diff options
| -rw-r--r-- | arch/sandbox/Kconfig | 3 | ||||
| -rw-r--r-- | board/samsung/smdk5420/Kconfig | 6 | ||||
| -rw-r--r-- | common/cros_ec.c | 30 | ||||
| -rw-r--r-- | configs/sandbox_defconfig | 1 | ||||
| -rw-r--r-- | configs/snow_defconfig | 1 | ||||
| -rw-r--r-- | drivers/misc/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/misc/cros_ec.c | 240 | ||||
| -rw-r--r-- | drivers/misc/cros_ec_lpc.c | 13 | ||||
| -rw-r--r-- | drivers/misc/cros_ec_sandbox.c | 73 | ||||
| -rw-r--r-- | include/cros_ec.h | 130 |
10 files changed, 1 insertions, 506 deletions
diff --git a/arch/sandbox/Kconfig b/arch/sandbox/Kconfig index 52e59d2..e1832c9 100644 --- a/arch/sandbox/Kconfig +++ b/arch/sandbox/Kconfig @@ -19,9 +19,6 @@ config DM_GPIO config DM_SERIAL default y -config DM_CROS_EC - default y - config DM_SPI default y diff --git a/board/samsung/smdk5420/Kconfig b/board/samsung/smdk5420/Kconfig index 576abae..a9d62ff 100644 --- a/board/samsung/smdk5420/Kconfig +++ b/board/samsung/smdk5420/Kconfig @@ -22,9 +22,6 @@ config SYS_VENDOR config SYS_CONFIG_NAME default "peach-pi" -config DM_CROS_EC - default y - endif if TARGET_PEACH_PIT @@ -38,9 +35,6 @@ config SYS_VENDOR config SYS_CONFIG_NAME default "peach-pit" -config DM_CROS_EC - default y - endif if TARGET_SMDK5420 diff --git a/common/cros_ec.c b/common/cros_ec.c index 64b4679..f9c74ca 100644 --- a/common/cros_ec.c +++ b/common/cros_ec.c @@ -15,18 +15,8 @@ DECLARE_GLOBAL_DATA_PTR; -#ifndef CONFIG_DM_CROS_EC -struct local_info { - struct cros_ec_dev *cros_ec_dev; /* Pointer to cros_ec device */ - int cros_ec_err; /* Error for cros_ec, 0 if ok */ -}; - -static struct local_info local; -#endif - struct cros_ec_dev *board_get_cros_ec_dev(void) { -#ifdef CONFIG_DM_CROS_EC struct udevice *dev; int ret; @@ -36,30 +26,15 @@ struct cros_ec_dev *board_get_cros_ec_dev(void) return NULL; } return dev_get_uclass_priv(dev); -#else - return local.cros_ec_dev; -#endif -} - -static int board_init_cros_ec_devices(const void *blob) -{ -#ifndef CONFIG_DM_CROS_EC - local.cros_ec_err = cros_ec_init(blob, &local.cros_ec_dev); - if (local.cros_ec_err) - return -1; /* Will report in board_late_init() */ -#endif - - return 0; } int cros_ec_board_init(void) { - return board_init_cros_ec_devices(gd->fdt_blob); + return 0; } int cros_ec_get_error(void) { -#ifdef CONFIG_DM_CROS_EC struct udevice *dev; int ret; @@ -68,7 +43,4 @@ int cros_ec_get_error(void) return ret; return 0; -#else - return local.cros_ec_err; -#endif } diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig index 24d71d0..93bcf46 100644 --- a/configs/sandbox_defconfig +++ b/configs/sandbox_defconfig @@ -6,7 +6,6 @@ CONFIG_FIT_SIGNATURE=y CONFIG_DM=y CONFIG_DEFAULT_DEVICE_TREE="sandbox" CONFIG_CROS_EC=y -CONFIG_DM_CROS_EC=y CONFIG_CROS_EC_SANDBOX=y CONFIG_CROS_EC_KEYB=y CONFIG_CMD_CROS_EC=y diff --git a/configs/snow_defconfig b/configs/snow_defconfig index 2b0d6fa..6417a77 100644 --- a/configs/snow_defconfig +++ b/configs/snow_defconfig @@ -4,7 +4,6 @@ CONFIG_ARCH_EXYNOS=y CONFIG_TARGET_SNOW=y CONFIG_DEFAULT_DEVICE_TREE="exynos5250-snow" CONFIG_CROS_EC=y -CONFIG_DM_CROS_EC=y CONFIG_CROS_EC_I2C=y CONFIG_CROS_EC_KEYB=y CONFIG_CMD_CROS_EC=y diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 36a8f0d..1ec9b22 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -44,16 +44,6 @@ config CROS_EC_SPI provides a faster and more robust interface than I2C but the bugs are less interesting. -config DM_CROS_EC - bool "Enable Driver Model for Chrome OS EC" - depends on DM - help - Enable driver model for the Chrome OS EC interface. This - allows the cros_ec SPI driver to operate with CONFIG_DM_SPI - but otherwise makes few changes. Since cros_ec also supports - LPC (which doesn't support driver model yet), a full - conversion is not yet possible. - config CONFIG_FSL_SEC_MON bool "Enable FSL SEC_MON Driver" help diff --git a/drivers/misc/cros_ec.c b/drivers/misc/cros_ec.c index 6d4d045..982bac7 100644 --- a/drivers/misc/cros_ec.c +++ b/drivers/misc/cros_ec.c @@ -41,10 +41,6 @@ enum { CROS_EC_CMD_HASH_TIMEOUT_MS = 2000, }; -#ifndef CONFIG_DM_CROS_EC -static struct cros_ec_dev static_dev, *last_dev; -#endif - DECLARE_GLOBAL_DATA_PTR; /* Note: depends on enum ec_current_image */ @@ -211,9 +207,7 @@ static int send_command_proto3(struct cros_ec_dev *dev, const void *dout, int dout_len, uint8_t **dinp, int din_len) { -#ifdef CONFIG_DM_CROS_EC struct dm_cros_ec_ops *ops; -#endif int out_bytes, in_bytes; int rv; @@ -228,28 +222,8 @@ static int send_command_proto3(struct cros_ec_dev *dev, if (in_bytes < 0) return in_bytes; -#ifdef CONFIG_DM_CROS_EC ops = dm_cros_ec_get_ops(dev->dev); rv = ops->packet ? ops->packet(dev->dev, out_bytes, in_bytes) : -ENOSYS; -#else - switch (dev->interface) { -#ifdef CONFIG_CROS_EC_SPI - case CROS_EC_IF_SPI: - rv = cros_ec_spi_packet(dev, out_bytes, in_bytes); - break; -#endif -#ifdef CONFIG_CROS_EC_SANDBOX - case CROS_EC_IF_SANDBOX: - rv = cros_ec_sandbox_packet(dev, out_bytes, in_bytes); - break; -#endif - case CROS_EC_IF_NONE: - /* TODO: support protocol 3 for LPC, I2C; for now fall through */ - default: - debug("%s: Unsupported interface\n", __func__); - rv = -1; - } -#endif if (rv < 0) return rv; @@ -261,9 +235,7 @@ static int send_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version, const void *dout, int dout_len, uint8_t **dinp, int din_len) { -#ifdef CONFIG_DM_CROS_EC struct dm_cros_ec_ops *ops; -#endif int ret = -1; /* Handle protocol version 3 support */ @@ -272,38 +244,9 @@ static int send_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version, dout, dout_len, dinp, din_len); } -#ifdef CONFIG_DM_CROS_EC ops = dm_cros_ec_get_ops(dev->dev); ret = ops->command(dev->dev, cmd, cmd_version, (const uint8_t *)dout, dout_len, dinp, din_len); -#else - switch (dev->interface) { -#ifdef CONFIG_CROS_EC_SPI - case CROS_EC_IF_SPI: - ret = cros_ec_spi_command(dev, cmd, cmd_version, - (const uint8_t *)dout, dout_len, - dinp, din_len); - break; -#endif -#ifdef CONFIG_CROS_EC_I2C - case CROS_EC_IF_I2C: - ret = cros_ec_i2c_command(dev, cmd, cmd_version, - (const uint8_t *)dout, dout_len, - dinp, din_len); - break; -#endif -#ifdef CONFIG_CROS_EC_LPC - case CROS_EC_IF_LPC: - ret = cros_ec_lpc_command(dev, cmd, cmd_version, - (const uint8_t *)dout, dout_len, - dinp, din_len); - break; -#endif - case CROS_EC_IF_NONE: - default: - ret = -1; - } -#endif return ret; } @@ -681,7 +624,6 @@ static int cros_ec_check_version(struct cros_ec_dev *dev) struct ec_params_hello req; struct ec_response_hello *resp; -#ifdef CONFIG_DM_CROS_EC struct dm_cros_ec_ops *ops; int ret; @@ -691,13 +633,6 @@ static int cros_ec_check_version(struct cros_ec_dev *dev) if (ret) return ret; } -#else -#ifdef CONFIG_CROS_EC_LPC - /* LPC has its own way of doing this */ - if (dev->interface == CROS_EC_IF_LPC) - return cros_ec_lpc_check_version(dev); -#endif -#endif /* * TODO(sjg@chromium.org). @@ -1027,76 +962,6 @@ int cros_ec_get_ldo(struct cros_ec_dev *dev, uint8_t index, uint8_t *state) return 0; } -#ifndef CONFIG_DM_CROS_EC -/** - * Decode EC interface details from the device tree and allocate a suitable - * device. - * - * @param blob Device tree blob - * @param node Node to decode from - * @param devp Returns a pointer to the new allocated device - * @return 0 if ok, -1 on error - */ -static int cros_ec_decode_fdt(const void *blob, int node, - struct cros_ec_dev **devp) -{ - enum fdt_compat_id compat; - struct cros_ec_dev *dev; - int parent; - - /* See what type of parent we are inside (this is expensive) */ - parent = fdt_parent_offset(blob, node); - if (parent < 0) { - debug("%s: Cannot find node parent\n", __func__); - return -1; - } - - dev = &static_dev; - dev->node = node; - dev->parent_node = parent; - - compat = fdtdec_lookup(blob, parent); - switch (compat) { -#ifdef CONFIG_CROS_EC_SPI - case COMPAT_SAMSUNG_EXYNOS_SPI: - dev->interface = CROS_EC_IF_SPI; - if (cros_ec_spi_decode_fdt(dev, blob)) - return -1; - break; -#endif -#ifdef CONFIG_CROS_EC_I2C - case COMPAT_SAMSUNG_S3C2440_I2C: - dev->interface = CROS_EC_IF_I2C; - if (cros_ec_i2c_decode_fdt(dev, blob)) - return -1; - break; -#endif -#ifdef CONFIG_CROS_EC_LPC - case COMPAT_INTEL_LPC: - dev->interface = CROS_EC_IF_LPC; - break; -#endif -#ifdef CONFIG_CROS_EC_SANDBOX - case COMPAT_SANDBOX_HOST_EMULATION: - dev->interface = CROS_EC_IF_SANDBOX; - break; -#endif - default: - debug("%s: Unknown compat id %d\n", __func__, compat); - return -1; - } - - gpio_request_by_name_nodev(blob, node, "ec-interrupt", 0, &dev->ec_int, - GPIOD_IS_IN); - dev->optimise_flash_write = fdtdec_get_bool(blob, node, - "optimise-flash-write"); - *devp = dev; - - return 0; -} -#endif - -#ifdef CONFIG_DM_CROS_EC int cros_ec_register(struct udevice *dev) { struct cros_ec_dev *cdev = dev_get_uclass_priv(dev); @@ -1125,94 +990,6 @@ int cros_ec_register(struct udevice *dev) return 0; } -#else -int cros_ec_init(const void *blob, struct cros_ec_dev **cros_ecp) -{ - struct cros_ec_dev *dev; - char id[MSG_BYTES]; -#ifdef CONFIG_DM_CROS_EC - struct udevice *udev; - int ret; - - ret = uclass_find_device(UCLASS_CROS_EC, 0, &udev); - if (!ret) - device_remove(udev); - ret = uclass_get_device(UCLASS_CROS_EC, 0, &udev); - if (ret) - return ret; - dev = dev_get_uclass_priv(udev); - return 0; -#else - int node = 0; - - *cros_ecp = NULL; - do { - node = fdtdec_next_compatible(blob, node, - COMPAT_GOOGLE_CROS_EC); - if (node < 0) { - debug("%s: Node not found\n", __func__); - return 0; - } - } while (!fdtdec_get_is_enabled(blob, node)); - - if (cros_ec_decode_fdt(blob, node, &dev)) { - debug("%s: Failed to decode device.