Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 1 | #include "sb_pci_mp.h" |
| 2 | #include <linux/module.h> |
| 3 | #include <linux/parport.h> |
| 4 | |
| 5 | extern struct parport *parport_pc_probe_port(unsigned long base_lo, |
| 6 | unsigned long base_hi, |
| 7 | int irq, int dma, |
| 8 | struct device *dev, |
| 9 | int irqflags); |
| 10 | |
| 11 | static struct mp_device_t mp_devs[MAX_MP_DEV]; |
| 12 | static int mp_nrpcibrds = sizeof(mp_pciboards)/sizeof(mppcibrd_t); |
| 13 | static int NR_BOARD=0; |
| 14 | static int NR_PORTS=0; |
| 15 | static struct mp_port multi_ports[MAX_MP_PORT]; |
| 16 | static struct irq_info irq_lists[NR_IRQS]; |
| 17 | |
| 18 | static _INLINE_ unsigned int serial_in(struct mp_port *mtpt, int offset); |
| 19 | static _INLINE_ void serial_out(struct mp_port *mtpt, int offset, int value); |
| 20 | static _INLINE_ unsigned int read_option_register(struct mp_port *mtpt, int offset); |
Lidza Louina | 6f7f312 | 2013-05-10 11:05:37 -0400 | [diff] [blame^] | 21 | static int sb1054_get_register(struct sb_uart_port *port, int page, int reg); |
| 22 | static int sb1054_set_register(struct sb_uart_port *port, int page, int reg, int value); |
| 23 | static void SendATCommand(struct mp_port *mtpt); |
| 24 | static int set_deep_fifo(struct sb_uart_port *port, int status); |
| 25 | static int get_deep_fifo(struct sb_uart_port *port); |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 26 | static int get_device_type(int arg); |
| 27 | static int set_auto_rts(struct sb_uart_port *port, int status); |
| 28 | static void mp_stop(struct tty_struct *tty); |
| 29 | static void __mp_start(struct tty_struct *tty); |
| 30 | static void mp_start(struct tty_struct *tty); |
| 31 | static void mp_tasklet_action(unsigned long data); |
| 32 | static inline void mp_update_mctrl(struct sb_uart_port *port, unsigned int set, unsigned int clear); |
| 33 | static int mp_startup(struct sb_uart_state *state, int init_hw); |
| 34 | static void mp_shutdown(struct sb_uart_state *state); |
| 35 | static void mp_change_speed(struct sb_uart_state *state, struct MP_TERMIOS *old_termios); |
| 36 | |
| 37 | static inline int __mp_put_char(struct sb_uart_port *port, struct circ_buf *circ, unsigned char c); |
| 38 | static int mp_put_char(struct tty_struct *tty, unsigned char ch); |
| 39 | |
| 40 | static void mp_put_chars(struct tty_struct *tty); |
Lidza Louina | 6f7f312 | 2013-05-10 11:05:37 -0400 | [diff] [blame^] | 41 | static int mp_write(struct tty_struct *tty, const unsigned char *buf, int count); |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 42 | static int mp_write_room(struct tty_struct *tty); |
| 43 | static int mp_chars_in_buffer(struct tty_struct *tty); |
| 44 | static void mp_flush_buffer(struct tty_struct *tty); |
| 45 | static void mp_send_xchar(struct tty_struct *tty, char ch); |
| 46 | static void mp_throttle(struct tty_struct *tty); |
| 47 | static void mp_unthrottle(struct tty_struct *tty); |
| 48 | static int mp_get_info(struct sb_uart_state *state, struct serial_struct *retinfo); |
| 49 | static int mp_set_info(struct sb_uart_state *state, struct serial_struct *newinfo); |
| 50 | static int mp_get_lsr_info(struct sb_uart_state *state, unsigned int *value); |
| 51 | |
| 52 | static int mp_tiocmget(struct tty_struct *tty); |
| 53 | static int mp_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear); |
| 54 | static int mp_break_ctl(struct tty_struct *tty, int break_state); |
| 55 | static int mp_do_autoconfig(struct sb_uart_state *state); |
| 56 | static int mp_wait_modem_status(struct sb_uart_state *state, unsigned long arg); |
| 57 | static int mp_get_count(struct sb_uart_state *state, struct serial_icounter_struct *icnt); |
| 58 | static int mp_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg); |
| 59 | static void mp_set_termios(struct tty_struct *tty, struct MP_TERMIOS *old_termios); |
| 60 | static void mp_close(struct tty_struct *tty, struct file *filp); |
| 61 | static void mp_wait_until_sent(struct tty_struct *tty, int timeout); |
| 62 | static void mp_hangup(struct tty_struct *tty); |
| 63 | static void mp_update_termios(struct sb_uart_state *state); |
| 64 | static int mp_block_til_ready(struct file *filp, struct sb_uart_state *state); |
| 65 | static struct sb_uart_state *uart_get(struct uart_driver *drv, int line); |
| 66 | static int mp_open(struct tty_struct *tty, struct file *filp); |
| 67 | static const char *mp_type(struct sb_uart_port *port); |
| 68 | static void mp_change_pm(struct sb_uart_state *state, int pm_state); |
| 69 | static inline void mp_report_port(struct uart_driver *drv, struct sb_uart_port *port); |
| 70 | static void mp_configure_port(struct uart_driver *drv, struct sb_uart_state *state, struct sb_uart_port *port); |
| 71 | static void mp_unconfigure_port(struct uart_driver *drv, struct sb_uart_state *state); |
| 72 | static int mp_register_driver(struct uart_driver *drv); |
| 73 | static void mp_unregister_driver(struct uart_driver *drv); |
| 74 | static int mp_add_one_port(struct uart_driver *drv, struct sb_uart_port *port); |
| 75 | static int mp_remove_one_port(struct uart_driver *drv, struct sb_uart_port *port); |
| 76 | static void autoconfig(struct mp_port *mtpt, unsigned int probeflags); |
| 77 | static void autoconfig_irq(struct mp_port *mtpt); |
| 78 | static void multi_stop_tx(struct sb_uart_port *port); |
| 79 | static void multi_start_tx(struct sb_uart_port *port); |
| 80 | static void multi_stop_rx(struct sb_uart_port *port); |
| 81 | static void multi_enable_ms(struct sb_uart_port *port); |
| 82 | static _INLINE_ void receive_chars(struct mp_port *mtpt, int *status ); |
| 83 | static _INLINE_ void transmit_chars(struct mp_port *mtpt); |
| 84 | static _INLINE_ void check_modem_status(struct mp_port *mtpt); |
| 85 | static inline void multi_handle_port(struct mp_port *mtpt); |
| 86 | static irqreturn_t multi_interrupt(int irq, void *dev_id); |
| 87 | static void serial_do_unlink(struct irq_info *i, struct mp_port *mtpt); |
| 88 | static int serial_link_irq_chain(struct mp_port *mtpt); |
| 89 | static void serial_unlink_irq_chain(struct mp_port *mtpt); |
| 90 | static void multi_timeout(unsigned long data); |
| 91 | static unsigned int multi_tx_empty(struct sb_uart_port *port); |
| 92 | static unsigned int multi_get_mctrl(struct sb_uart_port *port); |
| 93 | static void multi_set_mctrl(struct sb_uart_port *port, unsigned int mctrl); |
| 94 | static void multi_break_ctl(struct sb_uart_port *port, int break_state); |
| 95 | static int multi_startup(struct sb_uart_port *port); |
| 96 | static void multi_shutdown(struct sb_uart_port *port); |
| 97 | static unsigned int multi_get_divisor(struct sb_uart_port *port, unsigned int baud); |
| 98 | static void multi_set_termios(struct sb_uart_port *port, struct MP_TERMIOS *termios, struct MP_TERMIOS *old); |
| 99 | static void multi_pm(struct sb_uart_port *port, unsigned int state, unsigned int oldstate); |
| 100 | static void multi_release_std_resource(struct mp_port *mtpt); |
| 101 | static void multi_release_port(struct sb_uart_port *port); |
| 102 | static int multi_request_port(struct sb_uart_port *port); |
| 103 | static void multi_config_port(struct sb_uart_port *port, int flags); |
| 104 | static int multi_verify_port(struct sb_uart_port *port, struct serial_struct *ser); |
Lidza Louina | 6f7f312 | 2013-05-10 11:05:37 -0400 | [diff] [blame^] | 105 | static const char *multi_type(struct sb_uart_port *port); |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 106 | static void __init multi_init_ports(void); |
| 107 | static void __init multi_register_ports(struct uart_driver *drv); |
| 108 | static int init_mp_dev(struct pci_dev *pcidev, mppcibrd_t brd); |
| 109 | |
| 110 | static int deep[256]; |
| 111 | static int deep_count; |
| 112 | static int fcr_arr[256]; |
| 113 | static int fcr_count; |
| 114 | static int ttr[256]; |
| 115 | static int ttr_count; |
| 116 | static int rtr[256]; |
| 117 | static int rtr_count; |
| 118 | |
| 119 | module_param_array(deep,int,&deep_count,0); |
| 120 | module_param_array(fcr_arr,int,&fcr_count,0); |
| 121 | module_param_array(ttr,int,&ttr_count,0); |
| 122 | module_param_array(rtr,int,&rtr_count,0); |
| 123 | |
| 124 | static _INLINE_ unsigned int serial_in(struct mp_port *mtpt, int offset) |
| 125 | { |
| 126 | return inb(mtpt->port.iobase + offset); |
| 127 | } |
| 128 | |
| 129 | static _INLINE_ void serial_out(struct mp_port *mtpt, int offset, int value) |
| 130 | { |
| 131 | outb(value, mtpt->port.iobase + offset); |
| 132 | } |
| 133 | |
| 134 | static _INLINE_ unsigned int read_option_register(struct mp_port *mtpt, int offset) |
| 135 | { |
| 136 | return inb(mtpt->option_base_addr + offset); |
| 137 | } |
| 138 | |
| 139 | static int sb1053a_get_interface(struct mp_port *mtpt, int port_num) |
| 140 | { |
| 141 | unsigned long option_base_addr = mtpt->option_base_addr; |
| 142 | unsigned int interface = 0; |
| 143 | |
| 144 | switch (port_num) |
| 145 | { |
| 146 | case 0: |
| 147 | case 1: |
| 148 | /* set GPO[1:0] = 00 */ |
| 149 | outb(0x00, option_base_addr + MP_OPTR_GPODR); |
| 150 | break; |
| 151 | case 2: |
| 152 | case 3: |
| 153 | /* set GPO[1:0] = 01 */ |
| 154 | outb(0x01, option_base_addr + MP_OPTR_GPODR); |
| 155 | break; |
| 156 | case 4: |
| 157 | case 5: |
| 158 | /* set GPO[1:0] = 10 */ |
| 159 | outb(0x02, option_base_addr + MP_OPTR_GPODR); |
| 160 | break; |
| 161 | default: |
| 162 | break; |
| 163 | } |
| 164 | |
| 165 | port_num &= 0x1; |
| 166 | |
| 167 | /* get interface */ |
| 168 | interface = inb(option_base_addr + MP_OPTR_IIR0 + port_num); |
| 169 | |
| 170 | /* set GPO[1:0] = 11 */ |
| 171 | outb(0x03, option_base_addr + MP_OPTR_GPODR); |
| 172 | |
| 173 | return (interface); |
| 174 | } |
| 175 | |
Lidza Louina | 6f7f312 | 2013-05-10 11:05:37 -0400 | [diff] [blame^] | 176 | static int sb1054_get_register(struct sb_uart_port *port, int page, int reg) |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 177 | { |
| 178 | int ret = 0; |
| 179 | unsigned int lcr = 0; |
| 180 | unsigned int mcr = 0; |
| 181 | unsigned int tmp = 0; |
| 182 | |
| 183 | if( page <= 0) |
| 184 | { |
| 185 | printk(" page 0 can not use this fuction\n"); |
| 186 | return -1; |
| 187 | } |
| 188 | |
| 189 | switch(page) |
| 190 | { |
| 191 | case 1: |
| 192 | lcr = SB105X_GET_LCR(port); |
| 193 | tmp = lcr | SB105X_LCR_DLAB; |
| 194 | SB105X_PUT_LCR(port, tmp); |
| 195 | |
| 196 | tmp = SB105X_GET_LCR(port); |
| 197 | |
| 198 | ret = SB105X_GET_REG(port,reg); |
| 199 | SB105X_PUT_LCR(port,lcr); |
| 200 | break; |
| 201 | case 2: |
| 202 | mcr = SB105X_GET_MCR(port); |
| 203 | tmp = mcr | SB105X_MCR_P2S; |
| 204 | SB105X_PUT_MCR(port,tmp); |
| 205 | |
| 206 | ret = SB105X_GET_REG(port,reg); |
| 207 | |
| 208 | SB105X_PUT_MCR(port,mcr); |
| 209 | break; |
| 210 | case 3: |
| 211 | lcr = SB105X_GET_LCR(port); |
| 212 | tmp = lcr | SB105X_LCR_BF; |
| 213 | SB105X_PUT_LCR(port,tmp); |
| 214 | SB105X_PUT_REG(port,SB105X_PSR,SB105X_PSR_P3KEY); |
| 215 | |
| 216 | ret = SB105X_GET_REG(port,reg); |
| 217 | |
| 218 | SB105X_PUT_LCR(port,lcr); |
| 219 | break; |
| 220 | case 4: |
| 221 | lcr = SB105X_GET_LCR(port); |
| 222 | tmp = lcr | SB105X_LCR_BF; |
| 223 | SB105X_PUT_LCR(port,tmp); |
| 224 | SB105X_PUT_REG(port,SB105X_PSR,SB105X_PSR_P4KEY); |
| 225 | |
| 226 | ret = SB105X_GET_REG(port,reg); |
| 227 | |
| 228 | SB105X_PUT_LCR(port,lcr); |
| 229 | break; |
| 230 | default: |
| 231 | printk(" error invalid page number \n"); |
| 232 | return -1; |
| 233 | } |
| 234 | |
| 235 | return ret; |
| 236 | } |
| 237 | |
Lidza Louina | 6f7f312 | 2013-05-10 11:05:37 -0400 | [diff] [blame^] | 238 | static int sb1054_set_register(struct sb_uart_port *port, int page, int reg, int value) |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 239 | { |
| 240 | int lcr = 0; |
| 241 | int mcr = 0; |
| 242 | int ret = 0; |
| 243 | |
| 244 | if( page <= 0) |
| 245 | { |
| 246 | printk(" page 0 can not use this fuction\n"); |
| 247 | return -1; |
| 248 | } |
| 249 | switch(page) |
| 250 | { |
| 251 | case 1: |
| 252 | lcr = SB105X_GET_LCR(port); |
| 253 | SB105X_PUT_LCR(port, lcr | SB105X_LCR_DLAB); |
| 254 | |
| 255 | SB105X_PUT_REG(port,reg,value); |
| 256 | |
| 257 | SB105X_PUT_LCR(port, lcr); |
| 258 | ret = 1; |
| 259 | break; |
| 260 | case 2: |
| 261 | mcr = SB105X_GET_MCR(port); |
| 262 | SB105X_PUT_MCR(port, mcr | SB105X_MCR_P2S); |
| 263 | |
| 264 | SB105X_PUT_REG(port,reg,value); |
| 265 | |
| 266 | SB105X_PUT_MCR(port, mcr); |
| 267 | ret = 1; |
| 268 | break; |
| 269 | case 3: |
| 270 | lcr = SB105X_GET_LCR(port); |
| 271 | SB105X_PUT_LCR(port, lcr | SB105X_LCR_BF); |
| 272 | SB105X_PUT_PSR(port, SB105X_PSR_P3KEY); |
| 273 | |
| 274 | SB105X_PUT_REG(port,reg,value); |
| 275 | |
| 276 | SB105X_PUT_LCR(port, lcr); |
| 277 | ret = 1; |
| 278 | break; |
| 279 | case 4: |
| 280 | lcr = SB105X_GET_LCR(port); |
| 281 | SB105X_PUT_LCR(port, lcr | SB105X_LCR_BF); |
| 282 | SB105X_PUT_PSR(port, SB105X_PSR_P4KEY); |
| 283 | |
| 284 | SB105X_PUT_REG(port,reg,value); |
| 285 | |
| 286 | SB105X_PUT_LCR(port, lcr); |
| 287 | ret = 1; |
| 288 | break; |
| 289 | default: |
| 290 | printk(" error invalid page number \n"); |
| 291 | return -1; |
| 292 | } |
| 293 | |
| 294 | return ret; |
| 295 | } |
| 296 | |
| 297 | static int set_multidrop_mode(struct sb_uart_port *port, unsigned int mode) |
| 298 | { |
| 299 | int mdr = SB105XA_MDR_NPS; |
| 300 | |
| 301 | if (mode & MDMODE_ENABLE) |
| 302 | { |
| 303 | mdr |= SB105XA_MDR_MDE; |
| 304 | } |
| 305 | |
| 306 | if (1) //(mode & MDMODE_AUTO) |
| 307 | { |
| 308 | int efr = 0; |
| 309 | mdr |= SB105XA_MDR_AME; |
| 310 | efr = sb1054_get_register(port, PAGE_3, SB105X_EFR); |
