Angel Pons | 210a008 | 2020-04-02 23:48:24 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 2 | |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 3 | #include <console/console.h> |
| 4 | #include <device/device.h> |
| 5 | #include <device/pnp.h> |
| 6 | #include <ec/acpi/ec.h> |
Kyösti Mälkki | cbf9571 | 2020-01-05 08:05:45 +0200 | [diff] [blame] | 7 | #include <option.h> |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 8 | |
| 9 | #include "ec.h" |
| 10 | #include "chip.h" |
| 11 | |
| 12 | typedef struct ec_kontron_it8516e_config config_t; |
| 13 | |
| 14 | enum { /* EC commands */ |
Nico Huber | 6d6a2ac | 2013-07-12 14:35:00 +0200 | [diff] [blame] | 15 | IT8516E_CMD_SET_SYSTEMP_TYPE = 0x06, |
| 16 | IT8516E_CMD_GET_SYSTEMP_TYPE = 0x07, |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 17 | IT8516E_CMD_GET_FAN_MODE = 0x10, |
| 18 | IT8516E_CMD_SET_FAN_MODE = 0x11, |
| 19 | IT8516E_CMD_GET_FAN_PWM = 0x12, |
| 20 | IT8516E_CMD_SET_FAN_PWM = 0x13, |
| 21 | IT8516E_CMD_GET_FAN_SPEED = 0x14, |
| 22 | IT8516E_CMD_SET_FAN_SPEED = 0x15, |
| 23 | IT8516E_CMD_GET_FAN_TEMP = 0x16, |
| 24 | IT8516E_CMD_SET_FAN_TEMP = 0x17, |
Nico Huber | 9ce71b3 | 2013-07-12 14:43:11 +0200 | [diff] [blame] | 25 | IT8516E_CMD_SET_FAN_LIMITS = 0x1a, |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 26 | }; |
| 27 | |
Nico Huber | 1f9f678 | 2013-07-18 11:50:59 +0200 | [diff] [blame] | 28 | /** |
| 29 | * Sets the type of the external temperature sensor used |
| 30 | * |
| 31 | * @param type Type of sensor to set |
| 32 | */ |
Nico Huber | 6d6a2ac | 2013-07-12 14:35:00 +0200 | [diff] [blame] | 33 | static void it8516e_set_systemp_type(const u8 type) |
| 34 | { |
| 35 | if (send_ec_command(IT8516E_CMD_SET_SYSTEMP_TYPE)) |
| 36 | return; |
| 37 | send_ec_data(type); |
| 38 | } |
| 39 | |
Nico Huber | 1f9f678 | 2013-07-18 11:50:59 +0200 | [diff] [blame] | 40 | /** |
| 41 | * Sets the operating mode of a fan |
| 42 | * |
| 43 | * @param idx Selects the fan; 0: CPU, 1: System |
| 44 | * @param mode Mode to set |
| 45 | */ |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 46 | static void it8516e_set_fan_mode(const u8 idx, const u8 mode) |
| 47 | { |
| 48 | if (send_ec_command(IT8516E_CMD_SET_FAN_MODE)) |
| 49 | return; |
| 50 | if (send_ec_data(idx)) |
| 51 | return; |
| 52 | send_ec_data(mode); |
| 53 | } |
| 54 | |
Nico Huber | 1f9f678 | 2013-07-18 11:50:59 +0200 | [diff] [blame] | 55 | /** |
| 56 | * Sets the PWM rate of a fan in IT8516E_MODE_PWM |
| 57 | * |
| 58 | * @param idx Selects the fan; 0: CPU, 1: System |
| 59 | * @param pwm PWM rate measured in 255ths |
| 60 | */ |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 61 | static void it8516e_set_fan_pwm(const u8 idx, const u8 pwm) |
| 62 | { |
| 63 | if (send_ec_command(IT8516E_CMD_SET_FAN_PWM)) |
| 64 | return; |
| 65 | if (send_ec_data(idx)) |
| 66 | return; |
| 67 | send_ec_data(pwm); |
| 68 | } |
| 69 | |
Nico Huber | 1f9f678 | 2013-07-18 11:50:59 +0200 | [diff] [blame] | 70 | /** |
| 71 | * Sets the target speed in RPM for a fan in IT8516E_MODE_SPEED |
| 72 | * |
