diff options
Diffstat (limited to 'drivers/usb/renesas_usbhs')
| -rw-r--r-- | drivers/usb/renesas_usbhs/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/usb/renesas_usbhs/common.c | 106 | ||||
| -rw-r--r-- | drivers/usb/renesas_usbhs/common.h | 15 | ||||
| -rw-r--r-- | drivers/usb/renesas_usbhs/fifo.c | 119 | ||||
| -rw-r--r-- | drivers/usb/renesas_usbhs/fifo.h | 8 | ||||
| -rw-r--r-- | drivers/usb/renesas_usbhs/mod.c | 44 | ||||
| -rw-r--r-- | drivers/usb/renesas_usbhs/mod.h | 2 | ||||
| -rw-r--r-- | drivers/usb/renesas_usbhs/mod_gadget.c | 354 | ||||
| -rw-r--r-- | drivers/usb/renesas_usbhs/mod_host.c | 992 | ||||
| -rw-r--r-- | drivers/usb/renesas_usbhs/pipe.c | 136 | ||||
| -rw-r--r-- | drivers/usb/renesas_usbhs/pipe.h | 12 |
11 files changed, 1133 insertions, 657 deletions
diff --git a/drivers/usb/renesas_usbhs/Kconfig b/drivers/usb/renesas_usbhs/Kconfig index 6f4afa43638..1c4195abc10 100644 --- a/drivers/usb/renesas_usbhs/Kconfig +++ b/drivers/usb/renesas_usbhs/Kconfig @@ -4,7 +4,7 @@ config USB_RENESAS_USBHS tristate 'Renesas USBHS controller' - depends on USB && USB_GADGET + depends on USB_GADGET default n help Renesas USBHS is a discrete USB host and peripheral controller chip diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c index 08c679c0dde..17267b0a2e9 100644 --- a/drivers/usb/renesas_usbhs/common.c +++ b/drivers/usb/renesas_usbhs/common.c @@ -14,12 +14,13 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * */ +#include <linux/err.h> #include <linux/io.h> #include <linux/module.h> #include <linux/pm_runtime.h> #include <linux/slab.h> #include <linux/sysfs.h> -#include "./common.h" +#include "common.h" /* * image of renesas_usbhs @@ -95,25 +96,15 @@ struct usbhs_priv *usbhs_pdev_to_priv(struct platform_device *pdev) /* * syscfg functions */ -void usbhs_sys_clock_ctrl(struct usbhs_priv *priv, int enable) +static void usbhs_sys_clock_ctrl(struct usbhs_priv *priv, int enable) { usbhs_bset(priv, SYSCFG, SCKE, enable ? SCKE : 0); } -void usbhs_sys_hispeed_ctrl(struct usbhs_priv *priv, int enable) -{ - usbhs_bset(priv, SYSCFG, HSE, enable ? HSE : 0); -} - -void usbhs_sys_usb_ctrl(struct usbhs_priv *priv, int enable) -{ - usbhs_bset(priv, SYSCFG, USBE, enable ? USBE : 0); -} - void usbhs_sys_host_ctrl(struct usbhs_priv *priv, int enable) { - u16 mask = DCFM | DRPD | DPRPU; - u16 val = DCFM | DRPD; + u16 mask = DCFM | DRPD | DPRPU | HSE | USBE; + u16 val = DCFM | DRPD | HSE | USBE; int has_otg = usbhs_get_dparam(priv, has_otg); if (has_otg) @@ -130,8 +121,8 @@ void usbhs_sys_host_ctrl(struct usbhs_priv *priv, int enable) void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int enable) { - u16 mask = DCFM | DRPD | DPRPU; - u16 val = DPRPU; + u16 mask = DCFM | DRPD | DPRPU | HSE | USBE; + u16 val = DPRPU | HSE | USBE; /* * if enable @@ -142,6 +133,16 @@ void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int enable) usbhs_bset(priv, SYSCFG, mask, enable ? val : 0); } +void usbhs_sys_function_pullup(struct usbhs_priv *priv, int enable) +{ + usbhs_bset(priv, SYSCFG, DPRPU, enable ? DPRPU : 0); +} + +void usbhs_sys_set_test_mode(struct usbhs_priv *priv, u16 mode) +{ + usbhs_write(priv, TESTMODE, mode); +} + /* * frame functions */ @@ -229,7 +230,7 @@ static void usbhsc_bus_init(struct usbhs_priv *priv) /* * device configuration */ -int usbhs_set_device_speed(struct usbhs_priv *priv, int devnum, +int usbhs_set_device_config(struct usbhs_priv *priv, int devnum, u16 upphub, u16 hubport, u16 speed) { struct device *dev = usbhs_priv_to_dev(priv); @@ -301,18 +302,25 @@ static u32 usbhsc_default_pipe_type[] = { */ static void usbhsc_power_ctrl(struct usbhs_priv *priv, int enable) { + struct platform_device *pdev = usbhs_priv_to_pdev(priv); struct device *dev = usbhs_priv_to_dev(priv); if (enable) { /* enable PM */ pm_runtime_get_sync(dev); + /* enable platform power */ + usbhs_platform_call(priv, power_ctrl, pdev, priv->base, enable); + /* USB on */ usbhs_sys_clock_ctrl(priv, enable); } else { /* USB off */ usbhs_sys_clock_ctrl(priv, enable); + /* disable platform power */ + usbhs_platform_call(priv, power_ctrl, pdev, priv->base, enable); + /* disable PM */ pm_runtime_put_sync(dev); } @@ -388,7 +396,7 @@ static void usbhsc_notify_hotplug(struct work_struct *work) usbhsc_hotplug(priv); } -int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev) +static int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev) { struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev); int delay = usbhs_get_dparam(priv, detection_delay); @@ -398,7 +406,8 @@ int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev) * To make sure safety context, * use workqueue for usbhs_notify_hotplug */ - schedule_delayed_work(&priv->notify_hotplug_work, delay); + schedule_delayed_work(&priv->notify_hotplug_work, + msecs_to_jiffies(delay)); return 0; } @@ -407,11 +416,10 @@ int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev) */ static int usbhs_probe(struct platform_device *pdev) { - struct renesas_usbhs_platform_info *info = pdev->dev.platform_data; + struct renesas_usbhs_platform_info *info = dev_get_platdata(&pdev->dev); struct renesas_usbhs_driver_callback *dfunc; struct usbhs_priv *priv; - struct resource *res; - unsigned int irq; + struct resource *res, *irq_res; int ret; /* check platform information */ @@ -423,25 +431,22 @@ static int usbhs_probe(struct platform_device *pdev) /* platform data */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - irq = platform_get_irq(pdev, 0); - if (!res || (int)irq <= 0) { + irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!res || !irq_res) { dev_err(&pdev->dev, "Not enough Renesas USB platform resources.\n"); return -ENODEV; } /* usb private data */ - priv = kzalloc(sizeof(*priv), GFP_KERNEL); + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); if (!priv) { dev_err(&pdev->dev, "Could not allocate priv\n"); return -ENOMEM; } - priv->base = ioremap_nocache(res->start, resource_size(res)); - if (!priv->base) { - dev_err(&pdev->dev, "ioremap error.\n"); - ret = -ENOMEM; - goto probe_end_kfree; - } + priv->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(priv->base)) + return PTR_ERR(priv->base); /* * care platform info @@ -473,7 +478,9 @@ static int usbhs_probe(struct platform_device *pdev) /* * priv settings */ - priv->irq = irq; + priv->irq = irq_res->start; + if (irq_res->flags & IORESOURCE_IRQ_SHAREABLE) + priv->irqflags = IRQF_SHARED; priv->pdev = pdev; INIT_DELAYED_WORK(&priv->notify_hotplug_work, usbhsc_notify_hotplug); spin_lock_init(usbhs_priv_to_lock(priv)); @@ -481,7 +488,7 @@ static int usbhs_probe(struct platform_device *pdev) /* call pipe and module init */ ret = usbhs_pipe_probe(priv); if (ret < 0) - goto probe_end_iounmap; + return ret; ret = usbhs_fifo_probe(priv); if (ret < 0) @@ -492,7 +499,7 @@ static int usbhs_probe(struct platform_device *pdev) goto probe_end_fifo_exit; /* dev_set_drvdata should be called after usbhs_mod_init */ - dev_set_drvdata(&pdev->dev, priv); + platform_set_drvdata(pdev, priv); /* * deviece reset here because @@ -542,20 +549,16 @@ probe_end_fifo_exit: usbhs_fifo_remove(priv); probe_end_pipe_exit: usbhs_pipe_remove(priv); -probe_end_iounmap: - iounmap(priv->base); -probe_end_kfree: - kfree(priv); dev_info(&pdev->dev, "probe failed\n"); return ret; } -static int __devexit usbhs_remove(struct platform_device *pdev) +static int usbhs_remove(struct platform_device *pdev) { struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev); - struct renesas_usbhs_platform_info *info = pdev->dev.platform_data; + struct renesas_usbhs_platform_info *info = dev_get_platdata(&pdev->dev); struct renesas_usbhs_driver_callback *dfunc = &info->driver_callback; dev_dbg(&pdev->dev, "usb remove\n"); @@ -572,8 +575,6 @@ static int __devexit usbhs_remove(struct platform_device *pdev) usbhs_mod_remove(priv); usbhs_fifo_remove(priv); usbhs_pipe_remove(priv); - iounmap(priv->base); - kfree(priv); return 0; } @@ -599,12 +600,12 @@ static int usbhsc_resume(struct device *dev) struct usbhs_priv *priv = dev_get_drvdata(dev); struct platform_device *pdev = usbhs_priv_to_pdev(priv); - usbhs_platform_call(priv, phy_reset, pdev); - if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL)) usbhsc_power_ctrl(priv, 1); - usbhsc_hotplug(priv); + usbhs_platform_call(priv, phy_reset, pdev); + + usbhsc_drvcllbck_notify_hotplug(pdev); return 0; } @@ -634,21 +635,10 @@ static struct platform_driver renesas_usbhs_driver = { .pm = &usbhsc_pm_ops, }, .probe = usbhs_probe, - .remove = __devexit_p(usbhs_remove), + .remove = usbhs_remove, }; -static int __init usbhs_init(void) -{ - return platform_driver_register(&renesas_usbhs_driver); -} - -static void __exit usbhs_exit(void) -{ - platform_driver_unregister(&renesas_usbhs_driver); -} - -module_init(usbhs_init); -module_exit(usbhs_exit); +module_platform_driver(renesas_usbhs_driver); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Renesas USB driver"); diff --git a/drivers/usb/renesas_usbhs/common.h b/drivers/usb/renesas_usbhs/common.h index 8729da5c3be..c69dd2fba36 100644 --- a/drivers/usb/renesas_usbhs/common.h +++ b/drivers/usb/renesas_usbhs/common.h @@ -22,8 +22,8 @@ struct usbhs_priv; -#include "./mod.h" -#include "./pipe.h" +#include "mod.h" +#include "pipe.h" /* * @@ -33,6 +33,7 @@ struct usbhs_priv; #define SYSCFG 0x0000 #define BUSWAIT 0x0002 #define DVSTCTR 0x0008 +#define TESTMODE 0x000C #define CFIFO 0x0014 #define CFIFOSEL 0x0020 #define CFIFOCTR 0x0022 @@ -241,6 +242,7 @@ struct usbhs_priv { void __iomem *base; unsigned int irq; + unsigned long irqflags; struct renesas_usbhs_platform_callback pfunc; struct renesas_usbhs_driver_param dparam; @@ -275,19 +277,16 @@ u16 usbhs_read(struct usbhs_priv *priv, u32 reg); void usbhs_write(struct usbhs_priv *priv, u32 reg, u16 data); void usbhs_bset(struct usbhs_priv *priv, u32 reg, u16 mask, u16 data); -int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev); - #define usbhs_lock(p, f) spin_lock_irqsave(usbhs_priv_to_lock(p), f) #define usbhs_unlock(p, f) spin_unlock_irqrestore(usbhs_priv_to_lock(p), f) /* * sysconfig */ -void usbhs_sys_clock_ctrl(struct usbhs_priv *priv, int enable); -void usbhs_sys_hispeed_ctrl(struct usbhs_priv *priv, int enable); -void usbhs_sys_usb_ctrl(struct usbhs_priv *priv, int enable); void usbhs_sys_host_ctrl(struct usbhs_priv *priv, int enable); void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int enable); +void usbhs_sys_function_pullup(struct usbhs_priv *priv, int enable); +void usbhs_sys_set_test_mode(struct usbhs_priv *priv, u16 mode); /* * usb request @@ -311,7 +310,7 @@ int usbhs_frame_get_num(struct usbhs_priv *priv); /* * device