| 311 | efr |= SB105X_EFR_SCD; |
| 312 | sb1054_set_register(port, PAGE_3, SB105X_EFR, efr); |
| 313 | } |
| 314 | |
| 315 | sb1054_set_register(port, PAGE_1, SB105XA_MDR, mdr); |
| 316 | port->mdmode &= ~0x6; |
| 317 | port->mdmode |= mode; |
| 318 | printk("[%d] multidrop init: %x\n", port->line, port->mdmode); |
| 319 | |
| 320 | return 0; |
| 321 | } |
| 322 | |
| 323 | static int get_multidrop_addr(struct sb_uart_port *port) |
| 324 | { |
| 325 | return sb1054_get_register(port, PAGE_3, SB105X_XOFF2); |
| 326 | } |
| 327 | |
| 328 | static int set_multidrop_addr(struct sb_uart_port *port, unsigned int addr) |
| 329 | { |
| 330 | sb1054_set_register(port, PAGE_3, SB105X_XOFF2, addr); |
| 331 | |
| 332 | return 0; |
| 333 | } |
| 334 | |
Lidza Louina | 6f7f312 | 2013-05-10 11:05:37 -0400 | [diff] [blame^] | 335 | static void SendATCommand(struct mp_port *mtpt) |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 336 | { |
| 337 | // a t cr lf |
| 338 | unsigned char ch[] = {0x61,0x74,0x0d,0x0a,0x0}; |
| 339 | unsigned char lineControl; |
| 340 | unsigned char i=0; |
| 341 | unsigned char Divisor = 0xc; |
| 342 | |
| 343 | lineControl = serial_inp(mtpt,UART_LCR); |
| 344 | serial_outp(mtpt,UART_LCR,(lineControl | UART_LCR_DLAB)); |
| 345 | serial_outp(mtpt,UART_DLL,(Divisor & 0xff)); |
| 346 | serial_outp(mtpt,UART_DLM,(Divisor & 0xff00)>>8); //baudrate is 4800 |
| 347 | |
| 348 | |
| 349 | serial_outp(mtpt,UART_LCR,lineControl); |
| 350 | serial_outp(mtpt,UART_LCR,0x03); // N-8-1 |
| 351 | serial_outp(mtpt,UART_FCR,7); |
| 352 | serial_outp(mtpt,UART_MCR,0x3); |
| 353 | while(ch[i]){ |
| 354 | while((serial_inp(mtpt,UART_LSR) & 0x60) !=0x60){ |
| 355 | ; |
| 356 | } |
| 357 | serial_outp(mtpt,0,ch[i++]); |
| 358 | } |
| 359 | |
| 360 | |
| 361 | }// end of SendATCommand() |
| 362 | |
Lidza Louina | 6f7f312 | 2013-05-10 11:05:37 -0400 | [diff] [blame^] | 363 | static int set_deep_fifo(struct sb_uart_port *port, int status) |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 364 | { |
| 365 | int afr_status = 0; |
| 366 | afr_status = sb1054_get_register(port, PAGE_4, SB105X_AFR); |
| 367 | |
| 368 | if(status == ENABLE) |
| 369 | { |
| 370 | afr_status |= SB105X_AFR_AFEN; |
| 371 | } |
| 372 | else |
| 373 | { |
| 374 | afr_status &= ~SB105X_AFR_AFEN; |
| 375 | } |
| 376 | |
| 377 | sb1054_set_register(port,PAGE_4,SB105X_AFR,afr_status); |
| 378 | sb1054_set_register(port,PAGE_4,SB105X_TTR,ttr[port->line]); |
| 379 | sb1054_set_register(port,PAGE_4,SB105X_RTR,rtr[port->line]); |
| 380 | afr_status = sb1054_get_register(port, PAGE_4, SB105X_AFR); |
| 381 | |
| 382 | return afr_status; |
| 383 | } |
| 384 | |
| 385 | static int get_device_type(int arg) |
| 386 | { |
| 387 | int ret; |
| 388 | ret = inb(mp_devs[arg].option_reg_addr+MP_OPTR_DIR0); |
| 389 | ret = (ret & 0xf0) >> 4; |
| 390 | switch (ret) |
| 391 | { |
| 392 | case DIR_UART_16C550: |
| 393 | return PORT_16C55X; |
| 394 | case DIR_UART_16C1050: |
| 395 | return PORT_16C105X; |
| 396 | case DIR_UART_16C1050A: |
| 397 | /* |
| 398 | if (mtpt->port.line < 2) |
| 399 | { |
| 400 | return PORT_16C105XA; |
| 401 | } |
| 402 | else |
| 403 | { |
| 404 | if (mtpt->device->device_id & 0x50) |
| 405 | { |
| 406 | return PORT_16C55X; |
| 407 | } |
| 408 | else |
| 409 | { |
| 410 | return PORT_16C105X; |
| 411 | } |
| 412 | }*/ |
| 413 | return PORT_16C105XA; |
| 414 | default: |
| 415 | return PORT_UNKNOWN; |
| 416 | } |
| 417 | |
| 418 | } |
Lidza Louina | 6f7f312 | 2013-05-10 11:05:37 -0400 | [diff] [blame^] | 419 | static int get_deep_fifo(struct sb_uart_port *port) |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 420 | { |
| 421 | int afr_status = 0; |
| 422 | afr_status = sb1054_get_register(port, PAGE_4, SB105X_AFR); |
| 423 | return afr_status; |
| 424 | } |
| 425 | |
| 426 | static int set_auto_rts(struct sb_uart_port *port, int status) |
| 427 | { |
| 428 | int atr_status = 0; |
| 429 | |
| 430 | #if 0 |
| 431 | int efr_status = 0; |
| 432 | |
| 433 | efr_status = sb1054_get_register(port, PAGE_3, SB105X_EFR); |
| 434 | if(status == ENABLE) |
| 435 | efr_status |= SB105X_EFR_ARTS; |
| 436 | else |
| 437 | efr_status &= ~SB105X_EFR_ARTS; |
| 438 | sb1054_set_register(port,PAGE_3,SB105X_EFR,efr_status); |
| 439 | efr_status = sb1054_get_register(port, PAGE_3, SB105X_EFR); |
| 440 | #endif |
| 441 | |
| 442 | //ATR |
| 443 | atr_status = sb1054_get_register(port, PAGE_3, SB105X_ATR); |
| 444 | switch(status) |
| 445 | { |
| 446 | case RS422PTP: |
| 447 | atr_status = (SB105X_ATR_TPS) | (SB105X_ATR_A80); |
| 448 | break; |
| 449 | case RS422MD: |
| 450 | atr_status = (SB105X_ATR_TPS) | (SB105X_ATR_TCMS) | (SB105X_ATR_A80); |
| 451 | break; |
| 452 | case RS485NE: |
| 453 | atr_status = (SB105X_ATR_RCMS) | (SB105X_ATR_TPS) | (SB105X_ATR_TCMS) | (SB105X_ATR_A80); |
| 454 | break; |
| 455 | case RS485ECHO: |
| 456 | atr_status = (SB105X_ATR_TPS) | (SB105X_ATR_TCMS) | (SB105X_ATR_A80); |
| 457 | break; |
| 458 | } |
| 459 | |
| 460 | sb1054_set_register(port,PAGE_3,SB105X_ATR,atr_status); |
| 461 | atr_status = sb1054_get_register(port, PAGE_3, SB105X_ATR); |
| 462 | |
| 463 | return atr_status; |
| 464 | } |
| 465 | |
| 466 | static void mp_stop(struct tty_struct *tty) |
| 467 | { |
| 468 | struct sb_uart_state *state = tty->driver_data; |
| 469 | struct sb_uart_port *port = state->port; |
| 470 | unsigned long flags; |
| 471 | |
| 472 | spin_lock_irqsave(&port->lock, flags); |
| 473 | port->ops->stop_tx(port); |
| 474 | spin_unlock_irqrestore(&port->lock, flags); |
| 475 | } |
| 476 | |
| 477 | static void __mp_start(struct tty_struct *tty) |
| 478 | { |
| 479 | struct sb_uart_state *state = tty->driver_data; |
| 480 | struct sb_uart_port *port = state->port; |
| 481 | |
| 482 | if (!uart_circ_empty(&state->info->xmit) && state->info->xmit.buf && |
| 483 | !tty->stopped && !tty->hw_stopped) |
| 484 | port->ops->start_tx(port); |
| 485 | } |
| 486 | |
| 487 | static void mp_start(struct tty_struct *tty) |
| 488 | { |
| 489 | __mp_start(tty); |
| 490 | } |
| 491 | |
| 492 | static void mp_tasklet_action(unsigned long data) |
| 493 | { |
| 494 | struct sb_uart_state *state = (struct sb_uart_state *)data; |
| 495 | struct tty_struct *tty; |
| 496 | |
| 497 | printk("tasklet is called!\n"); |
| 498 | tty = state->info->tty; |
| 499 | tty_wakeup(tty); |
| 500 | } |
| 501 | |
| 502 | static inline void mp_update_mctrl(struct sb_uart_port *port, unsigned int set, unsigned int clear) |
| 503 | { |
| 504 | unsigned int old; |
| 505 | |
| 506 | old = port->mctrl; |
| 507 | port->mctrl = (old & ~clear) | set; |
| 508 | if (old != port->mctrl) |
| 509 | port->ops->set_mctrl(port, port->mctrl); |
| 510 | } |
| 511 | |
| 512 | #define uart_set_mctrl(port,set) mp_update_mctrl(port,set,0) |
| 513 | #define uart_clear_mctrl(port,clear) mp_update_mctrl(port,0,clear) |
| 514 | |
| 515 | static int mp_startup(struct sb_uart_state *state, int init_hw) |
| 516 | { |
| 517 | struct sb_uart_info *info = state->info; |
| 518 | struct sb_uart_port *port = state->port; |
| 519 | unsigned long page; |
| 520 | int retval = 0; |
| 521 | |
| 522 | if (info->flags & UIF_INITIALIZED) |
| 523 | return 0; |
| 524 | |
| 525 | if (info->tty) |
| 526 | set_bit(TTY_IO_ERROR, &info->tty->flags); |
| 527 | |
| 528 | if (port->type == PORT_UNKNOWN) |
| 529 | return 0; |
| 530 | |
| 531 | if (!info->xmit.buf) { |
| 532 | page = get_zeroed_page(GFP_KERNEL); |
| 533 | if (!page) |
| 534 | return -ENOMEM; |
| 535 | |
| 536 | info->xmit.buf = (unsigned char *) page; |
| 537 | |
| 538 | uart_circ_clear(&info->xmit); |
| 539 | } |
| 540 | |
| 541 | retval = port->ops->startup(port); |
| 542 | if (retval == 0) { |
| 543 | if (init_hw) { |
| 544 | mp_change_speed(state, NULL); |
| 545 | |
| 546 | if (info->tty->termios.c_cflag & CBAUD) |
| 547 | uart_set_mctrl(port, TIOCM_RTS | TIOCM_DTR); |
| 548 | } |
| 549 | |
| 550 | info->flags |= UIF_INITIALIZED; |
| 551 | |
| 552 | |
| 553 | clear_bit(TTY_IO_ERROR, &info->tty->flags); |
| 554 | } |
| 555 | |
| 556 | if (retval && capable(CAP_SYS_ADMIN)) |
| 557 | retval = 0; |
| 558 | |
| 559 | return retval; |
| 560 | } |
| 561 | |
| 562 | static void mp_shutdown(struct sb_uart_state *state) |
| 563 | { |
| 564 | struct sb_uart_info *info = state->info; |
| 565 | struct sb_uart_port *port = state->port; |
| 566 | |
| 567 | if (info->tty) |
| 568 | set_bit(TTY_IO_ERROR, &info->tty->flags); |
| 569 | |
| 570 | if (info->flags & UIF_INITIALIZED) { |
| 571 | info->flags &= ~UIF_INITIALIZED; |
| 572 | |
| 573 | if (!info->tty || (info->tty->termios.c_cflag & HUPCL)) |
| 574 | uart_clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); |
| 575 | |
| 576 | wake_up_interruptible(&info->delta_msr_wait); |
| 577 | |
| 578 | port->ops->shutdown(port); |
| 579 | |
| 580 | synchronize_irq(port->irq); |
| 581 | } |
| 582 | tasklet_kill(&info->tlet); |
| 583 | |
| 584 | if (info->xmit.buf) { |
| 585 | free_page((unsigned long)info->xmit.buf); |
| 586 | info->xmit.buf = NULL; |
| 587 | } |
| 588 | } |
| 589 | |
| 590 | static void mp_change_speed(struct sb_uart_state *state, struct MP_TERMIOS *old_termios) |
| 591 | { |
| 592 | struct tty_struct *tty = state->info->tty; |
| 593 | struct sb_uart_port *port = state->port; |
| 594 | |
| 595 | if (!tty || port->type == PORT_UNKNOWN) |
| 596 | return; |
| 597 | |
| 598 | if (tty->termios.c_cflag & CRTSCTS) |
| 599 | state->info->flags |= UIF_CTS_FLOW; |
| 600 | else |
| 601 | state->info->flags &= ~UIF_CTS_FLOW; |
| 602 | |
| 603 | if (tty->termios.c_cflag & CLOCAL) |
| 604 | state->info->flags &= ~UIF_CHECK_CD; |
| 605 | else |
| 606 | state->info->flags |= UIF_CHECK_CD; |
| 607 | |
| 608 | port->ops->set_termios(port, &tty->termios, old_termios); |
| 609 | } |
| 610 | |
| 611 | static inline int __mp_put_char(struct sb_uart_port *port, struct circ_buf *circ, unsigned char c) |
| 612 | { |
| 613 | unsigned long flags; |
| 614 | int ret = 0; |
| 615 | |
| 616 | if (!circ->buf) |
| 617 | return 0; |
| 618 | |
| 619 | spin_lock_irqsave(&port->lock, flags); |
| 620 | if (uart_circ_chars_free(circ) != 0) { |
| 621 | circ->buf[circ->head] = c; |
| 622 | circ->head = (circ->head + 1) & (UART_XMIT_SIZE - 1); |
| 623 | ret = 1; |
| 624 | } |
| 625 | spin_unlock_irqrestore(&port->lock, flags); |
| 626 | return ret; |
| 627 | } |
| 628 | |
| 629 | static int mp_put_char(struct tty_struct *tty, unsigned char ch) |
| 630 | { |
| 631 | struct sb_uart_state *state = tty->driver_data; |
| 632 | |
| 633 | return __mp_put_char(state->port, &state->info->xmit, ch); |
| 634 | } |
| 635 | |
| 636 | static void mp_put_chars(struct tty_struct *tty) |
| 637 | { |
| 638 | mp_start(tty); |
| 639 | } |
| 640 | |
Lidza Louina | 6f7f312 | 2013-05-10 11:05:37 -0400 | [diff] [blame^] | 641 | static int mp_write(struct tty_struct *tty, const unsigned char *buf, int count) |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 642 | { |
| 643 | struct sb_uart_state *state = tty->driver_data; |
| 644 | struct sb_uart_port *port; |
| 645 | struct circ_buf *circ; |
| 646 | int c, ret = 0; |
| 647 | |
| 648 | if (!state || !state->info) { |
| 649 | return -EL3HLT; |
| 650 | } |
| 651 | |
| 652 | port = state->port; |
| 653 | circ = &state->info->xmit; |
| 654 | |
| 655 | if (!circ->buf) |
| 656 | return 0; |
| 657 | |
| 658 | while (1) { |
| 659 | c = CIRC_SPACE_TO_END(circ->head, circ->tail, UART_XMIT_SIZE); |
| 660 | if (count < c) |
| 661 | c = count; |
| 662 | if (c <= 0) |
| 663 | break; |
| 664 | memcpy(circ->buf + circ->head, buf, c); |
| 665 | |
| 666 | circ->head = (circ->head + c) & (UART_XMIT_SIZE - 1); |
| 667 | buf += c; |
| 668 | count -= c; |
| 669 | ret += c; |
| 670 | } |
| 671 | mp_start(tty); |
| 672 | return ret; |
| 673 | } |
| 674 | |
| 675 | static int mp_write_room(struct tty_struct *tty) |
| 676 | { |
| 677 | struct sb_uart_state *state = tty->driver_data; |
| 678 | |
| 679 | return uart_circ_chars_free(&state->info->xmit); |
| 680 | } |
| 681 | |
| 682 | static int mp_chars_in_buffer(struct tty_struct *tty) |
| 683 | { |
| 684 | struct sb_uart_state *state = tty->driver_data; |
| 685 | |
| 686 | return uart_circ_chars_pending(&state->info->xmit); |
| 687 | } |
| 688 | |
| 689 | static void mp_flush_buffer(struct tty_struct *tty) |
| 690 | { |
| 691 | struct sb_uart_state *state = tty->driver_data; |
Wei Yongjun | b0ab023 | 2012-11-28 21:30:01 -0500 | [diff] [blame] | 692 | struct sb_uart_port *port; |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 693 | unsigned long flags; |
| 694 | |
| 695 | if (!state || !state->info) { |
| 696 | return; |
| 697 | } |
| 698 | |
Wei Yongjun | b0ab023 | 2012-11-28 21:30:01 -0500 | [diff] [blame] | 699 | port = state->port; |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 700 | spin_lock_irqsave(&port->lock, flags); |
| 701 | uart_circ_clear(&state->info->xmit); |
| 702 | spin_unlock_irqrestore(&port->lock, flags); |
| 703 | wake_up_interruptible(&tty->write_wait); |
| 704 | tty_wakeup(tty); |
| 705 | } |
| 706 | |
| 707 | static void mp_send_xchar(struct tty_struct *tty, char ch) |
| 708 | { |
| 709 | struct sb_uart_state *state = tty->driver_data; |
| 710 | struct sb_uart_port *port = state->port; |
| 711 | unsigned long flags; |
| 712 | |
| 713 | if (port->ops->send_xchar) |
| 714 | port->ops->send_xchar(port, ch); |
| 715 | else { |
| 716 | port->x_char = ch; |
| 717 | if (ch) { |
| 718 | spin_lock_irqsave(&port->lock, flags); |
| 719 | port->ops->start_tx(port); |
| 720 | spin_unlock_irqrestore(&port->lock, flags); |
| 721 | } |
| 722 | } |
| 723 | } |
| 724 | |
| 725 | static void mp_throttle(struct tty_struct *tty) |
| 726 | { |
| 727 | struct sb_uart_state *state = tty->driver_data; |
| 728 | |
| 729 | if (I_IXOFF(tty)) |
