52 static void validate_firmware_response(struct kim_data_s *kim_gdata)  in validate_firmware_response()  argument
54 	struct sk_buff *skb = kim_gdata->rx_skb;  in validate_firmware_response()
65 		memcpy(kim_gdata->resp_buffer,  in validate_firmware_response()
66 				kim_gdata->rx_skb->data,  in validate_firmware_response()
67 				kim_gdata->rx_skb->len);  in validate_firmware_response()
68 		kim_gdata->rx_state = ST_W4_PACKET_TYPE;  in validate_firmware_response()
69 		kim_gdata->rx_skb = NULL;  in validate_firmware_response()
70 		kim_gdata->rx_count = 0;  in validate_firmware_response()
78 	complete_all(&kim_gdata->kim_rcvd);  in validate_firmware_response()
85 static inline int kim_check_data_len(struct kim_data_s *kim_gdata, int len)  in kim_check_data_len()  argument
87 	register int room = skb_tailroom(kim_gdata->rx_skb);  in kim_check_data_len()
92 		validate_firmware_response(kim_gdata);  in kim_check_data_len()
99 		kfree_skb(kim_gdata->rx_skb);  in kim_check_data_len()
104 		kim_gdata->rx_state = ST_W4_DATA;  in kim_check_data_len()
105 		kim_gdata->rx_count = len;  in kim_check_data_len()
111 	kim_gdata->rx_state = ST_W4_PACKET_TYPE;  in kim_check_data_len()
112 	kim_gdata->rx_skb = NULL;  in kim_check_data_len()
113 	kim_gdata->rx_count = 0;  in kim_check_data_len()
124 static void kim_int_recv(struct kim_data_s *kim_gdata,  in kim_int_recv()  argument
140 		if (kim_gdata->rx_count) {  in kim_int_recv()
141 			len = min_t(unsigned int, kim_gdata->rx_count, count);  in kim_int_recv()
142 			skb_put_data(kim_gdata->rx_skb, ptr, len);  in kim_int_recv()
143 			kim_gdata->rx_count -= len;  in kim_int_recv()
147 			if (kim_gdata->rx_count)  in kim_int_recv()
151 			switch (kim_gdata->rx_state) {  in kim_int_recv()
155 				validate_firmware_response(kim_gdata);  in kim_int_recv()
156 				kim_gdata->rx_state = ST_W4_PACKET_TYPE;  in kim_int_recv()
157 				kim_gdata->rx_skb = NULL;  in kim_int_recv()
162 				(unsigned char *)&kim_gdata->rx_skb->data[1];  in kim_int_recv()
164 				kim_check_data_len(kim_gdata, *plen);  in kim_int_recv()
171 			kim_gdata->rx_state = ST_W4_HEADER;  in kim_int_recv()
172 			kim_gdata->rx_count = 2;  in kim_int_recv()
182 		kim_gdata->rx_skb =  in kim_int_recv()
184 		if (!kim_gdata->rx_skb) {  in kim_int_recv()
186 			kim_gdata->rx_state = ST_W4_PACKET_TYPE;  in kim_int_recv()
187 			kim_gdata->rx_count = 0;  in kim_int_recv()
190 		skb_reserve(kim_gdata->rx_skb, 8);  in kim_int_recv()
191 		kim_gdata->rx_skb->cb[0] = 4;  in kim_int_recv()
192 		kim_gdata->rx_skb->cb[1] = 0;  in kim_int_recv()
198 static long read_local_version(struct kim_data_s *kim_gdata, char *bts_scr_name)  in read_local_version()  argument
206 	reinit_completion(&kim_gdata->kim_rcvd);  in read_local_version()
207 	if (4 != st_int_write(kim_gdata->core_data, read_ver_cmd, 4)) {  in read_local_version()
213 		&kim_gdata->kim_rcvd, msecs_to_jiffies(CMD_RESP_TIME));  in read_local_version()
218 	reinit_completion(&kim_gdata->kim_rcvd);  in read_local_version()
224 		MAKEWORD(kim_gdata->resp_buffer[12],  in read_local_version()
225 				kim_gdata->resp_buffer[13]);  in read_local_version()
237 	kim_gdata->version.full = version;  in read_local_version()
238 	kim_gdata->version.chip = chip;  in read_local_version()
239 	kim_gdata->version.maj_ver = maj_ver;  in read_local_version()
240 	kim_gdata->version.min_ver = min_ver;  in read_local_version()
271 static long download_firmware(struct kim_data_s *kim_gdata)  in download_firmware()  argument
282 	err = read_local_version(kim_gdata, bts_scr_name);  in download_firmware()
288 	    request_firmware(&kim_gdata->fw_entry, bts_scr_name,  in download_firmware()
289 			     &kim_gdata->kim_pdev->dev);  in download_firmware()
290 	if (unlikely((err != 0) || (kim_gdata->fw_entry->data == NULL) ||  in download_firmware()
291 		     (kim_gdata->fw_entry->size == 0))) {  in download_firmware()
296 	ptr = (void *)kim_gdata->fw_entry->data;  in download_firmware()
297 	len = kim_gdata->fw_entry->size;  in download_firmware()
331 					st_get_uart_wr_room(kim_gdata->core_data);  in download_firmware()
335 					release_firmware(kim_gdata->fw_entry);  in download_firmware()
346 				release_firmware(kim_gdata->fw_entry);  in download_firmware()
352 			reinit_completion(&kim_gdata->kim_rcvd);  in download_firmware()
359 			err = st_int_write(kim_gdata->core_data,  in download_firmware()
363 				release_firmware(kim_gdata->fw_entry);  in download_firmware()
374 				release_firmware(kim_gdata->fw_entry);  in download_firmware()
