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   1 /* Cypress Antioch HAL for OMAP KERNEL header file (cyashalomapkernel.h)
   2 ## ===========================
   3 ## Copyright (C) 2010  Cypress Semiconductor
   4 ##
   5 ## This program is free software; you can redistribute it and/or
   6 ## modify it under the terms of the GNU General Public License
   7 ## as published by the Free Software Foundation; either version 2
   8 ## of the License, or (at your option) any later version.
   9 ##
  10 ## This program is distributed in the hope that it will be useful,
  11 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 ## GNU General Public License for more details.
  14 ##
  15 ## You should have received a copy of the GNU General Public License
  16 ## along with this program; if not, write to the Free Software
  17 ## Foundation, Inc., 51 Franklin Street, Fifth Floor
  18 ## Boston, MA  02110-1301, USA.
  19 ## ===========================
  20 */
  21
  22 /*
  23  * This file contains the defintion of the hardware abstraction
  24  * layer on OMAP3430 talking to the West Bridge Astoria device
  25  */
  26
  27
  28 #ifndef _INCLUDED_CYASHALOMAP_KERNEL_H_
  29 #define _INCLUDED_CYASHALOMAP_KERNEL_H_
  30
  31 #include <linux/kernel.h>
  32 #include <linux/module.h>
  33 #include <linux/wait.h>
  34 #include <linux/string.h>
  35 /* include does not seem to work
  36  * moving for patch submission
  37 #include <mach/gpmc.h>
  38 */
  39 #include <linux/../../arch/arm/plat-omap/include/plat/gpmc.h>
  40 typedef struct cy_as_hal_sleep_channel_t {
  41         wait_queue_head_t wq ;
  42 } cy_as_hal_sleep_channel ;
  43
  44 /* moved to staging location, eventual location
  45  * considered is here
  46 #include <mach/westbridge/cyashaldef.h>
  47 #include <linux/westbridge/cyastypes.h>
  48 #include <linux/westbridge/cyas_cplus_start.h>
  49 */
  50 #include "../cyashaldef.h"
  51 #include "../../../../../../../include/linux/westbridge/cyastypes.h"
  52 #include "../../../../../../../include/linux/westbridge/cyas_cplus_start.h"
  53 #include "cyasomapdev_kernel.h"
  54
  55 /*
  56  * Below are the data structures that must be defined by the HAL layer
  57  */
  58
  59 /*
  60  * The HAL layer must define a TAG for identifying a specific Astoria
  61  * device in the system. In this case the tag is a void * which is
  62  * really an OMAP device pointer
  63  */
  64 typedef void *cy_as_hal_device_tag ;
  65
  66
  67 /* This must be included after the CyAsHalDeviceTag type is defined */
  68
  69 /* moved to staging location, eventual location
  70  * considered is here
  71  * #include <linux/westbridge/cyashalcb.h>
  72 */
  73 #include "../../../../../../../include/linux/westbridge/cyashalcb.h"
  74 /*
  75  * Below are the functions that communicate with the West Bridge
  76  * device.  These are system dependent and must be defined by
  77  * the HAL layer for a given system.
  78  */
  79
  80 /*
  81  * This function must be defined to write a register within the Antioch
  82  * device.  The addr value is the address of the register to write with
  83  * respect to the base address of the Antioch device.
  84  */
  85 void
  86 cy_as_hal_write_register(cy_as_hal_device_tag tag,
  87         uint16_t addr, uint16_t data) ;
  88
  89 /*
  90  * This function must be defined to read a register from
  91  * the west bridge device.  The addr value is the address of
  92  * the register to read with respect to the base address
  93  * of the west bridge device.
  94  */
  95 uint16_t
  96 cy_as_hal_read_register(cy_as_hal_device_tag tag, uint16_t addr) ;
  97
  98 /*
  99  * This function must be defined to transfer a block of data
 100  * to the west bridge device.  This function can use the burst write
 101  * (DMA) capabilities of Antioch to do this, or it can just copy
 102  * the data using writes.