| 730 | mp_send_xchar(tty, STOP_CHAR(tty)); |
| 731 | |
| 732 | if (tty->termios.c_cflag & CRTSCTS) |
| 733 | uart_clear_mctrl(state->port, TIOCM_RTS); |
| 734 | } |
| 735 | |
| 736 | static void mp_unthrottle(struct tty_struct *tty) |
| 737 | { |
| 738 | struct sb_uart_state *state = tty->driver_data; |
| 739 | struct sb_uart_port *port = state->port; |
| 740 | |
| 741 | if (I_IXOFF(tty)) { |
| 742 | if (port->x_char) |
| 743 | port->x_char = 0; |
| 744 | else |
| 745 | mp_send_xchar(tty, START_CHAR(tty)); |
| 746 | } |
| 747 | |
| 748 | if (tty->termios.c_cflag & CRTSCTS) |
| 749 | uart_set_mctrl(port, TIOCM_RTS); |
| 750 | } |
| 751 | |
| 752 | static int mp_get_info(struct sb_uart_state *state, struct serial_struct *retinfo) |
| 753 | { |
| 754 | struct sb_uart_port *port = state->port; |
| 755 | struct serial_struct tmp; |
| 756 | |
| 757 | memset(&tmp, 0, sizeof(tmp)); |
| 758 | tmp.type = port->type; |
| 759 | tmp.line = port->line; |
| 760 | tmp.port = port->iobase; |
| 761 | if (HIGH_BITS_OFFSET) |
| 762 | tmp.port_high = (long) port->iobase >> HIGH_BITS_OFFSET; |
| 763 | tmp.irq = port->irq; |
| 764 | tmp.flags = port->flags; |
| 765 | tmp.xmit_fifo_size = port->fifosize; |
| 766 | tmp.baud_base = port->uartclk / 16; |
| 767 | tmp.close_delay = state->close_delay; |
| 768 | tmp.closing_wait = state->closing_wait == USF_CLOSING_WAIT_NONE ? |
| 769 | ASYNC_CLOSING_WAIT_NONE : |
| 770 | state->closing_wait; |
| 771 | tmp.custom_divisor = port->custom_divisor; |
| 772 | tmp.hub6 = port->hub6; |
| 773 | tmp.io_type = port->iotype; |
| 774 | tmp.iomem_reg_shift = port->regshift; |
| 775 | tmp.iomem_base = (void *)port->mapbase; |
| 776 | |
| 777 | if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) |
| 778 | return -EFAULT; |
| 779 | return 0; |
| 780 | } |
| 781 | |
| 782 | static int mp_set_info(struct sb_uart_state *state, struct serial_struct *newinfo) |
| 783 | { |
| 784 | struct serial_struct new_serial; |
| 785 | struct sb_uart_port *port = state->port; |
| 786 | unsigned long new_port; |
| 787 | unsigned int change_irq, change_port, closing_wait; |
| 788 | unsigned int old_custom_divisor; |
| 789 | unsigned int old_flags, new_flags; |
| 790 | int retval = 0; |
| 791 | |
| 792 | if (copy_from_user(&new_serial, newinfo, sizeof(new_serial))) |
| 793 | return -EFAULT; |
| 794 | |
| 795 | new_port = new_serial.port; |
| 796 | if (HIGH_BITS_OFFSET) |
| 797 | new_port += (unsigned long) new_serial.port_high << HIGH_BITS_OFFSET; |
| 798 | |
| 799 | new_serial.irq = irq_canonicalize(new_serial.irq); |
| 800 | |
| 801 | closing_wait = new_serial.closing_wait == ASYNC_CLOSING_WAIT_NONE ? |
| 802 | USF_CLOSING_WAIT_NONE : new_serial.closing_wait; |
| 803 | MP_STATE_LOCK(state); |
| 804 | |
| 805 | change_irq = new_serial.irq != port->irq; |
| 806 | change_port = new_port != port->iobase || |
| 807 | (unsigned long)new_serial.iomem_base != port->mapbase || |
| 808 | new_serial.hub6 != port->hub6 || |
| 809 | new_serial.io_type != port->iotype || |
| 810 | new_serial.iomem_reg_shift != port->regshift || |
| 811 | new_serial.type != port->type; |
| 812 | old_flags = port->flags; |
| 813 | new_flags = new_serial.flags; |
| 814 | old_custom_divisor = port->custom_divisor; |
| 815 | |
| 816 | if (!capable(CAP_SYS_ADMIN)) { |
| 817 | retval = -EPERM; |
| 818 | if (change_irq || change_port || |
| 819 | (new_serial.baud_base != port->uartclk / 16) || |
| 820 | (new_serial.close_delay != state->close_delay) || |
| 821 | (closing_wait != state->closing_wait) || |
| 822 | (new_serial.xmit_fifo_size != port->fifosize) || |
| 823 | (((new_flags ^ old_flags) & ~UPF_USR_MASK) != 0)) |
| 824 | goto exit; |
| 825 | port->flags = ((port->flags & ~UPF_USR_MASK) | |
| 826 | (new_flags & UPF_USR_MASK)); |
| 827 | port->custom_divisor = new_serial.custom_divisor; |
| 828 | goto check_and_exit; |
| 829 | } |
| 830 | |
| 831 | if (port->ops->verify_port) |
| 832 | retval = port->ops->verify_port(port, &new_serial); |
| 833 | |
| 834 | if ((new_serial.irq >= NR_IRQS) || (new_serial.irq < 0) || |
| 835 | (new_serial.baud_base < 9600)) |
| 836 | retval = -EINVAL; |
| 837 | |
| 838 | if (retval) |
| 839 | goto exit; |
| 840 | |
| 841 | if (change_port || change_irq) { |
| 842 | retval = -EBUSY; |
| 843 | |
| 844 | if (uart_users(state) > 1) |
| 845 | goto exit; |
| 846 | |
| 847 | mp_shutdown(state); |
| 848 | } |
| 849 | |
| 850 | if (change_port) { |
| 851 | unsigned long old_iobase, old_mapbase; |
| 852 | unsigned int old_type, old_iotype, old_hub6, old_shift; |
| 853 | |
| 854 | old_iobase = port->iobase; |
| 855 | old_mapbase = port->mapbase; |
| 856 | old_type = port->type; |
| 857 | old_hub6 = port->hub6; |
| 858 | old_iotype = port->iotype; |
| 859 | old_shift = port->regshift; |
| 860 | |
| 861 | if (old_type != PORT_UNKNOWN) |
| 862 | port->ops->release_port(port); |
| 863 | |
| 864 | port->iobase = new_port; |
| 865 | port->type = new_serial.type; |
| 866 | port->hub6 = new_serial.hub6; |
| 867 | port->iotype = new_serial.io_type; |
| 868 | port->regshift = new_serial.iomem_reg_shift; |
| 869 | port->mapbase = (unsigned long)new_serial.iomem_base; |
| 870 | |
| 871 | if (port->type != PORT_UNKNOWN) { |
| 872 | retval = port->ops->request_port(port); |
| 873 | } else { |
| 874 | retval = 0; |
| 875 | } |
| 876 | |
| 877 | if (retval && old_type != PORT_UNKNOWN) { |
| 878 | port->iobase = old_iobase; |
| 879 | port->type = old_type; |
| 880 | port->hub6 = old_hub6; |
| 881 | port->iotype = old_iotype; |
| 882 | port->regshift = old_shift; |
| 883 | port->mapbase = old_mapbase; |
| 884 | retval = port->ops->request_port(port); |
| 885 | if (retval) |
| 886 | port->type = PORT_UNKNOWN; |
| 887 | |
| 888 | retval = -EBUSY; |
| 889 | } |
| 890 | } |
| 891 | |
| 892 | port->irq = new_serial.irq; |
| 893 | port->uartclk = new_serial.baud_base * 16; |
| 894 | port->flags = (port->flags & ~UPF_CHANGE_MASK) | |
| 895 | (new_flags & UPF_CHANGE_MASK); |
| 896 | port->custom_divisor = new_serial.custom_divisor; |
| 897 | state->close_delay = new_serial.close_delay; |
| 898 | state->closing_wait = closing_wait; |
| 899 | port->fifosize = new_serial.xmit_fifo_size; |
| 900 | if (state->info->tty) |
| 901 | state->info->tty->low_latency = |
| 902 | (port->flags & UPF_LOW_LATENCY) ? 1 : 0; |
| 903 | |
| 904 | check_and_exit: |
| 905 | retval = 0; |
| 906 | if (port->type == PORT_UNKNOWN) |
| 907 | goto exit; |
| 908 | if (state->info->flags & UIF_INITIALIZED) { |
| 909 | if (((old_flags ^ port->flags) & UPF_SPD_MASK) || |
| 910 | old_custom_divisor != port->custom_divisor) { |
| 911 | if (port->flags & UPF_SPD_MASK) { |
| 912 | printk(KERN_NOTICE |
| 913 | "%s sets custom speed on ttyMP%d. This " |
| 914 | "is deprecated.\n", current->comm, |
| 915 | port->line); |
| 916 | } |
| 917 | mp_change_speed(state, NULL); |
| 918 | } |
| 919 | } else |
| 920 | retval = mp_startup(state, 1); |
| 921 | exit: |
| 922 | MP_STATE_UNLOCK(state); |
| 923 | return retval; |
| 924 | } |
| 925 | |
| 926 | |
| 927 | static int mp_get_lsr_info(struct sb_uart_state *state, unsigned int *value) |
| 928 | { |
| 929 | struct sb_uart_port *port = state->port; |
| 930 | unsigned int result; |
| 931 | |
| 932 | result = port->ops->tx_empty(port); |
| 933 | |
| 934 | if (port->x_char || |
| 935 | ((uart_circ_chars_pending(&state->info->xmit) > 0) && |
| 936 | !state->info->tty->stopped && !state->info->tty->hw_stopped)) |
| 937 | result &= ~TIOCSER_TEMT; |
| 938 | |
| 939 | return put_user(result, value); |
| 940 | } |
| 941 | |
| 942 | static int mp_tiocmget(struct tty_struct *tty) |
| 943 | { |
| 944 | struct sb_uart_state *state = tty->driver_data; |
| 945 | struct sb_uart_port *port = state->port; |
| 946 | int result = -EIO; |
| 947 | |
| 948 | MP_STATE_LOCK(state); |
| 949 | if (!(tty->flags & (1 << TTY_IO_ERROR))) { |
| 950 | result = port->mctrl; |
| 951 | spin_lock_irq(&port->lock); |
| 952 | result |= port->ops->get_mctrl(port); |
| 953 | spin_unlock_irq(&port->lock); |
| 954 | } |
| 955 | MP_STATE_UNLOCK(state); |
| 956 | return result; |
| 957 | } |
| 958 | |
| 959 | static int mp_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear) |
| 960 | { |
| 961 | struct sb_uart_state *state = tty->driver_data; |
| 962 | struct sb_uart_port *port = state->port; |
| 963 | int ret = -EIO; |
| 964 | |
| 965 | |
| 966 | MP_STATE_LOCK(state); |
| 967 | if (!(tty->flags & (1 << TTY_IO_ERROR))) { |
| 968 | mp_update_mctrl(port, set, clear); |
| 969 | ret = 0; |
| 970 | } |
| 971 | MP_STATE_UNLOCK(state); |
| 972 | |
| 973 | return ret; |
| 974 | } |
| 975 | |
| 976 | static int mp_break_ctl(struct tty_struct *tty, int break_state) |
| 977 | { |
| 978 | struct sb_uart_state *state = tty->driver_data; |
| 979 | struct sb_uart_port *port = state->port; |
| 980 | |
| 981 | MP_STATE_LOCK(state); |
| 982 | |
| 983 | if (port->type != PORT_UNKNOWN) |
| 984 | port->ops->break_ctl(port, break_state); |
| 985 | |
| 986 | MP_STATE_UNLOCK(state); |
| 987 | return 0; |
| 988 | } |
| 989 | |
| 990 | static int mp_do_autoconfig(struct sb_uart_state *state) |
| 991 | { |
| 992 | struct sb_uart_port *port = state->port; |
| 993 | int flags, ret; |
| 994 | |
| 995 | if (!capable(CAP_SYS_ADMIN)) |
| 996 | return -EPERM; |
| 997 | |
| 998 | if (mutex_lock_interruptible(&state->mutex)) |
| 999 | return -ERESTARTSYS; |
| 1000 | ret = -EBUSY; |
| 1001 | if (uart_users(state) == 1) { |
| 1002 | mp_shutdown(state); |
| 1003 | |
| 1004 | if (port->type != PORT_UNKNOWN) |
| 1005 | port->ops->release_port(port); |
| 1006 | |
| 1007 | flags = UART_CONFIG_TYPE; |
| 1008 | if (port->flags & UPF_AUTO_IRQ) |
| 1009 | flags |= UART_CONFIG_IRQ; |
| 1010 | |
| 1011 | port->ops->config_port(port, flags); |
| 1012 | |
| 1013 | ret = mp_startup(state, 1); |
| 1014 | } |
| 1015 | MP_STATE_UNLOCK(state); |
| 1016 | return ret; |
| 1017 | } |
| 1018 | |
| 1019 | static int mp_wait_modem_status(struct sb_uart_state *state, unsigned long arg) |
| 1020 | { |
| 1021 | struct sb_uart_port *port = state->port; |
| 1022 | DECLARE_WAITQUEUE(wait, current); |
| 1023 | struct sb_uart_icount cprev, cnow; |
| 1024 | int ret; |
| 1025 | |
| 1026 | spin_lock_irq(&port->lock); |
| 1027 | memcpy(&cprev, &port->icount, sizeof(struct sb_uart_icount)); |
| 1028 | |
| 1029 | port->ops->enable_ms(port); |
| 1030 | spin_unlock_irq(&port->lock); |
| 1031 | |
| 1032 | add_wait_queue(&state->info->delta_msr_wait, &wait); |
| 1033 | for (;;) { |
| 1034 | spin_lock_irq(&port->lock); |
| 1035 | memcpy(&cnow, &port->icount, sizeof(struct sb_uart_icount)); |
| 1036 | spin_unlock_irq(&port->lock); |
| 1037 | |
| 1038 | set_current_state(TASK_INTERRUPTIBLE); |
| 1039 | |
| 1040 | if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || |
| 1041 | ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || |
| 1042 | ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || |
| 1043 | ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) { |
| 1044 | ret = 0; |
| 1045 | break; |
| 1046 | } |
| 1047 | |
| 1048 | schedule(); |
| 1049 | |
| 1050 | if (signal_pending(current)) { |
| 1051 | ret = -ERESTARTSYS; |
| 1052 | break; |
| 1053 | } |
| 1054 | |
| 1055 | cprev = cnow; |
| 1056 | } |
| 1057 | |
| 1058 | current->state = TASK_RUNNING; |
| 1059 | remove_wait_queue(&state->info->delta_msr_wait, &wait); |
| 1060 | |
| 1061 | return ret; |
| 1062 | } |
| 1063 | |
| 1064 | static int mp_get_count(struct sb_uart_state *state, struct serial_icounter_struct *icnt) |
| 1065 | { |
| 1066 | struct serial_icounter_struct icount; |
| 1067 | struct sb_uart_icount cnow; |
| 1068 | struct sb_uart_port *port = state->port; |
| 1069 | |
| 1070 | spin_lock_irq(&port->lock); |
| 1071 | memcpy(&cnow, &port->icount, sizeof(struct sb_uart_icount)); |
| 1072 | spin_unlock_irq(&port->lock); |
| 1073 | |
| 1074 | icount.cts = cnow.cts; |
| 1075 | icount.dsr = cnow.dsr; |
| 1076 | icount.rng = cnow.rng; |
| 1077 | icount.dcd = cnow.dcd; |
| 1078 | icount.rx = cnow.rx; |
| 1079 | icount.tx = cnow.tx; |
| 1080 | icount.frame = cnow.frame; |
| 1081 | icount.overrun = cnow.overrun; |
| 1082 | icount.parity = cnow.parity; |
| 1083 | icount.brk = cnow.brk; |
| 1084 | icount.buf_overrun = cnow.buf_overrun; |
| 1085 | |
| 1086 | return copy_to_user(icnt, &icount, sizeof(icount)) ? -EFAULT : 0; |
| 1087 | } |
| 1088 | |
| 1089 | static int mp_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) |
| 1090 | { |
| 1091 | struct sb_uart_state *state = tty->driver_data; |
| 1092 | struct mp_port *info = (struct mp_port *)state->port; |
| 1093 | int ret = -ENOIOCTLCMD; |
| 1094 | |
| 1095 | |
| 1096 | switch (cmd) { |
| 1097 | case TIOCSMULTIDROP: |
| 1098 | /* set multi-drop mode enable or disable, and default operation mode is H/W mode */ |
| 1099 | if (info->port.type == PORT_16C105XA) |
| 1100 | { |
| 1101 | //arg &= ~0x6; |
| 1102 | //state->port->mdmode = 0; |
| 1103 | return set_multidrop_mode((struct sb_uart_port *)info, (unsigned int)arg); |
| 1104 | } |
| 1105 | ret = -ENOTSUPP; |
| 1106 | break; |
| 1107 | case GETDEEPFIFO: |
| 1108 | ret = get_deep_fifo(state->port); |
| 1109 | return ret; |
| 1110 | case SETDEEPFIFO: |
| 1111 | ret = set_deep_fifo(state->port,arg); |
| 1112 | deep[state->port->line] = arg; |
| 1113 | return ret; |
| 1114 | case SETTTR: |
| 1115 | if (info->port.type == PORT_16C105X || info->port.type == PORT_16C105XA){ |
| 1116 | ret = sb1054_set_register(state->port,PAGE_4,SB105X_TTR,arg); |
| 1117 | ttr[state->port->line] = arg; |
| 1118 | } |
| 1119 | return ret; |
| 1120 | case SETRTR: |
| 1121 | if (info->port.type == PORT_16C105X || info->port.type == PORT_16C105XA){ |
| 1122 | ret = sb1054_set_register(state->port,PAGE_4,SB105X_RTR,arg); |
| 1123 | rtr[state->port->line] = arg; |
| 1124 | } |
| 1125 | return ret; |
