Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 1 | /* |
| 2 | * MUSB OTG driver defines |
| 3 | * |
| 4 | * Copyright 2005 Mentor Graphics Corporation |
| 5 | * Copyright (C) 2005-2006 by Texas Instruments |
| 6 | * Copyright (C) 2006-2007 Nokia Corporation |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License |
| 10 | * version 2 as published by the Free Software Foundation. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, but |
| 13 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
| 20 | * 02110-1301 USA |
| 21 | * |
| 22 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 23 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 24 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
| 25 | * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 26 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 27 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 28 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| 29 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 30 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 31 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 32 | * |
| 33 | */ |
| 34 | |
| 35 | #ifndef __MUSB_CORE_H__ |
| 36 | #define __MUSB_CORE_H__ |
| 37 | |
| 38 | #include <linux/slab.h> |
| 39 | #include <linux/list.h> |
| 40 | #include <linux/interrupt.h> |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 41 | #include <linux/errno.h> |
David Brownell | f7f9d63 | 2009-03-31 12:32:12 -0700 | [diff] [blame] | 42 | #include <linux/timer.h> |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 43 | #include <linux/device.h> |
| 44 | #include <linux/usb/ch9.h> |
| 45 | #include <linux/usb/gadget.h> |
| 46 | #include <linux/usb.h> |
| 47 | #include <linux/usb/otg.h> |
| 48 | #include <linux/usb/musb.h> |
| 49 | |
| 50 | struct musb; |
| 51 | struct musb_hw_ep; |
| 52 | struct musb_ep; |
| 53 | |
Cliff Cai | 0ded2f1 | 2010-01-28 20:43:44 -0500 | [diff] [blame] | 54 | /* Helper defines for struct musb->hwvers */ |
| 55 | #define MUSB_HWVERS_MAJOR(x) ((x >> 10) & 0x1f) |
| 56 | #define MUSB_HWVERS_MINOR(x) (x & 0x3ff) |
| 57 | #define MUSB_HWVERS_RC 0x8000 |
| 58 | #define MUSB_HWVERS_1300 0x52C |
| 59 | #define MUSB_HWVERS_1400 0x590 |
| 60 | #define MUSB_HWVERS_1800 0x720 |
| 61 | #define MUSB_HWVERS_1900 0x784 |
| 62 | #define MUSB_HWVERS_2000 0x800 |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 63 | |
| 64 | #include "musb_debug.h" |
| 65 | #include "musb_dma.h" |
| 66 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 67 | #include "musb_io.h" |
| 68 | #include "musb_regs.h" |
| 69 | |
| 70 | #include "musb_gadget.h" |
Eric Lescouet | 27729aa | 2010-04-24 23:21:52 +0200 | [diff] [blame] | 71 | #include <linux/usb/hcd.h> |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 72 | #include "musb_host.h" |
| 73 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 74 | #define is_peripheral_enabled(musb) ((musb)->board_mode != MUSB_HOST) |
| 75 | #define is_host_enabled(musb) ((musb)->board_mode != MUSB_PERIPHERAL) |
| 76 | #define is_otg_enabled(musb) ((musb)->board_mode == MUSB_OTG) |
| 77 | |
| 78 | /* NOTE: otg and peripheral-only state machines start at B_IDLE. |
| 79 | * OTG or host-only go to A_IDLE when ID is sensed. |
| 80 | */ |
| 81 | #define is_peripheral_active(m) (!(m)->is_host) |
| 82 | #define is_host_active(m) ((m)->is_host) |
| 83 | |
