuple(handle, tuple, parse);
-}
+       p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
+       p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
+       p_dev->resource[0]->end = 8;
 
-static int first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
-{
-       if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS)
-               return CS_NO_MORE_ITEMS;
-       return get_tuple(handle, tuple, parse);
-}
-
-static int next_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
-{
-       if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS)
-               return CS_NO_MORE_ITEMS;
-       return get_tuple(handle, tuple, parse);
+       for (j = 0; j < 5; j++) {
+               p_dev->resource[0]->start = base[j];
+               p_dev->io_lines = base[j] ? 16 : 3;
+               if (!pcmcia_request_io(p_dev))
+                       return 0;
+       }
+       return -ENODEV;
 }
 
-static void btuart_config(dev_link_t *link)
+static int btuart_config(struct pcmcia_device *link)
 {
-       static kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 };
-       client_handle_t handle = link->handle;
        btuart_info_t *info = link->priv;
-       tuple_t tuple;
-       u_short buf[256];
-       cisparse_t parse;
-       cistpl_cftable_entry_t *cf = &parse.cftable_entry;
-       config_info_t config;
-       int i, j, try, last_ret, last_fn;
-
-       tuple.TupleData = (cisdata_t *)buf;
-       tuple.TupleOffset = 0;
-       tuple.TupleDataMax = 255;
-       tuple.Attributes = 0;
-
-       /* Get configuration register information */
-       tuple.DesiredTuple = CISTPL_CONFIG;
-       last_ret = first_tuple(handle, &tuple, &parse);
-       if (last_ret != CS_SUCCESS) {
-               last_fn = ParseTuple;
-               goto cs_failed;
-       }
-       link->conf.ConfigBase = parse.config.base;
-       link->conf.Present = parse.config.rmask[0];
-
-       /* Configure card */
-       link->state |= DEV_CONFIG;
-       i = pcmcia_get_configuration_info(handle, &config);
-       link->conf.Vcc = config.Vcc;
-
-       /* First pass: look for a config entry that looks normal. */
-       tuple.TupleData = (cisdata_t *) buf;
-       tuple.TupleOffset = 0;
-       tuple.TupleDataMax = 255;
-       tuple.Attributes = 0;
-       tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
-       /* Two tries: without IO aliases, then with aliases */
-       for (try = 0; try < 2; try++) {
-               i = first_tuple(handle, &tuple, &parse);
-               while (i != CS_NO_MORE_ITEMS) {
-                       if (i != CS_SUCCESS)
-                               goto next_entry;
-                       if (cf->vpp1.present & (1 << CISTPL_POWER_VNOM))
-                               link->conf.Vpp1 = link->conf.Vpp2 = cf->vpp1.param[CISTPL_POWER_VNOM] / 10000;
-                       if ((cf->io.nwin > 0) && (cf->io.win[0].len == 8) && (cf->io.win[0].base != 0)) {
-                               link->conf.ConfigIndex = cf->index;
-                               link->io.BasePort1 = cf->io.win[0].base;
-                               link->io.IOAddrLines = (try == 0) ? 16 : cf->io.flags & CISTPL_IO_LINES_MASK;
-                               i = pcmcia_request_io(link->handle, &link->io);
-                               if (i == CS_SUCCESS)
-                                       goto found_port;
-                       }
-next_entry:
-                       i = next_tuple(handle, &tuple, &parse);
-               }
-       }
+       int i;
+       int try;
+
+       /* First pass: look for a config entry that looks normal.
+          Two tries: without IO aliases, then with aliases */
+       for (try = 0; try < 2; try++)
+               if (!pcmcia_loop_config(link, btuart_check_config, &try))
+                       goto found_port;
 
        /* Second pass: try to find an entry that isn't picky about
           its base address, then try to grab any standard serial port
           address, and finally try to get any free port. */
-       i = first_tuple(handle, &tuple, &parse);
-       while (i != CS_NO_MORE_ITEMS) {
-               if ((i == CS_SUCCESS) && (cf->io.nwin > 0)
-                   && ((cf->io.flags & CISTPL_IO_LINES_MASK) <= 3)) {
-                       link->conf.ConfigIndex = cf->index;
-                       for (j = 0; j < 5; j++) {
-                               link->io.BasePort1 = base[j];
-                               link->io.IOAddrLines = base[j] ? 16 : 3;
-                               i = pcmcia_request_io(link->handle, &link->io);
-                               if (i == CS_SUCCESS)
-                                       goto found_port;
-                       }
-               }
-               i = next_tuple(handle, &tuple, &parse);
-       }
+       if (!pcmcia_loop_config(link, btuart_check_config_notpicky, NULL))
+               goto found_port;
+
+       BT_ERR("No usable port range found");
+       goto failed;
 