| 1126 | case GETTTR: |
| 1127 | if (info->port.type == PORT_16C105X || info->port.type == PORT_16C105XA){ |
| 1128 | ret = sb1054_get_register(state->port,PAGE_4,SB105X_TTR); |
| 1129 | } |
| 1130 | return ret; |
| 1131 | case GETRTR: |
| 1132 | if (info->port.type == PORT_16C105X || info->port.type == PORT_16C105XA){ |
| 1133 | ret = sb1054_get_register(state->port,PAGE_4,SB105X_RTR); |
| 1134 | } |
| 1135 | return ret; |
| 1136 | |
| 1137 | case SETFCR: |
| 1138 | if (info->port.type == PORT_16C105X || info->port.type == PORT_16C105XA){ |
| 1139 | ret = sb1054_set_register(state->port,PAGE_1,SB105X_FCR,arg); |
| 1140 | } |
| 1141 | else{ |
| 1142 | serial_out(info,2,arg); |
| 1143 | } |
| 1144 | |
| 1145 | return ret; |
| 1146 | case TIOCSMDADDR: |
| 1147 | /* set multi-drop address */ |
| 1148 | if (info->port.type == PORT_16C105XA) |
| 1149 | { |
| 1150 | state->port->mdmode |= MDMODE_ADDR; |
| 1151 | return set_multidrop_addr((struct sb_uart_port *)info, (unsigned int)arg); |
| 1152 | } |
| 1153 | ret = -ENOTSUPP; |
| 1154 | break; |
| 1155 | |
| 1156 | case TIOCGMDADDR: |
| 1157 | /* set multi-drop address */ |
| 1158 | if ((info->port.type == PORT_16C105XA) && (state->port->mdmode & MDMODE_ADDR)) |
| 1159 | { |
| 1160 | return get_multidrop_addr((struct sb_uart_port *)info); |
| 1161 | } |
| 1162 | ret = -ENOTSUPP; |
| 1163 | break; |
| 1164 | |
| 1165 | case TIOCSENDADDR: |
| 1166 | /* send address in multi-drop mode */ |
| 1167 | if ((info->port.type == PORT_16C105XA) |
| 1168 | && (state->port->mdmode & (MDMODE_ENABLE))) |
| 1169 | { |
| 1170 | if (mp_chars_in_buffer(tty) > 0) |
| 1171 | { |
| 1172 | tty_wait_until_sent(tty, 0); |
| 1173 | } |
| 1174 | //while ((serial_in(info, UART_LSR) & 0x60) != 0x60); |
| 1175 | //while (sb1054_get_register(state->port, PAGE_2, SB105X_TFCR) != 0); |
| 1176 | while ((serial_in(info, UART_LSR) & 0x60) != 0x60); |
| 1177 | serial_out(info, UART_SCR, (int)arg); |
| 1178 | } |
| 1179 | break; |
| 1180 | |
| 1181 | case TIOCGSERIAL: |
| 1182 | ret = mp_get_info(state, (struct serial_struct *)arg); |
| 1183 | break; |
| 1184 | |
| 1185 | case TIOCSSERIAL: |
| 1186 | ret = mp_set_info(state, (struct serial_struct *)arg); |
| 1187 | break; |
| 1188 | |
| 1189 | case TIOCSERCONFIG: |
| 1190 | ret = mp_do_autoconfig(state); |
| 1191 | break; |
| 1192 | |
| 1193 | case TIOCSERGWILD: /* obsolete */ |
| 1194 | case TIOCSERSWILD: /* obsolete */ |
| 1195 | ret = 0; |
| 1196 | break; |
| 1197 | /* for Multiport */ |
| 1198 | case TIOCGNUMOFPORT: /* Get number of ports */ |
| 1199 | return NR_PORTS; |
| 1200 | case TIOCGGETDEVID: |
| 1201 | return mp_devs[arg].device_id; |
| 1202 | case TIOCGGETREV: |
| 1203 | return mp_devs[arg].revision; |
| 1204 | case TIOCGGETNRPORTS: |
| 1205 | return mp_devs[arg].nr_ports; |
| 1206 | case TIOCGGETBDNO: |
| 1207 | return NR_BOARD; |
| 1208 | case TIOCGGETINTERFACE: |
| 1209 | if (mp_devs[arg].revision == 0xc0) |
| 1210 | { |
| 1211 | /* for SB16C1053APCI */ |
| 1212 | return (sb1053a_get_interface(info, info->port.line)); |
| 1213 | } |
| 1214 | else |
| 1215 | { |
| 1216 | return (inb(mp_devs[arg].option_reg_addr+MP_OPTR_IIR0+(state->port->line/8))); |
| 1217 | } |
| 1218 | case TIOCGGETPORTTYPE: |
| 1219 | ret = get_device_type(arg);; |
| 1220 | return ret; |
| 1221 | case TIOCSMULTIECHO: /* set to multi-drop mode(RS422) or echo mode(RS485)*/ |
| 1222 | outb( ( inb(info->interface_config_addr) & ~0x03 ) | 0x01 , |
| 1223 | info->interface_config_addr); |
| 1224 | return 0; |
| 1225 | case TIOCSPTPNOECHO: /* set to multi-drop mode(RS422) or echo mode(RS485) */ |
| 1226 | outb( ( inb(info->interface_config_addr) & ~0x03 ) , |
| 1227 | info->interface_config_addr); |
| 1228 | return 0; |
| 1229 | } |
| 1230 | |
| 1231 | if (ret != -ENOIOCTLCMD) |
| 1232 | goto out; |
| 1233 | |
| 1234 | if (tty->flags & (1 << TTY_IO_ERROR)) { |
| 1235 | ret = -EIO; |
| 1236 | goto out; |
| 1237 | } |
| 1238 | |
| 1239 | switch (cmd) { |
| 1240 | case TIOCMIWAIT: |
| 1241 | ret = mp_wait_modem_status(state, arg); |
| 1242 | break; |
| 1243 | |
| 1244 | case TIOCGICOUNT: |
| 1245 | ret = mp_get_count(state, (struct serial_icounter_struct *)arg); |
| 1246 | break; |
| 1247 | } |
| 1248 | |
| 1249 | if (ret != -ENOIOCTLCMD) |
| 1250 | goto out; |
| 1251 | |
| 1252 | MP_STATE_LOCK(state); |
| 1253 | switch (cmd) { |
| 1254 | case TIOCSERGETLSR: /* Get line status register */ |
| 1255 | ret = mp_get_lsr_info(state, (unsigned int *)arg); |
| 1256 | break; |
| 1257 | |
| 1258 | default: { |
| 1259 | struct sb_uart_port *port = state->port; |
| 1260 | if (port->ops->ioctl) |
| 1261 | ret = port->ops->ioctl(port, cmd, arg); |
| 1262 | break; |
| 1263 | } |
| 1264 | } |
| 1265 | |
| 1266 | MP_STATE_UNLOCK(state); |
| 1267 | out: |
| 1268 | return ret; |
| 1269 | } |
| 1270 | |
| 1271 | static void mp_set_termios(struct tty_struct *tty, struct MP_TERMIOS *old_termios) |
| 1272 | { |
| 1273 | struct sb_uart_state *state = tty->driver_data; |
| 1274 | unsigned long flags; |
| 1275 | unsigned int cflag = tty->termios.c_cflag; |
| 1276 | |
| 1277 | #define RELEVANT_IFLAG(iflag) ((iflag) & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK)) |
| 1278 | |
| 1279 | if ((cflag ^ old_termios->c_cflag) == 0 && |
| 1280 | RELEVANT_IFLAG(tty->termios.c_iflag ^ old_termios->c_iflag) == 0) |
| 1281 | return; |
| 1282 | |
| 1283 | mp_change_speed(state, old_termios); |
| 1284 | |
| 1285 | if ((old_termios->c_cflag & CBAUD) && !(cflag & CBAUD)) |
| 1286 | uart_clear_mctrl(state->port, TIOCM_RTS | TIOCM_DTR); |
| 1287 | |
| 1288 | if (!(old_termios->c_cflag & CBAUD) && (cflag & CBAUD)) { |
| 1289 | unsigned int mask = TIOCM_DTR; |
| 1290 | if (!(cflag & CRTSCTS) || |
| 1291 | !test_bit(TTY_THROTTLED, &tty->flags)) |
| 1292 | mask |= TIOCM_RTS; |
| 1293 | uart_set_mctrl(state->port, mask); |
| 1294 | } |
| 1295 | |
| 1296 | if ((old_termios->c_cflag & CRTSCTS) && !(cflag & CRTSCTS)) { |
| 1297 | spin_lock_irqsave(&state->port->lock, flags); |
| 1298 | tty->hw_stopped = 0; |
| 1299 | __mp_start(tty); |
| 1300 | spin_unlock_irqrestore(&state->port->lock, flags); |
| 1301 | } |
| 1302 | |
| 1303 | if (!(old_termios->c_cflag & CRTSCTS) && (cflag & CRTSCTS)) { |
| 1304 | spin_lock_irqsave(&state->port->lock, flags); |
| 1305 | if (!(state->port->ops->get_mctrl(state->port) & TIOCM_CTS)) { |
| 1306 | tty->hw_stopped = 1; |
| 1307 | state->port->ops->stop_tx(state->port); |
| 1308 | } |
| 1309 | spin_unlock_irqrestore(&state->port->lock, flags); |
| 1310 | } |
| 1311 | } |
| 1312 | |
| 1313 | static void mp_close(struct tty_struct *tty, struct file *filp) |
| 1314 | { |
| 1315 | struct sb_uart_state *state = tty->driver_data; |
| 1316 | struct sb_uart_port *port; |
| 1317 | |
| 1318 | printk("mp_close!\n"); |
| 1319 | if (!state || !state->port) |
| 1320 | return; |
| 1321 | |
| 1322 | port = state->port; |
| 1323 | |
| 1324 | printk("close1 %d\n", __LINE__); |
| 1325 | MP_STATE_LOCK(state); |
| 1326 | |
| 1327 | printk("close2 %d\n", __LINE__); |
| 1328 | if (tty_hung_up_p(filp)) |
| 1329 | goto done; |
| 1330 | |
| 1331 | printk("close3 %d\n", __LINE__); |
| 1332 | if ((tty->count == 1) && (state->count != 1)) { |
| 1333 | printk("mp_close: bad serial port count; tty->count is 1, " |
| 1334 | "state->count is %d\n", state->count); |
| 1335 | state->count = 1; |
| 1336 | } |
| 1337 | printk("close4 %d\n", __LINE__); |
| 1338 | if (--state->count < 0) { |
| 1339 | printk("rs_close: bad serial port count for ttyMP%d: %d\n", |
| 1340 | port->line, state->count); |
| 1341 | state->count = 0; |
| 1342 | } |
| 1343 | if (state->count) |
| 1344 | goto done; |
| 1345 | |
| 1346 | tty->closing = 1; |
| 1347 | |
| 1348 | printk("close5 %d\n", __LINE__); |
| 1349 | if (state->closing_wait != USF_CLOSING_WAIT_NONE) |
| 1350 | tty_wait_until_sent(tty, state->closing_wait); |
| 1351 | |
| 1352 | printk("close6 %d\n", __LINE__); |
| 1353 | if (state->info->flags & UIF_INITIALIZED) { |
| 1354 | unsigned long flags; |
| 1355 | spin_lock_irqsave(&port->lock, flags); |
| 1356 | port->ops->stop_rx(port); |
| 1357 | spin_unlock_irqrestore(&port->lock, flags); |
| 1358 | mp_wait_until_sent(tty, port->timeout); |
| 1359 | } |
| 1360 | printk("close7 %d\n", __LINE__); |
| 1361 | |
| 1362 | mp_shutdown(state); |
| 1363 | printk("close8 %d\n", __LINE__); |
| 1364 | mp_flush_buffer(tty); |
| 1365 | tty_ldisc_flush(tty); |
| 1366 | tty->closing = 0; |
| 1367 | state->info->tty = NULL; |
| 1368 | if (state->info->blocked_open) |
| 1369 | { |
| 1370 | if (state->close_delay) |
| 1371 | { |
| 1372 | set_current_state(TASK_INTERRUPTIBLE); |
| 1373 | schedule_timeout(state->close_delay); |
| 1374 | } |
| 1375 | } |
| 1376 | else |
| 1377 | { |
| 1378 | mp_change_pm(state, 3); |
| 1379 | } |
| 1380 | printk("close8 %d\n", __LINE__); |
| 1381 | |
| 1382 | state->info->flags &= ~UIF_NORMAL_ACTIVE; |
| 1383 | wake_up_interruptible(&state->info->open_wait); |
| 1384 | |
| 1385 | done: |
| 1386 | printk("close done\n"); |
| 1387 | MP_STATE_UNLOCK(state); |
| 1388 | module_put(THIS_MODULE); |
| 1389 | } |
| 1390 | |
| 1391 | static void mp_wait_until_sent(struct tty_struct *tty, int timeout) |
| 1392 | { |
| 1393 | struct sb_uart_state *state = tty->driver_data; |
| 1394 | struct sb_uart_port *port = state->port; |
| 1395 | unsigned long char_time, expire; |
| 1396 | |
| 1397 | if (port->type == PORT_UNKNOWN || port->fifosize == 0) |
| 1398 | return; |
| 1399 | |
| 1400 | char_time = (port->timeout - HZ/50) / port->fifosize; |
| 1401 | char_time = char_time / 5; |
| 1402 | if (char_time == 0) |
| 1403 | char_time = 1; |
| 1404 | if (timeout && timeout < char_time) |
| 1405 | char_time = timeout; |
| 1406 | |
| 1407 | if (timeout == 0 || timeout > 2 * port->timeout) |
| 1408 | timeout = 2 * port->timeout; |
| 1409 | |
| 1410 | expire = jiffies + timeout; |
| 1411 | |
| 1412 | while (!port->ops->tx_empty(port)) { |
| 1413 | set_current_state(TASK_INTERRUPTIBLE); |
| 1414 | schedule_timeout(char_time); |
| 1415 | if (signal_pending(current)) |
| 1416 | break; |
| 1417 | if (time_after(jiffies, expire)) |
| 1418 | break; |
| 1419 | } |
| 1420 | set_current_state(TASK_RUNNING); /* might not be needed */ |
| 1421 | } |
| 1422 | |
| 1423 | static void mp_hangup(struct tty_struct *tty) |
| 1424 | { |
| 1425 | struct sb_uart_state *state = tty->driver_data; |
| 1426 | |
| 1427 | MP_STATE_LOCK(state); |
| 1428 | if (state->info && state->info->flags & UIF_NORMAL_ACTIVE) { |
| 1429 | mp_flush_buffer(tty); |
| 1430 | mp_shutdown(state); |
| 1431 | state->count = 0; |
| 1432 | state->info->flags &= ~UIF_NORMAL_ACTIVE; |
| 1433 | state->info->tty = NULL; |
| 1434 | wake_up_interruptible(&state->info->open_wait); |
| 1435 | wake_up_interruptible(&state->info->delta_msr_wait); |
| 1436 | } |
| 1437 | MP_STATE_UNLOCK(state); |
| 1438 | } |
| 1439 | |
| 1440 | static void mp_update_termios(struct sb_uart_state *state) |
| 1441 | { |
| 1442 | struct tty_struct *tty = state->info->tty; |
| 1443 | struct sb_uart_port *port = state->port; |
| 1444 | |
| 1445 | if (!(tty->flags & (1 << TTY_IO_ERROR))) { |
| 1446 | mp_change_speed(state, NULL); |
| 1447 | |
| 1448 | if (tty->termios.c_cflag & CBAUD) |
| 1449 | uart_set_mctrl(port, TIOCM_DTR | TIOCM_RTS); |
| 1450 | } |
| 1451 | } |
| 1452 | |
| 1453 | static int mp_block_til_ready(struct file *filp, struct sb_uart_state *state) |
| 1454 | { |
| 1455 | DECLARE_WAITQUEUE(wait, current); |
| 1456 | struct sb_uart_info *info = state->info; |
| 1457 | struct sb_uart_port *port = state->port; |
| 1458 | unsigned int mctrl; |
| 1459 | |
| 1460 | info->blocked_open++; |
| 1461 | state->count--; |
| 1462 | |
| 1463 | add_wait_queue(&info->open_wait, &wait); |
| 1464 | while (1) { |
| 1465 | set_current_state(TASK_INTERRUPTIBLE); |
| 1466 | |
| 1467 | if (tty_hung_up_p(filp) || info->tty == NULL) |
| 1468 | break; |
| 1469 | |
| 1470 | if (!(info->flags & UIF_INITIALIZED)) |
| 1471 | break; |
| 1472 | |
| 1473 | if ((filp->f_flags & O_NONBLOCK) || |
| 1474 | (info->tty->termios.c_cflag & CLOCAL) || |
| 1475 | (info->tty->flags & (1 << TTY_IO_ERROR))) { |
| 1476 | break; |
| 1477 | } |
| 1478 | |
| 1479 | if (info->tty->termios.c_cflag & CBAUD) |
| 1480 | uart_set_mctrl(port, TIOCM_DTR); |
| 1481 | |
| 1482 | spin_lock_irq(&port->lock); |
| 1483 | port->ops->enable_ms(port); |
| 1484 | mctrl = port->ops->get_mctrl(port); |
| 1485 | spin_unlock_irq(&port->lock); |
| 1486 | if (mctrl & TIOCM_CAR) |
| 1487 | break; |
| 1488 | |
| 1489 | MP_STATE_UNLOCK(state); |
| 1490 | schedule(); |
| 1491 | MP_STATE_LOCK(state); |
| 1492 | |
| 1493 | if (signal_pending(current)) |
| 1494 | break; |
| 1495 | } |
| 1496 | set_current_state(TASK_RUNNING); |
| 1497 | remove_wait_queue(&info->open_wait, &wait); |
| 1498 | |
| 1499 | state->count++; |
| 1500 | info->blocked_open--; |
| 1501 | |
| 1502 | if (signal_pending(current)) |
| 1503 | return -ERESTARTSYS; |
| 1504 | |
| 1505 | if (!info->tty || tty_hung_up_p(filp)) |
| 1506 | return -EAGAIN; |
| 1507 | |
| 1508 | return 0; |
| 1509 | } |
| 1510 | |
| 1511 | static struct sb_uart_state *uart_get(struct uart_driver *drv, int line) |
| 1512 | { |
| 1513 | struct sb_uart_state *state; |
| 1514 | |
| 1515 | MP_MUTEX_LOCK(mp_mutex); |
| 1516 | state = drv->state + line; |
| 1517 | if (mutex_lock_interruptible(&state->mutex)) { |
| 1518 | state = ERR_PTR(-ERESTARTSYS); |
| 1519 | goto out; |
| 1520 | } |
| 1521 | state->count++; |
| 1522 | if (!state->port) { |
| 1523 | state->count--; |
| 1524 | MP_STATE_UNLOCK(state); |
| 1525 | state = ERR_PTR(-ENXIO); |
| 1526 | goto out; |
| 1527 | } |
| 1528 | |
| 1529 | if (!state->info) { |
| 1530 | state->info = kmalloc(sizeof(struct sb_uart_info), GFP_KERNEL); |
| 1531 | if (state->info) { |