config */ -int usbhs_set_device_speed(struct usbhs_priv *priv, int devnum, u16 upphub, +int usbhs_set_device_config(struct usbhs_priv *priv, int devnum, u16 upphub, u16 hubport, u16 speed); /* diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c index ffdf5d15085..4fd36530bfa 100644 --- a/drivers/usb/renesas_usbhs/fifo.c +++ b/drivers/usb/renesas_usbhs/fifo.c @@ -17,12 +17,13 @@ #include <linux/delay.h> #include <linux/io.h> #include <linux/scatterlist.h> -#include "./common.h" -#include "./pipe.h" +#include "common.h" +#include "pipe.h" #define usbhsf_get_cfifo(p) (&((p)->fifo_info.cfifo)) #define usbhsf_get_d0fifo(p) (&((p)->fifo_info.d0fifo)) #define usbhsf_get_d1fifo(p) (&((p)->fifo_info.d1fifo)) +#define usbhsf_is_cfifo(p, f) (usbhsf_get_cfifo(p) == f) #define usbhsf_fifo_is_busy(f) ((f)->pipe) /* see usbhs_pipe_select_fifo */ @@ -31,7 +32,6 @@ */ void usbhs_pkt_init(struct usbhs_pkt *pkt) { - pkt->dma = DMA_ADDR_INVALID; INIT_LIST_HEAD(&pkt->node); } @@ -56,7 +56,7 @@ static struct usbhs_pkt_handle usbhsf_null_handler = { void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt, void (*done)(struct usbhs_priv *priv, struct usbhs_pkt *pkt), - void *buf, int len, int zero) + void *buf, int len, int zero, int sequence) { struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); struct device *dev = usbhs_priv_to_dev(priv); @@ -75,8 +75,7 @@ void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt, pipe->handler = &usbhsf_null_handler; } - list_del_init(&pkt->node); - list_add_tail(&pkt->node, &pipe->list); + list_move_tail(&pkt->node, &pipe->list); /* * each pkt must hold own handler. @@ -90,6 +89,7 @@ void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt, pkt->zero = zero; pkt->actual = 0; pkt->done = done; + pkt->sequence = sequence; usbhs_unlock(priv, flags); /******************** spin unlock ******************/ @@ -105,7 +105,7 @@ static struct usbhs_pkt *__usbhsf_pkt_get(struct usbhs_pipe *pipe) if (list_empty(&pipe->list)) return NULL; - return list_entry(pipe->list.next, struct usbhs_pkt, node); + return list_first_entry(&pipe->list, struct usbhs_pkt, node); } struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt) @@ -162,7 +162,7 @@ static int usbhsf_pkt_handler(struct usbhs_pipe *pipe, int type) func = pkt->handler->dma_done; break; default: - dev_err(dev, "unknown pkt hander\n"); + dev_err(dev, "unknown pkt handler\n"); goto __usbhs_pkt_handler_end; } @@ -191,8 +191,8 @@ void usbhs_pkt_start(struct usbhs_pipe *pipe) /* * irq enable/disable function */ -#define usbhsf_irq_empty_ctrl(p, e) usbhsf_irq_callback_ctrl(p, bempsts, e) -#define usbhsf_irq_ready_ctrl(p, e) usbhsf_irq_callback_ctrl(p, brdysts, e) +#define usbhsf_irq_empty_ctrl(p, e) usbhsf_irq_callback_ctrl(p, irq_bempsts, e) +#define usbhsf_irq_ready_ctrl(p, e) usbhsf_irq_callback_ctrl(p, irq_brdysts, e) #define usbhsf_irq_callback_ctrl(pipe, status, enable) \ ({ \ struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); \ @@ -201,9 +201,9 @@ void usbhs_pkt_start(struct usbhs_pipe *pipe) if (!mod) \ return; \ if (enable) \ - mod->irq_##status |= status; \ + mod->status |= status; \ else \ - mod->irq_##status &= ~status; \ + mod->status &= ~status; \ usbhs_irq_callback_update(priv, mod); \ }) @@ -304,7 +304,10 @@ static int usbhsf_fifo_select(struct usbhs_pipe *pipe, } /* "base" will be used below */ - usbhs_write(priv, fifo->sel, base | MBW_32); + if (usbhs_get_dparam(priv, has_sudmac) && !usbhsf_is_cfifo(priv, fifo)) + usbhs_write(priv, fifo->sel, base); + else + usbhs_write(priv, fifo->sel, base | MBW_32); /* check ISEL and CURPIPE value */ while (timeout--) { @@ -481,6 +484,11 @@ static int usbhsf_pio_try_push(struct usbhs_pkt *pkt, int *is_done) int i, ret, len; int is_short; + usbhs_pipe_data_sequence(pipe, pkt->sequence); + pkt->sequence = -1; /* -1 sequence will be ignored */ + + usbhs_pipe_set_trans_count_if_bulk(pipe, pkt->length); + ret = usbhsf_fifo_select(pipe, fifo, 1); if (ret < 0) return 0; @@ -584,7 +592,10 @@ static int usbhsf_prepare_pop(struct usbhs_pkt *pkt, int *is_done) /* * pipe enable to prepare packet receive */ + usbhs_pipe_data_sequence(pipe, pkt->sequence); + pkt->sequence = -1; /* -1 sequence will be ignored */ + usbhs_pipe_set_trans_count_if_bulk(pipe, pkt->length); usbhs_pipe_enable(pipe); usbhsf_rx_irq_ctrl(pipe, 1); @@ -641,6 +652,7 @@ static int usbhsf_pio_try_pop(struct usbhs_pkt *pkt, int *is_done) * "Operation" - "FIFO Buffer Memory" - "FIFO Port Function" */ if (0 == rcv_len) { + pkt->zero = 1; usbhsf_fifo_clear(pipe, fifo); goto usbhs_fifo_read_end; } @@ -669,6 +681,14 @@ usbhs_fifo_read_end: usbhs_pipe_number(pipe), pkt->length, pkt->actual, *is_done, pkt->zero); + /* + * Transmission end + */ + if (*is_done) { + if (usbhs_pipe_is_dcp(pipe)) + usbhs_dcp_control_transfer_done(pipe); + } + usbhs_fifo_read_busy: usbhsf_fifo_unselect(pipe, fifo); @@ -755,38 +775,29 @@ static int __usbhsf_dma_map_ctrl(struct usbhs_pkt *pkt, int map) } static void usbhsf_dma_complete(void *arg); -static void usbhsf_dma_prepare_tasklet(unsigned long data) +static void xfer_work(struct work_struct *work) { - struct usbhs_pkt *pkt = (struct usbhs_pkt *)data; + struct usbhs_pkt *pkt = container_of(work, struct usbhs_pkt, work); struct usbhs_pipe *pipe = pkt->pipe; struct usbhs_fifo *fifo = usbhs_pipe_to_fifo(pipe); struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); - struct scatterlist sg; struct dma_async_tx_descriptor *desc; struct dma_chan *chan = usbhsf_dma_chan_get(fifo, pkt); struct device *dev = usbhs_priv_to_dev(priv); - enum dma_data_direction dir; - dma_cookie_t cookie; + enum dma_transfer_direction dir; - dir = usbhs_pipe_is_dir_in(pipe) ? DMA_FROM_DEVICE : DMA_TO_DEVICE; + dir = usbhs_pipe_is_dir_in(pipe) ? DMA_DEV_TO_MEM : DMA_MEM_TO_DEV; - sg_init_table(&sg, 1); - sg_set_page(&sg, virt_to_page(pkt->dma), - pkt->length, offset_in_page(pkt->dma)); - sg_dma_address(&sg) = pkt->dma + pkt->actual; - sg_dma_len(&sg) = pkt->trans; - - desc = chan->device->device_prep_slave_sg(chan, &sg, 1, dir, - DMA_PREP_INTERRUPT | - DMA_CTRL_ACK); + desc = dmaengine_prep_slave_single(chan, pkt->dma + pkt->actual, + pkt->trans, dir, + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); if (!desc) return; desc->callback = usbhsf_dma_complete; desc->callback_param = pipe; - cookie = desc->tx_submit(desc); - if (cookie < 0) { + if (dmaengine_submit(desc) < 0) { dev_err(dev, "Failed to submit dma descriptor\n"); return; } @@ -794,6 +805,8 @@ static void usbhsf_dma_prepare_tasklet(unsigned long data) dev_dbg(dev, " %s %d (%d/ %d)\n", fifo->name, usbhs_pipe_number(pipe), pkt->length, pkt->zero); + usbhs_pipe_set_trans_count_if_bulk(pipe, pkt->trans); + usbhs_pipe_enable(pipe); usbhsf_dma_start(pipe, fifo); dma_async_issue_pending(chan); } @@ -817,7 +830,7 @@ static int usbhsf_dma_prepare_push(struct usbhs_pkt *pkt, int *is_done) usbhs_pipe_is_dcp(pipe)) goto usbhsf_pio_prepare_push; - if (len % 4) /* 32bit alignment */ + if (len & 0x7) /* 8byte alignment */ goto usbhsf_pio_prepare_push; if ((uintptr_t)(pkt->buf + pkt->actual) & 0x7) /* 8byte alignment */ @@ -837,11 +850,8 @@ static int usbhsf_dma_prepare_push(struct usbhs_pkt *pkt, int *is_done) pkt->trans = len; - tasklet_init(&fifo->tasklet, - usbhsf_dma_prepare_tasklet, - (unsigned long)pkt); - - tasklet_schedule(&fifo->tasklet); + INIT_WORK(&pkt->work, xfer_work); + schedule_work(&pkt->work); return 0; @@ -907,7 +917,7 @@ static int usbhsf_dma_try_pop(struct usbhs_pkt *pkt, int *is_done) /* use PIO if packet is less than pio_dma_border */ len = usbhsf_fifo_rcv_len(priv, fifo); len = min(pkt->length - pkt->actual, len); - if (len % 4) /* 32bit alignment */ + if (len & 0x7) /* 8byte alignment */ goto usbhsf_pio_prepare_pop_unselect; if (len < usbhs_get_dparam(priv, pio_dma_border)) @@ -931,11 +941,8 @@ static int usbhsf_dma_try_pop(struct usbhs_pkt *pkt, int *is_done) pkt->trans = len; - tasklet_init(&fifo->tasklet, - usbhsf_dma_prepare_tasklet, - (unsigned long)pkt); - - tasklet_schedule(&fifo->tasklet); + INIT_WORK(&pkt->work, xfer_work); + schedule_work(&pkt->work); return 0; @@ -991,7 +998,7 @@ static bool usbhsf_dma_filter(struct dma_chan *chan, void *param) * * usbhs doesn't recognize id = 0 as valid DMA */ - if (0 == slave->slave_id) + if (0 == slave->shdma_slave.slave_id) return false; chan->private = slave; @@ -1125,19 +1132,8 @@ void usbhs_fifo_init(struct usbhs_priv *priv) mod->irq_brdysts = 0; cfifo->pipe = NULL; - cfifo->tx_chan = NULL; - cfifo->rx_chan = NULL; - d0fifo->pipe = NULL; - d0fifo->tx_chan = NULL; - d0fifo->rx_chan = NULL; - d1fifo->pipe = NULL; - d1fifo->tx_chan = NULL; - d1fifo->rx_chan = NULL; - - usbhsf_dma_init(priv, usbhsf_get_d0fifo(priv)); - usbhsf_dma_init(priv, usbhsf_get_d1fifo(priv)); } void usbhs_fifo_quit(struct usbhs_priv *priv) @@ -1148,9 +1144,6 @@ void usbhs_fifo_quit(struct usbhs_priv *priv) mod->irq_ready = NULL; mod->irq_bempsts = 0; mod->irq_brdysts = 0; - - usbhsf_dma_quit(priv, usbhsf_get_d0fifo(priv)); - usbhsf_dma_quit(priv, usbhsf_get_d1fifo(priv)); } int usbhs_fifo_probe(struct usbhs_priv *priv) @@ -1170,8 +1163,9 @@ int usbhs_fifo_probe(struct usbhs_priv *priv) fifo->port = D0FIFO; fifo->sel = D0FIFOSEL; fifo->ctr = D0FIFOCTR; - fifo->tx_slave.slave_id = usbhs_get_dparam(priv, d0_tx_id); - fifo->rx_slave.slave_id = usbhs_get_dparam(priv, d0_rx_id); + fifo->tx_slave.shdma_slave.slave_id = usbhs_get_dparam(priv, d0_tx_id); + fifo->rx_slave.shdma_slave.slave_id = usbhs_get_dparam(priv, d0_rx_id); + usbhsf_dma_init(priv, fifo); /* D1FIFO */ fifo = usbhsf_get_d1fifo(priv); @@ -1179,12 +1173,15 @@ int usbhs_fifo_probe(struct usbhs_priv *priv) fifo->port = D1FIFO; fifo->sel = D1FIFOSEL; fifo->ctr = D1FIFOCTR; - fifo->tx_slave.slave_id = usbhs_get_dparam(priv, d1_tx_id); - fifo->rx_slave.slave_id = usbhs_get_dparam(priv, d1_rx_id); + fifo->tx_slave.shdma_slave.slave_id = usbhs_get_dparam(priv, d1_tx_id); + fifo->rx_slave.shdma_slave.slave_id = usbhs_get_dparam(priv, d1_rx_id); + usbhsf_dma_init(priv, fifo); return 0; } void usbhs_fifo_remove(struct usbhs_priv *priv) { + usbhsf_dma_quit(priv, usbhsf_get_d0fifo(priv)); + usbhsf_dma_quit(priv, usbhsf_get_d1fifo(priv)); } diff --git a/drivers/usb/renesas_usbhs/fifo.h b/drivers/usb/renesas_usbhs/fifo.h index 32a7b246b28..a168a1760fc 100644 --- a/drivers/usb/renesas_usbhs/fifo.h +++ b/drivers/usb/renesas_usbhs/fifo.h @@ -19,11 +19,10 @@ #include <linux/interrupt.h> #include <linux/sh_dma.h> +#include <linux/workqueue.h> #include <asm/dma.h> #include "pipe.h" -#define DMA_ADDR_INVALID (~(dma_addr_t)0) - struct usbhs_fifo { char *name; u32 port; /* xFIFO */ @@ -31,7 +30,6 @@ struct usbhs_fifo { u32 