 found_port:
-       if (i != CS_SUCCESS) {
-               BT_ERR("No usable port range found");
-               cs_error(link->handle, RequestIO, i);
+       i = pcmcia_request_irq(link, btuart_interrupt);
+       if (i != 0)
                goto failed;
-       }
-
-       i = pcmcia_request_irq(link->handle, &link->irq);
-       if (i != CS_SUCCESS) {
-               cs_error(link->handle, RequestIRQ, i);
-               link->irq.AssignedIRQ = 0;
-       }
 
-       i = pcmcia_request_configuration(link->handle, &link->conf);
-       if (i != CS_SUCCESS) {
-               cs_error(link->handle, RequestConfiguration, i);
+       i = pcmcia_enable_device(link);
+       if (i != 0)
                goto failed;
-       }
 
        if (btuart_open(info) != 0)
                goto failed;
 
-       strcpy(info->node.dev_name, info->hdev->name);
-       link->dev = &info->node;
-       link->state &= ~DEV_CONFIG_PENDING;
-
-       return;
-
-cs_failed:
-       cs_error(link->handle, last_fn, last_ret);
+       return 0;
 
 failed:
        btuart_release(link);
+       return -ENODEV;
 }
 
 
-static void btuart_release(dev_link_t *link)
+static void btuart_release(struct pcmcia_device *link)
 {
        btuart_info_t *info = link->priv;
 
-       if (link->state & DEV_PRESENT)
-               btuart_close(info);
+       btuart_close(info);
 
-       link->dev = NULL;
-
-       pcmcia_release_configuration(link->handle);
-       pcmcia_release_io(link->handle, &link->io);
-       pcmcia_release_irq(link->handle, &link->irq);
-
-       link->state &= ~DEV_CONFIG;
+       pcmcia_disable_device(link);
 }
 
-
-static int btuart_event(event_t event, int priority, event_callback_args_t *args)
-{
-       dev_link_t *link = args->client_data;
-       btuart_info_t *info = link->priv;
-
-       switch (event) {
-       case CS_EVENT_CARD_REMOVAL:
-               link->state &= ~DEV_PRESENT;
-               if (link->state & DEV_CONFIG) {
-                       btuart_close(info);
-                       btuart_release(link);
-               }
-               break;
-       case CS_EVENT_CARD_INSERTION:
-               link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
-               btuart_config(link);
-               break;
-       case CS_EVENT_PM_SUSPEND:
-               link->state |= DEV_SUSPEND;
-               /* Fall through... */
-       case CS_EVENT_RESET_PHYSICAL:
-               if (link->state & DEV_CONFIG)
-                       pcmcia_release_configuration(link->handle);
-               break;
-       case CS_EVENT_PM_RESUME:
-               link->state &= ~DEV_SUSPEND;
-               /* Fall through... */
-       case CS_EVENT_CARD_RESET:
-               if (DEV_OK(link))
-                       pcmcia_request_configuration(link->handle, &link->conf);
-               break;
-       }
-
-       return 0;
-}
+static const struct pcmcia_device_id btuart_ids[] = {
+       /* don't use this driver. Use serial_cs + hci_uart instead */
+       PCMCIA_DEVICE_NULL
+};
+MODULE_DEVICE_TABLE(pcmcia, btuart_ids);
 
 static struct pcmcia_driver btuart_driver = {
        .owner          = THIS_MODULE,
-       .drv            = {
-               .name   = "btuart_cs",
-       },
-       .attach         = btuart_attach,
-       .detach         = btuart_detach,
+       .name           = "btuart_cs",
+       .probe          = btuart_probe,
+       .remove         = btuart_detach,
+       .id_table       = btuart_ids,
 };
 
 static int __init init_btuart_cs(void)
@@ -873,7 +712,6 @@ static int __init init_btuart_cs(void)
 static void __exit exit_btuart_cs(void)
 {
        pcmcia_unregister_driver(&btuart_driver);
-       BUG_ON(dev_list != NULL);
 }
 
 module_init(init_btuart_cs);