| 73 | * @param idx Selects the fan; 0: CPU, 1: System |
| 74 | * @param speed Speed in RPM |
| 75 | */ |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 76 | static void it8516e_set_fan_speed(const u8 idx, const u16 speed) |
| 77 | { |
| 78 | if (send_ec_command(IT8516E_CMD_SET_FAN_SPEED)) |
| 79 | return; |
| 80 | if (send_ec_data(idx)) |
| 81 | return; |
| 82 | if (send_ec_data(speed & 0xff)) |
| 83 | return; |
| 84 | send_ec_data(speed >> 8); |
| 85 | } |
| 86 | |
Nico Huber | 1f9f678 | 2013-07-18 11:50:59 +0200 | [diff] [blame] | 87 | /** |
| 88 | * Sets the target temperature for a fan in IT8516E_MODE_THERMAL |
| 89 | * |
| 90 | * @param idx Selects the fan; 0: CPU, 1: System |
| 91 | * @param temp Temperature in 64ths degree C |
| 92 | */ |
Nico Huber | 260c33b | 2013-07-18 11:27:30 +0200 | [diff] [blame] | 93 | static void it8516e_set_fan_temperature(const u8 idx, const u16 temp) |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 94 | { |
| 95 | if (send_ec_command(IT8516E_CMD_SET_FAN_TEMP)) |
| 96 | return; |
| 97 | if (send_ec_data(idx)) |
| 98 | return; |
Nico Huber | 260c33b | 2013-07-18 11:27:30 +0200 | [diff] [blame] | 99 | if (send_ec_data(temp & 0xff)) |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 100 | return; |
Nico Huber | 260c33b | 2013-07-18 11:27:30 +0200 | [diff] [blame] | 101 | send_ec_data(temp >> 8); |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 102 | } |
| 103 | |
Nico Huber | 1f9f678 | 2013-07-18 11:50:59 +0200 | [diff] [blame] | 104 | /** |
| 105 | * Sets the minimum and maximum PWM rate of a fan in IT8516E_MODE_THERMAL |
| 106 | * |
| 107 | * @param idx Selects the fan; 0: CPU, 1: System |
| 108 | * @param min Minimum PWM rate in % |
| 109 | * @param max Maximum PWM rate in % |
| 110 | */ |
Nico Huber | 9ce71b3 | 2013-07-12 14:43:11 +0200 | [diff] [blame] | 111 | static void it8516e_set_fan_limits(const u8 idx, const u8 min, const u8 max) |
| 112 | { |
| 113 | if (send_ec_command(IT8516E_CMD_SET_FAN_LIMITS)) |
| 114 | return; |
| 115 | if (send_ec_data(idx)) |
| 116 | return; |
| 117 | if (send_ec_data(min)) |
| 118 | return; |
| 119 | send_ec_data(max); |
| 120 | } |
| 121 | |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 122 | static void it8516e_set_fan_from_options(const config_t *const config, |
| 123 | const u8 fan_idx) |
| 124 | { |
| 125 | static char fanX_mode[] = "fanX_mode"; |
| 126 | static char fanX_target[] = "fanX_target"; |
Nico Huber | 9ce71b3 | 2013-07-12 14:43:11 +0200 | [diff] [blame] | 127 | static char fanX_min[] = "fanX_min"; |
| 128 | static char fanX_max[] = "fanX_max"; |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 129 | |
Nico Huber | 9ce71b3 | 2013-07-12 14:43:11 +0200 | [diff] [blame] | 130 | u8 fan_mode = config->default_fan_mode[fan_idx]; |
| 131 | u16 fan_target = config->default_fan_target[fan_idx]; |
| 132 | u8 fan_min = config->default_fan_min[fan_idx]; |
| 133 | u8 fan_max = config->default_fan_max[fan_idx]; |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 134 | |
| 135 | fanX_mode[3] = '1' + fan_idx; |
