From 5c88b02196a99332dacf305c8757674dd7a303ff Mon Sep 17 00:00:00 2001 From: Pavan Savoy Date: Fri, 4 Feb 2011 02:23:09 -0600 Subject: drivers:misc: ti-st: register with channel IDs The architecture of shared transport had begun with individual protocols like bluetooth, fm and gps telling the shared transport what sort of protocol they are and then expecting the ST driver to parse the incoming data from chip and forward data only relevant to the protocol drivers. This change would mean each protocol drivers would also send information to ST driver as to how to intrepret their protocol data coming out of the chip. Signed-off-by: Pavan Savoy Signed-off-by: Greg Kroah-Hartman --- drivers/misc/ti-st/st_kim.c | 56 ++++++++++++++++++++++----------------------- 1 file changed, 27 insertions(+), 29 deletions(-) (limited to 'drivers/misc/ti-st/st_kim.c') diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c index 73b6c8b0e869..707c85826417 100644 --- a/drivers/misc/ti-st/st_kim.c +++ b/drivers/misc/ti-st/st_kim.c @@ -32,11 +32,7 @@ #include #include -/* understand BT events for fw response */ -#include -#include -#include - +#include #include @@ -134,7 +130,7 @@ static inline int kim_check_data_len(struct kim_data_s *kim_gdata, int len) /* Packet header has non-zero payload length and * we have enough space in created skb. Lets read * payload data */ - kim_gdata->rx_state = ST_BT_W4_DATA; + kim_gdata->rx_state = ST_W4_DATA; kim_gdata->rx_count = len; return len; } @@ -158,8 +154,8 @@ void kim_int_recv(struct kim_data_s *kim_gdata, const unsigned char *data, long count) { const unsigned char *ptr; - struct hci_event_hdr *eh; int len = 0, type = 0; + unsigned char *plen; pr_debug("%s", __func__); /* Decode received bytes here */ @@ -183,29 +179,27 @@ void kim_int_recv(struct kim_data_s *kim_gdata, /* Check ST RX state machine , where are we? */ switch (kim_gdata->rx_state) { /* Waiting for complete packet ? */ - case ST_BT_W4_DATA: + case ST_W4_DATA: pr_debug("Complete pkt received"); validate_firmware_response(kim_gdata); kim_gdata->rx_state = ST_W4_PACKET_TYPE; kim_gdata->rx_skb = NULL; continue; /* Waiting for Bluetooth event header ? */ - case ST_BT_W4_EVENT_HDR: - eh = (struct hci_event_hdr *)kim_gdata-> - rx_skb->data; - pr_debug("Event header: evt 0x%2.2x" - "plen %d", eh->evt, eh->plen); - kim_check_data_len(kim_gdata, eh->plen); + case ST_W4_HEADER: + plen = + (unsigned char *)&kim_gdata->rx_skb->data[1]; + pr_debug("event hdr: plen 0x%02x\n", *plen); + kim_check_data_len(kim_gdata, *plen); continue; } /* end of switch */ } /* end of if rx_state */ switch (*ptr) { /* Bluetooth event packet? */ - case HCI_EVENT_PKT: - pr_info("Event packet"); - kim_gdata->rx_state = ST_BT_W4_EVENT_HDR; - kim_gdata->rx_count = HCI_EVENT_HDR_SIZE; - type = HCI_EVENT_PKT; + case 0x04: + kim_gdata->rx_state = ST_W4_HEADER; + kim_gdata->rx_count = 2; + type = *ptr; break; default: pr_info("unknown packet"); @@ -216,16 +210,18 @@ void kim_int_recv(struct kim_data_s *kim_gdata, ptr++; count--; kim_gdata->rx_skb = - bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); + alloc_skb(1024+8, GFP_ATOMIC); if (!kim_gdata->rx_skb) { pr_err("can't allocate mem for new packet"); kim_gdata->rx_state = ST_W4_PACKET_TYPE; kim_gdata->rx_count = 0; return; } - bt_cb(kim_gdata->rx_skb)->pkt_type = type; + skb_reserve(kim_gdata->rx_skb, 8); + kim_gdata->rx_skb->cb[0] = 4; + kim_gdata->rx_skb->cb[1] = 0; + } - pr_info("done %s", __func__); return; } @@ -398,7 +394,7 @@ void st_kim_chip_toggle(enum proto_type type, enum kim_gpio_state state) gpio_set_value(kim_gdata->gpios[ST_GPS], GPIO_LOW); break; - case ST_MAX: + case ST_MAX_CHANNELS: default: break; } @@ -416,7 +412,6 @@ void st_kim_recv(void *disc_data, const unsigned char *data, long count) struct st_data_s *st_gdata = (struct st_data_s *)disc_data; struct kim_data_s *kim_gdata = st_gdata->kim_data; - pr_info(" %s ", __func__); /* copy to local buffer */ if (unlikely(data[4] == 0x01 && data[5] == 0x10 && data[0] == 0x04)) { /* must be the read_ver_cmd */ @@ -578,7 +573,7 @@ static int kim_toggle_radio(void *data, bool blocked) else st_kim_chip_toggle(type, KIM_GPIO_ACTIVE); break; - case ST_MAX: + case ST_MAX_CHANNELS: pr_err(" wrong proto type "); break; } @@ -664,12 +659,13 @@ static int kim_probe(struct platform_device *pdev) /* refer to itself */ kim_gdata->core_data->kim_data = kim_gdata; - for (proto = 0; proto < ST_MAX; proto++) { + for (proto = 0; proto < ST_MAX_CHANNELS; proto++) { kim_gdata->gpios[proto] = gpios[proto]; pr_info(" %ld gpio to be requested", gpios[proto]); } - for (proto = 0; (proto < ST_MAX) && (gpios[proto] != -1); proto++) { + for (proto = 0; (proto < ST_MAX_CHANNELS) + && (gpios[proto] != -1); proto++) { /* Claim the Bluetooth/FM/GPIO * nShutdown gpio from the system */ @@ -704,7 +700,8 @@ static int kim_probe(struct platform_device *pdev) init_completion(&kim_gdata->kim_rcvd); init_completion(&kim_gdata->ldisc_installed); - for (proto = 0; (proto < ST_MAX) && (gpios[proto] != -1); proto++) { + for (proto = 0; (proto < ST_MAX_CHANNELS) + && (gpios[proto] != -1); proto++) { /* TODO: should all types be rfkill_type_bt ? */ kim_gdata->rf_protos[proto] = proto; kim_gdata->rfkill[proto] = rfkill_alloc(protocol_names[proto], @@ -752,7 +749,8 @@ static int kim_remove(struct platform_device *pdev) kim_gdata = dev_get_drvdata(&pdev->dev); - for (proto = 0; (proto < ST_MAX) && (gpios[proto] != -1); proto++) { + for (proto = 0; (proto < ST_MAX_CHANNELS) + && (gpios[proto] != -1); proto++) { /* Claim the Bluetooth/FM/GPIO * nShutdown gpio from the system */ -- cgit v1.2.3 From ec60d0ad20ff8796dc41b30a9dce485478ccd263 Mon Sep 17 00:00:00 2001 From: Pavan Savoy Date: Fri, 4 Feb 2011 02:23:10 -0600 Subject: drivers:misc: ti-st: move from rfkill to sysfs The communication between ST KIM and UIM was interfaced over the /dev/rfkill device node. Move the interface to a simpler less abusive sysfs entry mechanism and document it in Documentation/ABI/testing/ under sysfs-platform-kim. Shared transport driver would now read the UART details originally received by bootloader or firmware as platform data. The data read will be shared over sysfs entries for the user-space UIM or other n/w manager/plugins to be read, and assist the driver by opening up the UART, setting the baud-rate and installing the line discipline. Signed-off-by: Pavan Savoy Signed-off-by: Greg Kroah-Hartman --- Documentation/ABI/testing/sysfs-platform-kim | 48 ++++++ drivers/misc/ti-st/st_kim.c | 244 +++++++++++++-------------- include/linux/ti_wilink_st.h | 19 ++- 3 files changed, 186 insertions(+), 125 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-platform-kim (limited to 'drivers/misc/ti-st/st_kim.c') diff --git a/Documentation/ABI/testing/sysfs-platform-kim b/Documentation/ABI/testing/sysfs-platform-kim new file mode 100644 index 000000000000..c1653271872a --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-kim @@ -0,0 +1,48 @@ +What: /sys/devices/platform/kim/dev_name +Date: January 2010 +KernelVersion: 2.6.38 +Contact: "Pavan Savoy" +Description: + Name of the UART device at which the WL128x chip + is connected. example: "/dev/ttyS0". + The device name flows down to architecture specific board + initialization file from the SFI/ATAGS bootloader + firmware. The name exposed is read from the user-space + dameon and opens the device when install is requested. + +What: /sys/devices/platform/kim/baud_rate +Date: January 2010 +KernelVersion: 2.6.38 +Contact: "Pavan Savoy" +Description: + The maximum reliable baud-rate the host can support. + Different platforms tend to have different high-speed + UART configurations, so the baud-rate needs to be set + locally and also sent across to the WL128x via a HCI-VS + command. The entry is read and made use by the user-space + daemon when the ldisc install is requested. + +What: /sys/devices/platform/kim/flow_cntrl +Date: January 2010 +KernelVersion: 2.6.38 +Contact: "Pavan Savoy" +Description: + The WL128x makes use of flow control mechanism, and this + entry most often should be 1, the host's UART is required + to have the capability of flow-control, or else this + entry can be made use of for exceptions. + +What: /sys/devices/platform/kim/install +Date: January 2010 +KernelVersion: 2.6.38 +Contact: "Pavan Savoy" +Description: + When one of the protocols Bluetooth, FM or GPS wants to make + use of the shared UART transport, it registers to the shared + transport driver, which will signal the user-space for opening, + configuring baud and install line discipline via this sysfs + entry. This entry would be polled upon by the user-space + daemon managing the UART, and is notified about the change + by the sysfs_notify. The value would be '1' when UART needs + to be opened/ldisc installed, and would be '0' when UART + is no more required and needs to be closed. diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c index 707c85826417..a7fda8141758 100644 --- a/drivers/misc/ti-st/st_kim.c +++ b/drivers/misc/ti-st/st_kim.c @@ -30,46 +30,12 @@ #include #include #include -#include +#include #include #include -static int kim_probe(struct platform_device *pdev); -static int kim_remove(struct platform_device *pdev); - -/* KIM platform device driver structure */ -static struct platform_driver kim_platform_driver = { - .probe = kim_probe, - .remove = kim_remove, - /* TODO: ST driver power management during suspend/resume ? - */ -#if 0 - .suspend = kim_suspend, - .resume = kim_resume, -#endif - .driver = { - .name = "kim", - .owner = THIS_MODULE, - }, -}; - -static int kim_toggle_radio(void*, bool); -static const struct rfkill_ops kim_rfkill_ops = { - .set_block = kim_toggle_radio, -}; - -/* strings to be used for rfkill entries and by - * ST Core to be used for sysfs debug entry - */ -#define PROTO_ENTRY(type, name) name -const unsigned char *protocol_names[] = { - PROTO_ENTRY(ST_BT, "Bluetooth"), - PROTO_ENTRY(ST_FM, "FM"), - PROTO_ENTRY(ST_GPS, "GPS"), -}; - #define MAX_ST_DEVICES 3 /* Imagine 1 on each UART for now */ static struct platform_device *st_kim_devices[MAX_ST_DEVICES]; @@ -371,8 +337,7 @@ void st_kim_chip_toggle(enum proto_type type, enum kim_gpio_state state) kim_gdata = dev_get_drvdata(&kim_pdev->dev); if (kim_gdata->gpios[type] == -1) { - pr_info(" gpio not requested for protocol %s", - protocol_names[type]); + pr_info("gpio not requested for protocol %d", type); return; } switch (type) { @@ -450,11 +415,6 @@ long st_kim_start(void *kim_data) pr_info(" %s", __func__); do { - /* TODO: this is only because rfkill sub-system - * doesn't send events to user-space if the state - * isn't changed - */ - rfkill_set_hw_state(kim_gdata->rfkill[ST_BT], 1); /* Configure BT nShutdown to HIGH state */ gpio_set_value(kim_gdata->gpios[ST_BT], GPIO_LOW); mdelay(5); /* FIXME: a proper toggle */ @@ -462,22 +422,20 @@ long st_kim_start(void *kim_data) mdelay(100); /* re-initialize the completion */ INIT_COMPLETION(kim_gdata->ldisc_installed); -#if 0 /* older way of signalling user-space UIM */ - /* send signal to UIM */ - err = kill_pid(find_get_pid(kim_gdata->uim_pid), SIGUSR2, 0); - if (err != 0) { - pr_info(" sending SIGUSR2 to uim failed %ld", err); - err = -1; - continue; - } -#endif - /* unblock and send event to UIM via /dev/rfkill */ - rfkill_set_hw_state(kim_gdata->rfkill[ST_BT], 0); + /* send notification to UIM */ + kim_gdata->ldisc_install = 1; + pr_info("ldisc_install = 1"); + sysfs_notify(&kim_gdata->kim_pdev->dev.kobj, + NULL, "install"); /* wait for ldisc to be installed */ err = wait_for_completion_timeout(&kim_gdata->ldisc_installed, msecs_to_jiffies(LDISC_TIME)); if (!err) { /* timeout */ pr_err("line disc installation timed out "); + kim_gdata->ldisc_install = 0; + pr_info("ldisc_install = 0"); + sysfs_notify(&kim_gdata->kim_pdev->dev.kobj, + NULL, "install"); err = -1; continue; } else { @@ -486,6 +444,10 @@ long st_kim_start(void *kim_data) err = download_firmware(kim_gdata); if (err != 0) { pr_err("download firmware failed"); + kim_gdata->ldisc_install = 0; + pr_info("ldisc_install = 0"); + sysfs_notify(&kim_gdata->kim_pdev->dev.kobj, + NULL, "install"); continue; } else { /* on success don't retry */ break; @@ -505,16 +467,15 @@ long st_kim_stop(void *kim_data) struct kim_data_s *kim_gdata = (struct kim_data_s *)kim_data; INIT_COMPLETION(kim_gdata->ldisc_installed); -#if 0 /* older way of signalling user-space UIM */ - /* send signal to UIM */ - err = kill_pid(find_get_pid(kim_gdata->uim_pid), SIGUSR2, 1); - if (err != 0) { - pr_err("sending SIGUSR2 to uim failed %ld", err); - return -1; - } -#endif - /* set BT rfkill to be blocked */ - err = rfkill_set_hw_state(kim_gdata->rfkill[ST_BT], 1); + + /* Flush any pending characters in the driver and discipline. */ + tty_ldisc_flush(kim_gdata->core_data->tty); + tty_driver_flush_buffer(kim_gdata->core_data->tty); + + /* send uninstall notification to UIM */ + pr_info("ldisc_install = 0"); + kim_gdata->ldisc_install = 0; + sysfs_notify(&kim_gdata->kim_pdev->dev.kobj, NULL, "install"); /* wait for ldisc to be un-installed */ err = wait_for_completion_timeout(&kim_gdata->ldisc_installed, @@ -553,33 +514,59 @@ static int show_list(struct seq_file *s, void *unused) return 0; } -/* function called from rfkill subsystem, when someone from - * user space would write 0/1 on the sysfs entry - * /sys/class/rfkill/rfkill0,1,3/state - */ -static int kim_toggle_radio(void *data, bool blocked) +static ssize_t show_install(struct device *dev, + struct device_attribute *attr, char *buf) { - enum proto_type type = *((enum proto_type *)data); - pr_debug(" %s: %d ", __func__, type); + struct kim_data_s *kim_data = dev_get_drvdata(dev); + return sprintf(buf, "%d\n", kim_data->ldisc_install); +} - switch (type) { - case ST_BT: - /* do nothing */ - break; - case ST_FM: - case ST_GPS: - if (blocked) - st_kim_chip_toggle(type, KIM_GPIO_INACTIVE); - else - st_kim_chip_toggle(type, KIM_GPIO_ACTIVE); - break; - case ST_MAX_CHANNELS: - pr_err(" wrong proto type "); - break; - } - return 0; +static ssize_t show_dev_name(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct kim_data_s *kim_data = dev_get_drvdata(dev); + return sprintf(buf, "%s\n", kim_data->dev_name); +} + +static ssize_t show_baud_rate(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct kim_data_s *kim_data = dev_get_drvdata(dev); + return sprintf(buf, "%ld\n", kim_data->baud_rate); +} + +static ssize_t show_flow_cntrl(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct kim_data_s *kim_data = dev_get_drvdata(dev); + return sprintf(buf, "%d\n", kim_data->flow_cntrl); } +/* structures specific for sysfs entries */ +static struct kobj_attribute ldisc_install = +__ATTR(install, 0444, (void *)show_install, NULL); + +static struct kobj_attribute uart_dev_name = +__ATTR(dev_name, 0444, (void *)show_dev_name, NULL); + +static struct kobj_attribute uart_baud_rate = +__ATTR(baud_rate, 0444, (void *)show_baud_rate, NULL); + +static struct kobj_attribute uart_flow_cntrl = +__ATTR(flow_cntrl, 0444, (void *)show_flow_cntrl, NULL); + +static struct attribute *uim_attrs[] = { + &ldisc_install.attr, + &uart_dev_name.attr, + &uart_baud_rate.attr, + &uart_flow_cntrl.attr, + NULL, +}; + +static struct attribute_group uim_attr_grp = { + .attrs = uim_attrs, +}; + /** * st_kim_ref - reference the core's data * This references the per-ST platform device in the arch/xx/ @@ -633,8 +620,9 @@ static int kim_probe(struct platform_device *pdev) { long status; long proto; - long *gpios = pdev->dev.platform_data; struct kim_data_s *kim_gdata; + struct ti_st_plat_data *pdata = pdev->dev.platform_data; + long *gpios = pdata->gpios; if ((pdev->id != -1) && (pdev->id < MAX_ST_DEVICES)) { /* multiple devices could exist */ @@ -700,30 +688,18 @@ static int kim_probe(struct platform_device *pdev) init_completion(&kim_gdata->kim_rcvd); init_completion(&kim_gdata->ldisc_installed); - for (proto = 0; (proto < ST_MAX_CHANNELS) - && (gpios[proto] != -1); proto++) { - /* TODO: should all