Mike Frysinger | b20cf90 | 2009-09-16 21:10:53 -0400 | [diff] [blame] | 84 | #ifndef CONFIG_HAVE_CLK |
| 85 | /* Dummy stub for clk framework */ |
| 86 | #define clk_get(dev, id) NULL |
| 87 | #define clk_put(clock) do {} while (0) |
| 88 | #define clk_enable(clock) do {} while (0) |
| 89 | #define clk_disable(clock) do {} while (0) |
| 90 | #endif |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 91 | |
| 92 | #ifdef CONFIG_PROC_FS |
| 93 | #include <linux/fs.h> |
| 94 | #define MUSB_CONFIG_PROC_FS |
| 95 | #endif |
| 96 | |
| 97 | /****************************** PERIPHERAL ROLE *****************************/ |
| 98 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 99 | #define is_peripheral_capable() (1) |
| 100 | |
| 101 | extern irqreturn_t musb_g_ep0_irq(struct musb *); |
| 102 | extern void musb_g_tx(struct musb *, u8); |
| 103 | extern void musb_g_rx(struct musb *, u8); |
| 104 | extern void musb_g_reset(struct musb *); |
| 105 | extern void musb_g_suspend(struct musb *); |
| 106 | extern void musb_g_resume(struct musb *); |
| 107 | extern void musb_g_wakeup(struct musb *); |
| 108 | extern void musb_g_disconnect(struct musb *); |
| 109 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 110 | /****************************** HOST ROLE ***********************************/ |
| 111 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 112 | #define is_host_capable() (1) |
| 113 | |
| 114 | extern irqreturn_t musb_h_ep0_irq(struct musb *); |
| 115 | extern void musb_host_tx(struct musb *, u8); |
| 116 | extern void musb_host_rx(struct musb *, u8); |
| 117 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 118 | /****************************** CONSTANTS ********************************/ |
| 119 | |
| 120 | #ifndef MUSB_C_NUM_EPS |
| 121 | #define MUSB_C_NUM_EPS ((u8)16) |
| 122 | #endif |
| 123 | |
| 124 | #ifndef MUSB_MAX_END0_PACKET |
| 125 | #define MUSB_MAX_END0_PACKET ((u16)MUSB_EP0_FIFOSIZE) |
| 126 | #endif |
| 127 | |
| 128 | /* host side ep0 states */ |
| 129 | enum musb_h_ep0_state { |
| 130 | MUSB_EP0_IDLE, |
| 131 | MUSB_EP0_START, /* expect ack of setup */ |
| 132 | MUSB_EP0_IN, /* expect IN DATA */ |
| 133 | MUSB_EP0_OUT, /* expect ack of OUT DATA */ |
| 134 | MUSB_EP0_STATUS, /* expect ack of STATUS */ |
| 135 | } __attribute__ ((packed)); |
| 136 | |
| 137 | /* peripheral side ep0 states */ |
| 138 | enum musb_g_ep0_state { |
Sergei Shtylyov | a5073b5 | 2009-03-27 12:52:43 -0700 | [diff] [blame] | 139 | MUSB_EP0_STAGE_IDLE, /* idle, waiting for SETUP */ |
| 140 | MUSB_EP0_STAGE_SETUP, /* received SETUP */ |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 141 | MUSB_EP0_STAGE_TX, /* IN data */ |
| 142 | MUSB_EP0_STAGE_RX, /* OUT data */ |
| 143 | MUSB_EP0_STAGE_STATUSIN, /* (after OUT data) */ |
| 144 | MUSB_EP0_STAGE_STATUSOUT, /* (after IN data) */ |
| 145 | MUSB_EP0_STAGE_ACKWAIT, /* after zlp, before statusin */ |
| 146 | } __attribute__ ((packed)); |
| 147 | |
David Brownell | f7f9d63 | 2009-03-31 12:32:12 -0700 | [diff] [blame] | 148 | /* |
| 149 | * OTG protocol constants. See USB OTG 1.3 spec, |
| 150 | * sections 5.5 "Device Timings" and 6.6.5 "Timers". |
| 151 | */ |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 152 | #define OTG_TIME_A_WAIT_VRISE 100 /* msec (max) */ |
David Brownell | f7f9d63 | 2009-03-31 12:32:12 -0700 | [diff] [blame] | 153 | #define OTG_TIME_A_WAIT_BCON 1100 /* min 1 second */ |
| 154 | #define OTG_TIME_A_AIDL_BDIS 200 /* min 200 msec */ |
