diff options
Diffstat (limited to 'drivers/usb/gadget/udc')
| -rw-r--r-- | drivers/usb/gadget/udc/Kconfig | 14 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/atmel_usba_udc.c | 236 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/atmel_usba_udc.h | 10 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/core.c | 45 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/fotg210-udc.c | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/fsl_qe_udc.c | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/fsl_udc_core.c | 12 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/fusb300_udc.c | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/goku_udc.c | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/gr_udc.c | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/m66592-udc.c | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/mv_u3d_core.c | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/mv_udc_core.c | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/net2272.c | 4 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/omap_udc.c | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/pxa27x_udc.c | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/r8a66597-udc.c | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/s3c-hsudc.c | 2 |
18 files changed, 281 insertions, 64 deletions
diff --git a/drivers/usb/gadget/udc/Kconfig b/drivers/usb/gadget/udc/Kconfig index 658b8da60915..4b69f28a9af9 100644 --- a/drivers/usb/gadget/udc/Kconfig +++ b/drivers/usb/gadget/udc/Kconfig @@ -60,6 +60,20 @@ config USB_ATMEL_USBA USBA is the integrated high-speed USB Device controller on the AT32AP700x, some AT91SAM9 and AT91CAP9 processors from Atmel. + The fifo_mode parameter is used to select endpoint allocation mode. + fifo_mode = 0 is used to let the driver autoconfigure the endpoints. + In this case 2 banks are allocated for isochronous endpoints and + only one bank is allocated for the rest of the endpoints. + + fifo_mode = 1 is a generic maximum fifo size (1024 bytes) configuration + allowing the usage of ep1 - ep6 + + fifo_mode = 2 is a generic performance maximum fifo size (1024 bytes) + configuration allowing the usage of ep1 - ep3 + + fifo_mode = 3 is a balanced performance configuration allowing the + the usage of ep1 - ep8 + config USB_BCM63XX_UDC tristate "Broadcom BCM63xx Peripheral Controller" depends on BCM63XX diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c index 12c7687216e6..11bbce28bc23 100644 --- a/drivers/usb/gadget/udc/atmel_usba_udc.c +++ b/drivers/usb/gadget/udc/atmel_usba_udc.c @@ -20,6 +20,7 @@ #include <linux/mfd/syscon.h> #include <linux/platform_device.h> #include <linux/regmap.h> +#include <linux/ctype.