diff options
Diffstat (limited to 'drivers/usb/musb/musb_core.h')
| -rw-r--r-- | drivers/usb/musb/musb_core.h | 155 |
1 files changed, 67 insertions, 88 deletions
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index 9f22c5b8ce37..91b5b6b66f96 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -1,35 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * MUSB OTG driver defines * * Copyright 2005 Mentor Graphics Corporation * Copyright (C) 2005-2006 by Texas Instruments * Copyright (C) 2006-2007 Nokia Corporation - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * - * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * */ #ifndef __MUSB_CORE_H__ @@ -52,6 +27,7 @@ struct musb; struct musb_hw_ep; struct musb_ep; +struct musb_qh; /* Helper defines for struct musb->hwvers */ #define MUSB_HWVERS_MAJOR(x) ((x >> 10) & 0x1f) @@ -78,12 +54,6 @@ struct musb_ep; #define is_peripheral_active(m) (!(m)->is_host) #define is_host_active(m) ((m)->is_host) -enum { - MUSB_PORT_MODE_HOST = 1, - MUSB_PORT_MODE_GADGET, - MUSB_PORT_MODE_DUAL_ROLE, -}; - /****************************** CONSTANTS ********************************/ #ifndef MUSB_C_NUM_EPS @@ -150,12 +120,14 @@ struct musb_io; * @fifo_offset: returns the fifo offset * @readb: read 8 bits * @writeb: write 8 bits + * @clearb: could be clear-on-readb or W1C * @readw: read 16 bits * @writew: write 16 bits - * @readl: read 32 bits - * @writel: write 32 bits + * @clearw: could be clear-on-readw or W1C * @read_fifo: reads the fifo * @write_fifo: writes to fifo + * @get_toggle: platform specific get toggle function + * @set_toggle: platform specific set toggle function * @dma_init: platform specific dma init function * @dma_exit: platform specific dma exit function * @init: turns on clocks, sets up platform-specific registers, etc @@ -165,7 +137,6 @@ struct musb_io; * @recover: platform-specific babble recovery * @vbus_status: returns vbus status if possible * @set_vbus: forces vbus status - * @adjust_channel_params: pre check for standard dma channel_program func * @pre_root_reset_end: called before the root usb port reset flag gets cleared * @post_root_reset_end: called after the root usb port reset flag gets cleared * @phy_callback: optional callback function for the phy to call @@ -195,14 +166,16 @@ struct musb_platform_ops { u16 fifo_mode; u32 (*fifo_offset)(u8 epnum); u32 (*busctl_offset)(u8 epnum, u16 offset); - u8 (*readb)(const void __iomem *addr, unsigned offset); - void (*writeb)(void __iomem *addr, unsigned offset, u8 data); - u16 (*readw)(const void __iomem *addr, unsigned offset); - void (*writew)(void __iomem *addr, unsigned offset, u16 data); - u32 (*readl)(const void __iomem *addr, unsigned offset); - void (*writel)(void __iomem *addr, unsigned offset, u32 data); + u8 (*readb)(void __iomem *addr, u32 offset); + void (*writeb)(void __iomem *addr, u32 offset, u8 data); + u8 (*clearb)(void __iomem *addr, u32 offset); + u16 (*readw)(void __iomem *addr, u32 offset); + void (*writew)(void __iomem *addr, u32 offset, u16 data); + u16 (*clearw)(void __iomem *addr, u32 offset); void (*read_fifo)(struct musb_hw_ep *hw_ep, u16 len, u8 *buf); void (*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf); + u16 (*get_toggle)(struct musb_qh *qh, int is_out); + u16 (*set_toggle)(struct musb_qh *qh, int is_out, struct urb *urb); struct dma_controller * (*dma_init) (struct musb *musb, void __iomem *base); void (*dma_exit)(struct dma_controller *c); @@ -213,9 +186,6 @@ struct musb_platform_ops { int (*vbus_status)(struct musb *musb); void (*set_vbus)(struct musb *musb, int on); - int (*adjust_channel_params)(struct dma_channel *channel, - u16 packet_sz, u8 *mode, - dma_addr_t *dma_addr, u32 *len); void (*pre_root_reset_end)(struct musb *musb); void (*post_root_reset_end)(struct musb *musb); int (*phy_callback)(enum musb_vbus_id_status status); @@ -345,6 +315,7 @@ struct musb { struct list_head pending_list; /* pending work list */ struct timer_list otg_timer; + struct timer_list dev_timer; struct notifier_block nb; struct dma_controller *dma_controller; @@ -368,6 +339,8 @@ struct musb { struct usb_phy *xceiv; struct phy *phy; + enum