| 155 | #define OTG_TIME_B_ASE0_BRST 100 /* min 3.125 ms */ |
| 156 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 157 | |
| 158 | /*************************** REGISTER ACCESS ********************************/ |
| 159 | |
| 160 | /* Endpoint registers (other than dynfifo setup) can be accessed either |
| 161 | * directly with the "flat" model, or after setting up an index register. |
| 162 | */ |
| 163 | |
Tony Lindgren | 59b479e | 2011-01-27 16:39:40 -0800 | [diff] [blame] | 164 | #if defined(CONFIG_ARCH_DAVINCI) || defined(CONFIG_SOC_OMAP2430) \ |
| 165 | || defined(CONFIG_SOC_OMAP3430) || defined(CONFIG_BLACKFIN) \ |
Maulik Mankad | fb9c58e | 2010-03-12 10:29:09 +0200 | [diff] [blame] | 166 | || defined(CONFIG_ARCH_OMAP4) |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 167 | /* REVISIT indexed access seemed to |
| 168 | * misbehave (on DaVinci) for at least peripheral IN ... |
| 169 | */ |
| 170 | #define MUSB_FLAT_REG |
| 171 | #endif |
| 172 | |
| 173 | /* TUSB mapping: "flat" plus ep0 special cases */ |
Felipe Balbi | 240a16e | 2011-08-05 13:29:49 +0300 | [diff] [blame] | 174 | #if defined(CONFIG_USB_MUSB_TUSB6010) || \ |
| 175 | defined(CONFIG_USB_MUSB_TUSB6010_MODULE) |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 176 | #define musb_ep_select(_mbase, _epnum) \ |
| 177 | musb_writeb((_mbase), MUSB_INDEX, (_epnum)) |
| 178 | #define MUSB_EP_OFFSET MUSB_TUSB_OFFSET |
| 179 | |
| 180 | /* "flat" mapping: each endpoint has its own i/o address */ |
| 181 | #elif defined(MUSB_FLAT_REG) |
| 182 | #define musb_ep_select(_mbase, _epnum) (((void)(_mbase)), ((void)(_epnum))) |
| 183 | #define MUSB_EP_OFFSET MUSB_FLAT_OFFSET |
| 184 | |
| 185 | /* "indexed" mapping: INDEX register controls register bank select */ |
| 186 | #else |
| 187 | #define musb_ep_select(_mbase, _epnum) \ |
| 188 | musb_writeb((_mbase), MUSB_INDEX, (_epnum)) |
| 189 | #define MUSB_EP_OFFSET MUSB_INDEXED_OFFSET |
| 190 | #endif |
| 191 | |
| 192 | /****************************** FUNCTIONS ********************************/ |
| 193 | |
| 194 | #define MUSB_HST_MODE(_musb)\ |
| 195 | { (_musb)->is_host = true; } |
| 196 | #define MUSB_DEV_MODE(_musb) \ |
| 197 | { (_musb)->is_host = false; } |
| 198 | |
| 199 | #define test_devctl_hst_mode(_x) \ |
| 200 | (musb_readb((_x)->mregs, MUSB_DEVCTL)&MUSB_DEVCTL_HM) |
| 201 | |
| 202 | #define MUSB_MODE(musb) ((musb)->is_host ? "Host" : "Peripheral") |
| 203 | |
| 204 | /******************************** TYPES *************************************/ |
| 205 | |
Felipe Balbi | 3ca8abb | 2010-10-21 13:56:40 +0300 | [diff] [blame] | 206 | /** |
| 207 | * struct musb_platform_ops - Operations passed to musb_core by HW glue layer |
| 208 | * @init: turns on clocks, sets up platform-specific registers, etc |
| 209 | * @exit: undoes @init |
Felipe Balbi | 3ca8abb | 2010-10-21 13:56:40 +0300 | [diff] [blame] | 210 | * @set_mode: forcefully changes operating mode |
| 211 | * @try_ilde: tries to idle the IP |
| 212 | * @vbus_status: returns vbus status if possible |
| 213 | * @set_vbus: forces vbus status |
Mike Frysinger | 9ea3533 | 2011-06-29 16:41:48 +0300 | [diff] [blame] | 214 | * @adjust_channel_params: pre check for standard dma channel_program func |
Felipe Balbi | 3ca8abb | 2010-10-21 13:56:40 +0300 | [diff] [blame] | 215 | */ |
| 216 | struct musb_platform_ops { |
| 217 | int (*init)(struct musb *musb); |