| 1532 | memset(state->info, 0, sizeof(struct sb_uart_info)); |
| 1533 | init_waitqueue_head(&state->info->open_wait); |
| 1534 | init_waitqueue_head(&state->info->delta_msr_wait); |
| 1535 | |
| 1536 | state->port->info = state->info; |
| 1537 | |
| 1538 | tasklet_init(&state->info->tlet, mp_tasklet_action, |
| 1539 | (unsigned long)state); |
| 1540 | } else { |
| 1541 | state->count--; |
| 1542 | MP_STATE_UNLOCK(state); |
| 1543 | state = ERR_PTR(-ENOMEM); |
| 1544 | } |
| 1545 | } |
| 1546 | |
| 1547 | out: |
| 1548 | MP_MUTEX_UNLOCK(mp_mutex); |
| 1549 | return state; |
| 1550 | } |
| 1551 | |
| 1552 | static int mp_open(struct tty_struct *tty, struct file *filp) |
| 1553 | { |
| 1554 | struct uart_driver *drv = (struct uart_driver *)tty->driver->driver_state; |
| 1555 | struct sb_uart_state *state; |
| 1556 | int retval; |
| 1557 | int line = tty->index; |
| 1558 | struct mp_port *mtpt; |
| 1559 | |
| 1560 | retval = -ENODEV; |
| 1561 | if (line >= tty->driver->num) |
| 1562 | goto fail; |
| 1563 | |
| 1564 | state = uart_get(drv, line); |
| 1565 | |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 1566 | if (IS_ERR(state)) { |
| 1567 | retval = PTR_ERR(state); |
| 1568 | goto fail; |
| 1569 | } |
| 1570 | |
Dan Carpenter | 8441bf5 | 2013-01-09 10:10:59 +0300 | [diff] [blame] | 1571 | mtpt = (struct mp_port *)state->port; |
| 1572 | |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 1573 | tty->driver_data = state; |
| 1574 | tty->low_latency = (state->port->flags & UPF_LOW_LATENCY) ? 1 : 0; |
| 1575 | tty->alt_speed = 0; |
| 1576 | state->info->tty = tty; |
| 1577 | |
| 1578 | if (tty_hung_up_p(filp)) { |
| 1579 | retval = -EAGAIN; |
| 1580 | state->count--; |
| 1581 | MP_STATE_UNLOCK(state); |
| 1582 | goto fail; |
| 1583 | } |
| 1584 | |
| 1585 | if (state->count == 1) |
| 1586 | mp_change_pm(state, 0); |
| 1587 | |
| 1588 | retval = mp_startup(state, 0); |
| 1589 | |
| 1590 | if (retval == 0) |
| 1591 | retval = mp_block_til_ready(filp, state); |
| 1592 | MP_STATE_UNLOCK(state); |
| 1593 | |
| 1594 | if (retval == 0 && !(state->info->flags & UIF_NORMAL_ACTIVE)) { |
| 1595 | state->info->flags |= UIF_NORMAL_ACTIVE; |
| 1596 | |
| 1597 | mp_update_termios(state); |
| 1598 | } |
| 1599 | |
| 1600 | uart_clear_mctrl(state->port, TIOCM_RTS); |
| 1601 | try_module_get(THIS_MODULE); |
| 1602 | fail: |
| 1603 | return retval; |
| 1604 | } |
| 1605 | |
| 1606 | |
| 1607 | static const char *mp_type(struct sb_uart_port *port) |
| 1608 | { |
| 1609 | const char *str = NULL; |
| 1610 | |
| 1611 | if (port->ops->type) |
| 1612 | str = port->ops->type(port); |
| 1613 | |
| 1614 | if (!str) |
| 1615 | str = "unknown"; |
| 1616 | |
| 1617 | return str; |
| 1618 | } |
| 1619 | |
| 1620 | static void mp_change_pm(struct sb_uart_state *state, int pm_state) |
| 1621 | { |
| 1622 | struct sb_uart_port *port = state->port; |
| 1623 | if (port->ops->pm) |
| 1624 | port->ops->pm(port, pm_state, state->pm_state); |
| 1625 | state->pm_state = pm_state; |
| 1626 | } |
| 1627 | |
| 1628 | static inline void mp_report_port(struct uart_driver *drv, struct sb_uart_port *port) |
| 1629 | { |
| 1630 | char address[64]; |
| 1631 | |
| 1632 | switch (port->iotype) { |
| 1633 | case UPIO_PORT: |
| 1634 | snprintf(address, sizeof(address),"I/O 0x%x", port->iobase); |
| 1635 | break; |
| 1636 | case UPIO_HUB6: |
| 1637 | snprintf(address, sizeof(address),"I/O 0x%x offset 0x%x", port->iobase, port->hub6); |
| 1638 | break; |
| 1639 | case UPIO_MEM: |
| 1640 | snprintf(address, sizeof(address),"MMIO 0x%lx", port->mapbase); |
| 1641 | break; |
| 1642 | default: |
| 1643 | snprintf(address, sizeof(address),"*unknown*" ); |
| 1644 | strlcpy(address, "*unknown*", sizeof(address)); |
| 1645 | break; |
| 1646 | } |
| 1647 | |
| 1648 | printk( "%s%d at %s (irq = %d) is a %s\n", |
| 1649 | drv->dev_name, port->line, address, port->irq, mp_type(port)); |
| 1650 | |
| 1651 | } |
| 1652 | |
| 1653 | static void mp_configure_port(struct uart_driver *drv, struct sb_uart_state *state, struct sb_uart_port *port) |
| 1654 | { |
| 1655 | unsigned int flags; |
| 1656 | |
| 1657 | |
| 1658 | if (!port->iobase && !port->mapbase && !port->membase) |
| 1659 | { |
| 1660 | DPRINTK("%s error \n",__FUNCTION__); |
| 1661 | return; |
| 1662 | } |
| 1663 | flags = UART_CONFIG_TYPE; |
| 1664 | if (port->flags & UPF_AUTO_IRQ) |
| 1665 | flags |= UART_CONFIG_IRQ; |
| 1666 | if (port->flags & UPF_BOOT_AUTOCONF) { |
| 1667 | port->type = PORT_UNKNOWN; |
| 1668 | port->ops->config_port(port, flags); |
| 1669 | } |
| 1670 | |
| 1671 | if (port->type != PORT_UNKNOWN) { |
| 1672 | unsigned long flags; |
| 1673 | |
| 1674 | mp_report_port(drv, port); |
| 1675 | |
| 1676 | spin_lock_irqsave(&port->lock, flags); |
| 1677 | port->ops->set_mctrl(port, 0); |
| 1678 | spin_unlock_irqrestore(&port->lock, flags); |
| 1679 | |
| 1680 | mp_change_pm(state, 3); |
| 1681 | } |
| 1682 | } |
| 1683 | |
| 1684 | static void mp_unconfigure_port(struct uart_driver *drv, struct sb_uart_state *state) |
| 1685 | { |
| 1686 | struct sb_uart_port *port = state->port; |
| 1687 | struct sb_uart_info *info = state->info; |
| 1688 | |
| 1689 | if (info && info->tty) |
| 1690 | tty_hangup(info->tty); |
| 1691 | |
| 1692 | MP_STATE_LOCK(state); |
| 1693 | |
| 1694 | state->info = NULL; |
| 1695 | |
| 1696 | if (port->type != PORT_UNKNOWN) |
| 1697 | port->ops->release_port(port); |
| 1698 | |
| 1699 | port->type = PORT_UNKNOWN; |
| 1700 | |
| 1701 | if (info) { |
| 1702 | tasklet_kill(&info->tlet); |
| 1703 | kfree(info); |
| 1704 | } |
| 1705 | |
| 1706 | MP_STATE_UNLOCK(state); |
| 1707 | } |
| 1708 | static struct tty_operations mp_ops = { |
| 1709 | .open = mp_open, |
| 1710 | .close = mp_close, |
| 1711 | .write = mp_write, |
| 1712 | .put_char = mp_put_char, |
| 1713 | .flush_chars = mp_put_chars, |
| 1714 | .write_room = mp_write_room, |
| 1715 | .chars_in_buffer= mp_chars_in_buffer, |
| 1716 | .flush_buffer = mp_flush_buffer, |
| 1717 | .ioctl = mp_ioctl, |
| 1718 | .throttle = mp_throttle, |
| 1719 | .unthrottle = mp_unthrottle, |
| 1720 | .send_xchar = mp_send_xchar, |
| 1721 | .set_termios = mp_set_termios, |
| 1722 | .stop = mp_stop, |
| 1723 | .start = mp_start, |
| 1724 | .hangup = mp_hangup, |
| 1725 | .break_ctl = mp_break_ctl, |
| 1726 | .wait_until_sent= mp_wait_until_sent, |
| 1727 | #ifdef CONFIG_PROC_FS |
| 1728 | .proc_fops = NULL, |
| 1729 | #endif |
| 1730 | .tiocmget = mp_tiocmget, |
| 1731 | .tiocmset = mp_tiocmset, |
| 1732 | }; |
| 1733 | |
| 1734 | static int mp_register_driver(struct uart_driver *drv) |
| 1735 | { |
| 1736 | struct tty_driver *normal = NULL; |
| 1737 | int i, retval; |
| 1738 | |
| 1739 | drv->state = kmalloc(sizeof(struct sb_uart_state) * drv->nr, GFP_KERNEL); |
| 1740 | retval = -ENOMEM; |
| 1741 | if (!drv->state) |
| 1742 | { |
| 1743 | printk("SB PCI Error: Kernel memory allocation error!\n"); |
| 1744 | goto out; |
| 1745 | } |
| 1746 | memset(drv->state, 0, sizeof(struct sb_uart_state) * drv->nr); |
| 1747 | |
| 1748 | normal = alloc_tty_driver(drv->nr); |
| 1749 | if (!normal) |
| 1750 | { |
| 1751 | printk("SB PCI Error: tty allocation error!\n"); |
| 1752 | goto out; |
| 1753 | } |
| 1754 | |
| 1755 | drv->tty_driver = normal; |
| 1756 | |
| 1757 | normal->owner = drv->owner; |
| 1758 | normal->magic = TTY_DRIVER_MAGIC; |
| 1759 | normal->driver_name = drv->driver_name; |
| 1760 | normal->name = drv->dev_name; |
| 1761 | normal->major = drv->major; |
| 1762 | normal->minor_start = drv->minor; |
| 1763 | |
| 1764 | normal->num = MAX_MP_PORT ; |
| 1765 | |
| 1766 | normal->type = TTY_DRIVER_TYPE_SERIAL; |
| 1767 | normal->subtype = SERIAL_TYPE_NORMAL; |
| 1768 | normal->init_termios = tty_std_termios; |
| 1769 | normal->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; |
| 1770 | normal->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; |
| 1771 | normal->driver_state = drv; |
| 1772 | |
| 1773 | tty_set_operations(normal, &mp_ops); |
| 1774 | |
| 1775 | for (i = 0; i < drv->nr; i++) { |
| 1776 | struct sb_uart_state *state = drv->state + i; |
| 1777 | |
| 1778 | state->close_delay = 500; |
| 1779 | state->closing_wait = 30000; |
| 1780 | |
| 1781 | mutex_init(&state->mutex); |
| 1782 | } |
| 1783 | |
| 1784 | retval = tty_register_driver(normal); |
| 1785 | out: |
| 1786 | if (retval < 0) { |
| 1787 | printk("Register tty driver Fail!\n"); |
| 1788 | put_tty_driver(normal); |
| 1789 | kfree(drv->state); |
| 1790 | } |
| 1791 | |
| 1792 | return retval; |
| 1793 | } |
| 1794 | |
| 1795 | void mp_unregister_driver(struct uart_driver *drv) |
| 1796 | { |
| 1797 | struct tty_driver *normal = NULL; |
| 1798 | |
| 1799 | normal = drv->tty_driver; |
| 1800 | |
| 1801 | if (!normal) |
| 1802 | { |
| 1803 | return; |
| 1804 | } |
| 1805 | |
| 1806 | tty_unregister_driver(normal); |
| 1807 | put_tty_driver(normal); |
| 1808 | drv->tty_driver = NULL; |
| 1809 | |
| 1810 | |
| 1811 | if (drv->state) |
| 1812 | { |
| 1813 | kfree(drv->state); |
| 1814 | } |
| 1815 | |
| 1816 | } |
| 1817 | |
| 1818 | static int mp_add_one_port(struct uart_driver *drv, struct sb_uart_port *port) |
| 1819 | { |
| 1820 | struct sb_uart_state *state; |
| 1821 | int ret = 0; |
| 1822 | |
| 1823 | |
| 1824 | if (port->line >= drv->nr) |
| 1825 | return -EINVAL; |
| 1826 | |
| 1827 | state = drv->state + port->line; |
| 1828 | |
| 1829 | MP_MUTEX_LOCK(mp_mutex); |
| 1830 | if (state->port) { |
| 1831 | ret = -EINVAL; |
| 1832 | goto out; |
| 1833 | } |
| 1834 | |
| 1835 | state->port = port; |
| 1836 | |
| 1837 | spin_lock_init(&port->lock); |
| 1838 | port->cons = drv->cons; |
| 1839 | port->info = state->info; |
| 1840 | |
| 1841 | mp_configure_port(drv, state, port); |
| 1842 | |
| 1843 | tty_register_device(drv->tty_driver, port->line, port->dev); |
| 1844 | |
| 1845 | out: |
| 1846 | MP_MUTEX_UNLOCK(mp_mutex); |
| 1847 | |
| 1848 | |
| 1849 | return ret; |
| 1850 | } |
| 1851 | |
| 1852 | static int mp_remove_one_port(struct uart_driver *drv, struct sb_uart_port *port) |
| 1853 | { |
| 1854 | struct sb_uart_state *state = drv->state + port->line; |
| 1855 | |
| 1856 | if (state->port != port) |
| 1857 | printk(KERN_ALERT "Removing wrong port: %p != %p\n", |
| 1858 | state->port, port); |
| 1859 | |
| 1860 | MP_MUTEX_LOCK(mp_mutex); |
| 1861 | |
| 1862 | tty_unregister_device(drv->tty_driver, port->line); |
| 1863 | |
| 1864 | mp_unconfigure_port(drv, state); |
| 1865 | state->port = NULL; |
| 1866 | MP_MUTEX_UNLOCK(mp_mutex); |
| 1867 | |
| 1868 | return 0; |
| 1869 | } |
| 1870 | |
| 1871 | static void autoconfig(struct mp_port *mtpt, unsigned int probeflags) |
| 1872 | { |
| 1873 | unsigned char status1, scratch, scratch2, scratch3; |
| 1874 | unsigned char save_lcr, save_mcr; |
| 1875 | unsigned long flags; |
| 1876 | |
| 1877 | unsigned char u_type; |
| 1878 | unsigned char b_ret = 0; |
| 1879 | |
| 1880 | if (!mtpt->port.iobase && !mtpt->port.mapbase && !mtpt->port.membase) |
| 1881 | return; |
| 1882 | |
| 1883 | DEBUG_AUTOCONF("ttyMP%d: autoconf (0x%04x, 0x%p): ", |
| 1884 | mtpt->port.line, mtpt->port.iobase, mtpt->port.membase); |
| 1885 | |
| 1886 | spin_lock_irqsave(&mtpt->port.lock, flags); |
| 1887 | |
| 1888 | if (!(mtpt->port.flags & UPF_BUGGY_UART)) { |
| 1889 | scratch = serial_inp(mtpt, UART_IER); |
| 1890 | serial_outp(mtpt, UART_IER, 0); |
| 1891 | #ifdef __i386__ |
| 1892 | outb(0xff, 0x080); |
| 1893 | #endif |
| 1894 | scratch2 = serial_inp(mtpt, UART_IER) & 0x0f; |
| 1895 | serial_outp(mtpt, UART_IER, 0x0F); |
| 1896 | #ifdef __i386__ |
| 1897 | outb(0, 0x080); |
| 1898 | #endif |
| 1899 | scratch3 = serial_inp(mtpt, UART_IER) & 0x0F; |
| 1900 | serial_outp(mtpt, UART_IER, scratch); |
| 1901 | if (scratch2 != 0 || scratch3 != 0x0F) { |
| 1902 | DEBUG_AUTOCONF("IER test failed (%02x, %02x) ", |
| 1903 | scratch2, scratch3); |
| 1904 | goto out; |
| 1905 | } |
| 1906 | } |
| 1907 | |
| 1908 | save_mcr = serial_in(mtpt, UART_MCR); |
| 1909 | save_lcr = serial_in(mtpt, UART_LCR); |
| 1910 | |
| 1911 | if (!(mtpt->port.flags & UPF_SKIP_TEST)) { |
| 1912 | serial_outp(mtpt, UART_MCR, UART_MCR_LOOP | 0x0A); |
| 1913 | status1 = serial_inp(mtpt, UART_MSR) & 0xF0; |
| 1914 | serial_outp(mtpt, UART_MCR, save_mcr); |
| 1915 | if (status1 != 0x90) { |
| 1916 | DEBUG_AUTOCONF("LOOP test failed (%02x) ", |
| 1917 | status1); |
| 1918 | goto out; |
| 1919 | } |
| 1920 | } |
| 1921 | |
| 1922 | serial_outp(mtpt, UART_LCR, 0xBF); |
| 1923 | serial_outp(mtpt, UART_EFR, 0); |
| 1924 | serial_outp(mtpt, UART_LCR, 0); |
| 1925 | |
| 1926 | serial_outp(mtpt, UART_FCR, UART_FCR_ENABLE_FIFO); |
| 1927 | scratch = serial_in(mtpt, UART_IIR) >> 6; |
| 1928 | |
| 1929 | DEBUG_AUTOCONF("iir=%d ", scratch); |
| 1930 | if(mtpt->device->nr_ports >= 8) |
| 1931 | b_ret = read_option_register(mtpt,(MP_OPTR_DIR0 + ((mtpt->port.line)/8))); |
| 1932 | else |
| 1933 | b_ret = read_option_register(mtpt,MP_OPTR_DIR0); |
| 1934 | u_type = (b_ret & 0xf0) >> 4; |
| 1935 | if(mtpt->port.type == PORT_UNKNOWN ) |
| 1936 | { |
| 1937 | switch (u_type) |
| 1938 | { |
| 1939 | case DIR_UART_16C550: |
| 1940 | mtpt->port.type = PORT_16C55X; |
| 1941 | break; |
| 1942 | case DIR_UART_16C1050: |
| 1943 | mtpt->port.type = PORT_16C105X; |
| 1944 | break; |
| 1945 | case DIR_UART_16C1050A: |
| 1946 | if (mtpt->port.line < 2) |
| 1947 | { |
| 1948 | mtpt->port.type = PORT_16C105XA; |
| 1949 | } |
| 1950 | else |
| 1951 | { |
| 1952 | if (mtpt->device->device_id & 0x50) |
| 1953 | { |
| 1954 | mtpt->port.type = PORT_16C55X; |
| 1955 | } |
| 1956 | else |
| 1957 | { |
| 1958 | mtpt->port.type = PORT_16C105X; |
| 1959 | } |
| 1960 | } |
| 1961 | break; |
| 1962 | default: |
| 1963 | mtpt->port.type = PORT_UNKNOWN; |
| 1964 | break; |
| 1965 | } |