ctr; /* xFIFOCTR */ struct usbhs_pipe *pipe; - struct tasklet_struct tasklet; struct dma_chan *tx_chan; struct dma_chan *rx_chan; @@ -53,12 +51,14 @@ struct usbhs_pkt { struct usbhs_pkt_handle *handler; void (*done)(struct usbhs_priv *priv, struct usbhs_pkt *pkt); + struct work_struct work; dma_addr_t dma; void *buf; int length; int trans; int actual; int zero; + int sequence; }; struct usbhs_pkt_handle { @@ -95,7 +95,7 @@ void usbhs_pkt_init(struct usbhs_pkt *pkt); void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt, void (*done)(struct usbhs_priv *priv, struct usbhs_pkt *pkt), - void *buf, int len, int zero); + void *buf, int len, int zero, int sequence); struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt); void usbhs_pkt_start(struct usbhs_pipe *pipe); diff --git a/drivers/usb/renesas_usbhs/mod.c b/drivers/usb/renesas_usbhs/mod.c index ad96a389672..6a030b931a3 100644 --- a/drivers/usb/renesas_usbhs/mod.c +++ b/drivers/usb/renesas_usbhs/mod.c @@ -16,8 +16,8 @@ */ #include <linux/interrupt.h> -#include "./common.h" -#include "./mod.h" +#include "common.h" +#include "mod.h" #define usbhs_priv_to_modinfo(priv) (&priv->mod_info) #define usbhs_mod_info_call(priv, func, param...) \ @@ -50,7 +50,9 @@ static int usbhsm_autonomy_irq_vbus(struct usbhs_priv *priv, { struct platform_device *pdev = usbhs_priv_to_pdev(priv); - return usbhsc_drvcllbck_notify_hotplug(pdev); + renesas_usbhs_call_notify_hotplug(pdev); + + return 0; } void usbhs_mod_autonomy_mode(struct usbhs_priv *priv) @@ -149,8 +151,8 @@ int usbhs_mod_probe(struct usbhs_priv *priv) goto mod_init_host_err; /* irq settings */ - ret = request_irq(priv->irq, usbhs_interrupt, - 0, dev_name(dev), priv); + ret = devm_request_irq(dev, priv->irq, usbhs_interrupt, + priv->irqflags, dev_name(dev), priv); if (ret) { dev_err(dev, "irq request err\n"); goto mod_init_gadget_err; @@ -170,7 +172,6 @@ void usbhs_mod_remove(struct usbhs_priv *priv) { usbhs_mod_host_remove(priv); usbhs_mod_gadget_remove(priv); - free_irq(priv->irq, priv); } /* @@ -207,14 +208,18 @@ int usbhs_status_get_ctrl_stage(struct usbhs_irq_state *irq_state) return (int)irq_state->intsts0 & CTSQ_MASK; } -static void usbhs_status_get_each_irq(struct usbhs_priv *priv, - struct usbhs_irq_state *state) +static int usbhs_status_get_each_irq(struct usbhs_priv *priv, + struct usbhs_irq_state *state) { struct usbhs_mod *mod = usbhs_mod_get_current(priv); + u16 intenb0, intenb1; state->intsts0 = usbhs_read(priv, INTSTS0); state->intsts1 = usbhs_read(priv, INTSTS1); + intenb0 = usbhs_read(priv, INTENB0); + intenb1 = usbhs_read(priv, INTENB1); + /* mask */ if (mod) { state->brdysts = usbhs_read(priv, BRDYSTS); @@ -224,6 +229,20 @@ static void usbhs_status_get_each_irq(struct usbhs_priv *priv, state->bempsts &= mod->irq_bempsts; state->brdysts &= mod->irq_brdysts; } + + /* + * Check whether the irq enable registers and the irq status are set + * when IRQF_SHARED is set. + */ + if (priv->irqflags & IRQF_SHARED) { + if (!(intenb0 & state->intsts0) && + !(intenb1 & state->intsts1) && + !(state->bempsts) && + !(state->brdysts)) + return -EIO; + } + + return 0; } /* @@ -236,7 +255,8 @@ static irqreturn_t usbhs_interrupt(int irq, void *data) struct usbhs_priv *priv = data; struct usbhs_irq_state irq_state; - usbhs_status_get_each_irq(priv, &irq_state); + if (usbhs_status_get_each_irq(priv, &irq_state) < 0) + return IRQ_NONE; /* * clear interrupt @@ -252,9 +272,9 @@ static irqreturn_t usbhs_interrupt(int irq, void *data) usbhs_write(priv, INTSTS0, ~irq_state.intsts0 & INTSTS0_MAGIC); usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC); - usbhs_write(priv, BRDYSTS, 0); - usbhs_write(priv, NRDYSTS, 0); - usbhs_write(priv, BEMPSTS, 0); + usbhs_write(priv, BRDYSTS, ~irq_state.brdysts); + usbhs_write(priv, NRDYSTS, ~irq_state.nrdysts); + usbhs_write(priv, BEMPSTS, ~irq_state.bempsts); /* * call irq callback functions diff --git a/drivers/usb/renesas_usbhs/mod.h b/drivers/usb/renesas_usbhs/mod.h index 6c6875533f0..1ef5bf60407 100644 --- a/drivers/usb/renesas_usbhs/mod.h +++ b/drivers/usb/renesas_usbhs/mod.h @@ -19,7 +19,7 @@ #include <linux/spinlock.h> #include <linux/usb/renesas_usbhs.h> -#include "./common.h" +#include "common.h" /* * struct diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c index aa0d183236c..458f3766bef 100644 --- a/drivers/usb/renesas_usbhs/mod_gadget.c +++ b/drivers/usb/renesas_usbhs/mod_gadget.c @@ -14,6 +14,7 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * */ +#include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/io.h> #include <linux/module.h> @@ -44,7 +45,6 @@ struct usbhsg_uep { struct usbhsg_gpriv { struct usb_gadget gadget; struct usbhs_mod mod; - struct list_head link; struct usbhsg_uep *uep; int uep_size; @@ -55,6 +55,7 @@ struct usbhsg_gpriv { #define USBHSG_STATUS_STARTED (1 << 0) #define USBHSG_STATUS_REGISTERD (1 << 1) #define USBHSG_STATUS_WEDGE (1 << 2) +#define USBHSG_STATUS_SELF_POWERED (1 << 3) }; struct usbhsg_recip_handle { @@ -76,9 +77,9 @@ struct usbhsg_recip_handle { struct usbhsg_gpriv, mod) #define __usbhsg_for_each_uep(start, pos, g, i) \ - for (i = start, pos = (g)->uep + i; \ - i < (g)->uep_size; \ - i++, pos = (g)->uep + i) + for ((i) = start; \ + ((i) < (g)->uep_size) && ((pos) = (g)->uep + (i)); \ + (i)++) #define usbhsg_for_each_uep(pos, gpriv, i) \ __usbhsg_for_each_uep(1, pos, gpriv, i) @@ -114,16 +115,6 @@ struct usbhsg_recip_handle { #define usbhsg_status_clr(gp, b) (gp->status &= ~b) #define usbhsg_status_has(gp, b) (gp->status & b) -/* controller */ -LIST_HEAD(the_controller_link); - -#define usbhsg_for_each_controller(gpriv)\ - list_for_each_entry(gpriv, &the_controller_link, link) -#define usbhsg_controller_register(gpriv)\ - list_add_tail(&(gpriv)->link, &the_controller_link) -#define usbhsg_controller_unregister(gpriv)\ - list_del_init(&(gpriv)->link) - /* * queue push/pop */ @@ -164,7 +155,7 @@ static void usbhsg_queue_push(struct usbhsg_uep *uep, req->actual = 0; req->status = -EINPROGRESS; usbhs_pkt_push(pipe, pkt, usbhsg_queue_done, - req->buf, req->length, req->zero); + req->buf, req->length, req->zero, -1); usbhs_pkt_start(pipe); dev_dbg(dev, "pipe %d : queue push (%d)\n", @@ -175,69 +166,32 @@ static void usbhsg_queue_push(struct usbhsg_uep *uep, /* * dma map/unmap */ -static int usbhsg_dma_map(struct device *dev, - struct usbhs_pkt *pkt, - enum dma_data_direction dir) -{ - struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt); - struct usb_request *req = &ureq->req; - - if (pkt->dma != DMA_ADDR_INVALID) { - dev_err(dev, "dma is already mapped\n"); - return -EIO; - } - - if (req->dma == DMA_ADDR_INVALID) { - pkt->dma = dma_map_single(dev, pkt->buf, pkt->length, dir); - } else { - dma_sync_single_for_device(dev, req->dma, req->length, dir); - pkt->dma = req->dma; - } - - if (dma_mapping_error(dev, pkt->dma)) { - dev_err(dev, "dma mapping error %x\n", pkt->dma); - return -EIO; - } - - return 0; -} - -static int usbhsg_dma_unmap(struct device *dev, - struct usbhs_pkt *pkt, - enum dma_data_direction dir) +static int usbhsg_dma_map_ctrl(struct usbhs_pkt *pkt, int map) { struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt); struct usb_request *req = &ureq->req; - - if (pkt->dma == DMA_ADDR_INVALID) { - dev_err(dev, "dma is not mapped\n"); - return -EIO; - } - - if (req->dma == DMA_ADDR_INVALID) - dma_unmap_single(dev, pkt->dma, pkt->length, dir); - else - dma_sync_single_for_cpu(dev, req->dma, req->length, dir); - - pkt->dma = DMA_ADDR_INVALID; - - return 0; -} - -static int usbhsg_dma_map_ctrl(struct usbhs_pkt *pkt, int map) -{ struct usbhs_pipe *pipe = pkt->pipe; struct usbhsg_uep *uep = usbhsg_pipe_to_uep(pipe); struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); - struct device *dev = usbhsg_gpriv_to_dev(gpriv); enum dma_data_direction dir; + int ret = 0; - dir = usbhs_pipe_is_dir_in(pipe) ? DMA_FROM_DEVICE : DMA_TO_DEVICE; + dir = usbhs_pipe_is_dir_host(pipe); - if (map) - return usbhsg_dma_map(dev, pkt, dir); - else - return usbhsg_dma_unmap(dev, pkt, dir); + if (map) { + /* it can not use scatter/gather */ + WARN_ON(req->num_sgs); + + ret = usb_gadget_map_request(&gpriv->gadget, req, dir); + if (ret < 0) + return ret; + + pkt->dma = req->dma; + } else { + usb_gadget_unmap_request(&gpriv->gadget, req, dir); + } + + return ret; } /* @@ -271,10 +225,12 @@ static int usbhsg_recip_handler_std_clear_endpoint(struct usbhs_priv *priv, usbhsg_recip_handler_std_control_done(priv, uep, ctrl); + usbhs_pkt_start(pipe); + return 0; } -struct usbhsg_recip_handle req_clear_feature = { +static struct usbhsg_recip_handle req_clear_feature = { .name = "clear feature", .device = usbhsg_recip_handler_std_control_done, .interface = usbhsg_recip_handler_std_control_done, @@ -282,6 +238,148 @@ struct usbhsg_recip_handle req_clear_feature = { }; /* + * USB_TYPE_STANDARD / set feature functions + */ +static int usbhsg_recip_handler_std_set_device(struct usbhs_priv *priv, + struct usbhsg_uep *uep, + struct usb_ctrlrequest *ctrl) +{ + switch (le16_to_cpu(ctrl->wValue)) { + case USB_DEVICE_TEST_MODE: + usbhsg_recip_handler_std_control_done(priv, uep, ctrl); + udelay(100); + usbhs_sys_set_test_mode(priv, le16_to_cpu(ctrl->wIndex >> 8)); + break; + default: + usbhsg_recip_handler_std_control_done(priv, uep, ctrl); + break; + } + + return 0; +} + +static int usbhsg_recip_handler_std_set_endpoint(struct usbhs_priv *priv, + struct usbhsg_uep *uep, + struct usb_ctrlrequest *ctrl) +{ + struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); + + usbhs_pipe_stall(pipe); + + usbhsg_recip_handler_std_control_done(priv, uep, ctrl); + + return 0; +} + +static struct usbhsg_recip_handle req_set_feature = { + .name = "set feature", + .device = usbhsg_recip_handler_std_set_device, + .interface = usbhsg_recip_handler_std_control_done, + .endpoint = usbhsg_recip_handler_std_set_endpoint, +}; + +/* + * USB_TYPE_STANDARD / get status functions + */ +static void __usbhsg_recip_send_complete(struct usb_ep *ep, + struct usb_request *req) +{ + struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); + + /* free allocated recip-buffer/usb_request */ + kfree(ureq->pkt.buf); + usb_ep_free_request(ep, req); +} + +static void __usbhsg_recip_send_status(struct usbhsg_gpriv *gpriv, + unsigned short status) +{ + struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); + struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp); + struct device *dev = usbhsg_gpriv_to_dev(gpriv); + struct usb_request *req; + unsigned short *buf; + + /* alloc new usb_request for recip */ + req = usb_ep_alloc_request(&dcp->ep, GFP_ATOMIC); + if (!req) { + dev_err(dev, "recip request allocation