| 218 | int (*exit)(struct musb *musb); |
| 219 | |
Felipe Balbi | 3ca8abb | 2010-10-21 13:56:40 +0300 | [diff] [blame] | 220 | void (*enable)(struct musb *musb); |
| 221 | void (*disable)(struct musb *musb); |
| 222 | |
| 223 | int (*set_mode)(struct musb *musb, u8 mode); |
| 224 | void (*try_idle)(struct musb *musb, unsigned long timeout); |
| 225 | |
| 226 | int (*vbus_status)(struct musb *musb); |
| 227 | void (*set_vbus)(struct musb *musb, int on); |
Mike Frysinger | 1325430 | 2011-03-30 22:48:54 -0400 | [diff] [blame] | 228 | |
| 229 | int (*adjust_channel_params)(struct dma_channel *channel, |
| 230 | u16 packet_sz, u8 *mode, |
| 231 | dma_addr_t *dma_addr, u32 *len); |
Felipe Balbi | 3ca8abb | 2010-10-21 13:56:40 +0300 | [diff] [blame] | 232 | }; |
| 233 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 234 | /* |
| 235 | * struct musb_hw_ep - endpoint hardware (bidirectional) |
| 236 | * |
| 237 | * Ordered slightly for better cacheline locality. |
| 238 | */ |
| 239 | struct musb_hw_ep { |
| 240 | struct musb *musb; |
| 241 | void __iomem *fifo; |
| 242 | void __iomem *regs; |
| 243 | |
Felipe Balbi | 240a16e | 2011-08-05 13:29:49 +0300 | [diff] [blame] | 244 | #if defined(CONFIG_USB_MUSB_TUSB6010) || \ |
| 245 | defined(CONFIG_USB_MUSB_TUSB6010_MODULE) |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 246 | void __iomem *conf; |
| 247 | #endif |
| 248 | |
| 249 | /* index in musb->endpoints[] */ |
| 250 | u8 epnum; |
| 251 | |
| 252 | /* hardware configuration, possibly dynamic */ |
| 253 | bool is_shared_fifo; |
| 254 | bool tx_double_buffered; |
| 255 | bool rx_double_buffered; |
| 256 | u16 max_packet_sz_tx; |
| 257 | u16 max_packet_sz_rx; |
| 258 | |
| 259 | struct dma_channel *tx_channel; |
| 260 | struct dma_channel *rx_channel; |
| 261 | |
Felipe Balbi | 240a16e | 2011-08-05 13:29:49 +0300 | [diff] [blame] | 262 | #if defined(CONFIG_USB_MUSB_TUSB6010) || \ |
| 263 | defined(CONFIG_USB_MUSB_TUSB6010_MODULE) |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 264 | /* TUSB has "asynchronous" and "synchronous" dma modes */ |
| 265 | dma_addr_t fifo_async; |
| 266 | dma_addr_t fifo_sync; |
| 267 | void __iomem *fifo_sync_va; |
| 268 | #endif |
| 269 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 270 | void __iomem *target_regs; |
| 271 | |
| 272 | /* currently scheduled peripheral endpoint */ |
| 273 | struct musb_qh *in_qh; |
| 274 | struct musb_qh *out_qh; |
| 275 | |
| 276 | u8 rx_reinit; |
| 277 | u8 tx_reinit; |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 278 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 279 | /* peripheral side */ |
| 280 | struct musb_ep ep_in; /* TX */ |
| 281 | struct musb_ep ep_out; /* RX */ |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 282 | }; |
| 283 | |
Felipe Balbi | ad1adb8 | 2011-02-16 12:40:05 +0200 | [diff] [blame] | 284 | static inline struct musb_request *next_in_request(struct musb_hw_ep *hw_ep) |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 285 | { |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 286 | return next_request(&hw_ep->ep_in); |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 287 | } |
| 288 | |
Felipe Balbi | ad1adb8 | 2011-02-16 12:40:05 +0200 | [diff] [blame] | 289 | static inline struct musb_request *next_out_request(struct musb_hw_ep *hw_ep) |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 290 | { |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 291 | return next_request(&hw_ep->ep_out); |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 292 | } |