| 1966 | } |
| 1967 | |
| 1968 | if(mtpt->port.type == PORT_UNKNOWN ) |
| 1969 | { |
| 1970 | printk("unknow2\n"); |
| 1971 | switch (scratch) { |
| 1972 | case 0: |
| 1973 | case 1: |
| 1974 | mtpt->port.type = PORT_UNKNOWN; |
| 1975 | break; |
| 1976 | case 2: |
| 1977 | case 3: |
| 1978 | mtpt->port.type = PORT_16C55X; |
| 1979 | break; |
| 1980 | } |
| 1981 | } |
| 1982 | |
| 1983 | serial_outp(mtpt, UART_LCR, save_lcr); |
| 1984 | |
| 1985 | mtpt->port.fifosize = uart_config[mtpt->port.type].dfl_xmit_fifo_size; |
| 1986 | mtpt->capabilities = uart_config[mtpt->port.type].flags; |
| 1987 | |
| 1988 | if (mtpt->port.type == PORT_UNKNOWN) |
| 1989 | goto out; |
| 1990 | serial_outp(mtpt, UART_MCR, save_mcr); |
| 1991 | serial_outp(mtpt, UART_FCR, (UART_FCR_ENABLE_FIFO | |
| 1992 | UART_FCR_CLEAR_RCVR | |
| 1993 | UART_FCR_CLEAR_XMIT)); |
| 1994 | serial_outp(mtpt, UART_FCR, 0); |
| 1995 | (void)serial_in(mtpt, UART_RX); |
| 1996 | serial_outp(mtpt, UART_IER, 0); |
| 1997 | |
| 1998 | out: |
| 1999 | spin_unlock_irqrestore(&mtpt->port.lock, flags); |
| 2000 | DEBUG_AUTOCONF("type=%s\n", uart_config[mtpt->port.type].name); |
| 2001 | } |
| 2002 | |
| 2003 | static void autoconfig_irq(struct mp_port *mtpt) |
| 2004 | { |
| 2005 | unsigned char save_mcr, save_ier; |
| 2006 | unsigned long irqs; |
| 2007 | int irq; |
| 2008 | |
| 2009 | /* forget possible initially masked and pending IRQ */ |
| 2010 | probe_irq_off(probe_irq_on()); |
| 2011 | save_mcr = serial_inp(mtpt, UART_MCR); |
| 2012 | save_ier = serial_inp(mtpt, UART_IER); |
| 2013 | serial_outp(mtpt, UART_MCR, UART_MCR_OUT1 | UART_MCR_OUT2); |
| 2014 | |
| 2015 | irqs = probe_irq_on(); |
| 2016 | serial_outp(mtpt, UART_MCR, 0); |
| 2017 | serial_outp(mtpt, UART_MCR, |
| 2018 | UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2); |
| 2019 | |
| 2020 | serial_outp(mtpt, UART_IER, 0x0f); /* enable all intrs */ |
| 2021 | (void)serial_inp(mtpt, UART_LSR); |
| 2022 | (void)serial_inp(mtpt, UART_RX); |
| 2023 | (void)serial_inp(mtpt, UART_IIR); |
| 2024 | (void)serial_inp(mtpt, UART_MSR); |
| 2025 | serial_outp(mtpt, UART_TX, 0xFF); |
| 2026 | irq = probe_irq_off(irqs); |
| 2027 | |
| 2028 | serial_outp(mtpt, UART_MCR, save_mcr); |
| 2029 | serial_outp(mtpt, UART_IER, save_ier); |
| 2030 | |
| 2031 | mtpt->port.irq = (irq > 0) ? irq : 0; |
| 2032 | } |
| 2033 | |
| 2034 | static void multi_stop_tx(struct sb_uart_port *port) |
| 2035 | { |
| 2036 | struct mp_port *mtpt = (struct mp_port *)port; |
| 2037 | |
| 2038 | if (mtpt->ier & UART_IER_THRI) { |
| 2039 | mtpt->ier &= ~UART_IER_THRI; |
| 2040 | serial_out(mtpt, UART_IER, mtpt->ier); |
| 2041 | } |
| 2042 | |
| 2043 | tasklet_schedule(&port->info->tlet); |
| 2044 | } |
| 2045 | |
| 2046 | static void multi_start_tx(struct sb_uart_port *port) |
| 2047 | { |
| 2048 | struct mp_port *mtpt = (struct mp_port *)port; |
| 2049 | |
| 2050 | if (!(mtpt->ier & UART_IER_THRI)) { |
| 2051 | mtpt->ier |= UART_IER_THRI; |
| 2052 | serial_out(mtpt, UART_IER, mtpt->ier); |
| 2053 | } |
| 2054 | } |
| 2055 | |
| 2056 | static void multi_stop_rx(struct sb_uart_port *port) |
| 2057 | { |
| 2058 | struct mp_port *mtpt = (struct mp_port *)port; |
| 2059 | |
| 2060 | mtpt->ier &= ~UART_IER_RLSI; |
| 2061 | mtpt->port.read_status_mask &= ~UART_LSR_DR; |
| 2062 | serial_out(mtpt, UART_IER, mtpt->ier); |
| 2063 | } |
| 2064 | |
| 2065 | static void multi_enable_ms(struct sb_uart_port *port) |
| 2066 | { |
| 2067 | struct mp_port *mtpt = (struct mp_port *)port; |
| 2068 | |
| 2069 | mtpt->ier |= UART_IER_MSI; |
| 2070 | serial_out(mtpt, UART_IER, mtpt->ier); |
| 2071 | } |
| 2072 | |
| 2073 | |
| 2074 | static _INLINE_ void receive_chars(struct mp_port *mtpt, int *status ) |
| 2075 | { |
| 2076 | struct tty_struct *tty = mtpt->port.info->tty; |
| 2077 | unsigned char lsr = *status; |
| 2078 | int max_count = 256; |
| 2079 | unsigned char ch; |
| 2080 | char flag; |
| 2081 | |
| 2082 | //lsr &= mtpt->port.read_status_mask; |
| 2083 | |
| 2084 | do { |
| 2085 | if ((lsr & UART_LSR_PE) && (mtpt->port.mdmode & MDMODE_ENABLE)) |
| 2086 | { |
| 2087 | ch = serial_inp(mtpt, UART_RX); |
| 2088 | } |
| 2089 | else if (lsr & UART_LSR_SPECIAL) |
| 2090 | { |
| 2091 | flag = 0; |
| 2092 | ch = serial_inp(mtpt, UART_RX); |
| 2093 | |
| 2094 | if (lsr & UART_LSR_BI) |
| 2095 | { |
| 2096 | |
| 2097 | mtpt->port.icount.brk++; |
| 2098 | flag = TTY_BREAK; |
| 2099 | |
| 2100 | if (sb_uart_handle_break(&mtpt->port)) |
| 2101 | goto ignore_char; |
| 2102 | } |
| 2103 | if (lsr & UART_LSR_PE) |
| 2104 | { |
| 2105 | mtpt->port.icount.parity++; |
| 2106 | flag = TTY_PARITY; |
| 2107 | } |
| 2108 | if (lsr & UART_LSR_FE) |
| 2109 | { |
| 2110 | mtpt->port.icount.frame++; |
| 2111 | flag = TTY_FRAME; |
| 2112 | } |
| 2113 | if (lsr & UART_LSR_OE) |
| 2114 | { |
| 2115 | mtpt->port.icount.overrun++; |
| 2116 | flag = TTY_OVERRUN; |
| 2117 | } |
| 2118 | tty_insert_flip_char(tty, ch, flag); |
| 2119 | } |
| 2120 | else |
| 2121 | { |
| 2122 | ch = serial_inp(mtpt, UART_RX); |
| 2123 | tty_insert_flip_char(tty, ch, 0); |
| 2124 | } |
| 2125 | ignore_char: |
| 2126 | lsr = serial_inp(mtpt, UART_LSR); |
| 2127 | } while ((lsr & UART_LSR_DR) && (max_count-- > 0)); |
| 2128 | |
| 2129 | tty_flip_buffer_push(tty); |
| 2130 | } |
| 2131 | |
| 2132 | |
| 2133 | |
| 2134 | |
| 2135 | static _INLINE_ void transmit_chars(struct mp_port *mtpt) |
| 2136 | { |
| 2137 | struct circ_buf *xmit = &mtpt->port.info->xmit; |
| 2138 | int count; |
| 2139 | |
| 2140 | if (mtpt->port.x_char) { |
| 2141 | serial_outp(mtpt, UART_TX, mtpt->port.x_char); |
| 2142 | mtpt->port.icount.tx++; |
| 2143 | mtpt->port.x_char = 0; |
| 2144 | return; |
| 2145 | } |
| 2146 | if (uart_circ_empty(xmit) || uart_tx_stopped(&mtpt->port)) { |
| 2147 | multi_stop_tx(&mtpt->port); |
| 2148 | return; |
| 2149 | } |
| 2150 | |
| 2151 | count = uart_circ_chars_pending(xmit); |
| 2152 | |
| 2153 | if(count > mtpt->port.fifosize) |
| 2154 | { |
| 2155 | count = mtpt->port.fifosize; |
| 2156 | } |
| 2157 | |
| 2158 | printk("[%d] mdmode: %x\n", mtpt->port.line, mtpt->port.mdmode); |
| 2159 | do { |
| 2160 | #if 0 |
| 2161 | /* check multi-drop mode */ |
| 2162 | if ((mtpt->port.mdmode & (MDMODE_ENABLE | MDMODE_ADDR)) == (MDMODE_ENABLE | MDMODE_ADDR)) |
| 2163 | { |
| 2164 | printk("send address\n"); |
| 2165 | /* send multi-drop address */ |
| 2166 | serial_out(mtpt, UART_SCR, xmit->buf[xmit->tail]); |
| 2167 | } |
| 2168 | else |
| 2169 | #endif |
| 2170 | { |
| 2171 | serial_out(mtpt, UART_TX, xmit->buf[xmit->tail]); |
| 2172 | } |
| 2173 | xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); |
| 2174 | mtpt->port.icount.tx++; |
| 2175 | } while (--count > 0); |
| 2176 | } |
| 2177 | |
| 2178 | |
| 2179 | |
| 2180 | static _INLINE_ void check_modem_status(struct mp_port *mtpt) |
| 2181 | { |
| 2182 | int status; |
| 2183 | |
| 2184 | status = serial_in(mtpt, UART_MSR); |
| 2185 | |
| 2186 | if ((status & UART_MSR_ANY_DELTA) == 0) |
| 2187 | return; |
| 2188 | |
| 2189 | if (status & UART_MSR_TERI) |
| 2190 | mtpt->port.icount.rng++; |
| 2191 | if (status & UART_MSR_DDSR) |
| 2192 | mtpt->port.icount.dsr++; |
| 2193 | if (status & UART_MSR_DDCD) |
| 2194 | sb_uart_handle_dcd_change(&mtpt->port, status & UART_MSR_DCD); |
| 2195 | if (status & UART_MSR_DCTS) |
| 2196 | sb_uart_handle_cts_change(&mtpt->port, status & UART_MSR_CTS); |
| 2197 | |
| 2198 | wake_up_interruptible(&mtpt->port.info->delta_msr_wait); |
| 2199 | } |
| 2200 | |
| 2201 | static inline void multi_handle_port(struct mp_port *mtpt) |
| 2202 | { |
| 2203 | unsigned int status = serial_inp(mtpt, UART_LSR); |
| 2204 | |
| 2205 | //printk("lsr: %x\n", status); |
| 2206 | |
| 2207 | if ((status & UART_LSR_DR) || (status & UART_LSR_SPECIAL)) |
| 2208 | receive_chars(mtpt, &status); |
| 2209 | check_modem_status(mtpt); |
| 2210 | if (status & UART_LSR_THRE) |
| 2211 | { |
| 2212 | if ((mtpt->port.type == PORT_16C105X) |
| 2213 | || (mtpt->port.type == PORT_16C105XA)) |
| 2214 | transmit_chars(mtpt); |
| 2215 | else |
| 2216 | { |
| 2217 | if (mtpt->interface >= RS485NE) |
| 2218 | uart_set_mctrl(&mtpt->port, TIOCM_RTS); |
| 2219 | |
| 2220 | transmit_chars(mtpt); |
| 2221 | |
| 2222 | |
| 2223 | if (mtpt->interface >= RS485NE) |
| 2224 | { |
| 2225 | while((status=serial_in(mtpt,UART_LSR) &0x60)!=0x60); |
| 2226 | uart_clear_mctrl(&mtpt->port, TIOCM_RTS); |
| 2227 | } |
| 2228 | } |
| 2229 | } |
| 2230 | } |
| 2231 | |
| 2232 | |
| 2233 | |
| 2234 | static irqreturn_t multi_interrupt(int irq, void *dev_id) |
| 2235 | { |
| 2236 | struct irq_info *iinfo = dev_id; |
| 2237 | struct list_head *lhead, *end = NULL; |
| 2238 | int pass_counter = 0; |
| 2239 | |
| 2240 | |
| 2241 | spin_lock(&iinfo->lock); |
| 2242 | |
| 2243 | lhead = iinfo->head; |
| 2244 | do { |
| 2245 | struct mp_port *mtpt; |
| 2246 | unsigned int iir; |
| 2247 | |
| 2248 | mtpt = list_entry(lhead, struct mp_port, list); |
| 2249 | |
| 2250 | iir = serial_in(mtpt, UART_IIR); |
Masanari Iida | 6198312 | 2013-03-24 23:24:00 +0900 | [diff] [blame] | 2251 | printk("interrupt! port %d, iir 0x%x\n", mtpt->port.line, iir); //wlee |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 2252 | if (!(iir & UART_IIR_NO_INT)) |
| 2253 | { |
| 2254 | printk("interrupt handle\n"); |
| 2255 | spin_lock(&mtpt->port.lock); |
| 2256 | multi_handle_port(mtpt); |
| 2257 | spin_unlock(&mtpt->port.lock); |
| 2258 | |
| 2259 | end = NULL; |
| 2260 | } else if (end == NULL) |
| 2261 | end = lhead; |
| 2262 | |
| 2263 | lhead = lhead->next; |
| 2264 | if (lhead == iinfo->head && pass_counter++ > PASS_LIMIT) |
| 2265 | { |
| 2266 | printk(KERN_ERR "multi: too much work for " |
| 2267 | "irq%d\n", irq); |
| 2268 | printk( "multi: too much work for " |
| 2269 | "irq%d\n", irq); |
| 2270 | break; |
| 2271 | } |
| 2272 | } while (lhead != end); |
| 2273 | |
| 2274 | spin_unlock(&iinfo->lock); |
| 2275 | |
| 2276 | |
| 2277 | return IRQ_HANDLED; |
| 2278 | } |
| 2279 | |
| 2280 | static void serial_do_unlink(struct irq_info *i, struct mp_port *mtpt) |
| 2281 | { |
| 2282 | spin_lock_irq(&i->lock); |
| 2283 | |
| 2284 | if (!list_empty(i->head)) { |
| 2285 | if (i->head == &mtpt->list) |
| 2286 | i->head = i->head->next; |
| 2287 | list_del(&mtpt->list); |
| 2288 | } else { |
| 2289 | i->head = NULL; |
| 2290 | } |
| 2291 | |
| 2292 | spin_unlock_irq(&i->lock); |
| 2293 | } |
| 2294 | |
| 2295 | static int serial_link_irq_chain(struct mp_port *mtpt) |
| 2296 | { |
| 2297 | struct irq_info *i = irq_lists + mtpt->port.irq; |
| 2298 | int ret, irq_flags = mtpt->port.flags & UPF_SHARE_IRQ ? IRQF_SHARED : 0; |
| 2299 | spin_lock_irq(&i->lock); |
| 2300 | |
| 2301 | if (i->head) { |
| 2302 | list_add(&mtpt->list, i->head); |
| 2303 | spin_unlock_irq(&i->lock); |
| 2304 | |
| 2305 | ret = 0; |
| 2306 | } else { |
| 2307 | INIT_LIST_HEAD(&mtpt->list); |
| 2308 | i->head = &mtpt->list; |
| 2309 | spin_unlock_irq(&i->lock); |
| 2310 | |
| 2311 | ret = request_irq(mtpt->port.irq, multi_interrupt, |
| 2312 | irq_flags, "serial", i); |
| 2313 | if (ret < 0) |
| 2314 | serial_do_unlink(i, mtpt); |
| 2315 | } |
| 2316 | |
| 2317 | return ret; |
| 2318 | } |
| 2319 | |
| 2320 | |
| 2321 | |
| 2322 | |
| 2323 | static void serial_unlink_irq_chain(struct mp_port *mtpt) |
| 2324 | { |
| 2325 | struct irq_info *i = irq_lists + mtpt->port.irq; |
| 2326 | |
| 2327 | if (list_empty(i->head)) |
| 2328 | { |
| 2329 | free_irq(mtpt->port.irq, i); |
| 2330 | } |
| 2331 | serial_do_unlink(i, mtpt); |
| 2332 | } |
| 2333 | |
| 2334 | static void multi_timeout(unsigned long data) |
| 2335 | { |
| 2336 | struct mp_port *mtpt = (struct mp_port *)data; |
| 2337 | |
| 2338 | |
| 2339 | spin_lock(&mtpt->port.lock); |
| 2340 | multi_handle_port(mtpt); |
| 2341 | spin_unlock(&mtpt->port.lock); |
| 2342 | |
| 2343 | mod_timer(&mtpt->timer, jiffies+1 ); |
| 2344 | } |
| 2345 | |
| 2346 | static unsigned int multi_tx_empty(struct sb_uart_port *port) |
| 2347 | { |
| 2348 | struct mp_port *mtpt = (struct mp_port *)port; |
| 2349 | unsigned long flags; |
| 2350 | unsigned int ret; |
| 2351 | |
| 2352 | spin_lock_irqsave(&mtpt->port.lock, flags); |
| 2353 | ret = serial_in(mtpt, UART_LSR) & UART_LSR_TEMT ? TIOCSER_TEMT : 0; |
| 2354 | spin_unlock_irqrestore(&mtpt->port.lock, flags); |
| 2355 | |
| 2356 | return ret; |
| 2357 | } |
| 2358 | |
| 2359 | |
| 2360 | static unsigned int multi_get_mctrl(struct sb_uart_port *port) |
| 2361 | { |
| 2362 | struct mp_port *mtpt = (struct mp_port *)port; |
| 2363 | unsigned char status; |
| 2364 | unsigned int ret; |
| 2365 | |
| 2366 | status = serial_in(mtpt, UART_MSR); |
| 2367 | |
| 2368 | ret = 0; |
| 2369 | if (status & UART_MSR_DCD) |
| 2370 | ret |= TIOCM_CAR; |
| 2371 | if (status & UART_MSR_RI) |
| 2372 | ret |= TIOCM_RNG; |
| 2373 | if (status & UART_MSR_DSR) |
| 2374 | ret |= TIOCM_DSR; |
| 2375 | if (status & UART_MSR_CTS) |
| 2376 | ret |= TIOCM_CTS; |
| 2377 | return ret; |
| 2378 | } |
| 2379 | |
| 2380 | static void multi_set_mctrl(struct sb_uart_port *port, unsigned int mctrl) |
| 2381 | { |
| 2382 | struct mp_port *mtpt = (struct mp_port *)port; |
| 2383 | unsigned char mcr = 0; |
| 2384 | |
| 2385 | mctrl &= 0xff; |
| 2386 | |
| 2387 | if (mctrl & TIOCM_RTS) |
| 2388 | mcr |= UART_MCR_RTS; |
| 2389 | if (mctrl & TIOCM_DTR) |
| 2390 | mcr |= UART_MCR_DTR; |
| 2391 | if (mctrl & TIOCM_OUT1) |
| 2392 | mcr |= UART_MCR_OUT1; |
| 2393 | if (mctrl & TIOCM_OUT2) |
| 2394 | mcr |= UART_MCR_OUT2; |
| 2395 | if (mctrl & TIOCM_LOOP) |
| 2396 | mcr |= UART_MCR_LOOP; |
| 2397 | |
| 2398 | |
| 2399 | serial_out(mtpt, UART_MCR, mcr); |
| 2400 | } |
| 2401 | |
| 2402 | |
| 2403 | static void multi_break_ctl(struct sb_uart_port *port, int break_state) |