fail\n"); + return; + } + + /* alloc recip data buffer */ + buf = kmalloc(sizeof(*buf), GFP_ATOMIC); + if (!buf) { + usb_ep_free_request(&dcp->ep, req); + dev_err(dev, "recip data allocation fail\n"); + return; + } + + /* recip data is status */ + *buf = cpu_to_le16(status); + + /* allocated usb_request/buffer will be freed */ + req->complete = __usbhsg_recip_send_complete; + req->buf = buf; + req->length = sizeof(*buf); + req->zero = 0; + + /* push packet */ + pipe->handler = &usbhs_fifo_pio_push_handler; + usbhsg_queue_push(dcp, usbhsg_req_to_ureq(req)); +} + +static int usbhsg_recip_handler_std_get_device(struct usbhs_priv *priv, + struct usbhsg_uep *uep, + struct usb_ctrlrequest *ctrl) +{ + struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); + unsigned short status = 0; + + if (usbhsg_status_has(gpriv, USBHSG_STATUS_SELF_POWERED)) + status = 1 << USB_DEVICE_SELF_POWERED; + + __usbhsg_recip_send_status(gpriv, status); + + return 0; +} + +static int usbhsg_recip_handler_std_get_interface(struct usbhs_priv *priv, + struct usbhsg_uep *uep, + struct usb_ctrlrequest *ctrl) +{ + struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); + unsigned short status = 0; + + __usbhsg_recip_send_status(gpriv, status); + + return 0; +} + +static int usbhsg_recip_handler_std_get_endpoint(struct usbhs_priv *priv, + struct usbhsg_uep *uep, + struct usb_ctrlrequest *ctrl) +{ + struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); + struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); + unsigned short status = 0; + + if (usbhs_pipe_is_stall(pipe)) + status = 1 << USB_ENDPOINT_HALT; + + __usbhsg_recip_send_status(gpriv, status); + + return 0; +} + +static struct usbhsg_recip_handle req_get_status = { + .name = "get status", + .device = usbhsg_recip_handler_std_get_device, + .interface = usbhsg_recip_handler_std_get_interface, + .endpoint = usbhsg_recip_handler_std_get_endpoint, +}; + +/* * USB_TYPE handler */ static int usbhsg_recip_run_handle(struct usbhs_priv *priv, @@ -294,7 +392,7 @@ static int usbhsg_recip_run_handle(struct usbhs_priv *priv, struct usbhs_pipe *pipe; int recip = ctrl->bRequestType & USB_RECIP_MASK; int nth = le16_to_cpu(ctrl->wIndex) & USB_ENDPOINT_NUMBER_MASK; - int ret; + int ret = 0; int (*func)(struct usbhs_priv *priv, struct usbhsg_uep *uep, struct usb_ctrlrequest *ctrl); char *msg; @@ -303,8 +401,7 @@ static int usbhsg_recip_run_handle(struct usbhs_priv *priv, pipe = usbhsg_uep_to_pipe(uep); if (!pipe) { dev_err(dev, "wrong recip request\n"); - ret = -EINVAL; - goto usbhsg_recip_run_handle_end; + return -EINVAL; } switch (recip) { @@ -327,20 +424,10 @@ static int usbhsg_recip_run_handle(struct usbhs_priv *priv, } if (func) { - unsigned long flags; - dev_dbg(dev, "%s (pipe %d :%s)\n", handler->name, nth, msg); - - /******************** spin lock ********************/ - usbhs_lock(priv, flags); ret = func(priv, uep, ctrl); - usbhs_unlock(priv, flags); - /******************** spin unlock ******************/ } -usbhsg_recip_run_handle_end: - usbhs_pkt_start(pipe); - return ret; } @@ -412,6 +499,12 @@ static int usbhsg_irq_ctrl_stage(struct usbhs_priv *priv, case USB_REQ_CLEAR_FEATURE: recip_handler = &req_clear_feature; break; + case USB_REQ_SET_FEATURE: + recip_handler = &req_set_feature; + break; + case USB_REQ_GET_STATUS: + recip_handler = &req_get_status; + break; } } @@ -439,24 +532,17 @@ static int usbhsg_pipe_disable(struct usbhsg_uep *uep) struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); struct usbhs_pkt *pkt; - usbhs_pipe_disable(pipe); - while (1) { pkt = usbhs_pkt_pop(pipe, NULL); if (!pkt) break; - } - return 0; -} + usbhsg_queue_pop(uep, usbhsg_pkt_to_ureq(pkt), -ECONNRESET); + } -static void usbhsg_uep_init(struct usbhsg_gpriv *gpriv) -{ - int i; - struct usbhsg_uep *uep; + usbhs_pipe_disable(pipe); - usbhsg_for_each_uep_with_dcp(uep, gpriv, i) - uep->pipe = NULL; + return 0; } /* @@ -515,7 +601,12 @@ static int usbhsg_ep_disable(struct usb_ep *ep) { struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); - return usbhsg_pipe_disable(uep); + usbhsg_pipe_disable(uep); + + uep->pipe->mod_private = NULL; + uep->pipe = NULL; + + return 0; } static struct usb_request *usbhsg_ep_alloc_request(struct usb_ep *ep, @@ -529,8 +620,6 @@ static struct usb_request *usbhsg_ep_alloc_request(struct usb_ep *ep, usbhs_pkt_init(usbhsg_ureq_to_pkt(ureq)); - ureq->req.dma = DMA_ADDR_INVALID; - return &ureq->req; } @@ -668,9 +757,8 @@ static int usbhsg_try_start(struct usbhs_priv *priv, u32 status) usbhs_pipe_init(priv, usbhsg_dma_map_ctrl); usbhs_fifo_init(priv); - usbhsg_uep_init(gpriv); - /* dcp init */ + /* dcp init instead of usbhsg_ep_enable() */ dcp->pipe = usbhs_dcp_malloc(priv); dcp->pipe->mod_private = dcp; usbhs_pipe_config_update(dcp->pipe, 0, 0, 64); @@ -681,9 +769,7 @@ static int usbhsg_try_start(struct usbhs_priv *priv, u32 status) * - function * - usb module */ - usbhs_sys_hispeed_ctrl(priv, 1); usbhs_sys_function_ctrl(priv, 1); - usbhs_sys_usb_ctrl(priv, 1); /* * enable irq callback @@ -731,11 +817,10 @@ static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status) gpriv->gadget.speed = USB_SPEED_UNKNOWN; /* disable sys */ - usbhs_sys_hispeed_ctrl(priv, 0); + usbhs_sys_set_test_mode(priv, 0); usbhs_sys_function_ctrl(priv, 0); - usbhs_sys_usb_ctrl(priv, 0); - usbhsg_pipe_disable(dcp); + usbhsg_ep_disable(&dcp->ep); dev_dbg(dev, "stop gadget\n"); @@ -755,12 +840,11 @@ static int usbhsg_gadget_start(struct usb_gadget *gadget, if (!driver || !driver->setup || - driver->speed < USB_SPEED_FULL) + driver->max_speed < USB_SPEED_FULL) return -EINVAL; /* first hook up the driver ... */ gpriv->driver = driver; - gpriv->gadget.dev.driver = &driver->driver; return usbhsg_try_start(priv, USBHSG_STATUS_REGISTERD); } @@ -771,12 +855,7 @@ static int usbhsg_gadget_stop(struct usb_gadget *gadget, struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); - if (!driver || - !driver->unbind) - return -EINVAL; - usbhsg_try_stop(priv, USBHSG_STATUS_REGISTERD); - gpriv->gadget.dev.driver = NULL; gpriv->driver = NULL; return 0; @@ -793,10 +872,34 @@ static int usbhsg_get_frame(struct usb_gadget *gadget) return usbhs_frame_get_num(priv); } -static struct usb_gadget_ops usbhsg_gadget_ops = { +static int usbhsg_pullup(struct usb_gadget *gadget, int is_on) +{ + struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); + struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); + + usbhs_sys_function_pullup(priv, is_on); + + return 0; +} + +static int usbhsg_set_selfpowered(struct usb_gadget *gadget, int is_self) +{ + struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); + + if (is_self) + usbhsg_status_set(gpriv, USBHSG_STATUS_SELF_POWERED); + else + usbhsg_status_clr(gpriv, USBHSG_STATUS_SELF_POWERED); + + return 0; +} + +static const struct usb_gadget_ops usbhsg_gadget_ops = { .get_frame = usbhsg_get_frame, + .set_selfpowered = usbhsg_set_selfpowered, .udc_start = usbhsg_gadget_start, .udc_stop = usbhsg_gadget_stop, + .pullup = usbhsg_pullup, }; static int usbhsg_start(struct usbhs_priv *priv) @@ -816,11 +919,6 @@ static int usbhsg_stop(struct usbhs_priv *priv) return usbhsg_try_stop(priv, USBHSG_STATUS_STARTED); } -static void usbhs_mod_gadget_release(struct device *pdev) -{ - /* do nothing */ -} - int usbhs_mod_gadget_probe(struct usbhs_priv *priv) { struct usbhsg_gpriv *gpriv; @@ -867,15 +965,10 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv) /* * init gadget */ - dev_set_name(&gpriv->gadget.dev, "gadget"); gpriv->gadget.dev.parent = dev; - gpriv->gadget.dev.release = usbhs_mod_gadget_release; gpriv->gadget.name = "renesas_usbhs_udc"; gpriv->gadget.ops = &usbhsg_gadget_ops; - gpriv->gadget.is_dualspeed = 1; - ret = device_register(&gpriv->gadget.dev); - if (ret < 0) - goto err_add_udc; + gpriv->gadget.max_speed = USB_SPEED_HIGH; INIT_LIST_HEAD(&gpriv->gadget.ep_list); @@ -884,6 +977,7 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv) */ usbhsg_for_each_uep_with_dcp(uep, gpriv, i) { uep->gpriv = gpriv; + uep->pipe = NULL; snprintf(uep->ep_name, EP_NAME_SIZE, "ep%d", i); uep->ep.name = uep->ep_name; @@ -893,28 +987,24 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv) /* init DCP */ if (usbhsg_is_dcp(uep)) { gpriv->gadget.ep0 = &uep->ep; - uep->ep.maxpacket = 64; + usb_ep_set_maxpacket_limit(&uep->ep, 64); } /* init normal pipe */ else { - uep->ep.maxpacket = 512; + usb_ep_set_maxpacket_limit(&uep->ep, 512); list_add_tail(&uep->ep.ep_list, &gpriv->gadget.ep_list); } } - usbhsg_controller_register(gpriv); - ret = usb_add_gadget_udc(dev, &gpriv->gadget); if (ret) - goto err_register; + goto err_add_udc; dev_info(dev, "gadget probed\n"); return 0; -err_register: - device_unregister(&gpriv->gadget.dev); err_add_udc: kfree(gpriv->uep); @@ -930,10 +1020,6 @@ void usbhs_mod_gadget_remove(struct usbhs_priv *priv) usb_del_gadget_udc(&gpriv->gadget); - device_unregister(&gpriv->gadget.dev); - - usbhsg_controller_unregister(gpriv); - kfree(gpriv->uep); kfree(gpriv); } diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c index 7955de58995..10e1ded9c9c 100644 --- a/drivers/usb/renesas_usbhs/mod_host.c +++ b/drivers/usb/renesas_usbhs/mod_host.c @@ -45,36 +45,34 @@ * * +--------+ pipes are reused for each uep. * | udev 1 |-+- [uep 0 (dcp) ] --+ pipe will be switched when - * +--------+ | | target device was changed + * +--------+ | | other device requested * +- [uep 1 (bulk)] --|---+ +--------------+ * | +--------------> | pipe0 (dcp) | - * +- [uep 2 (bulk)] --|---|---+ +--------------+ - * | | | | pipe1 (isoc) | - * +--------+ | | | +--------------+ - * | udev 2 |-+- [uep 0 (dcp) ] --+ +-- |------> | pipe2 (bulk) | - * +--------+ | | | | +--------------+ - * +- [uep 1 (int) ] --|-+ | +------> | pipe3 (bulk) | - * | | | | +--------------+ - * +--------+ | +-|---|------> | pipe4 (int) | - * | udev 3 |-+- [uep 0 (dcp) ] --+ | | +--------------+ - * +--------+ | | | | .... | - * +- [uep 1 (bulk)] ------+ | | .... | + * +- [uep 2 (bulk)] -@ | +--------------+ + * | | pipe1 (isoc) | + * +--------+ | +--------------+ + * | udev 2 |-+- [uep 0 (dcp) ] -@ +----------> | pipe2 (bulk) | + * +--------+ | +--------------+ + * +- [uep 1 (int) ] ----+ +------> | pipe3 (bulk) | + * | | +--------------+ + * +--------+ +-----|------> | pipe4 (int) | + * | udev 3 |-+- [uep 0 (dcp) ] -@ | +--------------+ + * +--------+ | | | .... | + * +- [uep 1 (bulk)] -@ | | .... | * | | * +- [uep 2 (bulk)]-----------+ + * + * @ : uep requested free pipe, but all have been used. + * now it is waiting for free pipe */ /* * struct */ -struct usbhsh_pipe_info { - unsigned int usr_cnt; /* see usbhsh_endpoint_alloc() */ -}; - struct