 103  */
 104 void
 105 cy_as_hal_dma_setup_write(cy_as_hal_device_tag tag,
 106         uint8_t ep, void *buf, uint32_t size, uint16_t maxsize) ;
 107
 108 /*
 109  * This function must be defined to transfer a block of data
 110  * from the Antioch device.  This function can use the burst
 111  * read (DMA) capabilities of Antioch to do this, or it can
 112  * just copy the data using reads.
 113  */
 114 void
 115 cy_as_hal_dma_setup_read(cy_as_hal_device_tag tag, uint8_t ep,
 116         void *buf, uint32_t size, uint16_t maxsize) ;
 117
 118 /*
 119  * This function must be defined to cancel any pending DMA request.
 120  */
 121 void
 122 cy_as_hal_dma_cancel_request(cy_as_hal_device_tag tag, uint8_t ep) ;
 123
 124 /*
 125  * This function must be defined to allow the Antioch API to
 126  * register a callback function that is called when a DMA transfer
 127  * is complete.
 128  */
 129 void
 130 cy_as_hal_dma_register_callback(cy_as_hal_device_tag tag,
 131         cy_as_hal_dma_complete_callback cb) ;
 132
 133 /*
 134  * This function must be defined to return the maximum size of DMA
 135  * request that can be handled on the given endpoint.  The return
 136  * value should be the maximum size in bytes that the DMA module can
 137  * handle.
 138  */
 139 uint32_t
 140 cy_as_hal_dma_max_request_size(cy_as_hal_device_tag tag,
 141         cy_as_end_point_number_t ep) ;
 142
 143 /*
 144  * This function must be defined to set the state of the WAKEUP pin
 145  * on the Antioch device.  Generally this is done via a GPIO of some
 146  * type.
 147  */
 148 cy_bool
 149 cy_as_hal_set_wakeup_pin(cy_as_hal_device_tag tag, cy_bool state) ;
 150
 151 /*
 152  * This function is called when the Antioch PLL loses lock, because
 153  * of a problem in the supply voltage or the input clock.
 154  */
 155 void
 156 cy_as_hal_pll_lock_loss_handler(cy_as_hal_device_tag tag) ;
 157
 158
 159 /**********************************************************************
 160  *
 161  * Below are the functions that must be defined to provide the basic
 162  * operating system services required by the API.
 163  *
 164 ***********************************************************************/
 165
 166 /*
 167  * This function is required by the API to allocate memory.  This function
 168  * is expected to work exactly like malloc().
 169  */
 170 void *
 171 cy_as_hal_alloc(uint32_t cnt) ;
 172
 173 /*
 174  * This function is required by the API to free memory allocated with
 175  * CyAsHalAlloc().  This function is expected to work exacly like free().
 176  */
 177 void
 178 cy_as_hal_free(void *mem_p) ;
 179
 180 /*
 181  * This function is required by the API to allocate memory during a
 182  * callback.  This function must be able to provide storage at inturupt
 183  * time.
 184  */
 185 void *
 186 cy_as_hal_c_b_alloc(uint32_t cnt) ;
 187
 188 /*
 189  * This function is required by the API to free memory allocated with
 190  * CyAsCBHalAlloc().
 191  */
 192 void
 193 cy_as_hal_c_b_free(void *ptr) ;
 194
 195 /*
 196  * This function is required to set a block of memory to a specific
 197  * value.  This function is expected to work exactly like memset()
 198  */
 199 void
 200 cy_as_hal_mem_set(void *ptr, uint8_t value, uint32_t cnt) ;
 201
 202 /*
 203  * This function is expected to create a sleep channel.  The data
 204  * structure that represents the sleep channel is given by the
 205  * pointer in the argument.
 206  */
 207 cy_bool
 208 cy_as_hal_create_sleep_channel(cy_as_hal_sleep_channel *channel) ;
 209
 210 /*
 211  * This function is expected to destroy a sleep channel.  The data
 212  * structure that represents the sleep channel is given by
 213  * the pointer in the argument.