\n", __func__); - return -CROS_EC_ERR_FDT_DECODE; - } - - switch (dev->interface) { -#ifdef CONFIG_CROS_EC_SPI - case CROS_EC_IF_SPI: - if (cros_ec_spi_init(dev, blob)) { - debug("%s: Could not setup SPI interface\n", __func__); - return -CROS_EC_ERR_DEV_INIT; - } - break; -#endif -#ifdef CONFIG_CROS_EC_I2C - case CROS_EC_IF_I2C: - if (cros_ec_i2c_init(dev, blob)) - return -CROS_EC_ERR_DEV_INIT; - break; -#endif -#ifdef CONFIG_CROS_EC_LPC - case CROS_EC_IF_LPC: - if (cros_ec_lpc_init(dev, blob)) - return -CROS_EC_ERR_DEV_INIT; - break; -#endif -#ifdef CONFIG_CROS_EC_SANDBOX - case CROS_EC_IF_SANDBOX: - if (cros_ec_sandbox_init(dev, blob)) - return -CROS_EC_ERR_DEV_INIT; - break; -#endif - case CROS_EC_IF_NONE: - default: - return 0; - } -#endif - - if (cros_ec_check_version(dev)) { - debug("%s: Could not detect CROS-EC version\n", __func__); - return -CROS_EC_ERR_CHECK_VERSION; - } - - if (cros_ec_read_id(dev, id, sizeof(id))) { - debug("%s: Could not read KBC ID\n", __func__); - return -CROS_EC_ERR_READ_ID; - } - - /* Remember this device for use by the cros_ec command */ - *cros_ecp = dev; -#ifndef CONFIG_DM_CROS_EC - last_dev = dev; -#endif - debug("Google Chrome EC CROS-EC driver ready, id '%s'\n", id); - - return 0; -} -#endif int cros_ec_decode_region(int argc, char * const argv[]) { @@ -1595,9 +1372,7 @@ static int cros_ec_i2c_passthrough(struct cros_ec_dev *dev, int flag, static int do_cros_ec(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { struct cros_ec_dev *dev; -#ifdef CONFIG_DM_CROS_EC struct udevice *udev; -#endif const char *cmd; int ret = 0; @@ -1606,15 +1381,11 @@ static int do_cros_ec(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) cmd = argv[1]; if (0 == strcmp("init", cmd)) { -#ifdef CONFIG_DM_CROS_EC /* Remove any existing device */ ret = uclass_find_device(UCLASS_CROS_EC, 0, &udev); if (!ret) device_remove(udev); ret = uclass_get_device(UCLASS_CROS_EC, 0, &udev); -#else - ret = cros_ec_init(gd->fdt_blob, &dev); -#endif if (ret) { printf("Could not init cros_ec device (err %d)\n", ret); return 1; @@ -1622,21 +1393,12 @@ static int do_cros_ec(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return 0; } -#ifdef CONFIG_DM_CROS_EC ret = uclass_get_device(UCLASS_CROS_EC, 0, &udev); if (ret) { printf("Cannot get cros-ec device (err=%d)\n", ret); return 1; } dev = dev_get_uclass_priv(udev); -#else - /* Just use the last allocated device; there should be only one */ - if (!last_dev) { - printf("No CROS-EC device available\n"); - return 1; - } - dev = last_dev; -#endif if (0 == strcmp("id", cmd)) { char id[MSG_BYTES]; @@ -1894,10 +1656,8 @@ U_BOOT_CMD( ); #endif -#ifdef CONFIG_DM_CROS_EC UCLASS_DRIVER(cros_ec) = { .id = UCLASS_CROS_EC, .name = "cros_ec", .per_device_auto_alloc_size = sizeof(struct cros_ec_dev), }; -#endif diff --git a/drivers/misc/cros_ec_lpc.c b/drivers/misc/cros_ec_lpc.c index b94501e..ef6e682 100644 --- a/drivers/misc/cros_ec_lpc.c +++ b/drivers/misc/cros_ec_lpc.c @@ -41,18 +41,11 @@ static int wait_for_sync(struct cros_ec_dev *dev) return 0; } -#ifdef CONFIG_DM_CROS_EC int cros_ec_lpc_command(struct udevice *udev, uint8_t cmd, int cmd_version, const uint8_t *dout, int dout_len, uint8_t **dinp, int din_len) { struct