381 					&kim_gdata->kim_rcvd,  in download_firmware()
386 				release_firmware(kim_gdata->fw_entry);  in download_firmware()
389 			reinit_completion(&kim_gdata->kim_rcvd);  in download_firmware()
405 	release_firmware(kim_gdata->fw_entry);  in download_firmware()
419 	struct kim_data_s	*kim_gdata = st_gdata->kim_data;  in st_kim_recv()  local
424 	kim_int_recv(kim_gdata, data, count);  in st_kim_recv()
433 	struct kim_data_s	*kim_gdata = (struct kim_data_s *)kim_data;  in st_kim_complete()  local
434 	complete(&kim_gdata->ldisc_installed);  in st_kim_complete()
449 	struct kim_data_s	*kim_gdata = (struct kim_data_s *)kim_data;  in st_kim_start()  local
452 	pdata = kim_gdata->kim_pdev->dev.platform_data;  in st_kim_start()
457 			pdata->chip_enable(kim_gdata);  in st_kim_start()
460 		gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_LOW);  in st_kim_start()
462 		gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_HIGH);  in st_kim_start()
465 		reinit_completion(&kim_gdata->ldisc_installed);  in st_kim_start()
467 		kim_gdata->ldisc_install = 1;  in st_kim_start()
469 		sysfs_notify(&kim_gdata->kim_pdev->dev.kobj,  in st_kim_start()
473 			&kim_gdata->ldisc_installed, msecs_to_jiffies(LDISC_TIME));  in st_kim_start()
478 			err = st_kim_stop(kim_gdata);  in st_kim_start()
483 			err = download_firmware(kim_gdata);  in st_kim_start()
488 				err = st_kim_stop(kim_gdata);  in st_kim_start()
511 	struct kim_data_s	*kim_gdata = (struct kim_data_s *)kim_data;  in st_kim_stop()  local
513 		kim_gdata->kim_pdev->dev.platform_data;  in st_kim_stop()
514 	struct tty_struct	*tty = kim_gdata->core_data->tty;  in st_kim_stop()
516 	reinit_completion(&kim_gdata->ldisc_installed);  in st_kim_stop()
526 	kim_gdata->ldisc_install = 0;  in st_kim_stop()
527 	sysfs_notify(&kim_gdata->kim_pdev->dev.kobj, NULL, "install");  in st_kim_stop()
531 		&kim_gdata->ldisc_installed, msecs_to_jiffies(LDISC_TIME));  in st_kim_stop()
538 	gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_LOW);  in st_kim_stop()
540 	gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_HIGH);  in st_kim_stop()
542 	gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_LOW);  in st_kim_stop()
546 		pdata->chip_disable(kim_gdata);  in st_kim_stop()
556 	struct kim_data_s *kim_gdata = (struct kim_data_s *)s->private;  in version_show()  local
557 	seq_printf(s, "%04X %d.%d.%d\n", kim_gdata->version.full,  in version_show()
558 			kim_gdata->version.chip, kim_gdata->version.maj_ver,  in version_show()
559 			kim_gdata->version.min_ver);  in version_show()
565 	struct kim_data_s *kim_gdata = (struct kim_data_s *)s->private;  in list_show()  local
566 	kim_st_list_protocols(kim_gdata->core_data, s);  in list_show()
663 	struct kim_data_s	*kim_gdata;  in st_kim_ref()  local
668 	kim_gdata = platform_get_drvdata(pdev);  in st_kim_ref()
669 	if (!kim_gdata)  in st_kim_ref()
672 	*core_data = kim_gdata->core_data;  in st_kim_ref()
690 	struct kim_data_s	*kim_gdata;  in kim_probe()  local
702 	kim_gdata = kzalloc(sizeof(struct kim_data_s), GFP_KERNEL);  in kim_probe()
703 	if (!kim_gdata) {  in kim_probe()
707 	platform_set_drvdata(pdev, kim_gdata);  in kim_probe()
709 	err = st_core_init(&kim_gdata->core_data);  in kim_probe()
716 	kim_gdata->core_data->kim_data = kim_gdata;  in kim_probe()
719 	kim_gdata->nshutdown = pdata->nshutdown_gpio;  in kim_probe()
720 	err = gpio_request(kim_gdata->nshutdown, "kim");  in kim_probe()
722 		pr_err(" gpio %d request failed ", kim_gdata->nshutdown);  in kim_probe()
727 	err = gpio_direction_output(kim_gdata->nshutdown, 0);  in kim_probe()
729 		pr_err(" unable to configure gpio %d", kim_gdata->nshutdown);  in kim_probe()
734 	kim_gdata->kim_pdev = pdev;  in kim_probe()
735 	init_completion(&kim_gdata->kim_rcvd);  in kim_probe()
736 	init_completion(&kim_gdata->ldisc_installed);  in kim_probe()
745 	strncpy(kim_gdata->dev_name, pdata->dev_name, UART_DEV_NAME_LEN);  in kim_probe()
746 	kim_gdata->flow_cntrl = pdata->flow_cntrl;  in kim_probe()
747 	kim_gdata->baud_rate = pdata->baud_rate;  in kim_probe()
753 				kim_gdata, &version_fops);  in kim_probe()
755 				kim_gdata, &list_fops);  in kim_probe()
759 	st_core_exit(kim_gdata->core_data);  in kim_probe()
762 	kfree(kim_gdata);  in kim_probe()
771 	struct kim_data_s	*kim_gdata;  in kim_remove()  local
773 	kim_gdata = platform_get_drvdata(pdev);  in kim_remove()
785 	kim_gdata->kim_pdev = NULL;  in kim_remove()
786 	st_core_exit(kim_gdata->core_data);  in kim_remove()
788 	kfree(kim_gdata);  in kim_remove()
789 	kim_gdata = NULL;  in kim_remove()