| 293 | |
Felipe Balbi | 7421107 | 2010-12-01 13:53:27 +0200 | [diff] [blame] | 294 | struct musb_csr_regs { |
| 295 | /* FIFO registers */ |
| 296 | u16 txmaxp, txcsr, rxmaxp, rxcsr; |
| 297 | u16 rxfifoadd, txfifoadd; |
| 298 | u8 txtype, txinterval, rxtype, rxinterval; |
| 299 | u8 rxfifosz, txfifosz; |
| 300 | u8 txfunaddr, txhubaddr, txhubport; |
| 301 | u8 rxfunaddr, rxhubaddr, rxhubport; |
| 302 | }; |
| 303 | |
| 304 | struct musb_context_registers { |
| 305 | |
Felipe Balbi | 7421107 | 2010-12-01 13:53:27 +0200 | [diff] [blame] | 306 | u8 power; |
| 307 | u16 intrtxe, intrrxe; |
| 308 | u8 intrusbe; |
| 309 | u16 frame; |
| 310 | u8 index, testmode; |
| 311 | |
| 312 | u8 devctl, busctl, misc; |
Hema HK | e25bec1 | 2011-09-07 09:19:24 -0700 | [diff] [blame] | 313 | u32 otg_interfsel; |
Felipe Balbi | 7421107 | 2010-12-01 13:53:27 +0200 | [diff] [blame] | 314 | |
| 315 | struct musb_csr_regs index_regs[MUSB_C_NUM_EPS]; |
| 316 | }; |
| 317 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 318 | /* |
| 319 | * struct musb - Driver instance data. |
| 320 | */ |
| 321 | struct musb { |
| 322 | /* device lock */ |
| 323 | spinlock_t lock; |
Felipe Balbi | 743411b | 2010-12-01 13:22:05 +0200 | [diff] [blame] | 324 | |
| 325 | const struct musb_platform_ops *ops; |
Felipe Balbi | 7421107 | 2010-12-01 13:53:27 +0200 | [diff] [blame] | 326 | struct musb_context_registers context; |
Felipe Balbi | 743411b | 2010-12-01 13:22:05 +0200 | [diff] [blame] | 327 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 328 | irqreturn_t (*isr)(int, void *); |
| 329 | struct work_struct irq_work; |
Vikram Pandita | 712d8ef | 2011-08-12 07:38:51 -0700 | [diff] [blame] | 330 | struct work_struct otg_notifier_work; |
Anand Gadiyar | 32c3b94 | 2009-11-16 21:09:21 +0530 | [diff] [blame] | 331 | u16 hwvers; |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 332 | |
| 333 | /* this hub status bit is reserved by USB 2.0 and not seen by usbcore */ |
| 334 | #define MUSB_PORT_STAT_RESUME (1 << 31) |
| 335 | |
| 336 | u32 port1_status; |
| 337 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 338 | unsigned long rh_timer; |
| 339 | |
| 340 | enum musb_h_ep0_state ep0_stage; |
| 341 | |
| 342 | /* bulk traffic normally dedicates endpoint hardware, and each |
| 343 | * direction has its own ring of host side endpoints. |
| 344 | * we try to progress the transfer at the head of each endpoint's |
| 345 | * queue until it completes or NAKs too much; then we try the next |
| 346 | * endpoint. |
| 347 | */ |
| 348 | struct musb_hw_ep *bulk_ep; |
| 349 | |
| 350 | struct list_head control; /* of musb_qh */ |
| 351 | struct list_head in_bulk; /* of musb_qh */ |
| 352 | struct list_head out_bulk; /* of musb_qh */ |
David Brownell | f7f9d63 | 2009-03-31 12:32:12 -0700 | [diff] [blame] | 353 | |
| 354 | struct timer_list otg_timer; |
Hema HK | 594632e | 2010-12-10 18:10:51 +0530 | [diff] [blame] | 355 | struct notifier_block nb; |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 356 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 357 | struct dma_controller *dma_controller; |
| 358 | |
| 359 | struct device *controller; |
| 360 | void __iomem *ctrl_base; |
| 361 | void __iomem *mregs; |
| 362 | |