Angel Pons | 88dcb31 | 2021-04-26 17:10:28 +0200 | [diff] [blame] | 136 | fan_mode = get_uint_option(fanX_mode, fan_mode); |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 137 | if (!fan_mode) |
| 138 | fan_mode = IT8516E_MODE_AUTO; |
| 139 | it8516e_set_fan_mode(fan_idx, fan_mode); |
| 140 | |
| 141 | fanX_target[3] = '1' + fan_idx; |
Angel Pons | 88dcb31 | 2021-04-26 17:10:28 +0200 | [diff] [blame] | 142 | fan_target = get_uint_option(fanX_target, fan_target); |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 143 | switch (fan_mode) { |
| 144 | case IT8516E_MODE_AUTO: |
| 145 | printk(BIOS_DEBUG, |
| 146 | "Setting it8516e fan%d " |
| 147 | "control to auto.\n", |
| 148 | fan_idx + 1); |
| 149 | break; |
| 150 | case IT8516E_MODE_PWM: |
| 151 | printk(BIOS_DEBUG, |
| 152 | "Setting it8516e fan%d " |
| 153 | "control to %d%% PWM.\n", |
| 154 | fan_idx + 1, fan_target); |
Nico Huber | ca4f073 | 2013-07-18 12:27:00 +0200 | [diff] [blame] | 155 | if (fan_target > 100) /* Constrain to 100% */ |
| 156 | fan_target = 100; |
Nico Huber | 942b6c2 | 2013-07-12 14:40:23 +0200 | [diff] [blame] | 157 | it8516e_set_fan_pwm(fan_idx, (fan_target * 255) / 100); |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 158 | break; |
| 159 | case IT8516E_MODE_SPEED: |
| 160 | printk(BIOS_DEBUG, |
| 161 | "Setting it8516e fan%d " |
| 162 | "control to %d RPMs.\n", |
| 163 | fan_idx + 1, fan_target); |
| 164 | it8516e_set_fan_speed(fan_idx, fan_target); |
| 165 | break; |
| 166 | case IT8516E_MODE_THERMAL: |
| 167 | printk(BIOS_DEBUG, |
Nico Huber | 9ce71b3 | 2013-07-12 14:43:11 +0200 | [diff] [blame] | 168 | "Setting it8516e fan%d control to %d C.\n", |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 169 | fan_idx + 1, fan_target); |
Nico Huber | ca4f073 | 2013-07-18 12:27:00 +0200 | [diff] [blame] | 170 | if (fan_target > 1024) /* Constrain to 1K */ |
| 171 | fan_target = 1024; |
Nico Huber | 260c33b | 2013-07-18 11:27:30 +0200 | [diff] [blame] | 172 | it8516e_set_fan_temperature(fan_idx, fan_target * 64); |
Nico Huber | 9ce71b3 | 2013-07-12 14:43:11 +0200 | [diff] [blame] | 173 | |
| 174 | fanX_min[3] = '1' + fan_idx; |
| 175 | fanX_max[3] = '1' + fan_idx; |
Angel Pons | 88dcb31 | 2021-04-26 17:10:28 +0200 | [diff] [blame] | 176 | fan_min = get_uint_option(fanX_min, fan_min); |
| 177 | fan_max = get_uint_option(fanX_max, fan_max); |
Nico Huber | 9ce71b3 | 2013-07-12 14:43:11 +0200 | [diff] [blame] | 178 | |
| 179 | if (!fan_max || fan_max > 100) /* Constrain fan_max to 100% */ |
| 180 | fan_max = 100; |
| 181 | if (fan_min >= 100) /* Constrain fan_min to 99% */ |
| 182 | fan_min = 99; |
| 183 | if (fan_max <= fan_min) /* If fan_min is the higher of the two, |
| 184 | it's safer for the hardware to keep |
| 185 | its value. Therefore, update fan_max. */ |
| 186 | fan_max = fan_min + 1; |
| 187 | |
| 188 | printk(BIOS_DEBUG, |
| 189 | "Setting it8516e fan%d limits to %d%% - %d%% PWM.\n", |
| 190 | fan_idx + 1, fan_min, fan_max); |
| 191 | it8516e_set_fan_limits(fan_idx, fan_min, fan_max); |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 192 | break; |
| 193 | } |
| 194 | } |
| 195 | |