| 2404 | { |
| 2405 | struct mp_port *mtpt = (struct mp_port *)port; |
| 2406 | unsigned long flags; |
| 2407 | |
| 2408 | spin_lock_irqsave(&mtpt->port.lock, flags); |
| 2409 | if (break_state == -1) |
| 2410 | mtpt->lcr |= UART_LCR_SBC; |
| 2411 | else |
| 2412 | mtpt->lcr &= ~UART_LCR_SBC; |
| 2413 | serial_out(mtpt, UART_LCR, mtpt->lcr); |
| 2414 | spin_unlock_irqrestore(&mtpt->port.lock, flags); |
| 2415 | } |
| 2416 | |
| 2417 | |
| 2418 | |
| 2419 | static int multi_startup(struct sb_uart_port *port) |
| 2420 | { |
| 2421 | struct mp_port *mtpt = (struct mp_port *)port; |
| 2422 | unsigned long flags; |
| 2423 | int retval; |
| 2424 | |
| 2425 | mtpt->capabilities = uart_config[mtpt->port.type].flags; |
| 2426 | mtpt->mcr = 0; |
| 2427 | |
| 2428 | if (mtpt->capabilities & UART_CLEAR_FIFO) { |
| 2429 | serial_outp(mtpt, UART_FCR, UART_FCR_ENABLE_FIFO); |
| 2430 | serial_outp(mtpt, UART_FCR, UART_FCR_ENABLE_FIFO | |
| 2431 | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT); |
| 2432 | serial_outp(mtpt, UART_FCR, 0); |
| 2433 | } |
| 2434 | |
| 2435 | (void) serial_inp(mtpt, UART_LSR); |
| 2436 | (void) serial_inp(mtpt, UART_RX); |
| 2437 | (void) serial_inp(mtpt, UART_IIR); |
| 2438 | (void) serial_inp(mtpt, UART_MSR); |
| 2439 | //test-wlee 9-bit disable |
| 2440 | serial_outp(mtpt, UART_MSR, 0); |
| 2441 | |
| 2442 | |
| 2443 | if (!(mtpt->port.flags & UPF_BUGGY_UART) && |
| 2444 | (serial_inp(mtpt, UART_LSR) == 0xff)) { |
| 2445 | printk("ttyS%d: LSR safety check engaged!\n", mtpt->port.line); |
| 2446 | //return -ENODEV; |
| 2447 | } |
| 2448 | |
| 2449 | if ((!is_real_interrupt(mtpt->port.irq)) || (mtpt->poll_type==TYPE_POLL)) { |
| 2450 | unsigned int timeout = mtpt->port.timeout; |
| 2451 | |
| 2452 | timeout = timeout > 6 ? (timeout / 2 - 2) : 1; |
| 2453 | |
| 2454 | mtpt->timer.data = (unsigned long)mtpt; |
| 2455 | mod_timer(&mtpt->timer, jiffies + timeout); |
| 2456 | } |
| 2457 | else |
| 2458 | { |
| 2459 | retval = serial_link_irq_chain(mtpt); |
| 2460 | if (retval) |
| 2461 | return retval; |
| 2462 | } |
| 2463 | |
| 2464 | serial_outp(mtpt, UART_LCR, UART_LCR_WLEN8); |
| 2465 | |
| 2466 | spin_lock_irqsave(&mtpt->port.lock, flags); |
| 2467 | if ((is_real_interrupt(mtpt->port.irq))||(mtpt->poll_type==TYPE_INTERRUPT)) |
| 2468 | mtpt->port.mctrl |= TIOCM_OUT2; |
| 2469 | |
| 2470 | multi_set_mctrl(&mtpt->port, mtpt->port.mctrl); |
| 2471 | spin_unlock_irqrestore(&mtpt->port.lock, flags); |
| 2472 | |
| 2473 | |
| 2474 | mtpt->ier = UART_IER_RLSI | UART_IER_RDI; |
| 2475 | serial_outp(mtpt, UART_IER, mtpt->ier); |
| 2476 | |
| 2477 | (void) serial_inp(mtpt, UART_LSR); |
| 2478 | (void) serial_inp(mtpt, UART_RX); |
| 2479 | (void) serial_inp(mtpt, UART_IIR); |
| 2480 | (void) serial_inp(mtpt, UART_MSR); |
| 2481 | |
| 2482 | return 0; |
| 2483 | } |
| 2484 | |
| 2485 | |
| 2486 | |
| 2487 | static void multi_shutdown(struct sb_uart_port *port) |
| 2488 | { |
| 2489 | struct mp_port *mtpt = (struct mp_port *)port; |
| 2490 | unsigned long flags; |
| 2491 | |
| 2492 | |
| 2493 | mtpt->ier = 0; |
| 2494 | serial_outp(mtpt, UART_IER, 0); |
| 2495 | |
| 2496 | spin_lock_irqsave(&mtpt->port.lock, flags); |
| 2497 | mtpt->port.mctrl &= ~TIOCM_OUT2; |
| 2498 | |
| 2499 | multi_set_mctrl(&mtpt->port, mtpt->port.mctrl); |
| 2500 | spin_unlock_irqrestore(&mtpt->port.lock, flags); |
| 2501 | |
| 2502 | serial_out(mtpt, UART_LCR, serial_inp(mtpt, UART_LCR) & ~UART_LCR_SBC); |
| 2503 | serial_outp(mtpt, UART_FCR, UART_FCR_ENABLE_FIFO | |
| 2504 | UART_FCR_CLEAR_RCVR | |
| 2505 | UART_FCR_CLEAR_XMIT); |
| 2506 | serial_outp(mtpt, UART_FCR, 0); |
| 2507 | |
| 2508 | |
| 2509 | (void) serial_in(mtpt, UART_RX); |
| 2510 | |
| 2511 | if ((!is_real_interrupt(mtpt->port.irq))||(mtpt->poll_type==TYPE_POLL)) |
| 2512 | { |
| 2513 | del_timer_sync(&mtpt->timer); |
| 2514 | } |
| 2515 | else |
| 2516 | { |
| 2517 | serial_unlink_irq_chain(mtpt); |
| 2518 | } |
| 2519 | } |
| 2520 | |
| 2521 | |
| 2522 | |
| 2523 | static unsigned int multi_get_divisor(struct sb_uart_port *port, unsigned int baud) |
| 2524 | { |
| 2525 | unsigned int quot; |
| 2526 | |
| 2527 | if ((port->flags & UPF_MAGIC_MULTIPLIER) && |
| 2528 | baud == (port->uartclk/4)) |
| 2529 | quot = 0x8001; |
| 2530 | else if ((port->flags & UPF_MAGIC_MULTIPLIER) && |
| 2531 | baud == (port->uartclk/8)) |
| 2532 | quot = 0x8002; |
| 2533 | else |
| 2534 | quot = sb_uart_get_divisor(port, baud); |
| 2535 | |
| 2536 | return quot; |
| 2537 | } |
| 2538 | |
| 2539 | |
| 2540 | |
| 2541 | |
| 2542 | static void multi_set_termios(struct sb_uart_port *port, struct MP_TERMIOS *termios, struct MP_TERMIOS *old) |
| 2543 | { |
| 2544 | struct mp_port *mtpt = (struct mp_port *)port; |
| 2545 | unsigned char cval, fcr = 0; |
| 2546 | unsigned long flags; |
| 2547 | unsigned int baud, quot; |
| 2548 | |
| 2549 | switch (termios->c_cflag & CSIZE) { |
| 2550 | case CS5: |
| 2551 | cval = 0x00; |
| 2552 | break; |
| 2553 | case CS6: |
| 2554 | cval = 0x01; |
| 2555 | break; |
| 2556 | case CS7: |
| 2557 | cval = 0x02; |
| 2558 | break; |
| 2559 | default: |
| 2560 | case CS8: |
| 2561 | cval = 0x03; |
| 2562 | break; |
| 2563 | } |
| 2564 | |
| 2565 | if (termios->c_cflag & CSTOPB) |
| 2566 | cval |= 0x04; |
| 2567 | if (termios->c_cflag & PARENB) |
| 2568 | cval |= UART_LCR_PARITY; |
| 2569 | if (!(termios->c_cflag & PARODD)) |
| 2570 | cval |= UART_LCR_EPAR; |
| 2571 | |
| 2572 | #ifdef CMSPAR |
| 2573 | if (termios->c_cflag & CMSPAR) |
| 2574 | cval |= UART_LCR_SPAR; |
| 2575 | #endif |
| 2576 | |
| 2577 | baud = sb_uart_get_baud_rate(port, termios, old, 0, port->uartclk/16); |
| 2578 | quot = multi_get_divisor(port, baud); |
| 2579 | |
| 2580 | if (mtpt->capabilities & UART_USE_FIFO) { |
| 2581 | //if (baud < 2400) |
| 2582 | // fcr = UART_FCR_ENABLE_FIFO | UART_FCR_TRIGGER_1; |
| 2583 | //else |
| 2584 | // fcr = UART_FCR_ENABLE_FIFO | UART_FCR_TRIGGER_8; |
| 2585 | |
| 2586 | // fcr = UART_FCR_ENABLE_FIFO | 0x90; |
| 2587 | fcr = fcr_arr[mtpt->port.line]; |
| 2588 | } |
| 2589 | |
| 2590 | spin_lock_irqsave(&mtpt->port.lock, flags); |
| 2591 | |
| 2592 | sb_uart_update_timeout(port, termios->c_cflag, baud); |
| 2593 | |
| 2594 | mtpt->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR; |
| 2595 | if (termios->c_iflag & INPCK) |
| 2596 | mtpt->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE; |
| 2597 | if (termios->c_iflag & (BRKINT | PARMRK)) |
| 2598 | mtpt->port.read_status_mask |= UART_LSR_BI; |
| 2599 | |
| 2600 | mtpt->port.ignore_status_mask = 0; |
| 2601 | if (termios->c_iflag & IGNPAR) |
| 2602 | mtpt->port.ignore_status_mask |= UART_LSR_PE | UART_LSR_FE; |
| 2603 | if (termios->c_iflag & IGNBRK) { |
| 2604 | mtpt->port.ignore_status_mask |= UART_LSR_BI; |
| 2605 | if (termios->c_iflag & IGNPAR) |
| 2606 | mtpt->port.ignore_status_mask |= UART_LSR_OE; |
| 2607 | } |
| 2608 | |
| 2609 | if ((termios->c_cflag & CREAD) == 0) |
| 2610 | mtpt->port.ignore_status_mask |= UART_LSR_DR; |
| 2611 | |
| 2612 | mtpt->ier &= ~UART_IER_MSI; |
| 2613 | if (UART_ENABLE_MS(&mtpt->port, termios->c_cflag)) |
| 2614 | mtpt->ier |= UART_IER_MSI; |
| 2615 | |
| 2616 | serial_out(mtpt, UART_IER, mtpt->ier); |
| 2617 | |
| 2618 | if (mtpt->capabilities & UART_STARTECH) { |
| 2619 | serial_outp(mtpt, UART_LCR, 0xBF); |
| 2620 | serial_outp(mtpt, UART_EFR, |
| 2621 | termios->c_cflag & CRTSCTS ? UART_EFR_CTS :0); |
| 2622 | } |
| 2623 | |
| 2624 | serial_outp(mtpt, UART_LCR, cval | UART_LCR_DLAB);/* set DLAB */ |
| 2625 | |
| 2626 | serial_outp(mtpt, UART_DLL, quot & 0xff); /* LS of divisor */ |
| 2627 | serial_outp(mtpt, UART_DLM, quot >> 8); /* MS of divisor */ |
| 2628 | |
| 2629 | serial_outp(mtpt, UART_LCR, cval); /* reset DLAB */ |
| 2630 | mtpt->lcr = cval; /* Save LCR */ |
| 2631 | |
| 2632 | if (fcr & UART_FCR_ENABLE_FIFO) { |
| 2633 | /* emulated UARTs (Lucent Venus 167x) need two steps */ |
| 2634 | serial_outp(mtpt, UART_FCR, UART_FCR_ENABLE_FIFO); |
| 2635 | } |
| 2636 | |
| 2637 | serial_outp(mtpt, UART_FCR, fcr); /* set fcr */ |
| 2638 | |
| 2639 | |
| 2640 | if ((mtpt->port.type == PORT_16C105X) |
| 2641 | || (mtpt->port.type == PORT_16C105XA)) |
| 2642 | { |
| 2643 | if(deep[mtpt->port.line]!=0) |
| 2644 | set_deep_fifo(port, ENABLE); |
| 2645 | |
| 2646 | if (mtpt->interface != RS232) |
| 2647 | set_auto_rts(port,mtpt->interface); |
| 2648 | |
| 2649 | } |
| 2650 | else |
| 2651 | { |
| 2652 | if (mtpt->interface >= RS485NE) |
| 2653 | { |
| 2654 | uart_clear_mctrl(&mtpt->port, TIOCM_RTS); |
| 2655 | } |
| 2656 | } |
| 2657 | |
| 2658 | if(mtpt->device->device_id == PCI_DEVICE_ID_MP4M) |
| 2659 | { |
| 2660 | SendATCommand(mtpt); |
| 2661 | printk("SendATCommand\n"); |
| 2662 | } |
| 2663 | multi_set_mctrl(&mtpt->port, mtpt->port.mctrl); |
| 2664 | spin_unlock_irqrestore(&mtpt->port.lock, flags); |
| 2665 | } |
| 2666 | |
| 2667 | static void multi_pm(struct sb_uart_port *port, unsigned int state, unsigned int oldstate) |
| 2668 | { |
| 2669 | struct mp_port *mtpt = (struct mp_port *)port; |
| 2670 | if (state) { |
| 2671 | if (mtpt->capabilities & UART_STARTECH) { |
| 2672 | serial_outp(mtpt, UART_LCR, 0xBF); |
| 2673 | serial_outp(mtpt, UART_EFR, UART_EFR_ECB); |
| 2674 | serial_outp(mtpt, UART_LCR, 0); |
| 2675 | serial_outp(mtpt, UART_IER, UART_IERX_SLEEP); |
| 2676 | serial_outp(mtpt, UART_LCR, 0xBF); |
| 2677 | serial_outp(mtpt, UART_EFR, 0); |
| 2678 | serial_outp(mtpt, UART_LCR, 0); |
| 2679 | } |
| 2680 | |
| 2681 | if (mtpt->pm) |
| 2682 | mtpt->pm(port, state, oldstate); |
| 2683 | } |
| 2684 | else |
| 2685 | { |
| 2686 | if (mtpt->capabilities & UART_STARTECH) { |
| 2687 | serial_outp(mtpt, UART_LCR, 0xBF); |
| 2688 | serial_outp(mtpt, UART_EFR, UART_EFR_ECB); |
| 2689 | serial_outp(mtpt, UART_LCR, 0); |
| 2690 | serial_outp(mtpt, UART_IER, 0); |
| 2691 | serial_outp(mtpt, UART_LCR, 0xBF); |
| 2692 | serial_outp(mtpt, UART_EFR, 0); |
| 2693 | serial_outp(mtpt, UART_LCR, 0); |
| 2694 | } |
| 2695 | |
| 2696 | if (mtpt->pm) |
| 2697 | mtpt->pm(port, state, oldstate); |
| 2698 | } |
| 2699 | } |
| 2700 | |
| 2701 | static void multi_release_std_resource(struct mp_port *mtpt) |
| 2702 | { |
| 2703 | unsigned int size = 8 << mtpt->port.regshift; |
| 2704 | |
| 2705 | switch (mtpt->port.iotype) { |
| 2706 | case UPIO_MEM: |
| 2707 | if (!mtpt->port.mapbase) |
| 2708 | break; |
| 2709 | |
| 2710 | if (mtpt->port.flags & UPF_IOREMAP) { |
| 2711 | iounmap(mtpt->port.membase); |
| 2712 | mtpt->port.membase = NULL; |
| 2713 | } |
| 2714 | |
| 2715 | release_mem_region(mtpt->port.mapbase, size); |
| 2716 | break; |
| 2717 | |
| 2718 | case UPIO_HUB6: |
| 2719 | case UPIO_PORT: |
| 2720 | release_region(mtpt->port.iobase,size); |
| 2721 | break; |
| 2722 | } |
| 2723 | } |
| 2724 | |
| 2725 | static void multi_release_port(struct sb_uart_port *port) |
| 2726 | { |
| 2727 | } |
| 2728 | |
| 2729 | static int multi_request_port(struct sb_uart_port *port) |
| 2730 | { |
| 2731 | return 0; |
| 2732 | } |
| 2733 | |
| 2734 | static void multi_config_port(struct sb_uart_port *port, int flags) |
| 2735 | { |
| 2736 | struct mp_port *mtpt = (struct mp_port *)port; |
| 2737 | int probeflags = PROBE_ANY; |
| 2738 | |
| 2739 | if (flags & UART_CONFIG_TYPE) |
| 2740 | autoconfig(mtpt, probeflags); |
| 2741 | if (mtpt->port.type != PORT_UNKNOWN && flags & UART_CONFIG_IRQ) |
| 2742 | autoconfig_irq(mtpt); |
| 2743 | |
| 2744 | if (mtpt->port.type == PORT_UNKNOWN) |
| 2745 | multi_release_std_resource(mtpt); |
| 2746 | } |
| 2747 | |
| 2748 | static int multi_verify_port(struct sb_uart_port *port, struct serial_struct *ser) |
| 2749 | { |
| 2750 | if (ser->irq >= NR_IRQS || ser->irq < 0 || |
| 2751 | ser->baud_base < 9600 || ser->type < PORT_UNKNOWN || |
| 2752 | ser->type == PORT_STARTECH) |
| 2753 | return -EINVAL; |
| 2754 | return 0; |
| 2755 | } |
| 2756 | |
Lidza Louina | 6f7f312 | 2013-05-10 11:05:37 -0400 | [diff] [blame^] | 2757 | static const char *multi_type(struct sb_uart_port *port) |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 2758 | { |
| 2759 | int type = port->type; |
| 2760 | |
| 2761 | if (type >= ARRAY_SIZE(uart_config)) |
| 2762 | type = 0; |
| 2763 | return uart_config[type].name; |
| 2764 | } |
| 2765 | |
| 2766 | static struct sb_uart_ops multi_pops = { |
| 2767 | .tx_empty = multi_tx_empty, |
| 2768 | .set_mctrl = multi_set_mctrl, |
| 2769 | .get_mctrl = multi_get_mctrl, |
| 2770 | .stop_tx = multi_stop_tx, |
| 2771 | .start_tx = multi_start_tx, |
| 2772 | .stop_rx = multi_stop_rx, |
| 2773 | .enable_ms = multi_enable_ms, |
| 2774 | .break_ctl = multi_break_ctl, |
| 2775 | .startup = multi_startup, |
| 2776 | .shutdown = multi_shutdown, |
| 2777 | .set_termios = multi_set_termios, |
| 2778 | .pm = multi_pm, |
| 2779 | .type = multi_type, |
| 2780 | .release_port = multi_release_port, |
| 2781 | .request_port = multi_request_port, |
| 2782 | .config_port = multi_config_port, |
| 2783 | .verify_port = multi_verify_port, |
| 2784 | }; |
| 2785 | |
| 2786 | static struct uart_driver multi_reg = { |
| 2787 | .owner = THIS_MODULE, |
| 2788 | .driver_name = "goldel_tulip", |
| 2789 | .dev_name = "ttyMP", |
| 2790 | .major = SB_TTY_MP_MAJOR, |
| 2791 | .minor = 0, |
| 2792 | .nr = MAX_MP_PORT, |
| 2793 | .cons = NULL, |
| 2794 | }; |
| 2795 | |
| 2796 | static void __init multi_init_ports(void) |
| 2797 | { |
| 2798 | struct mp_port *mtpt; |
| 2799 | static int first = 1; |
| 2800 | int i,j,k; |
| 2801 | unsigned char osc; |
| 2802 | unsigned char b_ret = 0; |
Lidza Louina | 6f7f312 | 2013-05-10 11:05:37 -0400 | [diff] [blame^] | 2803 | static struct mp_device_t *sbdev; |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 2804 | |
| 2805 | if (!first) |
| 2806 | return; |
| 2807 | first = 0; |