types be rfkill_type_bt ? */ - kim_gdata->rf_protos[proto] = proto; - kim_gdata->rfkill[proto] = rfkill_alloc(protocol_names[proto], - &pdev->dev, RFKILL_TYPE_BLUETOOTH, - &kim_rfkill_ops, &kim_gdata->rf_protos[proto]); - if (kim_gdata->rfkill[proto] == NULL) { - pr_err("cannot create rfkill entry for gpio %ld", - gpios[proto]); - continue; - } - /* block upon creation */ - rfkill_init_sw_state(kim_gdata->rfkill[proto], 1); - status = rfkill_register(kim_gdata->rfkill[proto]); - if (unlikely(status)) { - pr_err("rfkill registration failed for gpio %ld", - gpios[proto]); - rfkill_unregister(kim_gdata->rfkill[proto]); - continue; - } - pr_info("rfkill entry created for %ld", gpios[proto]); + status = sysfs_create_group(&pdev->dev.kobj, &uim_attr_grp); + if (status) { + pr_err("failed to create sysfs entries"); + return status; } + /* copying platform data */ + strncpy(kim_gdata->dev_name, pdata->dev_name, UART_DEV_NAME_LEN); + kim_gdata->flow_cntrl = pdata->flow_cntrl; + kim_gdata->baud_rate = pdata->baud_rate; + pr_info("sysfs entries created\n"); + kim_debugfs_dir = debugfs_create_dir("ti-st", NULL); if (IS_ERR(kim_debugfs_dir)) { pr_err(" debugfs entries creation failed "); @@ -741,9 +717,9 @@ static int kim_probe(struct platform_device *pdev) static int kim_remove(struct platform_device *pdev) { - /* free the GPIOs requested - */ - long *gpios = pdev->dev.platform_data; + /* free the GPIOs requested */ + struct ti_st_plat_data *pdata = pdev->dev.platform_data; + long *gpios = pdata->gpios; long proto; struct kim_data_s *kim_gdata; @@ -755,12 +731,11 @@ static int kim_remove(struct platform_device *pdev) * nShutdown gpio from the system */ gpio_free(gpios[proto]); - rfkill_unregister(kim_gdata->rfkill[proto]); - rfkill_destroy(kim_gdata->rfkill[proto]); - kim_gdata->rfkill[proto] = NULL; } pr_info("kim: GPIO Freed"); debugfs_remove_recursive(kim_debugfs_dir); + + sysfs_remove_group(&pdev->dev.kobj, &uim_attr_grp); kim_gdata->kim_pdev = NULL; st_core_exit(kim_gdata->core_data); @@ -769,23 +744,46 @@ static int kim_remove(struct platform_device *pdev) return 0; } +int kim_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct ti_st_plat_data *pdata = pdev->dev.platform_data; + + if (pdata->suspend) + return pdata->suspend(pdev, state); + + return -EOPNOTSUPP; +} + +int kim_resume(struct platform_device *pdev) +{ + struct ti_st_plat_data *pdata = pdev->dev.platform_data; + + if (pdata->resume) + return pdata->resume(pdev); + + return -EOPNOTSUPP; +} + /**********************************************************************/ /* entry point for ST KIM module, called in from ST Core */ +static struct platform_driver kim_platform_driver = { + .probe = kim_probe, + .remove = kim_remove, + .suspend = kim_suspend, + .resume = kim_resume, + .driver = { + .name = "kim", + .owner = THIS_MODULE, + }, +}; static int __init st_kim_init(void) { - long ret = 0; - ret = platform_driver_register(&kim_platform_driver); - if (ret != 0) { - pr_err("platform drv registration failed"); - return -1; - } - return 0; + return platform_driver_register(&kim_platform_driver); } static void __exit st_kim_deinit(void) { - /* the following returns void */ platform_driver_unregister(&kim_platform_driver); } diff --git a/include/linux/ti_wilink_st.h b/include/linux/ti_wilink_st.h index 1674ca7ab86d..010cda7287a0 100644 --- a/include/linux/ti_wilink_st.h +++ b/include/linux/ti_wilink_st.h @@ -206,8 +206,8 @@ void gps_chrdrv_stub_init(void); /* time in msec to wait for * line discipline to be installed */ -#define LDISC_TIME 500 -#define CMD_RESP_TIME 500 +#define LDISC_TIME 1000 +#define CMD_RESP_TIME 800 #define MAKEWORD(a, b) ((unsigned short)(((unsigned char)(a)) \ | ((unsigned short)((unsigned char)(b))) << 8)) @@ -230,6 +230,7 @@ struct chip_version { unsigned short maj_ver; }; +#define UART_DEV_NAME_LEN 32 /** * struct kim_data_s - the KIM internal data, embedded as the * platform's drv data. One for each ST device in the system. @@ -271,6 +272,10 @@ struct kim_data_s { enum proto_type rf_protos[ST_MAX_CHANNELS]; struct st_data_s *core_data; struct chip_version version; + unsigned char ldisc_install; + unsigned char dev_name[UART_DEV_NAME_LEN]; + unsigned char flow_cntrl; + unsigned long baud_rate; }; /** @@ -413,4 +418,14 @@ struct gps_event_hdr { u16 plen; } __attribute__ ((packed)); +/* platform data */ +struct ti_st_plat_data { + long gpios[ST_MAX_CHANNELS]; /* BT, FM and GPS */ + unsigned char dev_name[UART_DEV_NAME_LEN]; /* uart name */ + unsigned char flow_cntrl; /* flow control flag */ + unsigned long baud_rate; + int (*suspend)(struct platform_device *, pm_message_t); + int (*resume)(struct platform_device *); +}; + #endif /* TI_WILINK_ST_H */ -- cgit v1.2.3 From 704426649dd4324b34cefea322f4333e5280f852 Mon Sep 17 00:00:00 2001 From: Pavan Savoy Date: Fri, 4 Feb 2011 02:23:11 -0600 Subject: drivers:misc: ti-st: fix error codes set-right the error codes that the shared transport driver returns. Instead of magic numbers like -1, return relevant codes such as ETIMEDOUT or EIO, EAGAIN when wait times out or uart write bytes don't match expected value or when registration fails and needs to be attempted again. Signed-off-by: Pavan Savoy Signed-off-by: Greg Kroah-Hartman --- drivers/misc/ti-st/st_core.c | 31 ++++++++++++++----------------- drivers/misc/ti-st/st_kim.c | 18 +++++++++--------- drivers/misc/ti-st/st_ll.c | 2 +- 3 files changed, 24 insertions(+), 27 deletions(-) (limited to 'drivers/misc/ti-st/st_kim.c') diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c index 84d73c5cb74d..79d2dc3fca1f 100644 --- a/drivers/misc/ti-st/st_core.c +++ b/drivers/misc/ti-st/st_core.c @@ -65,7 +65,7 @@ int st_int_write(struct st_data_s *st_gdata, struct tty_struct *tty; if (unlikely(st_gdata == NULL || st_gdata->tty == NULL)) { pr_err("tty unavailable to perform write"); - return -1; + return -EINVAL; } tty = st_gdata->tty; #ifdef VERBOSE @@ -124,9 +124,15 @@ void st_reg_complete(struct st_data_s *st_gdata, char err) pr_info(" %s ", __func__); for (i = 0; i < ST_MAX_CHANNELS; i++) { if (likely(st_gdata != NULL && st_gdata->list[i] != NULL && - st_gdata->list[i]->reg_complete_cb != NULL)) + st_gdata->list[i]->reg_complete_cb != NULL)) { st_gdata->list[i]->reg_complete_cb (st_gdata->list[i]->priv_data, err); + pr_info("protocol %d's cb sent %d\n", i, err); + if (err) { /* cleanup registered protocol */ + st_gdata->protos_registered--; + st_gdata->list[i] = NULL; + } + } } } @@ -457,15 +463,7 @@ long st_register(struct st_proto_s *new_proto) if (st_gdata == NULL || new_proto == NULL || new_proto->recv == NULL || new_proto->reg_complete_cb == NULL) { pr_err("gdata/new_proto/recv or reg_complete_cb not ready"); - if (st_gdata == NULL) - pr_err("error 1\n"); - if (new_proto == NULL) - pr_err("error 2\n"); - if (new_proto->recv == NULL) - pr_err("error 3\n"); - if (new_proto->reg_complete_cb == NULL) - pr_err("erro 4\n"); - return -1; + return -EINVAL; } if (new_proto->chnl_id >= ST_MAX_CHANNELS) { @@ -512,10 +510,9 @@ long st_register(struct st_proto_s *new_proto) if ((st_gdata->protos_registered != ST_EMPTY) && (test_bit(ST_REG_PENDING, &st_gdata->st_state))) { pr_err(" KIM failure complete callback "); - st_reg_complete(st_gdata, -1); + st_reg_complete(st_gdata, err); } - - return -1; + return -EINVAL; } /* the chnl_id might require other gpios to be toggled @@ -634,14 +631,14 @@ long st_write(struct sk_buff *skb) if (unlikely(skb == NULL || st_gdata == NULL || st_gdata->tty == NULL)) { pr_err("data/tty unavailable to perform write"); - return -1; + return -EINVAL; } #ifdef DEBUG /* open-up skb to read the 1st byte */ chnl_id = skb->data[0]; if (unlikely(st_gdata->list[chnl_id] == NULL)) { pr_err(" chnl_id %d not registered, and writing? ", chnl_id); - return -1; + return -EINVAL; } #endif pr_debug("%d to be written", skb->len); @@ -829,7 +826,7 @@ int st_core_init(struct st_data_s **core_data) err = tty_unregister_ldisc(N_TI_WL); if (err) pr_err("unable to un-register ldisc"); - return -1; + return err; } *core_data = st_gdata; return 0; diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c index a7fda8141758..ccc46a7b0abb 100644 --- a/drivers/misc/ti-st/st_kim.c +++ b/drivers/misc/ti-st/st_kim.c @@ -201,13 +201,13 @@ static long read_local_version(struct kim_data_s *kim_gdata, char *bts_scr_name) INIT_COMPLETION(kim_gdata->kim_rcvd); if (4 != st_int_write(kim_gdata->core_data, read_ver_cmd, 4)) { pr_err("kim: couldn't write 4 bytes"); - return -1; + return -EIO; } if (!wait_for_completion_timeout (&kim_gdata->kim_rcvd, msecs_to_jiffies(CMD_RESP_TIME))) { pr_err(" waiting for ver info- timed out "); - return -1; + return -ETIMEDOUT; } version = @@ -257,7 +257,7 @@ static long download_firmware(struct kim_data_s *kim_gdata) (kim_gdata->fw_entry->size == 0))) { pr_err(" request_firmware failed(errno %ld) for %s", err, bts_scr_name); - return -1; + return -EINVAL; } ptr = (void *)kim_gdata->fw_entry->data; len = kim_gdata->fw_entry->size; @@ -292,7 +292,7 @@ static long download_firmware(struct kim_data_s *kim_gdata) ((struct bts_action *)ptr)->size); if (unlikely(err < 0)) { release_firmware(kim_gdata->fw_entry); - return -1; + return err; } if (!wait_for_completion_timeout (&kim_gdata->kim_rcvd, @@ -301,7 +301,7 @@ static long download_firmware(struct kim_data_s *kim_gdata) (" response timeout during fw download "); /* timed out */ release_firmware(kim_gdata->fw_entry); - return -1; + return -ETIMEDOUT; } break; case ACTION_DELAY: /* sleep */ @@ -436,7 +436,7 @@ long st_kim_start(void *kim_data) pr_info("ldisc_install = 0"); sysfs_notify(&kim_gdata->kim_pdev->dev.kobj, NULL, "install"); - err = -1; + err = -ETIMEDOUT; continue; } else { /* ldisc installed now */ @@ -482,7 +482,7 @@ long st_kim_stop(void *kim_data) msecs_to_jiffies(LDISC_TIME)); if (!err) { /* timeout */ pr_err(" timed out waiting for ldisc to be un-installed"); - return -1; + return -ETIMEDOUT; } /* By default configure BT nShutdown to LOW state */ @@ -642,7 +642,7 @@ static int kim_probe(struct platform_device *pdev) status = st_core_init(&kim_gdata->core_data); if (status != 0) { pr_err(" ST core init failed"); - return -1; + return -EIO; } /* refer to itself */ kim_gdata->core_data->kim_data = kim_gdata; @@ -704,7 +704,7 @@ static int kim_probe(struct platform_device *pdev) if (IS_ERR(kim_debugfs_dir)) { pr_err(" debugfs entries creation failed "); kim_debugfs_dir = NULL; - return -1; + return -EIO; } debugfs_create_file("version", S_IRUGO, kim_debugfs_dir, diff --git a/drivers/misc/ti-st/st_ll.c b/drivers/misc/ti-st/st_ll.c index 2bda8dea15b0..f72de6b8c343 100644 --- a/drivers/misc/ti-st/st_ll.c +++ b/drivers/misc/ti-st/st_ll.c @@ -130,7 +130,7 @@ unsigned long st_ll_sleep_state(struct st_data_s *st_data, break; default: pr_err(" unknown input/state "); - return -1; + return -EINVAL; } return 0; } -- cgit v1.2.3 From ef04d121f030329aae0c2d3ec22beea0c5cbcfd3 Mon Sep 17 00:00:00 2001 From: Pavan Savoy Date: Fri, 4 Feb 2011 02:23:13 -0600 Subject: drivers:misc: ti-st: firmware download optimization To fasten the process of firmware download, the chip allows disabling of the command complete event generation from host. In these cases, only few very essential commands would have the command complete events and hence the wait associated with them. So now the driver would wait for a command complete event, only when it comes across a wait event during firmware parsing. This would also mean we need to skip not just the change baud rate command but also the wait for it. Signed-off-by: Pavan Savoy Signed-off-by: Greg Kroah-Hartman --- drivers/misc/ti-st/st_core.c | 18 ++++++++++ drivers/misc/ti-st/st_kim.c | 80 ++++++++++++++++++++++++++++++++++++++++---- include/linux/ti_wilink_st.h | 6 ++++ 3 files changed, 97 insertions(+), 7 deletions(-) (limited to 'drivers/misc/ti-st/st_kim.c') diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c index f7bb96f3a424..dd2c879faff6 100644 --- a/drivers/misc/ti-st/st_core.c +++ b/drivers/misc/ti-st/st_core.c @@ -52,6 +52,24 @@ static void remove_channel_from_table(struct st_data_s *st_gdata, st_gdata->list[proto->chnl_id] = NULL; } +/* + * called from KIM during firmware download. + * + * This is a wrapper function to tty->ops->write_room. + * It returns number of free space available in + * uart tx buffer. + */ +int st_get_uart_wr_room(struct st_data_s *st_gdata) +{ + struct tty_struct *tty; + if (unlikely(st_gdata == NULL || st_gdata->tty == NULL)) { + pr_err("tty unavailable to perform write"); + return -1; + } + tty = st_gdata->tty; + return tty->ops->write_room(tty); +} + /* can be called in from * -- KIM (during fw download) * -- ST Core (during st_write) diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c index ccc46a7b0abb..2c096ccd53b0 100644 --- a/drivers/misc/ti-st/st_kim.c +++ b/drivers/misc/ti-st/st_kim.c @@ -232,6 +232,26 @@ static long read_local_version(struct kim_data_s *kim_gdata, char *bts_scr_name) return 0; } +void skip_change_remote_baud(unsigned char **ptr, long *len) +{ + unsigned char *nxt_action, *cur_action; + cur_action = *ptr; + + nxt_action = cur_action + sizeof(struct bts_action) + + ((struct bts_action *) cur_action)->size; + + if (((struct bts_action *) nxt_action)->type != ACTION_WAIT_EVENT) { + pr_err("invalid action after change remote baud command"); + } else { + *ptr = *ptr + sizeof(struct bts_action) + + ((struct bts_action *)nxt_action)->size; + *len = *len - (sizeof(struct bts_action) + + ((struct bts_action *)nxt_action)->size); + /* warn user on not commenting these in firmware */ + pr_warn("skipping the wait event of change remote baud"); + } +} + /** * download_firmware - * internal function which parses through the .bts firmware @@ -244,6 +264,9 @@ static long download_firmware(struct kim_data_s *kim_gdata) unsigned char *ptr = NULL; unsigned char *action_ptr = NULL; unsigned char bts_scr_name[30] = { 0 }; /* 30 char long bts scr name? */ + int wr_room_space; + int cmd_size; + unsigned long timeout; err = read_local_version(kim_gdata, bts_scr_name); if (err != 0) { @@ -280,13 +303,43 @@ static long download_firmware(struct kim_data_s *kim_gdata) 0xFF36)) { /* ignore remote change * baud rate HCI VS command */ - pr_err - (" change remote baud" + pr_warn("change remote baud" " rate command in firmware"); + skip_change_remote_baud(&ptr, &len); break; } + /* + * Make sure we have enough free space in uart + * tx buffer to write current firmware command + */ + cmd_size = ((struct bts_action *)ptr)->size; + timeout = jiffies + msecs_to_jiffies(CMD_WR_TIME); + do { + wr_room_space = + st_get_uart_wr_room(kim_gdata->core_data); + if (wr_room_space < 0) { + pr_err("Unable to get free " + "space info from uart tx buffer"); + release_firmware(kim_gdata->fw_entry); + return wr_room_space; + } + mdelay(1); /* wait 1ms before checking room */ + } while ((wr_room_space < cmd_size) && + time_before(jiffies, timeout)); + + /* Timeout happened ? */ + if (time_after_eq(jiffies, timeout)) { + pr_err("Timeout while waiting for free " + "free space in uart tx buffer"); + release_firmware(kim_gdata->fw_entry); + return -ETIMEDOUT; + } - INIT_COMPLETION(kim_gdata->kim_rcvd); + /* + * Free space found in uart buffer, call st_int_write + * to send current firmware command to the uart tx + * buffer. + */ err = st_int_write(kim_gdata->core_data, ((struct bts_action_send *)action_ptr)->data, ((struct bts_action *)ptr)->size); @@ -294,15 +347,28 @@ static long download_firmware(struct kim_data_s *kim_gdata) release_firmware(kim_gdata->fw_entry); return err; } + /* + * Check number of bytes written to the uart tx buffer + * and requested command write size + */ + if (err != cmd_size) { + pr_err("Number of bytes written to uart " + "tx buffer are not matching with " + "requested cmd write size"); + release_firmware(kim_gdata->fw_entry); + return -EIO; + } + break; + case ACTION_WAIT_EVENT: /* wait */ if (!wait_for_completion_timeout - (&kim_gdata->kim_rcvd, - msecs_to_jiffies(CMD_RESP_TIME))) { - pr_err - (" response timeout during fw download "); + (&kim_gdata->kim_rcvd, + msecs_to_jiffies(CMD_RESP_TIME))) { + pr_err("response timeout during fw download "); /* timed out */ release_firmware(kim_gdata->fw_entry); return -ETIMEDOUT; } + INIT_COMPLETION(kim_gdata->kim_rcvd); break; case ACTION_DELAY: /* sleep */ pr_info("sleep command in scr"); diff --git a/include/linux/ti_wilink_st.h b/include/linux/ti_wilink_st.h index 010cda7287a0..7885a779c588 100644 --- a/include/linux/ti_wilink_st.h +++ b/include/linux/ti_wilink_st.h @@ -166,6 +166,11 @@ struct st_data_s { void *kim_data; }; +/* + * wrapper around tty->ops->write_room to check + * availability during firmware download + */ +int st_get_uart_wr_room(struct st_data_s *st_gdata); /** * st_int_write - * point this to tty->driver->write or tty->ops->write @@ -208,6 +213,7 @@ void gps_chrdrv_stub_init(void); */ #define LDISC_TIME 1000 #define CMD_RESP_TIME 800 +#define CMD_WR_TIME 5000 #define MAKEWORD(a, b) ((unsigned short)(((unsigned char)(a)) \ | ((unsigned short)((unsigned char)(b))) << 8)) -- cgit v1.2.3 From 781a7395d239dbdb59738ca7fe08e71641bf583c Mon Sep 17 00:00:00 2001 From: Pavan Savoy Date: Fri, 4 Feb 2011 02:23:15 -0600 Subject: drivers:misc: ti-st: remove multiple gpio handling TI shared transport driver previously intended to expose rfkill entries for each of the protocol gpio that the chip would have. However now in case such gpios exist, which requires to be enabled for a specific protocol, the responsibility lay on protocol driver. This patch removes the request/free of multiple gpios, rfkill struct references and also removes the chip_toggle function. Signed-off-by: Pavan Savoy Signed-off-by: Greg Kroah-Hartman --- drivers/misc/ti-st/st_core.c | 11 ---- drivers/misc/ti-st/st_kim.c | 117 +++++++++---------------------------------- include/linux/ti_wilink_st.h | 19 +------ 3 files changed, 26 insertions(+), 121 deletions(-) (limited to 'drivers/misc/ti-st/st_kim.c') diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c index f0d24d852078..1847c477c0c0 100644 --- a/drivers/misc/ti-st/st_core.c +++ b/drivers/misc/ti-st/st_core.c @@ -515,7 +515,6 @@ long st_register(struct st_proto_s *new_proto) if (test_bit(ST_REG_IN_PROGRESS, &st_gdata->st_state)) { pr_info(" ST_REG_IN_PROGRESS:%d ", new_proto->chnl_id); /* fw download in progress */ - st_kim_chip_toggle(new_proto->chnl_id, KIM_GPIO_ACTIVE); add_channel_to_table(st_gdata, new_proto); st_gdata->protos_registered++; @@ -548,10 +547,6 @@ long st_register(struct st_proto_s *new_proto) return -EINVAL; } - /* the chnl_id might require other gpios to be toggled - */ - st_kim_chip_toggle(new_proto->chnl_id, KIM_GPIO_ACTIVE); - clear_bit(ST_REG_IN_PROGRESS, &st_gdata->st_state); st_recv = st_int_recv; @@ -622,12 +617,6 @@ long st_unregister(struct st_proto_s *proto) st_gdata->protos_registered--; remove_channel_from_table(st_gdata, proto); - - /* kim ignores BT in the below function - * and handles the rest, BT is toggled - * only in kim_start and kim_stop - */ - st_kim_chip_toggle(proto->chnl_id, KIM_GPIO_INACTIVE); spin_unlock_irqrestore(&st_gdata->lock, flags); if ((st_gdata->protos_registered == ST_EMPTY) && diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c index 2c096ccd53b0..9ee4c788aa69 100644 --- a/drivers/misc/ti-st/st_kim.c +++ b/drivers/misc/ti-st/st_kim.c @@ -390,49 +390,6 @@ static long download_firmware(struct kim_data_s *kim_gdata) /**********************************************************************/ /* functions called from ST core */ -/* function to toggle the GPIO - * needs to know whether the GPIO is active high or active low - */ -void st_kim_chip_toggle(enum proto_type type, enum kim_gpio_state state) -{ - struct platform_device *kim_pdev; - struct kim_data_s *kim_gdata; - pr_info(" %s ", __func__); - - kim_pdev = st_get_plat_device(0); - kim_gdata = dev_get_drvdata(&kim_pdev->dev); - - if (kim_gdata->gpios[type] == -1) { - pr_info("gpio not requested for protocol %d", type); - return; - } - switch (type) { - case ST_BT: - /*Do Nothing */ - break; - - case ST_FM: - if (state == KIM_GPIO_ACTIVE) - gpio_set_value(kim_gdata->gpios[ST_FM], GPIO_LOW); - else - gpio_set_value(kim_gdata->gpios[ST_FM], GPIO_HIGH); - break; - - case ST_GPS: - if (state == KIM_GPIO_ACTIVE) - gpio_set_value(kim_gdata->gpios[ST_GPS], GPIO_HIGH); - else - gpio_set_value(kim_gdata->gpios[ST_GPS], GPIO_LOW); - break; - - case ST_MAX_CHANNELS: - default: - break; - } - - return; -} - /* called from ST Core, when REG_IN_PROGRESS (registration in progress) * can be because of * 1. response to read local version @@ -482,9 +439,9 @@ long st_kim_start(void *kim_data) do { /* Configure BT nShutdown to HIGH state */ - gpio_set_value(kim_gdata->gpios[ST_BT], GPIO_LOW); + gpio_set_value(kim_gdata->nshutdown, GPIO_LOW); mdelay(5); /* FIXME: a proper toggle */ - gpio_set_value(kim_gdata->gpios[ST_BT], GPIO_HIGH); + gpio_set_value(kim_gdata->nshutdown, GPIO_HIGH); mdelay(100); /* re-initialize the completion */ INIT_COMPLETION(kim_gdata->ldisc_installed); @@ -552,11 +509,11 @@ long st_kim_stop(void *kim_data) } /* By default configure BT nShutdown to LOW state */ - gpio_set_value(kim_gdata->gpios[ST_BT], GPIO_LOW); + gpio_set_value(kim_gdata->nshutdown, GPIO_LOW); mdelay(1); - gpio_set_value(kim_gdata->gpios[ST_BT], GPIO_HIGH); + gpio_set_value(kim_gdata->nshutdown, GPIO_HIGH); mdelay(1); - gpio_set_value(kim_gdata->gpios[ST_BT], GPIO_LOW); + gpio_set_value(kim_gdata->nshutdown, GPIO_LOW); return