 214  */
 215
 216
 217 cy_bool
 218 cy_as_hal_destroy_sleep_channel(cy_as_hal_sleep_channel *channel) ;
 219
 220 cy_bool
 221 cy_as_hal_sleep_on(cy_as_hal_sleep_channel *channel, uint32_t ms) ;
 222
 223 cy_bool
 224 cy_as_hal_wake(cy_as_hal_sleep_channel *channel) ;
 225
 226 uint32_t
 227 cy_as_hal_disable_interrupts(void) ;
 228
 229 void
 230 cy_as_hal_enable_interrupts(uint32_t);
 231
 232 void
 233 cy_as_hal_sleep150(void);
 234
 235 void
 236 cy_as_hal_sleep(uint32_t ms);
 237
 238 cy_bool
 239 cy_as_hal_is_polling(void);
 240
 241 void cy_as_hal_init_dev_registers(cy_as_hal_device_tag tag,
 242         cy_bool is_standby_wakeup);
 243
 244 /*
 245  * required only in spi mode
 246  */
 247 cy_bool cy_as_hal_sync_device_clocks(cy_as_hal_device_tag tag);
 248
 249 void cy_as_hal_read_regs_before_standby(cy_as_hal_device_tag tag);
 250
 251
 252 #ifndef NDEBUG
 253 #define cy_as_hal_assert(cond) if (!(cond))\
 254         printk(KERN_WARNING"assertion failed at %s:%d\n", __FILE__, __LINE__);
 255 #else
 256 #define cy_as_hal_assert(cond)
 257 #endif
 258
 259 #define cy_as_hal_print_message printk
 260
 261 /* removable debug printks */
 262 #ifndef WESTBRIDGE_NDEBUG
 263 #define DBG_PRINT_ENABLED
 264 #endif
 265
 266 /*#define MBOX_ACCESS_DBG_PRINT_ENABLED*/
 267
 268
 269 #ifdef DBG_PRINT_ENABLED
 270  /* Debug printing enabled */
 271
 272  #define DBGPRN(...) printk(__VA_ARGS__)
 273  #define DBGPRN_FUNC_NAME       printk("<1> %x:_func: %s\n", \
 274                 current->pid, __func__)
 275
 276 #else
 277  /** NO DEBUG PRINTING **/
 278  #define DBGPRN(...)
 279  #define DBGPRN_FUNC_NAME
 280
 281 #endif
 282
 283 /*
 284 CyAsMiscSetLogLevel(uint8_t level)
 285 {
 286         debug_level = level ;
 287 }
 288
 289 #ifdef CY_AS_LOG_SUPPORT
 290
 291 void
 292 cy_as_log_debug_message(int level, const char *str)
 293 {
 294         if (level <= debug_level)
 295                 cy_as_hal_print_message("log %d: %s\n", level, str) ;
 296 }
 297 */
 298
 299
 300 /*
 301  * print buffer helper
 302  */
 303 void cyashal_prn_buf(void  *buf, uint16_t offset, int len);
 304
 305 /*
 306  * These are the functions that are not part of the HAL layer,
 307  * but are required to be called for this HAL.
 308  */
 309 int start_o_m_a_p_kernel(const char *pgm,
 310         cy_as_hal_device_tag *tag, cy_bool debug) ;
 311 int stop_o_m_a_p_kernel(const char *pgm, cy_as_hal_device_tag tag) ;
 312 int omap_start_intr(cy_as_hal_device_tag tag) ;
 313 void cy_as_hal_set_ep_dma_mode(uint8_t ep, bool sg_xfer_enabled);
 314
 315 /* moved to staging location
 316 #include <linux/westbridge/cyas_cplus_end.h>
 317 */
 318 #include "../../../../../../../include/linux/westbridge/cyas_cplus_start.h"
 319 #endif