Felipe Balbi | 240a16e | 2011-08-05 13:29:49 +0300 | [diff] [blame] | 363 | #if defined(CONFIG_USB_MUSB_TUSB6010) || \ |
| 364 | defined(CONFIG_USB_MUSB_TUSB6010_MODULE) |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 365 | dma_addr_t async; |
| 366 | dma_addr_t sync; |
| 367 | void __iomem *sync_va; |
| 368 | #endif |
| 369 | |
| 370 | /* passed down from chip/board specific irq handlers */ |
| 371 | u8 int_usb; |
| 372 | u16 int_rx; |
| 373 | u16 int_tx; |
| 374 | |
Heikki Krogerus | 8675381 | 2012-02-13 13:24:02 +0200 | [diff] [blame] | 375 | struct usb_phy *xceiv; |
Vikram Pandita | 712d8ef | 2011-08-12 07:38:51 -0700 | [diff] [blame] | 376 | u8 xceiv_event; |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 377 | |
| 378 | int nIrq; |
Felipe Balbi | c48a515 | 2008-11-24 13:06:53 +0200 | [diff] [blame] | 379 | unsigned irq_wake:1; |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 380 | |
| 381 | struct musb_hw_ep endpoints[MUSB_C_NUM_EPS]; |
| 382 | #define control_ep endpoints |
| 383 | |
| 384 | #define VBUSERR_RETRY_COUNT 3 |
| 385 | u16 vbuserr_retry; |
| 386 | u16 epmask; |
| 387 | u8 nr_endpoints; |
| 388 | |
| 389 | u8 board_mode; /* enum musb_mode */ |
| 390 | int (*board_set_power)(int state); |
| 391 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 392 | u8 min_power; /* vbus for periph, in mA/2 */ |
| 393 | |
| 394 | bool is_host; |
| 395 | |
| 396 | int a_wait_bcon; /* VBUS timeout in msecs */ |
| 397 | unsigned long idle_timeout; /* Next timeout in jiffies */ |
| 398 | |
| 399 | /* active means connected and not suspended */ |
| 400 | unsigned is_active:1; |
| 401 | |
| 402 | unsigned is_multipoint:1; |
| 403 | unsigned ignore_disconnect:1; /* during bus resets */ |
| 404 | |
Ajay Kumar Gupta | a483d70 | 2009-04-03 16:16:17 -0700 | [diff] [blame] | 405 | unsigned hb_iso_rx:1; /* high bandwidth iso rx? */ |
| 406 | unsigned hb_iso_tx:1; /* high bandwidth iso tx? */ |
Ajay Kumar Gupta | 51bf0d0 | 2009-12-28 13:40:41 +0200 | [diff] [blame] | 407 | unsigned dyn_fifo:1; /* dynamic FIFO supported? */ |
Ajay Kumar Gupta | a483d70 | 2009-04-03 16:16:17 -0700 | [diff] [blame] | 408 | |
Felipe Balbi | 7ed069c | 2009-12-15 11:08:39 +0200 | [diff] [blame] | 409 | unsigned bulk_split:1; |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 410 | #define can_bulk_split(musb,type) \ |
Felipe Balbi | 7ed069c | 2009-12-15 11:08:39 +0200 | [diff] [blame] | 411 | (((type) == USB_ENDPOINT_XFER_BULK) && (musb)->bulk_split) |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 412 | |
Felipe Balbi | 7ed069c | 2009-12-15 11:08:39 +0200 | [diff] [blame] | 413 | unsigned bulk_combine:1; |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 414 | #define can_bulk_combine(musb,type) \ |
Felipe Balbi | 7ed069c | 2009-12-15 11:08:39 +0200 | [diff] [blame] | 415 | (((type) == USB_ENDPOINT_XFER_BULK) && (musb)->bulk_combine) |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 416 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 417 | /* is_suspended means USB B_PERIPHERAL suspend */ |
| 418 | unsigned is_suspended:1; |
| 419 | |
| 420 | /* may_wakeup means remote wakeup is enabled */ |
| 421 | unsigned may_wakeup:1; |
| 422 | |
| 423 | /* is_self_powered is reported in device status and the |
| 424 | * config descriptor. is_bus_powered means B_PERIPHERAL |
| 425 | * draws some VBUS current; both can be true. |
| 426 | */ |
| 427 | unsigned is_self_powered:1; |
| 428 | unsigned is_bus_powered:1; |