err; } @@ -685,10 +642,8 @@ struct dentry *kim_debugfs_dir; static int kim_probe(struct platform_device *pdev) { long status; - long proto; struct kim_data_s *kim_gdata; struct ti_st_plat_data *pdata = pdev->dev.platform_data; - long *gpios = pdata->gpios; if ((pdev->id != -1) && (pdev->id < MAX_ST_DEVICES)) { /* multiple devices could exist */ @@ -713,40 +668,19 @@ static int kim_probe(struct platform_device *pdev) /* refer to itself */ kim_gdata->core_data->kim_data = kim_gdata; - for (proto = 0; proto < ST_MAX_CHANNELS; proto++) { - kim_gdata->gpios[proto] = gpios[proto]; - pr_info(" %ld gpio to be requested", gpios[proto]); + /* Claim the chip enable nShutdown gpio from the system */ + kim_gdata->nshutdown = pdata->nshutdown_gpio; + status = gpio_request(kim_gdata->nshutdown, "kim"); + if (unlikely(status)) { + pr_err(" gpio %ld request failed ", kim_gdata->nshutdown); + return status; } - for (proto = 0; (proto < ST_MAX_CHANNELS) - && (gpios[proto] != -1); proto++) { - /* Claim the Bluetooth/FM/GPIO - * nShutdown gpio from the system - */ - status = gpio_request(gpios[proto], "kim"); - if (unlikely(status)) { - pr_err(" gpio %ld request failed ", gpios[proto]); - proto -= 1; - while (proto >= 0) { - if (gpios[proto] != -1) - gpio_free(gpios[proto]); - } - return status; - } - - /* Configure nShutdown GPIO as output=0 */ - status = - gpio_direction_output(gpios[proto], 0); - if (unlikely(status)) { - pr_err(" unable to configure gpio %ld", - gpios[proto]); - proto -= 1; - while (proto >= 0) { - if (gpios[proto] != -1) - gpio_free(gpios[proto]); - } - return status; - } + /* Configure nShutdown GPIO as output=0 */ + status = gpio_direction_output(kim_gdata->nshutdown, 0); + if (unlikely(status)) { + pr_err(" unable to configure gpio %ld", kim_gdata->nshutdown); + return status; } /* get reference of pdev for request_firmware */ @@ -785,23 +719,20 @@ static int kim_remove(struct platform_device *pdev) { /* free the GPIOs requested */ struct ti_st_plat_data *pdata = pdev->dev.platform_data; - long *gpios = pdata->gpios; - long proto; struct kim_data_s *kim_gdata; kim_gdata = dev_get_drvdata(&pdev->dev); - for (proto = 0; (proto < ST_MAX_CHANNELS) - && (gpios[proto] != -1); proto++) { - /* Claim the Bluetooth/FM/GPIO - * nShutdown gpio from the system - */ - gpio_free(gpios[proto]); - } - pr_info("kim: GPIO Freed"); - debugfs_remove_recursive(kim_debugfs_dir); + /* Free the Bluetooth/FM/GPIO + * nShutdown gpio from the system + */ + gpio_free(pdata->nshutdown_gpio); + pr_info("nshutdown GPIO Freed"); + debugfs_remove_recursive(kim_debugfs_dir); sysfs_remove_group(&pdev->dev.kobj, &uim_attr_grp); + pr_info("sysfs entries removed"); + kim_gdata->kim_pdev = NULL; st_core_exit(kim_gdata->core_data); diff --git a/include/linux/ti_wilink_st.h b/include/linux/ti_wilink_st.h index 7885a779c588..7071ec5d0118 100644 --- a/include/linux/ti_wilink_st.h +++ b/include/linux/ti_wilink_st.h @@ -25,15 +25,6 @@ #ifndef TI_WILINK_ST_H #define TI_WILINK_ST_H -/** - * enum kim_gpio_state - Few protocols such as FM have ACTIVE LOW - * gpio states for their chip/core enable gpios - */ -enum kim_gpio_state { - KIM_GPIO_INACTIVE, - KIM_GPIO_ACTIVE, -}; - /** * enum proto-type - The protocol on WiLink chips which share a * common physical interface like UART. @@ -252,14 +243,11 @@ struct chip_version { * the ldisc was properly installed. * @resp_buffer: data buffer for the .bts fw file name. * @fw_entry: firmware class struct to request/release the fw. - * @gpios: the list of core/chip enable gpios for BT, FM and GPS cores. * @rx_state: the rx state for kim's receive func during fw download. * @rx_count: the rx count for the kim's receive func during fw download. * @rx_skb: all of fw data might not come at once, and hence data storage for * whole of the fw response, only HCI_EVENTs and hence diff from ST's * response. - * @rfkill: rfkill data for each of the cores to be registered with rfkill. - * @rf_protos: proto types of the data registered with rfkill sub-system. * @core_data: ST core's data, which mainly is the tty's disc_data * @version: chip version available via a sysfs entry. * @@ -270,12 +258,10 @@ struct kim_data_s { struct completion kim_rcvd, ldisc_installed; char resp_buffer[30]; const struct firmware *fw_entry; - long gpios[ST_MAX_CHANNELS]; + long nshutdown; unsigned long rx_state; unsigned long rx_count; struct sk_buff *rx_skb; - struct rfkill *rfkill[ST_MAX_CHANNELS]; - enum proto_type rf_protos[ST_MAX_CHANNELS]; struct st_data_s *core_data; struct chip_version version; unsigned char ldisc_install; @@ -293,7 +279,6 @@ long st_kim_start(void *); long st_kim_stop(void *); void st_kim_recv(void *, const unsigned char *, long count); -void st_kim_chip_toggle(enum proto_type, enum kim_gpio_state); void st_kim_complete(void *); void kim_st_list_protocols(struct st_data_s *, void *); @@ -426,7 +411,7 @@ struct gps_event_hdr { /* platform data */ struct ti_st_plat_data { - long gpios[ST_MAX_CHANNELS]; /* BT, FM and GPS */ + long nshutdown_gpio; unsigned char dev_name[UART_DEV_NAME_LEN]; /* uart name */ unsigned char flow_cntrl; /* flow control flag */ unsigned long baud_rate; -- cgit v1.2.3