| 2808 | |
| 2809 | mtpt = multi_ports; |
| 2810 | |
| 2811 | for (k=0;k<NR_BOARD;k++) |
| 2812 | { |
| 2813 | sbdev = &mp_devs[k]; |
| 2814 | |
| 2815 | for (i = 0; i < sbdev->nr_ports; i++, mtpt++) |
| 2816 | { |
| 2817 | mtpt->device = sbdev; |
| 2818 | mtpt->port.iobase = sbdev->uart_access_addr + 8*i; |
| 2819 | mtpt->port.irq = sbdev->irq; |
| 2820 | if ( ((sbdev->device_id == PCI_DEVICE_ID_MP4)&&(sbdev->revision==0x91))) |
| 2821 | mtpt->interface_config_addr = sbdev->option_reg_addr + 0x08 + i; |
| 2822 | else if (sbdev->revision == 0xc0) |
| 2823 | mtpt->interface_config_addr = sbdev->option_reg_addr + 0x08 + (i & 0x1); |
| 2824 | else |
| 2825 | mtpt->interface_config_addr = sbdev->option_reg_addr + 0x08 + i/8; |
| 2826 | |
| 2827 | mtpt->option_base_addr = sbdev->option_reg_addr; |
| 2828 | |
| 2829 | mtpt->poll_type = sbdev->poll_type; |
| 2830 | |
| 2831 | mtpt->port.uartclk = BASE_BAUD * 16; |
| 2832 | |
Masanari Iida | 6198312 | 2013-03-24 23:24:00 +0900 | [diff] [blame] | 2833 | /* get input clock information */ |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 2834 | osc = inb(sbdev->option_reg_addr + MP_OPTR_DIR0 + i/8) & 0x0F; |
| 2835 | if (osc==0x0f) |
| 2836 | osc = 0; |
| 2837 | for(j=0;j<osc;j++) |
| 2838 | mtpt->port.uartclk *= 2; |
| 2839 | mtpt->port.flags |= STD_COM_FLAGS | UPF_SHARE_IRQ ; |
| 2840 | mtpt->port.iotype = UPIO_PORT; |
| 2841 | mtpt->port.ops = &multi_pops; |
| 2842 | |
| 2843 | if (sbdev->revision == 0xc0) |
| 2844 | { |
| 2845 | /* for SB16C1053APCI */ |
| 2846 | b_ret = sb1053a_get_interface(mtpt, i); |
| 2847 | } |
| 2848 | else |
| 2849 | { |
| 2850 | b_ret = read_option_register(mtpt,(MP_OPTR_IIR0 + i/8)); |
| 2851 | printk("IIR_RET = %x\n",b_ret); |
| 2852 | } |
| 2853 | |
Dan Carpenter | c803dd4 | 2013-01-09 10:12:14 +0300 | [diff] [blame] | 2854 | /* default to RS232 */ |
| 2855 | mtpt->interface = RS232; |
| 2856 | if (IIR_RS422 == (b_ret & IIR_TYPE_MASK)) |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 2857 | mtpt->interface = RS422PTP; |
Dan Carpenter | c803dd4 | 2013-01-09 10:12:14 +0300 | [diff] [blame] | 2858 | if (IIR_RS485 == (b_ret & IIR_TYPE_MASK)) |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 2859 | mtpt->interface = RS485NE; |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 2860 | } |
| 2861 | } |
| 2862 | } |
| 2863 | |
| 2864 | static void __init multi_register_ports(struct uart_driver *drv) |
| 2865 | { |
| 2866 | int i; |
| 2867 | |
| 2868 | multi_init_ports(); |
| 2869 | |
| 2870 | for (i = 0; i < NR_PORTS; i++) { |
| 2871 | struct mp_port *mtpt = &multi_ports[i]; |
| 2872 | |
| 2873 | mtpt->port.line = i; |
| 2874 | mtpt->port.ops = &multi_pops; |
| 2875 | init_timer(&mtpt->timer); |
| 2876 | mtpt->timer.function = multi_timeout; |
| 2877 | mp_add_one_port(drv, &mtpt->port); |
| 2878 | } |
| 2879 | } |
| 2880 | |
| 2881 | /** |
| 2882 | * pci_remap_base - remap BAR value of pci device |
| 2883 | * |
| 2884 | * PARAMETERS |
| 2885 | * pcidev - pci_dev structure address |
| 2886 | * offset - BAR offset PCI_BASE_ADDRESS_0 ~ PCI_BASE_ADDRESS_4 |
| 2887 | * address - address to be changed BAR value |
| 2888 | * size - size of address space |
| 2889 | * |
| 2890 | * RETURNS |
| 2891 | * If this function performs successful, it returns 0. Otherwise, It returns -1. |
| 2892 | */ |
| 2893 | static int pci_remap_base(struct pci_dev *pcidev, unsigned int offset, |
| 2894 | unsigned int address, unsigned int size) |
| 2895 | { |
| 2896 | #if 0 |
| 2897 | struct resource *root; |
| 2898 | unsigned index = (offset - 0x10) >> 2; |
| 2899 | #endif |
| 2900 | |
| 2901 | pci_write_config_dword(pcidev, offset, address); |
| 2902 | #if 0 |
| 2903 | root = pcidev->resource[index].parent; |
| 2904 | release_resource(&pcidev->resource[index]); |
| 2905 | address &= ~0x1; |
| 2906 | pcidev->resource[index].start = address; |
| 2907 | pcidev->resource[index].end = address + size - 1; |
| 2908 | |
| 2909 | if (request_resource(root, &pcidev->resource[index]) != NULL) |
| 2910 | { |
| 2911 | printk(KERN_ERR "pci remap conflict!! 0x%x\n", address); |
| 2912 | return (-1); |
| 2913 | } |
| 2914 | #endif |
| 2915 | |
| 2916 | return (0); |
| 2917 | } |
| 2918 | |
| 2919 | static int init_mp_dev(struct pci_dev *pcidev, mppcibrd_t brd) |
| 2920 | { |
Lidza Louina | 6f7f312 | 2013-05-10 11:05:37 -0400 | [diff] [blame^] | 2921 | static struct mp_device_t *sbdev = mp_devs; |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 2922 | unsigned long addr = 0; |
| 2923 | int j; |
Lidza Louina | 6f7f312 | 2013-05-10 11:05:37 -0400 | [diff] [blame^] | 2924 | struct resource *ret = NULL; |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 2925 | |
| 2926 | sbdev->device_id = brd.device_id; |
| 2927 | pci_read_config_byte(pcidev, PCI_CLASS_REVISION, &(sbdev->revision)); |
| 2928 | sbdev->name = brd.name; |
| 2929 | sbdev->uart_access_addr = pcidev->resource[0].start & PCI_BASE_ADDRESS_IO_MASK; |
| 2930 | |
| 2931 | /* check revision. The SB16C1053APCI's option i/o address is BAR4 */ |
| 2932 | if (sbdev->revision == 0xc0) |
| 2933 | { |
| 2934 | /* SB16C1053APCI */ |
| 2935 | sbdev->option_reg_addr = pcidev->resource[4].start & PCI_BASE_ADDRESS_IO_MASK; |
| 2936 | } |
| 2937 | else |
| 2938 | { |
| 2939 | sbdev->option_reg_addr = pcidev->resource[1].start & PCI_BASE_ADDRESS_IO_MASK; |
| 2940 | } |
| 2941 | #if 1 |
| 2942 | if (sbdev->revision == 0xc0) |
| 2943 | { |
| 2944 | outb(0x00, sbdev->option_reg_addr + MP_OPTR_GPOCR); |
| 2945 | inb(sbdev->option_reg_addr + MP_OPTR_GPOCR); |
| 2946 | outb(0x83, sbdev->option_reg_addr + MP_OPTR_GPOCR); |
| 2947 | } |
| 2948 | #endif |
| 2949 | |
| 2950 | sbdev->irq = pcidev->irq; |
| 2951 | |
| 2952 | if ((brd.device_id & 0x0800) || !(brd.device_id &0xff00)) |
| 2953 | { |
| 2954 | sbdev->poll_type = TYPE_INTERRUPT; |
| 2955 | } |
| 2956 | else |
| 2957 | { |
| 2958 | sbdev->poll_type = TYPE_POLL; |
| 2959 | } |
| 2960 | |
| 2961 | /* codes which is specific to each board*/ |
| 2962 | switch(brd.device_id){ |
| 2963 | case PCI_DEVICE_ID_MP1 : |
| 2964 | case PCIE_DEVICE_ID_MP1 : |
| 2965 | case PCIE_DEVICE_ID_MP1E : |
| 2966 | case PCIE_DEVICE_ID_GT_MP1 : |
| 2967 | sbdev->nr_ports = 1; |
| 2968 | break; |
| 2969 | case PCI_DEVICE_ID_MP2 : |
| 2970 | case PCIE_DEVICE_ID_MP2 : |
| 2971 | case PCIE_DEVICE_ID_GT_MP2 : |
| 2972 | case PCIE_DEVICE_ID_MP2B : |
| 2973 | case PCIE_DEVICE_ID_MP2E : |
| 2974 | sbdev->nr_ports = 2; |
| 2975 | |
| 2976 | /* serial base address remap */ |
| 2977 | if (sbdev->revision == 0xc0) |
| 2978 | { |
| 2979 | int prev_port_addr = 0; |
| 2980 | |
| 2981 | pci_read_config_dword(pcidev, PCI_BASE_ADDRESS_0, &prev_port_addr); |
| 2982 | pci_remap_base(pcidev, PCI_BASE_ADDRESS_1, prev_port_addr + 8, 8); |
| 2983 | } |
| 2984 | break; |
| 2985 | case PCI_DEVICE_ID_MP4 : |
| 2986 | case PCI_DEVICE_ID_MP4A : |
| 2987 | case PCIE_DEVICE_ID_MP4 : |
| 2988 | case PCI_DEVICE_ID_GT_MP4 : |
| 2989 | case PCI_DEVICE_ID_GT_MP4A : |
| 2990 | case PCIE_DEVICE_ID_GT_MP4 : |
| 2991 | case PCI_DEVICE_ID_MP4M : |
| 2992 | case PCIE_DEVICE_ID_MP4B : |
| 2993 | sbdev->nr_ports = 4; |
| 2994 | |
| 2995 | if(sbdev->revision == 0x91){ |
| 2996 | sbdev->reserved_addr[0] = pcidev->resource[0].start & PCI_BASE_ADDRESS_IO_MASK; |
| 2997 | outb(0x03 , sbdev->reserved_addr[0] + 0x01); |
| 2998 | outb(0x03 , sbdev->reserved_addr[0] + 0x02); |
| 2999 | outb(0x01 , sbdev->reserved_addr[0] + 0x20); |
| 3000 | outb(0x00 , sbdev->reserved_addr[0] + 0x21); |
| 3001 | request_region(sbdev->reserved_addr[0], 32, sbdev->name); |
| 3002 | sbdev->uart_access_addr = pcidev->resource[1].start & PCI_BASE_ADDRESS_IO_MASK; |
| 3003 | sbdev->option_reg_addr = pcidev->resource[2].start & PCI_BASE_ADDRESS_IO_MASK; |
| 3004 | } |
| 3005 | |
| 3006 | /* SB16C1053APCI */ |
| 3007 | if (sbdev->revision == 0xc0) |
| 3008 | { |
| 3009 | int prev_port_addr = 0; |
| 3010 | |
| 3011 | pci_read_config_dword(pcidev, PCI_BASE_ADDRESS_0, &prev_port_addr); |
| 3012 | pci_remap_base(pcidev, PCI_BASE_ADDRESS_1, prev_port_addr + 8, 8); |
| 3013 | pci_remap_base(pcidev, PCI_BASE_ADDRESS_2, prev_port_addr + 16, 8); |
| 3014 | pci_remap_base(pcidev, PCI_BASE_ADDRESS_3, prev_port_addr + 24, 8); |
| 3015 | } |
| 3016 | break; |
| 3017 | case PCI_DEVICE_ID_MP6 : |
| 3018 | case PCI_DEVICE_ID_MP6A : |
| 3019 | case PCI_DEVICE_ID_GT_MP6 : |
| 3020 | case PCI_DEVICE_ID_GT_MP6A : |
| 3021 | sbdev->nr_ports = 6; |
| 3022 | |
| 3023 | /* SB16C1053APCI */ |
| 3024 | if (sbdev->revision == 0xc0) |
| 3025 | { |
| 3026 | int prev_port_addr = 0; |
| 3027 | |
| 3028 | pci_read_config_dword(pcidev, PCI_BASE_ADDRESS_0, &prev_port_addr); |
| 3029 | pci_remap_base(pcidev, PCI_BASE_ADDRESS_1, prev_port_addr + 8, 8); |
| 3030 | pci_remap_base(pcidev, PCI_BASE_ADDRESS_2, prev_port_addr + 16, 16); |
| 3031 | pci_remap_base(pcidev, PCI_BASE_ADDRESS_3, prev_port_addr + 32, 16); |
| 3032 | } |
| 3033 | break; |
| 3034 | case PCI_DEVICE_ID_MP8 : |
| 3035 | case PCIE_DEVICE_ID_MP8 : |
| 3036 | case PCI_DEVICE_ID_GT_MP8 : |
| 3037 | case PCIE_DEVICE_ID_GT_MP8 : |
| 3038 | case PCIE_DEVICE_ID_MP8B : |
| 3039 | sbdev->nr_ports = 8; |
| 3040 | break; |
| 3041 | case PCI_DEVICE_ID_MP32 : |
| 3042 | case PCIE_DEVICE_ID_MP32 : |
| 3043 | case PCI_DEVICE_ID_GT_MP32 : |
| 3044 | case PCIE_DEVICE_ID_GT_MP32 : |
| 3045 | { |
| 3046 | int portnum_hex=0; |
| 3047 | portnum_hex = inb(sbdev->option_reg_addr); |
| 3048 | sbdev->nr_ports = ((portnum_hex/16)*10) + (portnum_hex % 16); |
| 3049 | } |
| 3050 | break; |
Steven Rostedt | 7dfc833 | 2013-01-11 20:17:01 -0500 | [diff] [blame] | 3051 | #ifdef CONFIG_PARPORT_PC |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 3052 | case PCI_DEVICE_ID_MP2S1P : |
| 3053 | sbdev->nr_ports = 2; |
| 3054 | |
| 3055 | /* SB16C1053APCI */ |
| 3056 | if (sbdev->revision == 0xc0) |
| 3057 | { |
| 3058 | int prev_port_addr = 0; |
| 3059 | |
| 3060 | pci_read_config_dword(pcidev, PCI_BASE_ADDRESS_0, &prev_port_addr); |
| 3061 | pci_remap_base(pcidev, PCI_BASE_ADDRESS_1, prev_port_addr + 8, 8); |
| 3062 | } |
| 3063 | |
| 3064 | /* add PC compatible parallel port */ |
| 3065 | parport_pc_probe_port(pcidev->resource[2].start, pcidev->resource[3].start, PARPORT_IRQ_NONE, PARPORT_DMA_NONE, &pcidev->dev, 0); |
| 3066 | break; |
| 3067 | case PCI_DEVICE_ID_MP1P : |
| 3068 | /* add PC compatible parallel port */ |
| 3069 | parport_pc_probe_port(pcidev->resource[2].start, pcidev->resource[3].start, PARPORT_IRQ_NONE, PARPORT_DMA_NONE, &pcidev->dev, 0); |
| 3070 | break; |
Steven Rostedt | b1255fb | 2012-12-14 11:45:42 -0500 | [diff] [blame] | 3071 | #endif |
Steven Rostedt | 68a8129 | 2012-11-16 09:28:49 -0500 | [diff] [blame] | 3072 | } |
| 3073 | |
| 3074 | ret = request_region(sbdev->uart_access_addr, (8*sbdev->nr_ports), sbdev->name); |
| 3075 | |
| 3076 | if (sbdev->revision == 0xc0) |
| 3077 | { |
| 3078 | ret = request_region(sbdev->option_reg_addr, 0x40, sbdev->name); |
| 3079 | } |
| 3080 | else |
| 3081 | { |
| 3082 | ret = request_region(sbdev->option_reg_addr, 0x20, sbdev->name); |
| 3083 | } |
| 3084 | |
| 3085 | |
| 3086 | NR_BOARD++; |
| 3087 | NR_PORTS += sbdev->nr_ports; |
| 3088 | |
| 3089 | /* Enable PCI interrupt */ |
| 3090 | addr = sbdev->option_reg_addr + MP_OPTR_IMR0; |
| 3091 | for(j=0; j < (sbdev->nr_ports/8)+1; j++) |
| 3092 | { |
| 3093 | if (sbdev->poll_type == TYPE_INTERRUPT) |
| 3094 | { |
| 3095 | outb(0xff,addr +j); |
| 3096 | } |
| 3097 | } |
| 3098 | sbdev++; |
| 3099 | |
| 3100 | return 0; |
| 3101 | } |
| 3102 | |
| 3103 | static int __init multi_init(void) |
| 3104 | { |
| 3105 | int ret, i; |
| 3106 | struct pci_dev *dev = NULL; |
| 3107 | |
| 3108 | if(fcr_count==0) |
| 3109 | { |
| 3110 | for(i=0;i<256;i++) |
| 3111 | { |
| 3112 | fcr_arr[i] = 0x01; |
| 3113 | |
| 3114 | } |
| 3115 | } |
| 3116 | if(deep_count==0) |
| 3117 | { |
| 3118 | for(i=0;i<256;i++) |
| 3119 | { |
| 3120 | deep[i] = 1; |
| 3121 | |
| 3122 | } |
| 3123 | } |
| 3124 | if(rtr_count==0) |
| 3125 | { |
| 3126 | for(i=0;i<256;i++) |
| 3127 | { |
| 3128 | rtr[i] = 0x10; |
| 3129 | } |
| 3130 | } |
| 3131 | if(ttr_count==0) |
| 3132 | { |
| 3133 | for(i=0;i<256;i++) |
| 3134 | { |
| 3135 | ttr[i] = 0x38; |
| 3136 | } |
| 3137 | } |
| 3138 | |
| 3139 | |
| 3140 | printk("MULTI INIT\n"); |
| 3141 | for( i=0; i< mp_nrpcibrds; i++) |
| 3142 | { |
| 3143 | |
| 3144 | while( (dev = pci_get_device(mp_pciboards[i].vendor_id, mp_pciboards[i].device_id, dev) ) ) |
| 3145 | |
| 3146 | { |
| 3147 | printk("FOUND~~~\n"); |
| 3148 | // Cent OS bug fix |
| 3149 | // if (mp_pciboards[i].device_id & 0x0800) |
| 3150 | { |
| 3151 | int status; |
| 3152 | pci_disable_device(dev); |
| 3153 | status = pci_enable_device(dev); |
| 3154 | |
| 3155 | if (status != 0) |
| 3156 | { |
| 3157 | printk("Multiport Board Enable Fail !\n\n"); |
| 3158 | status = -ENXIO; |
| 3159 | return status; |
| 3160 | } |
| 3161 | } |
| 3162 | |
| 3163 | init_mp_dev(dev, mp_pciboards[i]); |
| 3164 | } |
| 3165 | } |
| 3166 | |
| 3167 | for (i = 0; i < NR_IRQS; i++) |
| 3168 | spin_lock_init(&irq_lists[i].lock); |
| 3169 | |
| 3170 | ret = mp_register_driver(&multi_reg); |
| 3171 | |
| 3172 | if (ret >= 0) |
| 3173 | multi_register_ports(&multi_reg); |
| 3174 | |
| 3175 | return ret; |
| 3176 | } |
| 3177 | |
| 3178 | static void __exit multi_exit(void) |
| 3179 | { |
| 3180 | int i; |
| 3181 | |
| 3182 | for (i = 0; i < NR_PORTS; i++) |
| 3183 | mp_remove_one_port(&multi_reg, &multi_ports[i].port); |
| 3184 | |
| 3185 | mp_unregister_driver(&multi_reg); |
| 3186 | } |
| 3187 | |
| 3188 | module_init(multi_init); |
| 3189 | module_exit(multi_exit); |
| 3190 | |
| 3191 | MODULE_DESCRIPTION("SystemBase Multiport PCI/PCIe CORE"); |
| 3192 | MODULE_LICENSE("GPL"); |