Edward O'Callaghan | 2c9d2cf | 2014-10-27 23:29:29 +1100 | [diff] [blame] | 196 | static void it8516e_pm2_init(struct device *dev) |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 197 | { |
| 198 | const config_t *const config = dev->chip_info; |
| 199 | |
| 200 | /* TODO: Set frequency / divider? */ |
| 201 | |
| 202 | ec_set_ports(find_resource(dev, PNP_IDX_IO1)->base, |
| 203 | find_resource(dev, PNP_IDX_IO0)->base); |
| 204 | |
Angel Pons | 88dcb31 | 2021-04-26 17:10:28 +0200 | [diff] [blame] | 205 | u8 systemp_type = get_uint_option("systemp_type", config->default_systemp); |
Nico Huber | 6d6a2ac | 2013-07-12 14:35:00 +0200 | [diff] [blame] | 206 | if (systemp_type >= IT8516E_SYSTEMP_LASTPLUSONE) |
| 207 | systemp_type = IT8516E_SYSTEMP_NONE; |
| 208 | it8516e_set_systemp_type(systemp_type); |
| 209 | |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 210 | it8516e_set_fan_from_options(config, 0); |
| 211 | it8516e_set_fan_from_options(config, 1); |
| 212 | } |
| 213 | |
| 214 | static struct device_operations it8516e_pm2_ops = { |
Nico Huber | 9cb0941 | 2013-06-15 15:30:19 +0200 | [diff] [blame] | 215 | .read_resources = pnp_read_resources, |
| 216 | .set_resources = pnp_set_resources, |
| 217 | .enable_resources = pnp_enable_resources, |
| 218 | .enable = pnp_enable, |
| 219 | .init = it8516e_pm2_init |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 220 | }; |
| 221 | |
| 222 | static struct pnp_info it8516e_dev_infos[] = { |
Samuel Holland | 7daac91 | 2017-06-06 22:55:01 -0500 | [diff] [blame] | 223 | { NULL, IT8516E_LDN_UART1, PNP_IO0 | PNP_IRQ0, 0x07f8, }, |
| 224 | { NULL, IT8516E_LDN_UART2, PNP_IO0 | PNP_IRQ0, 0x07f8, }, |
| 225 | { NULL, IT8516E_LDN_SWUC, PNP_IO0 | PNP_IRQ0, 0xffe0, }, |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 226 | { NULL, IT8516E_LDN_MOUSE, PNP_IRQ0, }, |
Samuel Holland | 7daac91 | 2017-06-06 22:55:01 -0500 | [diff] [blame] | 227 | { NULL, IT8516E_LDN_KBD, PNP_IO0 | PNP_IO1 | PNP_IRQ0, 0x07ff, 0x07ff, }, |
| 228 | { NULL, IT8516E_LDN_SMFI, PNP_IO0 | PNP_IRQ0, 0xfff0, }, |
| 229 | { NULL, IT8516E_LDN_BRAM, PNP_IO0 | PNP_IO1, 0xfffe, 0xfffe, }, |
| 230 | { NULL, IT8516E_LDN_PM1, PNP_IO0 | PNP_IO1 | PNP_IRQ0, 0x07ff, 0x07ff, }, |
| 231 | { &it8516e_pm2_ops, IT8516E_LDN_PM2, PNP_IO0 | PNP_IO1 | PNP_IRQ0, 0x07ff, 0x07ff, }, |
| 232 | { NULL, IT8516E_LDN_PM3, PNP_IO0 | PNP_IO1 | PNP_IRQ0, 0x07ff, 0x07ff, }, |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 233 | }; |
| 234 | |
Edward O'Callaghan | 2c9d2cf | 2014-10-27 23:29:29 +1100 | [diff] [blame] | 235 | static void it8516e_enable(struct device *dev) |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 236 | { |
| 237 | pnp_enable_devices(dev, &pnp_ops, |
| 238 | ARRAY_SIZE(it8516e_dev_infos), it8516e_dev_infos); |
| 239 | } |
| 240 | |
| 241 | const struct chip_operations ec_kontron_it8516e_ops = { |
Nicholas Sudsgaard | bfb11be | 2024-01-30 09:53:46 +0900 | [diff] [blame^] | 242 | .name = "Kontron (Fintec/ITE) IT8516E EC", |
Nico Huber | a53266b | 2013-05-02 15:26:08 +0200 | [diff] [blame] | 243 | .enable_dev = it8516e_enable |
| 244 | }; |