cros_ec_dev *dev = dev_get_uclass_priv(udev); -#else -int cros_ec_lpc_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version, - const uint8_t *dout, int dout_len, - uint8_t **dinp, int din_len) -{ -#endif const int cmd_addr = EC_LPC_ADDR_HOST_CMD; const int data_addr = EC_LPC_ADDR_HOST_DATA; const int args_addr = EC_LPC_ADDR_HOST_ARGS; @@ -187,11 +180,7 @@ int cros_ec_lpc_init(struct cros_ec_dev *dev, const void *blob) * seeing whether the EC sets the EC_HOST_ARGS_FLAG_FROM_HOST flag * in args when it responds. */ -#ifdef CONFIG_DM_CROS_EC static int cros_ec_lpc_check_version(struct udevice *dev) -#else -int cros_ec_lpc_check_version(struct cros_ec_dev *dev) -#endif { if (inb(EC_LPC_ADDR_MEMMAP + EC_MEMMAP_ID) == 'E' && inb(EC_LPC_ADDR_MEMMAP + EC_MEMMAP_ID + 1) @@ -206,7 +195,6 @@ int cros_ec_lpc_check_version(struct cros_ec_dev *dev) return -1; } -#ifdef CONFIG_DM_CROS_EC static int cros_ec_probe(struct udevice *dev) { return cros_ec_register(dev); @@ -229,4 +217,3 @@ U_BOOT_DRIVER(cros_ec_lpc) = { .probe = cros_ec_probe, .ops = &cros_ec_ops, }; -#endif diff --git a/drivers/misc/cros_ec_sandbox.c b/drivers/misc/cros_ec_sandbox.c index 282d8d8..fa7d669 100644 --- a/drivers/misc/cros_ec_sandbox.c +++ b/drivers/misc/cros_ec_sandbox.c @@ -467,17 +467,10 @@ static int process_cmd(struct ec_state *ec, return len; } -#ifdef CONFIG_DM_CROS_EC int cros_ec_sandbox_packet(struct udevice *udev, int out_bytes, int in_bytes) { struct cros_ec_dev *dev = dev_get_uclass_priv(udev); struct ec_state *ec = dev_get_priv(dev->dev); -#else -int cros_ec_sandbox_packet(struct cros_ec_dev *dev, int out_bytes, - int in_bytes) -{ - struct ec_state *ec = &s_state; -#endif struct ec_host_request *req_hdr = (struct ec_host_request *)dev->dout; const void *req_data = req_hdr + 1; struct ec_host_response *resp_hdr = (struct ec_host_response *)dev->din; @@ -500,18 +493,9 @@ int cros_ec_sandbox_packet(struct cros_ec_dev *dev, int out_bytes, return in_bytes; } -int cros_ec_sandbox_decode_fdt(struct cros_ec_dev *dev, const void *blob) -{ - return 0; -} - void cros_ec_check_keyboard(struct cros_ec_dev *dev) { -#ifdef CONFIG_DM_CROS_EC struct ec_state *ec = dev_get_priv(dev->dev); -#else - struct ec_state *ec = &s_state; -#endif ulong start; printf("Press keys for EC to detect on reset (ESC=recovery)..."); @@ -525,7 +509,6 @@ void cros_ec_check_keyboard(struct cros_ec_dev *dev) } } -#ifdef CONFIG_DM_CROS_EC int cros_ec_probe(struct udevice *dev) { struct ec_state *ec = dev->priv; @@ -569,61 +552,6 @@ int cros_ec_probe(struct udevice *dev) return cros_ec_register(dev); } -#else - -/** - * Initialize sandbox EC emulation. - * - * @param dev CROS_EC device - * @param blob Device tree blob - * @return 0 if ok, -1 on error - */ -int cros_ec_sandbox_init(struct cros_ec_dev *dev, const void *blob) -{ - struct ec_state *ec = &s_state; - int node; - int err; - - node = fdtdec_next_compatible(blob, 0, COMPAT_GOOGLE_CROS_EC); - if (node < 0) { - debug("Failed to find chrome-ec node'\n"); - return -1; - } - - err = cros_ec_decode_ec_flash(blob, node, &ec->ec_config); - if (err) - return err; - - node = fdtdec_next_compatible(blob, 0, COMPAT_GOOGLE_CROS_EC_KEYB); - if (node < 0) { - debug("%s: No cros_ec keyboard found\n", __func__); - } else if (keyscan_read_fdt_matrix(ec, blob, node)) { - debug("%s: Could not read key matrix\n", __func__); - return -1; - } - - /* If we loaded EC data, check that the length matches */ - if (ec->flash_data && - ec->flash_data_len != ec->ec_config.flash.length) { - printf("EC data length is %x, expected %x, discarding data\n", - ec->flash_data_len, ec->ec_config.flash.length); - os_free(ec->flash_data); - ec->flash_data = NULL; - } - - /* Otherwise allocate the memory */ - if (!ec->flash_data) { - ec->flash_data_len = ec->ec_config.flash.length; - ec->flash_data = os_malloc(ec->flash_data_len); - if (!ec->flash_data) - return -ENOMEM; - } - - return 0; -} -#endif - -#ifdef CONFIG_DM_CROS_EC struct dm_cros_ec_ops cros_ec_ops = { .packet = cros_ec_sandbox_packet, }; @@ -641,4 +569,3 @@ U_BOOT_DRIVER(cros_ec_sandbox) = { .priv_auto_alloc_size = sizeof(struct ec_state), .ops = &cros_ec_ops, }; -#endif diff --git a/include/cros_ec.h b/include/cros_ec.h index 8457c80..850c09e 100644 --- a/include/cros_ec.h +++ b/include/cros_ec.h @@ -15,31 +15,9 @@ #include <cros_ec_message.h> #include <asm/gpio.h> -#ifndef CONFIG_DM_CROS_EC -/* Which interface is the device on? */ -enum cros_ec_interface_t { - CROS_EC_IF_NONE, - CROS_EC_IF_SPI, - CROS_EC_IF_I2C, - CROS_EC_IF_LPC, /* Intel Low Pin Count interface */ - CROS_EC_IF_SANDBOX, -}; -#endif - /* Our configuration information */ struct cros_ec_dev { -#ifdef CONFIG_DM_CROS_EC struct udevice *dev; /* Transport device */ -#else - enum cros_ec_interface_t interface; - struct spi_slave *spi; /* Our SPI slave, if using SPI */ - int node; /* Our node */ - int parent_node; /* Our parent node (interface) */ - unsigned int cs; /* Our chip select */ - unsigned int addr; /* Device address (for I2C) */ - unsigned int bus_num; /* Bus number (for I2C) */ - unsigned int max_frequency; /* Maximum interface frequency */ -#endif struct gpio_desc ec_int; /* GPIO used as EC interrupt line */ int protocol_version; /* Protocol version to use */ int optimise_flash_write; /* Don't write erased flash blocks */ @@ -240,8 +218,6 @@ int cros_ec_flash_update_rw(struct cros_ec_dev *dev, */ struct cros_ec_dev *board_get_cros_ec_dev(void); -#ifdef CONFIG_DM_CROS_EC - struct dm_cros_ec_ops { int (*check_version)(struct udevice *dev); int (*command)(struct udevice *dev, uint8_t cmd, int cmd_version, @@ -255,112 +231,6 @@ struct dm_cros_ec_ops { int cros_ec_register(struct udevice *dev); -#else /* !CONFIG_DM_CROS_EC */ - -/* Internal interfaces */ -int cros_ec_i2c_init(struct cros_ec_dev *dev, const void *blob); -int cros_ec_spi_init(struct cros_ec_dev *dev, const void *blob); -int cros_ec_lpc_init(struct cros_ec_dev *dev, const void *blob); -int cros_ec_sandbox_init(struct cros_ec_dev *dev, const void *blob); - -/** - * Read information from the fdt for the i2c cros_ec interface - * - * @param dev CROS-EC device - * @param blob Device tree blob - * @return 0 if ok, -1 if we failed to read all required information - */ -int cros_ec_i2c_decode_fdt(struct cros_ec_dev *dev, const void *blob); - -/** - * Read information from the fdt for the spi cros_ec interface - * - * @param dev CROS-EC device - * @param blob Device tree blob - * @return 0 if ok, -1 if we failed to read all required information - */ -int cros_ec_spi_decode_fdt(struct cros_ec_dev *dev, const void *blob); - -/** - * Read information from the fdt for the sandbox cros_ec interface - * - * @param dev CROS-EC device - * @param blob Device tree blob - * @return 0 if ok, -1 if we failed to read all required information - */ -int cros_ec_sandbox_decode_fdt(struct cros_ec_dev *dev, const void *blob); - -/** - * Check whether the LPC interface supports new-style commands. - * - * LPC has its own way of doing this, which involves checking LPC values - * visible to the host. Do this, and update dev->protocol_version accordingly. - * - * @param dev CROS-EC device to check - */ -int cros_ec_lpc_check_version(struct cros_ec_dev *dev); - -/** - * Send a command to an I2C CROS-EC device and return the reply. - * - * This rather complicated function deals with sending both old-style and - * new-style commands. The old ones have just a command byte and arguments. - * The new ones have version, command, arg-len, [args], chksum so are 3 bytes - * longer. - * - * The device's internal input/output buffers are used. - * - * @param dev CROS-EC device - * @param cmd Command to send (EC_CMD_...) - * @param cmd_version Version of command to send (EC_VER_...) - * @param dout Output data (may be NULL If dout_len=0) - * @param dout_len Size of output data in bytes - * @param dinp Returns pointer to response data - * @param din_len Maximum size of response in bytes - * @return number of bytes in response, or -1 on error - */ -int cros_ec_i2c_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version, - const uint8_t *dout, int dout_len, - uint8_t **dinp, int din_len); - -/** - * Send a command to a LPC CROS-EC device and return the reply. - * - * The device's internal input/output buffers are used. - * - * @param dev CROS-EC device - * @param cmd Command to send (EC_CMD_...) - * @param cmd_version Version of command to send (EC_VER_...) - * @param dout Output data (may be NULL If dout_len=0) - * @param dout_len Size of output data in bytes - * @param dinp Returns pointer to response data - * @param din_len Maximum size of response in bytes - * @return number of bytes in response, or -1 on error - */ -int cros_ec_lpc_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version, - const uint8_t *dout, int dout_len, - uint8_t **dinp, int din_len); - -int cros_ec_spi_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version, - const uint8_t *dout, int dout_len, - uint8_t **dinp, int din_len); - -/** - * Send a packet to a CROS-EC device and return the response packet. - * - * Expects the request packet to be stored in dev->dout. Stores the response - * packet in dev->din. - * - * @param dev CROS-EC device - * @param out_bytes Size of request packet to output - * @param in_bytes Maximum size of response packet to receive - * @return number of bytes in response packet, or <0 on error - */ -int cros_ec_spi_packet(struct cros_ec_dev *dev, int out_bytes, int in_bytes); -int cros_ec_sandbox_packet(struct cros_ec_dev *dev, int out_bytes, - int in_bytes); -#endif - /** * Dump a block of data for a command. * |