usbhsh_request { struct urb *urb; struct usbhs_pkt pkt; - struct list_head ureq_link; /* see hpriv :: ureq_link_xxx */ }; struct usbhsh_device { @@ -83,11 +81,11 @@ struct usbhsh_device { }; struct usbhsh_ep { - struct usbhs_pipe *pipe; + struct usbhs_pipe *pipe; /* attached pipe */ struct usbhsh_device *udev; /* attached udev */ + struct usb_host_endpoint *ep; struct list_head ep_list; /* list to usbhsh_device */ - - int maxp; + unsigned int counter; /* pipe attach counter */ }; #define USBHSH_DEVICE_MAX 10 /* see DEVADDn / DCPMAXP / PIPEMAXP */ @@ -98,16 +96,9 @@ struct usbhsh_hpriv { struct usbhsh_device udev[USBHSH_DEVICE_MAX]; - struct usbhsh_pipe_info *pipe_info; - int pipe_size; - u32 port_stat; /* USB_PORT_STAT_xxx */ struct completion setup_ack_done; - - /* see usbhsh_req_alloc/free */ - struct list_head ureq_link_active; - struct list_head ureq_link_free; }; @@ -119,21 +110,10 @@ static const char usbhsh_hcd_name[] = "renesas_usbhs host"; #define usbhsh_priv_to_hpriv(priv) \ container_of(usbhs_mod_get(priv, USBHS_HOST), struct usbhsh_hpriv, mod) -#define __usbhsh_for_each_hpipe(start, pos, h, i) \ - for (i = start, pos = (h)->hpipe + i; \ - i < (h)->hpipe_size; \ - i++, pos = (h)->hpipe + i) - -#define usbhsh_for_each_hpipe(pos, hpriv, i) \ - __usbhsh_for_each_hpipe(1, pos, hpriv, i) - -#define usbhsh_for_each_hpipe_with_dcp(pos, hpriv, i) \ - __usbhsh_for_each_hpipe(0, pos, hpriv, i) - #define __usbhsh_for_each_udev(start, pos, h, i) \ - for (i = start, pos = (h)->udev + i; \ - i < USBHSH_DEVICE_MAX; \ - i++, pos = (h)->udev + i) + for ((i) = start; \ + ((i) < USBHSH_DEVICE_MAX) && ((pos) = (h)->udev + (i)); \ + (i)++) #define usbhsh_for_each_udev(pos, hpriv, i) \ __usbhsh_for_each_udev(1, pos, hpriv, i) @@ -152,15 +132,20 @@ static const char usbhsh_hcd_name[] = "renesas_usbhs host"; #define usbhsh_ep_to_uep(u) ((u)->hcpriv) #define usbhsh_uep_to_pipe(u) ((u)->pipe) #define usbhsh_uep_to_udev(u) ((u)->udev) +#define usbhsh_uep_to_ep(u) ((u)->ep) + #define usbhsh_urb_to_ureq(u) ((u)->hcpriv) #define usbhsh_urb_to_usbv(u) ((u)->dev) #define usbhsh_usbv_to_udev(d) dev_get_drvdata(&(d)->dev) #define usbhsh_udev_to_usbv(h) ((h)->usbv) +#define usbhsh_udev_is_used(h) usbhsh_udev_to_usbv(h) -#define usbhsh_pipe_info(p) ((p)->mod_private) +#define usbhsh_pipe_to_uep(p) ((p)->mod_private) +#define usbhsh_device_parent(d) (usbhsh_usbv_to_udev((d)->usbv->parent)) +#define usbhsh_device_hubport(d) ((d)->usbv->portnum) #define usbhsh_device_number(h, d) ((int)((d) - (h)->udev)) #define usbhsh_device_nth(h, d) ((h)->udev + d) #define usbhsh_device0(h) usbhsh_device_nth(h, 0) @@ -170,38 +155,13 @@ static const char usbhsh_hcd_name[] = "renesas_usbhs host"; #define usbhsh_port_stat_clear(h, s) ((h)->port_stat &= ~(s)) #define usbhsh_port_stat_get(h) ((h)->port_stat) -#define usbhsh_pkt_to_req(p) \ +#define usbhsh_pkt_to_ureq(p) \ container_of((void *)p, struct usbhsh_request, pkt) /* * req alloc/free */ -static void usbhsh_req_list_init(struct usbhsh_hpriv *hpriv) -{ - INIT_LIST_HEAD(&hpriv->ureq_link_active); - INIT_LIST_HEAD(&hpriv->ureq_link_free); -} - -static void usbhsh_req_list_quit(struct usbhsh_hpriv *hpriv) -{ - struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); - struct device *dev = usbhsh_hcd_to_dev(hcd); - struct usbhsh_request *ureq, *next; - - /* kfree all active ureq */ - list_for_each_entry_safe(ureq, next, - &hpriv->ureq_link_active, - ureq_link) { - dev_err(dev, "active ureq (%p) is force freed\n", ureq); - kfree(ureq); - } - - /* kfree all free ureq */ - list_for_each_entry_safe(ureq, next, &hpriv->ureq_link_free, ureq_link) - kfree(ureq); -} - -static struct usbhsh_request *usbhsh_req_alloc(struct usbhsh_hpriv *hpriv, +static struct usbhsh_request *usbhsh_ureq_alloc(struct usbhsh_hpriv *hpriv, struct urb *urb, gfp_t mem_flags) { @@ -209,270 +169,473 @@ static struct usbhsh_request *usbhsh_req_alloc(struct usbhsh_hpriv *hpriv, struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); struct device *dev = usbhs_priv_to_dev(priv); - if (list_empty(&hpriv->ureq_link_free)) { - /* - * create new one if there is no free ureq - */ - ureq = kzalloc(sizeof(struct usbhsh_request), mem_flags); - if (ureq) - INIT_LIST_HEAD(&ureq->ureq_link); - } else { - /* - * reuse "free" ureq if exist - */ - ureq = list_entry(hpriv->ureq_link_free.next, - struct usbhsh_request, - ureq_link); - if (ureq) - list_del_init(&ureq->ureq_link); - } - + ureq = kzalloc(sizeof(struct usbhsh_request), mem_flags); if (!ureq) { dev_err(dev, "ureq alloc fail\n"); return NULL; } usbhs_pkt_init(&ureq->pkt); - - /* - * push it to "active" list - */ - list_add_tail(&ureq->ureq_link, &hpriv->ureq_link_active); ureq->urb = urb; + usbhsh_urb_to_ureq(urb) = ureq; return ureq; } -static void usbhsh_req_free(struct usbhsh_hpriv *hpriv, +static void usbhsh_ureq_free(struct usbhsh_hpriv *hpriv, struct usbhsh_request *ureq) { - struct usbhs_pkt *pkt = &ureq->pkt; + usbhsh_urb_to_ureq(ureq->urb) = NULL; + ureq->urb = NULL; - usbhs_pkt_init(pkt); + kfree(ureq); +} +/* + * status + */ +static int usbhsh_is_running(struct usbhsh_hpriv *hpriv) +{ /* - * removed from "active" list, - * and push it to "free" list + * we can decide some device is attached or not + * by checking mod.irq_attch + * see + * usbhsh_irq_attch() + * usbhsh_irq_dtch() */ - ureq->urb = NULL; - list_del_init(&ureq->ureq_link); - list_add_tail(&ureq->ureq_link, &hpriv->ureq_link_free); + return (hpriv->mod.irq_attch == NULL); } /* - * device control + * pipe control */ - -static int usbhsh_device_has_endpoint(struct usbhsh_device *udev) +static void usbhsh_endpoint_sequence_save(struct usbhsh_hpriv *hpriv, + struct urb *urb, + struct usbhs_pkt *pkt) { - return !list_empty(&udev->ep_list_head); + int len = urb->actual_length; + int maxp = usb_endpoint_maxp(&urb->ep->desc); + int t = 0; + + /* DCP is out of sequence control */ + if (usb_pipecontrol(urb->pipe)) + return; + + /* + * renesas_usbhs pipe has a limitation in a number. + * So, driver should re-use the limited pipe for each device/endpoint. + * DATA0/1 sequence should be saved for it. + * see [image of mod_host] + * [HARDWARE LIMITATION] + */ + + /* + * next sequence depends on actual_length + * + * ex) actual_length = 1147, maxp = 512 + * data0 : 512 + * data1 : 512 + * data0 : 123 + * data1 is the next sequence + */ + t = len / maxp; + if (len % maxp) + t++; + if (pkt->zero) + t++; + t %= 2; + + if (t) + usb_dotoggle(urb->dev, + usb_pipeendpoint(urb->pipe), + usb_pipeout(urb->pipe)); } -static struct usbhsh_device *usbhsh_device_alloc(struct usbhsh_hpriv *hpriv, - struct urb *urb) +static struct usbhsh_device *usbhsh_device_get(struct usbhsh_hpriv *hpriv, + struct urb *urb); + +static int usbhsh_pipe_attach(struct usbhsh_hpriv *hpriv, + struct urb *urb) { - struct usbhsh_device *udev = NULL; - struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); - struct device *dev = usbhsh_hcd_to_dev(hcd); - struct usb_device *usbv = usbhsh_urb_to_usbv(urb); struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); - int i; + struct usbhsh_ep *uep = usbhsh_ep_to_uep(urb->ep); + struct usbhsh_device *udev = usbhsh_device_get(hpriv, urb); + struct usbhs_pipe *pipe; + struct usb_endpoint_descriptor *desc = &urb->ep->desc; + struct device *dev = usbhs_priv_to_dev(priv); + unsigned long flags; + int dir_in_req = !!usb_pipein(urb->pipe); + int is_dcp = usb_endpoint_xfer_control(desc); + int i, dir_in; + int ret = -EBUSY; + + /******************** spin lock ********************/ + usbhs_lock(priv, flags); /* - * device 0 + * if uep has been attached to pipe, + * reuse it */ - if (0 == usb_pipedevice(urb->pipe)) { - udev = usbhsh_device0(hpriv); - goto usbhsh_device_find; + if (usbhsh_uep_to_pipe(uep)) { + ret = 0; + goto usbhsh_pipe_attach_done; } - /* - * find unused device - */ - usbhsh_for_each_udev(udev, hpriv, i) { - if (usbhsh_udev_to_usbv(udev)) + usbhs_for_each_pipe_with_dcp(pipe, priv, i) { + + /* check pipe type */ + if (!usbhs_pipe_type_is(pipe, usb_endpoint_type(desc))) continue; - goto usbhsh_device_find; - } - dev_err(dev, "no free usbhsh_device\n"); + /* check pipe direction if normal pipe */ + if (!is_dcp) { + dir_in = !!usbhs_pipe_is_dir_in(pipe); + if (0 != (dir_in - dir_in_req)) + continue; + } - return NULL; + /* check pipe is free */ + if (usbhsh_pipe_to_uep(pipe)) + continue; -usbhsh_device_find: - if (usbhsh_device_has_endpoint(udev)) - dev_warn(dev, "udev have old endpoint\n"); + /* + * attach pipe to uep + * + * usbhs_pipe_config_update() should be called after + * usbhs_set_device_config() + * see + * DCPMAXP/PIPEMAXP + */ + usbhsh_uep_to_pipe(uep) = pipe; + usbhsh_pipe_to_uep(pipe) = uep; - /* uep will be attached */ - INIT_LIST_HEAD(&udev->ep_list_head); + usbhs_pipe_config_update(pipe, + usbhsh_device_number(hpriv, udev), + usb_endpoint_num(desc), + usb_endpoint_maxp(desc)); - /* - * usbhsh_usbv_to_udev() - * usbhsh_udev_to_usbv() - * will be enable - */ - dev_set_drvdata(&usbv->dev, udev); - udev->usbv = usbv; + dev_dbg(dev, "%s [%d-%d(%s:%s)]\n", __func__, + usbhsh_device_number(hpriv, udev), + usb_endpoint_num(desc), + usbhs_pipe_name(pipe), + dir_in_req ? "in" : "out"); - /* set device config */ - usbhs_set_device_speed(priv, - usbhsh_device_number(hpriv, udev), - usbhsh_device_number(hpriv, udev), - 0, /* FIXME no parent */ - usbv->speed); + ret = 0; + break; + } - dev_dbg(dev, "%s [%d](%p)\n", __func__, - usbhsh_device_number(hpriv, udev), udev); +usbhsh_pipe_attach_done: + if (0 == ret) + uep->counter++; - return udev; + usbhs_unlock(priv, flags); + /******************** spin unlock ******************/ + + return ret; } -static void usbhsh_device_free(struct usbhsh_hpriv *hpriv, - struct usbhsh_device *udev) +static void usbhsh_pipe_detach(struct usbhsh_hpriv *hpriv, + struct usbhsh_ep *uep) { - struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); - struct device *dev = usbhsh_hcd_to_dev(hcd); - struct usb_device *usbv = usbhsh_udev_to_usbv(udev); + struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); + struct usbhs_pipe *pipe; + struct device *dev = usbhs_priv_to_dev(priv); + unsigned long flags; - dev_dbg(dev, "%s [%d](%p)\n", __func__, - usbhsh_device_number(hpriv, udev), udev); + if (unlikely(!uep)) { + dev_err(dev, "no uep\n"); + return; + } - if (usbhsh_device_has_endpoint(udev)) - dev_warn(dev, "udev still have endpoint\n"); + /******************** spin lock ********************/ + usbhs_lock(priv, flags); - /* - * usbhsh_usbv_to_udev() - * usbhsh_udev_to_usbv() - * will be disable - */ - dev_set_drvdata(&usbv->dev, NULL); - udev->usbv = NULL; + pipe = usbhsh_uep_to_pipe(uep); + + if (unlikely(!pipe)) { + dev_err(dev, "uep doens't have pipe\n"); + } else if (1 == uep->counter--) { /* last user */ + struct usb_host_endpoint *ep = usbhsh_uep_to_ep(uep); + struct usbhsh_device *udev = usbhsh_uep_to_udev(uep); + + /* detach pipe from uep */ + usbhsh_uep_to_pipe(uep) = NULL; + usbhsh_pipe_to_uep(pipe) = NULL; + + dev_dbg(dev, "%s [%d-%d(%s)]\n", __func__, + usbhsh_device_number(hpriv, udev), + usb_endpoint_num(&ep->desc), + usbhs_pipe_name(pipe)); + } + + usbhs_unlock(priv, flags); + /******************** spin unlock ******************/ } /* - * end-point control + * endpoint control */ -struct usbhsh_ep *usbhsh_endpoint_alloc(struct usbhsh_hpriv *hpriv, - struct usbhsh_device *udev, - struct usb_host_endpoint *ep, - int dir_in_req, - gfp_t mem_flags) +static int usbhsh_endpoint_attach(struct usbhsh_hpriv *hpriv, + struct urb *urb, + gfp_t mem_flags) { struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); - struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); + struct usbhsh_device *udev = usbhsh_device_get(hpriv, urb); + struct usb_host_endpoint *ep = urb->ep; struct usbhsh_ep *uep; - struct usbhsh_pipe_info *info; - struct usbhs_pipe *pipe, *best_pipe; - struct device *dev = usbhsh_hcd_to_dev(hcd); + struct device *dev = usbhs_priv_to_dev(priv); struct usb_endpoint_descriptor *desc = &ep->desc; - int type, i, dir_in; - unsigned int min_usr; - - dir_in_req = !!dir_in_req; + unsigned long flags; uep = kzalloc(sizeof(struct usbhsh_ep), mem_flags); if (!uep) { dev_err(dev, "usbhsh_ep alloc fail\n"); - return NULL; + return -ENOMEM; } - if (usb_endpoint_xfer_control(desc)) { - best_pipe = usbhsh_hpriv_to_dcp(hpriv); - goto usbhsh_endpoint_alloc_find_pipe; + /******************** spin lock ********************/ + usbhs_lock(priv, flags); + + /* + * init endpoint + */ + uep->counter = 0; + INIT_LIST_HEAD(&uep->ep_list); + list_add_tail(&uep->ep_list, &udev->ep_list_head); + + usbhsh_uep_to_udev(uep) = udev; + usbhsh_uep_to_ep(uep) = ep; + usbhsh_ep_to_uep(ep) = uep; + + usbhs_unlock(priv, flags); + /******************** spin unlock ******************/ + + dev_dbg(dev, "%s [%d-%d]\n", __func__, + usbhsh_device_number(hpriv, udev), + usb_endpoint_num(desc)); + + return 0; +} + +static void usbhsh_endpoint_detach(struct usbhsh_hpriv *hpriv, + struct usb_host_endpoint *ep) +{ + struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); + struct device *dev = usbhs_priv_to_dev(priv); + struct usbhsh_ep *uep = usbhsh_ep_to_uep(ep); + unsigned long flags; + + if (!uep) + return; + + dev_dbg(dev, "%s [%d-%d]\n", __func__, + usbhsh_device_number(hpriv, usbhsh_uep_to_udev(uep)), + usb_endpoint_num(&ep->desc)); + + if (usbhsh_uep_to_pipe(uep)) + usbhsh_pipe_detach(hpriv, uep); + + /******************** spin lock ********************/ + usbhs_lock(priv, flags); + + /* remove this endpoint from udev */ + list_del_init(&uep->ep_list); + + usbhsh_uep_to_udev(uep) = NULL; + usbhsh_uep_to_ep(uep) = NULL; + usbhsh_ep_to_uep(ep) = NULL; + + usbhs_unlock(priv, flags); + /******************** spin unlock ******************/ + + kfree(uep); +} + +static void usbhsh_endpoint_detach_all(struct usbhsh_hpriv *hpriv, + struct usbhsh_device *udev) +{ + struct usbhsh_ep *uep, *next; + + list_for_each_entry_safe(uep, next, &udev->ep_list_head, ep_list) + usbhsh_endpoint_detach(hpriv, usbhsh_uep_to_ep(uep)); +} + +/* + * device control + */ +static int usbhsh_connected_to_rhdev(struct usb_hcd *hcd, + struct usbhsh_device *udev) +{ + struct usb_device *usbv = usbhsh_udev_to_usbv(udev); + + return hcd->self.root_hub == usbv->parent; +} + +static int usbhsh_device_has_endpoint(struct usbhsh_device *udev) +{ + return !list_empty(&udev->ep_list_head); +} + +static struct usbhsh_device *usbhsh_device_get(struct usbhsh_hpriv *hpriv, + struct urb *urb) +{ + struct usb_device *usbv = usbhsh_urb_to_usbv(urb); + struct usbhsh_device *udev = usbhsh_usbv_to_udev(usbv); + + /* usbhsh_device_attach() is still not called */ + if (!udev) + return NULL; + + /* if it is device0, return it */ + if (0 == usb_pipedevice(urb->pipe)) + return usbhsh_device0(hpriv); + + /* return attached device */ + return udev; +} + +static struct usbhsh_device *usbhsh_device_attach(struct usbhsh_hpriv *hpriv, + struct urb *urb) +{ + struct usbhsh_device *udev = NULL; + struct usbhsh_device *udev0 = usbhsh_device0(hpriv); + struct usbhsh_device *pos; + struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); + struct device *dev = usbhsh_hcd_to_dev(hcd); + struct usb_device *usbv = usbhsh_urb_to_usbv(urb); + struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); + unsigned long flags; + u16 upphub, hubport; + int i; + + /* + * This function should be called only while urb is pointing to device0. + * It will attach unused usbhsh_device to urb (usbv), + * and initialize device0. + * You can use usbhsh_device_get() to get "current" udev, + * and usbhsh_usbv_to_udev() is for "attached" udev. + */ + if (0 != usb_pipedevice(urb->pipe)) { + dev_err(dev, "%s fail: urb isn't pointing device0\n", __func__); + return NULL; } + /******************** spin lock ********************/ + usbhs_lock(priv, flags); + /* - * find best pipe for endpoint - * see - * HARDWARE LIMITATION + * find unused device */ - type = usb_endpoint_type(desc); - min_usr = ~0; - best_pipe = NULL; - usbhs_for_each_pipe(pipe, priv, i) { - if (!usbhs_pipe_type_is(pipe, type)) + usbhsh_for_each_udev(pos, hpriv, i) { + if (usbhsh_udev_is_used(pos)) continue; + udev = pos; + break; + } - dir_in = !!usbhs_pipe_is_dir_in(pipe); - if (0 != (dir_in - dir_in_req)) - continue; + if (udev) { + /* + * usbhsh_usbv_to_udev() + * usbhsh_udev_to_usbv() + * will be enable + */ + dev_set_drvdata(&usbv->dev, udev); + udev->usbv = usbv; + } - info = usbhsh_pipe_info(pipe); + usbhs_unlock(priv, flags); + /******************** spin unlock ******************/ - if (min_usr > info->usr_cnt) { - min_usr = info->usr_cnt; - best_pipe = pipe; - } + if (!udev) { + dev_err(dev, "no free usbhsh_device\n"); + return NULL; } - if (unlikely(!best_pipe)) { - dev_err(dev, "couldn't find best pipe\n"); - kfree(uep); - return NULL; + if (usbhsh_device_has_endpoint(udev)) { + dev_warn(dev, "udev have old endpoint\n"); + usbhsh_endpoint_detach_all(hpriv, udev); } -usbhsh_endpoint_alloc_find_pipe: + + if (usbhsh_device_has_endpoint(udev0)) { + dev_warn(dev, "udev0 have old endpoint\n"); + usbhsh_endpoint_detach_all(hpriv, udev0); + } + + /* uep will be attached */ + INIT_LIST_HEAD(&udev0->ep_list_head); + INIT_LIST_HEAD(&udev->ep_list_head); + /* - * init uep + * set device0 config */ - uep->pipe = best_pipe; - uep->maxp = usb_endpoint_maxp(desc); - usbhsh_uep_to_udev(uep) = udev; - usbhsh_ep_to_uep(ep) = uep; + usbhs_set_device_config(priv, + 0, 0, 0, usbv->speed); /* - * update pipe user count + * set new device config */ - info = usbhsh_pipe_info(best_pipe); - info->usr_cnt++; + upphub = 0; + hubport = 0; + if (!usbhsh_connected_to_rhdev(hcd, udev)) { + /* if udev is not connected to rhdev, it means parent is Hub */ + struct usbhsh_device *parent = usbhsh_device_parent(udev); - /* init this endpoint, and attach it to udev */ - INIT_LIST_HEAD(&uep->ep_list); - list_add_tail(&uep->ep_list, &udev->ep_list_head); + upphub = usbhsh_device_number(hpriv, parent); + hubport = usbhsh_device_hubport(udev); - /* - * usbhs_pipe_config_update() should be called after - * usbhs_device_config() - * see - * DCPMAXP/PIPEMAXP - */ - usbhs_pipe_sequence_data0(uep->pipe); - usbhs_pipe_config_update(uep->pipe, - usbhsh_device_number(hpriv, udev), - usb_endpoint_num(desc), - uep->maxp); + dev_dbg(dev, "%s connecte to Hub [%d:%d](%p)\n", __func__, + upphub, hubport, parent); + } - dev_dbg(dev, "%s [%d-%s](%p)\n", __func__, - usbhsh_device_number(hpriv, udev), - usbhs_pipe_name(uep->pipe), uep); + usbhs_set_device_config(priv, + usbhsh_device_number(hpriv, udev), + upphub, hubport, usbv->speed); - return uep; + dev_dbg(dev, "%s [%d](%p)\n", __func__, + usbhsh_device_number(hpriv, udev), udev); + + return udev; } -void usbhsh_endpoint_free(struct usbhsh_hpriv *hpriv, - struct usb_host_endpoint *ep) +static void usbhsh_device_detach(struct usbhsh_hpriv *hpriv, + struct usbhsh_device *udev) { + struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); - struct device *dev = usbhs_priv_to_dev(priv); - struct usbhsh_ep *uep = usbhsh_ep_to_uep(ep); - struct usbhsh_pipe_info *info; + struct device *dev = usbhsh_hcd_to_dev(hcd); + struct usb_device *usbv = usbhsh_udev_to_usbv(udev); + unsigned long flags; - if (!uep) - return; + dev_dbg(dev, "%s [%d](%p)\n", __func__, + usbhsh_device_number(hpriv, udev), udev); - dev_dbg(dev, "%s [%d-%s](%p)\n", __func__, - usbhsh_device_number(hpriv, usbhsh_uep_to_udev(uep)), - usbhs_pipe_name(uep->pipe), uep); + if (usbhsh_device_has_endpoint(udev)) { + dev_warn(dev, "udev still have endpoint\n"); + usbhsh_endpoint_detach_all(hpriv, udev); + } - info = usbhsh_pipe_info(uep->pipe); - info->usr_cnt--; + /* + * There is nothing to do if it is device0. + * see + * usbhsh_device_attach() + * usbhsh_device_get() + */ + if (0 == usbhsh_device_number(hpriv, udev)) + return; - /* remove this endpoint from udev */ - list_del_init(&uep->ep_list); + /******************** spin lock ********************/ + usbhs_lock(priv, flags); - usbhsh_uep_to_udev(uep) = NULL; - usbhsh_ep_to_uep(ep) = NULL; + /* + * usbhsh_usbv_to_udev() + * usbhsh_udev_to_usbv() + * will be disable + */ + dev_set_drvdata(&usbv->dev, NULL); + udev->usbv = NULL; - kfree(uep); + usbhs_unlock(priv, flags); + /******************** spin unlock ******************/ } /* @@ -480,11 +643,12 @@ void usbhsh_endpoint_free(struct usbhsh_hpriv *hpriv, */ static void usbhsh_queue_done(struct usbhs_priv *priv, struct usbhs_pkt *pkt) { - struct usbhsh_request *ureq = usbhsh_pkt_to_req(pkt); + struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt); struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); struct urb *urb = ureq->urb; struct device *dev = usbhs_priv_to_dev(priv); + int status = 0; dev_dbg(dev, "%s\n", __func__); @@ -493,56 +657,105 @@ static void usbhsh_queue_done(struct usbhs_priv *priv, struct usbhs_pkt *pkt) return; } + if (!usbhsh_is_running(hpriv)) + status = -ESHUTDOWN; + urb->actual_length = pkt->actual; - usbhsh_req_free(hpriv, ureq); - usbhsh_urb_to_ureq(urb) = NULL; + + usbhsh_endpoint_sequence_save(hpriv, urb, pkt); + usbhsh_ureq_free(hpriv, ureq); + + usbhsh_pipe_detach(hpriv, usbhsh_ep_to_uep(urb->ep)); usb_hcd_unlink_urb_from_ep(hcd, urb); - usb_hcd_giveback_urb(hcd, urb, 0); + usb_hcd_giveback_urb(hcd, urb, status); } static int usbhsh_queue_push(struct usb_hcd *hcd, - struct usbhs_pipe *pipe, - struct urb *urb) + struct urb *urb, + gfp_t mem_flags) { - struct usbhsh_request *ureq = usbhsh_urb_to_ureq(urb); - struct usbhs_pkt *pkt = &ureq->pkt; + struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); + struct usbhsh_ep *uep = usbhsh_ep_to_uep(urb->ep); + struct usbhs_pipe *pipe = usbhsh_uep_to_pipe(uep); struct device *dev = usbhsh_hcd_to_dev(hcd); + struct usbhsh_request *ureq; void *buf; - int len; + int len, sequence; if (usb_pipeisoc(urb->pipe)) { dev_err(dev, "pipe iso is not supported now\n"); return -EIO; } + /* this ureq will be freed on usbhsh_queue_done() */ + ureq = usbhsh_ureq_alloc(hpriv, urb, mem_flags); + if (unlikely(!ureq)) { + dev_err(dev, "ureq alloc fail\n"); + return -ENOMEM; + } + if (usb_pipein(urb->pipe)) - pipe->handler = &usbhs_fifo_pio_pop_handler; + pipe->handler = &usbhs_fifo_dma_pop_handler; else - pipe->handler = &usbhs_fifo_pio_push_handler; + pipe->handler = &usbhs_fifo_dma_push_handler; buf = (void *)(urb->transfer_buffer + urb->actual_length); len = urb->transfer_buffer_length - urb->actual_length; + sequence = usb_gettoggle(urb->dev, + usb_pipeendpoint(urb->pipe), + usb_pipeout(urb->pipe)); + dev_dbg(dev, "%s\n", __func__); - usbhs_pkt_push(pipe, pkt, usbhsh_queue_done, - buf, len, (urb->transfer_flags & URB_ZERO_PACKET)); + usbhs_pkt_push(pipe, &ureq->pkt, usbhsh_queue_done, + buf, len, (urb->transfer_flags & URB_ZERO_PACKET), + sequence); + usbhs_pkt_start(pipe); return 0; } +static void usbhsh_queue_force_pop(struct usbhs_priv *priv, + struct usbhs_pipe *pipe) +{ + struct usbhs_pkt *pkt; + + while (1) { + pkt = usbhs_pkt_pop(pipe, NULL); + if (!pkt) + break; + + /* + * if all packet are gone, usbhsh_endpoint_disable() + * will be called. + * then, attached device/endpoint/pipe will be detached + */ + usbhsh_queue_done(priv, pkt); + } +} + +static void usbhsh_queue_force_pop_all(struct usbhs_priv *priv) +{ + struct usbhs_pipe *pos; + int i; + + usbhs_for_each_pipe_with_dcp(pos, priv, i) + usbhsh_queue_force_pop(priv, pos); +} + /* * DCP setup stage */ static int usbhsh_is_request_address(struct urb *urb) { - struct usb_ctrlrequest *cmd; + struct usb_ctrlrequest *req; - cmd = (struct usb_ctrlrequest *)urb->setup_packet; + req = (struct usb_ctrlrequest *)urb->setup_packet; - if ((DeviceOutRequest == cmd->bRequestType << 8) && - (USB_REQ_SET_ADDRESS == cmd->bRequest)) + if ((DeviceOutRequest == req->bRequestType << 8) && + (USB_REQ_SET_ADDRESS == req->bRequest)) return 1; else return 0; @@ -570,11 +783,15 @@ static void usbhsh_setup_stage_packet_push(struct usbhsh_hpriv *hpriv, /* * renesas_usbhs can not use original usb address. * see HARDWARE LIMITATION. - * modify usb address here. + * modify usb address here to use attached device. + * see usbhsh_device_attach() */ if (usbhsh_is_request_address(urb)) { - /* FIXME */ - req.wValue = 1; + struct usb_device *usbv = usbhsh_urb_to_usbv(urb); + struct usbhsh_device *udev = usbhsh_usbv_to_udev(usbv); + + /* udev is a attached device */ + req.wValue = usbhsh_device_number(hpriv, udev); dev_dbg(dev, "create new address - %d\n", req.wValue); } @@ -595,82 +812,80 @@ static void usbhsh_setup_stage_packet_push(struct usbhsh_hpriv *hpriv, static void usbhsh_data_stage_packet_done(struct usbhs_priv *priv, struct usbhs_pkt *pkt) { - struct usbhsh_request *ureq = usbhsh_pkt_to_req(pkt); + struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt); struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); - struct urb *urb = ureq->urb; /* this ureq was connected to urb when usbhsh_urb_enqueue() */ - usbhsh_req_free(hpriv, ureq); - usbhsh_urb_to_ureq(urb) = NULL; + usbhsh_ureq_free(hpriv, ureq); } -static void usbhsh_data_stage_packet_push(struct usbhsh_hpriv *hpriv, - struct urb *urb, - struct usbhs_pipe *pipe) +static int usbhsh_data_stage_packet_push(struct usbhsh_hpriv *hpriv, + struct urb *urb, + struct usbhs_pipe *pipe, + gfp_t mem_flags) + { struct usbhsh_request *ureq; - struct usbhs_pkt *pkt; - /* - * FIXME - * - * data stage uses ureq which is connected to urb - * see usbhsh_urb_enqueue() :: alloc new request. - * it will be freed in usbhsh_data_stage_packet_done() - */ - ureq = usbhsh_urb_to_ureq(urb); - pkt = &ureq->pkt; + /* this ureq will be freed on usbhsh_data_stage_packet_done() */ + ureq = usbhsh_ureq_alloc(hpriv, urb, mem_flags); + if (unlikely(!ureq)) + return -ENOMEM; if (usb_pipein(urb->pipe)) pipe->handler = &usbhs_dcp_data_stage_in_handler; else pipe->handler = &usbhs_dcp_data_stage_out_handler; - usbhs_pkt_push(pipe, pkt, + usbhs_pkt_push(pipe, &ureq->pkt, usbhsh_data_stage_packet_done, urb->transfer_buffer, urb->transfer_buffer_length, - (urb->transfer_flags & URB_ZERO_PACKET)); + (urb->transfer_flags & URB_ZERO_PACKET), + -1); + + return 0; } /* * DCP status stage */ -static void usbhsh_status_stage_packet_push(struct usbhsh_hpriv *hpriv, +static int usbhsh_status_stage_packet_push(struct usbhsh_hpriv *hpriv, struct urb *urb, - struct usbhs_pipe *pipe) + struct usbhs_pipe *pipe, + gfp_t mem_flags) { struct usbhsh_request *ureq; - struct usbhs_pkt *pkt; - /* - * FIXME - * - * status stage uses allocated ureq. - * it will be freed on usbhsh_queue_done() - */ - ureq = usbhsh_req_alloc(hpriv, urb, GFP_KERNEL); - pkt = &ureq->pkt; + /* This ureq will be freed on usbhsh_queue_done() */ + ureq = usbhsh_ureq_alloc(hpriv, urb, mem_flags); + if (unlikely(!ureq)) + return -ENOMEM; if (usb_pipein(urb->pipe)) pipe->handler = &usbhs_dcp_status_stage_in_handler; else pipe->handler = &usbhs_dcp_status_stage_out_handler; - usbhs_pkt_push(pipe, pkt, + usbhs_pkt_push(pipe, &ureq->pkt, usbhsh_queue_done, NULL, urb->transfer_buffer_length, - 0); + 0, -1); + + return 0; } static int usbhsh_dcp_queue_push(struct usb_hcd *hcd, - struct usbhsh_hpriv *hpriv, - struct usbhs_pipe *pipe, - struct urb *urb) + struct urb *urb, + gfp_t mflags) { + struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); + struct usbhsh_ep *uep = usbhsh_ep_to_uep(urb->ep); + struct usbhs_pipe *pipe = usbhsh_uep_to_pipe(uep); struct device *dev = usbhsh_hcd_to_dev(hcd); + int ret; dev_dbg(dev, "%s\n", __func__); @@ -686,13 +901,22 @@ static int usbhsh_dcp_queue_push(struct usb_hcd *hcd, * * It is pushed only when urb has buffer. */ - if (urb->transfer_buffer_length) - usbhsh_data_stage_packet_push(hpriv, urb, pipe); + if (urb->transfer_buffer_length) { + ret = usbhsh_data_stage_packet_push(hpriv, urb, pipe, mflags); + if (ret < 0) { + dev_err(dev, "data stage failed\n"); + return ret; + } + } /* * status stage */ - usbhsh_status_stage_packet_push(hpriv, urb, pipe); + ret = usbhsh_status_stage_packet_push(hpriv, urb, pipe, mflags); + if (ret < 0) { + dev_err(dev, "status stage failed\n"); + return ret; + } /* * start pushed packets @@ -707,6 +931,19 @@ static int usbhsh_dcp_queue_push(struct usb_hcd *hcd, */ static int usbhsh_dma_map_ctrl(struct usbhs_pkt *pkt, int map) { + if (map) { + struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt); + struct urb *urb = ureq->urb; + + /* it can not use scatter/gather */ + if (urb->num_sgs) + return -EINVAL; + + pkt->dma = urb->transfer_dma; + if (!pkt->dma) + return -EINVAL; + } + return 0; } @@ -729,71 +966,75 @@ static int usbhsh_urb_enqueue(struct usb_hcd *hcd, struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); struct device *dev = usbhs_priv_to_dev(priv); - struct usb_device *usbv = usbhsh_urb_to_usbv(urb); struct usb_host_endpoint *ep = urb->ep; - struct usbhsh_request *ureq; - struct usbhsh_device *udev, *new_udev = NULL; - struct usbhs_pipe *pipe; - struct usbhsh_ep *uep; + struct usbhsh_device *new_udev = NULL; int is_dir_in = usb_pipein(urb->pipe); - int ret; dev_dbg(dev, "%s (%s)\n", __func__, is_dir_in ? "in" : "out"); + if (!usbhsh_is_running(hpriv)) { + ret = -EIO; + dev_err(dev, "host is not running\n"); + goto usbhsh_urb_enqueue_error_not_linked; + } + ret = usb_hcd_link_urb_to_ep(hcd, urb); - if (ret) + if (ret) { + dev_err(dev, "urb link failed\n"); goto usbhsh_urb_enqueue_error_not_linked; + } /* - * get udev + * attach udev if needed + * see [image of mod_host] */ - udev = usbhsh_usbv_to_udev(usbv); - if (!udev) { - new_udev = usbhsh_device_alloc(hpriv, urb); - if (!new_udev) + if (!usbhsh_device_get(hpriv, urb)) { + new_udev = usbhsh_device_attach(hpriv, urb); + if (!new_udev) { + ret = -EIO; + dev_err(dev, "device attach failed\n"); goto usbhsh_urb_enqueue_error_not_linked; - - udev = new_udev; + } } /* - * get uep + * attach endpoint if needed + * see [image of mod_host] */ - uep = usbhsh_ep_to_uep(ep); - if (!uep) { - uep = usbhsh_endpoint_alloc(hpriv, udev, ep, - is_dir_in, mem_flags); - if (!uep) + if (!usbhsh_ep_to_uep(ep)) { + ret = usbhsh_endpoint_attach(hpriv, urb, mem_flags); + if (ret < 0) { + dev_err(dev, "endpoint attach failed\n"); goto usbhsh_urb_enqueue_error_free_device; + } } - pipe = usbhsh_uep_to_pipe(uep); /* - * alloc new request + * attach pipe to endpoint + * see [image of mod_host] */ - ureq = usbhsh_req_alloc(hpriv, urb, mem_flags); - if (unlikely(!ureq)) { - ret = -ENOMEM; + ret = usbhsh_pipe_attach(hpriv, urb); + if (ret < 0) { + dev_err(dev, "pipe attach failed\n"); goto usbhsh_urb_enqueue_error_free_endpoint; } - usbhsh_urb_to_ureq(urb) = ureq; /* * push packet */ if (usb_pipecontrol(urb->pipe)) - usbhsh_dcp_queue_push(hcd, hpriv, pipe, urb); + ret = usbhsh_dcp_queue_push(hcd, urb, mem_flags); else - usbhsh_queue_push(hcd, pipe, urb); + ret = usbhsh_queue_push(hcd, urb, mem_flags); - return 0; + return ret; usbhsh_urb_enqueue_error_free_endpoint: - usbhsh_endpoint_free(hpriv, ep); + usbhsh_endpoint_detach(hpriv, ep); usbhsh_urb_enqueue_error_free_device: if (new_udev) - usbhsh_device_free(hpriv, new_udev); + usbhsh_device_detach(hpriv, new_udev); usbhsh_urb_enqueue_error_not_linked: dev_dbg(dev, "%s error\n", __func__); @@ -807,8 +1048,11 @@ static int usbhsh_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) struct usbhsh_request *ureq = usbhsh_urb_to_ureq(urb); if (ureq) { - usbhsh_req_free(hpriv, ureq); - usbhsh_urb_to_ureq(urb) = NULL; + struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); + struct usbhs_pkt *pkt = &ureq->pkt; + + usbhs_pkt_pop(pkt->pipe, pkt); + usbhsh_queue_done(priv, pkt); } return 0; @@ -823,7 +1067,7 @@ static void usbhsh_endpoint_disable(struct usb_hcd *hcd, /* * this function might be called manytimes by same hcd/ep - * in-endpoitn == out-endpoint if ep == dcp. + * in-endpoint == out-endpoint if ep == dcp. */ if (!uep) return; @@ -831,22 +1075,19 @@ static void usbhsh_endpoint_disable(struct usb_hcd *hcd, udev = usbhsh_uep_to_udev(uep); hpriv = usbhsh_hcd_to_hpriv(hcd); - usbhsh_endpoint_free(hpriv, ep); - ep->hcpriv = NULL; + usbhsh_endpoint_detach(hpriv, ep); /* * if there is no endpoint, * free device */ if (!usbhsh_device_has_endpoint(udev)) - usbhsh_device_free(hpriv, udev); + usbhsh_device_detach(hpriv, udev); } static int usbhsh_hub_status_data(struct usb_hcd *hcd, char *buf) { struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); - struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); - struct device *dev = usbhs_priv_to_dev(priv); int roothub_id = 1; /* only 1 root hub */ /* @@ -858,8 +1099,6 @@ static int usbhsh_hub_status_data(struct usb_hcd *hcd, char *buf) else *buf = 0; - dev_dbg(dev, "%s (%02x)\n", __func__, *buf); - return !!