usb_otg_state otg_state; + int nIrq; unsigned irq_wake:1; @@ -379,11 +352,9 @@ struct musb { u16 epmask; u8 nr_endpoints; - int (*board_set_power)(int state); - u8 min_power; /* vbus for periph, in mA/2 */ - int port_mode; /* MUSB_PORT_MODE_* */ + enum musb_mode port_mode; bool session; unsigned long quirk_retries; bool is_host; @@ -404,11 +375,11 @@ struct musb { unsigned dyn_fifo:1; /* dynamic FIFO supported? */ unsigned bulk_split:1; -#define can_bulk_split(musb,type) \ +#define can_bulk_split(musb, type) \ (((type) == USB_ENDPOINT_XFER_BULK) && (musb)->bulk_split) unsigned bulk_combine:1; -#define can_bulk_combine(musb,type) \ +#define can_bulk_combine(musb, type) \ (((type) == USB_ENDPOINT_XFER_BULK) && (musb)->bulk_combine) /* is_suspended means USB B_PERIPHERAL suspend */ @@ -428,6 +399,8 @@ struct musb { unsigned test_mode:1; unsigned softconnect:1; + unsigned flush_irq_work:1; + u8 address; u8 test_mode_nr; u16 ackpend; /* ep0 */ @@ -436,19 +409,6 @@ struct musb { struct usb_gadget_driver *gadget_driver; /* its driver */ struct usb_hcd *hcd; /* the usb hcd */ - /* - * FIXME: Remove this flag. - * - * This is only added to allow Blackfin to work - * with current driver. For some unknown reason - * Blackfin doesn't work with double buffering - * and that's enabled by default. - * - * We added this flag to forcefully disable double - * buffering until we get it working. - */ - unsigned double_buffer_not_ok:1; - const struct musb_hdrc_config *config; int xceiv_old_state; @@ -465,34 +425,30 @@ static inline struct musb *gadget_to_musb(struct usb_gadget *g) return container_of(g, struct musb, g); } -#ifdef CONFIG_BLACKFIN -static inline int musb_read_fifosize(struct musb *musb, - struct musb_hw_ep *hw_ep, u8 epnum) +static inline char *musb_ep_xfertype_string(u8 type) { - musb->nr_endpoints++; - musb->epmask |= (1 << epnum); - - if (epnum < 5) { - hw_ep->max_packet_sz_tx = 128; - hw_ep->max_packet_sz_rx = 128; - } else { - hw_ep->max_packet_sz_tx = 1024; - hw_ep->max_packet_sz_rx = 1024; + char *s; + + switch (type) { + case USB_ENDPOINT_XFER_CONTROL: + s = "ctrl"; + break; + case USB_ENDPOINT_XFER_ISOC: + s = "iso"; + break; + case USB_ENDPOINT_XFER_BULK: + s = "bulk"; + break; + case USB_ENDPOINT_XFER_INT: + s = "int"; + break; + default: + s = ""; + break; } - hw_ep->is_shared_fifo = false; - - return 0; + return s; } -static inline void musb_configure_ep0(struct musb *musb) -{ - musb->endpoints[0].max_packet_sz_tx = MUSB_EP0_FIFOSIZE; - musb->endpoints[0].max_packet_sz_rx = MUSB_EP0_FIFOSIZE; - musb->endpoints[0].is_shared_fifo = true; -} - -#else - static inline int musb_read_fifosize(struct musb *musb, struct musb_hw_ep *hw_ep, u8 epnum) { @@ -529,8 +485,6 @@ static inline void musb_configure_ep0(struct musb *musb) musb->endpoints[0].max_packet_sz_rx = MUSB_EP0_FIFOSIZE; musb->endpoints[0].is_shared_fifo = true; } -#endif /* CONFIG_BLACKFIN */ - /***************************** Glue it together *****************************/ @@ -542,6 +496,9 @@ extern void musb_start(struct musb *musb); extern void musb_write_fifo(struct musb_hw_ep *ep, u16 len, const u8 *src); extern void musb_read_fifo(struct musb_hw_ep *ep, u16 len, u8 *dst); +extern int musb_set_host(struct musb *musb); +extern int musb_set_peripheral(struct musb *musb); + extern void musb_load_testpacket(struct musb *); extern irqreturn_t musb_interrupt(struct musb *); @@ -635,6 +592,28 @@ static inline void musb_platform_clear_ep_rxintr(struct musb *musb, int epnum) musb->ops->clear_ep_rxintr(musb, epnum); } +static inline void musb_set_state(struct musb *musb, + enum usb_otg_state otg_state) +{ + if (musb->xceiv) + musb->xceiv->otg->state = otg_state; + else + musb->otg_state = otg_state; +} + +static inline enum usb_otg_state musb_get_state(struct musb *musb) +{ + if (musb->xceiv) + return musb->xceiv->otg->state; + + return musb->otg_state; +} + +static inline const char *musb_otg_state_string(struct musb *musb) +{ + return usb_otg_state_string(musb_get_state(musb)); +} + /* * gets the "dr_mode" property from DT and converts it into musb_mode * if the property is not found or not recognized returns MUSB_OTG |