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> #include <linux/usb/atmel_usba_udc.h> @@ -318,6 +319,91 @@ static inline void usba_cleanup_debugfs(struct usba_udc *udc) } #endif +static ushort fifo_mode; + +/* "modprobe ... fifo_mode=1" etc */ +module_param(fifo_mode, ushort, 0x0); +MODULE_PARM_DESC(fifo_mode, "Endpoint configuration mode"); + +/* mode 0 - uses autoconfig */ + +/* mode 1 - fits in 8KB, generic max fifo configuration */ +static struct usba_fifo_cfg mode_1_cfg[] = { +{ .hw_ep_num = 0, .fifo_size = 64, .nr_banks = 1, }, +{ .hw_ep_num = 1, .fifo_size = 1024, .nr_banks = 2, }, +{ .hw_ep_num = 2, .fifo_size = 1024, .nr_banks = 1, }, +{ .hw_ep_num = 3, .fifo_size = 1024, .nr_banks = 1, }, +{ .hw_ep_num = 4, .fifo_size = 1024, .nr_banks = 1, }, +{ .hw_ep_num = 5, .fifo_size = 1024, .nr_banks = 1, }, +{ .hw_ep_num = 6, .fifo_size = 1024, .nr_banks = 1, }, +}; + +/* mode 2 - fits in 8KB, performance max fifo configuration */ +static struct usba_fifo_cfg mode_2_cfg[] = { +{ .hw_ep_num = 0, .fifo_size = 64, .nr_banks = 1, }, +{ .hw_ep_num = 1, .fifo_size = 1024, .nr_banks = 3, }, +{ .hw_ep_num = 2, .fifo_size = 1024, .nr_banks = 2, }, +{ .hw_ep_num = 3, .fifo_size = 1024, .nr_banks = 2, }, +}; + +/* mode 3 - fits in 8KB, mixed fifo configuration */ +static struct usba_fifo_cfg mode_3_cfg[] = { +{ .hw_ep_num = 0, .fifo_size = 64, .nr_banks = 1, }, +{ .hw_ep_num = 1, .fifo_size = 1024, .nr_banks = 2, }, +{ .hw_ep_num = 2, .fifo_size = 512, .nr_banks = 2, }, +{ .hw_ep_num = 3, .fifo_size = 512, .nr_banks = 2, }, +{ .hw_ep_num = 4, .fifo_size = 512, .nr_banks = 2, }, +{ .hw_ep_num = 5, .fifo_size = 512, .nr_banks = 2, }, +{ .hw_ep_num = 6, .fifo_size = 512, .nr_banks = 2, }, +}; + +/* mode 4 - fits in 8KB, custom fifo configuration */ +static struct usba_fifo_cfg mode_4_cfg[] = { +{ .hw_ep_num = 0, .fifo_size = 64, .nr_banks = 1, }, +{ .hw_ep_num = 1, .fifo_size = 512, .nr_banks = 2, }, +{ .hw_ep_num = 2, .fifo_size = 512, .nr_banks = 2, }, +{ .hw_ep_num = 3, .fifo_size = 8, .nr_banks = 2, }, +{ .hw_ep_num = 4, .fifo_size = 512, .nr_banks = 2, }, +{ .hw_ep_num = 5, .fifo_size = 512, .nr_banks = 2, }, +{ .hw_ep_num = 6, .fifo_size = 16, .nr_banks = 2, }, +{ .hw_ep_num = 7, .fifo_size = 8, .nr_banks = 2, }, +{ .hw_ep_num = 8, .fifo_size = 8, .nr_banks = 2, }, +}; +/* Add additional configurations here */ + +int usba_config_fifo_table(struct usba_udc *udc) +{ + int n; + + switch (fifo_mode) { + default: + fifo_mode = 0; + case 0: + udc->fifo_cfg = NULL; + n = 0; + break; + case 1: + udc->fifo_cfg = mode_1_cfg; + n = ARRAY_SIZE(mode_1_cfg); + break; + case 2: + udc->fifo_cfg = mode_2_cfg; + n = ARRAY_SIZE(mode_2_cfg); + break; + case 3: + udc->fifo_cfg = mode_3_cfg; + n = ARRAY_SIZE(mode_3_cfg); + break; + case 4: + udc->fifo_cfg = mode_4_cfg; + n = ARRAY_SIZE(mode_4_cfg); + break; + } + DBG(DBG_HW, "Setup fifo_mode %d\n", fifo_mode); + + return n; +} + static inline u32 usba_int_enb_get(struct usba_udc *udc) { return udc->int_enb_cache; @@ -543,24 +629,17 @@ usba_ep_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) ep->is_isoc = 0; ep->is_in = 0; - if (maxpacket <= 8) - ept_cfg = USBA_BF(EPT_SIZE, USBA_EPT_SIZE_8); - else - /* LSB is bit 1, not 0 */ - ept_cfg = USBA_BF(EPT_SIZE, fls(maxpacket - 1) - 3); - - DBG(DBG_HW, "%s: EPT_SIZE = %lu (maxpacket = %lu)\n", + DBG(DBG_ERR, "%s: EPT_CFG = 0x%lx (maxpacket = %lu)\n", ep->ep.name, ept_cfg, maxpacket); if (usb_endpoint_dir_in(desc)) { ep->is_in = 1; - ept_cfg |= USBA_EPT_DIR_IN; + ep->ept_cfg |= USBA_EPT_DIR_IN; } switch (usb_endpoint_type(desc)) { case USB_ENDPOINT_XFER_CONTROL: - ept_cfg |= USBA_BF(EPT_TYPE, USBA_EPT_TYPE_CONTROL); - ept_cfg |= USBA_BF(BK_NUMBER, USBA_BK_NUMBER_ONE); + ep->ept_cfg |= USBA_BF(EPT_TYPE, USBA_EPT_TYPE_CONTROL); break; case USB_ENDPOINT_XFER_ISOC: if (!ep->can_isoc) { @@ -578,24 +657,15 @@ usba_ep_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) return -EINVAL; ep->is_isoc = 1; - ept_cfg |= USBA_BF(EPT_TYPE, USBA_EPT_TYPE_ISO); + ep->ept_cfg |= USBA_BF(EPT_TYPE, USBA_EPT_TYPE_ISO); + ep->ept_cfg |= USBA_BF(NB_TRANS, nr_trans); - /* - * Do triple-buffering on high-bandwidth iso endpoints. - */ - if (nr_trans > 1 && ep->nr_banks == 3) - ept_cfg |= USBA_BF(BK_NUMBER, USBA_BK_NUMBER_TRIPLE); - else - ept_cfg |= USBA_BF(BK_NUMBER, USBA_BK_NUMBER_DOUBLE); - ept_cfg |= USBA_BF(NB_TRANS, nr_trans); break; case USB_ENDPOINT_XFER_BULK: - ept_cfg |= USBA_BF(EPT_TYPE, USBA_EPT_TYPE_BULK); - ept_cfg |= USBA_BF(BK_NUMBER, USBA_BK_NUMBER_DOUBLE); + ep->ept_cfg |= USBA_BF(EPT_TYPE, USBA_EPT_TYPE_BULK); break; case USB_ENDPOINT_XFER_INT: - ept_cfg |= USBA_BF(EPT_TYPE, USBA_EPT_TYPE_INT); - ept_cfg |= USBA_BF(BK_NUMBER, USBA_BK_NUMBER_DOUBLE); + ep->ept_cfg |= USBA_BF(EPT_TYPE, USBA_EPT_TYPE_INT); break; } @@ -604,7 +674,7 @@ usba_ep_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) ep->ep.desc = desc; ep->ep.maxpacket = maxpacket; - usba_ep_writel(ep, CFG, ept_cfg); + usba_ep_writel(ep, CFG, ep->ept_cfg); usba_ep_writel(ep, CTL_ENB, USBA_EPT_ENABLE); if (ep->can_dma) { @@ -1006,12 +1076,81 @@ static int atmel_usba_start(struct usb_gadget *gadget, struct usb_gadget_driver *driver); static int atmel_usba_stop(struct usb_gadget *gadget); +static struct usb_ep *atmel_usba_match_ep( + struct usb_gadget *gadget, + struct usb_endpoint_descriptor *desc, + struct usb_ss_ep_comp_descriptor *ep_comp +) +{ + struct usb_ep *_ep; + struct usba_ep *ep; + + /* Look at endpoints until an unclaimed one looks usable */ + list_for_each_entry(_ep, &gadget->ep_list, ep_list) { + if (usb_gadget_ep_match_desc(gadget, _ep, desc, ep_comp)) + goto found_ep; + } + /* Fail */ + return NULL; + +found_ep: + + if (fifo_mode == 0) { + /* Optimize hw fifo size based on ep type and other info */ + ep = to_usba_ep(_ep); + + switch (usb_endpoint_type(desc)) { + + case USB_ENDPOINT_XFER_CONTROL: + break; + + case USB_ENDPOINT_XFER_ISOC: + ep->fifo_size = 1024; + ep->nr_banks = 2; + break; + + case USB_ENDPOINT_XFER_BULK: + ep->fifo_size = 512; + ep->nr_banks = 1; + break; + + case USB_ENDPOINT_XFER_INT: + if (desc->wMaxPacketSize == 0) + ep->fifo_size = + roundup_pow_of_two(_ep->maxpacket_limit); + else + ep->fifo_size = + roundup_pow_of_two(le16_to_cpu(desc->wMaxPacketSize)); + ep->nr_banks = 1; + break; + } + + /* It might be a little bit late to set this */ + usb_ep_set_maxpacket_limit(&ep->ep, ep->fifo_size); + + /* Generate ept_cfg basd on FIFO size and number of banks */ + if (ep->fifo_size <= 8) + ep->ept_cfg = USBA_BF(EPT_SIZE, USBA_EPT_SIZE_8); + else + /* LSB is bit 1, not 0 */ + ep->ept_cfg = + USBA_BF(EPT_SIZE, fls(ep->fifo_size - 1) - 3); + + ep->ept_cfg |= USBA_BF(BK_NUMBER, ep->nr_banks); + + ep->udc->configured_ep++; + } + +return _ep; +} + static const struct usb_gadget_ops usba_udc_ops = { .get_frame = usba_udc_get_frame, .wakeup = usba_udc_wakeup, .set_selfpowered = usba_udc_set_selfpowered, .udc_start = atmel_usba_start, .udc_stop = atmel_usba_stop, + .match_ep = atmel_usba_match_ep, }; static struct usb_endpoint_descriptor usba_ep0_desc = { @@ -1678,7 +1817,8 @@ static irqreturn_t usba_udc_irq(int irq, void *devid) } if (status & USBA_END_OF_RESET) { - struct usba_ep *ep0; + struct usba_ep *ep0, *ep; + int i, n; usba_writel(udc, INT_CLR, USBA_END_OF_RESET); generate_bias_pulse(udc); @@ -1717,6 +1857,16 @@ static irqreturn_t usba_udc_irq(int irq, void *devid) if (!(usba_ep_readl(ep0, CFG) & USBA_EPT_MAPPED)) dev_dbg(&udc->pdev->dev, "ODD: EP0 configuration is invalid!\n"); + + /* Preallocate other endpoints */ + n = fifo_mode ? udc->num_ep : udc->configured_ep; + for (i = 1; i < n; i++) { + ep = &udc->usba_ep[i]; + usba_ep_writel(ep, CFG, ep->ept_cfg); + if (!(usba_ep_readl(ep, CFG) & USBA_EPT_MAPPED)) + dev_dbg(&udc->pdev->dev, + "ODD: EP%d configuration is invalid!\n", i); + } } spin_unlock(&udc->lock); @@ -1864,6 +2014,9 @@ static int atmel_usba_stop(struct usb_gadget *gadget) if (gpio_is_valid(udc->vbus_pin)) disable_irq(gpio_to_irq(udc->vbus_pin)); + if (fifo_mode == 0) + udc->configured_ep = 1; + usba_stop(udc); udc->driver = NULL; @@ -1931,9 +2084,13 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev, &flags); udc->vbus_pin_inverted = (flags & OF_GPIO_ACTIVE_LOW) ? 1 : 0; - pp = NULL; - while ((pp = of_get_next_child(np, pp))) - udc->num_ep++; + if (fifo_mode == 0) { + pp = NULL; + while ((pp = of_get_next_child(np, pp))) + udc->num_ep++; + udc->configured_ep = 1; + } else + udc->num_ep = usba_config_fifo_table(udc); eps = devm_kzalloc(&pdev->dev, sizeof(struct usba_ep) * udc->num_ep, GFP_KERNEL); @@ -1946,7 +2103,7 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev, pp = NULL; i = 0; - while ((pp = of_get_next_child(np, pp))) { + while ((pp = of_get_next_child(np, pp)) && i < udc->num_ep) { ep = &eps[i]; ret = of_property_read_u32(pp, "reg", &val); @@ -1954,21 +2111,21 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev, dev_err(&pdev->dev, "of_probe: reg error(%d)\n", ret); goto err; } - ep->index = val; + ep->index = fifo_mode ? udc->fifo_cfg[i].hw_ep_num : val; ret = of_property_read_u32(pp, "atmel,fifo-size", &val); if (ret) { dev_err(&pdev->dev, "of_probe: fifo-size error(%d)\n", ret); goto err; } - ep->fifo_size = val; + ep->fifo_size = fifo_mode ? udc->fifo_cfg[i].fifo_size : val; ret = of_property_read_u32(pp, "atmel,nb-banks", &val); if (ret) { dev_err(&pdev->dev, "of_probe: nb-banks error(%d)\n", ret); goto err; } - ep->nr_banks = val; + ep->nr_banks = fifo_mode ? udc->fifo_cfg[i].nr_banks : val; ep->can_dma = of_property_read_bool(pp, "atmel,can-dma"); ep->can_isoc = of_property_read_bool(pp, "atmel,can-isoc"); @@ -2000,6 +2157,21 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev, ep->ep.caps.dir_in = true; ep->ep.caps.dir_out = true; + if (fifo_mode != 0) { + /* + * Generate ept_cfg based on FIFO size and + * banks number + */ + if (ep->fifo_size <= 8) + ep->ept_cfg = USBA_BF(EPT_SIZE, USBA_EPT_SIZE_8); + else + /* LSB is bit 1, not 0 */ + ep->ept_cfg = + USBA_BF(EPT_SIZE, fls(ep->fifo_size - 1) - 3); + + ep->ept_cfg |= USBA_BF(BK_NUMBER, ep->nr_banks); + } + if (i) list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list); diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.h b/drivers/usb/gadget/udc/atmel_usba_udc.h index b03b2ebfc53a..9551b704bfd3 100644 --- a/drivers/usb/gadget/udc/atmel_usba_udc.h +++ b/drivers/usb/gadget/udc/atmel_usba_udc.h @@ -275,6 +275,12 @@ struct usba_dma_desc { u32 ctrl; }; +struct usba_fifo_cfg { + u8 hw_ep_num; + u16 fifo_size; + u8 nr_banks; +}; + struct usba_ep { int state; void __iomem *ep_regs; @@ -293,7 +299,7 @@ struct usba_ep { unsigned int can_isoc:1; unsigned int is_isoc:1; unsigned int is_in:1; - + unsigned long ept_cfg; #ifdef CONFIG_USB_GADGET_DEBUG_FS u32 last_dma_status; struct dentry *debugfs_dir; @@ -338,6 +344,8 @@ struct usba_udc { int vbus_pin; int vbus_pin_inverted; int num_ep; + int configured_ep; + struct usba_fifo_cfg *fifo_cfg; struct clk *pclk; struct clk *hclk; struct usba_ep *usba_ep; diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c index 0402177f93cd..d685d82dcf48 100644 --- a/drivers/usb/gadget/udc/core.c +++ b/drivers/usb/gadget/udc/core.c @@ -1080,6 +1080,24 @@ static void usb_udc_nop_release(struct device *dev) dev_vdbg(dev, "%s\n", __func__); } +/* should be called with udc_lock held */ +static int check_pending_gadget_drivers(struct usb_udc *udc) +{ + struct usb_gadget_driver *driver; + int ret = 0; + + list_for_each_entry(driver, &gadget_driver_pending_list, pending) + if (!driver->udc_name || strcmp(driver->udc_name, + dev_name(&udc->dev)) == 0) { + ret = udc_bind_to_driver(udc, driver); + if (ret != -EPROBE_DEFER) + list_del(&driver->pending); + break; + } + + return ret; +} + /** * usb_add_gadget_udc_release - adds a new gadget to the udc class driver list * @parent: the parent device to this udc. Usually the controller driver's @@ -1093,7 +1111,6 @@ int usb_add_gadget_udc_release(struct device *parent, struct usb_gadget *gadget, void (*release)(struct device *dev)) { struct usb_udc *udc; - struct usb_gadget_driver *driver; int ret = -ENOMEM; udc = kzalloc(sizeof(*udc), GFP_KERNEL); @@ -1136,17 +1153,9 @@ int usb_add_gadget_udc_release(struct device *parent, struct usb_gadget *gadget, udc->vbus = true; /* pick up one of pending gadget drivers */ - list_for_each_entry(driver, &gadget_driver_pending_list, pending) { - if (!driver->udc_name || strcmp(driver->udc_name, - dev_name(&udc->dev)) == 0) { - ret = udc_bind_to_driver(udc, driver); - if (ret != -EPROBE_DEFER) - list_del(&driver->pending); - if (ret) - goto err5; - break; - } - } + ret = check_pending_gadget_drivers(udc); + if (ret) + goto err5; mutex_unlock(&udc_lock); @@ -1356,14 +1365,22 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) return -EINVAL; mutex_lock(&udc_lock); - list_for_each_entry(udc, &udc_list, list) + list_for_each_entry(udc, &udc_list, list) { if (udc->driver == driver) { usb_gadget_remove_driver(udc); usb_gadget_set_state(udc->gadget, - USB_STATE_NOTATTACHED); + USB_STATE_NOTATTACHED); + + /* Maybe there is someone waiting for this UDC? */ + check_pending_gadget_drivers(udc); + /* + * For now we ignore bind errors as probably it's + * not a valid reason to fail other's gadget unbind + */ ret = 0; break; } + } if (ret) { list_del(&driver->pending); diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c index f40b3916d274..78d0204e3e20 100644 --- a/drivers/usb/gadget/udc/fotg210-udc.c +++ b/drivers/usb/gadget/udc/fotg210-udc.c @@ -527,7 +527,7 @@ static void fotg210_ep_fifo_flush(struct usb_ep *_ep) { } -static struct usb_ep_ops fotg210_ep_ops = { +static const struct usb_ep_ops fotg210_ep_ops = { .enable = fotg210_ep_enable, .disable = fotg210_ep_disable, diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.c b/drivers/usb/gadget/udc/fsl_qe_udc.c index 4fff51b8a18e..303328ce59ee 100644 --- a/drivers/usb/gadget/udc/fsl_qe_udc.c +++ b/drivers/usb/gadget/udc/fsl_qe_udc.c @@ -1847,7 +1847,7 @@ out: return status; } -static struct usb_ep_ops qe_ep_ops = { +static const struct usb_ep_ops qe_ep_ops = { .enable = qe_ep_enable, .disable = qe_ep_disable, diff --git a/drivers/usb/gadget/udc/fsl_udc_core.c b/drivers/usb/gadget/udc/fsl_udc_core.c index 71094e479a96..2e41ef36b944 100644 --- a/drivers/usb/gadget/udc/fsl_udc_core.c +++ b/drivers/usb/gadget/udc/fsl_udc_core.c @@ -1118,7 +1118,7 @@ static void fsl_ep_fifo_flush(struct usb_ep *_ep) } while (fsl_readl(&dr_regs->endptstatus) & bits); } -static struct usb_ep_ops fsl_ep_ops = { +static const struct usb_ep_ops fsl_ep_ops = { .enable = fsl_ep_enable, .disable = fsl_ep_disable, @@ -1248,6 +1248,12 @@ static const struct usb_gadget_ops fsl_gadget_ops = { .udc_stop = fsl_udc_stop, }; +/* + * Empty complete function used by this driver to fill in the req->complete + * field when creating a request since the complete field is mandatory. + */ +static void fsl_noop_complete(struct usb_ep *ep, struct usb_request *req) { } + /* Set protocol stall on ep0, protocol stall will automatically be cleared on new transaction */ static void ep0stall(struct fsl_udc *udc) @@ -1282,7 +1288,7 @@ static int ep0_prime_status(struct fsl_udc *udc, int direction) req->req.length = 0; req->req.status = -EINPROGRESS; req->req.actual = 0; - req->req.complete = NULL; + req->req.complete = fsl_noop_complete; req->dtd_count = 0; ret = usb_gadget_map_request(&ep->udc->gadget, &req->req, ep_is_in(ep)); @@ -1365,7 +1371,7 @@ static void ch9getstatus(struct fsl_udc *udc, u8 request_type, u16 value, req->req.length = 2; req->req.status = -EINPROGRESS; req->req.actual = 0; - req->req.complete = NULL; + req->req.complete = fsl_noop_complete; req->dtd_count = 0; ret = usb_gadget_map_request(&ep->udc->gadget, &req->req, ep_is_in(ep)); diff --git a/drivers/usb/gadget/udc/fusb300_udc.c b/drivers/usb/gadget/udc/fusb300_udc.c index 42ff308578df..e0c1b0099265 100644 --- a/drivers/usb/gadget/udc/fusb300_udc.c +++ b/drivers/usb/gadget/udc/fusb300_udc.c @@ -518,7 +518,7 @@ static void fusb300_fifo_flush(struct usb_ep *_ep) { } -static struct usb_ep_ops fusb300_ep_ops = { +static const struct usb_ep_ops fusb300_ep_ops = { .enable = fusb300_enable, .disable = fusb300_disable, diff --git a/drivers/usb/gadget/udc/goku_udc.c b/drivers/usb/gadget/udc/goku_udc.c index 5107987bd353..8433c22900dc 100644 --- a/drivers/usb/gadget/udc/goku_udc.c +++ b/drivers/usb/gadget/udc/goku_udc.c @@ -968,7 +968,7 @@ static void goku_fifo_flush(struct usb_ep *_ep) command(regs, COMMAND_FIFO_CLEAR, ep->num); } -static struct usb_ep_ops goku_ep_ops = { +static const struct usb_ep_ops goku_ep_ops = { .enable = goku_ep_enable, .disable = goku_ep_disable, diff --git a/drivers/usb/gadget/udc/gr_udc.c b/drivers/usb/gadget/udc/gr_udc.c index b16f8af34050..1f9941145746 100644 --- a/drivers/usb/gadget/udc/gr_udc.c +++ b/drivers/usb/gadget/udc/gr_udc.c @@ -1841,7 +1841,7 @@ static void gr_fifo_flush(struct usb_ep *_ep) spin_unlock(&ep->dev->lock); } -static struct usb_ep_ops gr_ep_ops = { +static const struct usb_ep_ops gr_ep_ops = { .enable = gr_ep_enable, .disable = gr_ep_disable, diff --git a/drivers/usb/gadget/udc/m66592-udc.c b/drivers/usb/gadget/udc/m66592-udc.c index de3e03483659..46ce7bc15f2b 100644 --- a/drivers/usb/gadget/udc/m66592-udc.c +++ b/drivers/usb/gadget/udc/m66592-udc.c @@ -1436,7 +1436,7 @@ static void m66592_fifo_flush(struct usb_ep *_ep) spin_unlock_irqrestore(&ep->m66592->lock, flags); } -static struct usb_ep_ops m66592_ep_ops = { +static const struct usb_ep_ops m66592_ep_ops = { .enable = m66592_enable, .disable = m66592_disable, diff --git a/drivers/usb/gadget/udc/mv_u3d_core.c b/drivers/usb/gadget/udc/mv_u3d_core.c index 8d726bd767fd..d365449a295a 100644 --- a/drivers/usb/gadget/udc/mv_u3d_core.c +++ b/drivers/usb/gadget/udc/mv_u3d_core.c @@ -995,7 +995,7 @@ static int mv_u3d_ep_set_wedge(struct usb_ep *_ep) return mv_u3d_ep_set_halt_wedge(_ep, 1, 1); } -static struct usb_ep_ops mv_u3d_ep_ops = { +static const struct usb_ep_ops mv_u3d_ep_ops = { .enable = mv_u3d_ep_enable, .disable = mv_u3d_ep_disable, diff --git a/drivers/usb/gadget/udc/mv_udc_core.c b/drivers/usb/gadget/udc/mv_udc_core.c index d82a91bddbd9..27ebb0d5449d 100644 --- a/drivers/usb/gadget/udc/mv_udc_core.c +++ b/drivers/usb/gadget/udc/mv_udc_core.c @@ -946,7 +946,7 @@ static int mv_ep_set_wedge(struct usb_ep *_ep) return mv_ep_set_halt_wedge(_ep, 1, 1); } -static struct usb_ep_ops mv_ep_ops = { +static const struct usb_ep_ops mv_ep_ops = { .enable = mv_ep_enable, .disable = mv_ep_disable, diff --git a/drivers/usb/gadget/udc/net2272.c b/drivers/usb/gadget/udc/net2272.c index 078c91d546e0..7dc0102abdfe 100644 --- a/drivers/usb/gadget/udc/net2272.c +++ b/drivers/usb/gadget/udc/net2272.c @@ -181,7 +181,7 @@ static void net2272_dequeue_all(struct net2272_ep *); static int net2272_kick_dma(struct net2272_ep *, struct net2272_request *); static int net2272_fifo_status(struct usb_ep *); -static struct usb_ep_ops net2272_ep_ops; +static const struct usb_ep_ops net2272_ep_ops; /*---------------------------------------------------------------------------*/ @@ -1067,7 +1067,7 @@ net2272_fifo_flush(struct usb_ep *_ep) net2272_ep_write(ep, EP_STAT1, 1 << BUFFER_FLUSH); } -static struct usb_ep_ops net2272_ep_ops = { +static const struct usb_ep_ops net2272_ep_ops = { .enable = net2272_enable, .disable = net2272_disable, diff --git a/drivers/usb/gadget/udc/omap_udc.c b/drivers/usb/gadget/udc/omap_udc.c index a8709f9e5648..f05ba6825bfe 100644 --- a/drivers/usb/gadget/udc/omap_udc.c +++ b/drivers/usb/gadget/udc/omap_udc.c @@ -1112,7 +1112,7 @@ done: return status; } -static struct usb_ep_ops omap_ep_ops = { +static const struct usb_ep_ops omap_ep_ops = { .enable = omap_ep_enable, .disable = omap_ep_disable, diff --git a/drivers/usb/gadget/udc/pxa27x_udc.c b/drivers/usb/gadget/udc/pxa27x_udc.c index 7fa60f5b7ae4..e1335ad5bce9 100644 --- a/drivers/usb/gadget/udc/pxa27x_udc.c +++ b/drivers/usb/gadget/udc/pxa27x_udc.c @@ -1473,7 +1473,7 @@ static int pxa_ep_disable(struct usb_ep *_ep) return 0; } -static struct usb_ep_ops pxa_ep_ops = { +static const struct usb_ep_ops pxa_ep_ops = { .enable = pxa_ep_enable, .disable = pxa_ep_disable, diff --git a/drivers/usb/gadget/udc/r8a66597-udc.c b/drivers/usb/gadget/udc/r8a66597-udc.c index f2c8862093a2..118ad70f1af0 100644 --- a/drivers/usb/gadget/udc/r8a66597-udc.c +++ b/drivers/usb/gadget/udc/r8a66597-udc.c @@ -1706,7 +1706,7 @@ static void r8a66597_fifo_flush(struct usb_ep *_ep) spin_unlock_irqrestore(&ep->r8a66597->lock, flags); } -static struct usb_ep_ops r8a66597_ep_ops = { +static const struct usb_ep_ops r8a66597_ep_ops = { .enable = r8a66597_enable, .disable = r8a66597_disable, diff --git a/drivers/usb/gadget/udc/s3c-hsudc.c b/drivers/usb/gadget/udc/s3c-hsudc.c index 82a9e2a3bedc..42587b738a1f 100644 --- a/drivers/usb/gadget/udc/s3c-hsudc.c +++ b/drivers/usb/gadget/udc/s3c-hsudc.c @@ -954,7 +954,7 @@ static int s3c_hsudc_dequeue(struct usb_ep *_ep, struct usb_request *_req) return 0; } -static struct usb_ep_ops s3c_hsudc_ep_ops = { +static const struct usb_ep_ops s3c_hsudc_ep_ops = { .enable = s3c_hsudc_ep_enable, .disable = s3c_hsudc_ep_disable, .alloc_request = s3c_hsudc_alloc_request, |