(*buf); } @@ -919,6 +1158,8 @@ static int __usbhsh_hub_port_feature(struct usbhsh_hpriv *hpriv, USB_PORT_STAT_HIGH_SPEED | USB_PORT_STAT_LOW_SPEED); + usbhsh_queue_force_pop_all(priv); + usbhs_bus_send_reset(priv); msleep(20); usbhs_bus_send_sof_enable(priv); @@ -1042,6 +1283,12 @@ static int usbhsh_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, return ret; } +static int usbhsh_bus_nop(struct usb_hcd *hcd) +{ + /* nothing to do */ + return 0; +} + static struct hc_driver usbhsh_driver = { .description = usbhsh_hcd_name, .hcd_priv_size = sizeof(struct usbhsh_hpriv), @@ -1066,6 +1313,8 @@ static struct hc_driver usbhsh_driver = { */ .hub_status_data = usbhsh_hub_status_data, .hub_control = usbhsh_hub_control, + .bus_suspend = usbhsh_bus_nop, + .bus_resume = usbhsh_bus_nop, }; /* @@ -1082,6 +1331,20 @@ static int usbhsh_irq_attch(struct usbhs_priv *priv, usbhsh_port_stat_set(hpriv, USB_PORT_STAT_CONNECTION); usbhsh_port_stat_set(hpriv, USB_PORT_STAT_C_CONNECTION << 16); + /* + * attch interrupt might happen infinitely on some device + * (on self power USB hub ?) + * disable it here. + * + * usbhsh_is_running() becomes effective + * according to this process. + * see + * usbhsh_is_running() + * usbhsh_urb_enqueue() + */ + hpriv->mod.irq_attch = NULL; + usbhs_irq_callback_update(priv, &hpriv->mod); + return 0; } @@ -1096,6 +1359,24 @@ static int usbhsh_irq_dtch(struct usbhs_priv *priv, usbhsh_port_stat_clear(hpriv, USB_PORT_STAT_CONNECTION); usbhsh_port_stat_set(hpriv, USB_PORT_STAT_C_CONNECTION << 16); + /* + * enable attch interrupt again + * + * usbhsh_is_running() becomes invalid + * according to this process. + * see + * usbhsh_is_running() + * usbhsh_urb_enqueue() + */ + hpriv->mod.irq_attch = usbhsh_irq_attch; + usbhs_irq_callback_update(priv, &hpriv->mod); + + /* + * usbhsh_queue_force_pop_all() should be called + * after usbhsh_is_running() becomes invalid. + */ + usbhsh_queue_force_pop_all(priv); + return 0; } @@ -1131,7 +1412,6 @@ static int usbhsh_irq_setup_err(struct usbhs_priv *priv, static void usbhsh_pipe_init_for_host(struct usbhs_priv *priv) { struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); - struct usbhsh_pipe_info *pipe_info = hpriv->pipe_info; struct usbhs_pipe *pipe; u32 *pipe_type = usbhs_get_dparam(priv, pipe_type); int pipe_size = usbhs_get_dparam(priv, pipe_size); @@ -1140,7 +1420,6 @@ static void usbhsh_pipe_init_for_host(struct usbhs_priv *priv) /* init all pipe */ old_type = USB_ENDPOINT_XFER_CONTROL; for (i = 0; i < pipe_size; i++) { - pipe_info[i].usr_cnt = 0; /* * data "output" will be finished as soon as possible, @@ -1174,7 +1453,7 @@ static void usbhsh_pipe_init_for_host(struct usbhs_priv *priv) dir_in); } - pipe->mod_private = pipe_info + i; + pipe->mod_private = NULL; } } @@ -1190,6 +1469,7 @@ static int usbhsh_start(struct usbhs_priv *priv) ret = usb_add_hcd(hcd, 0, 0); if (ret < 0) return 0; + device_wakeup_enable(hcd->self.controller); /* * pipe initialize and enable DCP @@ -1205,9 +1485,7 @@ static int usbhsh_start(struct usbhs_priv *priv) * - host * - usb module */ - usbhs_sys_hispeed_ctrl(priv, 1); usbhs_sys_host_ctrl(priv, 1); - usbhs_sys_usb_ctrl(priv, 1); /* * enable irq callback @@ -1242,9 +1520,7 @@ static int usbhsh_stop(struct usbhs_priv *priv) usb_remove_hcd(hcd); /* disable sys */ - usbhs_sys_hispeed_ctrl(priv, 0); usbhs_sys_host_ctrl(priv, 0); - usbhs_sys_usb_ctrl(priv, 0); dev_dbg(dev, "quit host\n"); @@ -1255,10 +1531,8 @@ int usbhs_mod_host_probe(struct usbhs_priv *priv) { struct usbhsh_hpriv *hpriv; struct usb_hcd *hcd; - struct usbhsh_pipe_info *pipe_info; struct usbhsh_device *udev; struct device *dev = usbhs_priv_to_dev(priv); - int pipe_size = usbhs_get_dparam(priv, pipe_size); int i; /* initialize hcd */ @@ -1269,12 +1543,6 @@ int usbhs_mod_host_probe(struct usbhs_priv *priv) } hcd->has_tt = 1; /* for low/full speed */ - pipe_info = kzalloc(sizeof(*pipe_info) * pipe_size, GFP_KERNEL); - if (!pipe_info) { - dev_err(dev, "Could not allocate pipe_info\n"); - goto usbhs_mod_host_probe_err; - } - /* * CAUTION * @@ -1294,9 +1562,6 @@ int usbhs_mod_host_probe(struct usbhs_priv *priv) hpriv->mod.name = "host"; hpriv->mod.start = usbhsh_start; hpriv->mod.stop = usbhsh_stop; - hpriv->pipe_info = pipe_info; - hpriv->pipe_size = pipe_size; - usbhsh_req_list_init(hpriv); usbhsh_port_stat_init(hpriv); /* init all device */ @@ -1308,11 +1573,6 @@ int usbhs_mod_host_probe(struct usbhs_priv *priv) dev_info(dev, "host probed\n"); return 0; - -usbhs_mod_host_probe_err: - usb_put_hcd(hcd); - - return -ENOMEM; } int usbhs_mod_host_remove(struct usbhs_priv *priv) @@ -1320,8 +1580,6 @@ int usbhs_mod_host_remove(struct usbhs_priv *priv) struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); - usbhsh_req_list_quit(hpriv); - usb_put_hcd(hcd); return 0; diff --git a/drivers/usb/renesas_usbhs/pipe.c b/drivers/usb/renesas_usbhs/pipe.c index c74389ce217..7926e1c700f 100644 --- a/drivers/usb/renesas_usbhs/pipe.c +++ b/drivers/usb/renesas_usbhs/pipe.c @@ -16,8 +16,8 @@ */ #include <linux/delay.h> #include <linux/slab.h> -#include "./common.h" -#include "./pipe.h" +#include "common.h" +#include "pipe.h" /* * macros @@ -93,6 +93,82 @@ static void usbhsp_pipe_cfg_set(struct usbhs_pipe *pipe, u16 mask, u16 val) } /* + * PIPEnTRN/PIPEnTRE functions + */ +static void usbhsp_pipe_trn_set(struct usbhs_pipe *pipe, u16 mask, u16 val) +{ + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + struct device *dev = usbhs_priv_to_dev(priv); + int num = usbhs_pipe_number(pipe); + u16 reg; + + /* + * It is impossible to calculate address, + * since PIPEnTRN addresses were mapped randomly. + */ +#define CASE_PIPExTRN(a) \ + case 0x ## a: \ + reg = PIPE ## a ## TRN; \ + break; + + switch (num) { + CASE_PIPExTRN(1); + CASE_PIPExTRN(2); + CASE_PIPExTRN(3); + CASE_PIPExTRN(4); + CASE_PIPExTRN(5); + CASE_PIPExTRN(B); + CASE_PIPExTRN(C); + CASE_PIPExTRN(D); + CASE_PIPExTRN(E); + CASE_PIPExTRN(F); + CASE_PIPExTRN(9); + CASE_PIPExTRN(A); + default: + dev_err(dev, "unknown pipe (%d)\n", num); + return; + } + __usbhsp_pipe_xxx_set(pipe, 0, reg, mask, val); +} + +static void usbhsp_pipe_tre_set(struct usbhs_pipe *pipe, u16 mask, u16 val) +{ + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + struct device *dev = usbhs_priv_to_dev(priv); + int num = usbhs_pipe_number(pipe); + u16 reg; + + /* + * It is impossible to calculate address, + * since PIPEnTRE addresses were mapped randomly. + */ +#define CASE_PIPExTRE(a) \ + case 0x ## a: \ + reg = PIPE ## a ## TRE; \ + break; + + switch (num) { + CASE_PIPExTRE(1); + CASE_PIPExTRE(2); + CASE_PIPExTRE(3); + CASE_PIPExTRE(4); + CASE_PIPExTRE(5); + CASE_PIPExTRE(B); + CASE_PIPExTRE(C); + CASE_PIPExTRE(D); + CASE_PIPExTRE(E); + CASE_PIPExTRE(F); + CASE_PIPExTRE(9); + CASE_PIPExTRE(A); + default: + dev_err(dev, "unknown pipe (%d)\n", num); + return; + } + + __usbhsp_pipe_xxx_set(pipe, 0, reg, mask, val); +} + +/* * PIPEBUF */ static void usbhsp_pipe_buf_set(struct usbhs_pipe *pipe, u16 mask, u16 val) @@ -257,6 +333,38 @@ void usbhs_pipe_stall(struct usbhs_pipe *pipe) } } +int usbhs_pipe_is_stall(struct usbhs_pipe *pipe) +{ + u16 pid = usbhsp_pipectrl_get(pipe) & PID_MASK; + + return (int)(pid == PID_STALL10 || pid == PID_STALL11); +} + +void usbhs_pipe_set_trans_count_if_bulk(struct usbhs_pipe *pipe, int len) +{ + if (!usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_BULK)) + return; + + /* + * clear and disable transfer counter for IN/OUT pipe + */ + usbhsp_pipe_tre_set(pipe, TRCLR | TRENB, TRCLR); + + /* + * Only IN direction bulk pipe can use transfer count. + * Without using this function, + * received data will break if it was large data size. + * see PIPEnTRN/PIPEnTRE for detail + */ + if (usbhs_pipe_is_dir_in(pipe)) { + int maxp = usbhs_pipe_get_maxpacket(pipe); + + usbhsp_pipe_trn_set(pipe, 0xffff, DIV_ROUND_UP(len, maxp)); + usbhsp_pipe_tre_set(pipe, TRENB, TRENB); /* enable */ + } +} + + /* * pipe setup */ @@ -323,8 +431,7 @@ static u16 usbhsp_setup_pipecfg(struct usbhs_pipe *pipe, if (dir_in) usbhsp_flags_set(pipe, IS_DIR_HOST); - if ((is_host && !dir_in) || - (!is_host && dir_in)) + if (!!is_host ^ !!dir_in) dir |= DIR_OUT; if (!dir) @@ -471,10 +578,27 @@ int usbhs_pipe_is_dir_host(struct usbhs_pipe *pipe) return usbhsp_flags_has(pipe, IS_DIR_HOST); } -void usbhs_pipe_data_sequence(struct usbhs_pipe *pipe, int data) +void usbhs_pipe_data_sequence(struct usbhs_pipe *pipe, int sequence) { u16 mask = (SQCLR | SQSET); - u16 val = (data) ? SQSET : SQCLR; + u16 val; + + /* + * sequence + * 0 : data0 + * 1 : data1 + * -1 : no change + */ + switch (sequence) { + case 0: + val = SQCLR; + break; + case 1: + val = SQSET; + break; + default: + return; + } usbhsp_pipectrl_set(pipe, mask, val); } diff --git a/drivers/usb/renesas_usbhs/pipe.h b/drivers/usb/renesas_usbhs/pipe.h index 6334fc644cc..3e534987983 100644 --- a/drivers/usb/renesas_usbhs/pipe.h +++ b/drivers/usb/renesas_usbhs/pipe.h @@ -17,8 +17,8 @@ #ifndef RENESAS_USB_PIPE_H #define RENESAS_USB_PIPE_H -#include "./common.h" -#include "./fifo.h" +#include "common.h" +#include "fifo.h" /* * struct @@ -54,9 +54,9 @@ struct usbhs_pipe_info { * pipe list */ #define __usbhs_for_each_pipe(start, pos, info, i) \ - for (i = start, pos = (info)->pipe; \ - i < (info)->size; \ - i++, pos = (info)->pipe + i) + for ((i) = start; \ + ((i) < (info)->size) && ((pos) = (info)->pipe + (i)); \ + (i)++) #define usbhs_for_each_pipe(pos, priv, i) \ __usbhs_for_each_pipe(1, pos, &((priv)->pipe_info), i) @@ -87,6 +87,8 @@ int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe); void usbhs_pipe_enable(struct usbhs_pipe *pipe); void usbhs_pipe_disable(struct usbhs_pipe *pipe); void usbhs_pipe_stall(struct usbhs_pipe *pipe); +int usbhs_pipe_is_stall(struct usbhs_pipe *pipe); +void usbhs_pipe_set_trans_count_if_bulk(struct usbhs_pipe *pipe, int len); void usbhs_pipe_select_fifo(struct usbhs_pipe *pipe, struct usbhs_fifo *fifo); void usbhs_pipe_config_update(struct usbhs_pipe *pipe, u16 devsel, u16 epnum, u16 maxp); |