| 429 | |
| 430 | unsigned set_address:1; |
| 431 | unsigned test_mode:1; |
| 432 | unsigned softconnect:1; |
Felipe Balbi | 5990378 | 2011-02-11 10:00:02 +0200 | [diff] [blame] | 433 | |
| 434 | u8 address; |
| 435 | u8 test_mode_nr; |
| 436 | u16 ackpend; /* ep0 */ |
| 437 | enum musb_g_ep0_state ep0_state; |
| 438 | struct usb_gadget g; /* the gadget */ |
| 439 | struct usb_gadget_driver *gadget_driver; /* its driver */ |
Felipe Balbi | 5990378 | 2011-02-11 10:00:02 +0200 | [diff] [blame] | 440 | |
Felipe Balbi | 0662481 | 2011-01-21 13:39:20 +0800 | [diff] [blame] | 441 | /* |
| 442 | * FIXME: Remove this flag. |
| 443 | * |
| 444 | * This is only added to allow Blackfin to work |
| 445 | * with current driver. For some unknown reason |
| 446 | * Blackfin doesn't work with double buffering |
| 447 | * and that's enabled by default. |
| 448 | * |
| 449 | * We added this flag to forcefully disable double |
| 450 | * buffering until we get it working. |
| 451 | */ |
| 452 | unsigned double_buffer_not_ok:1 __deprecated; |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 453 | |
Felipe Balbi | ca6d1b1 | 2008-08-08 12:40:54 +0300 | [diff] [blame] | 454 | struct musb_hdrc_config *config; |
| 455 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 456 | #ifdef MUSB_CONFIG_PROC_FS |
| 457 | struct proc_dir_entry *proc_entry; |
| 458 | #endif |
| 459 | }; |
| 460 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 461 | static inline struct musb *gadget_to_musb(struct usb_gadget *g) |
| 462 | { |
| 463 | return container_of(g, struct musb, g); |
| 464 | } |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 465 | |
Bryan Wu | c6cf8b0 | 2008-12-02 21:33:48 +0200 | [diff] [blame] | 466 | #ifdef CONFIG_BLACKFIN |
| 467 | static inline int musb_read_fifosize(struct musb *musb, |
| 468 | struct musb_hw_ep *hw_ep, u8 epnum) |
| 469 | { |
| 470 | musb->nr_endpoints++; |
| 471 | musb->epmask |= (1 << epnum); |
| 472 | |
| 473 | if (epnum < 5) { |
| 474 | hw_ep->max_packet_sz_tx = 128; |
| 475 | hw_ep->max_packet_sz_rx = 128; |
| 476 | } else { |
| 477 | hw_ep->max_packet_sz_tx = 1024; |
| 478 | hw_ep->max_packet_sz_rx = 1024; |
| 479 | } |
| 480 | hw_ep->is_shared_fifo = false; |
| 481 | |
| 482 | return 0; |
| 483 | } |
| 484 | |
| 485 | static inline void musb_configure_ep0(struct musb *musb) |
| 486 | { |
| 487 | musb->endpoints[0].max_packet_sz_tx = MUSB_EP0_FIFOSIZE; |
| 488 | musb->endpoints[0].max_packet_sz_rx = MUSB_EP0_FIFOSIZE; |
| 489 | musb->endpoints[0].is_shared_fifo = true; |
| 490 | } |
| 491 | |
| 492 | #else |
| 493 | |
| 494 | static inline int musb_read_fifosize(struct musb *musb, |
| 495 | struct musb_hw_ep *hw_ep, u8 epnum) |
| 496 | { |
Giuseppe GORGOGLIONE | 3223371 | 2009-02-24 15:27:34 -0800 | [diff] [blame] | 497 | void *mbase = musb->mregs; |
Bryan Wu | c6cf8b0 | 2008-12-02 21:33:48 +0200 | [diff] [blame] | 498 | u8 reg = 0; |
| 499 | |
| 500 | /* read from core using indexed model */ |
Giuseppe GORGOGLIONE | 3223371 | 2009-02-24 15:27:34 -0800 | [diff] [blame] | 501 | reg = musb_readb(mbase, MUSB_EP_OFFSET(epnum, MUSB_FIFOSIZE)); |
Bryan Wu | c6cf8b0 | 2008-12-02 21:33:48 +0200 | [diff] [blame] | 502 | /* 0's returned when no more endpoints */ |
| 503 | if (!reg) |
| 504 | return -ENODEV; |
| 505 | |
| 506 | musb->nr_endpoints++; |
| 507 | musb->epmask |= (1 << epnum); |
| 508 | |
| 509 | hw_ep->max_packet_sz_tx = 1 << (reg & 0x0f); |
| 510 | |
| 511 | /* shared TX/RX FIFO? */ |
| 512 | if ((reg & 0xf0) == 0xf0) { |
| 513 | hw_ep->max_packet_sz_rx = hw_ep->max_packet_sz_tx; |
| 514 | hw_ep->is_shared_fifo = true; |
| 515 | return 0; |
| 516 | } else { |
| 517 | hw_ep->max_packet_sz_rx = 1 << ((reg & 0xf0) >> 4); |
| 518 | hw_ep->is_shared_fifo = false; |
| 519 | } |
| 520 | |
| 521 | return 0; |
| 522 | } |
| 523 | |
| 524 | static inline void musb_configure_ep0(struct musb *musb) |
| 525 | { |
| 526 | musb->endpoints[0].max_packet_sz_tx = MUSB_EP0_FIFOSIZE; |
| 527 | musb->endpoints[0].max_packet_sz_rx = MUSB_EP0_FIFOSIZE; |
Giuseppe GORGOGLIONE | 3223371 | 2009-02-24 15:27:34 -0800 | [diff] [blame] | 528 | musb->endpoints[0].is_shared_fifo = true; |
Bryan Wu | c6cf8b0 | 2008-12-02 21:33:48 +0200 | [diff] [blame] | 529 | } |
| 530 | #endif /* CONFIG_BLACKFIN */ |
| 531 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 532 | |
| 533 | /***************************** Glue it together *****************************/ |
| 534 | |
| 535 | extern const char musb_driver_name[]; |
| 536 | |
| 537 | extern void musb_start(struct musb *musb); |
| 538 | extern void musb_stop(struct musb *musb); |
| 539 | |
| 540 | extern void musb_write_fifo(struct musb_hw_ep *ep, u16 len, const u8 *src); |
| 541 | extern void musb_read_fifo(struct musb_hw_ep *ep, u16 len, u8 *dst); |
| 542 | |
| 543 | extern void musb_load_testpacket(struct musb *); |
| 544 | |
| 545 | extern irqreturn_t musb_interrupt(struct musb *); |
| 546 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 547 | extern void musb_hnp_stop(struct musb *musb); |
| 548 | |
Felipe Balbi | 743411b | 2010-12-01 13:22:05 +0200 | [diff] [blame] | 549 | static inline void musb_platform_set_vbus(struct musb *musb, int is_on) |
| 550 | { |
| 551 | if (musb->ops->set_vbus) |
| 552 | musb->ops->set_vbus(musb, is_on); |
| 553 | } |
| 554 | |
| 555 | static inline void musb_platform_enable(struct musb *musb) |
| 556 | { |
| 557 | if (musb->ops->enable) |
| 558 | musb->ops->enable(musb); |
| 559 | } |
| 560 | |
| 561 | static inline void musb_platform_disable(struct musb *musb) |
| 562 | { |
| 563 | if (musb->ops->disable) |
| 564 | musb->ops->disable(musb); |
| 565 | } |
| 566 | |
| 567 | static inline int musb_platform_set_mode(struct musb *musb, u8 mode) |
| 568 | { |
| 569 | if (!musb->ops->set_mode) |
| 570 | return 0; |
| 571 | |
| 572 | return musb->ops->set_mode(musb, mode); |
| 573 | } |
| 574 | |
| 575 | static inline void musb_platform_try_idle(struct musb *musb, |
| 576 | unsigned long timeout) |
| 577 | { |
| 578 | if (musb->ops->try_idle) |
| 579 | musb->ops->try_idle(musb, timeout); |
| 580 | } |
| 581 | |
| 582 | static inline int musb_platform_get_vbus_status(struct musb *musb) |
| 583 | { |
| 584 | if (!musb->ops->vbus_status) |
| 585 | return 0; |
| 586 | |
| 587 | return musb->ops->vbus_status(musb); |
| 588 | } |
| 589 | |
| 590 | static inline int musb_platform_init(struct musb *musb) |
| 591 | { |
| 592 | if (!musb->ops->init) |
| 593 | return -EINVAL; |
| 594 | |
| 595 | return musb->ops->init(musb); |
| 596 | } |
| 597 | |
| 598 | static inline int musb_platform_exit(struct musb *musb) |
| 599 | { |
| 600 | if (!musb->ops->exit) |
| 601 | return -EINVAL; |
| 602 | |
| 603 | return musb->ops->exit(musb); |
| 604 | } |
| 605 | |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 606 | #endif /* __MUSB_CORE_H__ */ |